JP5916570B2 - Train communication system and train communication method - Google Patents

Description

  The present invention relates to a train communication system that performs communication between a train and the ground side.

  Conventionally, as a technique for improving the reliability of a railway system, for example, in Patent Document 1 below, a notch signal drive that outputs a notch signal in response to a notch signal in a master controller installed in a cab of a railway vehicle , A CPU for performing failure detection processing, and two sets of input / output interface units for the CPU are provided, and a technology is disclosed in which a system is switched to the remaining healthy system when one system fails.

  Further, in the railway system, when communication is performed between the ground side and the train using wireless communication technology, there is a method of handling one train or train as one domain, which is disclosed in Patent Document 2 below, for example. . Specifically, the domain name control device includes a train diagram database (DB), a vehicle operation database (DB), and a travel performance database (DB) as a train operation system. Based on the contents of these databases, a DNS (Domain Name System) data is registered and deleted. The apparatus on the ground side performs communication with the train side with reference to the registered DNS data.

Japanese Patent Laid-Open No. 10-80009 JP 2003-60670 A

  However, according to the conventional technique (Patent Document 1), there is a problem that there is no provision when a communication facility fails.

  Further, according to the conventional technique (Patent Document 2), when changing the communication device or the IP address of the computer, such as when replacing the communication device or computer on the vehicle due to a failure or the like, it is changed on the ground side. It is necessary to correct the IP address every time. Therefore, there is a problem that the management load increases when the number of vehicles increases.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a train communication system capable of reducing the management load of setting change on the ground side when a communication device on a vehicle is replaced.

  In order to solve the above-described problems and achieve the object, the present invention provides a train communication system including an on-board system mounted on a train and a ground system installed on the ground, wherein the on-board system is When an on-board communication control device is provided, and the ground system includes a communication control server and a train control terminal, the on-board communication control device is mounted when the device is first started after replacement in the train. A train start number storing the train number, train number, and address information of the own device is transmitted to the communication control server, and the communication control server is configured to generate a train train number, a train based on the launch notification. The registration information of the number and address is changed, and the on-board communication control of the control target train is generated from the ground system with the data required for control of the control target train generated by the train control terminal. When sending the location, using the address registered in the communication control server, and wherein the.

  According to this invention, when exchanging the communication apparatus on a vehicle, there exists an effect that the management load of the setting change on the ground side can be reduced.

FIG. 1 is a diagram illustrating a configuration example of a train communication system according to the first embodiment. FIG. 2 is a diagram illustrating a configuration example of the on-vehicle communication control device according to the first embodiment. FIG. 3 is a diagram illustrating a configuration example of the communication control server according to the first embodiment. FIG. 4 is a sequence diagram illustrating a process of changing the train number according to the first embodiment. FIG. 5 is a diagram illustrating a configuration example of registration information held by the server registration information holding unit according to the first embodiment. FIG. 6 is a diagram illustrating a configuration example of data transmitted from the train control terminal. FIG. 7 is a sequence diagram illustrating a process of communicating by specifying a train number according to the second embodiment. FIG. 8 is a sequence diagram illustrating a process of changing the train number according to the third embodiment. FIG. 9 is a diagram illustrating a configuration example of registration information held by the server registration information holding unit according to the third embodiment.

  Hereinafter, embodiments of a train communication system according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a configuration example of a train communication system according to the present embodiment. The train communication system includes an on-vehicle system 1 and a ground system 5, and the two systems are connected via a network 4. For convenience of explanation, FIG. 1 shows a single on-board system 1, but this is not a limitation. The ground system 5 can be connected to a plurality of on-vehicle systems 1 mounted on different trains via the network 4.

  The on-board system 1 is mounted on a train and executes an application in accordance with data such as train number, train number setting, and operation information received from the ground system 5. The ground system 5 acquires and holds information on the train number, train number, and IP address of the train on which the on-board system 1 is mounted from the on-board system 1, and the on-board system 1 loads data such as operation information. Used when communicating with a train The network 4 is an existing line using a wireless communication technology such as a mobile phone or a wireless LAN.

  The configuration of the on-vehicle system 1 will be described. The on-board system 1 includes an on-board communication control device 2 and an application execution unit 3. The on-vehicle communication control device 2 transmits a start-up notification storing information on the composition number, train number, and IP address to the ground system 5 when the device is activated. The application execution unit 3 executes the application according to data such as operation information received from the ground system 5. For example, it is possible to control the air conditioning, electric power, motor, etc. in the train as necessary according to the received data.

