CN111641430B

CN111641430B - Signal adjusting method and related equipment

Info

Publication number: CN111641430B
Application number: CN201910115692.7A
Authority: CN
Inventors: 高俊枫; 汪孙节; 刘洪�; 唐瑜键; 王朗
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-02-14
Filing date: 2019-02-14
Publication date: 2021-08-31
Anticipated expiration: 2039-02-14
Also published as: CN111641430A

Abstract

The embodiment of the application discloses a signal adjusting method, which is applied to a radio frequency identification system and comprises the following steps: the first exciter receives interference indication information sent by a first receiver, the interference indication information is used for indicating that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter; the first exciter adjusts the receiving configuration parameters of the first receiver according to the information of the interference signal; or, the interference indication information also carries an identifier of an interfering device generating the interfering signal, and the first exciter adjusts the transmission configuration parameters of the interfering device according to the information of the interfering signal. The embodiment of the application can reduce signal interference in the radio frequency identification system.

Description

Signal adjusting method and related equipment

Technical Field

The present application relates to the field of radio frequency identification technologies, and in particular, to a signal adjustment method and related devices.

Background

In order to meet the network access and communication requirements of large-scale internet of things terminals, the deployment cost and power consumption of terminal equipment need to be reduced. Since the power consumption and the volume of a terminal having a radio frequency signal generating and transmitting function are relatively large, and the terminal is not suitable for many scenarios of large-scale terminal networking, a concept of a Radio Frequency Identification (RFID) system is proposed by those skilled in the art.

In a radio frequency identification system, a terminal device may be provided with a radio frequency excitation signal by a transceiver. The radio frequency excitation signal is modulated, has a radio wave with a certain transmission frequency, and can provide energy for the terminal equipment and enable the terminal equipment to feed back preset data. Referring to fig. 1, a schematic diagram of a radio frequency identification system includes a transceiver and a terminal device, the transceiver includes a first transceiver and a second transceiver, and the terminal device includes a first terminal device and a second terminal device, wherein the first transceiver corresponds to the first terminal device and the second transceiver corresponds to the second terminal device. In the operation of the radio frequency identification system, firstly, the first transceiver transmits a radio frequency excitation signal f1 to the first terminal device; after the first terminal device receives the radio frequency excitation signal sent by the transceiver, backscattering the radio frequency excitation signal f1, wherein the backscattering radio frequency excitation signal f1 carries data of the first terminal device; the first transceiver then receives the backscattered excitation signal f1, and may identify the identity of the first terminal device and acquire data from the backscattered radio frequency excitation signal f 1. The workflow of the second transceiver and the second terminal device is similar to the workflow of the first transceiver and the first terminal device described above.

In practical operation, the frequency of the rf signal f1 and the rf signal f2 may be the same, and the rf signal f1 and the rf signal f2, or the backscattered rf signal f2 may interfere with each other, thereby affecting the data acquisition of the terminal device by the transceiver. How to reduce signal interference in an rfid system is a problem to be solved by those skilled in the art.

Disclosure of Invention

The embodiment of the application provides a signal adjusting method and related equipment, which can reduce signal interference in a radio frequency identification system.

In a first aspect, the present application provides a signal adjusting method applied to an rfid system, where the rfid system includes at least one exciter and each exciter corresponds to one or more receivers, the rfid system further includes at least one terminal device, the exciter is configured to transmit an rf excitation signal, the terminal device is configured to receive the rf excitation signal and backscatter the received rf excitation signal, the backscatter rf excitation signal carries target data of the terminal device, the receiver is configured to receive the rf excitation signal backscattered by the terminal device, and the receiver is further configured to transmit a signal to the terminal device and/or to the corresponding exciter, and the method includes:

a first exciter receives interference indication information sent by a first receiver, wherein the interference indication information is used for indicating that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter; the first exciter adjusts a receiving configuration parameter of the first receiver according to the information of the interference signal, wherein the receiving configuration parameter comprises one or more of time domain, frequency domain and power of the receiving signal; or, the interference indication information also carries an identification of an interfering device generating the interfering signal, and the first exciter adjusts a transmission configuration parameter of the interfering device according to the information of the interfering signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of the transmission signal.

By this method, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, or in the case that the interference indication information also carries the identity of the interfering device generating the interfering signal, the first exciter may adjust the sending configuration parameters of the interfering device according to the interference indication information. By the signal adjusting mode, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

With reference to the first aspect, in a possible implementation manner, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, and the adjusting, by the first exciter, the receiving configuration parameter of the first receiver according to the information of the interfering signal includes: the first exciter sends a first adjusting instruction to the first receiver, wherein the first adjusting instruction is used for instructing the first receiver to adjust the time domain of the received signal to a second time domain, or instructing the first receiver to adjust the frequency domain of the received signal to a second frequency domain, or instructing the first receiver to adjust the power of the received signal to a second power, wherein the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is larger than the first power; the first exciter adjusts the time domain of a first radio frequency excitation signal to the second time domain, or adjusts the frequency domain of the first radio frequency excitation signal to the second frequency domain, or adjusts the power of the first radio frequency excitation signal to the second power, wherein the first radio frequency excitation signal is the radio frequency excitation signal sent by the first exciter to the terminal equipment under the first receiver.

With reference to the first aspect, in a possible implementation manner, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, the interference indication information also carries an identifier of an interfering device of the interfering signal, and the adjusting, by the first exciter, the transmission configuration parameter of the interfering device according to the information of the interfering signal includes: the first exciter sends a second adjusting instruction to the interfering device according to the identifier of the interfering device, where the second adjusting instruction is used to instruct the interfering device to adjust the time domain of the sending signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the sending signal to be a third frequency domain, or instruct the interfering device to adjust the power of the sending signal to be a third power; the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, and the third power is smaller than the first power.

With reference to the first aspect, in a possible implementation manner, the interfering device is a second receiver corresponding to the first exciter.

With reference to the first aspect, in a possible implementation manner, the radio frequency identification system includes at least two exciters, the interfering device is a third receiver corresponding to a second exciter, the second exciter is different from the first exciter, and the first exciter sends a second adjustment instruction to the interfering device according to an identifier of the interfering device, including: the exciter sends first indication information to the second exciter according to the identification of the interference device, wherein the first indication information is used for indicating the second exciter to send the second adjustment instruction to the third receiver.

With reference to the first aspect, in a possible implementation manner, the radio frequency identification system includes at least two exciters, the interfering device is a second exciter, the second exciter is different from the first exciter, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, the interference indication information also carries an identifier of the interfering device of the interfering signal, and the first exciter adjusts a transmission configuration parameter of the interfering device according to the information of the interfering signal, including: the first exciter sends a third adjusting instruction to the second exciter according to the identifier of the interfering device, where the third adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In a second aspect, the present application provides a further signal conditioning method applied to an rfid system, where the rfid system includes at least one exciter and one or more receivers corresponding to each exciter, the rfid system further includes at least one terminal device, the exciter is configured to transmit an rf excitation signal, the terminal device is configured to receive the rf excitation signal and backscatter the received rf excitation signal, the backscatter rf excitation signal carries target data of the terminal device, the receiver is configured to receive the rf excitation signal backscattered by the terminal device, and the receiver is further configured to transmit a signal to the terminal device and/or the corresponding exciter, and the method includes:

when the first receiver detects that the first receiver is interfered by an interference signal, the first receiver determines the information of the interference signal; the information of the interference signal comprises a first time domain, or a first frequency domain, or a first power of the interference signal; the first receiver sends interference indication information to a first exciter, the interference indication information carries information of the interference signal, and the first exciter is an exciter corresponding to the first receiver; the first receiver receives a first adjusting instruction sent by a first exciter, wherein the first adjusting instruction is used for instructing the first receiver to adjust the time domain of a received signal to be a second time domain, or instructing the first receiver to adjust the frequency domain of the received signal to be a second frequency domain, or instructing the first receiver to adjust the power of the received signal to be a second power, the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is larger than the first power; and the first receiver adjusts the time domain of the received signal to be a second time domain according to the first adjusting instruction, or adjusts the frequency domain of the received signal to be a second frequency domain, or adjusts the power of the received signal to be a second power.

By the method, the first exciter can adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, and by the signal adjusting mode, the influence of the interference signal on the radio frequency interference signal which is received by the receiver and is backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

In a third aspect, the present application provides a further signal adjusting method applied to an rfid system, where the rfid system includes at least two exciters, each exciter corresponds to one or more receivers, the rfid system further includes at least one terminal device, the exciter is configured to transmit an rf excitation signal, the terminal device is configured to receive the rf excitation signal and backscatter the received rf excitation signal, the backscatter rf excitation signal carries target data of the terminal device, the receiver is configured to receive the rf excitation signal backscattered by the terminal device, and the receiver is further configured to transmit a signal to the terminal device and/or the corresponding exciter, and the method includes:

when a first exciter judges that the first exciter is interfered by an interference signal of a second exciter, the first exciter determines information of the interference signal; the first exciter adjusts the receiving configuration parameters of the first exciter according to the information of the interference signal, wherein the receiving configuration parameters comprise one or more items of time domain, frequency domain and power of the received signal; or, the interference signal further carries an identifier of a second exciter generating the interference signal, and the first exciter adjusts a transmission configuration parameter of the second exciter according to the information of the interference signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of the transmission signal.

