CN221043016U - Interactive flat panel display equipment and on-off detection circuit thereof - Google Patents
Interactive flat panel display equipment and on-off detection circuit thereof Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 54
- 230000002452 interceptive effect Effects 0.000 title claims abstract description 53
- 238000012545 processing Methods 0.000 claims abstract description 101
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 25
- 239000010703 silicon Substances 0.000 claims abstract description 25
- 229920000260 silastic Polymers 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 20
- 239000011324 bead Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 description 14
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- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The utility model discloses an interactive flat panel display device and a startup and shutdown detection circuit thereof, and relates to the technical field of startup electronic circuits. The on-off detection circuit comprises: the system comprises a silicon microphone unit, a processing unit and a startup and shutdown circuit, wherein: the silicon microphone unit is electrically connected with the processing unit and is used for collecting a first switching on/off voice signal, performing digital processing to form a second switching on/off voice signal and transmitting the second switching on/off voice signal to the processing unit; the processing unit is electrically connected with the switching on/off circuit and is used for recognizing the second switching on/off voice signal and sending a switching on/off control signal to the switching on/off circuit according to the recognition result; the on-off circuit is used for realizing the on-off of the mutual flat panel display device according to the on-off control signal. Therefore, the voice on-off signal can be detected, the on-off of the voice control interactive flat panel display device is realized, the on-off key is not required to be manually operated by a user, the operation of the user is convenient, and the user experience is improved.
Description
[ Field of technology ]
The utility model relates to the technical field of electronic circuits, in particular to an interactive flat panel display device and a startup and shutdown detection circuit thereof.
[ Background Art ]
With the development and progress of technology, the devices of the interactive flat panel display (INTERACTIVE FLAT PANEL DISPLAYS, IFPD) are endless. At present, a key switch mode is adopted for switching on and switching off the common mutual flat panel display equipment, and a user is required to manually press a switch key to realize switching on and switching off of the mutual flat panel display equipment in the key switch mode. The key switch-on and switch-off mode requires a user to manually operate the switch-on and switch-off key, the device switch-on and switch-off intelligence is not strong, and if the installation position of the interactive flat panel display device is higher, the user cannot conveniently operate the switch-on and switch-off key, and the user experience is poor.
[ utility model ]
The embodiment of the utility model aims to provide an interactive flat panel display device and a switching on/off detection circuit thereof, and aims to solve the problems that the switching on/off of the traditional interactive flat panel display device requires manual operation of switching on/off keys by a user, is inconvenient for the user to operate and has poor user experience.
To solve the above technical problem, an embodiment of a first aspect of the present utility model provides a power on/off detection circuit, which is applied to an interactive flat panel display device, including: the system comprises a silicon microphone unit, a processing unit and a startup and shutdown circuit, wherein:
The silicon microphone unit is electrically connected with the processing unit and is used for collecting a first switching on/off voice signal, performing digital processing to form a second switching on/off voice signal and transmitting the second switching on/off voice signal to the processing unit;
The processing unit is electrically connected with the switching circuit and is used for recognizing the second switching circuit voice signal and sending a switching control signal to the switching circuit according to the recognition result;
The on-off circuit is used for realizing on-off of the interactive flat panel display device according to the on-off control signal.
Optionally, the silastic unit comprises a sensor, a processing module, a clock pin, a data pin and a microphone selection pin;
The sensor is electrically connected with the processing module and is used for collecting a first on-off voice signal;
the processing module is used for performing digital processing on the first switching on/off voice signal to form a second switching on/off voice signal.
Optionally, the on-off detection circuit further includes a first filtering unit, where the first filtering unit is electrically connected to the data pin of the simian unit and the processing unit respectively.
Optionally, the first filtering unit includes a first capacitor and a magnetic bead, a first end of the magnetic bead is electrically connected with the data pin of the silastic unit, a second end of the magnetic bead is electrically connected with the processing unit, the first end of the first capacitor is electrically connected with the first end of the magnetic bead and then connected to the data pin of the silastic unit, and a second end of the first capacitor is grounded.
