JP4666513B2 - Train information transmission device - Google Patents

Description

  The present invention relates to a train information transmission apparatus for controlling a train by exchanging information between the ground and a train, and particularly relates to facilitating the detection of a ground fault and facilitating additional installation.

  An information transmission device using a transponder is used to transmit information between a traveling train and the ground at high density. The information transmission device using this transponder transmits a power wave from the vehicle upper element mounted on the train to the ground side, and the ground element transmits information to the vehicle upper element using the received power wave as energy. In this way, the ground unit does not require a power cable, a battery, or the like, and temporary speed limitations can be dealt with by simply installing the ground unit.

  The non-powered ground unit using this transponder is not connected to other ground facilities, so when a failure of the internal circuit, etc. occurs, the failure of the non-powered ground unit cannot be output to other ground facilities. For this reason, it has been necessary to periodically check the operating state of the non-powered ground unit by an operator, a test vehicle or the like to determine whether or not there is a failure.

  In order to solve this problem, for example, as shown in Patent Document 1, a ground unit having a failure detection function is disclosed. This ground unit is output from a plurality of message ROMs that can output a predetermined message corresponding to each indication of the traffic light and a predetermined message corresponding to one indication other than the corresponding indication. When two identical telegrams are collated, and the collation results match, a predetermined telegram corresponding to the indication of the traffic light is selected from a plurality of telegram ROMs, and the vehicle upper element is transmitted, and collation If the result does not match, a message with a signal indicating that there is a mismatch in the message is sent to the vehicle child so that the train can detect that an abnormality has occurred on the ground child .

  In the train information communication method disclosed in Patent Document 2, each ground element has an identification code indicating installation position information, and the on-board device stores the reception order of each ground element in advance. Then, when the vehicle upper element and each ground element are combined while the train is running, information having an identification code indicating the installation position information is transmitted from each ground element to the vehicle upper element, and the on-board device transmits the transmitted identification code and The received reception order is confirmed by comparing the stored reception order with the transmitted identification codes. And even if an abnormality occurs in a certain ground element and it is combined with the vehicle upper element, no information is transmitted, the identification code transmitted in combination with the next ground element is received, the reception order is compared, and the reception order Are different from each other, it is determined that an abnormality has occurred in the ground element whose reception order is one before the ground element that has received the identification code.

Moreover, the train control apparatus shown by patent document 3 memorize | stores the installation position information of each ground element in the on-board apparatus, and the train traveled while detecting the traveling position of the train, and passed the installation position of the ground element. Even if this is detected, if predetermined information is not received from the ground unit, it is determined that an abnormality has occurred in the ground unit.
JP 2001-199335 A JP 2001-322547 A JP-A-2005-349945

  As shown in Patent Document 1, if the ground unit has a failure detection function, the configuration of the ground unit becomes complicated and expensive. In addition, if the ground unit is physically broken, no information is output, so that a failure cannot be detected.

  Also, as shown in Patent Document 2 and Patent Document 3, if the receiving order and installation position information of each ground unit are stored in the on-board device, the configuration of the on-board device becomes complicated and the ground unit is added. When installed, it is necessary to change the reception order and installation position information of all ground elements stored in the on-board devices of all trains.

  The present invention provides a train information transmission device that improves such disadvantages and can detect a ground fault in a train with a simple configuration and can easily perform additional installation of the ground element. It is intended.

The train information transmission device of the present invention has a ground element installed for each predetermined section along the track, an on-board device and an on-board element mounted on the train, and the ground element has an own ground element identification code and When the next ground element identification code is stored in advance and combined with the vehicle upper element, digital information obtained by adding several bits of the own ground element identification code and the next ground element identification code to predetermined train control information is stored in the vehicle. The on-board device has a transmission / reception unit and a ground unit information determination unit, and the transmission / reception unit receives digital information transmitted from the ground unit via the vehicle unit, and the ground unit The information determination unit extracts a self-ground element identification code and a next ground element identification code from the digital information received by the transmission / reception unit, stores the extracted next ground element identification code, and extracts the extracted ground element identification code and the next Before storing the ground code Receiving unit to see if the next ground coil identification code previously stored extracted from the newest digital information received from the ground terminal at the back in the traveling direction of the train matches the extracted own balise identification If the code does not match the previously stored next ground element identification code, it is determined that a failure has occurred in the ground element that is one rear in the traveling direction of the train from the ground element that transmitted the digital information. .

  The ground unit receives a power wave from the vehicle upper unit and transmits digital information to the vehicle upper unit.

