SU695878A1 - Train traffic control apparatus - Google Patents

Description

The invention relates to the field of transport and is designed to work in railway carriage systems, providing interval train movement and higher line capacity. A device for controlling the movement of trains, containing transmitters, is known. the automatic locomotive signaling system (ALS), the control inputs of each of which are connected to the control unit and to the corresponding block of units of the block section, as well as transmitters and receivers of rail circuits, and on the locomotive - a receiver connected by its input to the locomotive coils, switching unit, logical processing unit connected to the signal unit, the outputs of which are connected to the inputs of the executive unit, the state control unit, the blocking unit and the sensitivity tuning unit, the output of which connected to the sensitivity tuning input of receiver 1. A disadvantage of the known devices is the insufficient provision of shunt and control mode for the locomotive receiver and the low traffic safety of the train. The purpose of the present invention is to improve traffic safety of trains. The goal is achieved by the fact that the device is equipped with blocks for distinguishing even and odd block sections installed on the locomotive, the inputs of which are connected to the receiver output, and the outputs to the switching unit, the health monitoring unit and the blocking unit, the output of which is connected to the input of the switching unit . The drawing shows a diagram of the proposed device. The device contains transmitters 1-5 rail circuits 6-10, separated by insulating joints 11-16. Rail receivers 17-21 and automatic locomotive signaling transmitters (ALS) 22-26 are connected to the rail circuits. Each transmitter of the ALS is controlled by a control input with the control unit 27. The transmitters of the odd and even block ALS are connected to the output of the odd-forming feature unit 28 and the even-unit block 29. On the locomotive 30, the receiving coils 31 are connected to the receiver-32, the outputs of which are connected to the allocation blocks of the sign of an odd 33 and even 34 block segments. The outputs of the blocks 33 and 34 are connected to the switching unit 35, the health monitoring unit 36 and the exception block 37. The output of the switching unit 35 is connected to the processing logic unit 38, which is connected to the signal unit 39, which is connected by its outputs to the execution unit 40 and to the unit nast: ROIKI sensitivity 41. The output of the sensitivity tuning block 41 is connected to the sensitivity tuning input of the receiver 32.

- This proposal considers the operation of ALS devices as applied to the interval regulation system by rail circuits with insulating junctions without passing signals with centrifuged equipment placement: transmitters 1-5, rail receivers 17-21, ALS transmitters and a control unit 27 implementing logical the control functions of the ALS transmitters using the information about the state of the rail circuits received from the receivers of the rail circuits, as well as blocks 28 and 29 of the formation of the characteristic odd and even block: s. At the same time, the block 28 of forming the sign of an odd block section is connected to the inputs of the transmitters ALS 22, 24Л / 26 (conventionally, the rail circuits b, 8, and 10 are rail circuits of odd block portions), and the sign of the even block is connected to the inputs of the perdors; ALS 23 and 25 (we assume that the track circuits 7 and 9 are even), the operation of the device is as follows.

Receivers 17-21 of track circuits provide control of block sections, Track receivers 17-21 act on control unit 27, which, depending on train situation, generates ALS commands supplied to rail circuits by ALS 22-26 transmitters. , ITO to the inputs of the ALS rail track transmitters 6.8 and 10 odd areas is affected by the signal from the odd-block sign formation unit 28, and the inputs from the ALS transmitters to the 7 and 9 even rail block blocks are affected by the signal from the character forming unit 2

the same block indication, the same signal indications in the track circuits of the adjacent block sections are encoded by different code combinations. As a sign of an even and odd block, when numerical coding, for example, various temporal parameters of code pulses can be used, or ALS signals can be sent to adjacent track circuits on alternating non-leading frequencies R. and Fj. At the same time, the signal information itself can be encoded with a numeric, frequency, time code, or any other code. Giving an ALS signal a sign of an even or odd block section allows for shuntoboi and control mode on a locomotive receiver. The execution of the shunt regime excludes the possibility of receiving a signal behind the train that is going to run in front of the train traveling along a given track circuit and having a bad shunt (shunt close to the normative one).

The execution of the control mode 1 excludes the possibility of receiving the code signal on the locomotive when the rail is broken ahead in the direction of travel.

Without solving the tasks of performing a shunt and control mode on a locomotive receiver, the ALS system cannot be used as the main system of interval regulation.