  The configuration of the ground system 5 will be described. The ground system 5 includes a router 6, a switch (SW) 7, a communication control server 8, and a train control terminal 9. The router 6 is a communication device that connects the ground system to the network 4. The switch 7 is a communication device that is connected to the communication control server 8 and relays communication of the communication control server 8. The communication control server 8 acquires and holds information on the train number, train number, and IP address of the train on which the on-board system 1 is mounted from the on-board system 1, and between the on-board system 1 and the train control terminal 9. Control communication. The train control terminal 9 generates data necessary for train control, such as operation information, with the train number or train number of the train to be communicated as a destination, and transmits the data to the communication control server 8. In the ground system 5, the communication control server 8 transmits the data generated by the train control terminal 9 to the on-train system 1 on the train corresponding to the train number and the train number. The air conditioner, electric power, motor, etc. of the train can be controlled to manage travel information from the train.

  FIG. 2 is a diagram illustrating a configuration example of the on-vehicle communication control device 2 according to the present embodiment. The onboard communication control device 2 includes an onboard registration information processing unit 21, an onboard registration information holding unit 22, an onboard control unit 23, and an onboard communication unit 24. The on-board registration information processing unit 21 receives input of changes such as a composition number and a train number from a maintenance staff or a crew member, and changes the contents of the on-board registration information holding unit 22. Moreover, you may provide a display part so that a maintenance worker or a crew member can confirm. The on-vehicle registration information holding unit 22 is a storage unit that holds information on the current train number, train number, and IP address of the train on which the system is mounted. The on-board controller 23 performs control to transmit a startup notification to the ground system 5 side when the train is started. The on-vehicle communication unit 24 performs a process of transmitting a startup notification to the ground system 5 side and receiving data from the ground system 5. The on-vehicle communication unit 24 transfers the data received from the ground system 5 to the application execution unit 3.

  FIG. 3 is a diagram illustrating a configuration example of the communication control server 8 according to the present embodiment. The communication control server 8 includes a server registration information processing unit 81, a server registration information holding unit 82, a server control unit 83, and a server communication unit 84. The server registration information processing unit 81 receives the train number, train number, and IP address notified from each train, and changes the contents of the server registration information holding unit 82. In addition, a display unit may be provided so that a system administrator or the like can check. The server registration information holding unit 82 is a storage unit that holds information on the train number, current train number, and IP address of a train connected to the own system. When the server control unit 83 receives a start-up notification from the on-board system 1 side, the server control unit 83 performs control to register or change the content in the server registration information holding unit 82 via the server registration information processing unit 81. Control for transmitting data such as operation information received from the control terminal 9 to the on-board system 1 and control for transmitting data received from the on-board system 1 to the train control terminal 9 are performed. The server communication unit 84 transmits data such as operation information to the on-board system 1 side, performs a process of receiving a start-up notification from the on-board system 1, and transmits the data received from the on-board system 1 to the train. Processing to transmit to the control terminal 9 side is performed.

  Next, in the train communication system, as a train communication method, a process when the on-board communication control device installed in the train fails and is replaced with a new on-board communication control device 2 will be described. FIG. 4 is a sequence diagram showing processing for exchanging the on-board communication control device in the present embodiment. The on-board communication control measure 2 is stored with the IP address 192.168.0.2, the organization number 0, and the train number 0 set. The control device 2 is installed. As the train number and train number of the on-board communication control device 2 to be installed, the same train number H1 and train number A1 as the on-board communication control device before the failure are set, and the on-board registration information holding unit of the on-board communication control device 2 The on-board communication control device 2 is started up (step S1). In the on-board communication control device 2, the on-board control unit 23 transmits a start-up notification indicating that the device has been activated to the communication control server 8 via the on-board communication unit 24 (step S2). The start-up notification includes information on the organization number H1, train number A2, and IP address 192.168.0.2.

