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城市轨道交通的通信系统是列车高速密集安全运行的保证,也是正常运营、指挥、管理、服务的必须平台,也是在紧急异常情况下防灾求援和事故处理的指挥通信系统。为更好地选择适合城市轨道交通的通信传送平台,从城市轨道交通通信的特点出发,介绍了开放式传输网络(OTN)和多业务传输平台(MSTP)的基本原理、特点,并对两种技术的特点进行了比较。结合目前城市轨道交通的实际选型,得出OTN技术是目前最佳选择的结论。
The communication system of urban rail transit is a guarantee of intensive and safe operation of high-speed trains. It is also a necessary platform for normal operation, command, management and service. It is also a command and communication system for disaster prevention and emergency assistance and accident handling in an emergency. In order to better select the communication transmission platform suitable for urban rail transit, based on the characteristics of urban rail transit communication, the basic principles and characteristics of Open Transport Network (OTN) and Multi-Service Transport Platform (MSTP) are introduced. The technical characteristics are compared. Combined with the actual selection of urban rail transit, it is concluded that OTN technology is the best choice at present.