JP4915864B2 - Closing device - Google Patents

Description

  The present invention relates to a closing device for safe operation of a train in a single track section.

  In single-track operation sections where the number of operating trains is relatively small, a non-automatic blocking method using a tablet or stuff may be employed to prevent collision of the following train and collision with the oncoming train. In order to improve the transportation efficiency and security of this non-automatic block section, as shown in Patent Document 1, a block device using a train detection device using a transponder is disclosed.

  As shown in FIG. 7, the blocking device disclosed in Patent Document 1 is a transponder having an interrogator 101 and a ground responder 102 in the vicinity of an in-line signal S1 for an up line and an in-field signal S3 for a down line. 10a and 10d are provided, and in order to detect the presence of the upstream train 3 at the station, transponders 10b and 10c are provided between the in-line traffic signal S1 for the upstream line and the departure traffic signal S2 and near the departure traffic signal S2 for the upstream line. In order to detect the presence of the down train at the station, transponders 10e and 10f are provided between the down line traffic signal S3 and the departure signal S4 and in the vicinity of the down line departure signal S4. On-tail responders 20a and 20b are provided at the tail. These on-board responders 20a and 20b have different frequencies and transmit information identifying the train.

  Then, when the up train enters the station, the onboard responders 20a and 20b end the communication with the transponder 10b, and when the communication with the transponder 10c does not start, it is detected that the train is on the station and the transponder 10a and the transponder It is assumed that no train is present during 10b. In order to make this train advance from the station, the departure signal S2 for the up line becomes G indication, the turning machine (not shown) performs a predetermined course forming operation, and the onboard responder 20a communicates with the transponder 10c. When it is detected that the train has departed from the station, the departure signal S2 for the up line is set to R display.

In this way, the trains entering and entering each station are detected to form a block, the formed block is released, and the train is identified and tracked.
JP 2001-63578 A

  As described above, the closing device using the transponder 10 has a medium such as a power supply device and a communication cable, and has to be wired across the line, and the wiring is not easy.

  Further, when the up train enters the station, the on-board responders 20a and 20b end the communication with the transponder 10b, and when the communication with the transponder 10c does not start, it is detected that the train is on the station and the transponder 10a Assuming that no train is present between the transponders 10b, when the train retreats and the tail of the train returns between the transponders 10a and 10b again, the blockage is not maintained and the safety is impaired. .

  Further, when the onboard responder 20a communicates with the transponder 10c to detect that the train has departed from the station and releases the blocking of the transponder 10b and the transponder 10c, for example, after the train overruns a predetermined stop position, However, when the vehicle retreats to a predetermined stop position and the rear end of the train returns between the transponder 10c and the transponder 10b, the blockage is not maintained and the safety is impaired.

  An object of the present invention is to provide a closing device that improves such disadvantages and ensures the safety of train operation by ensuring the closing in any case.

The blocking device of the present invention includes a set of on- board communication terminals having different identifiers mounted on the head and tail of a train and a ground device, and the ground device is in advance along a track on which the train travels. A plurality of ground communication terminals that perform two-way communication with the one set of on- board communication terminals, an electronic terminal device connected to the ground communication terminal, and a transmission path, and a train detection logic function; An electronic interlocking logic unit having an interlocking logic function, wherein the electronic interlocking logic unit is configured as one block section between the ground communication terminals, and the on-board communication terminal provided behind the train traveling direction communicates with the ground communication terminal. When entering the area, it is determined from the ground communication terminal that the train has advanced from the closed section behind the direction of travel of the train, the closed section determined that the train has advanced has been reserved for advancement, and the train has entered. Closed When the on-board communication terminal provided ahead in the traveling direction of the train enters the communication area of the ground communication terminal at the front boundary in the train traveling direction of the section, the block of the closed section in the advance reservation state is released. To do.

  In addition, the train in the closed section that detects the train station line between the ground communication terminal provided between the on-site signal and the departure signal for the up and down lines in the station premises and the ground communication terminal provided near the departure signal A ground communication terminal is provided at the stop position.

The present invention is equipped with a set of on- board communication terminals having different identifiers at the beginning and the end of a train, and a plurality of two-way communication with a set of on- board communication terminals along a track along which the train travels When the ground communication terminal is placed and the on-board communication terminal provided behind the train in the traveling direction enters the communication area of the ground communication terminal, it is determined that the train has advanced from the closed section behind the train traveling direction from the ground communication terminal. The closed section determined that the train has advanced is placed in the advance reservation state and the block is held, and is provided in the communication area of the ground communication terminal at the front boundary of the train traveling direction of the closed section where the train has entered, in front of the traveling direction of the train When the on-board communication terminal enters, the closing of the closed section in the advance reservation state is canceled, so the train retreats after the train has advanced from the closed section behind the train traveling direction, and the tail of the train advances. Even back in the direction behind the block section can ensure safety.

  In addition, the train in the closed section that detects the train station line between the ground communication terminal provided between the on-site signal and the departure signal for the up and down lines in the station premises and the ground communication terminal provided near the departure signal A ground communication terminal is provided at the stop position, and when the on-board communication terminal provided in the communication area in front of the traveling direction of the train enters the ground communication terminal, the branching device is released by releasing the blockage of the section having the branching device. It is possible to back up the section advance detection, and to improve safety.