In the present invention, digital information including a self-ground element identification code and a next ground element identification code is transmitted from each ground element, and the ground element information determination unit of the on-board device determines the next ground element identification code included in the received digital information. Store and check whether the self-ground element identification code matches the next ground element identification code previously extracted from the latest digital information received from the ground element behind the direction of travel of the train. If the ground element identification code does not match the previously stored next ground element identification code, it is determined that the ground element immediately before the train traveling direction is out of order from the ground element that transmitted the digital information. With the configuration, the operating state of each ground unit can be reliably detected by the train. Accordingly, it is possible to reduce the number of periodic inspections by workers, inspection vehicles, and the like.

  In addition, when adding a ground element, the next ground element identification code stored in the ground element immediately before the traveling direction of the train is changed to the own ground element identification code to be added and added. It is only necessary to store the self-ground element identification code and the self-ground element identification code of the ground element one ahead of the train traveling direction as the next ground element identification code in the child, and there is no need to take any action on the on-board device. , Ground child can be added easily.

  FIG. 1 is a block diagram showing the configuration of the train information transmission apparatus of the present invention. The train information transmission device includes transponder-type ground elements 2 a to 2 c provided for each predetermined section along the track 1 and an on-board device 4 mounted on the train 3.

As shown in the block diagram of FIG. 2, the ground elements 2 a to 2 c include a power wave receiving coil 5, a rectifying unit 6, an information generating unit 7, a transmitting unit 8, and an information transmitting coil 9. The power wave receiving coil 5 receives a power wave transmitted from the train 3. The rectifying unit 6 converts the power wave received by the power wave receiving coil 5 into DC power and outputs it. The information generation unit 7 stores in advance train control information, a self-ground element identification code, and a next ground element identification code that is an identification code of the next ground element, and when DC power is output from the rectifying unit 6, the train control information Digital information to which a several-bit self-ground identification code and next-ground identification code are added is output. The transmission unit 8 modulates the digital information output from the information generation unit 7 and transmits it to the train 3 via the information transmission coil 9.

  As shown in the block diagram of FIG. 3, the on-board device 4 includes a transmission / reception unit 10, a speed checking unit 11, a ground element information determination unit 12, and a control unit 13. The transmission / reception unit 10 transmits a power wave to the ground via the power wave transmission coil of the vehicle upper element 14 and receives digital information transmitted from the ground via the information reception coil of the vehicle upper element 14. The speed checking unit 11 reads train control information included in the digital information received by the transmission / reception unit 10 and checks the speed of the train 3 to generate a speed pattern. The ground unit information determination unit 12 reads the local unit identification code and the next ground unit identification code included in the digital information received by the transmission / reception unit 10, stores the next ground unit identification code, The operation state of the ground unit is determined by checking whether or not the stored next ground unit identification code matches. The control unit 13 controls the speed of the train 3 with the speed pattern generated by the speed checking unit 11 and displays and notifies the determination result of the ground element information determination unit 12.

  A process when detecting the failure state of each of the ground elements 2a to 2c with this train information transmission device will be described with reference to the flowchart of FIG.

As shown in FIG. 1, for example, a 2-bit self-ground element identification code “01” and a next ground element identification code “10” are stored in the ground element 2a in advance, and the ground element 2b has a self-ground element identification code “10”. 10 "and the next ground element identification code" 11 "are stored in advance, and the own ground element identification code" 11 "and the next ground element identification code" 01 "are stored in advance in the ground element 2c. In this state, the train 1 reaches the installation position of the ground unit 2a and receives the power wave transmitted from the transmission / reception unit 10 of the on-board device 3 via the vehicle unit 14 by the power wave receiving coil 5 of the ground unit 2a. When the DC power is output from the rectifying unit 6, the information generating unit 7, as shown in FIG. 5, includes the 2-bit local ground identification code “01” and the next ground ground identification code “10” in the train control information. Is repeatedly output as an HDLC frame structure 15, and this digital information is transmitted from the transmission unit 8 to the train 3 via the information transmission coil 9. When the transmitting / receiving unit 10 of the on-board device 3 receives the digital information transmitted from the ground unit 2a via the on-board unit 14 (step S1), the ground unit information determining unit 12 identifies the self-ground unit from the received digital information. The code "01" and the next ground element identification code "10" are extracted (step S2), the next ground element identification code "10" is stored (step S3), and the own ground element identification code "01" is stored first. It is confirmed whether or not it coincides with the next ground element identification code (step S4). As a result of the confirmation, if the own ground element identification code “01” matches the previously stored next ground element identification code, it is determined that the ground element 2a is operating normally (steps S5 and S6).

