WO2023157245A1 - Train radio communication system - Google Patents

Train radio communication system Download PDF

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Publication number
WO2023157245A1
WO2023157245A1 PCT/JP2022/006698 JP2022006698W WO2023157245A1 WO 2023157245 A1 WO2023157245 A1 WO 2023157245A1 JP 2022006698 W JP2022006698 W JP 2022006698W WO 2023157245 A1 WO2023157245 A1 WO 2023157245A1
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WO
WIPO (PCT)
Prior art keywords
station device
base station
communication
message
central
Prior art date
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PCT/JP2022/006698
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French (fr)
Japanese (ja)
Inventor
智行 田辺
Original Assignee
三菱電機株式会社
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2022/006698 priority Critical patent/WO2023157245A1/en
Priority to JP2024500868A priority patent/JPWO2023157245A5/en
Publication of WO2023157245A1 publication Critical patent/WO2023157245A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/06—Testing, supervising or monitoring using simulated traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present disclosure relates to a train radio communication system, and more particularly to a method for checking the functional integrity of central office equipment.
  • a train radio communication system communication between a central station and an on-board mobile station is performed via a base station, which converts between wired communication and wireless communication.
  • a radio communication device corresponding to a mobile station device is used as a counterpart device in a test for confirming functional soundness of voice communication, data communication, etc. of a central station device. Therefore, in the test of the central station equipment of the conventional train radio communication system, the opposing equipment must be located in a place where it can communicate with the base station equipment, and is subject to geographical restrictions.
  • the present disclosure has been made to solve the above problems, and aims to provide a train radio communication system capable of testing a central office device without being subject to geographical restrictions. aim.
  • a train radio communication system includes: a mobile station device mounted on a train; a central station device installed on the ground; and a base station device for transferring telegrams transmitted from the mobile station device to the central station device, wherein when the central station device is tested, the base station device receives from the central station device Switch the forwarding destination of the message sent to the counterpart device for testing.
  • FIG. 1 is a configuration diagram of a train radio communication system according to Embodiment 1;
  • FIG. 2 is a block diagram of a central office apparatus according to Embodiment 1;
  • FIG. 2 is a block diagram of a new base station apparatus according to Embodiment 1;
  • FIG. 2 is a block diagram of a mobile station apparatus according to Embodiment 1;
  • FIG. 1 is a block diagram of a facing device according to Embodiment 1;
  • FIG. 4 is a sequence diagram showing the operation of the train radio communication system according to Embodiment 1;
  • FIG. 2 is a configuration diagram of a train radio communication system according to Embodiment 2;
  • FIG. 8 is a block diagram of a central office apparatus according to Embodiment 2;
  • FIG. 1 is a configuration diagram of a train radio communication system according to Embodiment 1.
  • a train radio communication system according to Embodiment 1 includes a central station device 10 installed at a central station on the ground, a base station device 20 installed at a base station on the ground, and a mobile station mounted on a train, which is a mobile station. It includes a station device 30 and a counterpart device 40 used for a soundness test (hereinafter sometimes simply referred to as “test”) of the central station device 10 .
  • the base station device 20 includes a new base station device 20N newly introduced into the train radio communication system according to Embodiment 1 and an old base station device 20L that has not been updated from the conventional system. good too.
  • Communication between the central station device 10 and the base station device 20 is performed by the first communication method, which is a conventional wired section communication method.
  • Communication between the base station apparatus 20 and the mobile station apparatus 30 is performed by the second communication method, which is a conventional wireless section communication method.
  • Opposing device 40 communicates with new base station device 20N of base station devices 20, and communication between new base station device 20N and opposing device 40 is based on a newly added wired section communication method. It is performed by a certain third communication method.
  • the train radio communication system has one central office in which the central office device 10 is installed.
  • the central office has a control room that manages train operation, and the dispatcher can use the command telephone in the control room to make calls to and receive calls from the train crew.
  • there is a maintenance terminal for the train radio communication system in the command room and the dispatcher can use the maintenance terminal to monitor and control the states of the central station device 10, the base station device 20, and the mobile station device 30. can.
  • the new base station device 20N of the base station devices 20 controls not only the communication between the central station device 10 and the mobile station device 30 but also the communication between the central station device 10 and the correspondent device 40.
  • FIG. Therefore, the new base station apparatus 20N can perform mutual conversion between communication according to the first communication system and communication according to the third communication system in addition to mutual conversion between communication according to the first communication system and communication according to the second communication system. It is possible.
  • the old base station device 20L controls only communication between the central station device 10 and the mobile station device 30.
  • FIG. Therefore, the old base station device 20L performs only mutual conversion between the communication of the first communication method and the communication of the second communication method.
  • base station device 20 in the following description is assumed to be the new base station device 20N.
  • a mobile station device 30 for communicating with the central station device 10 is mounted on the train.
  • a train crew member can use a control panel provided in the mobile station device 30 to communicate with a dispatcher who operates the central station device 10 of the central station.
  • a first communication scheme and a second communication scheme are used for communication between the central office apparatus 10 and the mobile station apparatus 30 .
  • the counterpart device 40 is a test device used for the soundness test of the central office device 10 and is a pseudo mobile station device having the same functions as the mobile station device 30 .
  • the correspondent device 40 is connected to the base station device 20 .
  • a first communication method and a third communication method are used for communication between the central office device 10 and the opposite device 40 .
  • FIG. 2 is a block diagram of the central office device 10.
  • the central office device 10 includes a call control section 11 , a monitor control section 12 and a communication control section 13 .
  • the call control unit 11 controls the command telephone. For example, the call control unit 11 instructs the communication control unit 13 to make a call to the base station device 20 according to the operation of the command telephone by the dispatcher. Also, the call control unit 11 controls the command telephone according to the signal received by the communication control unit 13 from the base station device 20 .
  • the monitoring control unit 12 controls maintenance terminals.
  • the monitor control unit 12 monitors and controls the base station device 20 and the mobile station device 30 via the communication control unit 13 according to the operation of the maintenance terminal by the commander, and operates the maintenance terminal according to the result. Control.
  • FIG. 3 is a block diagram of the base station device 20.
  • the base station device 20 has a communication control section 21 , a multiplexing section 22 and a radio communication section 23 .
  • the communication control unit 21 terminates wired communication with the central office device 10 and the opposite device 40 .
  • the communication control unit 21 can switch between transferring a telegram from the central office device 10 to the mobile station device 30 and transferring it to the opposite device 40 (the telegram from the central office device 10 is transferred to the opposite device 40). Forwarding is sometimes called “wrapping”).
  • the communication control unit 21 has “return registration information” (“to the opposite device 40 ), and the communication control unit 21 transmits the message received from the central office device 10 to the opposite device 40 in a state where the return registration information is not registered.
  • the communication control unit 21 transmits telegrams received from the multiplexing unit 22 or the opposite device 40 to the central office device 10 .
  • the multiplexing unit 22 multiplexes a plurality of messages received from the communication control unit 21 and transmits the multiplexed messages to the wireless communication unit 23 in the form of wireless frames.
  • the multiplexing unit 22 also separates the radio frame received from the radio communication unit 23 into a plurality of electronic messages, and transmits the separated plural electronic messages to the communication control unit 21 .
  • the wireless communication unit 23 terminates wireless communication with the mobile station device 30. Specifically, radio communication section 23 transmits the radio frame received from multiplexing section 22 to mobile station apparatus 30 . Also, the radio communication unit 23 transmits the radio frame received from the mobile station device 30 to the multiplexing unit 22 .
  • FIG. 4 is a block diagram of the mobile station device 30.
  • the mobile station device 30 includes a radio communication section 31 , a multiplexing section 32 , a call control section 33 , a terminal control section 34 and a voice control section 35 .
  • the wireless communication unit 31 terminates wireless communication with the base station device 20. Specifically, the radio communication unit 31 transmits the radio frame received from the base station device 20 to the multiplexing unit 32 . Also, the radio communication unit 31 transmits the radio frame received from the multiplexing unit 32 to the base station device 20 .
  • the multiplexing unit 32 separates the radio frame received from the radio communication unit 31 into a plurality of electronic messages, and transmits the separated plural electronic messages to the call control unit 33, the terminal control unit 34, or the voice control unit 34 according to the contents of the electronic messages. 35.
  • the multiplexing unit 32 multiplexes a plurality of messages received from the call control unit 33, the terminal control unit 34, or the voice control unit 35, and transmits the multiplexed messages to the wireless communication unit 31 in the form of wireless frames.
  • the call control unit 33 manages call states with other stations via the terminal control unit 34 and the wireless communication unit 31.
  • the audio control unit 35 decodes the audio signal received from the multiplexing unit 32, and transmits the decoded audio signal to the operation panel via the terminal control unit 34. Also, the voice control unit 35 encodes voice signals received from the operation panel via the terminal control unit 34, and transmits the encoded voice signals to other stations via the multiplexing unit 32 and the wireless communication unit 31. .
  • the terminal control unit 34 controls the operation panel. For example, the terminal control unit 34 receives a call from the call control unit 33 and instructs the operation panel to receive a call. Also, the terminal control unit 34 receives a call from the operation panel and transmits the call to another station via the call control unit 33 .
  • FIG. 5 is a block diagram of the opposing device 40.
  • the counterpart device 40 includes a communication control section 41 , a monitor control section 42 , a call control section 43 , a voice control section 44 and an operation section 45 .
  • the communication control unit 41 terminates wired communication with the base station device 20 . Specifically, the communication control unit 41 transmits a message received from the base station device 20 to the monitor control unit 42, the call control unit 43, or the voice control unit 44 according to the content of the message. The communication control unit 41 also transmits messages received from the monitor control unit 42 , the call control unit 43 or the voice control unit 44 to the base station device 20 .
  • the monitor control unit 42 generates failure and status information used in the test, and transmits the generated information to the communication control unit 41 .
  • the call control unit 43 manages call states with other stations via the operation unit 45 and the communication control unit 41.
  • the audio control unit 44 decodes the audio signal received from the base station device 20 and sends the decoded audio signal to the operation unit 45 . It also encodes an audio signal input from the operation unit 45 and transmits the encoded audio signal to the communication control unit 41 .
  • the operation unit 45 is an operation interface corresponding to an operation panel, and instructs the call control unit 43 to make a call to another station in response to a call from the command telephone.
  • FIG. 6 is a sequence diagram showing the operation of the train radio communication system according to the first embodiment. The operation of the train radio communication system according to Embodiment 1 will be described below based on FIG.
  • Communication is performed between the mobile station device 30 and the central station device 10 when the return registration information for the opposite device 40 is not registered in the communication control unit 21 of the base station device 20 . That is, the message transmitted by the mobile station apparatus 30 using the second communication method is received by the base station apparatus 20, and the base station apparatus 20 transfers it to the central office apparatus 10 using the first communication method (step ST101). Also, the telegram transmitted by the central station apparatus 10 in the first communication method is received by the base station apparatus 20, and the base station apparatus 20 transfers it to the mobile station apparatus 30 in the second communication method (step ST102).
  • the wireless communication unit 31 of the mobile station device 30 transmits a message in the form of a wireless frame to the wireless communication unit 23 of the base station device 20 using the second communication method.
  • the radio communication unit 23 of the base station device 20 transmits the received radio frame to the multiplexing unit 22, and the multiplexing unit 22 separates the message from the radio frame.
  • the multiplexing unit 22 transmits the separated messages to the communication control unit 21 . Since the return registration information is not registered, the communication control unit 21 determines that the telegram is addressed to the central office device 10 and transfers the telegram to the communication control unit 13 of the central office device 10 .
  • the communication control section 13 of the central office device 10 transmits a message to the communication control section 21 of the base station device 20 using the first communication method. Since the return registration information is not registered, the communication control unit 21 of the base station device 20 determines that the received message is addressed to the mobile station device 30 and transmits the message to the multiplexing unit 22 . The multiplexing unit 22 multiplexes the message and transmits it to the wireless communication unit 23 in the form of a wireless frame. The radio communication unit 23 transmits the radio frame to the radio communication unit 31 of the mobile station device 30 using the second communication method.
