JP4975053B2 - Train presence detection device - Google Patents

Description

  The present invention relates to a train presence detection device in a wireless train control system that does not use a track circuit, and more particularly to performing train presence detection with a simple configuration.

  Conventionally, the presence detection of a train in a railway has been performed using a track circuit, which is an electric circuit using a rail. In-train detection using this track circuit detects a train on the track circuit by short-circuiting the rail with the train axle, and is a train that can short-circuit the rail with the axle. If there is, presence line detection can be performed regardless of the vehicle type. In addition, by selecting a closed circuit type or open circuit type track circuit appropriately, it is possible to control either the train side or non-existing side of the train when the rail breaks. Widely used.

  In addition, for example, as shown in Patent Document 1, for digital train ATC, for train control, mileage is calculated by an on-board device mounted on a train by a signal from a speed generator, and a position correction transponder ground unit is used. The absolute position information of the train is acquired and the position is corrected to detect the start position of the train on the vehicle.

  Moreover, as shown in Patent Document 2, the position of the train is acquired as coordinate information of latitude and longitude by GPS, and the position of the train is set in advance based on the map information including the position information of the trajectory and the acquired coordinate information of the train. In a tunnel where GPS cannot be used, the train position is detected on the vehicle using the distance information from the speed generator, and the detected train position is transmitted to the ground. is doing.

  Moreover, as shown in Patent Document 3, the position of the train is detected based on the radio propagation time between the onboard radio and a ground radio provided at a predetermined position on the ground instead of GPS.

  Conventional train track detection using a track circuit has many ground facilities, requires a lot of maintenance costs, and has a problem that the resolution of the train track detection is limited by the length of the track circuit. This is essentially the same because a digital ATC uses a track circuit.

  In the presence detection of trains using GPS, in a double track section where the tracks are laid in parallel at intervals of 3.5m to 5m, the upper and lower lines can be distinguished from each other due to accuracy issues even if the position of the train is detected by latitude and longitude. There is a problem of not sticking. In order to solve this problem, as shown in Patent Document 4, in addition to the train position detection by GPS capable of observing with an error of about 1 m, line type information such as whether the train is currently traveling is an up line or a down line The trajectory information consisting of line types such as whether the trajectory is a normal trajectory or a branch line is stored on the car, and the nearest trajectory is considered in consideration of the trajectory information that stores the train position detected by GPS. In the tunnel where GPS cannot be used, a speed generator is used in combination, and a device that detects the branching direction separately at the branching section is only on the vehicle or on the ground and the vehicle. It is installed on the top to detect the train position.

  When using the digital ATC on-board position detection method and transmitting it to the ground train detection device, it is necessary to acquire the track circuit ID using the track circuit to determine the position, and to use radio. In systems that do not use track circuits, it is expected that there will be no distinction between the main line and the sub-main line, and there is a need for another means to determine on which line the tail of the train exists at the junction of the branch points. It cannot be simply realized.

  In order to detect the position of the train with the on-board device in the conventional digital ATC, Patent Document 5 stores the track circuit ID in the order of the track circuits in the on-board device and terminates the track circuit from the beginning to the end. The system which memorize | stores the distance to a kilometer, and collates the train traveling position detected with the signal from a speed generator with the memorize | stored information, and detects which track circuit the train is located in is disclosed.

  When changing the system that uses train track detection using this track circuit ID to a system that does not use a track circuit in the fixed block system, it is conceivable to use the kilometer as the block boundary position as it is. Multiple lines of the same value come out due to parallel routes in the upper and lower lines and linked stations, overlapping kilometers, secondary main lines with different route lengths, branch lines, etc. There is a problem that the standing line position cannot be detected.

  An object of the present invention is to solve such a problem and to provide a train on-line detection device capable of accurately detecting the position of a train on the train with a simple configuration in a system that does not use a fixed block system track circuit. To do.

In the train track detection device of the present invention, the train track detection device detects the track position of the train with the on-board device mounted on the train, and transmits the track detection information indicating the detected track position to the train management device of the ground device . The on-board device includes a train position detection device, an on-board control device, and an on-vehicle transmission device, the train position detection device includes a storage device and a standing line position detection unit, and the train travels on the storage device. The block boundary position / block permutation data of each route to be stored is stored, and the on-line position detection unit calculates the travel position of the train in kilometers, and the block boundary position stored in the storage device is calculated in kilometers. Check the block permutation data and determine whether the train is in a double track section area or a sub-line or branch line area from the block boundary position / block permutation data stored in the storage device. , Column Is in the area of the double-track section, the information on the calculated kilometer, train cab direction and train ID is used as on-line position information, and when the train is in an area having a secondary line or a branch line, it is transmitted from the ground The travel route of the train is determined by referring to the determined driving route and the block boundary position / block permutation data stored in the storage device, and the calculated route, the train cab direction, and the train ID are determined. outputs information to rail position information to the onboard control device, the vehicle on the controller, the on-rail position information input through the onboard transmission device transmits to the train management device of the ground device, the train management device ground device, and performs distinction of lines parallel based on the received the-rail position information.

