JP6625751B2 - Train security system and method - Google Patents

Description

  The present invention relates to a train security system and a method thereof, and is particularly suitable for use in a train security system that performs a reset operation of an axle counter using a train security device.

  In a general railway, the position of a train is detected using an axle counter. The axle counter is provided with a detection device in which detectors are installed at both ends of one section. The detection device is a detector of the section start point, and adds a counter every time the train axle passes the section start point. Similarly, the detection device is a detector for the end point of the section, and decrements the counter every time the axle passes the end point of the section. If the value of the counter is zero by subtraction, it means that the train does not exist in that section and the next train can enter.

  As one of the train detection devices, for example, Patent Literature 1 discloses an invention for checking whether or not trains exist in a plurality of sections (hereinafter, referred to as on-rail).

JP 2015-33989 A

  By the way, in the axle counter, for example, when a power failure occurs, the record of the total number of passing axles in the section where the power failure occurred disappears. Further, there is a case where the orbit is uneven and the value of the counter does not become zero. In these cases, it is necessary to manually reset the axle counter, and at the time of resetting, it is necessary to confirm that there is no train on one section or a plurality of sections such as between stations (hereinafter referred to as a specific section) There is. In the conventional checking method, the station staff of both adjacent stations visually check and communicate with each other by telephone, and one station staff requests a reset, and the other station staff approves the reset to perform the reset. For this reason, when the distance between adjacent stations is wide, or when visibility is poor such as at night or in rainy weather, there is a problem that it is difficult to reliably confirm that no train is on the train.

  The present invention has been made in consideration of the above points, and prevents a human error and secures safety by suppressing a reset operation of an axle counter when a train is present between adjacent stations. And to propose a train security system and method.

  In order to solve such a problem, in the present invention, in a train security system for safely operating a train, a ground device for controlling a train, and at least disposed near both ends of a specific section of a traveling path and along a specific section A plurality of axle counters arranged side by side to detect the direction and number of axles of trains passing nearby, and a plurality of train security devices arranged at least near both ends of a specific section and arranged side by side along the specific section And one of the plurality of train security devices acquires the number of axles that have entered a specific section based on one of the plurality of axle counters, and includes a plurality of train security devices. The other train security device acquires the number of axles that have advanced from a specific section based on the other axle counter among the plurality of axle counters, and obtains one of the plurality of train security devices. The car security device and the other train security device of the plurality of train security devices communicate with each other, and the number of axles recognized by both train security devices is equal to each other, and the number of axles that have entered and the number of axles that have advanced have been reduced. If one of the plurality of train security devices recognizes that they are equal, one of the plurality of train security devices can transmit a reset signal to all axle counters in a specific section. did.

  Further, in the present invention, there is provided a train security method in a train security system for safely operating a train, wherein the train security system includes a ground device for controlling a train, and a train security system which is disposed at least in the vicinity of both ends of a specific section of a travel path. A plurality of axle counters arranged side by side along the section to detect the direction of trains passing through and the number of axles, and a plurality of counters arranged at least near both ends of the specific section and arranged along the specific section A first train security device among the plurality of train security devices, the first train security device acquiring the number of axles that have entered a specific section based on one axle counter of the plurality of axle counters. Step and the other train security device of the plurality of train security devices obtains the number of axles that have advanced from a specific section based on the other axle counter of the plurality of axle counters A second step, wherein one of the plurality of train security devices communicates with the other of the plurality of train security devices, and the number of axles recognized by both train security devices is equal to each other. And when the first and second train security devices match, a third step of enabling one of the plurality of train security devices to transmit a reset signal to all axle counters in the specific section is provided.

  Advantageous Effects of Invention According to the present invention, a train security system and method for preventing human error and ensuring safety by suppressing reset operation of an axle counter when a train is located between adjacent stations is realized. it can.

It is a figure explaining the train security system by an embodiment of the invention. 5 is a flowchart illustrating an example of an axle counter reset process according to the embodiment of the present invention. It is a flowchart of the train presence line confirmation processing between A station and B station by embodiment of this invention. 5 is a table of train location information held by each station according to the embodiment of the present invention.

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

(1) Configuration of Train Security System According to the Present Embodiment FIG. 1 shows an overall train security system 1 according to the present embodiment. The train security system 1 is a system for safely operating a train on a track 20 in a specific section (for example, between A station and B station). The train security system 1 includes an axle counter 10 for detecting the passage of a train, a ground device 14 for controlling the train, and a train security device 15 for ensuring that the instructions of the ground device 14 are protected.

  The axle counter 10 includes a detection device 11 that detects according to the axle passing through the train and an evaluator 16 that increases or decreases the count value according to the number of detected axles. The detecting device 11 and the evaluator 16 are connected by a cable or a communication line. In particular, the detection device 11 installed at the beginning of the specific section is the station A exit detector 101, and the detection device 11 installed last between the A station and B station is the station B entrance detector 102. .

