JPH0813647B2 - Fixed position stop 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 fixed position stop control device for stopping a train at a target point, and more particularly to improvement of stop position accuracy.

[0002]

2. Description of the Related Art In recent years, an automatic train operation method (hereinafter referred to as ATO) for automatically controlling operation operations such as speed control and stop of a train.
It is adopted). The ATO operation is a method of always knowing the train speed, position, operating time, preceding train and track condition, controlling the train speed while comparing with the standard operation diagram to operate the train, and stop at a predetermined position.

As a method of automatically stopping this train at a fixed position, as shown in FIG. 7, a brake is applied to the train indicated by A on the distance and speed planes with reference to the stop position O. At this time, a curve corresponding to the deceleration curve that the train follows is set, and the brake device is controlled so as to decelerate along the curve A.

However, it is difficult to make the braking force of the actual train constant, and there is considerable variation. Therefore, even if the train is controlled to decelerate along the curve A, the deceleration curve actually traced by the train. Produces an error with curve A. In order to correct this, for example, a coil row is arranged at a certain interval before the stop position, a signal corresponding to a deceleration curve for stopping the train at the fixed position is set for each coil, and The device is controlled.

[0005]

As described above, since the conventional fixed position stop control device is designed to stop the train at a fixed position by a signal from the coil array installed on the ground, the fixed position stop control device is provided at a fixed interval. It is necessary to arrange many coils along the line, and there is a disadvantage that many devices are installed on the ground.

Further, since the signal corresponding to the deceleration curve is set on the ground, there is no influence of slip or skid between the axle and the rail, and the stop target point is set, compared with the case of controlling by the on-board pattern. For example, the train can be stopped within ± 350 mm, but it is required to control the stop position with higher accuracy.

The present invention has been made in response to such a demand, and an object thereof is to obtain a fixed position stop control device capable of controlling the stop position of a train with a simple structure and with higher accuracy.

[0008]

A fixed position stop control device according to the present invention is a position signal transmission device (2) as a ground device.
A fixed-position stop control device having a position signal receiver (22) and an automatic driving control device (24) as an on-vehicle device, wherein the position signal transmission device (2) is near a stop position on the ground.
Absolute position data indicating distance information from the stop reference position is transmitted by the side, and has a pattern belt (7) and a position signal generator (8), and the pattern belt (7) transmits absolute position data. Signal wave
Loop coil (10) for transmitting and stop transmitting signal wave
The canceling unit (10a) is installed at a fixed distance along the running path of the train.
Each pattern has a plurality of patterns (11) alternately provided for each pattern.
The turn (11) uses the loop coil (10) to run the train.
Are arranged in parallel by shifting the position for each minute distance along
The position signal generator (8) generates position signals of different frequencies and sends them to each pattern (11) of the pattern belt (7), and the position signal receiver (22) sends absolute position data sent from the pattern belt (7). is intended to receive, feed received absolute position data to the automatic driving controller, automatic driving controller is for controlling the brake command, the absolute
A characteristic is that a driving curve pattern is generated from the position data, and the braking command is controlled by comparing the driving curve pattern and the speed signal for each traveling position .

[0009]

According to the present invention, the ground belt is stopped from the pattern belt of the position signal transmitter provided near the stop position of the train.
Absolute position data indicating distance information from the reference position is
Send to trains every small distance. When the train reaches the vicinity of the stop position and receives the absolute position data for each minute distance, the on-vehicle automatic control device generates a driving curve pattern based on the absolute position data, and outputs the driving curve pattern and the speed signal for each absolute position. And a brake command signal is issued to stop the train at a fixed position.

[0010]

1 is a block diagram showing a ground apparatus according to an embodiment of the present invention. As shown in the figure, the ground equipment is ATC
It has a transmitter 1, a position signal transmitter 2, an information transmitter 3, and an operation monitoring device 4. The ATC transmission device 1 determines an allowable speed of a train and transmits an ATC signal. The ATC transmission device 1 determines an allowable speed of each track circuit according to a train-to-train distance detected by the train detection device 16 and a traveling condition, A signal wave corresponding to the allowable speed is sent to the vehicle via the matching transformers 5a to 5f and the ATC loop 6. Position signal transmitter 2 is on the ground
Stop absolute position data indicating distance information from the stop reference position
It is transmitted to the train that has reached the vicinity of the position, and has the pattern belt 7 and the position signal generator 8. The pattern belt 7 transmits absolute position data near the stop position 9, and as shown in FIG. 2, a loop for transmitting a signal wave.
The coil 10 and the cancellation unit 10a for stopping the transmission of the signal wave are arranged in a row.
Putters that are alternately arranged at regular intervals D along the road of the car
Each pattern 11 has a plurality of, for example, seven patterns 11.
The loop coil 10 along the running path of the train at every minute distance d
They are arranged in parallel with the positions shifted. For example, the distance D is 3
Seven patterns 11a to 11g are arranged with a length of 00 mm and a minute distance d of 50 mm. Position signal generator 8
Are signal waves of different frequencies, for example, 7 on the pattern belt 7
When the individual patterns 11a to 11g are arranged, seven types of signal waves are generated between frequencies of 20 to 50 KHz and sent to the patterns 11a to 11g of the pattern belt 7. The information transmission device 3 transmits information between the ground and the train via the coupler 12 and the information transmission loop 13 laid on the ground, and sends a start command, a powering command, an emergency brake command, etc. from the ground to the train. , Receive the operating status of the onboard equipment from the train. In addition, 14 and 15 are termination couplers.

