SU1625755A2 - Device for interval control of train traffic - Google Patents

Abstract

The invention relates to railway automation and telemechanics. The purpose of the invention is to increase reliability. With an unforeseen decrease in the minimum possible inter-train interval, the signal of the appearance of a suitable train from the railroad threads 10 to the comparison unit 13 is received earlier than from the coordinate determination unit 15 of the last carriage of the train. In this case, the block 13 generates a start signal for the error time and sends it to block 11 switching, which begins to count the time of the mismatch and imposes a ban on the passage of the permission signal from the block 12 of the monitoring program of the train's approach to the generator 9 locomotive with ignalization The generator 9 encodes the rail yarns 10 with a frequency that is perceived by receiver 1 of the locomotive signaling as a speed limit of the minimum speed. 1 il. with C

Description

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The invention relates to the field of railway automatics and telemechanics, namely, devices for interval control by train movement, and is an improvement of the device according to the main author. St. No. 1220999.

The purpose of the invention is to increase reliability

The drawing shows a functional diagram of the device.

The device contains a receiver-mounted receiver 1 connected to locomotive coils 2, a control signal receiver 3 connected to other locomotive coils 4, and an output to a control signal transmitter input 5 connected to a transmitting coil 6. On the way they are set to a pilot signal transmitter 7 connected to rail threads 8 and an automatic locomotive signal generator 9 connected to rail threads 10 of an adjacent block section. The input of the generator 9 is connected to the output of the switching unit 11, one of the inputs connected to the output of the block 12 of the train proximity control, and the other to the output of the comparison unit 13, one of the inputs connected to the strings 10, the output to one of the inputs of the block 12, one from the inputs of the time delayed block 14 connected to the output, the other input to one of the outputs of the block 15 for determining the coordinates of the last train car, the other output of which is connected to the input of block 14, and the third output of block 15 to the second input of block 13. The block input 15 is connected to the output of the receiver 16 koo ordinates of the last car of the train, the input associated with the roadway loop 17.

The device works as follows.

When a train moves in a traveling train 17, electromotive force (EMF) is induced due to interaction with coil 6, powered by transmitter 5, which is activated when receiver 3 triggers, which controls coils 4 with a signal in threads 8 that are activated by transmitter 7. The wires of the loop 17 intersect with a variable pitch corresponding to the length of the coordinates. The lengths of the coordinates are chosen so that the travel time on them when the train is moving along the program is the same. At the time of passage of the transmitting coil 6 over the cross of the two-wire line, the receiver 16 detects the phase change of the signal from the traveling loop. The receiver 16 generates pulses, the duration of which is equal to the actual time of passage through the coordinates, and transmits them to the unit 15 for determining the coordinates.

By counting the number of coordinates traveled, the current position of the tail car is determined. The control of non-violation by the departing train of the driving mode is carried out in block 12 of the program for monitoring the approach of trains and consists in comparing the durations of the actual train’s travels along the coordinates coming from unit 15 with the reference running time pulses generated by the time delayed unit 14 15. The program mode of the departure train is considered completed if the actual travel time is less than or equal to the reference one.

When a suitable train appears on rail tracks x 10 near the station, the signal comparison unit receives a signal about the appearance of a suitable train. This signal is compared in block 13 with the signal from the coordinate determination unit 15 when the first coordinate is counted.

If the signal from block 15 arrives earlier than the signal of the appearance of a suitable train, the signal comparison block 13 generates a signal for block 12 of the train approach control program. Block 12, when a signal arrives from block 13 and does not disturb the programmed mode of motion by the departing train, through block 11, it gives a signal to the transmitter 9 signals of automatic locomotive signaling to encode rail lines 10 with a frequency that allows movement at a speed not exceeding the calculated one chosen from the conditions of maximum approach of trains adjustment to the aiming braking point of the departing train.

The receiver 1, when receiving a signal from the rail yarns 10 through the receiving coils 2, limits the speed of the suitable train to the top at a constant speed. The switching unit 11 in this case does not interfere with the operation of the device and passes the enable signal from the unit 12 to the generator 9.

In case of an unintended decrease in the minimum possible inter-train interval, a signal about the appearance of a suitable train from rail lines 10 to block 13 will arrive earlier than from block 15. In this case, comparison block 13 generates a start signal of the error time and transmits it to switching unit 11. When block 11 arrives from block 13, block 11 starts counting the discrepancy time and bans the passage of the resolution signal from block 12 to generator 9. The locomotive signaling generator 9 encodes rail threads 10 with a frequency that receiver 1 perceives as a speed limit of the minimum speed, V the moment of arrival of the signal from block 15 to block 13 for comparing signals, the next transmitted signal is to block 12, which generates a resolution signal when the programmed motion mode does not violate the ear by train At the time the signal from block 15 arrives at block 13, the latter also generates a discrepancy time countdown signal and transmits it to block 11. Block 11 from the moment this signal is received stops counting the discrepancy time and, based on it, an additional time is denied from passing the resolution signal from the block 12 to generator 9, which appears if the departure mode is not disturbed by the departing train. At the end of the countdown

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The individual time of prohibition to allow the passage of the permission signal from block 12 to generator 9, block 11 slows down the enable signal from block 12 of the program for the approach of trains to generator 9, allowing the generator 9 to encode rail threads 10 at a frequency that allows movement at a speed not exceeding the calculated one. The receiver 1, when receiving a signal from the rail yarns 10 through the receiving coils 2, performs fencing of the speed mode of a suitable train from above at a constant speed.

Claims (1)

The invention The device for interval control of train movement by bus. St. 1220999, characterized in that, in order to increase reliability, it is equipped with a controllable switching unit connected between the train approach control unit and the automatic locomotive signal generator and the control input connected to the output of the signal comparison unit.