  In addition, the section position detection unit, when the section that travels twice the same kilometer on the travel route of the determined train is stored in the block boundary position / block permutation data stored in the storage device, When the end position of the first section is stored in the storage device and the end position of the first section is detected by the existing line position detection unit, the existing line position detection unit detects the second section from the storage device. And the calculated kilometer is rewritten to the kilometer of the second section obtained, and the overlapped kilo flag is added to the information of the kilometer of the existing position information until the second section is completed. The train management device determines that the vehicle is traveling ahead of the end position of the first section when an overlapped kilo flag is attached to the received track position information.

  In this invention, the travel position of the train is calculated in kilometers, and the calculated distance, the direction of the driver's cab and the train ID are transmitted to the ground device as on-line position information. When traveling, it can be reliably detected that the vehicle is traveling on any of the upper and lower lines of the double-track section and the closed section where the line is present.

  Also, when the train is traveling in an area having a secondary line and a branch line, etc., the travel route of the train is determined from the block boundary position / block permutation data based on the driving route transmitted from the ground and calculated. Since the information on the travel route determined as kilometer, train direction and train ID is sent to the ground device as on-line position information, the ground device accurately detects in which closed section of the operation route the train is located. can do.

  Furthermore, if it is stored in the block boundary position / block permutation data that the same kilometer is traveled twice on the travel route of the confirmed train, the position of the on-board device There is a path difference by rewriting the recognized kilometer to the kilometer of the point where the second run is started, and adding the duplicate kilo flag to the information of the kilometer calculated in the existing position information until the second run is completed. Even after the train passes through the areas such as the sub-main line and the branch line, it is possible to reliably detect the closed section where the train is located on the ground device.

It is a block diagram of the information transmission system which transmits information using a radio | wireless between a train and the ground. It is a block diagram which shows the structure of a vehicle-mounted apparatus. It is a schematic diagram which shows the block boundary position and block permutation data memorize | stored in the memory | storage device of the train line detection apparatus of an onboard apparatus. It is a flowchart which shows a process when a train standing line position is detected and transmitted to a ground apparatus by an onboard apparatus.

  FIG. 1 shows an on-board device 2 mounted on a train 1 to detect the position of the train 1 and transmits on-line detection information indicating the detected position of the train 1 to the ground device 3 using radio without using a track circuit. It is a block diagram of an information transmission system.

  As shown in the block diagram of FIG. 2, the on-board device 2 includes a train position detection device 4, an on-board control device 5, and an on-board wireless device 6. The train position detection device 4 includes a storage device 7 and a standing line position detection unit 8. The storage device 7 stores the closing boundary position and closing permutation data of each route on which the train 1 travels. When the travel route of the train 1 is, for example, as shown in FIG. 1, the train 9 is an interlocking station premises 10 having an upper and lower line of a double-track section and a secondary main line, a branch line, etc. As shown in the schematic diagram of FIG. 3, each block boundary position, block permutation data 11 indicating each block boundary position expressed in kilometres, each block 0 to path 2 block permutation, and each route 0 to path 2 train traveling direction 11. Is remembered. The standing line position detection unit 8 calculates the travel distance of the train 1 by the distance from the signal from the speed generator 12, and calculates the travel position of the train 1 in kilometres. The on-line position of the train 1 is detected by collating with the permutation data 11 and the on-line position information is output to the on-board controller 5. The on-board controller 5 outputs the on-line position information input from the on-line position detector 8 to the on-board wireless device 6 and also detects the speed of the train 1 detected by a signal from the speed generator 12. It is controlled by the control information from the ground input from. The on-board wireless device 6 transmits the standing line position information to the ground via the antenna 13, receives control information to be transmitted from the ground, and outputs it to the on-board control device 5.

  The ground device 3 includes a train management device 14, a plurality of ground base stations 15 a to 15 c provided along the travel route of the train 1, an interlock device 16, and an ATC device 17. The ground base stations 15 a to 15 c communicate wirelessly with the on-board wireless device 6 via the antenna 18. The train management device 14 exchanges information with the on-board wireless device 6 via the ground base stations 15a to 15c, and determines the presence / absence of each closed section from the received position of each train.

  The processing when the on-board device 2 of the information transmission system configured as described above detects the current position of the train 1 and transmits it to the train management device 14 of the ground device 3 will be described with reference to the flowchart of FIG. .

