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城市轨道交通行业的快速发展对专用数字集群通信系统无线网络性能提出了新的需求。数字集群通信系统为城市轨道交通运营企业提供行车指挥调度、控制信息传输等服务,Tetra无线网络性能直接影响到运营效率和行车安全。本文以地铁为系统应用场景,基于无线通信理论和网络技术,结合数字集群通信系统的基本特点,通过分析无线网络及其影响因素,对地铁数字集群通信系统Tetra无线信号进行测试及数据分析,并给出了相关建议和分析。对城市轨道交通数字集群通信系统建设具有一定的参考价值。
The rapid development of the urban rail transit industry has put forward new demands on the performance of the wireless network of the dedicated digital trunked communication system. The digital trunking communication system provides traffic command and dispatch, control information transmission and other services for urban rail transit enterprises. The performance of Tetra wireless network directly affects operational efficiency and traffic safety. Based on the theory of wireless communication and network technology, combined with the basic characteristics of digital trunking communication system, this paper analyzes and analyzes the wireless network and its influencing factors to test and analyze the Tetra wireless signal of subway digital trunked communication system Relevant suggestions and analysis are given. It has certain reference value to the construction of digital trunking communication system of urban rail transit.