Safety protection method of CBTC (Communication Based Train Control) system during crossing control area

Abstract

The invention provides a safety protection method of a CBTC system during crossing a control area, which comprises the steps: S1: when the train enters the boundary areas of a first and a second ground ATP systems, the first and the second ground ATP systems mutually transmit the information of access roads R1 and R2 of respective control areas; S2: the first ATP calculates first moving authorization information according to the information of the access roads R1 and R2 and transmits the information to a vehicle-mounted ATP; S3: when the train passes through the boundary point of the boundary area and enters the control area of the second ATP, the vehicle-mounted ATP transmits chain-scission request information to the first ground ATP system and transmits chain-building request information to the second ground ATP system; and S4: the second ground ATP system responses the chain-building request information, calculates second moving authorization information according to the information of the access road R2 and transmits the second moving authorization information to the vehicle-mounted ATP. The invention can ensure that the arrangement of the access road R2 in the boundary point can not be limited; the vehicle-missing phenomenon can not appear when the train breaks down in OB zones; and the cost of the system can be simultaneously reduced.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a safety protection method for trains crossing the boundary of a control area in a CBTC system. Background technique [0002] The urban rail transit train operation control system is a key system to realize traffic command and train operation automation and improve transportation efficiency. In recent years, with the advancement of technology, the system is gradually developing towards a communication based train control (CBTC) system. In the CBTC system, the train crossing the border of the control area is a key safety link for train control. Once a loophole occurs in the control strategy, it will affect the train operation of the entire line and even cause a safety accident. At present, for the processing of this link, CBTC system equipment providers generally adopt such figure 1 The method shown: the route R1 needs to extend a distance OB at the boundary point O, t...

AI Technical Summary

Problems solved by technology

[0004] 1. The setting of the route R2 at the boundary point is limited: it must extend a certain distance to the right at the boundary point; without this distance, it cannot be guaranteed that the train will have enough time to establish a link with the ground ATP2 system; this makes the system There are specific requirements for on-site line conditions, which is not conduciv

Images