JP6276099B2 - Elevator communication method and system - Google Patents

Description

  The present invention relates to an elevator communication method and system, and more particularly to an elevator communication method and system for performing communication between a hall wireless terminal and a host terminal by wireless communication.

  The elevator operates mainly based on the information of the hall call button installed at the landing on each floor and the destination registration button installed in the car. These pieces of information are collected in an elevator system control device that controls the elevator, and elevator dispatch control is performed.

  Therefore, the hall call buttons installed at the landings on each floor are connected to the hall terminals provided on each floor, and the destination registration button in the car is connected to the car terminal provided on the car. The state of each button (hall call button, destination registration button) is sequentially transmitted from each terminal (hall terminal, car terminal) to the control device of the elevator system mainly using communication. That is, the elevator system control device is a communication host terminal.

  Conventionally, a host terminal and a hall terminal or between a host terminal and a car terminal are connected by a cable for transmitting an electric signal, and information is transmitted by wired communication. However, in the technology that connects the host terminal, the car terminal and the hall terminal with a cable, the cable becomes longer in proportion to the height of the building (building) where the elevator is installed. . Moreover, when the floor of a building is high, there is a problem that a relay station must be installed or a plurality of transmission systems must be provided due to insufficient transmission capability. Furthermore, since the cable between the host terminal and the car terminal always goes up and down as the car moves up and down, there is a possibility of disconnection due to bending, and periodic inspection is also necessary.

  As a method for solving the problems caused by wired communication as described above, there is a method using wireless communication as described in Patent Document 1, for example. In the thing of patent document 1, the radio | wireless communication is performed between the terminal for halls attached to each floor, and the host terminal connected to the control apparatus of an elevator system.

JP 2003-146546 A

  Patent Document 1 describes using wireless communication for an elevator. However, when wireless communication is used, it is necessary to consider measures when wireless communication does not function.

  For example, when a hall terminal fails, there is a problem that an elevator cannot be used because a car call signal cannot be transmitted even if a push button for creating a car call is pressed.

  In addition, for example, the hall terminal relays wireless communication via a hall terminal via a hall terminal, such as a configuration in which information is communicated to a radio terminal of a control panel (communication host terminal that is a control device of an elevator system). In the case of a system configuration that functions as a wireless terminal, there is a problem that wireless communication is interrupted halfway due to a failure of the wireless communication function of the hall terminal.

  Furthermore, when exchanging the failed hall terminal, the elevator service is stopped because the elevator is stopped. Since the user cannot use the elevator during the stoppage, inconvenience arises particularly in high-rise buildings.

  From the above, the object of the present invention is to solve the above-mentioned problems of the prior art, and in particular, an elevator communication method capable of establishing wireless communication without stopping the elevator even when there is a failure or replacement work, and To provide a system.

  In order to solve the above-mentioned problems, the present invention is an elevator communication method for transmitting information of each floor to an elevator drive system that controls an elevator car in a building, for a host coupled to the elevator drive system. Including a wireless terminal and a plurality of hall wireless terminals provided on each floor of the building. The hall wireless terminals on each floor transmit information to the host wirelessly by a signal transfer process in a predetermined order between the upper and lower floors. Information transmitted by broadcast communication when information on the host wireless terminal is transmitted to each hall wireless terminal, and the hall wireless terminal cannot transmit information by signal transfer processing between the upper and lower floors. An elevator communication method characterized by securing a communication path to a host wireless terminal via another hall wireless terminal that has performed transmission and received broadcast communication. That.

  The present invention also includes a host wireless terminal coupled to the elevator drive system for transmitting information on each floor to the elevator drive system that controls the elevator car in the building, and a plurality of floor terminals provided on each floor of the building. An elevator communication system including a hall wireless terminal, wherein the hall wireless terminals on each floor transmit information to the host wireless terminal by a signal transfer process in a predetermined order between the upper and lower floors, and The transmission means for transmitting the information of the host wireless terminal to each hall wireless terminal, the failure detection processing unit for detecting that the information transmission by the signal transfer process between the upper and lower floors cannot be performed, and the failure detection processing unit Including a means for performing information transmission by broadcast communication when detected, and a means for transmitting the broadcast communication when receiving the broadcast communication. And derived a lift of a communication system, characterized in that to secure a communication path to the wireless terminal host.