Optionally, the on-off detection circuit further includes a second filtering unit, where the second filtering unit is electrically connected to the clock pin of the simi unit and the processing unit respectively.
Optionally, the second filter unit includes a second capacitor and a second resistor, a first end of the second resistor is electrically connected with the clock pin of the silastic unit, a second end of the second resistor is electrically connected with the processing unit, the first end of the second capacitor is electrically connected with the first end of the second resistor and then connected to the clock pin of the silastic unit, and a second end of the second capacitor is grounded.
Optionally, the on-off detection circuit further includes a first resistor, a first end of the first resistor is electrically connected with the microphone selection pin of the simian unit, and a second end of the first resistor is grounded.
Optionally, the on-off detection circuit further includes an on-off button, where the on-off button is electrically connected with the processing unit and the on-off circuit respectively, and is used for being pressed by a user to realize manual on-off of the interactive flat panel display device.
Optionally, the processing unit comprises a system on a chip, a micro control unit or a central processor.
Accordingly, embodiments of the second aspect of the present utility model provide an interactive flat panel display device, which includes the on-off detection circuit according to the embodiments of the first aspect of the present utility model.
Compared with the prior art, the embodiment of the utility model provides the interactive flat panel display device and the on-off detection circuit thereof, wherein the on-off detection circuit is applied to the interactive flat panel display device and comprises a silicon microphone unit, a processing unit and an on-off circuit, and the on-off detection circuit comprises the following components: the silicon microphone unit is electrically connected with the processing unit, acquires a first switching on/off voice signal, performs digital processing to form a second switching on/off voice signal, and transmits the second switching on/off voice signal to the processing unit; the processing unit is electrically connected with the switching circuit, recognizes the second switching circuit voice signal, and sends a switching circuit control signal to the switching circuit according to the recognition result; the on-off circuit realizes the on-off of the mutual flat panel display device according to the on-off control signal. Therefore, the voice on-off signal can be detected, the on-off of the voice control interactive flat panel display device is realized, the on-off key is not required to be manually operated by a user, the operation of the user is convenient, and the user experience is improved. The method can solve the problems that the switching on and shutting down of the traditional interactive flat panel display device requires manual operation of switching on and shutting down keys by a user, is inconvenient for the user to operate and has poor user experience.
[ Description of the drawings ]
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a schematic diagram of a power on/off detection circuit according to the present utility model;
Fig. 2 is a schematic structural diagram of a silicon microphone unit in the on-off detection circuit provided by the utility model;
fig. 3 is a schematic circuit diagram of an on/off detection circuit provided by the utility model;
fig. 4 is a schematic circuit diagram of a switching on/off detection circuit according to the present utility model when a silastic unit outputs a plurality of data;
fig. 5 is a schematic structural diagram of an interactive flat panel display device according to the present utility model.
Description of main reference numerals:
silicon microphone unit 11 of on-off detection circuit 1
The processing unit 12 is turned on and off 13
Sensor 111 processing module 112
Power supply pin VDD clock pin CLK
DATA pin DATA microphone select pin L/R
First filter unit 14 second filter unit 15
First resistor R1 and second resistor R2
First capacitor C1 and second capacitor C2
Magnetic bead 141 switch key 16
Interactive flat panel display device 100
[ Detailed description ] of the invention
In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "electrically connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.
In one embodiment, as shown in fig. 1, the present utility model provides a power on/off detection circuit 1 applied to an interactive flat panel display device, comprising: a silicon microphone unit 11, a processing unit 12 and a switching circuit 13, wherein:
The silicon microphone unit 11 is electrically connected with the processing unit 12, and is used for collecting a first switching on/off voice signal, performing digital processing to form a second switching on/off voice signal, and transmitting the second switching on/off voice signal to the processing unit 12;
The processing unit 12 is electrically connected with the on-off circuit 13, and is used for recognizing the second on-off voice signal and sending an on-off control signal to the on-off circuit 13 according to the recognition result;
The on-off circuit 13 is used for implementing on-off of the interactive flat panel display device according to the on-off control signal.
