JP2938409B2 - Railroad crossing control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a section comprising a plurality of track circuits existing between a railroad crossing and a predetermined distance before the railroad crossing, wherein the railroad crossing is set to sound when a train is present in the section. The present invention relates to a railroad crossing control device that stops sounding of a railroad crossing when a failed train stops at a station in a railroad crossing control section.

[0002]

2. Description of the Related Art A railroad crossing control section from a railroad crossing to a predetermined distance before is usually composed of a plurality of track circuits, and when a train exists in any of the track circuits, the railroad crossing sounds. Each track circuit is provided with a train detector for detecting whether or not the train is on track. The train detector uses an operating contact type relay that recovers when the left and right rails are short-circuited by the train wheel and axle, and operates when the short-circuit is not short-circuited. It is determined that there is a train inside.

[0003] The operation control of the crossing barrier and the warning light at the level crossing is performed by a level crossing control device based on a signal from a train detector provided in the level crossing control section. If there is a station in the railroad crossing control section and the train is stopped at that station, the train detector on the home track detects the train's presence, so the train at the railroad crossing ahead is stopped at the station During that time, it always keeps ringing.

[0004] Conventionally, automatic train control devices (ATC) have been introduced to ensure the safety of train operation. The automatic train control device instructs the succeeding train at the maximum speed limit in accordance with the occupied position of the preceding train recognized based on the signal from each train detector. Such instructions are usually
By transmitting a specific signal current (AC) to the track circuit and inducing an electric current in a power receiver attached to the lower part of the train by electromagnetic induction, the signal is transmitted from the ground to the train.

The operation management of the train is performed by an operation management device 101 installed in an operation management room as shown in FIG. 3, and between the operation management device 101 and the railroad crossing control device 102, Non-fail communication is being performed. Normally, signal transmission between the railroad crossing control device 102 and the automatic train control device 103 is performed by fail-safe communication.

[0006]

In such a conventional technique, when a train stops at a station in a railroad crossing control section due to a failure or the like, the railroad crossing remains ringing. Since the communication between the device and the railroad crossing control device is non-failure, it was not possible to directly issue an instruction to stop the noise of the railroad crossing from the operation management device for safety. For this reason, the staff must go to the railroad crossing control instrument box near the railroad crossing and perform the noise stop work, and the railroad crossing will continue to ring for a long time until the work is completed, causing a problem such as congestion. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. When a train breaks down at a station in a railroad crossing control section, the sound of the railroad crossing is ensured while ensuring safety. It is an object of the present invention to provide a railroad crossing control device capable of remotely stopping a train.

[0008]

The gist of the present invention for achieving the above object lies in the following inventions. [1] A section composed of a plurality of track circuits (21 to 25) existing between a railroad crossing (10) and a predetermined distance before the railroad crossing (10) so that the railroad crossing (10) sounds when a train is present in the section. When a failed train stops at a station (28) in a set railroad crossing control section (26), a railroad crossing control device (60) that stops ringing of the railroad crossing (10) sounds the railroad crossing (10). Train stop instructing means (71a, 72, 7)
3, 62) and a railroad crossing sound stopping means (71b, 81), and a predetermined signal is transmitted from the ground to each train on the track to instruct the maximum speed limit. , A response sending means (33, 34) is provided, and the train stop instruction means (71a, 72, 73, 62) stops the sound of the railroad crossing (10) from the operation management device (50) for managing the operation of the train. When an instruction to stop the operation is received and a train is on the track in the station (28) premises, the automatic train control device (30) has at least the track circuit (22) having the station and the track circuit (22). The automatic train control device (30) is instructed to transmit a stop instruction to a train in the track circuit (23) adjacent to the railroad crossing side, and the response means (33, 34) provided on the automatic train control device (30) side includes the automatic train The control device (30) is connected to the train stop. Instruction means (71a, 72,7
Orbital circuit (2) designated according to the instruction from (3, 62)
When the transmission of the stop instruction is completed for the train in (2, 23), a response signal indicating the completion is transmitted to the railroad crossing control device main body (60), and the railroad crossing sound stopping means (71b,
81) A railroad crossing control device (60) characterized by stopping the sound of the railroad crossing (10) when receiving the response signal from the response means (33, 34).

The present invention operates as follows. The train stop instructing means (71a, 72, 73, 62) receives a stop sound instruction to stop the sound of the railroad crossing (10) from the operation management device (50) for managing the operation of the train. After confirming that the train is on the track within the yard, the automatic train control device (30) sends at least the track circuit (22) having the station and the track circuit (23) adjacent to the railroad crossing side to this. Instruct the train to send a stop instruction.