  In the communication control server 8, the server communication unit 84 receives the startup notification, and the server control unit 83 changes the content of the registration information in the server registration information holding unit 82 via the server registration information processing unit 81 (step S3). ). FIG. 5 is a diagram illustrating a configuration example of registration information held by the server registration information holding unit 82 according to the present embodiment. The registration information includes a registration number (No.), a composition number, a train number, and an IP address. Here, as shown in FIG. As shown in FIG. 5B, the registration information having the composition number H1, train number A1, and IP address 192.168.0.1 as No. 1 is No. 1 indicates that it is registered in the server registration information holding unit 82 as the organization number H1, train number A1, and IP address 192.168.0.2. In FIG. 5, the server registration information holding unit 82 holds only the registration information of the train with one train number, but is an example, and registration information can be held for a plurality of trains.

  Next, in the train control terminal 9, when it is necessary to control the state of the train, such as air conditioning, with respect to the train having the formation number H1, control data specifying the formation number H1 as a control target is transmitted to the communication control server. 8 (step S4). FIG. 6 is a diagram illustrating a configuration example of data transmitted by the train control terminal 9. The data includes areas of a communication destination address 61 (communication control server), a control target 62 (composition number H1), and control data 63. A communication destination address 61 (communication control server) and a control target 62 (organization number H1) are set in the communication header 64, and control data 63 is stored in the communication data 65.

  In the communication control server 8, when the control data is received by the server communication unit 84, the server control unit 83 confirms the content of the server registration information holding unit 82 via the server registration information processing unit 81, and the IP address for the composition number H1. 192.168.0.2 is acquired (step S5). In the communication control server 8, the server control unit 83 sets the acquired IP address as the communication destination address of the communication header, and controls the on-vehicle communication control device 2 with the composition number H1 via the server communication unit 84. Data is transmitted (step S6).

  In the on-vehicle communication control device 2 for the train having the composition number H1, the on-vehicle communication unit 24 transfers the received control data to the application execution unit 3. And the on-board communication part 24 receives the process result which performed control from the application execution part 3, and transmits this process result to the communication control server 8 as train control terminal data (step S7). Then, the communication control server 8 transmits the received train control terminal data to the train control terminal 9 (step S8). Thereby, in the train control terminal 9, the control data which designated the composition number is transmitted to the communication control server 8, and the communication control server 8 transmits data necessary for control to the on-vehicle communication control device 2 of the train to be controlled. Thus, the target train can be controlled.

  As described above, in the present embodiment, when the mechanic installs the on-board communication control device 2 instead of the failed on-board communication control device, the newly installed on-board communication control device 2 When starting for the first time after replacement, a start-up notification in which a composition number, a train number, and an IP address are set is transmitted to the communication control server 8. And the communication control server 8 decided to change the registration information currently hold | maintained based on the received starting notification. Thereby, it can prevent registering the IP address of a some train number with respect to the composition number. Moreover, since it is not necessary to correct the address changed on the ground system side every time when the on-board communication control device fails, it is possible to obtain a train communication system that can reduce the management load even when the number of vehicles increases.

  As described above, in the train communication system according to the present embodiment, the train control terminal 9 transmits the control data specifying the composition number as the control target to the communication control server 8, so that the on-board communication control device breaks down and is newly Even if it is a case where it changes to the IP address of the on-board communication control apparatus 2, in the train control terminal 9, it can communicate, without changing a communication procedure.

Embodiment 2. FIG.
In the first embodiment, the operation when the control data is transmitted from the train control terminal 9 by specifying the composition number as the control target after replacing the on-board communication control device has been described. In the present embodiment, after exchanging the on-vehicle communication control device, communication is performed by specifying the train number of the vehicle as a control target. A different part from Embodiment 1 is demonstrated.

  FIG. 7 is a sequence diagram showing processing for exchanging the on-board communication control device in the present embodiment. The configurations of the train communication system, the on-board communication control device 2, and the communication control server 8 in the present embodiment are the same as those in the first embodiment (see FIGS. 1 to 3). In addition, operation | movement until it replaces | exchanges for the new on-board communication control apparatus 2, transmits a start-up notification, and changes the server registration information of the communication control server 8 is the same as that of Embodiment 1 (step S1-S3). .

  Next, in the train control terminal 9, when it is necessary to control the state of the train, such as air conditioning, for the train with the train number A1, first, the train number is acquired to obtain the train number for the train number A1. A composition number solution request in which A1 is set is transmitted to the communication control server 8 (step S11).