In this embodiment, by providing a power on/off detection circuit, the power on/off detection circuit is applied to an interactive flat panel display device, and includes a silicon microphone unit, a processing unit and a power on/off circuit, wherein: the silicon microphone unit is electrically connected with the processing unit, acquires a first switching on/off voice signal, performs digital processing to form a second switching on/off voice signal, and transmits the second switching on/off voice signal to the processing unit; the processing unit is electrically connected with the switching circuit, and sends a switching control signal to the switching circuit according to the second switching voice signal and the identification result; the on-off circuit realizes the on-off of the mutual flat panel display device according to the on-off control signal. Therefore, the voice on-off signal can be detected, the on-off of the voice control interactive flat panel display device is realized, the on-off key is not required to be manually operated by a user, the operation of the user is convenient, and the user experience is improved. The method can solve the problems that the switching on and shutting down of the traditional interactive flat panel display device requires manual operation of switching on and shutting down keys by a user, is inconvenient for the user to operate and has poor user experience.
In one embodiment, the silastic unit 11 is electrically connected to the processing unit 12, and is configured to collect a first on-off voice signal, perform digital processing to form a second on-off voice signal, and transmit the second on-off voice signal to the processing unit 12.
Specifically, as shown in fig. 2, the silicon microphone unit 11 includes a sensor 111, a processing module 112, a power supply pin VDD, a clock pin CLK, a DATA pin DATA, and a microphone selection pin L/R.
The sensor 111 is electrically connected to the processing module 112, and is configured to collect a first on-off voice signal; the first on/off voice signal is an on/off voice sent by the user against the interactive flat panel display device, for example, the user may send "on, off, please turn on, or please turn off" voice to the interactive flat panel display device, and the sensor 111 will collect the above voice sent by the user as the first on/off voice signal.
The processing module 112 is configured to digitize the first on-off voice signal to form a second on-off voice signal. The second on-off voice signal is a digital signal formed by digitizing the first on-off voice signal acquired by the sensor 111. For example, the processing module 112 may have data processing capability and signal processing capability, and may be an integrated Circuit chip, for example, the processing module 112 may be a general purpose processor, such as a microprocessor or any conventional processor, such as an SOC, MCU or CPU, a DSP, an ASIC (Application SPECIFIC INTEGRATED Circuit), or other programmable logic device, etc.
The power pin VDD is electrically connected to an external power supply, and is used for supplying power to the processing module 12 through the power pin VDD.
The clock pin CLK is used for outputting a clock signal to the processing unit 12 to which it is connected.
The DATA pin DATA is used for outputting the second switching voice signal DATA processed by the processing module 112 to the processing unit 12 connected with the second switching voice signal DATA. The DATA pin DATA may include a plurality of DATA pins, as shown in fig. 4, and the DATA pin DATA may include 3 DATA pins DATA, namely, a DATA pin DATA0, a DATA pin DATA1 and a DATA pin DATA2, respectively, and the second switching voice signal DATA processed by the processing module 112 is output to the processing unit 12 through the DATA pin DATA0, the DATA pin DATA1 and the DATA pin DATA 2.
The microphone select pin L/R is used to output the microphone of the silicon microphone unit 11 is located on the left or right side of the interactive flat panel display device.
For example, the silastic unit 11 is a digital signal silastic unit, with a clock frequency of 1 to 4.8MHZ, high sensitivity and high signal to noise ratio.
In this embodiment, the silicon microphone unit can accurately collect relevant on-off voice signals, and has high collection sensitivity and high signal-to-noise ratio, and the collected voice signals are subjected to internal digital processing, so that the processing pressure of the subsequent processing unit can be reduced.
In one embodiment, the processing unit 12 is electrically connected to the on-off circuit 13, and is configured to identify the second on-off voice signal, and send an on-off control signal to the on-off circuit 13 according to the identification result.
Specifically, the processing unit 12 is built with a preset voice algorithm, and the preset voice algorithm can perform voice recognition on the received second on-off voice signal, recognize whether the received second on-off voice signal is an on-off voice signal or an off-off voice signal, and send an on-off control signal or an off-control signal to the on-off circuit 13 according to the recognized result, so as to control the on-off circuit 13 to realize on-off of the interactive flat panel display device.
