JP2010163030A - Train control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate any sneaking of the ATC signal wave at the same transmission-reception point, and to perform the optimum adjustment as the TD signal by adjusting the reception level of the TD signal wave irrespective of the ATC signal wave. <P>SOLUTION: The TD signal wave which advances from a track circuit 3T with a train 1 being on-track therein to a track circuit 4T in an inner section having an advancing path, and is transmitted to the track circuit 4T with the train 1 being advanced therein is changed into the ATC signal wave. At the same time, the ATC signal wave which is transmitted since the rear part of the train 1 is on-track in the track circuit 3T of its rear section is changed into the TD signal wave. Thus, transmission and reception of the ATC signal wave across the track circuit boundary is prevented and the sneaking preventive countermeasures of the ATC signal wave at the same transmission-reception point is reliably taken. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a train control device in which a train detection function in an uninsulated track circuit and a function of transmitting speed control information to a train are integrated.

  The train control device that exchanges information between the ground and the train in order to automatically control the train speed below the speed limit, the stop target position determined in advance by the distance from the preceding train and the conditions of the route such as curves and branches And an encoded train control signal wave (ATC signal wave) indicating the current on-line position is transmitted from the ground to the train, and the on-board device is based on the verification speed pattern to the stop target position calculated from the received ATC signal wave. It is a method of continuously decelerating the train.

  A conventional train control device that uses a track circuit to transmit information between the ground and the train and detects the train and automatically controls the train speed to be below the speed limit is shown in Patent Document 1. As described above, the train detection signal wave (TD signal wave) and the ATC signal wave are separately transmitted to the track circuit. The TD signal wave is always transmitted from the boundary of each track circuit on the train advance side, and when the transmitted TD signal wave is received on the train entry side of the track circuit, it is determined that there is no train in the track circuit. When a train enters the track circuit without the train and receives a TD signal wave on the train entry side, it is determined that the train is on the track circuit. The ATC signal wave is used for stepping transmission that is transmitted from the boundary of the train advancement side only to the track circuit where the train is located.

  At the boundary of the non-insulated track circuit, as shown in FIG. 5, the transmission / reception points of the 3T transmitter 5 of the track circuit 3T and the 4T receiver 7 of the track circuit 4T are provided at the same position as shown in FIG. The 3T transmission wave from the 3T transmitter 5 of the track circuit 3T wraps around the 4T receiver of the track circuit 4T. Assuming that the TD signal wave wraps around the track circuit, a plurality of waves are prepared and the adjacent track circuit 3T and the track circuit 4T have different frequencies, and the 4T receiver 7 of the track circuit 4T has a TD for the track circuit 4T. In general, a band filter 6 for receiving a signal wave is provided to separate a TD signal wave transmitted from the 3T transmitter 5 of the track circuit 3T.

  Since the ATC signal wave is transmitted from the boundary on the train advance side of the track circuit where the train 1 is present, as shown in FIG. 5, the train 1 traveling on the track circuit 3T is connected to the track circuit 3T and the track circuit 4T. , The first part of the train 1 enters the track circuit 4T and the rear part of the train 1 is in the track circuit 3T, an ATC signal is transmitted to both the track circuit 3T and the track circuit 4T, and the track The 3T ATC signal wave transmitted to the circuit 3T goes around to the 4T receiver 7 of the track circuit 4T. For this reason, there are the following technical problems.

  In the non-insulated track circuit, the transmission / reception level at the transmission / reception points of the track circuits adjacent to each other has a maximum difference of 60 dB (1,000 times). In order to prevent wraparound from the transmission side to the reception side at the same transmission point, it is necessary to provide a band filter for the reception frequency that separates frequencies and has a sorting ability of 60 dB or more. In stepping transmission in which an ATC signal wave is transmitted to a track circuit where a train is present, the ATC signal wave is normally one wave, and a bandpass filter cannot be used. In this case, the ATC signal wave is separated by each track circuit ID to be transmitted, etc., but it is necessary to provide a receiver that reaches a maximum of 60 dB in each track circuit, which is technically difficult.

  TD signal waves and ATC signal waves having different frequency bands have different reception levels depending on the characteristics of each track circuit. However, since the ATC signal wave transmits information on the vehicle, unlike the train detection, the reception level cannot be determined unlike the TD signal wave. Therefore, there is a problem that there is no specificity of the transmission level adjustment function and the reception level adjustment function although it is essential that the transmission / reception level is different between the ATC signal wave and the TD signal wave.

  The present invention eliminates such technical problems, eliminates the wraparound of the ATC signal wave at the same transmission / reception point, and can adjust the reception level of the TD signal wave independently of the ATC signal wave. Is intended to provide.