  According to the present invention, the elevator communication system detects the failure of each wireless terminal and the operation mode state (normal operation, maintenance operation, during repair, replacement, etc.) by the failure detection process of the control panel wireless terminal, and the communication path It is possible to operate without stopping the elevator by dynamically changing the communication path between the wireless terminals by the change process.

The figure which shows the whole structure of the communication system of the elevator which concerns on this invention. The figure which shows the method of ensuring communication between the radio | wireless terminal for hosts, and the radio | wireless terminal for halls. The block diagram which shows the specific example of the radio | wireless terminal for halls which enables a relay and reception confirmation. The flowchart which showed the processing content of the radio | wireless terminal for halls simply. The block diagram which showed the process of the radio | wireless terminal for hosts functionally. The figure which shows an example of the radio | wireless terminal database 64. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an overall configuration diagram of an elevator communication system according to the present invention. This figure shows an elevator and its communication system. First, the elevator will be described.

  The elevator is basically configured by connecting a car 7 that moves across a plurality of floors in a hoistway formed in a building to a weight 6 via a rope 5. The car 7 is moved when the sheave 3 is driven by the electric motor 2. The electric motor 2 is supplied with electric power for driving by an elevator drive system 1 including a power converter and a control device, and is braked by a brake (not shown) used when stopping the car. Reference numeral 4 denotes a rope relay deflector.

  Further, a position detection device 8 for detecting a car position in the hoistway is provided on the car 7, and a floor detector 9 is fixedly arranged on the building structure side forming the hoistway. Thus, the floor position is detected when the movable position detector 8 and the fixed floor detector 9 are present at the opposing positions as the car moves in the height direction. The car position information detected in this way is transmitted from the car 7 to the elevator drive system 1 by wired communication using a cable or wireless communication using the car wireless terminal 30.

  In the embodiment of FIG. 1, the car position detection device 8 is installed on the car 7 side. For example, a pulse generator such as an encoder attached to the motor 2 is used to count pulses, and thereby the inside of the hoistway is counted. The car position at may be detected. Further, as another position detecting device, a magnetic tape may be installed in the hoistway and the car position may be detected by detecting the magnetic tape, and the position detecting device in the present invention does not depend on the means of the detecting method.

  Next, an elevator communication system will be described. In FIG. 1, two sets of communication systems are described. One of the communication systems is a communication system between the car 7 and each floor, and the other communication system is a communication system between the floors. The former is a communication system between the car radio terminal 30 and the hall radio terminals 20, 21, 22, 23, and should be a car-side communication system. The latter is a communication system constructed between the hall radio terminals 20, 21, 22, 23 and the host radio terminal 10, and is referred to as an inter-floor communication system.

  In the former car-side communication system, a car radio terminal 30 is provided in the car 7, and hall radio terminals 20, 21, 22, and 23 are provided in halls on each floor. Broken line arrows 40, 41, 42, and 43 shown in FIG. 1 are based on one-to-one communication between the car radio terminal 30 and the hall radio terminals 20, 21, 22, and 23 on each floor in the former car side communication system. The communication path is shown as an example.

  The elevator communication system according to the present invention mainly relates to the latter inter-floor communication system. In the latter inter-floor communication system, signals transmitted from the hall wireless terminals 20, 21, 22, and 23 are sequentially relayed between the floors and transmitted to the host wireless terminal 10, and the signals transmitted by the host wireless terminal 10 are transmitted. Are sequentially relayed between the floors and sent to the hall wireless terminals 20, 21, 22, 23. FIG. 1 shows wireless communication paths between floors in the inter-floor communication system as R1, R2, R3, and R4.