By this method, the first exciter may adjust its own receiving configuration parameters according to its own determined information of the interfering signal, or in the case that the interfering signal also carries an identifier of a second exciter that generates the interfering signal, the first exciter may adjust its own transmitting configuration parameters according to the information of the interfering signal. By the signal adjusting mode, the influence of interference signals on communication signals received by the exciter can be reduced, and the signal interference in the radio frequency identification system can be reduced.

With reference to the third aspect, in a possible implementation manner, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal; the first exciter adjusts the receiving configuration parameters of the first exciter according to the information of the interference signal, and the receiving configuration parameters comprise: the first exciter adjusts the time domain of the self-sent signal to be a second time domain, or adjusts the frequency domain of the self-sent signal to be a second frequency domain, or adjusts the power of the self-sent signal to be a second power; the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

With reference to the third aspect, in a possible implementation manner, the method further includes: and a first adjusting instruction sent by the first exciter to a receiver corresponding to the first exciter, wherein the first adjusting instruction is used to instruct the first exciter to adjust the time domain of the received signal to be a second time domain, or instruct the first exciter to adjust the frequency domain of the received signal to be a second frequency domain, or instruct the first exciter to adjust the power of the received signal to be a second power.

With reference to the third aspect, in a possible implementation manner, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, the interfering signal further carries an identifier of a second exciter that generates the interfering signal, and the first exciter adjusts a transmission configuration parameter of the second exciter according to the information of the interfering signal, including: the first exciter sends a second adjusting instruction to the second exciter according to the identifier of the second exciter, wherein the second adjusting instruction is used for instructing the second exciter to adjust the time domain of the sending signal to be a third time domain, or instructing the second exciter to adjust the frequency domain of the sending signal to be a third frequency domain, or instructing the second exciter to adjust the power of the sending signal to be a third power, or instructing the second exciter to adjust the beam direction of the sending signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In a fourth aspect, an embodiment of the present application provides a first exciter, where the first exciter is applied to a radio frequency identification system, where the radio frequency identification system includes at least one exciter, where each exciter corresponds to one or more receivers, where the radio frequency identification system further includes at least one terminal device, where the exciter is configured to transmit a radio frequency excitation signal, where the terminal device is configured to receive the radio frequency excitation signal and backscatter the received radio frequency excitation signal, where the backscatter radio frequency excitation signal carries target data of the terminal device, where the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, and where the receiver is further configured to transmit a signal to the terminal device and/or to the corresponding exciter, where the first exciter includes a receiving unit and an adjusting unit: the receiving unit is configured to receive interference indication information sent by a first receiver, where the interference indication information is used to indicate that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter; the adjusting unit is configured to adjust a reception configuration parameter of the first receiver according to the information of the interference signal, where the reception configuration parameter includes one or more of a time domain, a frequency domain, and a power of a received signal; or, the interference indication information also carries an identifier of an interfering device that generates the interfering signal, and the adjusting unit is configured to adjust a transmission configuration parameter of the interfering device according to the information of the interfering signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of the transmission signal.

By means of such a first exciter, the reception configuration parameters of the first receiver may be adjusted according to the interference indication information sent by the first receiver, or in case the interference indication information also carries the identity of the interfering device generating the interfering signal, the transmission configuration parameters of the interfering device may be adjusted according to the interference indication information. By the first exciter, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

With reference to the fourth aspect, in a possible implementation manner, the information of the interference signal includes a first time domain, a first frequency domain, or a first power of the interference signal, and the adjusting unit is specifically configured to: sending a first adjusting instruction to the first receiver, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power; and adjusting the time domain of a first radio frequency excitation signal to a second time domain, or adjusting the frequency domain of the first radio frequency excitation signal to a second frequency domain, or adjusting the power of the first radio frequency excitation signal to a second power, wherein the first radio frequency excitation signal is the radio frequency excitation signal sent by the first exciter to the terminal equipment under the first receiver.

With reference to the fourth aspect, in a possible implementation manner, the information of the interference signal includes a first time domain, a first frequency domain, or a first power of the interference signal, and the interference indication information also carries an identifier of an interfering device of the interference signal, where the adjusting unit is specifically configured to: sending a second adjusting instruction to the interfering device according to the identifier of the interfering device, where the second adjusting instruction is used to instruct the interfering device to adjust the time domain of the sent signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the sent signal to be a third frequency domain, or instruct the interfering device to adjust the power of the sent signal to be a third power; the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, and the third power is smaller than the first power.

With reference to the fourth aspect, in a possible implementation manner, the interfering device is a second receiver corresponding to the first exciter.

With reference to the fourth aspect, in a possible implementation manner, the radio frequency identification system includes at least two exciters, the jamming device is a third receiver corresponding to a second exciter, the second exciter is different from the first exciter, and the adjusting unit is specifically configured to: and sending first indication information to the second exciter according to the identification of the interference equipment, wherein the first indication information is used for indicating the second exciter to send the second adjusting instruction to the third receiver.

With reference to the fourth aspect, in a possible implementation manner, the radio frequency identification system includes at least two exciters, the interfering device is a second exciter, the second exciter is different from the first exciter, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, the interference indication information also carries an identifier of the interfering device of the interfering signal, and the adjusting unit is specifically configured to: sending a third adjusting instruction to the second exciter according to the identifier of the interfering device, where the third adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In a fifth aspect, the present embodiment provides a first receiver, which is applied to a radio frequency identification system, where the radio frequency identification system includes at least one exciter, each exciter corresponds to one or more receivers, the radio frequency identification system further includes at least one terminal device, the exciter is configured to transmit a radio frequency excitation signal, the terminal device is configured to receive the radio frequency excitation signal and backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carries target data of the terminal device, the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, the receiver is further configured to transmit a signal to the terminal device and/or the corresponding exciter, the first receiver includes a determining unit, a transmitting unit, a receiving unit, and an adjusting unit: the determining unit is used for determining the information of the interference signal when the first receiver detects that the first receiver is interfered by the interference signal; the information of the interference signal comprises a first time domain, or a first frequency domain, or a first power of the interference signal; the sending unit is configured to send interference indication information to a first exciter, where the interference indication information carries information of the interference signal, and the first exciter is an exciter corresponding to the first receiver; the receiving unit is configured to receive a first adjusting instruction sent by the exciter, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust a power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power; the adjusting unit is configured to adjust the time domain of the received signal to be a second time domain, or adjust the frequency domain of the received signal to be a second frequency domain, or adjust the power of the received signal to be a second power according to the first adjusting instruction.

By the first receiver, the first exciter can adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, and by the first receiver, the influence of an interference signal on a radio frequency interference signal backscattered by the terminal equipment and received by the receiver can be reduced, and the signal interference in the radio frequency identification system can be reduced.

In a sixth aspect, the present embodiments provide a first exciter, the first exciter is applied to a radio frequency identification system, the radio frequency identification system includes at least two exciters, each exciter corresponds to one or more receivers, the radio frequency identification system further includes at least one terminal device, the exciter is configured to transmit a radio frequency excitation signal, the terminal device is configured to receive the radio frequency excitation signal and backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carries target data of the terminal device, the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, the receiver is further configured to transmit a signal to the terminal device and/or the corresponding exciter, the first exciter includes a determining unit and an adjusting unit: the determination unit is used for determining the information of the interference signal when the first exciter determines that the first exciter is interfered by the interference signal of the second exciter; the adjusting unit is used for adjusting the receiving configuration parameters of the adjusting unit according to the information of the interference signal, wherein the receiving configuration parameters comprise one or more items of time domain, frequency domain and power of the receiving signal; or, the interference signal further carries an identifier of a second exciter generating the interference signal, and the adjusting unit is configured to adjust a transmission configuration parameter of the second exciter according to the information of the interference signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of the transmission signal.

By the first exciter, the receiving configuration parameters of the first exciter can be adjusted according to the information of the interference signal determined by the first exciter, or the sending configuration parameters of the second exciter can be adjusted according to the information of the interference signal under the condition that the interference signal also carries the identifier of the second exciter generating the interference signal. By means of the first exciter, the influence of interference signals on communication signals received by the exciter can be reduced, and signal interference in a radio frequency identification system can be reduced.

With reference to the sixth aspect, in a possible implementation manner, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal; the adjusting unit is specifically configured to: adjusting the time domain of the self-sent signal to be a second time domain, or adjusting the frequency domain of the self-sent signal to be a second frequency domain, or adjusting the power of the self-sent signal to be a second power; the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

With reference to the sixth aspect, in a possible implementation manner, the first exciter further includes a transmitting unit: the sending unit is configured to send a first adjustment instruction to a receiver corresponding to the first exciter, where the first adjustment instruction is used to instruct the first exciter to adjust a time domain of a received signal to be a second time domain, or instruct the first exciter to adjust a frequency domain of the received signal to be a second frequency domain, or instruct the first exciter to adjust power of the received signal to be second power.

With reference to the sixth aspect, in a possible implementation manner, the information of the interference signal includes a first time domain, a first frequency domain, or a first power of the interference signal, and the interference signal further carries an identifier of a second exciter that generates the interference signal, and the adjusting unit is specifically configured to: sending a second adjusting instruction to the second exciter according to the identifier of the second exciter, where the second adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In a seventh aspect, an embodiment of the present application provides a first actuator, where the first actuator includes a processor and a memory, where the memory is used for storing program instructions, and the processor is configured to invoke the program instructions to execute a method as described in the first aspect or any possible implementation manner of the first aspect.

In an eighth aspect, embodiments of the present application provide a first receiver, including a processor and a memory, where the memory is configured to store program instructions, and the processor is configured to invoke the program instructions to execute a method as described in the second aspect or any possible implementation manner of the second aspect.

