基于GSM-R和GPS技术的列车控制技术研究

Research on the Train Control Technology Based on GSM-R and GPS

研究目的:结合青藏线超低温、高海拔特殊自然环境条件和列车运行的特殊要求,为实现信号系统设备的技术先进、少维护、无人值守、高可靠运行的目的,开展高原信号器材适应性和信号系统集成的研究,采用GSM-R和GPS技术,确立适用于青藏线特殊要求的信号系统设计方案。研究结论:根据青藏线的特殊要求,经过试验研究,确立了集计算机、通信、网络技术于一体的信号系统集成设计方案。采用GSM-R无线通信技术实现了信号安全信息车地双向传输;采用GPS和EOT设备,不设轨道占用检查设备,实现了列车占用检查和完整性检查;采用GPS差分定位技术提高了列车的定位精度,满足了高速行车和虚拟闭塞系统控制的安全需求;取消地面信号机和区间轨道电路,实现了车站联锁和区间自动闭塞;全新的运输组织模式和维护管理方式,实现了免维护、少维修的既定目标。采用RBWT虚拟技术,对试验系统进行了安全防护,保证了试验列车和地面设备的安全。

Research purposes： According to the special requirements of train running on Qinghai - Tibet Railway Line with special natural conditions of low temperature and high altitude, the researches are done on the signal equipment adaptability and system integration suitable for Qinghai -Tibet Railway Line based on GSM -R and GPS technology for the purpose of adopting advanced technology with less maintenance, no man on duty and high reliability of equipments. Research conclusions：According to the special requirements of qinghai -Tibet railway Line, after tests and researches, the integrated signaling system of computer, communication and net technologies is realized. The real information can be transferred bi - directionally between train and control center through GSM - R. Whether the track is occupied or not can be inspected by GPS and EOT equipments without track circuit equipments. With GPS difference orientation technology, the train location accuracy can be improved to satisfy the safety requirement of high - speed train and virtual blocking. The wayside signal and sectional track circuit are eliminated to realize station interlocking and sectional automatic blocking. With new traffic organization mode and equipment maintenance mode, the less maintenance is achieved. RBWT virtual technology, the safety of the tested train and wayside equipments is guaranteed.