  • the opposing device 40 transmits to the base station device 20 a telegram indicating return registration to the opposing device 40 using the third communication method.
  • the base station device 20 receives the message indicating return registration from the opposite device 40, it changes the transfer destination of the message received from the central station device 10 from the mobile station device 30 to the opposite device 40 for testing (step ST103). This makes it possible to test the central office equipment 10 using the counterpart equipment 40 .
  • step ST103 the monitor control unit 42 of the opposed device 40 transmits to the communication control unit 41 a message indicating return registration to the opposed device 40 .
  • the communication control unit 41 transmits the message to the communication control unit 21 of the base station device 20 .
  • the communication control unit 21 of the base station device 20 registers the return registration information, thereby setting the transfer destination of the telegram received from the central office device 10 to the opposite device 40 for testing. switch.
  • the counterpart device 40 transmits a message to the base station device 20 using the third communication method.
  • the message transmitted from the opposite device 40 is received by the base station device 20, and the base station device 20 transfers it to the central office device 10 by the first communication method (step ST104).
  • step ST104 the communication control section 41 of the opposite device 40 transmits a message to the communication control section 21 of the base station device 20 using the third communication method. Since the return registration information is being registered, the communication control unit 21 of the base station device 20 transmits the message to the communication control unit 13 of the central station device 10 using the first communication method.
  • step ST105 when a message is transmitted from the mobile station device 30 by the second communication method, the message is received by the base station device 20, but the base station device 20 does not transfer it to the central station device 10. Discard (step ST105).
  • step ST105 the wireless communication unit 31 of the mobile station device 30 transmits a message to the wireless communication unit 23 of the base station device 20 using the second communication method.
  • the radio communication unit 23 of the base station device 20 transmits the received radio frame to the multiplexing unit 22, and the multiplexing unit 22 separates the message from the radio frame.
  • the multiplexing unit 22 transmits the separated messages to the communication control unit 21 . Since the return registration information is being registered, the communication control unit 21 discards the received message.
  • step ST106 when the central office device 10 transmits a telegram in the first communication method, the telegram is received by the base station device 20, and the base station device 20 transfers it to the opposite device 40 in the third communication method.
  • step ST106 the communication control section 13 of the central office device 10 transmits a message to the communication control section 21 of the base station device 20 using the first communication method. Since the return registration information is being registered, the communication control unit 21 of the base station device 20 determines that the message is addressed to the opposite device 40, and sends the message to the communication control unit 41 of the opposite device 40 using the third communication method. transfer.
  • steps ST104 and ST106 Through the processing of steps ST104 and ST106, it becomes possible to perform a call test between the command telephone of the central office equipment 10 and the opposite equipment 40, and a test of monitoring the status of the opposite equipment 40 from the maintenance terminal. can be confirmed.
  • the base station apparatus 20 does not transfer the message from the mobile station apparatus 30 to the central station apparatus 10. communication between the mobile station apparatus 30 and the central office apparatus 10 is not performed.
  • the counterpart device 40 transmits a telegram meaning stop calling back to the base station device 20 using the third communication method.
  • the base station device 20 Upon receiving the telegram indicating the stop of the return, the base station device 20 returns the transfer destination of the telegram from the central station device 10 to the mobile station device 30 (step ST107).
  • the mobile station device 30 can be on-line with the base station device 20, and communication between the mobile station device 30 and the central station device 10 becomes possible.
  • the opposing device 40 becomes unusable.
  • step ST107 the monitor control unit 42 of the counterpart device 40 transmits a message to the communication control unit 41 indicating that the return is to be stopped.
  • the communication control unit 41 transmits the message to the communication control unit 21 of the base station device 20 .
  • the communication control unit 21 of the base station device 20 receives the message indicating stop of return, it cancels the registration of the return registration information, thereby switching the transfer destination of the message from the central station device 10 to the mobile station device 30. .
  • the above test can be performed for each of the plurality of base station devices 20.
  • the test of the central station device 10 in the train radio communication system according to Embodiment 1 is performed by the base station device 20 returning the message from the central station device 10 to the opposite device 40. Therefore, in the test , the second communication method, which is a wireless communication method, is not used, and only the first and third communication methods, which are wire communication methods, are used. Therefore, the central office device 10 can be tested without being subject to geographical restrictions.
  • Embodiment 2 the communication between the central station device 10 and the new base station device 20N is the same as the communication between the central station device 10 and the old base station device 20L, using the conventional wired section communication method. A certain first communication method is used. Therefore, the operation mode of the new base station device 20N that returns the message from the central office device 10 to the mobile station device 30 and the operation of the new base station device 20N that returns the message from the central office device 10 to the opposite device 40 for testing It was necessary to switch between modes exclusively.
  • a new fourth communication method capable of specifying the destination of a telegram is introduced.
  • 40 also employs a communication system capable of designating the destination of the electronic message.
  • the base station device 20 can dynamically switch between forwarding the message from the central station device 10 to the mobile station device 30 and returning it to the opposite device 40 .
  • FIG. 7 is a configuration diagram of the train radio communication system according to the first embodiment.
  • communication between the central station device 10 and the new base station device 20N is performed by the newly added fourth communication method.
  • Other configurations are the same as in FIG.
  • FIG. 8 is a block diagram of the central office device 10 according to the second embodiment.
  • the communication control section 13 has a train radio protocol management section 131 and a general protocol management section 132 .
  • the train radio protocol management unit 131 manages transmission and reception of telegrams within the train radio communication system, identifies the destination of the received telegram, and assigns an identifier for identifying the destination to the telegram transmitted by the central office device 10. do.
  • the general-purpose protocol management unit 132 manages general-purpose protocols such as TCP/IP.
  • FIG. 9 is a block diagram of the new base station apparatus 20N according to Embodiment 2.
  • the communication control section 21 has a train radio protocol management section 211 and a general-purpose protocol management section 212 .
  • the train radio protocol management unit 211 manages the transmission and reception of telegrams within the train radio communication system, identifies the destination of the received telegram, and switches the transfer destination of the telegram according to the destination.
  • a general-purpose protocol management unit 212 manages general-purpose protocols such as TCP/IP.
  • FIG. 10 is a block diagram of the facing device 40 according to the second embodiment.
  • the communication control section 41 has a train radio protocol management section 411 and a general protocol management section 412 .
  • the train radio protocol management unit 411 manages transmission and reception of telegrams within the train radio system, identifies the destination of the received telegram, and assigns an identifier for identifying the destination to the telegram transmitted by the opposing device 40 .
  • a general-purpose protocol management unit 412 manages general-purpose protocols such as TCP/IP.
  • FIG. 11 is a diagram showing a data format used in communication between the central station device 10 and the new base station device 20N in the second embodiment.
  • the application data is data generated by the call control unit 11 and the monitor control unit 12 of the central office device 10 or the monitor control unit 12 and the call control unit 33 of the mobile station device 30 .
  • the train radio protocol header is assigned and interpreted by the train radio protocol management unit 131 of the central station device 10, the train radio protocol management unit 211 of the new base station device 20N, or the train radio protocol management unit 411 of the opposite device 40.
  • the train radio protocol header includes application type, destination, and extended information. Identifiers for respectively identifying the mobile station device 30 and the correspondent device 40 are set in the destination, and the central office device 10 interprets the destination of the train radio protocol header attached to the received telegram to determine the destination. It is possible to determine the forwarding destination of the telegram.
  • the general-purpose protocol header is assigned and interpreted by the general-purpose protocol management unit 132 of the central office device 10 or the general-purpose protocol management unit 212 of the new base station device 20N.
  • Information indicating a general-purpose protocol such as a UDP header or an IP header is set in the general-purpose protocol header.
  • FIG. 12 is a sequence diagram showing the operation of the train radio communication system according to the second embodiment.
  • the operation of the train radio communication system according to the second embodiment will be described below with reference to FIG. Again, to simplify the explanation, it is assumed that all base station devices 20 are new base station devices 20N. Therefore, the “base station device 20” in the following description is assumed to be the new base station device 20N.
  • the central office device 10 sets the identifier of the mobile station device 30 as the destination of the train radio protocol header of the message transmitted by the fourth communication method. Also, the base station device 20 sets the central station device 10 as the destination of the train radio protocol header of the message received from the mobile station device 30 . Therefore, when the message transmitted by the mobile station device 30 in the second communication method is received by the base station device 20, the base station device 20 transfers it to the central office device 10 in the fourth communication method (step ST201). Also, when the message transmitted by the central station device 10 in the fourth communication method is received by the base station device 20, the base station device 20 transfers it to the mobile station device 30 in the second communication method (step ST202).
  • the counterpart device 40 transmits a telegram addressed to the base station device 20, which means return registration, using the third communication method.
  • the base station device 20 registers the identifier of the opposite device 40 as the transfer destination of the message received from the central station device 10 (step ST203).
  • the base station device 20 can transfer the message received from the central office device 10 to the opposite device 40, and the central office device 10 can be tested using the opposite device 40.
  • the monitor control unit 42 of the opposing device 40 transmits a message indicating return registration to the train radio protocol management unit 411.
  • the train radio protocol management unit 411 sets the destination of the train radio protocol header to the base station device 20 and transmits the message to the general protocol management unit 412 .
  • the general-purpose protocol management unit 412 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 .
  • the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 411 .
  • the train radio protocol management unit 411 interprets the message because the destination of the train radio protocol header of the message is the base station device 20 .
  • the train radio protocol management unit 411 interprets the telegram to mean return registration, it recognizes that the opposite device 40 is on the train.
  • the counterpart device 40 transmits a message to the base station device 20 using the third communication method.
  • the base station device 20 sets the identifier of the central office device 10 in the train radio protocol header, and transmits the telegram to the central station using the fourth communication method. It is transferred to station apparatus 10 (step ST204).
  • step ST204 the call control unit 43 of the counterpart device 40 transmits a telegram to the train radio protocol management unit 411.
  • the train radio protocol management unit 411 sets the destination of the train radio protocol header to the central office device 10 and transmits the message to the general protocol management unit 412 .
  • the general-purpose protocol management unit 412 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 .
  • the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 211 .
  • the train radio protocol management unit 211 sets the destination of the train radio protocol header to the central office device 10 and transmits the telegram to the general-purpose protocol management unit 212. do.
  • the general-purpose protocol management unit 212 transmits the message to the general-purpose protocol management unit 132 of the central office device 10 . As a result, the message transmitted by the counterpart device 40 is received by the central office device 10 .
  • the base station device 20 when a telegram is transmitted from the mobile station device 30 in the second communication method during the test, if the telegram is received by the base station device 20, the base station device 20 will sets the identifier of the central office device 10 as the destination of the train radio protocol header, and transfers the message to the central office device 10 by the fourth communication method (step ST205).
  • the radio communication section 31 of the mobile station device 30 transmits a message in the form of a radio frame to the radio communication section 23 of the base station device 20 using the second communication method.
  • the radio communication unit 23 of the base station device 20 transmits the received radio frame to the multiplexing unit 22, and the multiplexing unit 22 separates the message from the radio frame.
  • the multiplexing unit 22 transmits the separated messages to the train radio protocol management unit 211 .
  • the train radio protocol management unit 211 determines that all telegrams received from the multiplexing unit 22 are addressed to the central office device 10, sets the destination of the train radio protocol header to the central office device 10, and sends the message to the general-purpose protocol management unit 212.
  • the general-purpose protocol management unit 212 transmits the message to the general-purpose protocol management unit 212 of the central office device 10 .
  • the message transmitted by the mobile station device 30 is received by the central office device 10 .
  • the above step ST101 is also implemented by the same processing.