In a ninth aspect, embodiments of the present application provide a first actuator, including a processor and a memory, where the memory is used for storing program instructions, and the processor is configured to invoke the program instructions to execute a method as described in the third aspect or any possible implementation manner of the third aspect.

In a tenth aspect, an embodiment of the present application provides a radio frequency identification system, including an exciter and a receiver, where the exciter is the exciter described in any one of the above-mentioned fourth aspect or fourth possible implementation manners, or the exciter described in any one of the above-mentioned sixth aspect or sixth possible implementation manners, or the exciter described in any one of the above-mentioned seventh aspect or seventh possible implementation manners, or the first exciter described in any one of the above-mentioned ninth aspect or ninth possible implementation manners; the receiver is the receiver described in any possible implementation manner of the fifth aspect or the fifth aspect, or the receiver described in any possible implementation manner of the eighth aspect or the eighth aspect.

In this embodiment, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, or in a case that the interference indication information also carries an identifier of an interfering device that generates the interfering signal, the first exciter may adjust the sending configuration parameters of the interfering device according to the interference indication information. By the signal adjusting mode, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic diagram of a radio frequency identification system;

fig. 2 is a schematic diagram of a radio frequency identification system according to an embodiment of the present application;

fig. 3 is a flowchart of a signal adjustment method according to an embodiment of the present application;

fig. 4 is a flowchart of another signal adjustment method provided in the embodiment of the present application;

fig. 5 is a flowchart of another signal adjustment method provided in the embodiment of the present application;

fig. 6 is a flowchart of another signal adjustment method provided in the embodiment of the present application;

fig. 7 is a flowchart of another signal adjustment method provided in the embodiment of the present application;

FIG. 8 is a schematic diagram of a first actuator provided by an embodiment of the present application;

fig. 9 is a schematic diagram of a first receiver provided in an embodiment of the present application;

FIG. 10 is a schematic diagram of yet another first actuator provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of yet another first actuator provided by an embodiment of the present application;

fig. 12 is a schematic diagram of a further first receiver provided in an embodiment of the present application;

fig. 13 is a schematic diagram of yet another first actuator provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application are described in more detail below.

Referring to fig. 2, a schematic diagram of a radio frequency identification system according to an embodiment of the present application is shown. The radio frequency identification system in the embodiment of the application comprises at least one exciter, one or more receivers corresponding to each exciter, and at least one terminal device. The rfid system illustrated in fig. 2 includes two exciters, a first exciter and a second exciter, respectively; the receivers corresponding to the first exciter are a first receiver and a second receiver, and the receivers corresponding to the second exciter are a third receiver and a fourth receiver. The first terminal device is in the coverage of the first receiver, the second terminal device is in the coverage of the second receiver, the third terminal device is in the coverage of the third receiver, and the fourth terminal device is in the coverage of the fourth receiver.

The functions of the exciter, receiver and terminal equipment are further described below.

The exciter is configured to send a radio frequency excitation signal to one or more terminal devices under the receiver corresponding to the exciter (for example, the first exciter sends a radio frequency excitation signal to a terminal device under the first receiver corresponding to the first exciter), where the radio frequency excitation signal is modulated and has an electric wave with a certain transmission frequency, and the radio frequency excitation signal can provide energy for the terminal device and enable the terminal device to feed back preset data. Wherein the exciter corresponds to the receiver means that the exciter and the receiver are in communication (for example, the first exciter and the first receiver establish communication through the communication signal f 2). For example, the receiver may send a request signal to the exciter instructing the exciter to send a radio frequency excitation signal to one or more terminal devices under the receiver; the exciter may send a feedback signal to the receiver for the request signal. Optionally, the exciter may further send a control signal to the terminal device, and may also wirelessly charge the terminal device. Optionally, the exciter may also communicate with other exciters via a network, or the exciter may communicate with other exciters via a server or the like. Specifically, the exciter is a device capable of generating a radio frequency excitation signal, and the exciter may be a base station, a mobile phone, a television tower, or the like.

The terminal device further includes a receiver, configured to receive the radio frequency excitation signal backscattered by the terminal device (for example, the first receiver receives the radio frequency excitation signal f4 backscattered by the first terminal device), where the backscattered radio frequency excitation signal carries data preset by the terminal device. It should be noted that the receiver may receive the rf excitation signal backscattered by one or more terminals within its coverage area. The receiver can also detect whether the receiver itself is interfered by the receiver. Specifically, when the receiver determines that the receiver is interfered by an interference signal, information of the interference signal can be determined, and interference signal indication information containing the information of the interference signal can be sent to the exciter. Optionally, the receiver is further configured to transmit signals to the terminal device and/or to the corresponding exciter. Optionally, the receiver may further send a control signal to the terminal device (for example, the control signal f6 sent by the first receiver to the first terminal device), and may also wirelessly charge the terminal device. Specifically, the receiver is a device capable of receiving the radio frequency excitation signal backscattered by the terminal device, and the receiver may be a mobile phone, a wearable device (e.g., a bracelet, a watch, etc.), a notebook computer, a tablet computer, or the like.

And the terminal equipment is used for receiving the radio frequency excitation signal sent by the exciter and backscattering the received radio frequency excitation signal, wherein the backscattering radio frequency excitation signal carries preset data of the terminal equipment. The preset data may be Identity (ID) information of the terminal device, pre-stored content, or data collected by a sensor of the terminal device. Specifically, the terminal device may be a terminal device of the internet of things (e.g., a passive terminal device of the internet of things, a semi-active terminal device of the internet of things, an active terminal device of the internet of things), a radio frequency identification tag, and the like.

The following describes the case of interfering signals that may be present in the radio frequency excitation system illustrated in fig. 2.

For the first receiver, the signals to be received by the first receiver are the communication signal f2 sent by the first exciter and the radio frequency excitation signal f4 backscattered by the first terminal device, and these two signals may be interfered by the communication signal f3 sent by the second receiver to the first exciter or the control signal f7 sent by the second receiver to the second terminal device.

For the first exciter, the signals to be received by the first exciter are the communication signal f2 transmitted by the first receiver and the communication signal f3 transmitted by the second receiver, which may be interfered by the radio frequency excitation signal f10 or the radio frequency excitation signal f11 transmitted by the second exciter.

Referring to fig. 3, which is a flowchart of a method for adjusting a signal provided by an embodiment of the present application, the method may be implemented based on the architecture shown in fig. 2, a first exciter described below may be a first exciter in the system architecture shown in fig. 2, and a first receiver described below may be a first receiver in the system architecture shown in fig. 2; the method includes, but is not limited to, the following steps.

S301, when the first receiver detects that the first receiver is interfered by an interference signal, the first receiver determines the information of the interference signal.

The information of the interference signal may include a first time domain, a first frequency domain, or a first power of the interference signal.

Optionally, before step 301, the first receiver may also detect whether it is interfered by an interference signal. A method for the first receiver to detect whether it is interfered by an interference signal will be described below.

The first method is that the first receiver calculates the waveform of a received signal received by the first receiver, and if the waveform of the received signal and a preset waveform do not meet a preset similar condition, the time domain of the received signal is in a preset time domain range, and the frequency domain of the received signal is in a preset frequency domain range, the first receiver determines that the first receiver is interfered by an interference signal.

The preset waveform is generated according to a first radio frequency excitation signal, the preset time domain range is determined according to the time domain of the first radio frequency excitation signal, and the preset time domain range is determined according to the time domain of the first radio frequency excitation signal; the first radio frequency excitation signal is a radio frequency excitation signal transmitted by the first exciter to terminal equipment under the first receiver.

It should be noted that, if the waveform of the received signal and the preset waveform meet the preset similar condition, it indicates that the received signal is a radio frequency excitation signal backscattered by the terminal device; and if the waveform of the received signal and the preset waveform do not meet the preset similar condition, indicating that the received signal is not the radio frequency excitation signal backscattered by the terminal equipment. If the received signal is not the radio frequency excitation signal backscattered by the terminal device, the time domain of the received signal is in the preset time domain range, and the frequency domain of the received signal is in the preset frequency domain range, it indicates that the received signal affects the first receiver to receive the radio frequency excitation signal backscattered by the terminal device, and generates interference to the first receiver.

In the second method, the first receiver calculates the power of a received signal received by itself, and if the power of the received signal is greater than a preset value, and the time domain of the received signal is within a preset time domain range, and the frequency domain of the received signal is within a preset frequency domain range, the first receiver determines that the first receiver is interfered by an interference signal.

Wherein the preset value is the maximum power value of the terminal equipment backscattered radio frequency excitation signal determined according to the first radio frequency excitation signal. The meaning of the first rf excitation signal, the predetermined time domain range and the predetermined frequency domain range is the same as that described above, and will not be described herein again.

It should be noted that, if the power of the received signal is greater than the preset value, it indicates that the received signal is not the rf excitation signal backscattered by the terminal device, and the power of the received signal is too high, which may affect the rf excitation signal backscattered by the terminal device. If the power of the received signal is greater than the preset value, the time domain of the received signal is in the preset time domain range, and the frequency domain of the received signal is in the preset frequency domain range, it is indicated that the received signal affects the first receiver to receive the radio frequency excitation signal backscattered by the terminal device, and interference is generated on the first receiver.

