JP5493638B2 - Protective radio system, protective radio apparatus, and failure determination method for protective radio apparatus - Google Patents

Description

  The present invention relates to a protection radio system including a protection radio device installed in a train or a station, a protection radio device, and a failure determination method for the protection radio device.

  There are protective radio devices that are installed in trains such as railway vehicles or installed in stations. A radio protection device is a radio wave modulated with a protection signal to notify other trains etc. of the occurrence of an accident, etc. according to the operation of the crew, etc. (hereinafter referred to as a protection radio). ) Is issued (see, for example, Patent Document 1).

  When the protective radio device is mounted on a train, the test of the protective radio device is performed before the train is issued, and then the train enters service. However, it is difficult to recognize even if an accidental failure occurs in the protective radio device during train operation. This is because if the test of the protection radio device is performed during train operation, the protection radio is issued outside the train, which may hinder the operation of other trains and the like. That is, it is difficult to perform a test of the protective radio device during train operation.

  A radio wave modulated with a test signal that is different from the protective signal that is issued when an accident or the like occurs during actual train operation, in the confirmation test to confirm whether the protective radio device operates normally If the test radio wave is issued, even if the protection radio device is tested during train operation, there is no possibility that the operation of other trains will be hindered. However, it is desirable to test the protective radio device using the protective signal that is actually used. In addition, there is a problem of how a system for managing train operation should collect test results of protective radio equipment.

  Patent Document 2 does not relate to a protection radio apparatus, but performs a self-diagnosis on whether or not a radio base station has failed, and transmits information indicating the diagnosis result to an operation center via a communication network. Is described.

JP 2008-254512 A (paragraphs 0003 and 0004) JP 2004-88236 A (paragraphs 0013 to 0041, FIG. 4)

  However, the test method described in Patent Document 2 is applied to the test of the protective radio device so that the self-diagnosis is performed by the protective radio device and the result of the self-diagnosis is transmitted to the system that manages the operation of the train. However, in the self-diagnosis, when a radio wave based on a protection signal that is actually used is issued, other trains running in the vicinity receive the radio wave and interfere with the operation of the other train. The challenge remains.

  Therefore, the present invention relates to a protection radio system, a protection radio device, and a protection radio device failure determination method that can determine whether or not the protection radio device has failed without hindering the operation of other trains. The purpose is to provide.

The protection radio system according to the present invention includes a protection radio device that issues a protection radio and a central control unit that includes a control unit that instructs the protection radio device to start a test operation . The protection radio device uses the protection radio as an antenna. Output means for outputting from the connected output end, receiving means for receiving the protection radio at the input end connected to the antenna, and device control means for controlling the output means and the receiving means, the device control means, In response to an instruction to start a test operation by the control means, the output end and the input end are electrically connected, the output end and the input end are electrically disconnected from the antenna, and control is performed via the output means. When a non-modulated signal is output with power, and the received power of the signal received by the receiving means is less than the reference value, it is determined that a failure has occurred and the determination result is output, and a protection signal for the output means Output In the case where the signal and protection signals received from the signal means does not match, it is determined that a failure has occurred, and executes a process of outputting the determination result.

The protection radio apparatus according to the present invention controls the output means for outputting the protection radio from the output end connected to the antenna, the reception means for receiving the protection radio at the input end connected to the antenna, and the output means and the reception means. device control means and a, device control means for, when performing the test, and electrically connecting the input terminal and the output terminal, an electrically disconnected controls the input and the output from the antenna, the output A process of outputting a non-modulated signal at a specified power via the means and determining that a failure has occurred when the received power of the signal received by the receiving means is less than a reference value, and outputting the result of the determination; output protection signal to the unit, when the signal received from the receiving means and the protection signal does not match, it is determined that a failure has occurred, and characterized by performing the process of outputting the determination result To do.

A failure determination method for a protection radio device according to the present invention is a failure determination method for a protection wireless device that issues a protection radio , and includes an output end connected to an antenna and an input end connected to the antenna in the protection radio device. Electrically connecting and electrically disconnecting the output end and input end from the antenna , outputting a non-modulated signal to the output end with the specified power, and the received power of the signal input to the input end is less than the reference value cases, it is determined that a failure has occurred, and outputting a determination result, outputs a protection signal to the output terminal, when the signal received from the input end and the protection signal does not match, failure occurs And a step of outputting the determination result .