  • the central office device 10 transmits a telegram addressed to the counterpart device 40
  • the central office device 10 sets the identifier of the counterpart device 40 to the destination of the train radio protocol header of the telegram to be transmitted, and is transmitted by the fourth communication method.
  • base station apparatus 20 transfers it to opposite apparatus 40 using the third communication method (step ST206).
  • the train radio protocol management section 131 of the central office device 10 sets the destination of the train radio protocol header to the counterpart device 40 and transmits the message to the general-purpose protocol management section 132.
  • the general-purpose protocol management unit 132 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 .
  • the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 211 .
  • the train radio protocol management unit 211 sets the destination of the train radio protocol header to the counterpart device 40 because the destination of the train radio protocol header of the message is the counterpart device 40 and the counterpart device 40 is on the train.
  • to the general-purpose protocol management unit 212 transmits the message to the general-purpose protocol management unit 412 of the counterpart device 40 .
  • the message sent by the central office device 10 to the opposite device 40 is received by the opposite device 40 .
  • the central office device 10 transmits a telegram addressed to the mobile station device 30, the central office device 10 sets the destination of the train radio protocol header of the telegram to be transmitted in the same manner as when the test is not performed. is set to the identifier of the mobile station apparatus 30, and the message is transmitted by the fourth communication method.
  • base station apparatus 20 transfers it to mobile station apparatus 30 using the second communication method (step ST207).
  • step ST207 the train radio protocol management section 131 of the central office device 10 sets the destination of the train radio protocol header to the mobile station device 30 and transmits the message to the general protocol management section 132.
  • the general-purpose protocol management unit 132 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 .
  • the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 211 .
  • the train radio protocol management unit 211 transmits the message to the multiplexing unit 22 because the destination of the train radio protocol header of the message is the mobile station device 30 .
  • the multiplexing unit 22 multiplexes the received message and transmits it to the wireless communication unit 23 in the form of a wireless frame.
  • the radio communication unit 23 transmits the radio frame to the radio communication unit 31 of the mobile station device 30 using the second communication method.
  • the telegram addressed to the mobile station device 30 transmitted by the central office device 10 is received by the mobile station device 30 in the form of a radio frame.
  • the above step ST102 is also implemented by the same processing.
  • step ST204 and ST206 a communication test between the command telephone of the central office equipment 10 and the opposite equipment 40 and a test of status monitoring of the opposite equipment 40 from the maintenance terminal are possible, and the functional soundness of the central office equipment 10 is confirmed. be able to.
  • base station apparatus 20 can transfer telegrams transmitted from mobile station apparatus 30 to central station apparatus 10 even during testing.
  • a mobile station device 30 is on the line and can communicate with the central office device 10 .
  • the counterpart device 40 transmits a telegram to the base station device 20, meaning to stop calling back, using the third communication method.
  • base station apparatus 20 receives the telegram indicating stop of return, base station apparatus 20 deletes the identifier of opposite apparatus 40 registered as the transfer destination of the telegram received from central office apparatus 10 (step ST208). As a result, the opposing device 40 becomes unusable.
  • the monitor control unit 42 of the opposing device 40 transmits a telegram indicating stoppage to the train radio protocol management unit 411.
  • the train radio protocol management unit 411 sets the destination of the train radio protocol header to the base station device 20 and transmits the message to the general protocol management unit 412 .
  • the general-purpose protocol management unit 412 transfers the message to the general-purpose protocol management unit 212 of the base station device 20 .
  • the general-purpose protocol manager 212 of the base station device 20 transmits the message to the train radio protocol manager 211 .
  • the train radio protocol management unit 211 interprets the message because the destination of the train radio protocol header of the message is the base station device 20 .
  • the train radio protocol management unit 211 interprets the telegram to mean cancellation of the return registration, it recognizes that the opposite device 40 is not on the line.
  • the test of the central station device 10 in the train radio communication system according to Embodiment 2 is performed by the base station device 20 returning the message from the central station device 10 to the opposite device 40. Therefore, in the test, , the second communication method, which is a wireless communication method, is not used, and only the third and fourth communication methods, which are wired communication methods, are used. Therefore, the central office device 10 can be tested without being subject to geographical restrictions.
  • the train radio protocol management unit 131 of the central station device 10, the train radio protocol management unit 211 of the base station device 20, and the train radio protocol management unit 411 of the opposite device 40 receive and transmit telegrams within the train radio communication system.
  • the base station device 20 can dynamically switch the transfer destination of the message from the central office device 10 according to the destination. Therefore, since communication between the mobile station apparatus 30 and the central station apparatus 10 can be performed even during the test, the mobile station apparatus 30 can be on-line during the test.

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Abstract

This train radio communication system comprises a mobile station device (30) mounted on a train, and a central station device (10) and a base station device (20) installed on the ground. In a normal state, the base station device (20) transfers a telegram transmitted from the central station device (10) to the mobile station device (30), and transfers a telegram transmitted from the mobile station device (30) to the central station device (10). When the central station device (10) is tested, the base station device (20) switches the transfer destination of the telegram transmitted from the central station device (10) to a counterpart device (40) for testing.

Description

列車無線通信システムtrain radio communication system
　本開示は、列車無線通信システムに関し、特に、中央局装置の機能健全性の確認方法に関するものである。 The present disclosure relates to a train radio communication system, and more particularly to a method for checking the functional integrity of central office equipment.
　列車と地上設備の間の通信（「地車間通信」と呼ばれる）を行う列車無線通信システムの機能健全性を確認する方法として、試験用の対向装置に、列車に搭載される移動局装置を模擬した疑似移動局装置を用いる方法がある（例えば下記の特許文献１）。 As a method of checking the functional soundness of a train radio communication system that communicates between trains and ground equipment (called "ground-to-car communication"), the mobile station equipment installed on the train is simulated in the opposite equipment for testing. There is a method using a simulated mobile station device (for example, Patent Document 1 below).
特許第５５７０４５０号公報Japanese Patent No. 5570450
　列車無線通信システムにおいて、中央局装置と車上の移動局装置との通信は、基地局装置を介して行われ、基地局装置において有線通信と無線通信との変換が行われることで実現される。従来の列車無線通信システムにおいて、中央局装置の音声通信やデータ通信などの機能健全性を確認する試験では、移動局装置に相当する無線通信装置が対向装置として用いられている。そのため、従来の列車無線通信システムの中央局装置の試験では、対向装置が基地局装置と通信可能な場所に位置している必要があり、地理的な制約を受ける。 In a train radio communication system, communication between a central station and an on-board mobile station is performed via a base station, which converts between wired communication and wireless communication. . In a conventional train radio communication system, a radio communication device corresponding to a mobile station device is used as a counterpart device in a test for confirming functional soundness of voice communication, data communication, etc. of a central station device. Therefore, in the test of the central station equipment of the conventional train radio communication system, the opposing equipment must be located in a place where it can communicate with the base station equipment, and is subject to geographical restrictions.
　本開示は以上のような課題を解決するためになされたものであり、地理的な制約を受けずに、中央局装置の試験を実施可能な列車無線通信システムを提供することを提供することを目的とする。 The present disclosure has been made to solve the above problems, and aims to provide a train radio communication system capable of testing a central office device without being subject to geographical restrictions. aim.
　本開示に係る列車無線通信システムは、列車に搭載される移動局装置と、地上に設置される中央局装置と、地上に設置され、前記中央局装置から送信された電文を前記移動局装置へ転送し、前記移動局装置から送信された電文を前記中央局装置へ転送する基地局装置と、を備え、前記中央局装置の試験が行われるとき、前記基地局装置は、前記中央局装置から送信された電文の転送先を試験用の対向装置へ切り替える。 A train radio communication system according to the present disclosure includes: a mobile station device mounted on a train; a central station device installed on the ground; and a base station device for transferring telegrams transmitted from the mobile station device to the central station device, wherein when the central station device is tested, the base station device receives from the central station device Switch the forwarding destination of the message sent to the counterpart device for testing.
　本開示によれば、試験において対向装置と基地局との無線受信を行う必要がないため、地理的な制約を受けずに中央局装置の試験を実施することができる。 According to the present disclosure, since there is no need for wireless reception between the opposing device and the base station in the test, it is possible to test the central office device without being subject to geographical restrictions.
　本開示の目的、特徴、態様、および利点は、以下の詳細な説明と添付図面とによって、より明白となる。 The objects, features, aspects, and advantages of the present disclosure will become more apparent with the following detailed description and accompanying drawings.
実施の形態１に係る列車無線通信システムの構成図である。1 is a configuration diagram of a train radio communication system according to Embodiment 1; FIG. 実施の形態１に係る中央局装置のブロック図である。2 is a block diagram of a central office apparatus according to Embodiment 1; FIG. 実施の形態１に係る新基地局装置のブロック図である。2 is a block diagram of a new base station apparatus according to Embodiment 1; FIG. 実施の形態１に係る移動局装置のブロック図である。2 is a block diagram of a mobile station apparatus according to Embodiment 1; FIG. 実施の形態１に係る対向装置のブロック図である。1 is a block diagram of a facing device according to Embodiment 1; FIG. 実施の形態１に係る列車無線通信システムの動作を示すシーケンス図である。4 is a sequence diagram showing the operation of the train radio communication system according to Embodiment 1; FIG. 実施の形態２に係る列車無線通信システムの構成図である。2 is a configuration diagram of a train radio communication system according to Embodiment 2; FIG. 実施の形態２に係る中央局装置のブロック図である。FIG. 8 is a block diagram of a central office apparatus according to Embodiment 2; 実施の形態２に係る新基地局装置のブロック図である。FIG. 4 is a block diagram of a new base station apparatus according to Embodiment 2; 実施の形態１に係る対向装置のブロック図である。1 is a block diagram of a facing device according to Embodiment 1; FIG. 実施の形態２に係る列車無線通信システムにおいて中央局装置と基地局装置との間の通信で用いられるデータフォーマットを示す図である。FIG. 10 is a diagram showing a data format used in communication between the central station apparatus and the base station apparatus in the train radio communication system according to Embodiment 2; 実施の形態２に係る列車無線通信システムの動作を示すシーケンス図である。FIG. 9 is a sequence diagram showing the operation of the train radio communication system according to Embodiment 2;
　＜実施の形態１＞
　図１は、実施の形態１に係る列車無線通信システムの構成図である。実施の形態１に係る列車無線通信システムは、地上の中央局に設置された中央局装置１０と、地上の基地局に設置された基地局装置２０と、移動局である列車に搭載された移動局装置３０と、中央局装置１０の健全性試験（以下、単に「試験」ということもある）に用いられる対向装置４０とを含んでいる。ここで、基地局装置２０には、実施の形態１に係る列車無線通信システムに新たに導入された新基地局装置２０Ｎと、従来システムから未更新の旧基地局装置２０Ｌとが含まれていてもよい。 <Embodiment 1>
FIG. 1 is a configuration diagram of a train radio communication system according to Embodiment 1. As shown in FIG. A train radio communication system according to Embodiment 1 includes a central station device 10 installed at a central station on the ground, a base station device 20 installed at a base station on the ground, and a mobile station mounted on a train, which is a mobile station. It includes a station device 30 and a counterpart device 40 used for a soundness test (hereinafter sometimes simply referred to as “test”) of the central station device 10 . Here, the base station device 20 includes a new base station device 20N newly introduced into the train radio communication system according to Embodiment 1 and an old base station device 20L that has not been updated from the conventional system. good too.
　中央局装置１０と基地局装置２０との間の通信は、従来の有線区間の通信方式である第１通信方式で行われる。基地局装置２０と移動局装置３０との間の通信は、従来の無線区間の通信方式である第２通信方式で行われる。対向装置４０は、基地局装置２０のうちの新基地局装置２０Ｎとの通信を行い、新基地局装置２０Ｎと対向装置４０との間の通信は、新たに追加された有線区間の通信方式である第３通信方式で行われる。 Communication between the central station device 10 and the base station device 20 is performed by the first communication method, which is a conventional wired section communication method. Communication between the base station apparatus 20 and the mobile station apparatus 30 is performed by the second communication method, which is a conventional wireless section communication method. Opposing device 40 communicates with new base station device 20N of base station devices 20, and communication between new base station device 20N and opposing device 40 is based on a newly added wired section communication method. It is performed by a certain third communication method.