  The train control device according to the present invention transmits a TD signal wave, which is a signal wave for train detection, from one boundary of the track circuit when the train is not on the non-insulated track circuit, and transmits the TD signal wave being transmitted. In the train control device that receives the signal at the other boundary of the track circuit and transmits the TD signal transmitted from one boundary of the track circuit by switching to the ATC signal when the train is present, the train is The TD signal wave transmitted to the track circuit in which the train entered after entering the track circuit in the inner section where the route is configured is switched from the track circuit to the ATC signal wave and transmitted to the track circuit in the rear section. The ATC signal wave is switched to a TD signal wave.

  Further, a TD signal wave is transmitted to each track circuit when a device for transmitting and receiving the signal wave to and from the track circuit is turned on and after a predetermined time for switching to the ATC signal wave.

  The present invention switches the TD signal wave transmitted from the track circuit where the train is located to the track circuit of the inner section where the route is configured to the track circuit where the train has entered to the ATC signal wave at the same time. Since the ATC signal wave being transmitted is switched to the TD signal wave because the rear of the train is in the track circuit in the rear section, it is possible to prevent transmission and reception of the ATC signal wave across the track circuit boundary, It is possible to surely take measures to prevent the ATC signal wave from coming around at the same transmission / reception point.

  Further, since the ATC signal wave wraparound at the same transmission / reception point can be reliably prevented, the transmission output level adjustment at the boundary of the track circuit on the train advance side gives priority to the ATC signal wave, and the reception input at the boundary of the track circuit on the train entrance side The level can be optimally adjusted as a TD signal regardless of the ATC signal wave.

  In addition, when a device that transmits and receives signal waves to and from the track circuit is turned on, and after a certain period of time to switch to the ATC signal wave, a TD signal wave is transmitted to each track circuit, so that it can be surely set to the state where the train is absent. It is possible to detect the non-present line and the present line of the train normally.

It is a block diagram which shows the structure of the train control apparatus of this invention. It is a block diagram which shows the structure of a transmitter and a receiver. It is a block diagram which shows the structure of a vehicle-mounted apparatus. It is a signal wave production | generation / transmission procedure figure which shows switching of the TD signal wave and ATC signal wave which are transmitted to a track circuit. It is a schematic diagram which shows the wraparound of the ATC signal wave by a prior art example.

  FIG. 1 is a block diagram showing the configuration of the train control device of the present invention. The train control device detects the position of the train 1 and automatically controls the speed of the train 1 to be equal to or less than the speed limit, and includes a ground device 2 and an on-board device 3 mounted on the train 1.

  The ground device 2 includes 1T transmitters 5a to 4T transmitters 5d connected to boundaries 18a to 18d of the track circuits 1T to 5T via matching transformers 4a to 4d, and boundaries 18a to 18d of the track circuits 1T to 5T. 2T receiver 7a-5T receiver 7d connected to matched transformers 4a-4d and band-pass filters 6a-6d and a condition communication circuit 8. As shown in the block diagram of FIG. 2, the 1T transmitter 5a to 4T transmitter 5d include a signal wave generator 9 and a transmitter 10. The signal wave generator 9 generates a TD signal wave and inputs an ATC signal wave for controlling the speed of the train 1 by inputting a route condition such as position information of a preceding train sent via the condition communication circuit 8. It generates every track circuit 1T-4T. The transmission unit 10 transmits either the TD signal wave or the ATC signal wave generated by the signal wave generation unit 9 from the boundaries 18a to 18d on the train advance side of the track circuits 1T to 4T via the matching transformers 4a to 4d. The 2T receivers 7a to 5T receiver 7d include a receiving unit 11 and a train detection unit 12. The receiver 11 receives the TD signal wave transmitted to the track circuits 2T to 5T at the boundaries of the train entry sides 18a to 18d of the track circuits 2T to 5T. The train detection unit 12 detects whether or not the train 1 is present on the corresponding track circuit based on whether or not the TD signal wave transmitted to the corresponding track circuit is received by the reception unit 11.

  As shown in the block diagram of FIG. 3, the on-board device 3 includes a receiver 13, a calculation processing unit 14, a speed checking unit 15, and a speed control unit 16. The receiver 13 receives the ATC signal wave transmitted to the track circuits 1T to 5T via the vehicle upper member 17. The arithmetic processing unit 14 creates a speed pattern of the train 1 with reference to speed limit information included in the ATC signal wave received by the receiver 13. The speed checking unit 15 checks the speed pattern created by the arithmetic processing unit 14 against the speed of the train 1. The speed control unit 16 controls the brake device and the like according to the check result of the speed check unit 15 so that the speed of the train 1 is equal to or lower than the speed limit.

  The operation when the train control device generates and transmits the TD signal wave and the ATC signal wave from the transmitter 5 will be described with reference to the signal wave generation / transmission procedure diagram of FIG.