  In this inter-floor communication system, signals generated by the hall radio terminals 20, 21, 22, 23 are, for example, call signals for each floor. For this reason, the hall radio terminals 20, 21, 22, and 23 on each floor are usually provided with push buttons in the vertical direction so that passengers can call the elevator at the landing.

  The elevator drive system 1 including the power converter and the control device is connected to the host wireless terminal 10, and the control device removes the host wireless terminal 10 from the hall wireless terminals 20, 21, 22, and 23 on each floor. And controlling the power converter in accordance with the elevator call signal received via the elevator to execute the floor control of the elevator, and via the host wireless terminal 10 to the hall wireless terminal of the floor at that time Send the elevator floor position.

  The elevator drive system 1 is provided with operation mode changing means 11 for changing the operation mode of the elevator, which is, for example, a switch for changing the operation mode of the elevator. The operation mode is a normal operation mode in which the elevator performs automatic operation, a maintenance operation mode to be used when performing maintenance work, an installation operation mode to be used when performing installation operation, a rescue operation mode to rescue trapped passengers, etc. There is. In each of these operation modes, the floor to be used at this time (getting off, getting on) is determined. For example, in the normal mode, the vehicle can be stopped on all floors, and in the maintenance operation mode, the vehicle is operated so as not to stop on a specific floor designated as a maintenance target.

  Once these operation modes are input to the elevator system 1, the elevator drive system 1 executes the elevator floor control in accordance with the instructed operation mode, and detects the operation mode to the host wireless terminal 10. Send the operation mode. The host wireless terminal 10 transmits the contents of the operation mode to the hall wireless terminals 20, 21, 22, and 23 on each floor according to the received operation mode. As a result, when, for example, a specific floor is set as a maintenance target in the maintenance operation mode, a new communication path excluding the hall wireless terminal on the floor is constructed and transfer communication is performed.

  Next, a method for ensuring wireless communication between the host wireless terminal 10 and the hall wireless terminals 21, 22, 23 on each floor will be described with reference to FIG. Here, a method is described in which the host wireless terminal 10 changes the wireless communication path when a failure or replacement / repair state of each wireless terminal is detected from communication in a normal state.

  The upper left of FIG. 2 shows communication paths between the hall wireless terminals 21, 22, and 23 and the host wireless terminal 10 in a normal state. When a communication path is configured by a plurality of wireless terminals, the communication path is usually set in advance by default as shown in the upper left of FIG. In this example, the communication path by the initial setting in the normal state is transmitted to the host radio terminal 10 via the hall radio terminals 21 to 22 and 23, and from the host radio terminal 10 to the hall radio terminals 23, 22 This is a relay route to the hall wireless terminal 21 via. Note that the arrow R on the upper left of FIG. 2 indicates the direction of communication (two-way communication), and since the arrow R is described between the hall wireless terminals on each floor, it represents transmission by relay on each floor. ing.

  Accordingly, assuming that an arrow 50 indicating that a car call has been made to the hall radio terminal 22 is generated on the left in the upper part of FIG. 2, this signal is transmitted from the hall radio terminal 22 to the hall radio terminal 23 via the communication path R3. And transmitted to the host wireless terminal 10 via the communication path R4 using the hall wireless terminal 23 as a relay. Thus, this car call needs to be transmitted to the host wireless terminal 10 in order to dispatch the elevator car, and is normally transmitted to the host wireless terminal 10 via the adjacent hall wireless terminal as a relay. .

  At this time, in order to confirm that the communication data has correctly arrived at the reception side, the normal reception side transmits reception completion to the transmission side. For example, the hall wireless terminal 22 transmits the communication data to the host wireless terminal 10. In this case, it is transmitted via the hall radio terminal 23. At this time, when the hall radio terminal 23 receives communication data from the hall radio terminal 22, the hall radio terminal 23 transmits a reception completion message to the hall radio terminal 22. At this time, the signal returned from the hall radio terminal 23 to the hall radio terminal 22 is the reception confirmation signal.