　列車無線通信システムには、中央局装置１０が設置された中央局が１つ置かれる。中央局には列車の運行を管理する指令室が存在し、指令員は、指令室内の指令電話機を用いて、列車の乗務員へ発信したり、列車の乗務員からの着信を受けたりすることができる。また、指令室には列車無線通信システムの保守端末が存在し、指令員は、保守端末を用いて、中央局装置１０、基地局装置２０および移動局装置３０の状態を監視、制御することができる。 The train radio communication system has one central office in which the central office device 10 is installed. The central office has a control room that manages train operation, and the dispatcher can use the command telephone in the control room to make calls to and receive calls from the train crew. . In addition, there is a maintenance terminal for the train radio communication system in the command room, and the dispatcher can use the maintenance terminal to monitor and control the states of the central station device 10, the base station device 20, and the mobile station device 30. can.
　中央局の配下には、中央局装置１０と移動局装置３０との間の通信を制御する基地局装置２０が設置された基地局が複数置かれる。基地局装置２０のうちの新基地局装置２０Ｎは、中央局装置１０と移動局装置３０との間の通信だけでなく、中央局装置１０と対向装置４０との間の通信も制御する。よって、新基地局装置２０Ｎは、第１通信方式の通信と第２通信方式の通信との相互変換に加え、第１通信方式の通信と第３通信方式の通信との相互変換を行うことが可能である。一方、旧基地局装置２０Ｌは、中央局装置１０と移動局装置３０との間の通信のみを制御する。よって、旧基地局装置２０Ｌは、第１通信方式の通信と第２通信方式の通信との相互変換のみを行う。 Under the control of the central station, there are a plurality of base stations installed with base station devices 20 that control communication between the central station device 10 and the mobile station devices 30 . The new base station device 20N of the base station devices 20 controls not only the communication between the central station device 10 and the mobile station device 30 but also the communication between the central station device 10 and the correspondent device 40. FIG. Therefore, the new base station apparatus 20N can perform mutual conversion between communication according to the first communication system and communication according to the third communication system in addition to mutual conversion between communication according to the first communication system and communication according to the second communication system. It is possible. On the other hand, the old base station device 20L controls only communication between the central station device 10 and the mobile station device 30. FIG. Therefore, the old base station device 20L performs only mutual conversion between the communication of the first communication method and the communication of the second communication method.
　以下、説明の簡略化のため、基地局装置２０は全て新基地局装置２０Ｎであるものと仮定する。よって、以下の説明における「基地局装置２０」は、新基地局装置２０Ｎであるものとする。 To simplify the explanation below, it is assumed that all base station devices 20 are new base station devices 20N. Therefore, the “base station device 20” in the following description is assumed to be the new base station device 20N.
　列車には、中央局装置１０と通信するための移動局装置３０が搭載されている。列車の乗務員は、移動局装置３０に設けられた操作盤を用いて、中央局の中央局装置１０を操作する指令員と通話することができる。中央局装置１０と移動局装置３０との間の通信には、第１通信方式と第２通信方式とが使用される。 A mobile station device 30 for communicating with the central station device 10 is mounted on the train. A train crew member can use a control panel provided in the mobile station device 30 to communicate with a dispatcher who operates the central station device 10 of the central station. A first communication scheme and a second communication scheme are used for communication between the central office apparatus 10 and the mobile station apparatus 30 .
　対向装置４０は、中央局装置１０の健全性試験に用いられる試験用の装置であり、移動局装置３０と同じ機能を具備する擬似移動局装置である。対向装置４０は、基地局装置２０に接続される。中央局装置１０と対向装置４０との間の通信には、第１通信方式と第３通信方式とが使用される。 The counterpart device 40 is a test device used for the soundness test of the central office device 10 and is a pseudo mobile station device having the same functions as the mobile station device 30 . The correspondent device 40 is connected to the base station device 20 . A first communication method and a third communication method are used for communication between the central office device 10 and the opposite device 40 .
　図２は、中央局装置１０のブロック図である。中央局装置１０は、呼制御部１１、監視制御部１２および通信制御部１３を備えている。 FIG. 2 is a block diagram of the central office device 10. FIG. The central office device 10 includes a call control section 11 , a monitor control section 12 and a communication control section 13 .
　呼制御部１１は、指令電話機の制御を行う。例えば、呼制御部１１は、指令員による指令電話機の操作に応じて、通信制御部１３に基地局装置２０への発信を指示する。また、呼制御部１１は、通信制御部１３が基地局装置２０から受信した信号に応じて、指令電話機を制御する。 The call control unit 11 controls the command telephone. For example, the call control unit 11 instructs the communication control unit 13 to make a call to the base station device 20 according to the operation of the command telephone by the dispatcher. Also, the call control unit 11 controls the command telephone according to the signal received by the communication control unit 13 from the base station device 20 .
　監視制御部１２は、保守端末の制御を行う。例えば、監視制御部１２は、指令員による保守端末の操作に応じて、通信制御部１３を介して基地局装置２０および移動局装置３０の監視および制御を行い、その結果に応じて保守端末を制御する。 The monitoring control unit 12 controls maintenance terminals. For example, the monitor control unit 12 monitors and controls the base station device 20 and the mobile station device 30 via the communication control unit 13 according to the operation of the maintenance terminal by the commander, and operates the maintenance terminal according to the result. Control.
　図３は、基地局装置２０のブロック図である。基地局装置２０は、通信制御部２１、多重化部２２および無線通信部２３を備えている。 FIG. 3 is a block diagram of the base station device 20. FIG. The base station device 20 has a communication control section 21 , a multiplexing section 22 and a radio communication section 23 .
　通信制御部２１は、中央局装置１０および対向装置４０との有線通信を終端する。また、通信制御部２１は、中央局装置１０からの電文を移動局装置３０へ転送するか、対向装置４０へ転送するかを切り替えることができる（中央局装置１０からの電文を対向装置４０へ転送することを「折り返す」ということもある）。具体的には、通信制御部２１には、中央局装置１０からの電文を移動局装置３０へ転送するか、対向装置４０へ折り返すかを切り替えるための「折り返し登録情報」（「対向装置４０への折り返し登録情報」ということもある）を登録することができ、通信制御部２１は、折り返し登録情報が登録されていない状態では、中央局装置１０から受信した電文を対向装置４０へ送信するために道外電文を多重化部２２へ送信し、折り返し登録情報が登録された状態のときは、中央局装置１０から受信した電文を対向装置４０へ転送する。また、通信制御部２１は、多重化部２２もしくは対向装置４０から受信した電文を、中央局装置１０へ送信する。 The communication control unit 21 terminates wired communication with the central office device 10 and the opposite device 40 . In addition, the communication control unit 21 can switch between transferring a telegram from the central office device 10 to the mobile station device 30 and transferring it to the opposite device 40 (the telegram from the central office device 10 is transferred to the opposite device 40). Forwarding is sometimes called “wrapping”). Specifically, the communication control unit 21 has “return registration information” (“to the opposite device 40 ), and the communication control unit 21 transmits the message received from the central office device 10 to the opposite device 40 in a state where the return registration information is not registered. Then, when the return registration information is registered, the telegram received from the central office device 10 is transferred to the opposite device 40.例文帳に追加In addition, the communication control unit 21 transmits telegrams received from the multiplexing unit 22 or the opposite device 40 to the central office device 10 .
　多重化部２２は、通信制御部２１から受信した複数の電文を多重化し、多重化した電文を無線フレームの形で無線通信部２３に送信する。また、多重化部２２は、無線通信部２３から受信した無線フレームを複数の電文に分離し、分離した複数の電文を通信制御部２１へ送信する。 The multiplexing unit 22 multiplexes a plurality of messages received from the communication control unit 21 and transmits the multiplexed messages to the wireless communication unit 23 in the form of wireless frames. The multiplexing unit 22 also separates the radio frame received from the radio communication unit 23 into a plurality of electronic messages, and transmits the separated plural electronic messages to the communication control unit 21 .
　無線通信部２３は、移動局装置３０との無線通信を終端する。具体的には、無線通信部２３は、多重化部２２から受信した無線フレームを移動局装置３０へ送信する。また、無線通信部２３は、移動局装置３０から受信した無線フレームを多重化部２２へ送信する。 The wireless communication unit 23 terminates wireless communication with the mobile station device 30. Specifically, radio communication section 23 transmits the radio frame received from multiplexing section 22 to mobile station apparatus 30 . Also, the radio communication unit 23 transmits the radio frame received from the mobile station device 30 to the multiplexing unit 22 .
　図４は、移動局装置３０のブロック図である。移動局装置３０は、無線通信部３１、多重化部３２、呼制御部３３、端末制御部３４および音声制御部３５を備えている。 4 is a block diagram of the mobile station device 30. FIG. The mobile station device 30 includes a radio communication section 31 , a multiplexing section 32 , a call control section 33 , a terminal control section 34 and a voice control section 35 .
　無線通信部３１は、基地局装置２０との無線通信を終端する。具体的には、無線通信部３１は、基地局装置２０から受信した無線フレームを多重化部３２へ送信する。また、無線通信部３１は、多重化部３２から受信した無線フレームを基地局装置２０へ送信する。 The wireless communication unit 31 terminates wireless communication with the base station device 20. Specifically, the radio communication unit 31 transmits the radio frame received from the base station device 20 to the multiplexing unit 32 . Also, the radio communication unit 31 transmits the radio frame received from the multiplexing unit 32 to the base station device 20 .
　多重化部３２は、無線通信部３１から受信した無線フレームを複数の電文に分離し、分離した複数の電文を、当該電文の内容に応じて、呼制御部３３、端末制御部３４または音声制御部３５に送信する。また、多重化部３２は、呼制御部３３、端末制御部３４または音声制御部３５から受信した複数の電文を多重化し、多重化した電文を無線フレームの形で無線通信部３１に送信する。 The multiplexing unit 32 separates the radio frame received from the radio communication unit 31 into a plurality of electronic messages, and transmits the separated plural electronic messages to the call control unit 33, the terminal control unit 34, or the voice control unit 34 according to the contents of the electronic messages. 35. The multiplexing unit 32 multiplexes a plurality of messages received from the call control unit 33, the terminal control unit 34, or the voice control unit 35, and transmits the multiplexed messages to the wireless communication unit 31 in the form of wireless frames.
　呼制御部３３は、端末制御部３４や無線通信部３１を介して他局との間で呼状態の管理を行う。 The call control unit 33 manages call states with other stations via the terminal control unit 34 and the wireless communication unit 31.
　音声制御部３５は、多重化部３２から受信した音声信号を復号化し、復号化した音声信号を、端末制御部３４を介して操作盤へ送信する。また、音声制御部３５は、操作盤から端末制御部３４を介して受信した音声信号を符号化し、符号化した音声信号を、多重化部３２および無線通信部３１を介して他局へ送信する。 The audio control unit 35 decodes the audio signal received from the multiplexing unit 32, and transmits the decoded audio signal to the operation panel via the terminal control unit 34. Also, the voice control unit 35 encodes voice signals received from the operation panel via the terminal control unit 34, and transmits the encoded voice signals to other stations via the multiplexing unit 32 and the wireless communication unit 31. .
　端末制御部３４は、操作盤の制御を行う。例えば、端末制御部３４は、呼制御部３３からの呼出を受けて、操作盤に対し着信を指示する。また、端末制御部３４は、操作盤からの呼出を受けて、その呼出を呼制御部３３を介して他局へ発信する。 The terminal control unit 34 controls the operation panel. For example, the terminal control unit 34 receives a call from the call control unit 33 and instructs the operation panel to receive a call. Also, the terminal control unit 34 receives a call from the operation panel and transmits the call to another station via the call control unit 33 .