  According to the present invention, since the test of the protection radio device can be performed during the operation of the train, the failure of the protection radio device can be found at an early stage. In addition, it is possible to discover a failure that occurred accidentally during train operation.

It is a block diagram which shows the structural example of the protection radio | wireless system by this invention. It is a block diagram which shows the structural example of a telephone system radio | wireless part and a protection type | system | group radio | wireless part. It is a sequence diagram which shows operation | movement of a protection radio system. It is explanatory drawing which shows the structural example of a protection radio | wireless apparatus. It is a block diagram which shows the outline | summary of this invention.

  An embodiment of a protection radio system according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of a protection radio system.

  As shown in FIG. 1, the protective radio system 1 includes a central control device 100 and protective radio devices (for example, protective radio devices 200a-1, 200a-) mounted on a train (for example, a train 2a) operating on a railway. 2). The central control device 100 is connected to a command console control device 300 and a maintenance server 400. The train 2b in operation is equipped with protective radio devices 200b-1 and 200b-2, and the train 2c in operation is equipped with protective radio devices 200c-1 and 200c-2. Further, a protective radio device 200d connected to a home switch (home SW) 10 that detects the occurrence of an accident or the like is installed at the station. The protective radio devices 200a-1, 200a-2, 200b-1, 200b-2, 200c-1, 200c-2, and 200d may be collectively referred to as the protective radio device 200 because of the same configuration. .

  As shown in FIG. 1, the central control device 100 is connected to a command console operating device 500 via a command console control device 300, and a maintenance terminal 600 and a standing line display device 700 are connected via a maintenance server 400. It is connected.

  In addition, base stations 800a to 800l for relaying information transmitted and received between the protective radio device 200 and the central control device 100 mounted on each train are installed along the railway, for example, at intervals of 2 km. Note that the base stations 800a to 800l may be collectively referred to as the base station 800 because of the same configuration.

  As shown in FIG. 1, the central control device 100 includes a line connection unit 110, a zone control unit 120, a monitoring control unit 130, an on-board monitoring unit 140, an operation unit 150, and a console connection unit 160.

  The line connection unit 110 is connected to each base station 800 via a wired communication line, and transmits and receives information.

  The zone control unit 120 controls the operation of the base station 800 in the zone configured by a plurality of base stations 800 (for example, 10 to 15 base stations 800). The on-board monitoring unit 140 transmits / receives information to / from the protective radio device 200 mounted on each train via the line connection unit 110 and each base station 800. In the storage means (not shown) of the on-board monitoring unit 140, an operation number for identifying each train is registered.

  The monitoring control unit 130 (control unit) monitors the operation of each base station 800 via the line connection unit 110. Moreover, information is transmitted / received to / from the protective radio apparatus 200 installed at the station. When the monitoring control unit 130 reaches the start date and time of the test operation of the protective radio device 200 described later, the on-board monitoring unit 140 includes, among the operation numbers stored in the storage unit of the on-board monitoring unit 140, It requests | requires registering the operation number of the train used as a test object in the memory | storage means of the said monitoring control part 130. FIG.

  Then, the supervisory control unit 130 transmits start request information for requesting the start of the test operation to the protective radio apparatus 200 mounted on the train having the registered operation number via the line connection unit 110 and the base station 800. To do. In addition, when a predetermined time has elapsed since the monitoring control unit 130 requested the start of the test operation, the monitoring control unit 130 transmits the result of the test operation to the protective radio apparatus 200 via the line connection unit 110 and the base station 800. Requests transmission of result information indicating. The display control means is realized by the monitoring control unit 130 and the on-board monitoring unit 140.

  The operation unit 150 is realized by a keyboard or the like operated by a manager of the railway company, and inputs an instruction to the central control device 100.

  The console connection unit 160 is connected to the command console control device 300 and the maintenance server 400, and transmits and receives information.

  The maintenance server 400 outputs the monitoring result of each base station 800 by the monitoring control unit 130 of the central control device 100 and the information received by the on-board monitoring unit 140 from each protective radio device 200 to a display means (not shown). To do. The display means displays information from the maintenance server 400.

  In addition, the maintenance server 400 is connected to the standing line display device 700, for example, from the protective radio device 200 in which the on-board monitoring unit 140 of the central control device 100 is mounted on each train via the line connection unit 110 and each base station 800. Based on the received information, information indicating the position of each train is output to the display means.