  For example, as shown in FIG. 4A, when the train 1 does not exist on the track circuit 2T and the track circuit 4T and the train 1 exists on the track circuit 3T, the boundary 18b on the train advance side of the track circuit 2T. The signal wave generator 9 of the 2T transmitter 5b connected to the 4T transmitter 5d connected to the boundary 18d on the train advance side of the track circuit 4T generates a TD signal wave of a predetermined frequency and sends it to the transmitter 10 . The transmitter 10 transmits the transmitted TD signal wave to the track circuit 2T and the track circuit 4T. The TD signal wave transmitted to the track circuit 2T and the track circuit 4T is connected to the 2T receiver 7a connected to the train entry side boundary 18a of the track circuit 2T and the 4T connected to the train entry side boundary 18c of the track circuit 4T. The signal is received by the receiving unit 11 of the receiver 7c and sent to the train detection unit 12, and the train detection unit 12 makes it clear that the train 1 does not exist in the track circuit 2T and the track circuit 4T.

  On the other hand, the signal wave generator 9 of the 3T transmitter 5c connected to the train advance side boundary 18c of the track circuit 3T where the train 1 is located is received by being connected to the train entrance side boundary 18b of the track circuit 3T. The ATC signal wave is generated from the train detection information detected by the device 7b and sent to the transmission unit 10. The transmitter 10 transmits the sent ATC signal wave to the track circuit 3T and sends it to the train 1 existing in the track circuit 3T.

  In this state, as shown in FIG. 4B, the train 1 travels on the track circuit 3T, and the leading portion of the train 1 enters the track circuit 4T from the boundary 18c on the train advance side of the track circuit 3T. The TD signal wave sent to 4T is short-circuited at the axle of the train 1, and no TD signal wave is received at the receiving unit 11 of the 4T receiver 7c connected to the boundary 18c on the train entry side of the track circuit 4T. When the train detection unit 12 detects that the train 1 has entered the track circuit 4T, the train detection information is transmitted via the condition communication circuit 8 to the 4T transmitter 5d connected to the boundary 18d on the train advance side of the track circuit 4T. It is sent to the 3T transmitter 5c connected to the boundary 18c on the train advance side of the track circuit 3T. When the train detection information indicating that the train 1 has entered the track circuit 4T is sent to the signal wave generator 9 of the 4T transmitter 5d, the generation of the ATC signal wave is switched from the generation of the TD signal wave to the generation of the ATC signal wave. Is transmitted from the transmitter 10 to the track circuit 4T. On the other hand, the signal wave generator 9 of the 3T transmitter 5c connected to the boundary 18c on the train advance side of the track circuit 3T generates a train detection information indicating that the train 1 has entered the track circuit 4T. The ATC signal wave is immediately switched to the TD signal wave and transmitted from the transmitter 10 to the track circuit 3T. Therefore, the TD signal wave transmitted to the track circuit 3T only wraps around the 4T receiver 7c and the track circuit 4T connected to the boundary 18c between the track circuit 3T and the track circuit 4T, and the ATC signal wave is prevented from wrapping around. .

  Thus, when switching between the TD signal wave and the ATC signal wave is performed on the assumption that the train 1 moves in a predetermined direction while preventing the ATC signal wave from wrapping around, the train moves due to equipment failure of the transmitter 5 or the like. If an unaccompanied drop in the track circuit occurs, the failure is recovered by replacing the device and the device power is turned on, and the 1T transmitters 5a to 4T transmitter 5d automatically send TD signal waves to the track circuits 1T to 4T, respectively. Transmission is performed to return the track circuits 1T to 4T to the non-train presence detection state. The section where the train 1 is present is detected by the transmitted TD signal wave.

  In addition, for example, when switching to an ATC signal wave by nighttime maintenance vehicle non-blocking operation or daytime emergency reverse operation, the track circuits 1T to 4T are switched to the track circuits 1T to 4T after a predetermined time and minutes. The TD signal wave is automatically transmitted to return the track circuits 1T to 4T to the train absence line detection state, and the presence line of the train 1 is correctly detected by the transmitted TD signal wave.

1; train, 2; ground device, 3; on-board device, 4; matching transformer, 5; transmitter,
6; band filter, 7; receiver, 8; condition communication circuit, 9; signal wave generator,
10; Transmitter, 11; Receiver, 12; Train detector, 13; Receiver,
14; arithmetic processing unit, 15; speed checking unit, 16; speed control unit, 17;

Japanese Patent No. 295530

Claims (2)

When there is no train on the non-insulated track circuit, a TD signal wave, which is a signal wave for train detection, is transmitted from one boundary of the track circuit, and the transmitted TD signal wave is transmitted from the track circuit. When the train is received at the other boundary and the train is on line, the train control device that transmits the TD signal transmitted from one boundary of the track circuit by switching to the ATC signal,
The TD signal wave transmitted from the track circuit where the train is located to the track circuit in the inward section where the route is configured and transmitted to the track circuit where the train has entered is switched to the ATC signal wave, and at the same time the rear section A train control device that switches an ATC signal wave transmitted to a track circuit of the vehicle to a TD signal wave. The train control device according to claim 1,
A train control device that transmits a TD signal wave to each track circuit when a device that transmits and receives a signal wave to and from the track circuit is turned on and after a predetermined time of switching to the ATC signal wave.

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