　図５は、対向装置４０のブロック図である。対向装置４０は、通信制御部４１、監視制御部４２、呼制御部４３、音声制御部４４および操作部４５を備えている。 FIG. 5 is a block diagram of the opposing device 40. FIG. The counterpart device 40 includes a communication control section 41 , a monitor control section 42 , a call control section 43 , a voice control section 44 and an operation section 45 .
　通信制御部４１は、基地局装置２０との有線通信を終端する。具体的には、通信制御部４１は、基地局装置２０から受信した電文を、当該電文の内容に応じて監視制御部４２、呼制御部４３または音声制御部４４に送信する。また、通信制御部４１は、監視制御部４２、呼制御部４３または音声制御部４４から受信した電文を基地局装置２０へ送信する。 The communication control unit 41 terminates wired communication with the base station device 20 . Specifically, the communication control unit 41 transmits a message received from the base station device 20 to the monitor control unit 42, the call control unit 43, or the voice control unit 44 according to the content of the message. The communication control unit 41 also transmits messages received from the monitor control unit 42 , the call control unit 43 or the voice control unit 44 to the base station device 20 .
　監視制御部４２は、試験に用いる障害や状態の情報を生成し、生成した情報を通信制御部４１へ送信する。 The monitor control unit 42 generates failure and status information used in the test, and transmits the generated information to the communication control unit 41 .
　呼制御部４３は、操作部４５や通信制御部４１を介して他局との間で呼状態の管理を行う。 The call control unit 43 manages call states with other stations via the operation unit 45 and the communication control unit 41.
　音声制御部４４は、基地局装置２０から受信した音声信号を復号化し、復号化した音声信号を操作部４５へ送出する。また、操作部４５から入力された音声信号を符号化し、符号化した音声信号を通信制御部４１へ送信する。 The audio control unit 44 decodes the audio signal received from the base station device 20 and sends the decoded audio signal to the operation unit 45 . It also encodes an audio signal input from the operation unit 45 and transmits the encoded audio signal to the communication control unit 41 .
　操作部４５は、操作盤に相当する操作インタフェースであり、指令電話機からの呼出に応じて、呼制御部４３に他局への発信を指示する。 The operation unit 45 is an operation interface corresponding to an operation panel, and instructs the call control unit 43 to make a call to another station in response to a call from the command telephone.
　図６は、実施の形態１に係る列車無線通信システムの動作を示すシーケンス図である。以下、図６に基づいて、実施の形態１に係る列車無線通信システムの動作を説明する。 FIG. 6 is a sequence diagram showing the operation of the train radio communication system according to the first embodiment. The operation of the train radio communication system according to Embodiment 1 will be described below based on FIG.
　基地局装置２０の通信制御部２１に対向装置４０への折り返し登録情報が未登録の状態では、移動局装置３０と中央局装置１０との間で通信が行われる。つまり、移動局装置３０が第２通信方式で送信した電文は、基地局装置２０に受信され、基地局装置２０がそれを第１通信方式で中央局装置１０へ転送する（ステップＳＴ１０１）。また、中央局装置１０が第１通信方式で送信した電文は、基地局装置２０に受信され、基地局装置２０がそれを第２通信方式で移動局装置３０へ転送する（ステップＳＴ１０２）。 Communication is performed between the mobile station device 30 and the central station device 10 when the return registration information for the opposite device 40 is not registered in the communication control unit 21 of the base station device 20 . That is, the message transmitted by the mobile station apparatus 30 using the second communication method is received by the base station apparatus 20, and the base station apparatus 20 transfers it to the central office apparatus 10 using the first communication method (step ST101). Also, the telegram transmitted by the central station apparatus 10 in the first communication method is received by the base station apparatus 20, and the base station apparatus 20 transfers it to the mobile station apparatus 30 in the second communication method (step ST102).
　詳細には、ステップＳＴ１０１では、移動局装置３０の無線通信部３１が、第２通信方式で、電文を無線フレームの形で基地局装置２０の無線通信部２３へ送信する。基地局装置２０の無線通信部２３は、受信した無線フレームを多重化部２２へ送信し、多重化部２２が無線フレームから電文を分離する。多重化部２２は、分離した電文を通信制御部２１へ送信する。通信制御部２１は、折り返し登録情報が未登録であるため、当該電文は中央局装置１０宛であると判断し、中央局装置１０の通信制御部１３へ当該電文を転送する。 Specifically, in step ST101, the wireless communication unit 31 of the mobile station device 30 transmits a message in the form of a wireless frame to the wireless communication unit 23 of the base station device 20 using the second communication method. The radio communication unit 23 of the base station device 20 transmits the received radio frame to the multiplexing unit 22, and the multiplexing unit 22 separates the message from the radio frame. The multiplexing unit 22 transmits the separated messages to the communication control unit 21 . Since the return registration information is not registered, the communication control unit 21 determines that the telegram is addressed to the central office device 10 and transfers the telegram to the communication control unit 13 of the central office device 10 .
　また、ステップＳＴ１０２では、中央局装置１０の通信制御部１３が、第１通信方式で、基地局装置２０の通信制御部２１へ電文を送信する。基地局装置２０の通信制御部２１は、折り返し登録情報が未登録であるため、受信した電文が移動局装置３０宛であると判断し、当該電文を多重化部２２へ送信する。多重化部２２は、当該電文を多重化して無線フレームの形で無線通信部２３へ送信する。無線通信部２３は、当該無線フレームを第２通信方式で移動局装置３０の無線通信部３１へ送信する。 Also, in step ST102, the communication control section 13 of the central office device 10 transmits a message to the communication control section 21 of the base station device 20 using the first communication method. Since the return registration information is not registered, the communication control unit 21 of the base station device 20 determines that the received message is addressed to the mobile station device 30 and transmits the message to the multiplexing unit 22 . The multiplexing unit 22 multiplexes the message and transmits it to the wireless communication unit 23 in the form of a wireless frame. The radio communication unit 23 transmits the radio frame to the radio communication unit 31 of the mobile station device 30 using the second communication method.
　中央局装置１０の試験を行う場合、まず、対向装置４０が、第３通信方式で、対向装置４０への折り返し登録を意味する電文を、基地局装置２０に送信する。基地局装置２０は、対向装置４０からの折り返し登録を意味する電文を受信すると、中央局装置１０から受信した電文の転送先を、移動局装置３０から試験用の対向装置４０に変更する（ステップＳＴ１０３）。これにより、対向装置４０を用いた中央局装置１０の試験が可能な状態となる。 When testing the central office device 10, first, the opposing device 40 transmits to the base station device 20 a telegram indicating return registration to the opposing device 40 using the third communication method. When the base station device 20 receives the message indicating return registration from the opposite device 40, it changes the transfer destination of the message received from the central station device 10 from the mobile station device 30 to the opposite device 40 for testing (step ST103). This makes it possible to test the central office equipment 10 using the counterpart equipment 40 .
　詳細には、ステップＳＴ１０３では、対向装置４０の監視制御部４２が、対向装置４０への折り返し登録を意味する電文を通信制御部４１へ送信する。通信制御部４１は、当該電文を基地局装置２０の通信制御部２１へ送信する。基地局装置２０の通信制御部２１は、折り返し登録を意味する電文を受信すると、折り返し登録情報を登録することで、中央局装置１０から受信した電文の転送先を、試験用の対向装置４０に切り替える。 Specifically, in step ST103 , the monitor control unit 42 of the opposed device 40 transmits to the communication control unit 41 a message indicating return registration to the opposed device 40 . The communication control unit 41 transmits the message to the communication control unit 21 of the base station device 20 . Upon receiving a telegram indicating return registration, the communication control unit 21 of the base station device 20 registers the return registration information, thereby setting the transfer destination of the telegram received from the central office device 10 to the opposite device 40 for testing. switch.
　続いて、対向装置４０は、第３通信方式で、基地局装置２０へ電文を送信する。対向装置４０から送信された電文は、基地局装置２０に受信され、基地局装置２０はそれを第１通信方式で中央局装置１０へ転送する（ステップＳＴ１０４）。 Subsequently, the counterpart device 40 transmits a message to the base station device 20 using the third communication method. The message transmitted from the opposite device 40 is received by the base station device 20, and the base station device 20 transfers it to the central office device 10 by the first communication method (step ST104).
　詳細には、ステップＳＴ１０４では、対向装置４０の通信制御部４１が、第３通信方式で基地局装置２０の通信制御部２１へ電文を送信する。基地局装置２０の通信制御部２１は、折り返し登録情報が登録中であるため、当該電文を第１通信方式で中央局装置１０の通信制御部１３へ送信する。 Specifically, in step ST104, the communication control section 41 of the opposite device 40 transmits a message to the communication control section 21 of the base station device 20 using the third communication method. Since the return registration information is being registered, the communication control unit 21 of the base station device 20 transmits the message to the communication control unit 13 of the central station device 10 using the first communication method.
　試験中に、移動局装置３０から第２通信方式で電文が送信された場合、その電文は基地局装置２０に受信されるが、基地局装置２０はそれを中央局装置１０へ転送せずに破棄する（ステップＳＴ１０５）。 During the test, when a message is transmitted from the mobile station device 30 by the second communication method, the message is received by the base station device 20, but the base station device 20 does not transfer it to the central station device 10. Discard (step ST105).
　詳細には、ステップＳＴ１０５では、移動局装置３０の無線通信部３１が、第２通信方式で電文を基地局装置２０の無線通信部２３へ送信する。基地局装置２０の無線通信部２３は、受信した無線フレームを多重化部２２へ送信し、多重化部２２が無線フレームから電文を分離する。多重化部２２は、分離した電文を通信制御部２１へ送信する。通信制御部２１は、折り返し登録情報が登録中であるため、受信した電文を破棄する。 Specifically, in step ST105, the wireless communication unit 31 of the mobile station device 30 transmits a message to the wireless communication unit 23 of the base station device 20 using the second communication method. The radio communication unit 23 of the base station device 20 transmits the received radio frame to the multiplexing unit 22, and the multiplexing unit 22 separates the message from the radio frame. The multiplexing unit 22 transmits the separated messages to the communication control unit 21 . Since the return registration information is being registered, the communication control unit 21 discards the received message.
　また、試験中に、中央局装置１０が、第１通信方式で電文を送信すると、当該電文は基地局装置２０に受信され、基地局装置２０がそれを第３通信方式で対向装置４０へ転送する（ステップＳＴ１０６）。 Also, during the test, when the central office device 10 transmits a telegram in the first communication method, the telegram is received by the base station device 20, and the base station device 20 transfers it to the opposite device 40 in the third communication method. (step ST106).
　詳細には、ステップＳＴ１０６では、中央局装置１０の通信制御部１３が、第１通信方式で基地局装置２０の通信制御部２１へ電文を送信する。基地局装置２０の通信制御部２１は、折り返し登録情報が登録中であるため、当該電文が対向装置４０宛であると判断し、第３通信方式で対向装置４０の通信制御部４１へ当該電文を転送する。 Specifically, in step ST106, the communication control section 13 of the central office device 10 transmits a message to the communication control section 21 of the base station device 20 using the first communication method. Since the return registration information is being registered, the communication control unit 21 of the base station device 20 determines that the message is addressed to the opposite device 40, and sends the message to the communication control unit 41 of the opposite device 40 using the third communication method. transfer.