  The maintenance terminal 600 is realized by a keyboard or the like operated by a railway company administrator, and inputs information and instructions to the maintenance server 400. Specifically, in accordance with an operation performed by an administrator of the railway company, information indicating the date and time and the number of times that each protective radio apparatus 200 performs a test operation described later is input to the maintenance server 400. The maintenance server 400 registers the input information in a storage unit (not shown) of the central controller 100.

  The console control device 300 controls the central control device 100 based on information and instructions input to the console control device 500 realized by a keyboard or the like operated by an operator.

  Base stations 800a to 800l include line connection units 801a to 801l, transmission / reception units 802a to 802l, and monitoring control units 803a to 803l.

  The line connection units 801a to 801l are connected to the line connection unit 110 of the central control apparatus 100 via a wired communication line, and transmit / receive information to / from the central control apparatus 100 via the wired communication line.

  The transmission / reception units 802a to 802l wirelessly transmit the information received from the central control device 100 via the wired communication lines by the line connection units 801a to 801l to each protection wireless device 200, and are transmitted wirelessly from each protection wireless device 200. The information is output to the line connection units 801a to 801l. The line connection units 801a to 801l transmit information input from the transmission / reception units 802a to 802l to the central control device 100 via a wired communication line.

  Specifically, the transmission / reception units 802a to 802l modulate transmission frequencies determined in advance by control signals and audio signals received from the central controller 100 by the line connection units 801a to 801l via a wired communication line, It transmits to the protection radio apparatus 200.

  In addition, the transmission / reception units 802a to 802l receive and demodulate radio waves transmitted by radio from each protective radio device 200 by modulating a predetermined frequency with a control signal and an audio signal, and send them to the line connection units 801a to 801l. Output. The line connection units 801a to 801l transmit information input from the transmission / reception units 802a to 802l to the central control device 100 via a wired communication line.

  The monitoring control units 803a to 803l monitor the operations of the own base stations 800a to 800l.

  The configuration of the protective radio device 200 will be described by taking the protective radio device 200a-1 mounted on the starting point side of the train 2a (mounted on the vehicle at the end near the starting point of the route on which the train 2a operates) as an example. Note that the protection radio device 200a-2 is mounted on the end point side of the train 2a (mounted on the end vehicle close to the end point of the route on which the train 2a is operated), and the protection radio is set on the start point side of the train 2b. The device 200b-1 is mounted, the protective radio device 200b-2 is mounted on the end point side of the train 2b, the protective radio device 200c-1 is mounted on the start point side of the train 2c, and the protective device is mounted on the end point side of the train 2c. It is assumed that the wireless device 200c-2 is installed.

  The protection radio device 200a-1 includes a control unit 220a-1, a call radio unit 230a-1, and a protection radio unit 240a-1. Note that an antenna (not shown) is connected to the call radio unit 230a-1 and the protection radio unit 240a-1 during normal operation.

  FIG. 2A is a block diagram illustrating a configuration example of the call radio unit 230a-1. The call radio unit 230a-1 includes a transmission / reception unit (result information transmission unit, response transmission unit) 231a-1 and a control unit 232a-1. The transmission / reception unit 231a-1 transmits / receives information to / from each transmission / reception unit 802 of each base station 800 by duplex communication under the control of the control unit 232a-1.

  The control unit 232a-1 is connected to an operation unit (for example, realized by a touch panel, not shown) operated by a train crew. And when the operation number which identifies the operation of a train is input into the operation part, control part 232a-1 outputs the operation number information which shows the input operation number to the transmission / reception part 231a-1. The transmission / reception unit 231a-1 transmits the operation number information to the central control device 100 via each base station 800. The on-board monitoring unit 140 of the central control device 100 registers the operation number received by the line connection unit 110 in the storage unit.