In the third method, the received signal carries an identifier of a device generating the received signal, and if the first receiver determines that the device generating the received signal is not a terminal device, and the time domain of the received signal is in a preset time domain range and the frequency domain of the received signal is in a preset frequency domain range, the first receiver determines that the first receiver is interfered by an interference signal. The meaning of the preset time domain range and the preset frequency domain range is the same as that described above, and is not described herein again.

It should be noted that there may be other methods for the first receiver to detect whether the first receiver is interfered by the interference signal, and details are not described here. Optionally, two or three of the above-described methods may be combined to determine whether the first receiver is interfered by the interference signal.

S302, the first receiver sends interference indication information to the first exciter.

Wherein, the first exciter is the exciter corresponding to the first receiver.

S303, after the first exciter receives the interference indication information sent by the first receiver, the first exciter adjusts the receiving configuration parameter of the first receiver according to the information of the interference signal; or, the interference indication information also carries an identifier of an interfering device generating the interfering signal, and the first exciter adjusts the transmission configuration parameters of the interfering device according to the information of the interfering signal.

Wherein the receiving configuration parameters include one or more of time domain, frequency domain and power of the received signal. The transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of a transmission signal.

Specifically, for a specific implementation that the first exciter adjusts the receiving configuration parameters of the first receiver according to the information of the interference signal, reference may be made to the following detailed description of the flow shown in fig. 4, which is not repeated herein.

Specifically, in a case that the interference indication information also carries an identifier of an interfering device that generates the interfering signal, the specific implementation manner of the first exciter adjusting the transmission configuration parameter of the interfering device according to the information of the interfering signal may refer to the following detailed description of the flow shown in fig. 5 or fig. 6, which is not described herein again.

By adjusting the receiving configuration parameters of the first receiver or adjusting the sending configuration parameters of the interfering device, the influence of interfering signals on radio frequency interfering signals received by the receiver and backscattered by the terminal device can be reduced, and the signal interference in the radio frequency identification system can be reduced; meanwhile, the method can realize the simultaneous operation of a plurality of receivers without mutual interference, and can further improve the total capacity of the system.

In the method shown in fig. 3, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, or in a case that the interference indication information also carries an identifier of an interfering device generating the interfering signal, the first exciter may adjust the sending configuration parameters of the interfering device according to the interference indication information. By the signal adjusting mode, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Referring to fig. 4, which is a flowchart illustrating a further signal adjustment method provided by the embodiment of the present application, the method may be implemented based on the architecture shown in fig. 2, the first exciter described below may be a first exciter in the system architecture shown in fig. 2, and the first receiver described below may be a first receiver in the system architecture shown in fig. 2; the method includes, but is not limited to, the following steps.

S401, when the first receiver detects that the first receiver is interfered by an interference signal, the first receiver determines the information of the interference signal.

The execution manner of this step may refer to the execution manner of step S301, and is not described herein again.

S402, the first receiver sends interference indication information to the first exciter.

The interference indication information includes information of the interference signal, where the information of the interference signal includes a first time domain, a first frequency domain, or a first power of the interference signal.

S403, after the first exciter receives the interference indication information sent by the first receiver, the first exciter adjusts the time domain of the first radio frequency excitation signal to a second time domain, or adjusts the frequency domain of the first radio frequency excitation signal to a second frequency domain, or adjusts the power of the first radio frequency excitation signal to a second power.

The first radio frequency excitation signal is a radio frequency excitation signal sent by the first exciter to terminal equipment under the first receiver. The second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

S404, the first exciter sends a first adjusting instruction to the first receiver.

The first adjusting instruction is used to instruct the first receiver to adjust the time domain of the received signal to be the second time domain, or instruct the first receiver to adjust the frequency domain of the received signal to be the second frequency domain, or instruct the first receiver to adjust the power of the received signal to be the second power.

It should be noted that the content indicated by the first adjustment instruction corresponds to the adjustment operation performed by the first actuator. For example, if the first exciter adjusts the time domain of the first rf excitation signal to the second time domain, the first adjusting instruction is used to instruct the first receiver to adjust the time domain of the received signal to the second time domain.

S405, after receiving the first adjustment instruction, the first receiver adjusts the time domain of the received signal to a second time domain, or adjusts the frequency domain of the received signal to a second frequency domain, or adjusts the power of the received signal to a second power.

It should be noted that the content indicated by the first adjustment instruction corresponds to the adjustment operation performed by the first receiver. For example, if the first adjustment instruction is used to instruct the first receiver to adjust the time domain of the received signal to be the second time domain, the first receiver adjusts the time domain of the received signal to be the second time domain.

In the method shown in fig. 4, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, and by this signal adjustment, the influence of the interference signal on the radio frequency interference signal backscattered by the terminal device and received by the receiver can be reduced, and signal interference in the radio frequency identification system can be reduced.

Referring to fig. 5, which is a flowchart of a further method for adjusting a signal provided by an embodiment of the present application, the method may be implemented based on the architecture shown in fig. 2, the first exciter described below may be a first exciter in the system architecture shown in fig. 2, and the first receiver described below may be a first receiver in the system architecture shown in fig. 2. In fig. 5, the interfering device is a receiver. The method includes, but is not limited to, the following steps.

S501, when the first receiver detects that the first receiver is interfered by an interference signal, the first receiver determines the information of the interference signal. The execution manner of this step may refer to the execution manner of step S301, and is not described herein again.

S502, the first receiver sends interference indication information to the first exciter.

S503, after the first exciter receives the interference indication information sent by the first receiver, the first exciter sends a second adjustment instruction to the interfering device according to the identifier of the interfering device.

The interference indication information also carries an identifier of an interfering device generating the interference signal, and the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain and power of the transmission signal. The second adjustment instruction is used to instruct the interfering device to adjust the time domain of the transmission signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the interfering device to adjust the power of the transmission signal to be a third power. The third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, and the third power is smaller than the first power.

And S504, the interference device adjusts the time domain of the transmission signal to be a third time domain, or adjusts the frequency domain of the transmission signal to be a third frequency domain, or adjusts the power of the transmission signal to be a third power according to the second adjustment instruction.

It should be noted that the content indicated by the second adjustment instruction corresponds to the adjustment operation performed by the interfering device. For example, if the second adjustment instruction is used to instruct the interfering device to adjust the time domain of the received signal to be the third time domain, the interfering device adjusts the time domain of the received signal to be the third time domain.

In one possible implementation, the interfering device is a second receiver corresponding to the first exciter.

In one possible implementation, the rfid system includes at least two actuators, and the jamming device is a third receiver corresponding to a second actuator that is different from the first actuator. Optionally, the manner in which the first exciter sends the second adjustment instruction to the interfering device according to the identifier of the interfering device may be: the exciter sends first indication information to the second exciter according to the identification of the interference device, wherein the first indication information is used for indicating the second exciter to send the second adjustment instruction to the third receiver. The first indication information includes a second adjustment instruction.

In the method shown in fig. 5, in a case that the interference indication information also carries an identification of an interfering device generating the interfering signal, the first exciter may adjust a transmission configuration parameter of the interfering device according to the interference indication information. By the signal adjusting mode, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Referring to fig. 6, which is a flowchart of a further signal adjustment method provided by the embodiment of the present application, the method may be implemented based on the architecture shown in fig. 2, the first exciter described below may be a first exciter in the system architecture shown in fig. 2, the second exciter described below may be a second exciter in the system architecture shown in fig. 2, and the first receiver described below may be a first receiver in the system architecture shown in fig. 2. In fig. 6, the interfering device is the second exciter. The method includes, but is not limited to, the following steps.

S601, when the first receiver detects that the first receiver is interfered by an interference signal, the first receiver determines the information of the interference signal. The execution manner of this step may refer to the execution manner of step S301, and is not described herein again.

S602, the first receiver sends interference indication information to the first exciter.

S603, after the first exciter receives the interference indication information sent by the first receiver, the first exciter sends a third adjustment instruction to the second exciter according to the identifier of the interfering device.

The third adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction. Wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

Optionally, the radio frequency identification system further includes a server, where the exciter communicates with the server, and a manner in which the first exciter sends the third adjustment instruction to the second exciter according to the identifier of the interfering device may be: and the first exciter sends second indication information to a server according to the identification of the interference equipment, wherein the second indication information is used for indicating the server to send a third adjustment instruction to the second exciter. The second indication information includes the third adjustment instruction.

And S604, the second exciter adjusts the time domain of the transmission signal to be a third time domain, or adjusts the frequency domain of the transmission signal to be a third frequency domain, or adjusts the power of the transmission signal to be a third power, or adjusts the beam direction of the transmission signal to be a first direction according to the third adjustment instruction.

In the method shown in fig. 6, in the case that the interference indication information also carries the identification of the interfering device generating the interfering signal, the first exciter may adjust the transmission configuration parameters of the interfering device according to the interference indication information. By the signal adjusting mode, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Referring to fig. 7, a flowchart of another signal adjustment method provided in the embodiment of the present application is shown. The method may be implemented based on the architecture shown in fig. 2, the first exciter described below may be a first exciter in the system architecture shown in fig. 2, the second exciter described below may be a second exciter in the system architecture shown in fig. 2, and the first receiver described below may be a first receiver in the system architecture shown in fig. 2. The method includes, but is not limited to, the following steps.

S701, when the first exciter judges that the first exciter is interfered by the interference signal of the second exciter, the first exciter determines the information of the interference signal.

Optionally, before step 701, the first exciter may also detect whether it is interfered by an interference signal. A method of the first exciter detecting whether it is interfered by an interference signal will be described below.

