基于Truetime的GSM-R场强测试系统网络性能研究  

Study of Performance of GSM-R field Strength Testing System Network Based on Truetime

作　　者：刘宏志[1] 李绍坤[1] 林木 

机构地区：[1]北京工商大学计算机与信息工程学院,北京100048 [2]中铁电气化局集团北京电信研究试验中心有限公司,北京100036

出　　处：《计算机测量与控制》2012年第6期1613-1615,1618,共4页Computer Measurement &Control

基　　金：北京市教育委员会科技发展计划资助项目(KM200610011008)

摘　　要：采用交换式以太网技术设计GSM-R场强测试系统,以完成测试列车运行时速大于250公里时铁路沿线GSM-R场强分布情况,包括场强数据的采集、实时曲线显示、数据回放显示及后期分析;介绍了Truetime仿真工具箱的使用,包括Truetime内核模块、网络模块、ttSendMsg模块、ttGetMsg模块等,对GSM-R场强测试网络设计了一个模型来模拟GSM-R场强数据的传输,使用Tru-etime工具箱模拟分析了网络类型、数据传输速率、交换机缓存容量和网络丢包率对数据传输的影响,结果表明使用交换式以太网技术设计系统可以满足高速列车GSM-R场强测试的要求。The GSM--R field strength testing system was designed based on switched Ethernet, mainly used to test GSM--R field strength around railway and speed of train is above 250km/h. System receives field strength data, display real--time curve, replaY the curve and analysis field strength data. The method of using Truetime toolbox was introduced, including Truetime kernel block, Truetime network block, ttSendMsg block, ttGetMsg block and so on. A model was designed for testing network to simulate GSM-- R field strength data transmission. And the influence of network types, data transfer rate, capacity of switch cache, data package loss probability for data transmission was analyzed by Truetime toolbox. The results shows that system based on switched Ethernet could fill the needs of GSM--R field strength testing on high--speed railway.

关 键 词：场强测试 GSM—R TRUETIME 监理 高速铁路 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]