Backup point-level temporary speed limitation method and backup point-level temporary speed limitation system in CBTC (Communication based train control) system

Abstract

The invention provides a backup point-level temporary speed limitation method and a backup point-level temporary speed limitation system in a CBTC system. The method comprises the following steps: a zone controller ZC receives temporary speed limitation information transmitted by a terminal server ATS; the zone controller ZC sends a temporary speed limitation value corresponding to a temporary speed limitation range to interlocking equipment CI in the temporary speed limitation range; the interlocking equipment CI sends the temporary speed limitation value to a transponder by circuit side electronic equipment LEU so that the transponder sends the temporary speed limitation value to vehicle-mounted signal equipment to control the running speed of a train when the train passes the transponder. According to the method, the temporary speed limitation value can be sent to the interlocking equipment CI according to the temporary speed limitation information transmitted by the terminal server ATS, and subsequently the interlocking equipment CI sends the temporary speed limitation value to the transponder by the circuit side electronic equipment LEU; therefore, the workload of operation is not increased; besides, the temporary speed limitation operation needs no manual intervention; manual driving or automatic driving can be adopted, so the driving safety is guaranteed, and the running efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit signal control, in particular to a temporary speed limit method and system at a backup point level in a CBTC system. Background technique [0002] The communication-based train control system (communication-based train control system, referred to as CBTC), uses the 802.11 standard communication transmission means, through the real-time, large-capacity two-way data communication between train-ground equipment, completes the exchange of train control information, and realizes the safety control of train operation , has been widely used at home and abroad. [0003] The on-board ATP subsystem in the CBTC system continuously monitors the line speed limit, vehicle speed limit, driving mode speed limit, temporary speed limit, etc., to ensure that the train speed does not exceed the allowable speed specified by the line, turnout, vehicles, etc., and prevent the train from overspeeding run. Under th...

AI Technical Summary

Problems solved by technology

For the above scheme, the temporary speed limit of ATO is disabled, and the system cannot realize the protection of the specific temporary speed limit, and the protection of the temporary speed limit is completely manually guaranteed by the driver; the temporary speed limit scheme of the open guidance signal, every time a point train passes Operators are required to guide the route, which takes up a lot of manpower. At the same time, under the guidance signal, the train runs at a low speed, which greatly interferes with the operation capacity of the line.

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