  FIG. 3 shows a specific example of the hall wireless terminal that enables the above-described relay and reception confirmation. As shown in the figure, the hall radio terminal 200 includes a transmission / reception antenna 203, a transmission / reception unit 201 including a reception unit 201R and a transmission unit 201S, and a calculation unit 202 such as a computer.

  When the hall radio terminal 200 of FIG. 3 is 23, the radio communication signal frame sent from the hall radio terminal 22 to the hall radio terminal 23 in response to the call signal 50 is addressed as shown in S1. The transmission destination address AR of the part A is the host wireless terminal 10, and the transmission source address AS is the hall wireless terminal 22. The data part D describes the contents of the call signal 50.

  Upon receiving the wireless communication signal frame S1, the hall radio terminal 23 automatically returns a reception confirmation signal ACK to the hall radio terminal 22. The transmission destination address AR of the address part A of the reception confirmation signal ACK is the hall wireless terminal 22, and the transmission source address AS is the hall wireless terminal 23. The data part D describes the contents of the reply confirmation signal. This process is automatically executed upon reception.

  On the other hand, the arithmetic unit 202 analyzes the radio communication signal frame S1. If the content is not addressed to itself, the arithmetic unit 202 changes the source address AS of the address part A to the hall radio terminal 23 and changes the signal S2 Is transmitted to the host wireless terminal 10. If the wireless communication signal frame S1 is addressed to itself, internal calculation processing is executed in accordance with the received content.

  The hall radio terminal 23 monitors the reception confirmation signal ACK automatically transmitted from the hall radio terminal on the upper floor (including the host radio terminal 10) that has received the signal S2 transferred by the relay. . When the reception confirmation signal ACK is not received within a predetermined time after the transmission of the transfer signal S2, the hall radio terminal 23 determines and confirms a communication abnormality with the upper floor. This determination abnormality information is transmitted to the hall wireless terminal on the lower floor. In addition, the transfer of the determination abnormality information allows the hall radio terminal 22 that finally issued the call signal 50 to know. The detection content in this case includes information for specifying the place (floor or communication path) where the communication abnormality has occurred.

  Although the above description has been made with the example of the hall radio terminal 23, all the hall radio terminals including the host radio terminal 10 are configured to function under the communication protocol as described above. Note that any communication protocol may be used, but it is possible to specify the location where an abnormality has occurred by using a relay transfer function and a reception confirmation signal.

  The upper center of FIG. 2 shows a state where the hall radio terminal 23 has failed. At this time, if the car call 50 is made in the hall radio terminal 22, the hall radio terminal 22 transmits information to the hall radio terminal 23 to be relayed, but in the hall radio terminal 23, the corresponding terminal breaks down. Therefore, communication data cannot be received. For this reason, the hall radio terminal 22 can detect that its own information cannot be correctly communicated without receiving the information that has been received. In addition, it is possible to know the location of the communication failure at this time.

  The upper right part of FIG. 2 shows a method of communicating that the failure is detected to the host wireless terminal when the hall wireless terminal 22 detects the failure of the hall wireless terminal 23. The communication path in this case is indicated by RX, and indicates that, for example, broadcast communication (broadcast communication) is performed. Usually, as shown in the upper left of FIG. 2, the communication path of the wireless communication is determined in advance, but as shown in the upper right of FIG. 2, a failure occurred by taking a method of communicating to an unspecified number of terminals all at once. It can be directly transmitted to the host wireless terminal 10 without going through the hall wireless terminal 23.

  At this time, as a condition of communication data when the hall wireless terminal 22 transmits wireless communication, it is a communication method for transmitting to an unspecified number (for example, broadcasting), and the transmission destination is the host wireless terminal 10. In addition, by including that the malfunctioning terminal is the hall radio terminal 23, each hall radio terminal can retransmit until the host radio terminal 10 receives the corresponding data.

