摘要
针对山地轨道交通的运营特点及其对无线通信的需求,提出了"单网LTE+单网DMR"的新型无线通信系统方案。采用LTE宽带无线通信系统实现山地轨道交通无线业务的综合承载;当LTE系统故障时,由DMR窄带无线通信系统承载调度通信语音和调度命令、车次号等部分数据,保障列车降级为人工驾驶模式时进行必要的语音通信。该方案既满足承载山地轨道交通列控、调度通信等业务时对安全性和可靠性的要求,又可降低工程造价,节省工程投资,适用于山地齿轨等中低运量轨道交通无线通信系统。
According to the operation characteristics of mountain rail transit and its demand for wireless communication, the scheme of one new type of wireless communication system of a single LTE network plus a single DMR network is proposed, which adopts the broadband LTE wireless communication system for carrying comprehensive wireless services in mountain rail transit. When the LTE system fails, the narrowband DMR wireless communication system will take on the communication services of dispatching voice, dispatching command and train number so as to ensure the indispensable voice communication for degrading train operation to the mode of manual driving.The scheme can not only meet the requirements of safety and reliability of mountain rail transit for carrying train control, dispatching communication and other services but also help reduce the project cost and save project investment. The scheme is applicable for the wireless communication system of rail transit with low and medium traffic volume such as mountain rack rail.
作者
陈昳
虞凯
熊洁
段永奇
Chen Yi;Yu Kai;Xiong Jie;Duan Yongqi
出处
《铁道通信信号》
2021年第7期34-39,共6页
Railway Signalling & Communication
关键词
山地轨道交通
齿轨
无线通信
长期演进技术
数字移动无线电
Mountain rail transit
Rack railway
Wireless communication
Long term evolution(LTE)
Digital mobile radio(DMR)