  FIG. 2B is a block diagram illustrating a configuration example of the protection wireless unit 240a-1. The protection system radio unit 240a-1 includes a transmission / reception unit (output unit, reception unit) 241a-1 and a control unit (device control unit) 242a-1. The alarm switch 243a-1 and the test switch 244a-1 are connected to the controller 242a-1. When the alarm switch 243a-1 is turned on, the control unit 242 outputs a protection signal, which is a signal used for protection radio, to the transmission / reception unit 241a-1. The transmission / reception unit 241a-1 issues a guard radio obtained by modulating a predetermined frequency with the guard signal via an antenna. And control part 242a-1 outputs the control signal which shows that the alerting | reporting of protection radio | wireless is stopped with respect to the transmission / reception part 241a-1, when OFF operation is made | formed by alerting | reporting switch 243a-1. The transmission / reception unit 241a-1 stops the reporting of the protection radio according to the control signal. In addition, the transmission / reception unit 241a-1 receives the protection radio signal issued by the other protection radio apparatus 200 via the antenna. The control unit 242a-1 may be capable of generating a test signal for testing.

  Further, the control unit 242a-1 of the protection system radio unit 240a-1 is configured so that the transmission / reception unit 231a-1 of the call system radio unit 230a-1 is in the center when the test switch 244a-1 is turned on (manual test). When the test start request transmitted from the control device 100 is received via each base station 800 (automatic test), the transmitter / receiver 241a-1 is instructed to execute the test operation.

  Next, the test operation of the protective radio device will be described by taking the protective radio unit 240a-1 as an example.

  When performing a test operation, the control unit 242a-1 of the protection system radio unit 240a-1 is based on a signal output end (connected to an antenna during normal operation) and a received radio wave with respect to the transmission / reception unit 241a-1. A control signal indicating that an input terminal (connected to an antenna during normal operation) is connected is output. When receiving the control signal, the transmission / reception unit 241a-1 sets the output end and the input end in an electrically connected state. Further, the output end and the input end are electrically disconnected from the antenna. Then, the transmission / reception unit 241a-1 outputs a non-modulated current of a predetermined frequency (the same frequency as that of the protection radio) to the output terminal with a predetermined power (the same power as that of the protection radio). . The current output to the output terminal is input to the input terminal, and the transmission / reception unit 241a-1 outputs, for example, data indicating received power based on the input current to the control unit 242a-1. The control unit 242a-1 determines that a failure has occurred in the protective radio device 200a-1 when the received power of the signal input to the input terminal does not reach the reference value. That is, it is confirmed whether or not a signal is output with power equal to or higher than a predetermined reference value (output power check), and when the power does not reach the reference value, the transmission system of the protection radio apparatus 200a-1 It is determined that a failure has occurred.

  Then, the control unit 242a-1 of the protection radio unit 240a-1 outputs a protection signal to the transmission / reception unit 241a-1 after the output power check is completed. The transmission / reception unit 241a-1 outputs the current modulated by the protection signal to the output terminal of the own transmission / reception unit 241a-1 with power lower than a predetermined power. The current output to the output terminal is input to the input terminal. That is, the current modulated by the own transmission / reception unit 241a-1 with the protection signal generated by the control unit 242a-1 is input to the transmission / reception unit 241a-1.

  The transmission / reception unit 241a-1 demodulates the input current and outputs the demodulated signal to the control unit 242a-1. The control unit 242a-1 checks whether the signal input from the transmission / reception unit 241a-1 is the same as the protection signal output to the transmission / reception unit 241a-1. This confirmation is the reception confirmation. The protection signal handled by the protection radio apparatus 200 in each train is the same signal. Therefore, by confirming the signal folded at the output terminal and the input terminal, it is possible to confirm whether or not a protection signal can be obtained when a protection radio signal issued by another protection radio apparatus 200 is received.

  The control unit 242a-1 of the protection system radio unit 240a-1 receives the protection signal output to the transmission / reception unit 241a-1 when the output power is not output as a result of the confirmation of the output power or as a result of the reception confirmation. When the same protection signal is not obtained, it is determined that there is a failure in the reception system of the protection radio device 200a-1, and result information indicating the failure is generated.

  The control unit 242a-1 of the protection system radio unit 240a-1 includes result information indicating the results of output power confirmation and reception confirmation, information indicating an operation number, and a position where the protection radio device 200a-1 is mounted. Information indicating whether it is mounted on the starting point side of the route in the train or on the end point side is output to the transmitting / receiving unit 231a-1 of the call radio unit 230a-1. The transmission / reception unit 231a-1 transmits the information input from the control unit 242a-1 to the central control device 100 via the base station 800.

  Next, operation | movement of the protection radio test system 1 of embodiment of this invention is demonstrated. FIG. 3 is a sequence diagram showing an operation of the protective radio test system 1 according to the embodiment of the present invention.