　ステップＳＴ１０４およびステップＳＴ１０６の処理により、中央局装置１０の指令電話機と対向装置４０との通話試験や、保守端末から対向装置４０の状態監視の試験が可能となり、中央局装置１０の機能健全性を確認することができる。なお、試験中は、ステップＳＴ１０５に示したように、基地局装置２０が、移動局装置３０からの電文を中央局装置１０に転送しないため、移動局装置３０が基地局装置２０に在線することができず、移動局装置３０と中央局装置１０との間の通信は行われない。 Through the processing of steps ST104 and ST106, it becomes possible to perform a call test between the command telephone of the central office equipment 10 and the opposite equipment 40, and a test of monitoring the status of the opposite equipment 40 from the maintenance terminal. can be confirmed. During the test, as shown in step ST105, the base station apparatus 20 does not transfer the message from the mobile station apparatus 30 to the central station apparatus 10. communication between the mobile station apparatus 30 and the central office apparatus 10 is not performed.
　試験を終了する場合は、対向装置４０が、第３通信方式で基地局装置２０に折り返し停止を意味する電文を送信する。基地局装置２０は、折り返し停止を意味する電文を受信すると、中央局装置１０からの電文の転送先を、移動局装置３０に戻す（ステップＳＴ１０７）。これにより、移動局装置３０が基地局装置２０に在線できるようになり、移動局装置３０と中央局装置１０との間の通信が可能となる。一方、対向装置４０は使用できなくなる。 When ending the test, the counterpart device 40 transmits a telegram meaning stop calling back to the base station device 20 using the third communication method. Upon receiving the telegram indicating the stop of the return, the base station device 20 returns the transfer destination of the telegram from the central station device 10 to the mobile station device 30 (step ST107). As a result, the mobile station device 30 can be on-line with the base station device 20, and communication between the mobile station device 30 and the central station device 10 becomes possible. On the other hand, the opposing device 40 becomes unusable.
　詳細には、ステップＳＴ１０７では、対向装置４０の監視制御部４２が、折り返し停止を意味する電文を通信制御部４１へ送信する。通信制御部４１は、当該電文を基地局装置２０の通信制御部２１へ送信する。基地局装置２０の通信制御部２１は、折り返し停止を意味する電文を受信すると、折り返し登録情報の登録を解除することで、中央局装置１０からの電文の転送先を、移動局装置３０に切り替える。 Specifically, in step ST107, the monitor control unit 42 of the counterpart device 40 transmits a message to the communication control unit 41 indicating that the return is to be stopped. The communication control unit 41 transmits the message to the communication control unit 21 of the base station device 20 . When the communication control unit 21 of the base station device 20 receives the message indicating stop of return, it cancels the registration of the return registration information, thereby switching the transfer destination of the message from the central station device 10 to the mobile station device 30. .
　上記の試験は、複数の基地局装置２０のそれぞれに対して実施することができる。 The above test can be performed for each of the plurality of base station devices 20.
　このように、実施の形態１に係る列車無線通信システムにおける中央局装置１０の試験は、基地局装置２０が中央局装置１０からの電文を対向装置４０へ折り返すことによって行われるため、当該試験では、無線通信の方式である第２通信方式は用いられず、有線通信の方式である第１通信方式および第３通信方式のみが用いられる。従って、地理的な制約を受けることなく、中央局装置１０の試験を行うことができる。 As described above, the test of the central station device 10 in the train radio communication system according to Embodiment 1 is performed by the base station device 20 returning the message from the central station device 10 to the opposite device 40. Therefore, in the test , the second communication method, which is a wireless communication method, is not used, and only the first and third communication methods, which are wire communication methods, are used. Therefore, the central office device 10 can be tested without being subject to geographical restrictions.
　＜実施の形態２＞
　実施の形態１では、中央局装置１０と新基地局装置２０Ｎとの間の通信は、中央局装置１０と旧基地局装置２０Ｌとの間の通信と同様に、従来の有線区間の通信方式である第１通信方式で行われる。そのため、中央局装置１０からの電文を移動局装置３０へ折り返す新基地局装置２０Ｎの動作モードと、試験のために中央局装置１０からの電文を対向装置４０へ折り返す新基地局装置２０Ｎの動作モードとを、排他的に切り替える必要があった。 <Embodiment 2>
In Embodiment 1, the communication between the central station device 10 and the new base station device 20N is the same as the communication between the central station device 10 and the old base station device 20L, using the conventional wired section communication method. A certain first communication method is used. Therefore, the operation mode of the new base station device 20N that returns the message from the central office device 10 to the mobile station device 30 and the operation of the new base station device 20N that returns the message from the central office device 10 to the opposite device 40 for testing It was necessary to switch between modes exclusively.
　実施の形態２では、中央局装置１０と新基地局装置２０Ｎとの間の通信方式として、電文の宛先を指定できる新たな第４通信方式を導入し、さらに、新基地局装置２０Ｎと対向装置４０との間の第３通信方式にも電文の宛先を指定できる通信方式を採用する。それにより、基地局装置２０が中央局装置１０からの電文を移動局装置３０へ転送するか、対向装置４０へ折り返すかを動的に切り替えできるようにする。 In the second embodiment, as a communication method between the central station device 10 and the new base station device 20N, a new fourth communication method capable of specifying the destination of a telegram is introduced. 40 also employs a communication system capable of designating the destination of the electronic message. Thereby, the base station device 20 can dynamically switch between forwarding the message from the central station device 10 to the mobile station device 30 and returning it to the opposite device 40 .
　図７は、実施の形態１の列車無線通信システムの構成図である。図７の列車無線通信システムでは、中央局装置１０と新基地局装置２０Ｎとの間の通信が、新たに追加した第４通信方式で行われる。その他の構成は図１と同じである。 FIG. 7 is a configuration diagram of the train radio communication system according to the first embodiment. In the train radio communication system of FIG. 7, communication between the central station device 10 and the new base station device 20N is performed by the newly added fourth communication method. Other configurations are the same as in FIG.
　図８は、実施の形態２に係る中央局装置１０のブロック図である。実施の形態２の中央局装置１０では、通信制御部１３が、列車無線プロトコル管理部１３１と汎用プロトコル管理部１３２とを有している。列車無線プロトコル管理部１３１は、列車無線通信システム内の電文の送受信を管理し、受信した電文の宛先を識別し、また、中央局装置１０が送信する電文に宛先を識別するための識別子を付与する。汎用プロトコル管理部１３２は、ＴＣＰ／ＩＰなど汎用的なプロトコルを管理する。 FIG. 8 is a block diagram of the central office device 10 according to the second embodiment. In the central office device 10 of Embodiment 2, the communication control section 13 has a train radio protocol management section 131 and a general protocol management section 132 . The train radio protocol management unit 131 manages transmission and reception of telegrams within the train radio communication system, identifies the destination of the received telegram, and assigns an identifier for identifying the destination to the telegram transmitted by the central office device 10. do. The general-purpose protocol management unit 132 manages general-purpose protocols such as TCP/IP.
　図９は、実施の形態２に係る新基地局装置２０Ｎのブロック図である。実施の形態２の新基地局装置２０Ｎでは、通信制御部２１が、列車無線プロトコル管理部２１１と汎用プロトコル管理部２１２とを有している。列車無線プロトコル管理部２１１は、列車無線通信システム内の電文の送受信を管理し、受信した電文の宛先を識別して、当該電文の転送先をその宛先に応じて切り替える。汎用プロトコル管理部２１２は、ＴＣＰ／ＩＰなど汎用的なプロトコルを管理する。 FIG. 9 is a block diagram of the new base station apparatus 20N according to Embodiment 2. FIG. In the new base station device 20N of Embodiment 2, the communication control section 21 has a train radio protocol management section 211 and a general-purpose protocol management section 212 . The train radio protocol management unit 211 manages the transmission and reception of telegrams within the train radio communication system, identifies the destination of the received telegram, and switches the transfer destination of the telegram according to the destination. A general-purpose protocol management unit 212 manages general-purpose protocols such as TCP/IP.
　図１０は、実施の形態２に係る対向装置４０のブロック図である。実施の形態２の対向装置４０では、通信制御部４１が、列車無線プロトコル管理部４１１と汎用プロトコル管理部４１２とを有している。列車無線プロトコル管理部４１１は、列車無線システム内の電文の送受信を管理し、受信した電文の宛先を識別し、また、対向装置４０が送信する電文に宛先を識別するための識別子を付与する。汎用プロトコル管理部４１２は、ＴＣＰ／ＩＰなど汎用的なプロトコルを管理する。 FIG. 10 is a block diagram of the facing device 40 according to the second embodiment. In the counterpart device 40 of the second embodiment, the communication control section 41 has a train radio protocol management section 411 and a general protocol management section 412 . The train radio protocol management unit 411 manages transmission and reception of telegrams within the train radio system, identifies the destination of the received telegram, and assigns an identifier for identifying the destination to the telegram transmitted by the opposing device 40 . A general-purpose protocol management unit 412 manages general-purpose protocols such as TCP/IP.
　図１１は、実施の形態２において、中央局装置１０と新基地局装置２０Ｎとの間の通信で使用されるデータフォーマットを示す図である。アプリケーションデータは、中央局装置１０の呼制御部１１および監視制御部１２、あるいは、移動局装置３０の監視制御部１２および呼制御部３３で生成されるデータである。 FIG. 11 is a diagram showing a data format used in communication between the central station device 10 and the new base station device 20N in the second embodiment. The application data is data generated by the call control unit 11 and the monitor control unit 12 of the central office device 10 or the monitor control unit 12 and the call control unit 33 of the mobile station device 30 .
　列車無線プロトコルヘッダは、中央局装置１０の列車無線プロトコル管理部１３１、新基地局装置２０Ｎの列車無線プロトコル管理部２１１、または、対向装置４０の列車無線プロトコル管理部４１１によって、付与および解釈が行われる。列車無線プロトコルヘッダには、アプリケーション種別、宛先、拡張情報が含まれる。宛先には、移動局装置３０と対向装置４０とをそれぞれ識別するための識別子が設定され、中央局装置１０は、受信した電文に付与された列車無線プロトコルヘッダの宛先を解釈することで、当該電文の転送先を判別できる。 The train radio protocol header is assigned and interpreted by the train radio protocol management unit 131 of the central station device 10, the train radio protocol management unit 211 of the new base station device 20N, or the train radio protocol management unit 411 of the opposite device 40. will be The train radio protocol header includes application type, destination, and extended information. Identifiers for respectively identifying the mobile station device 30 and the correspondent device 40 are set in the destination, and the central office device 10 interprets the destination of the train radio protocol header attached to the received telegram to determine the destination. It is possible to determine the forwarding destination of the telegram.
　汎用プロトコルヘッダは、中央局装置１０の汎用プロトコル管理部１３２、または、新基地局装置２０Ｎの汎用プロトコル管理部２１２によって付与および解釈が行われる。汎用プロトコルヘッダには、ＵＤＰヘッダやＩＰヘッダなど汎用的なプロトコルを指す情報が設定される。 The general-purpose protocol header is assigned and interpreted by the general-purpose protocol management unit 132 of the central office device 10 or the general-purpose protocol management unit 212 of the new base station device 20N. Information indicating a general-purpose protocol such as a UDP header or an IP header is set in the general-purpose protocol header.
　図１２は、実施の形態２に係る列車無線通信システムの動作を示すシーケンス図である。以下、図１２に基づいて、実施の形態２に係る列車無線通信システムの動作を説明する。ここでも、説明の簡略化のため、基地局装置２０は全て新基地局装置２０Ｎであるものと仮定する。よって、以下の説明における「基地局装置２０」は、新基地局装置２０Ｎであるものとする。 FIG. 12 is a sequence diagram showing the operation of the train radio communication system according to the second embodiment. The operation of the train radio communication system according to the second embodiment will be described below with reference to FIG. Again, to simplify the explanation, it is assumed that all base station devices 20 are new base station devices 20N. Therefore, the “base station device 20” in the following description is assumed to be the new base station device 20N.