  For example, the on-line position detection unit 8 of the on-board device 2 of the train 1 traveling in the R direction in FIG. 1 calculates the travel distance of the train 1 based on the signal from the speed generator 12 based on the travel position of the train 1. Is calculated in kilometers (step S1). The calculated kilometer distance is compared with the block boundary position / block permutation data 11 stored in the storage device 7 to determine whether the train 1 is in the double track section 9 or the interlocking station premises 10 (step S2). ). As a result of this determination, if the train 1 is in the double track section 9, no travel route information is registered (step S3). For example, when the position A is reached, the block boundary position / block permutation data 11 is confirmed and It is confirmed whether the route (in this case, no route) is within a section in which the same kilometer is traveled twice (step S4). As a result of this confirmation, since the position A is not in the section in which the same kilometer is traveled twice, the on-line position detection unit 8 determines the train ID, the kilometer of the position A, the R direction that is the cab of the train 1 and the travel route. Is output to the on-board controller 5 as on-line position information. The on-board controller 5 sends the input track position information to the on-board wireless device 6 and transmits it to the ground device 3 via the antenna 13 (step S5).

  Thus, when the train 1 is traveling in the double track section, the train management device of the ground device 3 transmits the distance that the train 1 has reached, the direction of the cab of the train 1 and the train ID information as on-line position information. 14, it is possible to reliably detect whether the train 1 is traveling in either the R direction or the L direction of the double track section and the closed section where the train is present, and transmit the track detection information to the interlock device 16 and the ATC device 17. it can.

  For example, the ground base station 15 a of the ground device 3 receives the on-line position information transmitted from the on-board wireless device 6 and outputs it to the train management device 14. The train management device 14 outputs to the interlocking device 16 and the ATC device 17 the on-line detection information that is the result of determining whether or not the train is on each closed section from the input on-line position information. When the interlocking device 16 inputs the presence line detection information, the interlocking device 16 outputs the route information based on the input presence line detection information to the ATC device 17. When the presence detection information and the route information are input to the ATC device 17, the route information created from the route information input for each block section and the opening section information corresponding to the route information and the position of the preceding train are provided to the train management device 14. Output. The train management device 14 extracts only the route information and opening section information for the train 1 from the input route information and opening section information, and outputs them to the ground base station 15 for transmission to the train 1.

  The on-board radio device 6 of the on-board device 2 receives the route information and opening section information of the train 1 transmitted from the ground and outputs them to the on-board control device 5. The on-board controller 5 controls the speed of the train 1 based on the input route information and opening section information.

  In addition, as a result of determining whether the train 1 travels (step S6) and the calculated kilometer distance is in the double-track section 9 or in the interlocking station premises 10 (steps S1 and S2), the travel position of the train 1 is the interlocking station. In the case of the premises 10, the on-line position detection unit 8 of the on-board device 2 collates the previous driving route transmitted from the ground with the block boundary position / block permutation data 11 stored in the storage device 7, and the train 1 travels. The route is discriminated (step S7), and the block boundary position / block permutation data 11 is checked to determine whether it is within the section of traveling the same kilometer twice on the route (step S4). As a result of the confirmation, if the travel route of the train 1 is not in the section in which the same kilometer travels twice, the existing line position detection unit 8 determines the train ID and the calculated kilometer and the R direction that is toward the cab of the train 1. Information on the travel route is output to the on-board controller 5 as on-line position information. The on-board controller 5 sends the input track position information to the on-board wireless device 6 and transmits it to the ground device 3 via the antenna 13 (step S5). The train management device 14 of the ground device can detect which of the tracks on which the train 1 is parallel, based on the location information of the location transmitted from the train 1.

  In addition, the travel position of the train 1 is in the interlocking station premises 10, and the on-line position detection unit 8 determines the travel route of the train 1 and confirms the block boundary position / block permutation data 11, and the same kilometer along the route. As a result of confirming whether the travel route of the train 1 is within the section in which the travel route of the train 1 travels twice the same kilometer (step S4), the travel position of the train 1 is the first in the same kilometer It is confirmed whether or not the end position of the section has been reached (step S8). For example, when the train 1 travels on the route 1, in the block boundary position / block permutation data 11, traveling twice the same kilometer from the route difference between the route 0 and the route 1 is the position where the first section ends. There is a section that is linked to and stored in the closed boundary C, and travels the same kilometer twice in front of the closed boundary C. Therefore, as a result of confirming whether or not the end position of the first section of the same kilometer has been reached, if the end position of the first section of the same kilometer has not been reached, for example, the train 1 is in the R direction of the interlocking station premises 10 Until the road reaches the closing boundary C of the double track section 9 after traveling on the route 1 and reaching the closing boundary C, the on-line position detection unit 8 travels in the R direction that is the train ID and about the kilometer and the train 1 direction. The route information is output to the on-board controller 5 as on-line position information. The on-board controller 5 sends the input track position information to the on-board wireless device 6 and transmits it to the ground device 3 via the antenna 13 (step S5).