  In transmission during broadcast communication due to communication abnormality, there may be a case where the physical distance between the hall wireless terminal 22 and the host wireless terminal 10 is long and the wireless communication does not reach directly. As a countermeasure, the car 30 may be moved to an intermediate point between the hall radio terminal 22 and the host radio terminal 10 and the car radio terminal 30 may be used for relaying (lower right in FIG. 2).

  The lower left of FIG. 2 shows a state in which a direct communication path R10 can be secured between the hall radio terminal 22 and the host radio terminal 10, excluding the malfunctioning hall radio terminal 23. In a state where a communication path can be secured by the broadcast communication, the hall wireless terminal 22 and the host wireless terminal 10 may be placed in a normal transfer relationship to transmit and receive signals. Broadcast communication is a communication method used transiently.

  2 shows a state where the communication path is reconfigured after the host wireless terminal 10 receives the failure information from the hall wireless terminal 22 in this manner. By excluding the failed hall radio terminal 23 from the communication path and configuring a communication path directly with the hall radio terminal 22, it is possible to operate the elevator even if a failure occurs in the hall radio terminal. . In the above example, the case of the hall radio terminal 22 is shown. However, in any hall radio terminal, the failure detection of the terminal and the reconfiguration of the route of the radio communication can be performed by the above method.

  FIG. 4 is a flowchart showing the processing contents of the hall wireless terminal in a simplified manner. In the first processing step S100, it is confirmed whether the received signal is based on a normal transmission frame S1 with a destination designation or a broadcast transmission frame that does not specify a destination.

  In the case of the normal transmission frame S1 designated as the destination, in the processing step S101, the reception confirmation signal ACK is returned, and in the processing step S102, the transfer signal S2 is transmitted. After the transmission signal S2 is transmitted, it is confirmed in processing step S103 whether or not the reception confirmation signal ACK has been received within a predetermined time. If the reception confirmation signal ACK has been received, a series of processing is completed assuming that transmission / reception has been completed normally (processing step). S108). Note that the processing in step S103 is executed not only when the received signal is transferred, but also when a car call occurs within itself and a signal is transmitted from itself, and confirmation of the reception confirmation signal ACK is performed. Processing shall be performed.

  In the processing step S103, when the reception confirmation signal ACK is not received within a certain time after the transmission of the transfer signal S2 (including the case where the transmission signal is transmitted from itself), the following measures can be taken. One of the measures is to issue a signal notifying reception failure to the first transmission source. The reception failure notification is sequentially transferred and is known by the hall wireless terminal that has first issued the signal. Note that the reception failure notification preferably includes information for identifying the failure location.

  Another countermeasure is to perform broadcast communication in processing step S105. The communication content at the time of broadcast communication includes information on the failure location. Note that who performs the broadcast communication may be the hall wireless terminal that first detected the communication failure or the hall wireless terminal that first issued the signal. . In the processing step S104 in the flowchart of FIG. 4, it is described that only the failure part is specified without specifying who performs the process.

  Next, the host wireless terminal 10 receives this by broadcast communication, confirms the location of the failure, and then communicates on a new communication path that excludes the hall wireless terminals at the failure location from all the hall wireless terminals. Shall be made known. Thus, when a new route can be secured (processing step S107), the series of processing ends (processing step S108). The above processing is performed in consideration of the processing in the hall radio terminal that started communication first, but this may be the responsibility of the hall radio terminal that first detected a communication failure.

  On the other hand, the process in the other hall | wireless radio | wireless terminal which received broadcast communication is demonstrated below. This process starts when a broadcast transmission frame that does not specify a destination is received in the first processing step S100. The hall radio terminal transmits the received broadcast transmission frame as it is (transfer: processing step S106). Each hall wireless terminal that receives the broadcast communication forwards the content as it is, and this content is detected by the host wireless terminal 10, and the host wireless terminal 10 generates a communication fertilizer and is defective. It will be a place to know where it occurs.