  A plurality of axle counters 10 are installed between Station A and Station B. In FIG. 1, the axle counter 10 is an axle counter 10A managed at station A, an axle counter 10B managed at station B, and an axle counter 10E managed at the equipment room.

  The axle counter 10A counts the number of axles detected by the detection device 11A. The evaluator 16A counts the number of axles that have entered the area of the detection device 11A and the number of axles that have exited the area of the detection device 11A. The axle counter 10A includes an evaluator 16A and a detection device 11A.

  Similarly, the axle counter 10B counts the number of axles detected by the detection device 11B. The evaluator 16B counts the number of axles that have entered the area of the detector 11B and the number of axles that have exited the area of the detector 11B. The axle counter 10B includes an evaluator 16B and a detecting device 11B.

  Similarly, the axle counter 10E counts the number of axles detected by the detection device 11E. The evaluator 16E counts the number of axles that have entered the area of the detection device 11E and the number of axles that have exited the area of the detection device 11E. The axle counter 10E includes an evaluator 16E and a detecting device 11E.

  The signaling device 14A is connected to the interlocking logic unit 12A, the signaling device 14B is connected to the interlocking logic unit 12B, and the signaling device 14E is connected to the interlocking control unit 17. The signal devices 14B1 and 14B2 are connected to the interlocking logic unit 12B.

  The train security device 15 is installed at each station, and the interlocking logic unit 12 that controls the train security device 15 around each station, the man-machine interface unit 13 that receives the operation of station staff, and the equipment room that is installed in the equipment room between the stations. And an interlocking control unit 17 that controls the train security device 15 of FIG.

  In FIG. 1, the train security device 15 is a train security device 15A installed at station A, a train security device 15B installed at station B, and a train security device 15E installed in an equipment room. The train security device 15A includes a man-machine interface unit 13A and an interlocking logic unit 12A. Similarly, the train security device 15B includes a man-machine interface unit 13B and an interlocking logic unit 12B. The train security device 15E includes an interlock control unit 17. The interlocking logic units 12A and 12B and the interlocking control unit 17 are connected via a network 30.

(2) Axle counter reset processing according to the present embodiment FIG. 2 shows an example of a processing procedure of an axle counter reset processing in which the interlocking logic unit 12A resets the count value of the axle counter 10. The interlocking logic unit 12A resets the count values of all the axle counters 10 between the station A and the station B according to the processing procedure shown in FIG.

  When it is necessary to reset the count values of the evaluators 16A, 16B and 16E between the station A and the station B, the station staff of the station A visually confirms that there is no train between the station A and the station B. Thereafter, the station staff at the station A performs a reset operation of the axle counter 10 from the man-machine interface unit 13A and issues a reset request (SP101).

  The interlocking logic unit 12A receives the reset request from the man-machine interface unit 13A, and notifies the interlocking logic unit 12B via the network 30 that there is a reset request.

  The interlocking logic unit 12B informs the man-machine interface unit 13B that it is waiting for approval. The interlocking logic unit 12B waits for an approval operation from the station staff of the station B for a certain period of time via the man-machine interface unit 13B, and determines whether or not there is approval (SP102). If a negative result is obtained in this determination, the process returns to step SP101. The station staff at station B visually confirms that there is no train between station A and station B, and then performs an approval operation.

  If a positive result is obtained in step SP102, the interlocking logic unit 12B transmits the approval information to the interlocking logic unit 12A via the network 30. The interlocking logic unit 12A that has received the approval information performs a train location check process between the A station and the B station (SP103).

  FIG. 3 shows an example of a processing procedure of a train presence line confirmation process between the A station and the B station executed by the interlocking logic unit 12A. The interlocking logic unit 12A checks whether a train is present between the station A and the station B in accordance with the processing procedure shown in FIG.

  The interlocking logic unit 12A acquires, from the evaluator 16A, the number of axles (a) and the passing direction (b), which are the count values of the A station entrance / exit detector 101, that are the count values of the A station entrance / exit detector 101 (SP201). ).

  The interlocking logic unit 12A transmits the count value of the station A exit detector 101 to the interlocking logic unit 12B via the network 30.

  Upon acquiring the count value, the interlocking logic unit 12A determines whether there is an axle that has passed the A station entrance / exit detector 101 and whether the passing direction is the traveling direction (a> 0 & b = the traveling direction?) (SP202). ). If a negative result is obtained in this determination, the process proceeds to step SP206.

  When a positive result is obtained in step SP202, the interlocking logic unit 12A determines that the train is on the line between the station A and the station B (SP203). By this determination, the interlocking logic unit 12A updates the ascending line in the column T12 between A and B of the A station table T1 which is the table of the train line information shown in FIG.