The processing unit 12 is a device having a data processing function and a communication processing function, and may be an integrated Circuit chip, for example, the processing unit 12 may be a general-purpose processor, such as a microprocessor or any conventional processor, such as an SOC, MCU or CPU, a DSP, an ASIC (Application SPECIFIC INTEGRATED Circuit), or other programmable logic device, etc.
SoC (System on Chip), also known as system-on-chip, is an integrated circuit with special purpose objects, which contains the complete system and has the entire contents of embedded software.
MCU (Microcontroller Unit, micro control unit), also called single chip Microcomputer (SINGLE CHIP Microcomputer) or single chip Microcomputer, is to properly reduce the frequency and specification of CPU (Central Process Unit, CPU), integrate the peripheral interfaces such as memory, counter, USB, A/D conversion, UART, PLC, DMA, etc., even LCD driving circuit on a single chip to form a chip-level computer, and control different combinations for different application occasions.
In one embodiment, as shown in fig. 1, the on-off detection circuit 1 further includes a first filtering unit 14, where the first filtering unit 14 is electrically connected to the DATA pin DATA of the silastic unit 11 and the processing unit 12, respectively, and is configured to filter a second on-off voice signal output by the DATA pin DATA of the silastic unit 11 and transmit the filtered second on-off voice signal to the processing unit 12.
Specifically, as shown in fig. 3 and 4, the first filtering unit 14 includes a first capacitor C1 and a magnetic bead 141, a first end of the magnetic bead 141 is electrically connected to the DATA pin DATA of the silastic unit 11, a second end of the magnetic bead 141 is electrically connected to the processing unit 12, the first end of the first capacitor C1 is electrically connected to the first end of the magnetic bead 141 and then is connected to the DATA pin DATA of the silastic unit 11, and a second end of the first capacitor C1 is grounded.
In this embodiment, by setting the first filtering unit in the on-off detection circuit, the first filtering unit is electrically connected to the DATA pin DATA of the simi unit and the processing unit, so that the second on-off voice signal output by the DATA pin DATA of the simi unit can be filtered, and clutter interference of the second on-off voice signal is reduced, so that the processing unit can recognize the on-off voice signal more accurately.
In one embodiment, as shown in fig. 1, the on-off detection circuit 1 further includes a second filtering unit 15, where the second filtering unit 15 is electrically connected to the clock pin CLK of the silastic unit 11 and the processing unit 12, respectively, and is configured to filter a clock signal output by the clock pin CLK of the silastic unit 11 and transmit the filtered clock signal to the processing unit 12.
Specifically, as shown in fig. 3, the second filter unit 15 includes a second capacitor C2 and a second resistor R2, wherein a first end of the second resistor R2 is electrically connected to the clock pin CLK of the silastic unit 11, a second end of the second resistor R2 is electrically connected to the processing unit 12, a first end of the second capacitor C2 is electrically connected to the first end of the second resistor R2 and then is connected to the clock pin CLK of the silastic unit 11, and a second end of the second capacitor C2 is grounded.
In this embodiment, by arranging the second filtering unit in the on-off detection circuit, the first filtering unit is electrically connected to the clock pin CLK of the silastic unit and the processing unit, so that the clock signal output by the clock pin CLK of the silastic unit can be filtered, and clutter interference of the clock signal is reduced, so as to provide a more accurate clock signal for the processing unit.
In one embodiment, as shown in fig. 3, the on/off detection circuit 1 further includes a first resistor R1, a first end of the first resistor R1 is electrically connected to the microphone selection pin L/R of the silastic unit 11, and a second end of the first resistor R1 is grounded.
In one embodiment, as shown in fig. 1 and 3, the on-off detection circuit 1 further includes an on-off button 16, where the on-off button 16 is electrically connected to the processing unit 12 and the on-off circuit 13, respectively, and is used for being pressed by a user to realize manual on-off of the interactive flat panel display device.
