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Automatic train protection method in distance-to-go mode

A target distance and train technology, which is applied in the field of automatic train protection in target distance mode, can solve the problems of low flexibility and achieve the effects of high flexibility, dynamic protection and high reliability

Active Publication Date: 2014-04-02
BEIJING DACHENG COMM SIGNAL RAILWAY TRANSIT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a method for automatic protection of trains in target distance mode to solve the problem of low flexibility of the above-mentioned existing control methods through track circuits

Method used

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  • Automatic train protection method in distance-to-go mode
  • Automatic train protection method in distance-to-go mode
  • Automatic train protection method in distance-to-go mode

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Embodiment Construction

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. For an embodiment of the invention see figure 1 , including the following steps:

[0034] S11: Analyzing the carrier frequency and code frequency from the received velocity step orbit code;

[0035] S12: Determine the position of the current train according to the carrier frequency, and determine that the track section at this position corresponds to a plurality of code sequences;

[0036] S13: Among the multiple code sequences, determine a code sequence corresponding to the current position of the train and the code frequency according to the received code frequency, and determine the corresponding target distance track code according to the code sequence;

[0037] S14: Analyze the track code, and determine the corresponding number of free track segments;

[0038] S15: According to the current position, the number of idle track sec...

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Abstract

The invention provides an automatic train protection method in a distance-to-go mode. The method comprises analyzing carrier frequencies and code frequencies from received speed step track codes; determining the current position of the train according to the carrier frequencies and a plurality of corresponding code sequences of track segments of the position; determining a code sequence corresponding to the code frequencies according to the code frequencies received by the train at the current position in the plurality of code sequences, and determining corresponding track codes according to the code sequences; analyzing the track codes, and determining the corresponding unoccupied track segment number; obtaining train running permission authorization, that is, the protection distance to go, according to the current position, the unoccupied track segment number and the front path, and calculating a protection curve according to the line condition, wherein the protection train travels at the speed of the protection curve. Compared with traveling according to the speed of speed step track codes, the method has the advantages of being in flexibility and the reliability.

Description

technical field [0001] The invention relates to the field of rail transit communication signals, in particular to an automatic train protection method in a target distance mode. Background technique [0002] In the urban rail transit system, according to the blocking mode, the automatic train protection is divided into three types: fixed blocking, quasi-moving blocking, and moving blocking. [0003] (1) Fixed block The line is divided into fixed sections, the position and distance of the front and rear trains are detected and indicated by the ground equipment, and the speed control mode is hierarchical control (step type). It is realized by track circuit. [0004] (2) Quasi-moving block (also known as target distance mode DTG) is to pre-set the safe tracking interval distance of the train, and set the driving distance of the train according to the state of the target ahead, such as a curve, that is, the operating authority, and calculate accordingly The maximum safe speed ...

Claims

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Application Information

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IPC IPC(8): B61L23/34B61L23/04B61L25/02
Inventor 马建中洪刚许镕淏周海余王巍倪恒江刘玉霞孙红涛
Owner BEIJING DACHENG COMM SIGNAL RAILWAY TRANSIT EQUIP
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