城市轨道交通信号系统点式后备模式设计简析

Brief Introduction to Intermittent Fallback Mode of Signaling System for Urban Rail Transit

在城市轨道交通信号系统建设中,一般都配置点式后备模式.在信号系统CBTC模式故障的情况下,例如轨旁无线通信故障,系统可以降级到点式后备模式继续运行.应答器有美式信标和欧式应答器两种,本文重点介绍欧式应答器和美式信标在点式后备模式下的设计及其区别.

Intermittent fallback mode is generally configured in the signaling system for urban rail transit.When the CBTC mode of the signaling system fails,such as failure of trackside wireless communication,the system can be degraded to the intermittent fallback mode to keep in operation.There are two types of transponder,American tags and European balise.And the designs of intermittent fallback mode with the two types of transponder and their differences are introduced.