  The A station table T1 is held by the interlocking logic unit 12A, and the B station table T2 is held by the interlocking logic unit 12B. The contents of the A-B column T12 of the A-station table T1 and the contents of the A-B column T21 of the B-station table T2 are constantly reflected via the network 30 so that the contents are changed. For example, it is checked whether a change has been made in a cycle of 500 milliseconds, and if there is a change, the contents of the change are reflected in both tables.

  In the present embodiment, a direction from station A to station B is defined as an upward direction, while a direction from station B to station A is defined as a downward direction. In the present embodiment, a total of two lines are laid on the railway track, one for the up train and one for the down train. For this reason, the A station table T1 and the B station table T2 in FIG.

  In addition, each table holds track information of each station between adjacent stations. For example, the B station table T2 includes an A-B column T21, which is information on the line between the A station and the B station, between the B station and the A station adjacent to the B station, and a C station adjacent to the B station on the other side. Between the B station and the C station.

  Since the station A is the first station, the line information is not stored in the column T11. As for the terminal station, only one column is held as in the case of the first station.

  After the interlocking logic unit 12A updates the A station table T1, the interlocking logic unit 12B sets the number of axles that have passed from the evaluator 16B to the B station entrance detector 102, which is the count value of the B station entrance detector 102 ( c) and the passing direction (d) are obtained (SP204).

  Upon acquiring the count value of the B station entrance detector 102, the interlocking logic unit 12B obtains the count value of the B station entrance detector 102 and the count value of the A station entrance detector 101 transmitted from the interlocking logic unit 12A. Compare with. That is, the interlocking logic unit 12B determines whether the number of axles that have passed through the station A entrance detector 101 is equal to the number of axles that have passed through the station B entrance detector 102, and whether the number of axles that have passed through the station A exit detector 101 has passed. It is determined whether the traveling direction of the axle is equal to the traveling direction of the axle that has passed through the B station entrance detector 102 (a = c & b = d?) (SP205). When the interlocking logic unit 12A obtains a negative result in this determination from the interlocking logic unit 12B and transmits the result via the train location information table, the interworking logic unit 12A ends the train location checking process between the A station and the B station.

  If a positive result is obtained in step SP205, the interlocking logic unit 12B determines that the train is not on the line between the station A and the station B (SP206). By this determination, the interlocking logic unit 12B updates the ascending line in the column T12 between A and B in the B station table T2 which is the table of the train location information shown in FIG.

  The contents of the A-B section T12 of the A-station table T1 and the contents of the A-B section T21 of the B-station table T2 are constantly updated via the network 30 so as to be kept the same. For this reason, the interlocking logic unit 12A recognizes that the train is not on the line between the station A and the station B.

  When the interlocking logic unit 12A obtains the information of the on-line or off-line by the train on-line confirmation processing between the A station and the B station, the interlocking logical unit 12A determines whether the train is off-line based on this information (SP104). ). If a negative result is obtained in this determination, the process returns to step SP101.

  When a positive result is obtained in step SP104, the interlocking logic unit 12A resets the count values of all the axle counters 10 between the station A and the station B (SP105).

  Specifically, the axle counter 10A is instructed to reset via the interlocking logic unit 12A, the axle counter 10B is instructed to reset via the interlocking logic unit 12B, and the axle counter 10E is reset via the interlocking control unit 17. Instruct.

(3) Effects of this Embodiment When resetting the axle counter 10, in addition to the work of the station staff of both stations confirming that the train is not on the line between both stations, the train security system 1 also performs the operations of both stations. Check that the train is not on the line. For this reason, when the train is present between the stations, by suppressing the reset operation of the axle counter, human error can be prevented and safety can be ensured.

(4) Other Embodiments In the above-described embodiment, the case where the axle counter 10 is managed one by one at the station A, the station B, and the equipment room has been described, but the present invention is not limited to this. For example, a plurality of axle counters 10 may be managed at A station, B station, or equipment room, and a plurality of equipment rooms may be provided.

  Further, in the above-described embodiment, the case where the train security device 15 and the ground device are connected one-to-one has been described, but the present invention is not limited to this, and for example, the train security device 15A is connected to the A station and the B station. It may be connected to all ground devices 14 or a plurality of ground devices 14 in between. Further, the train security device 15A may not be directly connected to the ground devices 14E and 14B, but may be connected via the network 30, the interlock control unit 17, and the interlock logic unit 12B.

  Further, in the above-described embodiment, the case where the ground device 14 is a signal device has been described. However, the present invention is not limited to this, and the ground device 14 may be a ballis and / or a switch. And between the B station to acquire information on the train or the running route or control the train or the running route. Note that a plurality of ground devices 14 may be connected to the interlocking logic unit 12 like the signal devices 14B1 and 14B2 are connected to the interlocking logic unit 12B.