  In this state, the train 3 travels (step S7). For example, as shown in FIG. 6, even if the train 3 reaches the position of the ground element 2b, the position of the ground element 2c is not received without receiving digital information from the ground element 2b. When the digital information transmitted by the ground unit 2c is received by the transmission / reception unit 10 (step S1), the ground unit information determination unit 12 determines from the received digital information the own ground unit identification code “11” and the next ground unit identification code “ 01 ”is extracted (step S2), the next ground child identification code“ 01 ”is stored (step S3), and the own ground child identification code“ 11 ”matches the previously stored next ground child identification code“ 10 ”. (Step S4), and if the next ground child identification code “11” does not match the previously stored next ground child identification code “10”, it is behind the ground child 2c in the traveling direction of the train 3. The ground child 2b There is judged to have occurred, it outputs the balise abnormality signal to the control unit 13 (step S5, S6). When the ground unit abnormality signal is sent, the control unit 13 displays a warning on the cab or the like. This process is repeated until the train 1 finishes traveling in all sections (step S7).

  In this way, each ground element 2a to 2c transmits digital information including the own ground element identification code and the next ground element identification code, and the next ground area included in the digital information received by the ground element information determination unit 12 of the on-board device 3. The child identification code is stored, and whether or not the own ground child identification code matches the previously stored next ground child identification code, the own ground child identification code matches the previously stored next ground child identification code. If it is not, it is determined that the ground element in front of the traveling direction of the train is out of order. Therefore, the operation state of each ground element 2a to 2c can be detected by the train 3 with a simple configuration. Accordingly, it is possible to reduce the number of periodic inspections of the ground elements 2a to 2c by an operator, an inspection vehicle, or the like.

  Further, as shown in FIG. 7, for example, when adding a ground element 2n between the ground element 2b and the ground element 2c, the next ground element identification code “11” stored in the ground element 2b is set to the own ground level of the ground element 2n. The child identification code is changed to “01”, and the self-ground element identification code “01” and the self-ground element identification code “11” of the next ground element 2c are simply stored as the next ground element identification code “11” in the ground element 2n. It is not necessary to perform any treatment on the on-board device 3, so that the ground element 2n can be easily added.

  In the above description, the case where the present invention is applied to a system using a transponder type non-powered ground element is described. However, a system using a powered ground element supplied with power from the outside, or a non-powered ground element and a powered ground element are used. The same applies to the combined system.

It is a block diagram which shows the structure of the train information transmission apparatus of this invention. It is a block diagram which shows the structure of a ground unit. It is a block diagram which shows the structure of a vehicle-mounted apparatus. It is a flowchart which shows the process which detects the operation state of a ground unit. It is a schematic diagram which shows the structure of the digital information transmitted from a ground unit. It is a block diagram which shows the case where a failure generate | occur | produces in one of the ground children. It is a block diagram which shows the state which added the ground child.

Explanation of symbols

1; track, 2; ground element, 3; train, 4; on-board device, 5; power wave receiving coil,
6; rectification unit, 7; information generation unit, 8; transmission unit, 9; information transmission coil, 10; transmission / reception unit,
11; Speed check section, 12; Ground element information determination section, 13; Control section, 14;
15: Frame configuration.

Claims (2)

It has a ground element installed in every predetermined section along the track, an on-board device and an on-board element mounted on the train,
The ground unit stores a ground unit identification code and a next ground unit identification code in advance, and when combined with the vehicle unit, a predetermined number of bits of the ground unit identification code and the next ground unit are added to predetermined train control information. Sending digital information with a child identification code to the vehicle upper child,
The on-board device includes a transmission / reception unit and a ground unit information determination unit, the transmission / reception unit receives digital information transmitted from the ground unit via the vehicle unit, and the ground unit information determination unit includes the transmission / reception unit. The self ground identification code and the next ground identification code are extracted from the digital information received by the unit, the extracted next ground identification code is stored, and the extracted next ground identification code and the extracted next ground identification code are stored. Before the transmission / reception unit extracted from the latest digital information received from the ground unit behind the traveling direction of the train and confirmed whether or not the next ground unit identification code stored previously matches, and extracted If the own ground element identification code does not match the previously stored next ground element identification code, it is determined that a failure has occurred in the ground element that is one rear in the traveling direction of the train from the ground element that transmitted the digital information. Features Train information transmission devices.   The train information transmission device according to claim 1, wherein the ground unit receives a power wave from the vehicle upper unit and transmits digital information to the vehicle upper unit.

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