关于列控中心不同步原因及解决方案

Asynchrony Reasons of TCC Dual Systems and Solutions

在列控中心的现场实际应用中,分析列控中心与联锁间数据在安全数据网中因数据的传输路径存在不确定性,导致列控中心双系同一周期收到数据不一致的问题。并结合列控中心的系统结构,给出解决方案。

In the fi eld application of Train Control Center （TCC）, the data between the TCC and the interlockingsystem is transmitted in the safety data network. Due to the uncertainty of the data transmission path, the datareceived by TCC dual systems in the same cycle will be inconsistent, so the results are different based on thesame logical operation under different inputs. Thus TCC will outputs commands only from main system with analarm from the standby system, and the switching between dual systems will be affected accordingly.