正线高压脉冲轨道区段掉码问题的分析  

Analysis of Code-missing in High-voltage Pulse Track Sections of Main Lines

作　　者：吴坚 Wu Jian

机构地区：[1]中国铁路广州局集团有限公司长沙电务段,长沙410001

出　　处：《铁路通信信号工程技术》2023年第S01期13-17,共5页Railway Signalling & Communication Engineering

摘　　要：通过对不对称高压脉冲轨道电路原理和相关特性的研究,结合轨道电路和电码化电路的动作原理,利用时序图以及现场监控监测设备记录等,着重分析正线不对称高压脉冲轨道电路掉码问题发生的原因、时机,并提出解决相邻两区段为不对称高压脉冲轨道电路和25 Hz相敏轨道电路时机车掉码问题的方案和措施,为类似问题提供指导或借鉴。Through the research on the principle and relevant characteristics of asymmetric high-voltage pulse track circuits,combined with the action principle of track circuits and coding circuits,using the time sequence diagram and the records of on-site monitoring equipment,this paper emphatically analyzes the causes and timing of the code-missing problem of asymmetric high-voltage pulse track circuits on the main lines.The scheme and measures to solve the problem of locomotive code-missing when the two neighbouring sections use asymmetrical high-voltage pulse track circuit and 25 Hz phase-sensitive track circuit are proposed to provide guidance or reference for similar problems.

关 键 词：轨道电路分路不良 不对称高压脉冲轨道电路 25 Hz相敏轨道电路 相邻 掉码 

分 类 号：U284.2[交通运输工程—交通信息工程及控制]