Overlap triggering method used in urban rail traffic system based on destination

Abstract

The invention relates to an overlap triggering method used in an urban rail traffic system based on a destination. The overlap triggering method comprises the following steps of (1) performing system initialization; (2) judging whether a train enters an overlap trigger section or not; (3) judging whether a main access is established or not; (4) judging whether an overlap is established or not; (5) sending an overlap locking request to a train monitoring system ATS through a CI; (6) searching destination information after the ATS receives the request, calculating the overlap locking direction and replying the overlap locking direction to the CI if the destination information exists; (7) judging whether the CI receives the overlap locking information, if so, executing the step (10), and if not, executing the step (8); (8) judging whether preset time t of a timer is up, if so, executing the step (9), and if not, executing the step (5); (9) establishing a default overlap through the CI; and (10) establishing the overlap through the CI according to the destination. Compared with the prior art, the overlap triggering method has the advantages of enabling the train not to wait the overlap unlocking time, effectively improving the operation efficiency and the like.

Description

Technical field [0001] The present invention relates to the field of urban rail transit systems, and in particular to a destination-based method for triggering a continuous protection approach in an urban rail transit system. Background technique [0002] In the urban rail transit signal system, due to civil construction and track conditions, in order for the train to stop as close to the restricted point as possible, while ensuring safety, it is necessary to set up a continuous protective approach (hereinafter referred to as overlap) downstream of the restricted point to transfer the restricted point To the end of the protective approach, thereby increasing the availability of the system. [0003] In the existing signal system, the interlocking system (hereinafter referred to as CI) usually has a default position for continuing the protection approach. When the train is pressed into the designated area, CI automatically triggers the continued protection route to the default posit...

AI Technical Summary

Problems solved by technology

In the case of tight tracking, the original continuation protection approach processing mechanism is difficult to ensure the realization of operational efficiency, for example figure 1 As shown at the small crossing point, the train must wait for the unlocking of the continuation protection route on the platform before it can handle the return route and turn on the return signal; due to the existence of the unlocking time of the continuation protection route, the efficiency is reduced

Especially for non-communication trains, since the CI cannot receive the train stop information, the unlocking time is very long, which seriously affects the efficiency of backup operations

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