Specifically, when the on/off button 16 is pressed by the user, the on/off button 16 outputs an on/off signal to the processing unit 12. The processing unit 12 receives the on-off signal input by the on-off key 16, and then the processing unit 12 outputs an on-off control signal or an off-off control signal to the on-off circuit 13 according to the current working state of the interactive flat panel display device; if the current working state of the interactive flat panel display device is a starting working state, outputting a shutdown control signal to the switching circuit 13; if the current operating state of the interactive flat panel display device is the off operating state, a power-on control signal is output to the switching circuit 13.
In this embodiment, the on-off key is disposed in the on-off detection circuit, and the on-off key is electrically connected to the processing unit and the on-off circuit, respectively, and is used for being pressed by a user to realize manual on-off of the interactive flat panel display device. Therefore, the on-off detection circuit is compatible with two modes of key on-off and MIC voice detection on-off, the practicability and the functionality of the interactive flat panel display device are improved, and the user experience is improved.
The utility model provides a startup and shutdown detection circuit, which is characterized in that in a specific working process, the circuit comprises the following components:
The silastic unit 11 can collect the first on-off voice signal around the interactive flat panel display device at any time, if the first on-off voice signal is successfully collected, the first on-off voice signal is processed to form a second on-off voice signal, and the second on-off voice signal is transmitted to the processing unit 12 through the DATA pin DATA. After receiving the second on-off voice signal transmitted by the simi unit 11, the processing unit 12 performs voice recognition on the received second on-off voice signal by using a built-in preset voice algorithm, recognizes whether the received second on-off voice signal is an on-state voice signal or an off-state voice signal, and sends an on-state control signal or an off-state control signal to the on-off circuit 13 according to the recognized result. The on-off circuit 13 realizes the on-off of the mutual flat panel display device according to the on-off control signal, and outputs a low level to realize the on-off of the mutual flat panel display device if the on-off control signal is received; and if the shutdown control signal is received, outputting a high level to realize shutdown of the interactive flat panel display device. Therefore, the voice on-off signal can be detected, the on-off of the voice control interactive flat panel display device is realized, the on-off key is not required to be manually operated by a user, the operation of the user is convenient, and the user experience is improved.
The silicon microphone unit 11 does not collect the first on-off voice signal, but the processing unit 12 receives the on-off signal input by the on-off key 16, and then the processing unit 12 outputs an on-off control signal or an off-off control signal to the on-off circuit 13 according to the current working state of the interactive flat panel display device; if the current working state of the interactive flat panel display device is a starting working state, outputting a shutdown control signal to the switching circuit 13; if the current operating state of the interactive flat panel display device is the off operating state, a power-on control signal is output to the switching circuit 13. The on-off circuit 13 realizes the on-off of the mutual flat panel display device according to the on-off control signal, and outputs a low level to realize the on-off of the mutual flat panel display device if the on-off control signal is received; and if the shutdown control signal is received, outputting a high level to realize shutdown of the interactive flat panel display device.
Based on the same concept, in one embodiment, as shown in fig. 5, the present utility model provides an interactive flat panel display device 100 including the on-off detection circuit 1 according to any one of the above embodiments.
In this embodiment, the on-off detection circuit 1 is identical to the on-off detection circuit 1 described in any one of the above embodiments, and specific structures and functions may refer to the on-off detection circuit 1 described in any one of the above embodiments, and are not described herein again.
In this embodiment, by providing an interactive flat panel display device, the interactive flat panel display device includes an on/off detection circuit, the on/off detection circuit includes a silicon microphone unit, a processing unit, and an on/off circuit, wherein: the silicon microphone unit is electrically connected with the processing unit, acquires a first switching on/off voice signal, processes the first switching on/off voice signal to form a second switching on/off voice signal, and transmits the second switching on/off voice signal to the processing unit; the processing unit is electrically connected with the switching circuit and sends a switching control signal to the switching circuit according to the received second switching voice signal; the on-off circuit realizes the on-off of the mutual flat panel display device according to the on-off control signal. Therefore, the interactive flat panel display device can detect the voice on-off signal, realize voice control on-off, avoid manual operation of on-off keys by a user, facilitate user operation and improve user experience. The method can solve the problems that the switching on and shutting down of the traditional interactive flat panel display device requires manual operation of switching on and shutting down keys by a user, is inconvenient for the user to operate and has poor user experience.