This device meets the requirements of traffic safety due to the fact that ALS signals are applied to track circuits, on which a sign of odd (conditionally referred to as sign 1) or even (conditionally referred to as sign 2) of the block is superimposed. When a red-yellow fire with sign 1 (2) is received on the locomotive, i.e., when the locomotive approaches the occupied block or the block with damaged rail and, therefore, there is a potential danger of violation of shunt or control modes At the locomotive receiver 32, the proposed automation device on the locomotive excludes the possibility of: receiving any code signals with feature 2 (1). Reception of any information with feature 1 (2) is permitted. At the same time, a red fire lights up on the locomotive, after which the locomotive receiver 32 is tuned to a lower sensitivity on the locomotive.

Switching the receiver to the calculated sensitivity is provided by a high signal level in the rails, which is possible only when the locomotive approaches the output end and with a free and intact rail circuit. The described algorithm for operating locomotive devices is realized only when the train approaches the obstacle, i.e., when a red-yellow fire code is received on the locomotive and gave the lowest ignition on the red fire locomotive. In the case of permitting lights on the locomotive (green, Moreover, etc.) the operation of the ALS is carried out in the usual manner. The implementation of the algorithm described above is provided by locomotive devices. The code signals are perceived by the receiving coils 31 and fed to the receivers 32, which is an amplifier with selective properties in frequency and amplitude, adjustable by the input of the sensitivity tuning of the response threshold. At the output of receiver 32, blocks 33 and 34 for selecting an attribute of an odd and even block sections are included. When the locomotive is located at an odd-block part, the code signal is made at the output of block 33, and when the locomotive is located at an even-numbered part at the output of block 34. Next, the signal through the switching unit 35 is sent to the logic processing block 38, which separates the signal information and then it acts on the signal unit 39, which is the switching circuit of the signal relays and the matching circuit. The output of the signal block 39 acts on the executive unit 40 — a locomotive traffic light and brake control circuits. When a locomotive comes to an obstacle and a red-yellow fire is ignited on the locomotive, which is determined by the signal block 39 in accordance with the algorithm described above, the elimination block 37 under the influence of information from the signal block 39 and blocks 33 and the sign of the odd and even block -sites generates a command to exclude the possibility of receiving signal information with a prize of 1 (2) and at the same time the red-yellow light code is perceived, due to the influence of the exclusion unit 37 on the switching unit 35, the possibility of connection is prevented When receiving the signal information with sign 2 (1), the unit 32 of the logical processing unit 38 is solved. To eliminate the dangerous situation when the locomotive enters a busy or damaged rail circuit, if at this time a more resolving signal indication comes with sign 1 ( 2) then it is perceived by the corresponding blocks and decrypted. When a train enters a occupied block section or a block with a damaged rail (after receiving the red-yellow light code), a red light will be turned on at the locomotive traffic light. This will happen even if the receiver 32 senses signals sufficient to trigger the level, since the exception block 37, acting on the switching block 35, prohibits decoding of the code signals with the indication of this block section. The fire at the locomotive red light is detected by the sensitivity tuning unit 41. In this case, block 41, acting on the sensitivity tuning input of the receiver 32, ensures that the receiver 32 is set to low sensitivity (the threshold increases). After that, reception of signal information with a sign of both even and odd block sections becomes possible when there is a high level signal in the rail line, which is guaranteed only if the rail line section is free and healthy between the locomotive location point and the ALS transmitter. Form; / la invention A device for controlling the movement of trains, containing on its way the transmitters of automatic locomotive signaling, the control inputs of each of which are connected to the control unit and to the corresponding block forming unit, as well as transmitters and primitives. rail circuits and, on the locomotive, a receiver connected by its input to locomotive coils, a switching unit, a logic processing unit connected to a signal unit, the outputs of which are connected to the inputs of the execution unit, the health monitoring unit, the node, the lock and the sensitivity tuning unit, the output which is connected to the receiver sensitivity tuning input, which is so / that, in order to increase the train traffic safety, it is equipped with installed recognition blocks on the locomotive Cove even and odd block section, inputs of which are connected to the receiver output, and outputs - to the switching unit, a control unit and serviceability of the lock assembly, whose output is connected to the input of the switching unit. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 519352, cl. In 61 L 3/20, 1974.