  In this example, an operation in a case where it is set to perform an automatic test once at a predetermined date and time will be described. The monitoring control unit 130 of the central control device 100 sets the operation number of the train in operation registered in the storage means of the on-board monitoring unit 140 as a test target when the predetermined date and time of the set automatic test comes. It requests | requires registering in the memory | storage means of the self-monitoring control part 130 as a train operation number (step S101).

  And the monitoring control part 130 of the central control apparatus 100 transmits the start request information which shows the start request | requirement of a test to the train corresponding to the operation number registered into the memory | storage means of the own monitoring control part 130 (step S102). Specifically, for example, the monitoring control unit 130 of the central control device 100 is connected to the base station (for example, the base station 800k) in the vicinity of the line connection unit 110 and the train (for example, the train 2a) having the smallest operation number. The protective radio apparatus 200a-1 (for example, the protective radio apparatus 200a) of the protective radio apparatus 200a-1 mounted on the starting point side of the train and the protective radio apparatus 200a-2 mounted on the end point side -1) Send start request information.

  The transmission / reception unit 231a-1 of the call radio unit 230a-1 in the protective radio apparatus 200a-1 that has received the transmitted start request information transmits response information indicating that the start request information has been received via the base station 800k. It transmits to the central controller 100 (step S103). The monitoring control unit 130 of the central control device 100 receives the response information via the base station 800k and the line connection unit 110.

  Then, the control unit 242a-1 of the protection system radio unit 240a-1 in the protection radio device 200a-1 causes the transmission / reception unit 241a-1 to perform a test operation (step S104).

  For example, the monitoring control unit 130 of the central control device 100 transmits the result information indicating the result of the test to the line connection unit 110 and the base station 800k when a predetermined time has elapsed after receiving the response information. The protection wireless device 200a-1 is requested through the step S105.

  The control unit 242a-1 of the protection system radio unit 240a-1 includes result information indicating the results of output power confirmation and reception confirmation, information indicating an operation number, and a position where the protection radio device 200a-1 is mounted ( For example, information indicating the origin side) is output to the transmission / reception unit 231a-1 of the call radio unit 230a-1. The transmission / reception unit 231a-1 transmits the information input from the control unit 242a-1 to the central control device 100 via the base station 800k (step S106).

  When the on-board monitoring unit 140 of the central control device 100 receives the result information indicating the abnormality, the on-vehicle monitoring unit 140 indicates the result information, the information indicating the operation number, and the position where the protective radio device 200a-1 is mounted. The information shown is transmitted to the command console controller 300. The command console control device 300 receives the information and outputs it to the display means. In this example, it is assumed that the on-board monitoring unit 140 of the central controller 100 has received result information indicating normality.

  The monitoring control unit 130 of the central control device 100 includes the other protection radio device 200a-1 among the protection radio devices 200a-1 and 200a-2 mounted on the start and end sides of the train. The start request information is transmitted to (for example, the protection wireless device 200a-2), and the processes of steps S102 to S106 are performed on the other protection wireless device 200a-2 on which the test operation has not been performed.

  When the test on the protection radio apparatuses 200a-1 and 200a-2 mounted on the train in which the operation number of the transmission destination of the start request information transmitted in the process of step S102 is set ends, the central control apparatus 100 The monitoring control unit 130 and the base station 800a in the vicinity of the train (for example, the train 2b) having the next smallest operation number after the line connection unit 110 and the operation number of the transmission destination of the start request information transmitted in the process of step S102. Then, start request information is transmitted to the protection radio apparatus 200b-1 mounted on the starting point side of the train (step S107).

  The monitoring control unit 130 of the central control device 100 transmits the start request information again when the response information to the transmitted start request information is not received within a predetermined time (for example, within 3 seconds) (step S108). .

  The monitoring control unit 130 of the central control device 100 further transmits start request information when response information for the retransmitted start request information is not received within a predetermined time (step S109).

  When the monitoring control unit 130 of the central control device 100 does not receive response information for the transmitted start request information within a predetermined time, the transmission destination train of the start request information moves to the garage, It is determined that it has moved to the railway company line (step S110).

  The monitoring control unit 130 of the central control device 100 is connected to the line connection unit 110 and the train (for example, the train 2c) having the smallest operation number after the operation number of the transmission destination of the start request information transmitted in the process of step S107. The start request information is transmitted to the protective radio apparatus 200c-1 mounted on the starting point side of the train via the nearby base station 800f (step S111).