In response to the instruction, the automatic train control device (30) transmits a stop instruction to the trains in the track circuit (22) having the station and the track circuit (23) adjacent to the railroad crossing side thereof. The response means (33, 34) includes a train stop instruction means (71a, 72, 73, 6).
Track circuits (22, 2) specified according to the request from (2)
3) When the transmission of the stop instruction to the trains in is completed,
A response signal indicating this is sent to the railroad crossing control device main body (60). The level crossing sound stopping means (71b, 81) stops the sound of the level crossing (10) when receiving the response signal from the response means (33, 34).

After reconfirming that the train is stopped at the station (28), a stop request is sent to the automatic train control device (30), and the automatic train control device (30) sends the stop request to the station (28). ) After receiving a response to the effect that the train on the premises has been set to be immobile, stop the sound of the railroad crossing (10).
The sound of the railroad crossing (10) can be stopped remotely while ensuring safety.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show one embodiment of the present invention. As shown in FIG.
A railroad crossing control section 26 including the first to fifth track circuits 21 to 25 is provided between and a predetermined distance before the railroad track. In addition, a station 28 exists at the location of the second track circuit 22.

Each of the track circuits 21 to 25 is provided with a train detector (not shown). As described above, the train detector uses an operating contact type relay that recovers when the left and right rails are short-circuited by the train wheel and axle, and operates when there is no short-circuit. When the operation contact is opened, it is recognized that the train is on the train.

In a normal state, when a train is on any of the first to fifth track circuits 21 to 25, the circuit breaker gets off and the warning light sounds. In addition, an automatic train control device (ATC) 30 (FIG. 1) has been introduced, and a maximum speed limit for a succeeding train is set according to the occupied position of the preceding train recognized based on a signal from each train detector. It is designed to be instructed.

The automatic train controller 30 applies various signal currents (alternating currents) to the track circuit to induce current in a power receiver attached to the lower part of the train by electromagnetic induction, so that various types of signals are transmitted from the ground to the train. Is transmitting the instructions. The automatic train control device 30 can transmit an instruction having different contents for each track circuit.

The ATC signal transmitted from the automatic train control device 30 is assigned a name corresponding to the maximum speed limit. For example, 15 signals indicate that the maximum speed limit is 15 km / h, and 01 signal indicates that the train stops. And the 02 signal indicates an emergency stop. Code up (UP) to increase the code in the direction to ease the restriction of the maximum speed limit, such as changing from 01 signal to 15 signal
I'm calling

The operation management of trains on the entire route is shown in FIG.
The operation is performed from the operation management device 50 (FIG. 1) installed in the operation management room in the same manner as shown in FIG. Fail-safe communication is secured between the railroad crossing control device 60 and the automatic train control device 30, but signal transmission between the operation management device 50 and the railroad crossing control device 60 is non-fail.

FIG. 1 is a circuit diagram of a part related to the noise stop control of the railroad crossing control device 60, the operation management device 50, and the automatic train control device 30 that stop the sound of the railroad crossing 10 when a train breaks down in the station premises. 2 shows a configuration. The railroad crossing control device 60 includes a silencing relay 61 that operates by receiving a silencing instruction from the operation management device 50, and a second track circuit 2 having the station 28 with respect to the automatic train control device 30.
And an A relay 62 for issuing a stop request signal for requesting transmission of a stop instruction to the second or the like.

The railroad crossing control device 60 is provided with a silencing P relay 6 that operates in response to a response from the automatic train control device 30.
3 and a level crossing control relay 64 for controlling the level crossing 10
And a present-time prime code-up relay 65. The automatic train control device 30 includes a C-noise relay 31 that operates by receiving a stop request signal from the railroad crossing control device 60. The level crossing 10 sounds when the level crossing control relay 64 is restored.

The operation management device 50 is provided with a control relay (not shown) which is an always-restoring type leverage relay for sending an instruction to stop the noise of the level crossing 10 to the level crossing control device 60.
The operating contact 51 of the control relay is connected to the excitation circuit of the noise suppression relay 61 of the railroad crossing control device 60. When the control relay operates and the operation contact 51 of the control relay becomes conductive, the noise suppression relay 61 is activated. Is energized and operates,
It is in a state to receive a sound stop instruction.

In the excitation circuit of the A relay 62, a noise stop operation contact 71a that conducts when the noise stop relay 61 operates, and a home track restoration contact 72 that conducts when the train is on the platform of the station 28 are provided. , And a code UP recovery contact 73 that is opened when the code-up relay 65 operates is connected in series. Further, the noise stop operation contact 71
An A-operation contact 74a for forming a self-holding circuit of the A relay 62 is provided in parallel with a.

An A-operation contact 74b, which conducts when the A-relay 62 operates, is connected to the excitation circuit of the C-noise relay 31 of the automatic train control device 30.
The stop request signal is sent from the railroad crossing control device 60 to the automatic train control device 30 by the operation of the relay 62.