  FIG. 1 is a layout view showing the structure of a station premises in the closing apparatus of the present invention. As shown in the figure, in the station premises 1, roadside devices 2 a and 2 f which are communication terminals provided in the vicinity of the in-line signal S 1 for the up line and the in-field signal S 3 for the down line, and the station line of the up train 3 are provided. In order to detect, the roadside devices 2b and 2c provided between the in-field signal S1 and the departure signal S2 for the up line and in the vicinity of the departure signal S2 for the up line, and the station line of the down train 3 to detect the down line Roadside devices 2e and 2d provided between the on-site traffic signal S3 and the departure signal S4 and in the vicinity of the down line departure signal S4. Roadside devices 4a and 4b for information transmission are provided at the train stop positions on the up and down lines. In addition, a roadside device 2g, a roadside device 2n, and the like are provided at a predetermined distance between the stations. This roadside unit is defined as one closed section.

  The roadside devices 2a to 2f and the roadside devices 4a and 4b are connected to an electronic interlocking logic unit 5 having a train detection logic function and an interlocking logic function via an optical transmission line 6 as shown in the block diagram of FIG. It is connected to the electronic terminal devices 7a, 7b, 7c.

  As shown in FIG. 3, the train 3 has vehicle-mounted devices 8a and 8b which are communication terminals having different identifiers ID1 and ID2 at the head and tail, and the vehicle-mounted devices 8a and 8b are roadside devices 2a to 2g. , 2n and the roadside devices 4a and 4b, for example, are communicated by a dedicated short range communication method using microwaves. The transmission distances of the roadside devices 2a to 2f, 2g, 2n and the roadside devices 4a, 4b with respect to the vehicle-mounted devices 8a, 8b are set to be narrow, for example, about 3 m so as not to affect other roadside devices. This communication method may be narrow directivity wireless communication, optical communication, or infrared communication.

  With reference to the schematic diagram of FIG. 4, the processing when the ascending train 3a enters the station premises 1 from the single-line block section 101T between the stations and arrives at the block section 103T, which is a station stop section, will be described. .

  As shown in FIG. 4 (a), the ascending train 3a traveling in a single-line block section 101T between stations reaches the vicinity of the roadside device 2a, and as shown in FIG. When 8a enters the communication area of the roadside device 2a and communicates between the roadside device 2a and the vehicle-mounted device 8a, and the identifier ID1 or the like of the vehicle-mounted device 8a is sent to the electronic terminal device 7a, the electronic terminal device 7a It is detected that 3a has reached the position of the roadside device 2a. When the vehicle-mounted device 8a advances from the communication area of the roadside device 2a in this state, the electronic terminal device 7a detects that the train 3a has entered the block section 102T defined by the roadside device 2a and the roadside device 2b.

  When the train 3a travels and the vehicle-mounted device 8b enters the communication area of the roadside device 2a as shown in FIG. 4 (c), the electronic terminal device 7a has advanced from the section 101T where the train 3a is between the stations. Is detected. As described above, even if it is detected that the train 3a has advanced from the single-line block section 101T, the electronic interlocking logic unit 5 maintains the block by setting the single-line block section 101T to the advance reservation state on the assumption that the train 3a retreats. . Thereafter, as shown in FIG. 4D, when the vehicle-mounted device 8a enters the communication area of the roadside device 2b, the electronic terminal device 7b detects that the train 3a has entered the block section 103T, which is a station stop section, The electronic interlocking logic unit 5 closes the roadside unit 4a in the block section 103T, and releases the block in the single line block section 101T. When the train 3a travels and the vehicle-mounted device 8b enters the communication area of the roadside device 2b as shown in FIG. 4 (e), the electronic terminal device 7b detects that the train 3a has advanced from the closed section 102T. Also in this case, the electronic interlocking logic unit 5 maintains the blockage by setting the block segment 102T to the advance reservation state. When the train 3a travels and the electronic terminal device 7b detects that the vehicle-mounted device 8a has entered the communication area of the roadside device 4a provided at the train stop position as shown in FIG. Closes the roadside device 2c in the block section 103T and releases the block in the block section 102T having a branching unit. When the vehicle-mounted device 8b enters the communication area of the roadside device 4a, the train 3a is stopped.

  Thus, even if the train 3a enters the closed section 103T, for example, the train 3a advances until the vehicle-mounted device 8a provided at the front in the traveling direction of the train 3a enters the communication area of the roadside device 4a ahead in the traveling direction. Since the closed section 102T at the rear in the traveling direction is set in the advance reservation state and the closing is maintained, safety can be improved. In addition, since it detects that the vehicle-mounted device 8a has entered the communication area of the roadside device 4a provided at the train stop position and releases the blockage of the block section 102T having the branching device, the backup of the section advance detection having the branching device is released. Can improve safety. Furthermore, when an abnormality occurs in the roadside device 4a, the blockage of the closed section 102T is not released, so that safety can be improved and an abnormality can be detected in the roadside device 4a.