  The transmission / reception unit 231c-1 of the call radio unit 230c-1 in the protection radio apparatus 200c-1 that has received the transmitted start request information transmits response information indicating that the start request information has been received via the base station 800f. It transmits to the central control apparatus 100 (step S112). The monitoring control unit 130 of the central control apparatus 100 receives the response information via the base station 800f and the line connection unit 110.

  Then, the control unit 242c-1 of the protection system radio unit 240c-1 in the protection radio device 200c-1 causes the transmission / reception unit 241c-1 to perform a test operation (step S113).

  For example, the monitoring control unit 130 of the central control device 100 transmits the result information indicating the result of the test to the line connection unit 110 and the base station 800k when a predetermined time has elapsed after receiving the response information. Through the protection wireless device 200c-1 (step S114).

  And the control part 242c-1 of the protection type | system | group radio | wireless part 240c-1 is the result information which shows the result of output power confirmation and reception confirmation, the information which shows an operation number, and the position where the said protection radio | wireless apparatus 200 is installed. The information shown is output to the transmission / reception unit 231c-1 of the call radio unit 230c-1. The transmission / reception unit 231c-1 transmits the information input from the control unit 242c-1 to the central control device 100 via the base station 800f (step S115).

  In this example, it is assumed that the on-board monitoring unit 140 of the central controller 100 has received result information indicating an abnormality. Then, the on-board monitoring unit 140 of the central control device 100 via the monitoring control unit 130, the result information, the information indicating the operation number, and the information indicating the position where the protective radio device 200c-1 is installed. Is transmitted to the command console controller 300 (step S116). The command console control device 300 outputs the received information to the display means. The display means displays the input information (step S117).

  According to this embodiment, since the test of the protection radio device 200 can be performed during the operation of the train, a failure of the protection radio device 200 can be found at an early stage. In addition, it is possible to discover a failure that occurred accidentally during train operation. This is because the output function and the reception function of the protection radio apparatus 200 can be tested without reporting the protection radio via the antenna.

  Further, since the result information indicating the failure (abnormality) is displayed on the display means of the command console control device 300, the person in charge at the railway company can confirm that any of the protective radio devices 200 has failed and which of the protective radio devices. It is possible to quickly recognize whether 200 has failed.

  In addition, since the test is performed using the protection signal that is used when an accident or the like actually occurs without using the test signal, it is possible to perform a test according to the actual operation. In addition, when performing a test using the protective signal used in actual operation, the protective radio device controls the protective radio so that the current modulated by the protective signal output to the output terminal is folded back to the input terminal. Since it does not report outside the wireless device, it will not interfere with the operation of other trains.

  In addition, the protection radio apparatus 200 can be tested in any time zone by setting the test start time to morning or evening rush hour, or to a time zone during which a late-night train is not operating. it can. In this embodiment, the test can be performed so as not to hinder the operation of other trains, so the test start time is set in a time zone where other trains such as rush hour in the morning and evening are close to each other. Even if it is set, there is no possibility that the operation of other trains will be hindered.

  The protection radio apparatus 200 installed in the station is set with a number that can be identified as being different from the operation number set in the protection radio apparatus 200 mounted on the train. When the response to the test start request is not received within a predetermined time from the protection radio device 200 installed in the station, the monitoring control unit 130 determines that the protection radio device 200 is out of order. Also good. When the monitoring control unit 130 determines that a failure has occurred, the monitoring control unit 130 transmits the result information and information indicating the number set in the protection radio device 200 to the command console control device 300, This information may be displayed on the display means.

  The protective radio apparatus 200 includes time information generation means for generating time information indicating the current time, and the time indicated by the time information generated by the time information generation means is a preset test time (for example, every hour 0 minutes or 10 minutes per hour), the test operation may be performed. FIG. 4 is an explanatory diagram showing a configuration example of the protective radio apparatus 200.

  In the example shown in FIG. 4, a controller 900 having a receiver 901 that transmits and receives a voice signal to and from the central controller 100 is connected to the protective radio apparatus 200 via a call radio unit 230. In the example shown in FIG. 4, the control unit 220 includes a time information generation unit (clock function), and has a memory function of storing operation number data indicating an operation number in the storage unit. In the example shown in FIG. 4, the controller 900 is provided with a notification switch 243 (shown as “protection” in FIG. 4), a test switch 244, and a lamp 902 that is turned on when a failure occurs.

