SU918154A1 - Underground electric railway train traffic control apparatus - Google Patents

Description

one

The invention is intended for automatic control of train movement in accordance with a predetermined schedule on metro lines equipped with automatic locomotive signaling with centralized placement of equipment.

A device for controlling the movement of metro trains is known, comprising a train of frequency signals located on a train connected to an input of a command decoder connected by its output to one input of a speed comparison unit, another input of which is connected to the output of the actual speed measurement unit, and the output with one input of the braking power-up unit, the receiver being inductively coupled with the rails, to which sensors for tracking the control points of the track and outputs — the generation — are connected at the interlocking post. signal frequency tori 1.

A disadvantage of the known device is large deviations from a given train schedule.

The aim of the invention is to expand the functionality of the device.

The goal is achieved by the fact that the device is equipped with a train-engaging unit mounted on the train, one input of which is connected to the output of the speed comparison unit, the second input is connected to the output of the executive unit, and the output is connected to the second output of the command decoder and the second input of the executive unit connected the third input with the third output of the command decoder, installed on the centralization post by the program block and the unit for determining the time of the switched on state of the motors and the counter of track circuits, which is connected chen input to the outputs of the sensors prosledovani checkpoint path, and output - to the input program block, whose output is connected to an input time detecting unit on state engines coupled by its appearance to the input of the signal generator frequency. The block diagram of the proposed device shown in the drawing. The device consists of track circuits 1, sensors 2 connected with them, track point control points, as well as located at the centralization station of the counter 3 track circuits, to which a program block C connected to block 5 is connected. the state of the motors to which the generators of the 6 signal frequencies are connected. The train is equipped with a receiver of 7 signal frequencies, connected to the decoder of commands 8, the actual speed measurement unit 9 connected to the speed comparison unit 10, the traction engine start unit 11 and the executive unit 12 The device operates as follows. When the train travels along the stage from station A to station B above sensor 2, the sequence of the control point, which is, in particular, an insulating junction between the rail circuits 1, current impulse 3 enters. Depending on the number of pulses received by the counter 3 from sensors 2 and the movement schedule operating on a given span, program block k transmits to block 5 the determination of the time of the on state of the engines the programmed dependence of the train motion in the front block section in the form: 4u.n - (joT ..,. j) where, -the time of the on state of the motors for nm n is the number of the block section (control point); . the deviation of the train from the schedule in the nth control current v is the average speed of the train on the (n-1) block block. On the basis of the data received from block k, block 5 determines the time of the on state of the motors in the n and block sections and transmits this command to the generator 6 of signal frequencies. After the required turn-on time has expired, unit 5 generates a command to shut down the pull, which also enters generator 6. In both cases, generator 6 powers the track circuits 1 with currents of various frequencies encoding respectively the on and off command of the traction motors. These commands are received by the inductive link into the frequency signal receiver 7, from where 8 commands are transmitted to the decoder. The latter issues a command to turn on the gi to its second output, and a command to turn off the gi to the third output. Both of these commands go respectively to the second and third inputs of the executive unit 12, which implements them through the train control circuits. In addition to the above commands, the rail circuit 1 from generator 6 is constant; frequencies encoding information 01 of permissible driving speeds are transmitted, as provided for in the automatic locomotive signaling system (ALS). This information through the receiver 7 frequency signals and the decoder 8 commands arrives at the first input of the speed comparison unit 10, the second input of which from the output of the actual speed measurement unit 9 receives information about the actual speed of the train. If the actual train speed exceeds the allowable one, the speed comparison unit 10 first transmits to the first input of the execution unit 12 a command to turn off the traction motors, and then, if the speed does not become less than the permissible, the command to turn on the train’s brake means. The last command operates all the time while the actual speed is greater than the permissible one and simultaneously arrives at the first input of the block 11 for switching on the traction motors. As soon as the actual train speed becomes less than permissible, the speed comparison unit 10 ceases to form a braking command. In response to this, the block 11 of the traction motors generates a command to turn off the braking mode and after it the command to turn on the traction motors, which is supplied, to the second input of the operating unit 12. The traction motors will be turned on until a command will come on their shutdowns either from the output of block 10 or from the third output of the decoder 8 commands The command to turn off the traction motors, transmitted from the third output of the decoder 8 commands, blocks the command to turn on the traction motors, resulting from a braking command coming from the output of block 10. In all cases when the executive unit 12 implements the command to turn off the traction motors, it causes the control unit 11 to control the rest to its initial state, i.e. the oTcytct state is given to the transmission of the traction motors command. In this way, the time of the train and its speed is adjusted throughout the entire span. When the train enters the station, it is braked according to a preset program. ,; Using the proposed ycTt solver will allow you to increase the performance of the traffic of train traffic while simultaneously improving the use of the throughput capacity of the hauls in cases of elephant trains from the traffic schedule.

Claims (1)

1. Shishlkov V.A. Improving the efficiency of interval control devices on trains on Sat. Problems of metro development. Proceedings of the Central Research Institute, vol. 598, M., 1978, p. 8793. its output with one input of the speed comparison unit, the other input of which is connected to the output of the actual speed measurement unit, and the output with one input of the braking control unit, the receiver being inductively connected to the rails to which, at the centralization post, track control points and outputs are connected to the inputs generators with signal frequencies, distinguishing it with the fact that, in order to expand its functionality, it is equipped with a train switching unit mounted on the train, one input connected to the output of the speed comparison unit, the second input is connected to the output of the execution unit, and the output is connected to the second output of the command decoder and the second input of the execution unit connected by the third input to the third output of the command decoder software installed on the centralization post ( the time of the on state of the motors and the counter of rail targets, which is connected to the outputs of the sensors following the track control points, and the output to the input of the program block whose output is connected n to determine the block time entry on state engines, its output connected to the input of the signal generator frequency.