环线式车地通信系统程序停车过程和故障分析

Problem and Procedure of Programmed Stopping on TWC System of the Loop Style

对上海轨道交通2号线环线式车地通信(TWC)系统程序停车过程进行分析。深入研究了轨道电路、车地通信、车载软件、车辆接口等对停站精度的影响,通过调整轨旁和车载设备参数、TWC单元控制软件升级、TWC传输线抗干扰等一系列措施,基本上解决了列车停车不到位、超过停车位置以及列车不停站的问题。

To study the procedure of trains operation and the programmed stopping of Shanghai Line 2 depending on train wayside communication（TWC）system of the loop style,this paper analyse the track circuit,TWC,cab software,vehicle interface,and the influence on station stop precision.Through adjusting the settings of wayside and cab equipment,updating the software of TWC control unit,adopting the anti-jamming cable of TWC transmission line,the problems in programmed stopping could be basically solved.