  In the communication control server 8, when the server communication unit 84 receives the composition number resolution request, the server control unit 83 confirms the contents of the server registration information holding unit 82 via the server registration information processing unit 81, and The composition number H1 is acquired (step S12). In the communication control server 8, the server control unit 83 notifies the information on the formation number H1 for the train number A1 as a formation number solution response via the server communication unit 84 (step S13).

  When the train control terminal 9 needs to control the state of the train, such as air conditioning, for the train having the formation number H1, control data specifying the formation number H1 as a control target is transmitted to the communication control server 8. (Step S4). The subsequent processing up to step S8 is the same as in the first embodiment (see FIG. 4).

  As described above, in the present embodiment, when the train control terminal 9 specifies the train number of the vehicle and controls the train state, the train control terminal 9 inquires the communication control server 8 for the train number corresponding to the train number. Later, control data was transmitted to the train having the train number corresponding to the train number. As a result, a train communication system that can communicate with the train of the designated train number can be obtained without changing the address changed on the ground system side after replacing the on-board communication control device.

Embodiment 3 FIG.
In the present embodiment, the difference from Embodiments 1 and 2 will be described regarding the operation when the train arrives at the station and the crew changes the train number.

  FIG. 8 is a sequence diagram showing processing for exchanging the on-board communication control device in the present embodiment. The configurations of the train communication system, the on-board communication control device 2, and the communication control server 8 in the present embodiment are the same as those in the first embodiment (see FIGS. 1 to 3). The operation from the replacement to the new on-board communication control device 2, the transmission of the start-up notification, and the change of the server registration information of the communication control server 8 is the same as that in the first embodiment (steps S1 to S3). In this embodiment, the on-board communication control device 2 periodically transmits a periodic notification including information equivalent to the startup notification to the communication control server 8 (step S2 ′). The communication control server 8 confirms the composition number, train number, and IP address in the received periodic notification. If the contents of the server registration information match the notified contents, the communication control server 8 ends without changing the registration information.

  Here, the train arrives at the station, and the crew changes the train number from A1 to A2 (step S21). In the on-board communication control device 2, the contents of the on-board registration information holding unit 22 are changed from the on-board registration information processing unit 21. The on-board control unit 23 periodically transmits a periodic notification. After the train number is changed, the on-board control unit 23 transmits a periodic notification storing information on the train number H1, the train number A2, and the IP address 192.168.0.2. Transmit (step S2 ').

  In the communication control server 8, the server communication unit 84 receives the periodic notification, and the server control unit 83 confirms the composition number, train number, and IP address in the received periodic notification, and the contents of the server registration information and the train number are Therefore, the contents of the registration information stored in the server registration information holding unit 82 are changed via the server registration information processing unit 81 (step S3). FIG. 9 is a diagram illustrating a configuration example of registration information held by the server registration information holding unit 82. As shown in FIG. As shown in FIG. 9 (b), the registration information having the composition number H1, train number A1, IP address 192.168.0.2 as No. 1 is changed to No. 1 is registered in the server registration information holding unit 82 as the organization number H1, the train number A2, and the IP address 192.168.0.2. In FIG. 9, the server registration information holding unit 82 holds only the registration information of the train with one train number, but is an example, and registration information can be held for a plurality of trains.

  Next, in the train control terminal 9, when it is necessary to control the state of the train, such as air conditioning, for the train with the train number A2, first, the train number is acquired to obtain the train number for the train number A2. A composition number solution request in which A2 is set is transmitted to the communication control server 8 (step S22).

  In the communication control server 8, when the server communication unit 84 receives the composition number resolution request, the server control unit 83 confirms the contents of the server registration information holding unit 82 via the server registration information processing unit 81, and The composition number H1 is acquired (step S23). In the communication control server 8, the server control unit 83 notifies the information on the formation number H1 for the train number A2 via the server communication unit 84 as a formation number solution response (step S24).

  When the train control terminal 9 needs to control the state of the train, such as air conditioning, for the train having the formation number H1, control data specifying the formation number H1 as a control target is transmitted to the communication control server 8. (Step S4). The subsequent processing up to step S8 is the same as in the first and second embodiments (see FIGS. 4 and 7).