  In the case of such a configuration, the test of the plurality of protection radio apparatuses 200 can be performed at the same time, so that the time required for the test of the plurality of protection radio apparatuses 200 can be shortened.

  When the protection radio device 200 is configured to transmit time information together with result information indicating the result of the test operation, a person in charge of the railway company operating the maintenance terminal 600 determines the result based on the time information. Information can be searched and the latest information can be browsed easily.

  In the present embodiment, the monitoring control unit 130 of the central control device 100 is configured to transmit the start request information again when the response information for the start request information is not received within a predetermined time. However, the monitoring control unit 130 of the central control device 100 is configured to transmit the start request information to the other protective radio device 200 when the response information to the start request information is not received within a predetermined time. May be. And after making all the protection radio | wireless apparatuses 200 perform test operation | movement, you may be comprised so that start request information may be transmitted again to the protection radio | wireless apparatus 200 which did not receive response information within predetermined time. .

  Next, the outline of the present invention will be described. FIG. 5 is a block diagram showing an outline of the present invention. The protection radio system according to the present invention includes a protection radio device 50 and a central controller 51 that controls the protection radio device 50.

  In response to the instruction, the protection radio device 50 receives and demodulates the output means 52 that outputs a signal modulated by the protection signal to the output terminal and the signal input to the input terminal that inputs a signal based on the received radio wave. Receiving means 53, output means 52, and device control means 54 for controlling the receiving means 53. The central control device 51 includes control means 55 for instructing the protection wireless device 50 to start a test operation, The device control means 54 performs control for electrically connecting the output end of the output means 52 and the input end of the receiving means 53 in response to an instruction to start the test operation by the control means 55 of the central control device 51, and outputs An instruction to output a signal modulated by the protection signal is given to the means 52, and it is determined whether or not the signal demodulated by the receiving means 53 based on the signal input to the input terminal matches the protection signal, and the receiving means 53 If the signal demodulated based on the input signal to the force terminal does not match the protection signal, it determines that a failure has occurred.

  In the case of such a configuration, since the test of the protection radio device 50 can be performed during the operation of the train, the failure of the protection radio device 50 can be found at an early stage. In addition, it is possible to discover a failure that occurred accidentally during train operation.

  Further, the apparatus control means 54 performs control to electrically connect the output end of the output means 52 and the input end of the receiving means 53, and then instructs the output means 52 to output an unmodulated signal, and outputs When the means 52 is instructed to output an unmodulated signal, the unmodulated signal is output to the output terminal at a predetermined output power, and the device control means 54 receives the signal input to the input terminal. It may be configured to determine that a failure has occurred when the power does not reach the reference value.

  In the case of such a configuration, a failure in the transmission system of the protection radio device 50 can be detected.

  In the above embodiment, it is also disclosed that the control means 55 of the central control device 51 instructs a plurality of protective radio devices to start a test operation in order. In such a configuration, in a system that performs communication using a duplex system, it is possible to prevent complications due to information being transmitted from a plurality of protection radio apparatuses. In addition, it is possible to perform a test without omission on a plurality of protective radio devices.

  In the above embodiment, the protection wireless device 50 includes result information transmitting means for transmitting result information indicating the determination result of the device control means 54 to the central control device 51, and the central control device 51 includes the protection wireless device. When the result information transmitted by the result information transmitting unit 50 indicates that the protective radio device 50 is out of order, the display unit displays information indicating that the protective radio device 50 is out of order. It is also disclosed.

  In such a configuration, the person in charge of the railway company can quickly recognize that the protective radio device 50 has failed.

  Further, in the above embodiment, when the protection wireless device 50 receives an instruction to start a test operation by the central control device 51, the response transmission that transmits a response indicating that the instruction has been received to the central control device 51. The control means 55 of the central controller 51 receives the response transmitted by the response transmitting means of the protective radio device 50 until a predetermined time elapses after instructing the protective radio device 50 to start the test operation. It is also disclosed to instruct the protective radio apparatus to start a test operation again when it does not.

  In such a configuration, even if the protective radio device 50 cannot receive an instruction to start the test operation for some reason, such as when the train is in a tunnel, the start of the test operation is started again. A test operation can be performed in response to the instruction.