In the first method, the first exciter calculates a waveform of a received signal received by itself, and if the waveform of the received signal and a preset waveform do not satisfy a preset similarity condition, and the time domain of the received signal is within a preset time domain range, and the frequency domain of the received signal is within a preset frequency domain range, the first exciter determines that itself is interfered by an interference signal.

The preset waveform is generated according to a communication signal, the preset time domain range is a time domain range determined according to the time domain of the communication signal, and the preset time domain range is a time domain range determined according to the time domain of the communication signal; the communication signal is the communication signal sent by the receiver corresponding to the first exciter.

It should be noted that, if the waveform of the received signal and the preset waveform satisfy the preset similar condition, it indicates that the received signal is a communication signal; and if the waveform of the received signal and the preset waveform do not meet the preset similar condition, indicating that the received signal is not a communication signal. If the received signal is not a communication signal, the time domain of the received signal is in the preset time domain range, and the frequency domain of the received signal is in the preset frequency domain range, it indicates that the received signal affects the first exciter to receive the communication signal, and generates interference on the first exciter.

In a second method, the first exciter calculates the power of a received signal received by itself, and if the power of the received signal is greater than a preset value, and the time domain of the received signal is within a preset time domain range, and the frequency domain of the received signal is within a preset frequency domain range, the first receiver determines that the first receiver is interfered by an interference signal.

Wherein the preset value is a maximum power value of the communication signal determined according to the communication signal. The meaning of the communication signal, the predetermined time domain range and the predetermined frequency domain range is the same as that described above, and will not be described herein again.

It should be noted that, if the power of the received signal is greater than the preset value, it indicates that the received signal is not a communication signal, and the power of the received signal is too high, which may affect the communication signal. If the power of the received signal is greater than the preset value, the time domain of the received signal is in the preset time domain range, and the frequency domain of the received signal is in the preset frequency domain range, it indicates that the received signal affects the first exciter to receive the communication signal, and generates interference on the first exciter.

In a third method, the received signal carries an identifier of a device generating the received signal, and if the first exciter determines that the device generating the received signal is not a receiver corresponding to the first exciter, and the time domain of the received signal is in a preset time domain range and the frequency domain of the received signal is in a preset frequency domain range, the first exciter determines that the first exciter is interfered by an interference signal. The meaning of the preset time domain range and the preset frequency domain range is the same as that described above, and is not described herein again.

It should be noted that there may be other methods for the first exciter to detect whether it is interfered by the interference signal, and details thereof are not repeated herein. Optionally, two or three of the above-described methods may be combined to determine whether the first exciter is interfered by the interference signal.

S702, the first exciter adjusts the receiving configuration parameters of the first exciter according to the information of the interference signal; or, the interference signal also carries an identifier of a second exciter generating the interference signal, and the first exciter adjusts a transmission configuration parameter of the second exciter according to the information of the interference signal.

Wherein the receiving configuration parameters comprise one or more of time domain, frequency domain and power of the receiving signals, and the transmitting configuration parameters comprise one or more of beam direction, time domain, frequency domain and power of the transmitting signals.

In a first possible implementation manner, the information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal. The first exciter adjusts the receiving configuration parameters of the first exciter according to the information of the interference signal, and the receiving configuration parameters comprise: the first exciter adjusts the time domain of the self-sent signal to be a second time domain, or adjusts the frequency domain of the self-sent signal to be a second frequency domain, or adjusts the power of the self-sent signal to be a second power; the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

Optionally, the first exciter may further send a first adjustment instruction to a receiver corresponding to the first exciter, where the first adjustment instruction is used to instruct the first exciter to adjust a time domain of the received signal to be a second time domain, or instruct the first exciter to adjust a frequency domain of the received signal to be a second frequency domain, or instruct the first exciter to adjust the power of the received signal to be a second power.

In a second possible implementation manner, the information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal, the interference signal further carries an identifier of a second exciter that generates the interference signal, and a manner that the first exciter adjusts a transmission configuration parameter of the second exciter according to the information of the interference signal is as follows: the first exciter sends a second adjusting instruction to the second exciter according to the identifier of the second exciter, wherein the second adjusting instruction is used for instructing the second exciter to adjust the time domain of the sending signal to be a third time domain, or instructing the second exciter to adjust the frequency domain of the sending signal to be a third frequency domain, or instructing the second exciter to adjust the power of the sending signal to be a third power, or instructing the second exciter to adjust the beam direction of the sending signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

Optionally, the radio frequency identification system further includes a server, the exciters communicate with each other through the server, and the sending, by the first exciter, the second adjustment instruction to the second exciter according to the identifier of the second exciter may be: and the first exciter sends third indication information to a server according to the identification of the interference equipment, wherein the third indication information is used for indicating the server to send a second adjustment instruction to the second exciter. The third indication information includes the second adjustment instruction.

In the method shown in fig. 7, the first exciter may adjust its own receiving configuration parameters according to its determined information of the interfering signal, or in a case that the interfering signal also carries an identifier of a second exciter that generates the interfering signal, the first exciter may adjust its own transmitting configuration parameters according to the information of the interfering signal. By the signal adjusting mode, the influence of interference signals on communication signals received by the exciter can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Above, embodiments of the method of the present application are described, and below, corresponding embodiments of the apparatus are described.

Referring to fig. 8, a first exciter according to an embodiment of the present disclosure is applied to an rfid system, where the rfid system includes at least one exciter and one or more receivers corresponding to each exciter, the rfid system further includes at least one terminal device, the exciter is configured to transmit an rf excitation signal, the terminal device is configured to receive the rf excitation signal and backscatter the received rf excitation signal, the backscatter rf excitation signal carries target data of the terminal device, the receiver is configured to receive the rf excitation signal backscattered by the terminal device, and the receiver is further configured to transmit signals to the terminal device and/or to the corresponding exciter. The first exciter comprises a receiving unit 801 and an adjusting unit 802, which are described in detail below.

The receiving unit 801 is configured to receive interference indication information sent by the first receiver. The interference indication information is used for indicating that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter.

The adjusting unit 802 is configured to adjust the receiving configuration parameter of the first receiver according to the information of the interference signal. Wherein the receiving configuration parameters include one or more of time domain, frequency domain and power of the received signal.

Or, the interference indication information also carries an identifier of an interfering device that generates the interfering signal, and the adjusting unit 802 is configured to adjust the transmission configuration parameter of the interfering device according to the information of the interfering signal. Wherein the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain and a power of a transmission signal.

In a possible implementation manner, the information of the interference signal includes a first time domain, a first frequency domain, or a first power of the interference signal, and the adjusting unit 802 is specifically configured to: sending a first adjusting instruction to the first receiver, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power; and adjusting the time domain of a first radio frequency excitation signal to the second time domain, or adjusting the frequency domain of the first radio frequency excitation signal to the second frequency domain, or adjusting the power of the first radio frequency excitation signal to the second power, wherein the first radio frequency excitation signal is a radio frequency excitation signal sent by the first exciter to a terminal device under the first receiver.

In a possible implementation manner, the information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal, the interference indication information also carries an identifier of an interfering device of the interference signal, and the adjusting unit 802 is specifically configured to: sending a second adjusting instruction to the interfering device according to the identifier of the interfering device, where the second adjusting instruction is used to instruct the interfering device to adjust the time domain of the sent signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the sent signal to be a third frequency domain, or instruct the interfering device to adjust the power of the sent signal to be a third power; the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, and the third power is smaller than the first power.

In a possible implementation manner, the radio frequency identification system includes at least two exciters, the interfering device is a third receiver corresponding to a second exciter, the second exciter is different from the first exciter, and the adjusting unit 802 is specifically configured to: and sending first indication information to the second exciter according to the identification of the interference equipment, wherein the first indication information is used for indicating the second exciter to send the second adjusting instruction to the third receiver.

In a possible implementation manner, the radio frequency identification system includes at least two exciters, the interfering device is a second exciter, the second exciter is different from the first exciter, the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, the interference indication information also carries an identifier of the interfering device of the interfering signal, and the adjusting unit 802 is specifically configured to: sending a third adjusting instruction to the second exciter according to the identifier of the interfering device, where the third adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In addition, the implementation of each operation in fig. 8 may also correspond to the corresponding description of the method embodiment shown in fig. 3, 4, 5 or 6.

In the first exciter shown in fig. 8, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, or may adjust the sending configuration parameters of the interfering device according to the interference indication information in a case that the interference indication information also carries an identifier of the interfering device that generates the interfering signal. By the first exciter, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Referring to fig. 9, the first receiver provided in this embodiment of the present application is applied to an rfid system, where the rfid system includes at least one exciter, each exciter corresponds to one or more receivers, the rfid system further includes at least one terminal device, the exciter is configured to transmit an rf excitation signal, the terminal device is configured to receive the rf excitation signal and backscatter the received rf excitation signal, the backscatter rf excitation signal carries target data of the terminal device, the receiver is configured to receive the rf excitation signal backscattered by the terminal device, and the receiver is further configured to transmit signals to the terminal device and/or the corresponding exciter. The first receiver comprises a determining unit 901, a sending unit 902, a receiving unit 903, and an adjusting unit 904, which are further described below.

The determining unit 901 is configured to determine information of an interference signal when the first receiver detects that the first receiver is interfered by the interference signal. The information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal.

The sending unit 902 is configured to send interference indication information to a first exciter, where the interference indication information carries information of the interference signal, and the first exciter is an exciter corresponding to the first receiver.

