RU2583988C1 - Device for automatic traffic control - Google Patents

Abstract

FIELD: telemechanics.

SUBSTANCE: invention relates to automation and telemechanics. Device for automatic train separation contains sensors of presence of rolling stock on sections of span, connected to unit for generating command and control signals, which is connected with stationary radio units, connected with locomotive radio units. Device includes module for converting optical signal into digital signals and logical unit for determining state of sensors of presence of rolling stock on sections of span. As above sensors fibre-optic cable laid along span is used. Cable through optical signal conversion module into digital signals is connected to unit for determining state of sensors of presence of rolling stock, which is connected to unit for generating command and control signals.

EFFECT: increased throughput capacity.

1 cl, 1 dwg

Description

The invention relates to the field of railway automation and telemechanics and can be used in interval control systems for the movement of trains for the logical control of the progress of a train haul.

A device is known for automatic interval control of train movement (a system of interval regulation of train movement ABTC), containing receivers of sections of the track, the inputs of which are connected to the rail line, and their outputs are connected to the inputs of the blocks of closing and opening block sections and with the inputs of the blocks for releasing and occupying sections the way. The outputs of the blocks of the circuit and opening of the block sections are connected with the inputs of the control units of the lights of the traffic lights. The outputs of the blocks of release and occupation of sections of the path are connected to the inputs of the control units of codes of automatic locomotive signaling (V.Yu. Vinogradova and others. "Distillation systems of automation". M: Route, 2005, p. 92-93).

The disadvantages of the known device are:

- the listed functional blocks in it are made on a relay element base and have complex circuit dependencies that make troubleshooting difficult;

- the control logic of the train following the stage, based on the identification of successive occupation and the release of sections of the track, uses two standard values of the state of the section of the track (by the level of the control signal at the output of the receiver of the section of the track) - free, busy.

This reflects the reduced efficiency of the device in the event of malfunctions that cause “false” occupancy of the track section and, as a result, a delay in the movement of trains due to signaling information prohibiting them.

The closest analogue to the claimed invention in terms of essential features and functionality is a device for automatic interval control of train traffic, containing sensors for the presence of rolling stock in sections of the train, connected to the control and signal generation unit (control unit BU), which is connected to stationary radio devices associated with locomotive radio devices.

(Magazine "Automation, Communication, Informatics" No. 2, 2006, p. 18)

A disadvantage of the known device are:

- the presence of a large amount of equipment of the track section, the technical maintenance and repair of which requires significant material costs;

- the logic of the control of the train following the section of the haul is based on the identification of two values of the state of the haul - free, busy. This reflects the reduced efficiency of the device in the case of the organization of mobile block sections between trains, when data is needed on the location of the head and tail cars of the train.

The technical result of the invention is the creation of a device for automatic interval regulation of train traffic by introducing virtual sections of the track based on fiber-optic cable and control algorithms for the progress of trains on the stage.

The technical result of the invention is achieved by the fact that in the device for automatic interval regulation of train traffic, containing sensors for the presence of rolling stock in sections of the train connected to the unit for generating control and control signals, which is connected to stationary radio devices associated with locomotive radio devices, according to the invention, a module is introduced converting an optical signal into digital signals and a logical determination unit for the presence sensors rolling stock in the sections of the section, and as sensors for the presence of rolling stock in the sections of the section, a fiber-optic cable was laid along the section of the section, which is connected through the module for converting the optical signal to digital signals with the unit for the logical determination of the status of sensors for the presence of rolling stock in sections of the section, the output / input of which is connected to the block for the formation of control and control signals.

The drawing shows a block diagram of a device for automatic interval regulation of train traffic.

The device for automatic interval control of train movements contains sensors 1 of the presence of rolling stock in the sections of the haul, connected with the block 2 for the formation of control and control signals, which is connected to stationary radio devices 3 connected with locomotive radio devices 4. A module 5 for converting the optical signal into digital is introduced signals and block 6 for the logical determination of the state of sensors 1 of the presence of rolling stock in sections of the stage. As sensors 1 for the presence of rolling stock in the sections of the stage, a fiber-optic cable was used along the route 7 of the section, which is connected through the module 5 for converting the optical signal to digital signals with the unit 6 for the logical determination of the status of sensors 1 for the presence of rolling stock in sections of the section, output / the input of which is connected to the block 2 of the formation of control and control signals.

The functional blocks of the device are microprocessor based.

