ATS系统动态时间同步方案研究  

Study on Dynamic Time Synchronization Scheme for ATS System

作　　者：周公建 袁汪凰 李建彬 Zhou Gongjian;Yuan Wanghuang;Li Jianbin

机构地区：[1]卡斯柯信号有限公司,上海200040

出　　处：《铁道通信信号》2021年第10期86-91,共6页Railway Signalling & Communication

摘　　要：列车自动监控系统是地铁信号系统中实现监控和行车指挥的重要系统,主要包含控制中心、车站和场/段等多个场所的设备,根据GPS和NTP协议,保证各设备按照相同的时间基准运行。一旦出现时间偏差,就可能产生错误的运行命令,影响列车运行。本文通过特定应用的时间同步方案设计,实现一套免维护的多时钟源的时间同步方案,确保整个系统时间同步运行稳定。Automatic Train Supervision System(ATS) is an important system in subway signalling to conduct wayside monitoring and traffic supervision, whose equipment is deployed at the control center, stations and depots. All of the equipment should run on the same time based on GPS and NTP protocol. Once there’s a time deviation among its equipment, this system may produce wrong traffic control command, thus affecting train operation. Through the design of specific application of time synchronization, a suite of maintenance-free multi-clock-source time synchronization scheme is realized to ensure the stability of time synchronization of the whole system.

关 键 词：地铁 信号系统 自动列车监控系统 时间同步 多时钟源 

分 类 号：U285.4[交通运输工程—交通信息工程及控制]