The receiving unit 903 is configured to receive a first adjusting instruction sent by the exciter, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

The adjusting unit 904 is configured to adjust the time domain of the received signal to be a second time domain, or adjust the frequency domain of the received signal to be a second frequency domain, or adjust the power of the received signal to be a second power according to the first adjusting instruction.

In addition, the implementation of each operation in fig. 9 may also correspond to the corresponding description of the method embodiment shown in fig. 4.

In the first receiver shown in fig. 9, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, and with such a first receiver, the influence of the interfering signal on the radio frequency interfering signal backscattered by the terminal device and received by the receiver can be reduced, and signal interference in the radio frequency identification system can be reduced.

Referring to fig. 10, a first exciter according to an embodiment of the present application is applied to a radio frequency identification system, where the radio frequency identification system includes at least two exciters, each exciter corresponds to one or more receivers, the radio frequency identification system further includes at least one terminal device, the exciter is configured to transmit a radio frequency excitation signal, the terminal device is configured to receive the radio frequency excitation signal and backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carries target data of the terminal device, the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, and the receiver is configured to transmit a signal to the terminal device and/or the corresponding exciter. The first actuator comprises a determining unit 1001 and an adjusting unit 1002, which are further described below.

The determination unit 1001 is configured to determine information of an interference signal of the second exciter when the first exciter determines that the first exciter is interfered by the interference signal.

The adjusting unit 1002 is configured to adjust a receiving configuration parameter of the mobile terminal according to the information of the interference signal. Wherein the receiving configuration parameters include one or more of time domain, frequency domain and power of the received signal. Or, the interference signal further carries an identifier of a second exciter that generates the interference signal, and the adjusting unit 1002 is configured to adjust a transmission configuration parameter of the second exciter according to the information of the interference signal. Wherein the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain and a power of a transmission signal.

In a possible implementation manner, the information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal; the adjusting unit 1002 is specifically configured to: adjusting the time domain of the self-sent signal to be a second time domain, or adjusting the frequency domain of the self-sent signal to be a second frequency domain, or adjusting the power of the self-sent signal to be a second power; the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

In one possible implementation, the first exciter further comprises a transmitting unit: the sending unit is configured to send a first adjustment instruction to a receiver corresponding to the first exciter, where the first adjustment instruction is used to instruct the first exciter to adjust a time domain of a received signal to be a second time domain, or instruct the first exciter to adjust a frequency domain of the received signal to be a second frequency domain, or instruct the first exciter to adjust power of the received signal to be second power.

In a possible implementation manner, the information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal, and the interference signal further carries an identifier of a second exciter that generates the interference signal, and the adjusting unit 1002 is specifically configured to: sending a second adjusting instruction to the second exciter according to the identifier of the second exciter, where the second adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In addition, the implementation of each operation in fig. 10 may also correspond to the corresponding description of the method embodiment shown in fig. 7.

In the first exciter shown in fig. 10, the first exciter may adjust its own receiving configuration parameters according to its own determined information of the interference signal, or may adjust its own transmitting configuration parameters according to the information of the interference signal in the case that the interference signal also carries an identifier of a second exciter that generates the interference signal. By means of the first exciter, the influence of interference signals on communication signals received by the exciter can be reduced, and signal interference in a radio frequency identification system can be reduced.

Referring to fig. 11, a first exciter according to an embodiment of the present disclosure is applied to a radio frequency identification system, where the radio frequency identification system includes at least one exciter, each exciter corresponds to one or more receivers, the radio frequency identification system further includes at least one terminal device, the exciter is configured to transmit a radio frequency excitation signal, the terminal device is configured to receive the radio frequency excitation signal and backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carries target data of the terminal device, the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, and the receiver is further configured to transmit a signal to the terminal device and/or to the corresponding exciter.

The first actuator comprises a processor 1101, a memory 1102 and a communication interface 1103, the processor 1101, the memory 1102 and the communication interface 1103 being interconnected by a bus 1104.

The memory 1102 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 1102 is used for related instructions and data.

The processor 1101 may be one or more Central Processing Units (CPUs), and in the case where the processor 1101 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1101 in the first actuator 110 is configured to read the program code stored in the memory 1102 and perform the following operations:

the interference indication information sent by the first receiver is received through the communication interface 1103. The interference indication information is used for indicating that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter.

And adjusting the receiving configuration parameters of the first receiver according to the information of the interference signal. Wherein the receiving configuration parameters include one or more of time domain, frequency domain and power of the received signal.

Or, the interference indication information also carries an identifier of an interfering device generating the interfering signal, and the sending configuration parameter of the interfering device is adjusted according to the information of the interfering signal. Wherein the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain and a power of a transmission signal.

In a possible implementation manner, the information of the interfering signal includes a first time domain, or a first frequency domain, or a first power of the interfering signal, and the processor 1101 is further configured to: sending a first adjusting instruction to the first receiver, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power; and adjusting the time domain of a first radio frequency excitation signal to the second time domain, or adjusting the frequency domain of the first radio frequency excitation signal to the second frequency domain, or adjusting the power of the first radio frequency excitation signal to the second power, wherein the first radio frequency excitation signal is a radio frequency excitation signal sent by the first exciter to a terminal device under the first receiver.

In a possible implementation manner, the information of the interfering signal includes a first time domain, or a first frequency domain, or a first power of the interfering signal, the interference indication information further carries an identification of an interfering device of the interfering signal, and the processor 1101 is further configured to: sending a second adjusting instruction to the interfering device according to the identifier of the interfering device, where the second adjusting instruction is used to instruct the interfering device to adjust the time domain of the sent signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the sent signal to be a third frequency domain, or instruct the interfering device to adjust the power of the sent signal to be a third power; the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, and the third power is smaller than the first power.

In one possible implementation, the rfid system includes at least two exciters, the interfering device is a third receiver corresponding to a second exciter, the second exciter is different from the first exciter, and the processor 1101 is further configured to: and sending first indication information to the second exciter according to the identification of the interference equipment, wherein the first indication information is used for indicating the second exciter to send the second adjusting instruction to the third receiver.

In a possible implementation manner, the radio frequency identification system includes at least two exciters, the interfering device is a second exciter, the second exciter is different from the first exciter, the information of the interfering signal includes a first time domain, or a first frequency domain, or a first power of the interfering signal, the interference indication information also carries an identifier of the interfering device of the interfering signal, and the processor 1101 is further configured to: the device sends a third adjusting instruction to the second exciter according to the identifier of the interfering device, where the third adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In addition, the implementation of the operations in fig. 11 may also correspond to the corresponding description of the method embodiments shown in fig. 3, fig. 4, fig. 5, or fig. 6.

In the first exciter shown in fig. 11, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, or in a case that the interference indication information also carries an identifier of an interfering device generating the interfering signal, the first exciter may adjust the sending configuration parameters of the interfering device according to the interference indication information. By the signal adjusting mode, the influence of interference signals on radio frequency interference signals which are received by the receiver and are backscattered by the terminal equipment can be reduced, and the signal interference in the radio frequency identification system can be reduced.

Referring to fig. 12, the first receiver provided in this embodiment of the present application is applied to an rfid system, where the rfid system includes at least one exciter, each exciter corresponds to one or more receivers, the rfid system further includes at least one terminal device, the exciter is configured to transmit an rf excitation signal, the terminal device is configured to receive the rf excitation signal and backscatter the received rf excitation signal, the backscatter rf excitation signal carries target data of the terminal device, the receiver is configured to receive the rf excitation signal backscattered by the terminal device, and the receiver is further configured to transmit signals to the terminal device and/or to the corresponding exciter.

The first actuator comprises a processor 1201, a memory 1202 and a communication interface 1203, the processor 1201, the memory 1202 and the communication interface 1203 being interconnected by a bus 1204.

The memory 1202 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 1202 is used for related instructions and data.

The processor 1201 may be one or more Central Processing Units (CPUs), and in the case that the processor 1201 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1201 in the first actuator 120 is configured to read the program code stored in the memory 1202 and perform the following operations:

when the interference of the interference signal on the self is detected, the information of the interference signal is determined.

Interference indication information is sent to the first exciter. The interference indication information carries information of the interference signal, and the first exciter is an exciter corresponding to the first receiver. The information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal.

And receiving a first adjusting instruction sent by the first exciter. The first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust a power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

And adjusting the time domain of the received signal to be a second time domain, or adjusting the frequency domain of the received signal to be a second frequency domain, or adjusting the power of the received signal to be a second power according to the first adjusting instruction.

In addition, the implementation of each operation in fig. 12 may also correspond to the corresponding description of the method embodiment shown in fig. 4.

In the first receiver shown in fig. 12, the first exciter may adjust the receiving configuration parameters of the first receiver according to the interference indication information sent by the first receiver, and by this signal adjustment, the influence of the interfering signal on the radio frequency interfering signal backscattered by the terminal device and received by the receiver can be reduced, and signal interference in the radio frequency identification system can be reduced.

Referring to fig. 13, a first exciter according to an embodiment of the present application is applied to a radio frequency identification system, where the radio frequency identification system includes at least one exciter, each exciter corresponds to one or more receivers, the radio frequency identification system further includes at least one terminal device, the exciter is configured to transmit a radio frequency excitation signal, the terminal device is configured to receive the radio frequency excitation signal and backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carries target data of the terminal device, the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, and the receiver is further configured to transmit a signal to the terminal device and/or to the corresponding exciter.

The first exciter includes a processor 1301, a memory 1302, and a communication interface 1303, and the processor 1301, the memory 1302, and the communication interface 1303 are connected to each other by a bus 1304.