  The above embodiment also discloses that the output means 52 of the protective radio device 50 performs the test operation at a preset date and time.

  In the case of such a configuration, the test of the plurality of protection radio apparatuses can be performed at the same time, so that the time required for the test of the plurality of protection radio apparatuses can be shortened.

  The present invention can be used for failure determination in terminals of a protective radio device and a mobile communication system.

DESCRIPTION OF SYMBOLS 1 Protective radio system 2 Train 50 Protective radio equipment 51 Central control apparatus 52 Output means 53 Reception means 54 Apparatus control means 55 Control means 100 Central control apparatus 110 Line connection part 120 Zone control part 130 Monitoring control part 140 On-board monitoring part 150 Operation Unit 160 console control unit 200 protection radio device 220 control unit 230 communication radio unit 231 transmission / reception unit 232 control unit 240 protection radio unit 241 transmission / reception unit 242 control unit 243 alarm switch 244 test switch 300 command console control device 400 maintenance server 500 Command console operation device 600 Maintenance terminal 700 On-line display device 800 Base station 900 Controller 901 Handset

Claims (7)

A protective radio device that issues a protective radio, and
A central control unit including control means for instructing the protection radio device to start a test operation ;
The protective radio device is
An output means for outputting the protection radio from the output end connected to the antenna ;
Receiving means for receiving a protection radio at the input end connected to the antenna ;
Device control means for controlling the output means and the receiving means,
Before Symbol device control means, in accordance with an instruction of the start of the test operation by said control means, electrically connected to said input end and said output end, electrically and said input end and said output end from said antenna Control to disconnect
A process of outputting an unmodulated signal with specified power via the output means, and determining that a failure has occurred when the received power of the signal received by the receiving means is less than a reference value, and outputting the determination result When,
Output protection signals to the front Symbol output unit, when the received signal and the protection signal does not match from the receiving unit, determines that a fault has occurred, performing the process of outputting the determination result Protective radio system characterized by Control means of the central control unit, a plurality of protection radio device, protection wireless system of claim 1, wherein instructing the start of the test operation in order. The protective radio device includes result information transmission means for transmitting result information indicating the determination result of the device control means to the central control device,
The central control device displays information indicating that the protective radio device has failed when the result information transmitted by the result information transmitting means indicates that the protective radio device has failed. The protective radio system according to claim 1, further comprising display means for performing the operation. When the protection radio apparatus receives an instruction to start a test operation by the central control apparatus, the protection radio apparatus includes a response transmission unit that transmits a response indicating that the instruction has been received to the central control apparatus,
The control means of the central control apparatus did not receive the response transmitted by the response transmission means of the protective radio apparatus until a predetermined time has elapsed after instructing the protective radio apparatus to start a test operation. The protection radio system according to any one of claims 1 to 3 , wherein the protection radio apparatus is instructed again to start a test operation. The protection radio system according to any one of claims 1 to 4 , wherein the output means and the reception means of the protection radio apparatus perform a test operation at a preset date and time. An output means for outputting the protection radio from the output end connected to the antenna ;
Receiving means for receiving a protection radio at the input end connected to the antenna ;
Device control means for controlling the output means and the receiving means,
The device control means includes
When performing a test, the output terminal and the input terminal are electrically connected, and the output terminal and the input terminal are electrically disconnected from the antenna.
A process of outputting an unmodulated signal with specified power via the output means, and determining that a failure has occurred when the received power of the signal received by the receiving means is less than a reference value, and outputting the determination result When,
Output protection signals to the front Symbol output unit, when the received signal and the protection signal does not match from the receiving unit, determines that a failure has occurred, and a process of outputting the determination result A protective radio device characterized by that. A method for determining a failure of a protective radio device that issues a protective radio,
A step of electrically connecting, disconnecting said input terminal and said output terminal to said antenna and electrically to an output end connected to the antenna and the input end being connected with said antenna in said protection radio device,
Outputting a non-modulated signal to the output terminal with a specified power, and determining that a failure has occurred when the received power of the signal input to the input terminal is less than a reference value, and outputting the determination result; ,
Characterized in that it comprises when outputting the protection signal to the output terminal, a signal received from the entering force end and protection signals do not match, it determines that the failure has occurred, and outputting the determination result A failure determination method for a protective radio device.

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