Method for setting temporary speed restriction for train in degraded mode

Abstract

The invention relates to a method for setting temporary speed restriction for a train in a degraded mode. The method includes the following steps that an interlock system acquires temporary speed restriction information of an ATS; the interlock system acquires temporary speed restriction information in an interlock upper computer; the temporary speed restriction information in the interlock system is processed; the interlock system transmits the temporary speed restriction information to an encoder to be encoded; the encoded temporary speed restriction information is transmitted to a trackside speed restriction beacon by the encoder; a beacon antenna of the train acquires front speed restriction information when passing through the speed restriction beacon, and the speed of the train can be adjusted according to the front speed restriction condition; whether the temporary speed restriction information transmitted by a DCS is received or not is judged by the train, if yes, the train shields the temporary speed restriction information from the speed restriction beacon, and the temporary speed restriction information transmitted by the DCS is used as the reference; if not, the temporary speed restriction information from the speed restriction beacon is used by the train. Compared with the prior art, the method for setting temporary speed restriction for the train in the degraded mode has the advantages of improving traffic safety, efficiency and the like.

Description

technical field [0001] The invention relates to the field of urban rail transit, in particular to a method for setting a temporary speed limit for trains in degraded mode. Background technique [0002] In the operation of urban rail transit, it is often necessary to impose a time-sensitive speed limit on a section of the line that is lower than the allowable speed, mainly including planned speed limits caused by on-site construction operations and sudden speed limits caused by natural disasters and equipment failures; temporary Multiple speed limit areas can be set, and have fixed start and end points and speed limit values. [0003] At present, in the urban rail transit signal system, only under the communication-based train control mode (hereinafter referred to as CBTC), the automatic train monitoring system (hereinafter referred to as ATS) can realize the temporary speed limit management of the train; Temporary speed limit, the temporary speed limit information is transm...

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Problems solved by technology

[0004] In other degraded modes, because real-time two-way communication is not possible, it is impossible to implement real-time temporary speed limits on trains. At present, the way to set temporary speed limits in degraded modes is to open the guidance signal or force trains to use the speed limit mode (hereinafter referred to as RM mode) Operation; no matter which method is used, the speed limit value is fixed and cannot be adjusted, and the speed limit information cannot be updated in real time, which affects the driving efficiency; and both methods require too many indirect operations by the on-duty staff, and human errors cannot be avoided Lead to the occurrence of safety accidents, but also increase the work pressure of the on-duty staff and drivers

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