基于SimEvents/Stateflow的CTCS-3级列控系统车地无线通信子系统建模与分析  

Modeling and Analyzing Onboard-Wayside Radio Communication Subsystem of CTCS-3 Level Train Control System Based on SimEvents/Stateflow

作　　者：赵会兵[1] 李毅[2] 全宏宇 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]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：《中国铁道科学》2015年第4期115-121,共7页China Railway Science

基　　金：国家自然科学基金资助项目(61374201)

摘　　要：根据CTCS-3级列控系统中无线通信子系统的分层结构和其具有随机性的特点,采用Matlab软件中SimEvents与Stateflow相结合的方式实现车地无线通信过程的建模与仿真,分析安全连接建立时间和不同长度无线应用消息传输延迟时间。结果表明:无线通信子系统安全连接建立时间符合《CTCS-3级列控系统GSMR网络需求规范》的要求,并且具有一定的安全余量;仿真得到不同长度的无线应用消息传输延迟时间,可为列控系统车地无线通信的实时性分析提供参考;建模方法简洁高效,模型能够较好地描述系统特性,仿真结果可为列控系统车地无线通信技术规范的完善、系统的设计与实现提供数据支持。According to the hierarchical structure and stochastic characteristics of the radio communication subsystem in CTCS-3 level train control system, the SimEvents combined with Stateflow in Matlab was adopted to model and simulate the process of onboard-wayside radio communication. Then the safety connection setup time and wireless application message transfer delay time with different lengths were analyzed. The results showed that the safety connection setup time of radio communication subsystem met the requirements of ＂CTCS-3 level train control system GSM-R network requirements specification＂, and also had a certain safety margin. The wireless application message transfer delay time with different lengths in simulation could provide references for the real-time analysis of onboard-wayside radio communi- cation of train control system. The modeling method is simple and efficient, and the model can better describe the characteristics of the system. The simulation results can provide data support for improving the technical specification, design and realization of the onboard-wayside radio communication in train control system.

关 键 词：列车控制系统 车地无线通信系统 安全连接建立时间 无线应用消息传输延迟时间 

分 类 号：U285.211[交通运输工程—交通信息工程及控制] U284.482[交通运输工程—道路与铁道工程]