  Further, in the above-described embodiment, the case has been described in which the confirmation (SP104) in the train security system 1 is performed after the approval of the station staff at the B station (SP102 in FIG. 2), but the present invention is not limited to this. For example, the order may be reversed.

  Further, in the above-described embodiment, the case where the approval of the station staff at B station (SP102 in FIG. 2) is performed is described, but the present invention is not limited to this, and the approval of the station staff at B station may be omitted.

  Further, in the above-described embodiment, the case of a double track has been described, but the present invention is not limited to this, and a single track or a double track may be used.

  1 ... train security system, 10 ... axle counter, 11, 11A, 11B, 11E ... detection device, 12, 12A, 12B ... interlocking logic unit, 13, 13A, 13B ... man-machine interface unit, 14 ... ... ground equipment, 14A, 14B, 14B1, 14B2, 14E ... signaling equipment, 15, 15A, 15B, 15E ... train security equipment, 16, 16A, 16B, 16E ... evaluator, 17 ... interlocking control unit, 20 … Orbit, 30… network.

Claims (6)

A train security system that operates trains safely,
A plurality of axle counters arranged at least in the vicinity of both ends of the specific section of the traveling path, arranged side by side along the specific section, and detecting the direction and the number of axles of the train passing through the vicinity, and both ends of the specific section A plurality of train security devices arranged at least in the vicinity and arranged side by side along the specific section,
One of the plurality of train security devices acquires the number of the axles entering the specific section based on the axle counter of one of the plurality of axle counters, and the plurality of the train security devices The other train security device of the device acquires the number of the axles that have advanced from the specific section based on the other axle counter of the plurality of axle counters,
One of the plurality of train security devices communicates with the other one of the plurality of train security devices and the number of the axles recognized by both the train security devices. If the numbers match, one of the plurality of train security devices can transmit a reset signal to all the axle counters in the specific section. The train security system according to claim 1, wherein the train security device communicates with a part or all of a ground device for controlling a train. The ground device is a ballis, a switch, and / or a traffic light;
The train security system according to claim 2, wherein the train security system is arranged in the specific section and acquires information on the train or the travel path or controls the train or the travel path. A train security law in a train security system that operates trains safely,
The train security system, a plurality of axle counters arranged at least in the vicinity of both ends of a specific section of the traveling path, arranged side by side along the specific section, and detecting the direction and number of axles of the train passing near the section, In the vicinity of both ends of the specific section has at least a plurality of train security devices arranged and arranged along the specific section,
A first step in which one of the plurality of train security devices acquires the number of the axles that have entered the specific section based on the axle counter of one of the plurality of axle counters;
A second step of acquiring the number of the axles that have advanced from the specific section based on the other axle counter of the plurality of axle counters, the other one of the plurality of train security devices;
One of the plurality of train security devices communicates with the other one of the plurality of train security devices and the number of the axles recognized by both the train security devices. If they match, a third step of allowing one of the train security devices to transmit a reset signal to all the axle counters in the specific section is provided. Train security method. One of the plurality of train security devices receives a reset request via a man-machine interface unit of one of the train security devices, and, via a network, the other one of the plurality of train security devices. Notify the train security device that the reset request has been made,
The other train security device communicates that it is waiting for approval via the man-machine interface unit of the other train security device, and transmits the approval information to the network when the approval operation is accepted by the man-machine interface unit. To one of the train security devices via
One of the train security devices receives the approval information, but if the numbers of the axles recognized by both the train security devices do not match, a reset signal is also sent to any of the axle counters in the specific section. Do not send,
The train security system according to claim 1, wherein: The one train security device transmits the count value of the one axle counter to the other train security device via the network, and acquires the identification value acquired based on the value of the one axle counter. When the number of the axles that have entered the section is greater than 0, the specific section and the one of the axle counters of the one of the tables of the train location information and one of the tables managed by the one train security device. The column corresponding to the approach direction obtained based on the value is changed to the on-rail line, and the on-rail line is the table of the train on-rail information, the other of the other one of the tables managed by the other train security device. Reflect in the column corresponding to the specific section and the approach direction for the specific section,
The other train security device is based on the number and approach direction of the axle obtained based on the count value of the one axle counter from one of the train security devices, and based on the count value of the other axle counter. It is determined whether or not the number of the axles acquired and the approach direction match, and in the case of an affirmative result, a column corresponding to the specific section and the acquired approach direction in the other table is set to non- Change to the existing line, reflect the non-resident line in the column corresponding to the specific section and the obtained approach direction of one of the tables,
In the one train security device, the case where the numbers of the axles recognized by both the train security devices match each other corresponds to the specific section and the acquired approach direction in one of the tables. That is, the information of the non-resident line was obtained from the column
The train security system according to claim 1, wherein:

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