The C noise suppression relay 31 of the automatic train control device 30 includes a C noise suppression operation recovery contact 32. The automatic train control device 30 controls the 2T track circuit 22 and the 3T track circuit 2 when the C-noise relay 31 is restored.
When the C-noise relay 31 is operating, the orbit circuits 22 and 23
A 01ATC signal, which is a stop instruction, is transmitted.

The excitation circuit of the silence prevention P relay 63 conducts when the C silence prevention relay 31 of the automatic train control device 30 operates, and conducts when the 01 code is transmitted. The GK recovery contact 34 is connected in series. A noise stop recovery contact 75 that is opened when the noise stop relay 61 operates is connected to an excitation circuit of the cord-up relay 65 included in the level crossing control device 60.

The excitation circuit of the railroad crossing control relay 64 includes a 1T operation contact 76, 2T which is opened when a train detector provided corresponding to the track circuits 21 to 25 detects the presence of a train.
The operating contacts 77, 3T operating contacts 78, 4T operating contacts 79 and F5T operating contacts 80 are connected in series. In addition, a noise stop operation contact 71b and a noise stop P operation contact 81 are connected in series with the 2T operation contact 77.

Next, the operation will be described. When the train stops at the station 28 due to a failure or the like, since the train is on the 2T track circuit 22, the 2T operation contact 77 is opened, the level crossing control relay 64 is restored, and the level crossing 10 sounds. I do. In such a case, the station staff at the station 28 verbally requests the operation control room to stop the railroad crossing 10 by telephone or the like.

In response to this, a staff member of the operation control room turns on the operating contact 51 of the control relay by using a lever, and from the operation management device 50, stops the sound stop relay 61 of the railroad crossing control device 60.
Is operated to send a sound stop instruction. In addition,
The control relay of the operation management device 50 operates only when the train is stopped on the platform of the station 28 for 60 seconds or more. If there is no train on the platform track, the staff will not be allowed to take the leverage.

When the silence suppression relay 61 is operated by the silence request from the operation management device 50, the silence restoration contact 75 is opened, and the code-up relay 65 is restored.
The code UP recovery contact 73 conducts. When the silence relay 61 operates, the silence operation contact 71a.
Becomes conductive. Here, when the failed train is stopped on the home track, the home track restoration contact 72 is restored and becomes conductive, so that the A relay 62 operates.

On the other hand, when the faulty train is not stopped on the home track, the home track recovery contact 72 is in the open state, so that the A relay 62 operates even if a sound stop instruction is received from the operation management device 50. do not do. A relay 6
When the switch 2 operates, the A-operation contact 74a conducts, so that the A-relay 62 is held by itself even if the noise-stopping operation contact 71a is subsequently opened.

When the A relay 62 operates, the A operating contact 7
4b is turned on, and the C-noise relay 31 of the automatic train control device 30 is excited to operate. By this operation, a stop request instruction has been transmitted from the railroad crossing control device 60 to the automatic train control device 30. When the C-sound stop relay 31 operates, the automatic train control device 30 transmits a 01 ATC signal to the 2T track circuit 22 and the 3T track circuit 23 through the C-sound stop operation restoration contact 32, and the train that has failed at the station 28 is identified. Control not to start. Here, 3T track circuit 2
The reason why the 01 code is also transmitted to 3 is to further enhance security.

The automatic train control device 30 has the 2T track circuit 2
When a stop instruction by the 01ATC signal is sent to the 2,3T track circuit 23, the GK recovery contact 34 is conductive, and the operation of the C noise stop relay 31 also causes the C noise stop operation contact 33 to be conductive. The P-relay 63 is excited to operate. This is the crossing control device 6
The response is that the train has been stopped in response to a request from 0.

When the noise stop P relay 63 of the railroad crossing control device 60 operates in response to the response from the automatic train control device 30, the noise stop P operation contact 81 conducts. Also, since the silencing relay 61 is operating, the silencing operation contact 71b is provided.
Also conducts. Therefore, even if the train stops at the station 28, the 2T restoration contact 77 is formed by these contacts.
The railroad crossing control relay 64 is excited, and the sound of the railroad crossing 10 stops.

When the failure of the train is corrected, the station staff at the station 28 notifies a request to stop the noise stop of the railroad crossing 10 to the staff in the operation control room. As a result, the operating contact 51 of the control relay is opened, and the noise stop relay 61 of the railroad crossing control device 60 is restored.

When the sound stop relay 61 is restored, the sound stop operation contact 71b is opened.
Is restored, and the sound of the railroad crossing starts again. When the silence prevention relay 61 is restored, the silence restoration contact 75 is turned on,
After a predetermined time (here, after 20 seconds), the code-up relay 65 operates, the code-up recovery contact 73 is opened, and the A-relay 62 recovers. Therefore, the A operation contact 74b is opened, the C noise suppression relay 31 of the automatic train control device 30 is restored, the C noise suppression operation restoration contact 32 moves to the restoration side, and the 2T track circuit 22, 3T track circuit 23 The contents of the transmission to the station 28 are coded, and the train at the station 28 can run.