　中央局装置１０の試験が行われないとき、中央局装置１０は、第４通信方式で送信する電文の列車無線プロトコルヘッダの宛先に移動局装置３０の識別子を設定する。また、基地局装置２０は、移動局装置３０から受信した電文の列車無線プロトコルヘッダの宛先に中央局装置１０を設定する。そのため、移動局装置３０が第２通信方式で送信した電文が基地局装置２０に受信されると、基地局装置２０はそれを第４通信方式で中央局装置１０へ転送する（ステップＳＴ２０１）。また、中央局装置１０が第４通信方式で送信した電文が基地局装置２０に受信されると、基地局装置２０はそれを第２通信方式で移動局装置３０へ転送する（ステップＳＴ２０２）。 When the central office device 10 is not tested, the central office device 10 sets the identifier of the mobile station device 30 as the destination of the train radio protocol header of the message transmitted by the fourth communication method. Also, the base station device 20 sets the central station device 10 as the destination of the train radio protocol header of the message received from the mobile station device 30 . Therefore, when the message transmitted by the mobile station device 30 in the second communication method is received by the base station device 20, the base station device 20 transfers it to the central office device 10 in the fourth communication method (step ST201). Also, when the message transmitted by the central station device 10 in the fourth communication method is received by the base station device 20, the base station device 20 transfers it to the mobile station device 30 in the second communication method (step ST202).
　中央局装置１０の試験を行う場合、まず、対向装置４０が、第３通信方式で、折り返し登録を意味する基地局装置２０宛の電文を送信する。基地局装置２０が当該電文を受信すると、基地局装置２０は、中央局装置１０から受信した電文の転送先として、対向装置４０の識別子を登録する（ステップＳＴ２０３）。これにより、基地局装置２０は、中央局装置１０から受信した電文を対向装置４０へ転送可能になり、対向装置４０を用いた中央局装置１０の試験が可能な状態となる。 When testing the central office device 10, first, the counterpart device 40 transmits a telegram addressed to the base station device 20, which means return registration, using the third communication method. When the base station device 20 receives the message, the base station device 20 registers the identifier of the opposite device 40 as the transfer destination of the message received from the central station device 10 (step ST203). As a result, the base station device 20 can transfer the message received from the central office device 10 to the opposite device 40, and the central office device 10 can be tested using the opposite device 40. FIG.
　詳細には、ステップＳＴ２０３では、対向装置４０の監視制御部４２が、折り返し登録を意味する電文を、列車無線プロトコル管理部４１１へ送信する。列車無線プロトコル管理部４１１は、列車無線プロトコルヘッダの宛先を基地局装置２０に設定し、当該電文を汎用プロトコル管理部４１２へ送信する。汎用プロトコル管理部４１２は、基地局装置２０の汎用プロトコル管理部２１２へ当該電文を送信する。基地局装置２０の汎用プロトコル管理部２１２は、当該電文を受信すると、列車無線プロトコル管理部４１１へ当該電文を送信する。列車無線プロトコル管理部４１１は、当該電文の列車無線プロトコルヘッダの宛先が基地局装置２０であるため、当該電文を解釈する。列車無線プロトコル管理部４１１は、当該電文が折り返し登録を意味すると解釈すると、対向装置４０が在線していることを認識する。 Specifically, in step ST203, the monitor control unit 42 of the opposing device 40 transmits a message indicating return registration to the train radio protocol management unit 411. The train radio protocol management unit 411 sets the destination of the train radio protocol header to the base station device 20 and transmits the message to the general protocol management unit 412 . The general-purpose protocol management unit 412 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 . Upon receiving the telegram, the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 411 . The train radio protocol management unit 411 interprets the message because the destination of the train radio protocol header of the message is the base station device 20 . When the train radio protocol management unit 411 interprets the telegram to mean return registration, it recognizes that the opposite device 40 is on the train.
　続いて、対向装置４０は、第３通信方式で、基地局装置２０へ電文を送信する。対向装置４０から送信された電文が基地局装置２０に受信されると、基地局装置２０は、列車無線プロトコルヘッダに中央局装置１０の識別子を設定して、当該電文を第４通信方式で中央局装置１０へ転送する（ステップＳＴ２０４）。 Subsequently, the counterpart device 40 transmits a message to the base station device 20 using the third communication method. When the telegram transmitted from the opposite device 40 is received by the base station device 20, the base station device 20 sets the identifier of the central office device 10 in the train radio protocol header, and transmits the telegram to the central station using the fourth communication method. It is transferred to station apparatus 10 (step ST204).
　詳細には、ステップＳＴ２０４では、対向装置４０の呼制御部４３が、電文を列車無線プロトコル管理部４１１へ送信する。列車無線プロトコル管理部４１１は、列車無線プロトコルヘッダの宛先を中央局装置１０に設定し、当該電文を汎用プロトコル管理部４１２へ送信する。汎用プロトコル管理部４１２は、基地局装置２０の汎用プロトコル管理部２１２へ当該電文を送信する。基地局装置２０の汎用プロトコル管理部２１２は、当該電文を受信すると、列車無線プロトコル管理部２１１へ当該電文を送信する。列車無線プロトコル管理部２１１は、当該電文の列車無線プロトコルヘッダの宛先が中央局装置１０であるため、列車無線プロトコルヘッダの宛先を中央局装置１０にして、当該電文を汎用プロトコル管理部２１２へ送信する。汎用プロトコル管理部２１２は、当該電文を中央局装置１０の汎用プロトコル管理部１３２へ送信する。その結果、対向装置４０が送信した電文が、中央局装置１０に受信される。 Specifically, in step ST204, the call control unit 43 of the counterpart device 40 transmits a telegram to the train radio protocol management unit 411. The train radio protocol management unit 411 sets the destination of the train radio protocol header to the central office device 10 and transmits the message to the general protocol management unit 412 . The general-purpose protocol management unit 412 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 . Upon receiving the telegram, the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 211 . Since the destination of the train radio protocol header of the telegram is the central office device 10, the train radio protocol management unit 211 sets the destination of the train radio protocol header to the central office device 10 and transmits the telegram to the general-purpose protocol management unit 212. do. The general-purpose protocol management unit 212 transmits the message to the general-purpose protocol management unit 132 of the central office device 10 . As a result, the message transmitted by the counterpart device 40 is received by the central office device 10 .
　なお、試験中に、移動局装置３０から第２通信方式で電文が送信された場合、その電文が基地局装置２０に受信されると、試験が行われないときと同様に、基地局装置２０は、列車無線プロトコルヘッダの宛先に中央局装置１０の識別子を設定して、当該電文を第４通信方式で中央局装置１０へ転送する（ステップＳＴ２０５）。 It should be noted that when a telegram is transmitted from the mobile station device 30 in the second communication method during the test, if the telegram is received by the base station device 20, the base station device 20 will sets the identifier of the central office device 10 as the destination of the train radio protocol header, and transfers the message to the central office device 10 by the fourth communication method (step ST205).
　詳細には、ステップＳＴ２０５では、移動局装置３０の無線通信部３１が、第２通信方式で、電文を無線フレームの形で基地局装置２０の無線通信部２３へ送信する。基地局装置２０の無線通信部２３は、受信した無線フレームを多重化部２２へ送信し、多重化部２２は当該無線フレームから電文を分離する。多重化部２２は、分離した電文を列車無線プロトコル管理部２１１へ送信する。列車無線プロトコル管理部２１１は、多重化部２２から受信した電文は全て中央局装置１０宛であると判断し、列車無線プロトコルヘッダの宛先を中央局装置１０に設定して、汎用プロトコル管理部２１２へ当該電文を送信する。汎用プロトコル管理部２１２は、当該電文を中央局装置１０の汎用プロトコル管理部２１２へ送信する。その結果、移動局装置３０が送信した電文が、中央局装置１０に受信される。上記のステップＳＴ１０１も、これと同じ処理によって実施される。 Specifically, in step ST205, the radio communication section 31 of the mobile station device 30 transmits a message in the form of a radio frame to the radio communication section 23 of the base station device 20 using the second communication method. The radio communication unit 23 of the base station device 20 transmits the received radio frame to the multiplexing unit 22, and the multiplexing unit 22 separates the message from the radio frame. The multiplexing unit 22 transmits the separated messages to the train radio protocol management unit 211 . The train radio protocol management unit 211 determines that all telegrams received from the multiplexing unit 22 are addressed to the central office device 10, sets the destination of the train radio protocol header to the central office device 10, and sends the message to the general-purpose protocol management unit 212. Send the telegram to The general-purpose protocol management unit 212 transmits the message to the general-purpose protocol management unit 212 of the central office device 10 . As a result, the message transmitted by the mobile station device 30 is received by the central office device 10 . The above step ST101 is also implemented by the same processing.
　また、試験中に、中央局装置１０が対向装置４０宛の電文を送信する場合、中央局装置１０は、送信する電文の列車無線プロトコルヘッダの宛先に対向装置４０の識別子を設定し、当該電文を第４通信方式で送信する。当該電文が基地局装置２０に受信されると、基地局装置２０はそれを第３通信方式で対向装置４０へ転送する（ステップＳＴ２０６）。 Also, during the test, when the central office device 10 transmits a telegram addressed to the counterpart device 40, the central office device 10 sets the identifier of the counterpart device 40 to the destination of the train radio protocol header of the telegram to be transmitted, and is transmitted by the fourth communication method. When the message is received by base station apparatus 20, base station apparatus 20 transfers it to opposite apparatus 40 using the third communication method (step ST206).
　詳細には、ステップＳＴ２０６では、中央局装置１０の列車無線プロトコル管理部１３１が、列車無線プロトコルヘッダの宛先を対向装置４０に設定して、当該電文を汎用プロトコル管理部１３２へ送信する。汎用プロトコル管理部１３２は、当該電文を基地局装置２０の汎用プロトコル管理部２１２へ送信する。基地局装置２０の汎用プロトコル管理部２１２は、当該電文を受信すると、列車無線プロトコル管理部２１１へ当該電文を送信する。列車無線プロトコル管理部２１１は、当該電文の列車無線プロトコルヘッダの宛先が対向装置４０であり、且つ、対向装置４０が在線状態であるため、列車無線プロトコルヘッダの宛先を対向装置４０に設定して、汎用プロトコル管理部２１２へ当該電文を送信する。汎用プロトコル管理部２１２は、当該電文を対向装置４０の汎用プロトコル管理部４１２へ送信する。その結果、中央局装置１０が送信した対向装置４０宛の電文が、対向装置４０に受信される。 Specifically, in step ST206, the train radio protocol management section 131 of the central office device 10 sets the destination of the train radio protocol header to the counterpart device 40 and transmits the message to the general-purpose protocol management section 132. The general-purpose protocol management unit 132 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 . Upon receiving the telegram, the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 211 . The train radio protocol management unit 211 sets the destination of the train radio protocol header to the counterpart device 40 because the destination of the train radio protocol header of the message is the counterpart device 40 and the counterpart device 40 is on the train. , to the general-purpose protocol management unit 212 . The general-purpose protocol management unit 212 transmits the message to the general-purpose protocol management unit 412 of the counterpart device 40 . As a result, the message sent by the central office device 10 to the opposite device 40 is received by the opposite device 40 .
　また、試験中に、中央局装置１０が移動局装置３０宛の電文を送信する場合は、中央局装置１０が、試験が行われないときと同様に、送信する電文の列車無線プロトコルヘッダの宛先に移動局装置３０の識別子を設定し、当該電文を第４通信方式で送信する。当該電文が基地局装置２０に受信されると、基地局装置２０がそれを第２通信方式で移動局装置３０へ転送する（ステップＳＴ２０７）。 Also, during the test, when the central office device 10 transmits a telegram addressed to the mobile station device 30, the central office device 10 sets the destination of the train radio protocol header of the telegram to be transmitted in the same manner as when the test is not performed. is set to the identifier of the mobile station apparatus 30, and the message is transmitted by the fourth communication method. When the message is received by base station apparatus 20, base station apparatus 20 transfers it to mobile station apparatus 30 using the second communication method (step ST207).
