JPH10194123A - Automatic train control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower the equipment cost by providing a track circuit with a means for sending the train existence detecting signal and the train control signal and a means for receiving these signal, and in the case where the train detecting signal can not be received, sending the train control signal till a train enters a following track circuit. SOLUTION: When a train A enters a non-insulated track circuit TA, a TA receiving unit 3A can not receive the train detecting signal (TD signal), which has been received till this stage, due to the generation of short circuit generated by an axle of the train A, and a train detecting relay TAR is turned off, and the signal for informing the existence of train in the track circuit TA is output. A contact of a switch circuit S1 is switched from a TD signal generating unit 1 side to an ATC signal generating unit 2 side, and the ATC signal is output to the track circuits TA, TB, and the train A on the track circuit TA takes in the ATC signal, and the predetermined train control is enabled. When the train A rides over a point P0 and enters a track circuit TB, a train detecting relay TBR is turned off, and the signal for informing the existence of train in the track circuit TB is output.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic train control apparatus for detecting a train using a non-insulated track circuit and transmitting a train control signal to a train using the non-insulated track circuit. About.

[0002]

2. Description of the Related Art Conventionally, in order to detect a train using a non-insulated track circuit, a rail forming two non-insulated track circuits adjacent to each other (hereinafter referred to as a "track circuit" including this rail) is used. A transmitter for transmitting a train detection signal is provided at a central position, and receivers for receiving the train detection signal are provided at both ends of both non-insulated track circuits apart from the central position. (For example,
July 20, 1991, "Signal", 17th edition, page 732, issued by Koyusha Co., Ltd. ).

[0003] In the above configuration, on the non-insulated track circuit,
When the train is not on-rail, its non-insulated track circuit is not short-circuited by the axle (wheels) of the train, so that the receiver can receive the train detection signal from the transmitter. Therefore, when receiving the train detection signal, the train detection relay (track relay) provided in the receiver
Can be lifted (ON), and a no-train signal can be output on the non-insulated track circuit.

On the other hand, when a train is on a non-insulated track circuit, the non-insulated track circuit is short-circuited by the train axle, and the receiver does not receive the train detection signal from the transmitter. Therefore, the train detection relay provided in the receiver falls (OFF), and a signal indicating that there is a train can be output on the non-insulated track circuit.

In order to transmit a train control signal (hereinafter, referred to as an "ATC signal") from the ground to a train on the non-insulated track circuit, an end of the non-insulated track circuit on which the train advances is provided by: A transmitter for transmitting an ATC signal is connected (for example, the aforementioned “signal”, page 733).

[0006] In the above configuration, when the train is on the non-insulated track circuit, the ATC signal transmitted to the non-insulated track circuit can be received by the on-board child and taken into the on-board device. Therefore, on the vehicle, various train controls such as train speed control can be performed using the received ATC signal.

[0007]

However, in the above-mentioned conventional automatic train control device, in order to perform the train detection and the transmission of the train control signal, it is necessary to transmit the train detection signal and the train control signal for each track circuit. There was a drawback that equipment and a train detection signal receiver had to be provided, and equipment cost was increased.

Accordingly, the present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide an automatic train control device capable of reducing equipment costs.

[0009]

In order to achieve the above object, an automatic train control apparatus according to the present invention is a train detection system for transmitting a train detection signal for detecting the presence or absence of a train on a non-insulated track circuit. Signal transmitting means, signal transmitting means for transmitting a train control signal to the train traveling on the non-insulated track circuit, and any of the train detection signal and the train control signal from the track circuit Receiving means that can also receive the train control signal from the train control signal transmitting means in place of transmitting the train detection signal when the receiving means no longer receives the train detection signal. Transmission control means for transmitting a train detection signal instead of the train control signal when the train enters the next non-insulated track circuit on the side where the train advances. When To have. Further, the train control signal from the train control signal transmission means is transmitted to the center position of two non-insulated track circuits adjacent to each other and the train of the two non-insulated track circuits adjacent to each other advances. Supply at any of the end positions of the train, and when the receiving means no longer receives the train control signal from the side on which the train advances, the supply of the train control signal is stopped at the center of the train. A switching means is provided for switching from the position to the end position.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an automatic train control device according to one embodiment.

In the figure, TA and TB are adjacent non-insulated track circuits (hereinafter referred to as "track circuits") formed by dividing a rail r on which a train (not shown in FIG. 1) runs into a predetermined length. At a center position P0 of the track circuits TA and TB corresponding to the junction of the track circuits TA and TB.
It is called "TD signal". ) And an ATC signal generator 2 that generates a train control signal (hereinafter, referred to as an “ATC signal”).