  Next, as shown in FIG. 5, a process when the down train 3b stopped at the station stop position on the down line advances will be described with reference to the schematic diagram of FIG.

  As shown in FIG. 6 (a), when the down train 3b stopped in the block section 104T defined by the roadside device 2e and the roadside device 2d advances from the station, the departure signal S4 for the downline becomes G indication, When the turning machine (not shown) performs a predetermined course forming operation and the information is transmitted from the roadside device 4b to the vehicle-mounted device 8a provided behind the traveling direction of the train 3b, the train 3b starts running. To do. In this case, when an abnormality has occurred in the roadside device 4b, the information indicating the formation of the route is not transmitted to the vehicle-mounted device 8a, so that the train 3b need not be run, and safety can be improved. In addition, entanglement of information with the roadside device 4b in the course formation can also be entangled in the path unlocking condition. After the route is formed, the train 3b travels, and after the communication between the train 3b and the roadside device 4b is interrupted, the route is locked until the state up to FIG. 6 (g) is changed even if the route lever is restored. If it is not unlocked, the train 3 can be safely advanced without being unlocked.

  When the train 3b reaches the vicinity of the roadside device 2d as shown in FIG. 6B and the vehicle-mounted device 8b provided in front of the train traveling direction enters the communication area of the roadside device 2d and advances, the electronic terminal device 7b detects that the train 3b has entered the block section 102T, and the electronic interlocking logic unit 5 releases the block between the roadside device 2e and the roadside device 4b in the block section 104T. Next, when the vehicle-mounted device 8a enters the communication area of the roadside device 2d as shown in FIG. 6C, the electronic terminal device 7a detects that the train 3a has advanced from the block section 104T. As described above, even if it is detected that the train 3b has advanced from the closed section 104T, the electronic interlocking logic unit 5 advances between the roadside device 4b and the roadside device 2d in the closed section 104T on the assumption that the train 3b retreats. Maintain reservations in the reserved state. Thereafter, as shown in FIG. 6 (d), when the vehicle-mounted device 8b enters the communication area of the roadside device 2a, the electronic terminal device 7a detects that the train 3b has entered the section 101T between the stations, and the electronic The interlocking logic unit 5 releases the closing of the closing section 104T. When the train 3b travels and the vehicle-mounted device 8a enters the communication area of the roadside device 2a as shown in FIG. 6 (e), the electronic terminal device 7a advances from the section 102T where the train 3b is closed, and the single line between the stations. It is detected that the vehicle has entered the block section 101T. Also in this case, the electronic interlocking logic unit 5 maintains the blockage by setting the block segment 102T to the advance reservation state. The train 3a travels, and as shown in FIG. 6 (f), the vehicle-mounted device 8b enters the communication area of the roadside device 2n provided between the stations, and advances as shown in FIG. 6 (g). When the electronic terminal device 7a detects that the device 8a has entered the communication area of the roadside device 2n, the electronic interlocking logic unit 5 releases the block in the block section 102T.

  Thus, even if it detects that the vehicle-mounted device 8a entered the communication area of the roadside device 2n and releases the blockage of the block section 102T, the station-to-station is blocked while the train 3b exists between the stations. Therefore, the course of the station premises 1 cannot be set and safety can be ensured.

FIG. 3 is a layout diagram showing a configuration of a station premises in the closing apparatus of the present invention. It is a block diagram which shows the whole structure of a blocking apparatus. It is an arrangement plan of onboard equipment carried in a train. It is a schematic diagram which shows the state which a train approachs into a station premises from between stations. It is a layout diagram showing the configuration of the station premises where the down train is located. It is a mimetic diagram showing the state where a train advances from a station premises to between stations. It is a layout view showing a configuration of a station in a station according to a conventional example.

Explanation of symbols

1; station yard, 2; roadside unit, 3; train, 4; roadside unit, 5; electronic interlocking logic unit,
6; optical transmission line, 7; electronic terminal device, 8;

Claims (2)

A set of on- board communication terminals mounted on the top and tail of the train and having different identifiers, and a ground device;
The ground device is arranged in advance along a track on which a train travels, and a plurality of ground communication terminals that perform bidirectional communication with the set of on-vehicle communication terminals, and an electronic terminal device connected to the ground communication terminal; An electronic interlocking logic unit connected via a transmission line and having a train detection logic function and an interlocking logic function;
The electronic interlocking logic unit is configured as one closed section between the ground communication terminals, and when an on-board communication terminal provided behind the train traveling direction enters the communication area of the ground communication terminal, the train communication direction rearward from the ground communication terminal It is determined that the train has advanced from the closed section, and the closed section determined that the train has advanced is set in the advance reservation state and the block is held.
When the on-board communication terminal provided in the forward direction of the train enters the communication area of the ground communication terminal at the front boundary of the train traveling direction of the closed section where the train has entered, the block of the closed section in the advance reservation state is released. A closing device characterized by: The closure device according to claim 1,
Train stop position in the closed section for detecting the train station line between the ground communication terminal provided between the on-site signal and the departure signal for the up and down lines in the station premises and the ground communication terminal provided near the departure signal A closing device characterized in that a ground communication terminal is provided.

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