  FIG. 5 is a block diagram functionally showing processing of the host wireless terminal 10. According to this block diagram, the host radio terminal 10 obtains communication data from each hall radio terminal or car radio terminal 30 and information on the designated operation mode, and finally the radio communication system side ( Communication data to be sent to each hall wireless terminal or car wireless terminal) or communication data to be given to the elevator drive system side.

  Among these, first, regarding the communication data on the acquiring side, the reception processing unit 60 receives the communication data transmitted from each hall radio terminal or car radio terminal 30. If the communication data is data for making a car call from each hall radio terminal, the floor information for calling the car is output to the car call creation processing unit 62. The car call creation processing unit 62 creates the moving direction of the car and the target floor based on the car call information output from the reception processing unit 60. Based on the information on the moving direction of the car and the destination floor, the host wireless terminal 10 sends the information to the elevator drive system 1 side via the transmission processing unit 66 to execute the elevator floor control and transmit the information. The data is transmitted as communication data to the radio communication system side (each hall radio terminal or car radio terminal) via the processing unit 66. Such information is appropriately displayed in the car or on each floor.

  Next, when the received communication data includes failure information of the wireless terminal, the host wireless terminal 10 outputs information on the failed terminal to the failure detection processing unit 63. The failure detection processing unit 63 extracts the failure information of the wireless terminal from the communication data processed by the reception processing unit 60 and records it in the wireless terminal database 64. Further, the failure detection processing unit 63 outputs a command for reconstructing a wireless communication route to the communication route change processing unit 65.

  The communication route change processing unit 65 executes route change processing according to the information recorded in the wireless terminal database 64 and the instructed operation mode. Of these operation modes, the operation mode detection processing unit 61 detects the operation mode set by the operation mode changing means 11 and outputs the detected operation mode to the communication path change processing unit 65. On the other hand, information of each wireless terminal is accumulated in the wireless terminal database 64, and information such as a unique code of the wireless terminal, a floor associated with the wireless terminal, and the presence or absence of a failure is stored. As described above, the operation mode is a normal operation mode in which the elevator automatically operates, a maintenance operation mode to be used when performing maintenance work, an installation operation mode to be used when performing installation operation, and to rescue a trapped passenger Rescue operation mode.

  The communication path change processing unit 65 outputs a command for reconfiguring the communication path when there is a wireless terminal that has failed due to the processing by the failure detection processing unit 63 or when it is desired to change the communication path according to the operation mode. To do.

  For example, when the elevator is in a normal operation mode in which automatic operation is performed, it is determined to perform sequential transfer processing between the floors in the order of the left in the upper row in FIG. In the maintenance operation mode used when performing, for example, it is determined to perform the sequential transfer process between the floors in the order excluding the hall wireless terminal 22 instructed for maintenance. Further, in these operation modes, when a malfunctioning wireless terminal is discovered by the process in the malfunction detection processing unit 63, the sequential transfer process between the floors in the order in which the malfunctioning hall wireless terminal 23 is also excluded. Decide to do.

  The transmission processing unit 66 transmits car call confirmation information, a communication path reconstruction command, communication data reception completion information, and the like to the wireless communication system side.

  FIG. 6 shows an example of the wireless terminal database 64 that enables the above processing. In this case, the unique code 64A of each wireless terminal is associated with the terminal position 64B, and the state 64C of each terminal and whether it is on the network (network state 64D) are managed. In the example of FIG. 6, the unique code A is connected to the first floor, B is the second floor, C is the fourth floor, D is the third floor, and E is linked to the car. You can see that it is excluded from the network.

  Since the order of the unique code 64A and the floor 64B does not necessarily match, the association between the unique code and the floor is set at the stage of installing the elevator or the like. By managing with the table in this way, when the wireless terminal is in a failure state and on the network, a command can be output to reconstruct the communication network except for the wireless terminal that has failed.