The on-board device has an ATC receiver 21, a position signal receiver 22, an information transmitter / receiver 23, and an automatic driving controller 24, as shown in the block diagram of FIG. The ATC receiver 21 receives the ATC signal sent from the ATC transmitter 1 on the ground via the antenna 25 and receives the ATC signal from the automatic driving controller 24.
Send to The position signal receiver 22 receives an absolute position signal for every 50 mm sent from the pattern belt 7 via the antenna 26 and sends it to the automatic driving controller 24. The information transmitter / receiver 23 transmits information between the automatic driving control device 24 and the ground via the antenna 27. The automatic operation control device 24 controls the operation of the train by a start command and a powering command sent from the information transmission device 3, and issues a speed control and a brake command by an ATC signal. When the train reaches the vicinity of the stop position 9, a running curve pattern is generated from the ATC signal sent from the ATC receiver 21 and the absolute position signal every 50 mm sent from the position signal receiver 22, and the running curve pattern is generated. Pattern
The brake command is controlled by comparing the speed signal for every 50 mm.

The operation of stopping the train at the fixed position by the fixed position stop control device constructed as described above will be described with reference to the flowchart of FIG.

As shown in the traveling pattern diagram of FIG. 5, the train 3
1 is an AT just before the ATC loop 6e where the stop position 9 approaches the stop position 9 of the station while driving while controlling the speed 32 while repeating the power running control, constant speed control, and deceleration control.
When entering the C loop 6d, deceleration control for reducing deceleration is entered to reduce the speed. When the train 31 enters the ATC loop 6e having the stop position 9, the automatic driving control device 2
Reference numeral 4 determines whether or not to detect the absolute position signal sent from the pattern belt 7 on the ground while performing deceleration control by the ATC signal sent from the ATC transmitter 1 (step S1). On the other hand, the position signal transmitting device 2 on the ground constantly generates seven kinds of signal waves having different frequencies from the position signal generating device 8 and each pattern 11a to 11g of the pattern belt 7 is generated.
6 to send absolute position signals of different frequencies fa to fg from each pattern 11a to 11g as shown in FIG. Therefore, the pattern belt 7 always sends out absolute position signals having different polyphase frequencies every 50 mm.

When the train enters the position of the pattern belt 7 and the automatic driving control device 24 detects the absolute position signal sent from the pattern belt 7 via the position signal receiver 22, the pattern control is performed. The absolute position signal from the entering pattern belt 7 is used to check the absolute position of the entry point (step S2). Then, the automatic driving control device 24 generates the driving curve pattern 33 for the stop position 9 based on the absolute position (step S3). In addition, the automatic driving control device 2
4 calculates the actual passing speed from the change of the absolute position signal and the time (step S4), and controls the speed of the train 31 so that the actual passing speed matches the speed of the driving curve pattern 33 with respect to the stop position 9. Yes (step S5). This process is repeated until the train 31 stops (step S6).
When the train 31 stops, it is determined whether the absolute position signal sent at the stopped position matches the stopped position 9 (steps S7 and S8). When the absolute position signal of the stopped position matches the stopped position 9, the door is opened as it is. Also, the absolute position signal of the stopped position indicates the stop position 9
If not, the stop position is calculated from the absolute position signal, and the train 31 is moved forward or backward to the stop position 9 based on the stopped position and the traveling direction information (step S
9). In this way, the train 31 is brought to the predetermined stop position 9.
It can be stopped with an accuracy of 50 mm.

[0015]

As described above, according to the present invention, the absolute position indicating the distance information from the stop reference position on the ground from the pattern belt of the position signal transmitting device provided near the stop position of the train.
When the train reaches the stop position and the absolute position data for each minute distance is received, the operation curve pattern is generated based on the absolute position data. Since the train curve is compared with the speed signal for each absolute position to issue the brake command signal to stop the train, the train can be stopped accurately at a predetermined position.

Further, since the absolute position data is transmitted from the pattern belt at different frequencies near the stop position of the train, the equipment on the ground can be simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing a ground device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a pattern belt.

FIG. 3 is a block diagram showing an on-vehicle device.

FIG. 4 is a flowchart showing the operation of the above embodiment.

FIG. 5 is a running pattern diagram of a train.

FIG. 6 is a waveform diagram of absolute position data sent from a pattern belt.

FIG. 7 is a deceleration curve diagram of a train.

[Explanation of symbols]

 1 ATC transmitter 2 Position signal transmitter 3 Information transmitter 6 ATC loop 7 Pattern belt 8 Position signal generator 9 Stop position 10 Loop coil 21 ATC receiver 22 Position signal receiver 23 Information transmitter / receiver 24 Automatic operation Control device

Claims (1)

[Claims] 1. A position signal transmitting device (2) as a ground device
A fixed position stop control device having a position signal receiver (22) and an automatic driving control device (24) as an on-board device, wherein the position signal transmission device (2) is near a stop position on the ground.
Absolute position data indicating distance information from the stop reference position is transmitted, and has a pattern belt (7) and a position signal generator (8), and the pattern belt (7) transmits absolute position data. And transmit the signal wave
Canceling unit (1) for stopping the transmission of the signal coil and the coil (10).
0a) are provided alternately along the running route of the train at regular intervals
Each pattern (11) has a plurality of patterns (11)
Is a loop coil (10) with a small distance along the running path of the train.
The position signal generators (8) are arranged in parallel at different positions , and position signal generators (8) generate position signals of different frequencies and send them to each pattern (11) of the pattern belt (7) to receive a position signal receiver (22). is intended for receiving absolute position data sent from the pattern belt (7), feed the received absolute position data to the automatic driving controller, automatic driving controller is for controlling the brake command, the absolute
A fixed position stop control device characterized by generating an operation curve pattern from position data , comparing the operation curve pattern with a speed signal for each traveling position, and controlling a brake command.