  As described above, in this embodiment, even when the train arrives at the station and the train number is changed, the train control terminal 9 specifies the train number of the vehicle to control the train state. After obtaining the train number corresponding to the changed train number by inquiring of the communication control server 8, the control data is transmitted to the train having the train number corresponding to the changed train number. Thereby, even when a train number changes, the effect similar to Embodiment 2 can be acquired.

  In addition, although Embodiment 1-3 demonstrated the case where communication with the train side and the ground was carried out, the object to move is not limited to a train, For example, also to a communication system with an aircraft, a ship, a bus, etc. Applicable.

  As described above, the train communication system according to the present invention is useful for a communication system in which one side that performs communication moves, and is particularly suitable for communication with a train.

  1 onboard system, 2 onboard communication control device, 3 application execution unit, 4 network, 5 ground system, 6 router, 7 switch (SW), 8 communication control server, 9 train control terminal, 21 onboard registration information processing unit , 22 On-vehicle registration information holding unit, 23 On-vehicle control unit, 24 On-vehicle communication unit, 81 Server registration information processing unit, 82 Server registration information holding unit, 83 Server control unit, 84 Server communication unit.

Claims (6)

A train communication system including an on-board system mounted on a train and a ground system installed on the ground, wherein the on-board system includes an on-board communication control device, and the ground system includes a communication control server and train control. If you have a terminal,
The on-vehicle communication control device comprises:
When the train starts for the first time after the exchange, the train set number of the own device, the train number, and the startup notification storing the address information of the own device is transmitted to the communication control server,
The train control terminal is
The train number of the train to be controlled is used to inquire the train control number of the train to be controlled to the communication control server, the train number notified from the communication control server is set as the control subject, Sending data necessary for control to the on-board communication control device via the communication control server,
The communication control server
When the train composition number, train number, and registration information of the train are changed based on the startup notification, and the train composition number is inquired from the train control terminal using the train number of the train to be controlled. Notifies the train control terminal of the train number of the target train,
When transmitting the data necessary for control of the control target train generated by the train control terminal from the ground system to the on-board communication control device of the control target train, the address registered in the communication control server is used.
A train communication system. Before Symbol vehicles on the communication control device,
The processing result by the vehicle control application executed according to the received data is transmitted to the train control terminal via the communication control server,
The train communication system according to claim 1. The on-vehicle communication control device comprises:
When the train number is changed, a periodic notification storing the changed train number is transmitted to the communication control server. When there is no change in the train number, the same content as the previous notification is sent at a specified interval. Sending a periodic notification to the communication control server;
The communication control server
If you receive a periodic notification with a content different from your own registration information, based on the periodic notification, change the registration information of the train composition number,
The train communication system according to claim 1 or 2. A train communication method in a train communication system including an on-board system mounted on a train and a ground system installed on the ground, wherein the on-board system includes an on-board communication control device, and the ground system controls communication. When equipped with a server and a train control terminal,
When the on-board communication control device is started for the first time after the exchange in the train, a start-up notification storing the train number on which the own device is installed, the train number, and the address information of the own device is sent to the communication control server. A launch notification step to send ,
The communication control server, based on the startup notification, a train composition number, a train number, a registration information change step for changing registration information of an address,
The train control terminal uses the train number of the train to be controlled, and uses the train number inquiry step for inquiring the train control number to the communication control server,
When the communication control server receives an inquiry from the train control terminal, a train number response step for notifying the train control terminal of the train number of the target train;
The train control terminal sets the notified train number as a control target, and transmits data necessary for controlling the train to the on-board communication control device via a communication control server,
Including
When transmitting the data necessary for control of the control target train generated by the train control terminal from the ground system to the on-board communication control device of the control target train, the address registered in the communication control server is used.
A train communication method characterized by the above. Before SL onboard communication control device, the result sent steps to be transmitted to the train control terminal processing results of the vehicle control application executed via the communication control server according to the data received,
The train communication method according to claim 4, further comprising: The on-board communication control device, when the train number is changed, a change notification step of transmitting a periodic notification storing the changed train number to the communication control server;
When the on-board communication control device does not change the train number, a periodic transmission step of transmitting a periodic notification having the same content as the previous notification to the communication control server at a specified interval;
When the communication control server receives a periodic notification of content different from its own registration information, a registration information update step for updating the registration information of the train organization number based on the periodic notification;
The train communication method according to claim 4 or 5, characterized by comprising:

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