The memory 1302 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 1302 is used for related instructions and data.

The processor 1301 may be one or more Central Processing Units (CPUs), and in the case that the processor 1301 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1301 of the first actuator 130 is configured to read the program code stored in the memory 1302, and perform the following operations:

when it is determined that the first exciter is interfered by the interference signal of the second exciter, the first exciter determines information of the interference signal.

And adjusting the receiving configuration parameters of the mobile terminal according to the information of the interference signal. Wherein the receiving configuration parameters include one or more of time domain, frequency domain and power of the received signal.

Or, the interference signal also carries an identifier of a second exciter generating the interference signal, and the transmission configuration parameter of the second exciter is adjusted according to the information of the interference signal. Wherein the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain and a power of a transmission signal.

In a possible implementation manner, the information of the interference signal includes a first time domain, or a first frequency domain, or a first power of the interference signal; the processor 1301 is specifically configured to: adjusting the time domain of the self-sent signal to be a second time domain, or adjusting the frequency domain of the self-sent signal to be a second frequency domain, or adjusting the power of the self-sent signal to be a second power; the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

In one possible implementation, the processor 1301 is further configured to: and a first adjusting instruction is sent to a receiver corresponding to the first exciter, and the first adjusting instruction is used for instructing the first exciter to adjust the time domain of the received signal to be a second time domain, or instructing the first exciter to adjust the frequency domain of the received signal to be a second frequency domain, or instructing the first exciter to adjust the power of the received signal to be a second power.

In a possible implementation manner, the information of the interference signal includes a first time domain, a first frequency domain, or a first power of the interference signal, and the interference signal further carries an identifier of a second exciter that generates the interference signal, and the processor 1301 is specifically configured to: sending a second adjusting instruction to the second exciter according to the identifier of the second exciter, where the second adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction; wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

In addition, the implementation of each operation in fig. 13 may also correspond to the corresponding description of the method embodiment shown in fig. 7.

In the first exciter shown in fig. 13, the first exciter may adjust its own receiving configuration parameters according to its determined information of the interference signal, or in a case that the interference signal also carries an identifier of a second exciter that generates the interference signal, the first exciter may adjust its own transmitting configuration parameters according to the information of the interference signal. By the signal adjusting mode, the influence of interference signals on communication signals received by the exciter can be reduced, and the signal interference in the radio frequency identification system can be reduced.

In another embodiment of the present application, there is provided a radio frequency identification system comprising a first exciter and a first receiver, wherein the first exciter is the first exciter of fig. 3, 4, 5, 6 or 7 described above, or the first exciter of fig. 8, 10, 11 or 13. The first receiver is the first receiver in fig. 3, fig. 4, fig. 5, fig. 6 or fig. 7, or the first receiver shown in fig. 9 or fig. 12.

In another embodiment of the present application, a computer program product is provided, the method of the embodiments shown in fig. 3, 4, 5, 6 or 7 being implemented when the computer program product is run on a computer.

In another embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program that, when executed by a computer, implements the method of the embodiment shown in fig. 3, 4, 5, 6 or 7.

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A signal conditioning method, applied to a radio frequency identification system, the radio frequency identification system including at least one exciter and one or more receivers corresponding to each exciter, the radio frequency identification system further including at least one terminal device, the exciter being configured to transmit a radio frequency excitation signal, the terminal device being configured to receive the radio frequency excitation signal and to backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carrying target data of the terminal device, the receiver being configured to receive the radio frequency excitation signal backscattered by the terminal device, the receiver being further configured to transmit a signal to the terminal device and/or to the corresponding exciter, the method comprising:

a first exciter receives interference indication information sent by a first receiver, wherein the interference indication information is used for indicating that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter;

the first exciter adjusts receiving configuration parameters of the first receiver according to the information of the interference signal, wherein the receiving configuration parameters comprise one or more of time domain, frequency domain and power of a received signal; or, the interference indication information further carries an identifier of an interfering device that generates the interfering signal, and the first exciter adjusts a transmission configuration parameter of the interfering device according to the information of the interfering signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of a transmission signal.

2. The method of claim 1, wherein the information of the interfering signal comprises a first time domain, a first frequency domain, or a first power of the interfering signal, and wherein the first exciter adjusts the receiving configuration parameters of the first receiver according to the information of the interfering signal, comprising:

the first exciter sends a first adjusting instruction to the first receiver, wherein the first adjusting instruction is used for instructing the first receiver to adjust the time domain of the received signal to be a second time domain, or instructing the first receiver to adjust the frequency domain of the received signal to be a second frequency domain, or instructing the first receiver to adjust the power of the received signal to be a second power, the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is larger than the first power;

the first exciter adjusts a time domain of a first radio frequency excitation signal to the second time domain, or adjusts a frequency domain of the first radio frequency excitation signal to the second frequency domain, or adjusts a power of the first radio frequency excitation signal to the second power, where the first radio frequency excitation signal is a radio frequency excitation signal sent by the first exciter to a terminal device under the first receiver.

3. The method of claim 1, wherein the information of the interfering signal comprises a first time domain, or a first frequency domain, or a first power of the interfering signal, wherein the interference indication information further carries an identification of an interfering device of the interfering signal, and wherein the first exciter adjusts a transmission configuration parameter of the interfering device according to the information of the interfering signal, comprising:

the first exciter sends a second adjusting instruction to the interfering device according to the identifier of the interfering device, where the second adjusting instruction is used to instruct the interfering device to adjust the time domain of the sent signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the sent signal to be a third frequency domain, or instruct the interfering device to adjust the power of the sent signal to be a third power;

wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, and the third power is less than the first power.

4. The method of claim 3, wherein the interfering device is a second receiver corresponding to the first exciter.

5. The method of claim 3, wherein the radio frequency identification system comprises at least two exciters, wherein the interfering device is a third receiver corresponding to a second exciter, wherein the second exciter is different from the first exciter, and wherein the first exciter sends a second adjustment instruction to the interfering device based on the identity of the interfering device, the method comprising:

and the exciter sends first indication information to the second exciter according to the identification of the interference equipment, wherein the first indication information is used for indicating the second exciter to send the second adjusting instruction to the third receiver.

6. The method of claim 1, wherein the radio frequency identification system comprises at least two exciters, the interfering device is a second exciter, the second exciter is different from the first exciter, the information of the interfering signal comprises a first time domain, or a first frequency domain, or a first power of the interfering signal, the interference indication information further carries an identification of the interfering device of the interfering signal, and the first exciter adjusts the transmission configuration parameters of the interfering device according to the information of the interfering signal, comprising:

the first exciter sends a third adjusting instruction to the second exciter according to the identifier of the interfering device, where the third adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction;

wherein the third time domain is different from the first time domain, the third frequency domain is different from the first frequency domain, the third power is less than the first power, and the first direction is different from a direction of the first exciter relative to the second exciter.

7. A signal conditioning method, applied to a radio frequency identification system, the radio frequency identification system including at least one exciter and one or more receivers corresponding to each exciter, the radio frequency identification system further including at least one terminal device, the exciter being configured to transmit a radio frequency excitation signal, the terminal device being configured to receive the radio frequency excitation signal and to backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carrying target data of the terminal device, the receiver being configured to receive the radio frequency excitation signal backscattered by the terminal device, the receiver being further configured to transmit a signal to the terminal device and/or the corresponding exciter, the method comprising:

when a first receiver detects that the first receiver is interfered by an interference signal, the first receiver determines information of the interference signal; the information of the interference signal comprises a first time domain, a first frequency domain or a first power of the interference signal;

the first receiver sends interference indication information to a first exciter, the interference indication information carries information of the interference signal, and the first exciter is an exciter corresponding to the first receiver;

the first receiver receives a first adjusting instruction sent by a first exciter, wherein the first adjusting instruction is used for instructing the first receiver to adjust a time domain of a received signal to be a second time domain, or instructing the first receiver to adjust a frequency domain of the received signal to be a second frequency domain, or instructing the first receiver to adjust power of the received signal to be second power, the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is larger than the first power;

and the first receiver adjusts the time domain of the received signal to be a second time domain according to the first adjusting instruction, or adjusts the frequency domain of the received signal to be a second frequency domain, or adjusts the power of the received signal to be a second power.

8. A method of signal conditioning, applied to an rfid system including at least two exciters, each exciter corresponding to one or more receivers, the rfid system further including at least one terminal device, the exciter being configured to transmit an rf excitation signal, the terminal device being configured to receive the rf excitation signal and to backscatter the received rf excitation signal, the backscatter rf excitation signal carrying target data for the terminal device, the receiver being configured to receive the rf excitation signal backscattered by the terminal device, the receiver being further configured to transmit signals to the terminal device and/or the corresponding exciter, the method comprising:

when a first exciter judges that the first exciter is interfered by an interference signal of a second exciter, the first exciter determines information of the interference signal;

the first exciter adjusts the receiving configuration parameters of the first exciter according to the information of the interference signal, wherein the receiving configuration parameters comprise one or more of time domain, frequency domain and power of the received signal; or, the interference signal further carries an identifier of a second exciter generating the interference signal, and the first exciter adjusts a transmission configuration parameter of the second exciter according to the information of the interference signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of a transmission signal.

