上海轨道交通信号系统演进方案研究  

Research on Shanghai Rail Transit Signaling System Evolution Scheme

作　　者：王历珘 WANG Lizhou(Telecom&Signal Branch,Shanghai Metro Maintenance Support Co.,Ltd.,200235,Shanghai,China)

机构地区：[1]上海地铁维护保障有限公司通号分公司,上海200235

出　　处：《城市轨道交通研究》2024年第11期1-4,共4页Urban Mass Transit

摘　　要：[目的]随着城市轨道交通高速发展,列车的运营量大幅增加,现有的CBTC(基于通信的列车自动控制)系统已无法满足高密度运营的信号系统需求,有必要对城市轨道交通信号系统演进方案进行研究。[方法]提出一种城市轨道交通信号系统演进方案,使得信号系统在出现单发故障时,由上-下后备降级运行模式向左-右互备冗余模式转变。首先,合并ZC(区域控制器)与CI(计算机连锁)系统,从而减少信号系统的架构层级;然后,改进ATS(列车自动监控系统)为以太网心跳信息交互的热备冗余结构;同时,设计DCS(数据通信系统)高冗余架构,实现信号核心业务间的物理隔离;最后,改变车载信号系统为头尾冗余结构,以完成主备方式的无缝切换。[结果及结论]此方案可显著提升信号系统的可靠性和可用性,实现故障时的无感运营,确保了高密度运营下的系统稳定性和连续性。[Objective]With the rapid development of urban rail transit,the operational volume of trains has significantly increased.The existing CBTC(communication-based train control)system can no longer meet the signaling system needs of high-density operations,necessitating the research into urban rail transit signaling system evolution scheme.[Method]An evolution scheme for urban rail transit signaling system is proposed,with transitioning from an up-down backup degradation operation mode to a left-right mutual backup redundancy mode in the event of single-point failures in signaling system.First,the ZC(zone controller)and CI(computer interlocking)systems are merged to decrease signaling system framework levels.Then,the ATS(automatic train supervision)system is improved to a hot standby redundancy structure for Ethernet heartbeat information exchange.Additionally,a highly redundant DCS(data communication system)architecture is designed to achieve physical isolation between core signal operations.Finally,the on-board signaling system is modified to a head-tail redundancy structure,enabling seamless switching between primary and backup modes.[Result&Conclusion]The proposed method significantly enhances the reliability and availability of the signaling system,ensuring seamless operations during failures,maintaining system stability and continuity under high-density operations.

关 键 词：城市轨道交通 信号系统 演进方案 故障运营无感 

分 类 号：U231.7[交通运输工程—道路与铁道工程]