传输时延对CBTC影响的分析及消除  

Analysis and Elimination of the Impact of Transmission Delays on CBTC

作　　者：步兵[1] 唐涛[1] 

机构地区：[1]北京交通大学轨道交通控制与安全国家重点实验室,北京100044

出　　处：《铁道学报》2014年第6期41-46,共6页Journal of the China Railway Society

基　　金：国家自然科学基金(61132003);中央高校基本科研业务费(2011JBZ014);城市轨道交通北京实验室资助

摘　　要：基于通信的列控系统CBTC利用无线通信传递列车状态信息和控制命令,数据传输时延将引发不必要的列车牵引和制动,降低列控系统的性能。本文提出一种适用于CBTC的列控系统和数据通信系统的一体化设计方法,将CBTC的多列车控制系统等效为网络控制系统,建立一体化模型,分析传输时延对列控系统性能的影响。提出消除传输时延对列控系统影响的改进措施,并通过仿真验证该方法的有效性。Communication-based train control（CBTC） systems use wireless communication to transfer the status and control commands of trains . T he delays in data transmission introduce unnecessary tractions and brakes of trains which degrades performance of the train control system . In this paper , we proposd a method to in-tegrate design of the train control system and that of the communication system for CBTC through modeling the train control system as a networked control system . An integrated model was set up . The effect of transmis-sion delay on performance of the CBTC system was analyzed . In addition , we proposed a method to remove the negative impact of transmission delays on performance of the train control system . The effects of the pro-posed methods were proved through simulation .

关 键 词：列车控制 车地传输 网络控制系统 CBTC 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]