  Further, the travel route of the train 1 is in a section in which the same kilometer travels twice, and the existing line position detection unit 8 reaches the kilometer in which the section in which the travel position of the train 1 travels the same kilometer twice ends. (Step S8), and if the result of this confirmation is that the distance to the end of the section that travels the same kilometer twice has been reached, the travel position of the train 1 is the first Whether it is a section or a second section is confirmed by the overlap kilometer flag (step S9). As a result of this confirmation, when the travel position of the train 1 reaches the first kilometer about the end of the section in which the same kilometer travels twice, for example, the train 1 travels on the route 1 in the R direction of the interlocking station premises 10. When reaching the block boundary C of the double track section 9 after reaching the block boundary B, the information of the section traveling twice the same kilometer linked to the block boundary C and stored in the storage device 7 is acquired, The overlap kilometer flag is turned on and rewritten to the kilometer starting the section that travels the same kilometer twice (step S10), and the kilometer and the train 1 with the duplicate kilometer flag indicating the train ID and the duplicate kilometer are added. Information on the R direction, which is the direction of the driver's cab, and the travel route are output to the on-board controller 5 as on-line position information. The on-board controller 5 sends the input track position information to the on-board wireless device 6 and transmits it to the ground device 3 via the antenna 13 (step S5). Then, when the train 1 reaches the end of the second traveling section of the same kilometer and is confirmed as the second section by the overlapping kilo flag (steps S6, S1 to S9), the overlapping kilo section flag is turned off. In step S11, the train ID, the kilometer distance, the presence / absence of the overlapping kilometer flag, the information on the R direction and the travel route that are suitable for the cab of the train 1 are output to the on-board controller 5 as on-line position information. The on-board controller 5 sends the input track position information to the on-board wireless device 6 and transmits it to the ground device 3 via the antenna 13 (step S5).

  In this way, in the section that travels the same kilometer twice, since the kilometer with the overlap kilometer flag is transmitted to the ground device 3 in the second section, the route in the interlocking station premises 10 having the secondary main line etc. Even after merging, the train management device 14 can reliably detect the closed section where the train 1 is present. Moreover, it can respond to the double meter provided when a kilometer length is extended by the replacement of a track | line in the double track section by the same method.

1; train, 2; on-board device, 3; ground device, 4; train position detection device,
5: On-vehicle control device. 6; On-vehicle wireless device, 7; Storage device, 8;
9: Area having upper and lower lines of a double-track section, 10;
11: Block boundary position / block permutation data, 12: Speed generator, 13: Antenna,
14; Train management device, 15; Ground base station, 16; Interlocking device, 17; ATC device.

Japanese Patent No. 3443792 Japanese Patent No. 3884052 JP 2007-331629 A JP 2008-137652 A Japanese Patent No. 3973392

Claims (2)

In the train on-line detection device that detects the on-line position of the train with the on-board device mounted on the train and transmits the on-line detection information indicating the detected on-line position to the train management device of the ground device ,
The on-board device has a train position detecting device, an on-vehicle control device, and an on-vehicle transmission device,
The train position detection device includes a storage device and a standing line position detection unit, and the storage device stores closing boundary positions and closing permutation data of each route on which the train travels. The travel position is calculated in kilometres, and the calculated kilometre is compared with the block boundary position / close permutation data stored in the storage device, and the block boundary position / close permutation data stored in the storage device is checked. It is determined whether the train is in the area of the double track section or the area having the secondary main line or the branch line, etc., and when the train is in the area of the double track section, the calculated kilometer, the train cab direction and the train When the ID information is used as location information and the train is in an area having a secondary line, a branch line, etc., refer to the previous driving route transmitted from the ground and the block boundary position / block permutation data stored in the storage device. To determine the train travel route, the information of the calculated kilometrage and train cab facing the train ID and determine the travel route as a rail position information outputs on the control unit the car, on the car control device Transmits the input on-line position information to the train management device of the ground device via the on-vehicle transmission device,
The train management device ground equipment, the train-rail detection device and performs distinction of lines parallel based on the received the-rail position information. In the train on-line detection device according to claim 1 ,
In the case where the section for traveling the same kilometer twice in the travel route of the determined train is stored in the block boundary position / block permutation data stored in the storage device, the track position detection unit stores the storage device The end position of the first section is stored together, and when the position detection unit detects the end position of the first section, the position detection unit detects the second section of the second section from the storage device. And the calculated kilometer is rewritten to the kilometer of the second section obtained, and the overlapped kilo flag is attached to the information of the kilometer of the existing line position information until the second section is completed,
The train management apparatus detects that the train management apparatus is traveling ahead of the end position of the first section when the overlapped kilo flag is attached to the received track position information. .

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