That is, at the center position P0, a switch circuit S1 constituting the transmission control means of the present invention, a transmitter A for amplifying the TD signal or the ATC signal, and a switch constituting a part of the switching means of the present invention. A TD signal generator 1 and an ATC signal generator 2 are connected via a circuit S2 in series.

The TD signal generator 1 uses another track circuit (T ', T "in the example of FIG. 1) like a TD signal generator for generating a TD signal used in a known non-insulated track circuit. It is formed by a signal having a predetermined frequency, selected to be sufficiently distinguishable from the TD signal used.

The ATC signal generator 2 is configured similarly to a well-known ATC signal generator for transmitting an ATC signal from the ground to the vehicle. Therefore, from the ATC signal generator 2, a predetermined carrier is formed by an ATC signal modulated with, for example, forward train information.

The switch circuit S1 is constituted by a contact point of a train detection relay TAR, which will be described later, and is configured so that the TD signal from the TD signal generator 1 and the ATC signal from the ATC signal generator 2 can be selected alternatively. ing. The switch circuit S2 is constituted by a contact point of a train detection relay TBR, which will be described later.
It is configured so that the TC signal can be supplied to any of the center position P0 and the position PB of the end of the rail r of the track circuit (TB in the example of FIG. 1) on the exit side of the train circuit.

The TD signal generator 1, the ATC signal generator 2, and the switch circuit S1 are shown individually, but they are divided into blocks to facilitate the description of the operation of the present invention. And a shared transmitter 1 for transmitting a TD signal and an ATC signal as shown in FIG.
0. More specifically, the shared transmitter 10 always transmits a TD signal, and when the train detection relay TAR falls, that is, when the switch circuit S1 is connected to the ATC signal generator 2, the TD signal is transmitted. The ATC signal is replaced with the center position P0 or the end position PB.
It is configured to be able to send to.

In the figure, 3A and 3B denote a receiver for a track circuit TA (hereinafter referred to as a “TA receiver”) and a track circuit T.
A receiver for B (hereinafter referred to as a "TB receiver"), which is connected to positions PA and PB at the ends of the rail r opposite to the center position P0 of the two track circuits TA and TB, respectively. . Although not shown, these receivers 3A and 3B include a switch circuit that operates in synchronization with the switch circuit S1 and a TD signal from the TD signal generator 1 and an ATC signal generator 2 that are obtained through the switch circuit. ATC from
It is configured to include a band-pass filter, an amplifier circuit, and the like that pass signals. Therefore, the receivers 3A and 3B can receive the TD signal when the switch circuit S1 is connected to the TD signal generator 1, and when the switch circuit S1 is connected to the ATC signal generator 2. Can receive an ATC signal.

The receivers 3A and 3B have a TD
When a TD signal from the signal generator 1 is received, or
When the ATC signal from the C signal generator 2 is received, the train detection relays (track relays) TAR and TBR connected to the receivers 3A and 3B are turned on, and any of the TD signal and the ATC signal is turned on. Signal cannot be received, the train detection relays TAR and TBR are turned off.
It is configured to perform FF.

Furthermore, of these receivers 3A and 3B, the track circuit T in the direction in which the train advances (forward direction)
The TB receiver 3B connected to B is connected via a switch circuit S3 forming a part of the switching means of the present invention. This switch circuit S3 is provided with a train detection relay TB
The TB receiver 3B can be connected from the end PB of the track circuit TB to the center position P0 by an R contact.

The track circuits T ', T "provided on both sides of both track circuits TA, TB, respectively, are omitted in FIG. 1, but have the same configuration as the above-described both track circuits TA, TB. Therefore, the T 'receiver 4 of the track circuit T'
T 'has the same configuration as the TB receiver 3B of the track circuit TB, and the T "receiver 5T" of the track circuit T "has the same configuration as the TA receiver 3A of the track circuit TA. .

In FIG. 1, the TD signal generator 1
And the ATC signal generator 2 is at the center position P0,
The A receiver 3A and the TB receiver 3B are located at end positions PA and P
It is shown as being installed in B respectively,
This is for the sake of simplicity. Actually, these devices include devices for other track circuits, that is, devices not shown including track circuits TA, TB, T ′, T ″,. Installed in a room.

Next, the control operation will be described with reference to FIG. 1 and FIGS. First, as shown in FIG. 1, a description will be given of a state in which no train is present on the track circuits TA and TB.

When there is no train in any of the track circuits TA and TB, the switch circuits S1 and S2 are set to TD
Each contact is set so as to connect the signal generator 1 to the center position P0. Therefore, TAs connected to the end positions PA and PB of the track circuits TA and TB, respectively,
The TB receivers 3A and 3B receive the TD signal, turn on the train detection relays TAR and TBR, respectively, and output the track circuits TA and no TB train.

