区间继电式逻辑检查电路的改进  

Improvement of Relay Logic Check Circuit in Sections

作　　者：欧阳征 朱国纬 

机构地区：[1]广州铁路(集团)公司职教处株洲职工培训基地,湖南株洲412000

出　　处：《铁路通信信号工程技术》2017年第6期94-96,共3页Railway Signalling & Communication Engineering

摘　　要：自动闭塞区间增加继电式逻辑检查电路后,当列车在发车进路最外方轨道区段发生正常占用后丢失时,会导致机车掉码。经研究,如在JLJ继电器第一条自闭电路中取消IBG继电器的一组后接点或增加XIFMJ继电器的一组前接点,可以防止列车在发车进路最外方轨道区段正常占用,后丢失时,掉码问题的发生(单机除外)。After adding relay logic check circuits in the automatic blocks, if the outermost track section ofthe departure route detects normal train occupancy and then lost, the locomotive will fail to receive shiftfrequency codes. For solving the problem, a group of back contacts of IBG relay in the fi rst self-stick circuitof JLJ relay is removed or a group of front contacts of XIFMJ relay is added, such problem of lost codescan be prevented （not applicable for single locomotive）.

关 键 词：逻辑检查电路 机车掉码 继电器 

分 类 号：U284.43[交通运输工程—交通信息工程及控制]