  According to the above invention, the wireless terminal for the car provided in the elevator car, the wireless terminal for the car provided on each floor and the plurality of wireless terminals for the hall for performing wireless communication with the wireless terminal for the control panel, and the control panel are provided. The control panel wireless terminal has a communication path change process and a failure detection process, and the communication path change process changes the communication path except for an arbitrary wireless terminal. This is an elevator communication system that detects the failure of each wireless terminal by the failure detection process of the control panel wireless terminal and the operation mode status (normal operation, maintenance operation, repairing / replacement, etc.), and each wireless by the communication path change process. By dynamically changing the communication path between terminals, it is possible to eliminate the interruption of wireless communication on the way, so it is possible to operate without stopping the elevator

1: Elevator drive system 2: Electric motor 3, 4: Sheave 5: Rope 6: Weight 7: Car 8: Car position detector 9: Floor detector 10: Host wireless terminals 20, 21, 22, 23: Hall wireless terminal 30: Car wireless terminal

Claims (7)

An elevator communication method for transmitting information on each floor to an elevator drive system that controls an elevator car in a building,
Including a host wireless terminal coupled to the elevator drive system and a plurality of hall wireless terminals provided on each floor of the building, wherein the hall wireless terminals on each floor are predetermined between upper and lower floors. Information is transmitted to the host wireless terminal by an order signal transfer process, and information of the host wireless terminal is transmitted to each hall wireless terminal,
When the hall wireless terminal cannot perform information transmission by signal transfer processing between the upper and lower floors, it performs information transmission by broadcast communication and passes through the other hall wireless terminals that have received the broadcast communication. Elevator communication , wherein a communication path to the host wireless terminal is secured , and a predetermined order of signal transfer between the upper and lower floors is set according to an elevator operation mode. Method. The elevator communication method according to claim 1,
The hall radio terminal returns a signal reception confirmation signal upon signal reception, and determines that information transmission by signal transfer processing cannot be performed when a signal reception confirmation signal cannot be obtained after signal transmission. The elevator communication method. The elevator communication method according to claim 1 or 2,
An elevator communication method characterized in that, when the hall radio terminal performs information transmission by broadcast communication, information of the hall radio terminal in which transmission failure has occurred is included in a part of information to be transmitted. The elevator communication method according to any one of claims 1 to 3,
The predetermined order of signal transfer between the upper and lower floors is determined so as to perform sequential transfer processing of the order between the floors according to the initial operation value when the elevator operation mode is the normal operation mode. When the operation mode of the elevator is a maintenance operation mode for performing maintenance work, it is determined to perform sequential transfer processing in order between the floors excluding the hall wireless terminals instructed for maintenance. Elevator communication method. The elevator communication method according to any one of claims 1 to 4 ,
An elevator communication method, wherein a car wireless terminal is mounted on an elevator car, and the car wireless terminal has a relay function for forwarding and relaying the broadcast communication. A wireless terminal for a host coupled to the elevator drive system for transmitting information of each floor to an elevator drive system that controls an elevator car in the building, and a plurality of hall wireless terminals provided on each floor of the building An elevator communication system including
The hall wireless terminals on each floor transmit information to the host wireless terminals by a signal transfer process in a predetermined order between the upper and lower floors, and the information on the host wireless terminals is transmitted to the hall wireless terminals. A transmission means for transmitting data, a failure detection processing unit for detecting that information cannot be transmitted by signal transfer processing between the upper and lower floors, and information transmission by broadcast communication when the failure detection processing unit detects a failure And a means for transmitting the broadcast communication when receiving the broadcast communication, and securing a communication path to the host wireless terminal via the other hall wireless terminal , The elevator communication system, wherein a predetermined order of signal transfer between the upper and lower floors is set in accordance with an operation mode of the elevator. The elevator communication system according to claim 6 ,
The host wireless terminal coupled to the elevator drive system includes a failure detection processing unit that detects that information transmission by signal transfer processing cannot be performed from received information, and a communication path change processing unit that changes a communication path. An elevator communication system comprising means for transmitting a new communication path when the information cannot be transmitted to the hall radio terminal.

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