As shown in FIG. 3, when the train A enters the track circuit TA, the TA receiver 3A short-circuits the previously received TD signal on the axle of the train A and cannot receive it. , Thereby the train detection relay TAR turns off
It becomes F. As a result, a signal indicating that there is a train is output to the track circuit TA.

When the train detection relay TAR is turned off, the contact of the switch circuit S1 is switched from the TD signal generator 1 to the AT
The signal is switched to the C signal generator 2 side.
ATC signals are output to A and TB. Therefore, the train A on the track circuit TA is connected to the AT via a vehicle arm (not shown).
The C signal can be taken in, and predetermined train control such as train speed control can be performed based on the ATC signal.

On the other hand, the TB receiver 3B receives an ATC signal in place of the TD signal received so far. T
The B receiver 3B also turns on the train detection relay TBR while receiving this ATC signal, and outputs no train on the track circuit TB.

As shown in FIG. 4, when the train A enters the track circuit TB beyond the central position P0, the ATC signal which has been received by the TB receiver 3B is received due to the short circuit of the axle of the train A. No longer available, train detection relay TBR
Is turned off, thereby outputting the presence of a train on the track circuit TB.

When the train detection relay TBR is turned off, the contacts of the switch circuits S2 and S3 are switched. As a result, the ATC signal from the ATC signal generator 2 is supplied from the center position P0 to the end position PB, and the ATC signal is supplied to the train A on the track circuit TB.

FIG. 5 shows a state in which the train A has advanced from the track circuit TB to the track circuit T ″ in front.
When the train A no longer exists on the track circuit TB, the TB receiver 3B can receive the ATC signal, so that the train detection relay TBR is turned on, whereby the contacts of the switch circuits S2 and S3 are The original state, that is, the state shown in FIG. On the other hand, since the TA receiver 3A can also receive the ATC signal, the train detection relay TAR is turned ON, and the contact of the switch circuit S1 is in the original state, that is, FIG.
Is switched from the ATC signal to the TD signal.

As described above, the train control device according to the present embodiment can detect the train using the ATC signal, so that the number of devices provided for each track circuit can be reduced, and the equipment cost can be reduced.

[0031]

The automatic train control device according to the present invention comprises: a train detection signal transmitting means for transmitting a train detection signal for detecting the presence or absence of a train to a non-insulated track circuit; Signal transmitting means for transmitting a train control signal to a running train; receiving means capable of receiving any of the train detection signal and the train control signal from the track circuit; When the means no longer receives the train detection signal, a train control signal is sent from the train control signal sending means in place of sending the train detection signal, and the next train on the side on which the train advances. When a train enters a non-insulated track circuit, the transmission control means for transmitting the train detection signal in place of the train control signal can be used. It can be reduced. Further, the train control signal from the train control signal transmitting means is transmitted to the center position of two adjacent non-insulated track circuits, and the side of the two non-insulated track circuits adjacent to each other where the train advances. And when the receiving means no longer receives the train control signal from the side where the train is moving out, the supply of the train control signal is When switching means for switching from the position to the end position is provided, the ATC signal can be transmitted effectively.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of a shared transmitter for a TD signal and an ATC signal.

FIG. 3 is an explanatory diagram showing a signal flow corresponding to a train position.

FIG. 4 is an explanatory diagram showing a signal flow corresponding to a train position.

FIG. 5 is an explanatory diagram showing a signal flow corresponding to a train position.

[Explanation of symbols]

 Reference Signs List 1 TD signal generator 2 ATC signal generator 3A TA receiver 3B TB receiver S1 to S3 Switch circuit TAR, TBR Train detection relay TA, TB Track circuit r Rail b Train

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tamio Okutani 2-14-2 Nagatacho, Chiyoda-ku, Tokyo Japan Railway Construction Corporation

Claims (2)

[Claims] 1. A train detection signal transmitting means for transmitting a train detection signal for detecting the presence or absence of a train on a rail forming a non-insulated track circuit; Signal transmitting means for transmitting a train control signal to a train running on the train, and receiving capable of receiving any of the train detection signal and the train control signal from a rail forming the track circuit. Means, when the receiving means no longer receives the train detection signal, a train control signal is sent from the train control signal sending means in place of sending the train detection signal, and the train advances. And a transmission control means for transmitting a train detection signal in place of the train control signal when a train enters the next non-insulated track circuit on the moving side. Car control device. 2. A train control signal from a train control signal transmitting means is used to form two adjacent non-insulated track circuits and two adjacent non-insulated track circuits forming two adjacent non-insulated track circuits. And the receiving means receives a train control signal from the rail on which the train advances, while supplying the rail to any of the end positions of the rail on which the train advances. 2. The automatic train control device according to claim 1, further comprising switching means for switching the supply of the train control signal from the center position to the end position when the train control signal runs out.