9. The method of claim 8, wherein the information of the interference signal comprises a first time domain, a first frequency domain, or a first power of the interference signal; the first exciter adjusts the receiving configuration parameters of the first exciter according to the information of the interference signal, and the receiving configuration parameters comprise:

the first exciter adjusts the time domain of the self-sent signal to be a second time domain, or adjusts the frequency domain of the self-sent signal to be a second frequency domain, or adjusts the power of the self-sent signal to be a second power;

wherein the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power.

10. The method of claim 9, further comprising:

and a first adjusting instruction sent by the first exciter to a receiver corresponding to the first exciter, where the first adjusting instruction is used to instruct the first exciter to adjust a time domain of a received signal to be a second time domain, or instruct the first exciter to adjust a frequency domain of the received signal to be a second frequency domain, or instruct the first exciter to adjust power of the received signal to be second power.

11. The method of claim 8, wherein the information of the interfering signal comprises a first time domain, a first frequency domain, or a first power of the interfering signal, and the interfering signal further carries an identifier of a second exciter that generates the interfering signal, and the first exciter adjusts a transmission configuration parameter of the second exciter according to the information of the interfering signal, including:

the first exciter sends a second adjusting instruction to the second exciter according to the identifier of the second exciter, where the second adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction;

12. A first exciter, for use in a radio frequency identification system comprising at least one exciter and one or more receivers per exciter, wherein the exciter is configured to transmit a radio frequency excitation signal, and wherein the terminal device is configured to receive the radio frequency excitation signal and to backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carrying target data for the terminal device, and wherein the receiver is configured to receive the radio frequency excitation signal backscattered by the terminal device, and wherein the receiver is configured to transmit a signal to the terminal device and/or to the corresponding exciter, the first exciter comprising a receiving unit and an adjusting unit:

the receiving unit is configured to receive interference indication information sent by a first receiver, where the interference indication information is used to indicate that the first receiver is interfered by an interference signal, the interference indication information carries information of the interference signal, and the first receiver is a receiver corresponding to the first exciter;

the adjusting unit is configured to adjust a receiving configuration parameter of the first receiver according to the information of the interference signal, where the receiving configuration parameter includes one or more of a time domain, a frequency domain, and a power of a received signal; or, the interference indication information further carries an identifier of an interfering device that generates the interfering signal, and the adjusting unit is configured to adjust a transmission configuration parameter of the interfering device according to the information of the interfering signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of a transmission signal.

13. The first exciter of claim 12, wherein the information of the interfering signal comprises a first time domain, or a first frequency domain, or a first power of the interfering signal, and the adjusting unit is specifically configured to:

sending a first adjusting instruction to the first receiver, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power;

adjusting a time domain of a first radio frequency excitation signal to a second time domain, or adjusting a frequency domain of the first radio frequency excitation signal to a second frequency domain, or adjusting a power of the first radio frequency excitation signal to a second power, where the first radio frequency excitation signal is a radio frequency excitation signal sent by the first exciter to a terminal device under the first receiver.

14. The first exciter of claim 12, wherein the information of the interfering signal comprises a first time domain, or a first frequency domain, or a first power of the interfering signal, and the interference indication information further carries an identification of an interfering device of the interfering signal, and the adjusting unit is specifically configured to:

sending a second adjusting instruction to the interfering device according to the identifier of the interfering device, where the second adjusting instruction is used to instruct the interfering device to adjust the time domain of the sent signal to be a third time domain, or instruct the interfering device to adjust the frequency domain of the sent signal to be a third frequency domain, or instruct the interfering device to adjust the power of the sent signal to be a third power;

15. The first exciter of claim 14, wherein the interfering device is a second receiver to which the first exciter corresponds.

16. The first exciter of claim 14, wherein the rfid system comprises at least two exciters, wherein the interfering device is a third receiver corresponding to a second exciter different from the first exciter, and wherein the adjustment unit is specifically configured to:

and sending first indication information to the second exciter according to the identification of the interference equipment, wherein the first indication information is used for indicating the second exciter to send the second adjusting instruction to the third receiver.

17. The first exciter of claim 12, wherein the radio frequency identification system comprises at least two exciters, the interfering device is a second exciter, the second exciter is different from the first exciter, the information of the interfering signal comprises a first time domain, or a first frequency domain, or a first power of the interfering signal, the interference indication information further carries an identification of the interfering device of the interfering signal, and the adjusting unit is specifically configured to:

sending a third adjusting instruction to the second exciter according to the identifier of the interfering device, where the third adjusting instruction is used to instruct the second exciter to adjust a time domain of a transmission signal to be a third time domain, or instruct the second exciter to adjust a frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust a power of the transmission signal to be a third power, or instruct the second exciter to adjust a beam direction of the transmission signal to be a first direction;

18. A first receiver, applied to a radio frequency identification system, the radio frequency identification system including at least one exciter, each exciter corresponding to one or more receivers, the radio frequency identification system further including at least one terminal device, the exciter being configured to transmit a radio frequency excitation signal, the terminal device being configured to receive the radio frequency excitation signal and to backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carrying target data of the terminal device, the receiver being configured to receive the radio frequency excitation signal backscattered by the terminal device, the receiver being further configured to transmit a signal to the terminal device and/or the corresponding exciter, the first receiver including a determining unit, a transmitting unit, a receiving unit, an adjusting unit:

the determining unit is used for determining the information of the interference signal when the first receiver detects that the first receiver is interfered by the interference signal; the information of the interference signal comprises a first time domain, a first frequency domain or a first power of the interference signal;

the sending unit is configured to send interference indication information to a first exciter, where the interference indication information carries information of the interference signal, and the first exciter is an exciter corresponding to the first receiver;

the receiving unit is configured to receive a first adjusting instruction sent by the exciter, where the first adjusting instruction is used to instruct the first receiver to adjust a time domain of a received signal to a second time domain, or instruct the first receiver to adjust a frequency domain of the received signal to a second frequency domain, or instruct the first receiver to adjust a power of the received signal to a second power, where the second time domain is different from the first time domain, the second frequency domain is different from the first frequency domain, and the second power is greater than the first power;

and the adjusting unit is used for adjusting the time domain of the received signal to be a second time domain, or adjusting the frequency domain of the received signal to be a second frequency domain, or adjusting the power of the received signal to be a second power according to the first adjusting instruction.

19. A first exciter, for application in a radio frequency identification system, the radio frequency identification system comprising at least two exciters, each exciter corresponding to one or more receivers, the radio frequency identification system further comprising at least one terminal device, the exciter being configured to transmit a radio frequency excitation signal, the terminal device being configured to receive the radio frequency excitation signal and to backscatter the received radio frequency excitation signal, the backscatter radio frequency excitation signal carrying target data for the terminal device, the receiver being configured to receive the radio frequency excitation signal backscattered by the terminal device, the receiver being further configured to transmit a signal to the terminal device and/or the corresponding exciter, the first exciter comprising a determining unit and an adjusting unit:

the determination unit is used for determining the information of the interference signal when the first exciter determines that the first exciter is interfered by the interference signal of the second exciter; the adjusting unit is configured to adjust a receiving configuration parameter of the adjusting unit according to the information of the interference signal, where the receiving configuration parameter includes one or more of a time domain, a frequency domain, and a power of a received signal; or, the interference signal further carries an identifier of a second exciter generating the interference signal, and the adjusting unit is configured to adjust a transmission configuration parameter of the second exciter according to information of the interference signal, where the transmission configuration parameter includes one or more of a beam direction, a time domain, a frequency domain, and a power of a transmission signal.

20. The first exciter of claim 19, wherein the information of the interfering signal comprises a first time domain, or a first frequency domain, or a first power of the interfering signal; the adjusting unit is specifically configured to:

adjusting the time domain of the self-sent signal to be a second time domain, or adjusting the frequency domain of the self-sent signal to be a second frequency domain, or adjusting the power of the self-sent signal to be a second power;

21. The first actuator of claim 20, further comprising a transmitting unit:

the sending unit is configured to send a first adjustment instruction to a receiver corresponding to the first exciter, where the first adjustment instruction is used to instruct the first exciter to adjust a time domain of a received signal to be a second time domain, or instruct the first exciter to adjust a frequency domain of the received signal to be a second frequency domain, or instruct the first exciter to adjust power of the received signal to be second power.

22. The first exciter of claim 19, wherein the information of the interfering signal includes a first time domain, a first frequency domain, or a first power of the interfering signal, and the interfering signal further carries an identifier of a second exciter that generates the interfering signal, and the adjusting unit is specifically configured to:

sending a second adjusting instruction to the second exciter according to the identifier of the second exciter, where the second adjusting instruction is used to instruct the second exciter to adjust the time domain of the transmission signal to be a third time domain, or instruct the second exciter to adjust the frequency domain of the transmission signal to be a third frequency domain, or instruct the second exciter to adjust the power of the transmission signal to be a third power, or instruct the second exciter to adjust the beam direction of the transmission signal to be a first direction;

23. A first actuator comprising a processor and a memory, wherein the memory is configured to store program instructions and the processor is configured to invoke the program instructions to perform the method of any of claims 1 to 6.

24. A first receiver comprising a processor and a memory, wherein the memory is configured to store program instructions and the processor is configured to invoke the program instructions to perform the method of claim 7.

25. A first actuator comprising a processor and a memory, wherein the memory is configured to store program instructions and the processor is configured to invoke the program instructions to perform the method of any of claims 8 to 11.

26. A radio frequency identification system comprising an exciter and a receiver, wherein the exciter is the first exciter of any one of claims 12 to 17, 19 to 22, 23, 25 and the receiver is the first receiver of claim 18 or 24.