As described above, when the railroad crossing control device 60 receives an instruction to stop the noise from the railroad crossing 10 from the operation control room, it is confirmed that the train is stopped on the platform of the station 28 and the automatic train control device 30 The train stopped at the station 28 is immobilized, and after receiving a response from the automatic train control device 30 that the immovable state has been set, the railroad crossing 1
Since the ringing of 0 is stopped, sufficient safety can be ensured even if the ringing is stopped.

The operation management device 50 and the railroad crossing control device 6
0 is a non-failure communication between the railroad crossing control device 60
Is falsely recognized as having received a sound stop instruction from the operating contact 51 of the control relay, the railroad crossing control device 60 checks whether or not the train is stopped on the platform track. Does not send a stop request to the automatic train control device 30.

Further, since the code is raised after a lapse of a predetermined X seconds (for example, 20 seconds) after the ringing of the railroad crossing is restarted, when the failed train starts, the railroad crossing is already performed.
Is sounding, and safety can be ensured.

In the embodiment described above, the circuit for stopping the sound by the relay is configured, but the same operation may be performed by software using a CPU (Central Processing Unit).

[0039]

According to the railroad crossing control device of the present invention,
When the train stop is stopped in the railroad crossing control section, etc., an instruction to stop the railroad crossing is received from the operation management device, and after confirming again that the faulty train has stopped at the station, stopping at the automatic train control device After transmitting a request instruction and receiving a response from the automatic train control device indicating that the train in the station premises cannot be moved, the sound of the railroad crossing is stopped. Thereby, even if the communication between the operation management device and the railroad crossing control device main body is non-failure, it is possible to stop the sounding of the railroad crossing remotely while ensuring sufficient safety.

[Brief description of the drawings]

FIG. 1 is a circuit diagram illustrating an outline of a circuit configuration of a railroad crossing control device and peripheral devices according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram schematically showing a track circuit near a railroad crossing under the control of the railroad crossing control device according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a communication state among an operation management device, a railroad crossing control device, and an automatic train control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Railroad crossing 21-25 ... Track circuit 26 ... Railroad crossing control section 28 ... Station 30 ... Automatic train control device 31 ... C noise stop relay 32 ... C noise stop operation recovery contact 33 ... C noise stop operation contact 34 ... GK recovery contact 50 ... Operation management device 51 ... Operation contact of control relay 60 ... Level crossing control device 61 ... Sound stop relay 62 ... A relay 63 ... Sound stop P relay 64 ... Level crossing control relay 65 ... Cord up relay 71a, 71b ... Sound stop operation contact 72 ... Home orbit restoration contact 73 ... Code UP restoration contact 74a, 74b ... A operation contact 75 ... Sound stop restoration contact 76 ... 1T restoration contact 77 ... 2T restoration contact 78 ... 3T restoration contact 79 ... 4T restoration contact 80 ... F5T restoration contact 81 … Sound stop P operation contact

──────────────────────────────────────────────────続 き Continuation of the front page (72) Takashi Jumonji 2-29, Heian-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture 1 within the Keisan Seisakusho Co., Ltd. (56) References JP-A-1-240363 (JP, A JP-A-2-18159 (JP, A) JP-A-5-58301 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B61L 29/00-29/32

Claims (1)

(57) [Claims] 1. A section comprising a plurality of track circuits existing between a railroad crossing and a predetermined distance before the railroad crossing, wherein a railroad crossing control section is set such that the railroad crossing sounds when a train is present in the section. A railroad crossing control device for stopping the sounding of the railroad crossing when a failed train stops at a station, comprising: a railroad crossing control device that controls the sounding of the railroad crossing; A response transmitting means is provided on the automatic train control device side for instructing the maximum speed limit by transmitting a predetermined signal from the ground to each of the above trains, and the train stop instruction means is an operation management for managing the operation of the train When a noise stop instruction to stop the sound of the railroad crossing is received from the device and the train is on the track in the station yard, the automatic train control device includes at least the track circuit having the station and the The automatic train control device instructs to transmit a stop instruction toward a train in the track circuit adjacent to the railroad crossing side, and the automatic train control device transmits the stop instruction from the train stop instruction device. When the transmission of the stop instruction is completed for the train in the track circuit specified in accordance with the instruction, a response signal indicating the completion is transmitted to the railroad crossing control device main unit, and the railroad crossing sound stopping means is provided with the response signal. A level crossing control device that stops sounding of the level crossing when receiving the response signal from a means.