　詳細には、ステップＳＴ２０７では、中央局装置１０の列車無線プロトコル管理部１３１が、列車無線プロトコルヘッダの宛先を移動局装置３０に設定して、電文を汎用プロトコル管理部１３２へ送信する。汎用プロトコル管理部１３２は、当該電文を基地局装置２０の汎用プロトコル管理部２１２へ送信する。基地局装置２０の汎用プロトコル管理部２１２は、当該電文を受信すると、列車無線プロトコル管理部２１１へ当該電文を送信する。列車無線プロトコル管理部２１１は、当該電文の列車無線プロトコルヘッダの宛先が移動局装置３０であるため、当該電文を多重化部２２へ送信する。多重化部２２は、受信した電文を多重化して無線フレームの形で無線通信部２３へ送信する。無線通信部２３は、第２通信方式で、移動局装置３０の無線通信部３１へ当該無線フレームを送信する。その結果、中央局装置１０が送信した移動局装置３０宛の電文は、無線フレームの形で移動局装置３０に受信される。上記のステップＳＴ１０２も、これと同じ処理によって実施される。 Specifically, in step ST207, the train radio protocol management section 131 of the central office device 10 sets the destination of the train radio protocol header to the mobile station device 30 and transmits the message to the general protocol management section 132. The general-purpose protocol management unit 132 transmits the message to the general-purpose protocol management unit 212 of the base station device 20 . Upon receiving the telegram, the general-purpose protocol management unit 212 of the base station device 20 transmits the telegram to the train radio protocol management unit 211 . The train radio protocol management unit 211 transmits the message to the multiplexing unit 22 because the destination of the train radio protocol header of the message is the mobile station device 30 . The multiplexing unit 22 multiplexes the received message and transmits it to the wireless communication unit 23 in the form of a wireless frame. The radio communication unit 23 transmits the radio frame to the radio communication unit 31 of the mobile station device 30 using the second communication method. As a result, the telegram addressed to the mobile station device 30 transmitted by the central office device 10 is received by the mobile station device 30 in the form of a radio frame. The above step ST102 is also implemented by the same processing.
　ステップＳＴ２０４およびステップＳＴ２０６により、中央局装置１０の指令電話機と対向装置４０との通話試験や、保守端末から対向装置４０の状態監視の試験が可能となり、中央局装置１０の機能健全性を確認することができる。なお、本実施の形態では、ステップＳＴ２０５で示したように、試験中でも基地局装置２０が移動局装置３０から送信された電文を中央局装置１０に転送することができるため、基地局装置２０に移動局装置３０が在線し、中央局装置１０と通信することが可能である。 Through steps ST204 and ST206, a communication test between the command telephone of the central office equipment 10 and the opposite equipment 40 and a test of status monitoring of the opposite equipment 40 from the maintenance terminal are possible, and the functional soundness of the central office equipment 10 is confirmed. be able to. In this embodiment, as shown in step ST205, base station apparatus 20 can transfer telegrams transmitted from mobile station apparatus 30 to central station apparatus 10 even during testing. A mobile station device 30 is on the line and can communicate with the central office device 10 .
　試験を終了する場合は、対向装置４０が、第３通信方式で、折り返し停止を意味する基地局装置２０宛の電文を送信する。基地局装置２０は、折り返し停止を意味する電文を受信すると、中央局装置１０から受信した電文の転送先として登録されている対向装置４０の識別子を削除する（ステップＳＴ２０８）。これにより、対向装置４０は使用できなくなる。 When ending the test, the counterpart device 40 transmits a telegram to the base station device 20, meaning to stop calling back, using the third communication method. When base station apparatus 20 receives the telegram indicating stop of return, base station apparatus 20 deletes the identifier of opposite apparatus 40 registered as the transfer destination of the telegram received from central office apparatus 10 (step ST208). As a result, the opposing device 40 becomes unusable.
　詳細には、ステップＳＴ２０８では、対向装置４０の監視制御部４２が、折り返し停止を意味する電文を列車無線プロトコル管理部４１１へ送信する。列車無線プロトコル管理部４１１は、列車無線プロトコルヘッダの宛先を基地局装置２０に設定し、当該電文を汎用プロトコル管理部４１２へ送信する。汎用プロトコル管理部４１２は、基地局装置２０の汎用プロトコル管理部２１２へ電文を転送する。基地局装置２０の汎用プロトコル管理部２１２は、列車無線プロトコル管理部２１１へ電文を送信する。列車無線プロトコル管理部２１１は、当該電文の列車無線プロトコルヘッダの宛先が基地局装置２０であるため、当該電文を解釈する。列車無線プロトコル管理部２１１は、当該電文が折り返し登録解除を意味すると解釈すると、対向装置４０は非在線であると認識する。 Specifically, in step ST208, the monitor control unit 42 of the opposing device 40 transmits a telegram indicating stoppage to the train radio protocol management unit 411. The train radio protocol management unit 411 sets the destination of the train radio protocol header to the base station device 20 and transmits the message to the general protocol management unit 412 . The general-purpose protocol management unit 412 transfers the message to the general-purpose protocol management unit 212 of the base station device 20 . The general-purpose protocol manager 212 of the base station device 20 transmits the message to the train radio protocol manager 211 . The train radio protocol management unit 211 interprets the message because the destination of the train radio protocol header of the message is the base station device 20 . When the train radio protocol management unit 211 interprets the telegram to mean cancellation of the return registration, it recognizes that the opposite device 40 is not on the line.
　このように、実施の形態２に係る列車無線通信システムにおける中央局装置１０の試験は、基地局装置２０が中央局装置１０からの電文を対向装置４０へ折り返すことによって行われるため、当該試験では、無線通信の方式である第２通信方式は用いられず、有線通信の方式である第３通信方式および第４通信方式のみが用いられる。従って、地理的な制約を受けることなく、中央局装置１０の試験を行うことができる。 As described above, the test of the central station device 10 in the train radio communication system according to Embodiment 2 is performed by the base station device 20 returning the message from the central station device 10 to the opposite device 40. Therefore, in the test, , the second communication method, which is a wireless communication method, is not used, and only the third and fourth communication methods, which are wired communication methods, are used. Therefore, the central office device 10 can be tested without being subject to geographical restrictions.
　また、中央局装置１０の列車無線プロトコル管理部１３１、基地局装置２０の列車無線プロトコル管理部２１１、および、対向装置４０の列車無線プロトコル管理部４１１が、列車無線通信システム内で送受信される電文の宛先を管理することで、基地局装置２０が、中央局装置１０からの電文の転送先を、その宛先に応じて動的に切り替えることできる。よって、試験中においても移動局装置３０と中央局装置１０との間の通信を行うことができるため、試験中に移動局装置３０を在線させることもできる。 Also, the train radio protocol management unit 131 of the central station device 10, the train radio protocol management unit 211 of the base station device 20, and the train radio protocol management unit 411 of the opposite device 40 receive and transmit telegrams within the train radio communication system. By managing the destination, the base station device 20 can dynamically switch the transfer destination of the message from the central office device 10 according to the destination. Therefore, since communication between the mobile station apparatus 30 and the central station apparatus 10 can be performed even during the test, the mobile station apparatus 30 can be on-line during the test.
　なお、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略したりすることが可能である。 It should be noted that it is possible to freely combine each embodiment, and to modify or omit each embodiment as appropriate.
　上記した説明は、すべての態様において、例示であって、例示されていない無数の変形例が想定され得るものと解される。 It is understood that the above description is an example in all aspects, and that countless variations not illustrated can be assumed.
　１０　中央局装置、１１　呼制御部、１２　監視制御部、１３　通信制御部、１３１　列車無線プロトコル管理部、１３２　汎用プロトコル管理部、２０　基地局装置、２０Ｎ　新基地局装置、２０Ｌ　旧基地局装置、２１　通信制御部、２１１　列車無線プロトコル管理部、２１２　汎用プロトコル管理部、２２　多重化部、２３　無線通信部、３０　移動局装置、３１　無線通信部、３２　多重化部、３３　呼制御部、３４　端末制御部、３５　音声制御部、４０　対向装置、４１　通信制御部、４１１　列車無線プロトコル管理部、４１２　汎用プロトコル管理部、４２　監視制御部、４３　呼制御部、４４　音声制御部、４５　操作部。 10 central office device, 11 call control unit, 12 supervisory control unit, 13 communication control unit, 131 train radio protocol management unit, 132 general protocol management unit, 20 base station device, 20N new base station device, 20L old base station device, 21 communication control unit, 211 train radio protocol management unit, 212 general protocol management unit, 22 multiplexing unit, 23 radio communication unit, 30 mobile station device, 31 radio communication unit, 32 multiplexing unit, 33 call control unit, 34 terminal Control unit, 35 voice control unit, 40 opposite device, 41 communication control unit, 411 train radio protocol management unit, 412 general protocol management unit, 42 monitoring control unit, 43 call control unit, 44 voice control unit, 45 operation unit.

Claims (4)

  1. 　列車に搭載される移動局装置と、
    　地上に設置される中央局装置と、
    　地上に設置され、前記中央局装置から送信された電文を前記移動局装置へ転送し、前記移動局装置から送信された電文を前記中央局装置へ転送する基地局装置と、
    を備え、
    　前記中央局装置の試験が行われるとき、前記基地局装置は、前記中央局装置から送信された電文の転送先を試験用の対向装置へ切り替える、
    列車無線通信システム。     a mobile station device mounted on a train;
    a central office device installed on the ground;
    a base station device that is installed on the ground and transfers telegrams transmitted from the central station device to the mobile station device and transmits telegrams transmitted from the mobile station device to the central station device;
    with
    When the central office device is tested, the base station device switches the transfer destination of the message transmitted from the central office device to the opposite device for testing,
    Train radio communication system.
  2. 　前記移動局装置と前記基地局装置との間の通信は無線通信で行われ、
    　前記中央局装置と前記基地局装置との間の通信ならびに前記基地局装置と前記対向装置との間の通信は有線通信で行われる、
    請求項１に記載の列車無線通信システム。     Communication between the mobile station device and the base station device is performed by wireless communication,
    Communication between the central station device and the base station device and communication between the base station device and the opposite device are performed by wired communication,
    A train radio communication system according to claim 1.
  3. 　前記中央局装置の試験が行われるとき、前記中央局装置は、宛先が前記移動局装置か前記対向装置かを示す識別子を付与した電文を前記基地局装置へ送信し、前記基地局装置は、前記中央局装置から受信した電文の転送先を、当該電文の前記識別子が示す宛先に応じて切り替える、
    請求項１または請求項２に記載の列車無線通信システム。     When the central station device is tested, the central station device transmits to the base station device a message with an identifier indicating whether the destination is the mobile station device or the remote device, and the base station device: switching the forwarding destination of the electronic message received from the central office device according to the destination indicated by the identifier of the electronic message;
    The train radio communication system according to claim 1 or 2.
  4. 　前記基地局装置は、前記中央局装置の試験が行われるときも、前記中央局装置から送信された電文を前記移動局装置へ転送する、
    請求項３に記載の列車無線通信システム。     The base station device transfers the message transmitted from the central station device to the mobile station device even when the central station device is tested.
    A train radio communication system according to claim 3.
PCT/JP2022/006698 2022-02-18 2022-02-18 Train radio communication system WO2023157245A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009225135A (en) * 2008-03-17 2009-10-01 Hitachi Ltd Method for selecting frequency channel in train radio communication system and on-board radio terminal
WO2019014806A1 (en) * 2017-07-17 2019-01-24 Nokia Solutions And Networks Oy Communication apparatus, method and computer program

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009225135A (en) * 2008-03-17 2009-10-01 Hitachi Ltd Method for selecting frequency channel in train radio communication system and on-board radio terminal
WO2019014806A1 (en) * 2017-07-17 2019-01-24 Nokia Solutions And Networks Oy Communication apparatus, method and computer program

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