A device for automatic interval regulation of train traffic works as follows.

If the route 7 is free and the train follows along it, the optical signal to digital signal converting module 5 evaluates the reflected light wave coming from the optical fiber of the optical fiber cable due to the input of short optical pulses from the input / output of module 5 into the mentioned fiber at a given frequency .

At the other input / output of module 5, current information is generated about the virtual sections of the path (fiber-optic cable) according to two values of their state - free, busy, which goes to one input / output of block 6 for the logical determination of the state of sensors 1 for the presence of rolling stock in sections .

Block 6 of the logical determination of the state of the sensors 1 the presence of rolling stock in the sections of the train are processed for fixing in real time both when the train is free of train traffic and when it is occupied, the following conditions of the virtual track section:

C is free;

Z - busy;

ZG - busy with the head of the train;

ZX - busy with the tail of the train.

With the free path 7 of the haul and the working condition of the hardware of the virtual sections of the track, the distribution signal of the reflected light wave is within the values required to fix the freeness of the virtual sections of the track.

Information about the freedom of virtual sections of the path from another input-output of module 5 is fed to one input / output of block 4, which determines the status of one of the above states of the virtual sections of the path in accordance with the following algorithm:

- the first step is to fix the state of each (i) section of the track (with free driving, the state of each section of the track is C);

- the second step is fixing the state of the previous (i-1) in the accepted direction of movement of the path relative to the test section (the state is also C);

- the third step is fixing the state of the next (i + 1) in the accepted direction of movement of the path section relative to the test section (state also - C).

As a result of comparing the values of the eigenstate of a separate section of the track and the state of adjacent sections of the track, the control signal generation block 2 generates an identification signal “C” (free) for each section of the haul track. The identifier “C” is assigned to the last section of the haul route based on the information signal about its vacancy.

Information on the state “C” of all virtual sections of the track by block 6 is generated in the absence of identification of the false vacancy of the virtual sections of the track, the absence of identification of abnormal proximity of trains and the absence of identification of the location of the head of the train when occupying virtual sections of the track.

In train situations for virtual sections of the track in case of a working condition of the hardware of the virtual sections of the track, block 6 can generate the following identifiers:

Z - busy;

ZG - busy with the head of the train;

ZH - busy with the tail of the train;

C is free.

The identifiers З and ЗГ are assigned to the virtual part of the track provided that the information signal from module 5 about its employment and the previous one's direction of movement of the virtual part of the track coincides in time. Assigning a virtual segment of a path to a 3G identifier leads to the loss of the previous virtual section of a path in the direction of movement of the identifier 3G.

The first virtual section of the haul route includes identifiers 3 and 3 by the information signal about employment.

The identifiers Z and ZX are assigned to the virtual section of the path provided that the information signal from module 5 about its employment, the next one’s occupancy and the freedom of the previous one in the direction of the virtual section of the path coincides in time.

From locomotive radio devices 4 to stationary devices 3 information is transmitted on the location of the train, formed on the basis of information from the satellite navigation system. The information about the location of the train transmitted from the stationary radio devices 3 to another input / output of the block 2 for the formation of control and control signals is compared by block 2 with the same information from block 6 to form the exact location of the train.

Using information about the location of the train, block 2 generates a message about the train situation on the stage (control commands for movement) and transmits from another input / output to stationary radio devices 3 for transmission via radio channel to locomotive radio devices 4, by which the on-board devices of the train are transferred to the safety state .

Thus, by implementing logical control of the states of virtual sections of the track, it is possible to increase the efficiency of the device when organizing moving block sections.

The effectiveness of the device for automatic interval regulation of train movement consists in creating a virtual section of the track, allowing the formation of moving block sections on the stage, and algorithms for monitoring the sequence of trains on the stage to increase the throughput of the railway.

Claims (1)

A device for automatic interval control of train movement, containing sensors for the presence of rolling stock in the sections of the haul, associated with the unit for generating control and control signals, which is connected to stationary radio devices associated with locomotive radio devices, characterized in that a module for converting the optical signal into digital signals and a unit for the logical determination of the status of sensors for the presence of rolling stock in sections of the stage, and as sensors Using the rolling stock in the sections of the stage, a fiber-optic cable was laid along the route of the route, which is connected through a module for converting the optical signal to digital signals with a unit for logically determining the status of sensors for the presence of rolling stock in sections of the stage, the output / input of which is connected to the control unit control signals.

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