基于划分单元的区间占用逻辑状态判断与影响分析

Determination and Impact Analysis of Logic States of Section Occupation Based on Basic Units

在自闭线路区间,列控中心判断占用逻辑检查功能基本单元的选取为闭塞分区,但实际轨道电路是以区段为基本单元进行占用出清的判断。提出以轨道区段为单元进行逻辑状态判断的实现方案,经过与按照闭塞分区为基本单元的逻辑状态判断结果和发码防护进行对比,分析出以区段为基本划分单元更有利于安全防护,且对既有设备间接口没有影响,展望未来可考虑的逻辑判断基本单元的方式的可行性。

In automatic block section,TCC judges that the selection for basic unit of occupied logic check function is block section,but the occupation and clearing of track circuit is judged by taking section as basic unit actually.This paper proposes an implementation scheme for logic state judgment taking track section as the unit,compares with the logic state judgment results and code sending protection by taking block section as the basic unit,analyzes that taking the section as basic division unit has more benefits for safety protection,and which has no impact on existing equipment.This paper also prospects the feasibility for the way of the basic unit of logical judgment to be considered in the future.