It should be noted that the embodiments of the above-mentioned interactive flat panel display device and the on-off detection circuit embodiment belong to the same concept, and specific implementation processes of the embodiments of the on-off detection circuit are detailed in the on-off detection circuit embodiment, and technical features of the on-off detection circuit embodiment are correspondingly applicable to the embodiments of the above-mentioned interactive flat panel display device, which are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A power-on/off detection circuit, the power-on/off detection circuit being applied to an interactive flat panel display device, comprising: the system comprises a silicon microphone unit, a processing unit and a startup and shutdown circuit, wherein:
The silicon microphone unit is electrically connected with the processing unit and is used for collecting a first switching on/off voice signal, performing digital processing to form a second switching on/off voice signal and transmitting the second switching on/off voice signal to the processing unit;
The processing unit is electrically connected with the switching circuit and is used for recognizing the second switching circuit voice signal and sending a switching control signal to the switching circuit according to the recognition result;
The on-off circuit is used for realizing on-off of the interactive flat panel display device according to the on-off control signal.
2. The power on/off detection circuit of claim 1, wherein the silicon-on-wheat unit comprises a sensor, a processing module, a clock pin, a data pin, and a microphone selection pin;
The sensor is electrically connected with the processing module and is used for collecting a first on-off voice signal;
the processing module is used for performing digital processing on the first switching on/off voice signal to form a second switching on/off voice signal.
3. The power on/off detection circuit according to claim 2, further comprising a first filter unit electrically connected to the data pin of the silastic unit and the processing unit, respectively.
4. The power on/off detection circuit of claim 3, wherein the first filter unit comprises a first capacitor and a magnetic bead, a first end of the magnetic bead is electrically connected with the data pin of the silicon microphone unit, a second end of the magnetic bead is electrically connected with the processing unit, the first end of the first capacitor is electrically connected with the first end of the magnetic bead and then connected to the data pin of the silicon microphone unit, and a second end of the first capacitor is grounded.
5. The power-on/off detection circuit according to claim 2, further comprising a second filter unit electrically connected to the clock pin of the silicon-on-wheat unit and the processing unit, respectively.
6. The power on/off detection circuit according to claim 5, wherein the second filter unit comprises a second capacitor and a second resistor, a first end of the second resistor is electrically connected to the clock pin of the silicon microphone unit, a second end of the second resistor is electrically connected to the processing unit, a first end of the second capacitor is electrically connected to the first end of the second resistor and then is connected to the clock pin of the silicon microphone unit, and a second end of the second capacitor is grounded.
7. The power on/off detection circuit of claim 2, further comprising a first resistor, a first end of the first resistor being electrically connected to a microphone select pin of the silicon microphone unit, a second end of the first resistor being grounded.
8. The power on/off detection circuit of claim 1, further comprising a power on/off button electrically connected to the processing unit and the power on/off unit, respectively, for being pressed by a user to realize manual power on/off of the interactive flat panel display device.
9. The power on/off detection circuit of claim 1, wherein the processing unit comprises a system on a chip, a micro-control unit, or a central processing unit.
10. An interactive flat panel display device comprising the on-off detection circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476668.0U CN221043016U (en) | 2023-09-12 | 2023-09-12 | Interactive flat panel display equipment and on-off detection circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476668.0U CN221043016U (en) | 2023-09-12 | 2023-09-12 | Interactive flat panel display equipment and on-off detection circuit thereof |
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| CN221043016U true CN221043016U (en) | 2024-05-28 |
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| CN202322476668.0U Active CN221043016U (en) | 2023-09-12 | 2023-09-12 | Interactive flat panel display equipment and on-off detection circuit thereof |
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| Country | Link |
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| CN (1) | CN221043016U (en) |
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2023
- 2023-09-12 CN CN202322476668.0U patent/CN221043016U/en active Active
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