货车联络线微机化自动闭塞区间逻辑检查方法研究  

Study on the method of automatic block interval logic check of freight train tie line

作　　者：李爱文 LI Aiwen(Lanzhou Railway Design Institute Co Ltd.,Lanzhou 73000,China)

机构地区：[1]兰州铁道设计院有限公司,兰州73000

出　　处：《自动化与仪器仪表》2020年第5期37-40,共4页Automation & Instrumentation

基　　金：中国铁路总公司科技研究开发计划课题(No.2015G034-E)。

摘　　要：为了提高货车运行过程中的安全性,需要进行自动闭塞区间的逻辑检查,提出一种基于近场源输出信号波束集成控制的货车联络线微机化自动闭塞区间逻辑检查方法。构建货车联络线微机化自动闭塞区间的列控信号模型,采用继电式区间逻辑检测方法进行自动闭塞区间逻辑信号的时频转换和谱分解,在区间轨道区段内,根据列控信号的频谱分解结果进行自适应波束形成处理,采用近场源逻辑参量估计方法进行原轨道的电路状态特征分析,根据信号输出的占空比修改列控中心的地面设备软件,实现货车联络线微机化自动闭塞区间逻辑检查。仿真结果表明,采用该方法进行货车联络线微机化自动闭塞区间逻辑检查的准确性较高,抗干扰能力较强,提高了区间行车过程的监控效能。In order to improve the safety of freight train during operation,it is necessary to carry out logical check of automatic block section.A new method of automatic block interval logic checking based on beam-beam integrated control of near-field output signal is proposed.The train control signal model of freight train tie-line microcomputer automatic block section is constructed.The time-frequency conversion and spectrum decomposition of automatic block interval logic signal are carried out by using relay interval logic detection method.According to the frequency spectrum decomposition of train control signal,adaptive beamforming processing is carried out.The circuit state characteristic of the original track is analyzed by using the method of near-field logical parameter estimation,and the ground equipment software such as train control center is modified according to the duty cycle of the signal output.The automatic block interval logic check of freight train tie-line is realized.The simulation results show that the method has high accuracy and strong anti-interference ability in the computerized automatic block interval logic check of freight train tie-line,and improves the efficiency of monitoring and controlling the interval driving process.

关 键 词：货车 联络线 微机化 区间自动闭塞 信号 逻辑检查 

分 类 号：TN912[电子电信—通信与信息系统]