城市轨道交通全自动运行模式下的车地无线 综合通信网络方案分析
刘洋
Analysis of Train/Ground Wireless Communication Under Full Automatic Operation Mode of Urban Rail Transit
LIU Yang
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作者信息:中铁第四勘察设计院集团有限公司通信信号设计研究处,430063,武汉
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Affiliation:Communication & Signal Design & Research Department, China Railway Siyuan Survey and Design Group Co., Ltd., 430063, Wuhan, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2019.12.006
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中图分类号/CLCN:U239.5
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栏目/Col:研究报告
摘要:
针对城市轨道交通全自动运行模式下的车地无线通信需求,对LTE(长期演进)技术的承载能力和频率规划方案进行了分析,发现LTE技术传输带宽受限,需要建立备用的无线通信传输通道。提出了一种适用于城市轨道交通全自动运行线路的LTE+WLAN(无线局域网)的综合车地无线通信网络方案,利用LTE A/B双网系统设备进行车地无线通信安全类和非安全类业务的综合承载。WLAN作为TCMS(列车监控管理系统)、车载CCTV(闭路电视)、车载PIS(乘客信息系统)的备用传输通道,可满足车地无线通信业务的带宽需求和可靠性需求,并保障城市轨道交通安全运营。
Abstracts:
Aiming at the train/ground wireless communication demands under full automatic operation mode of urban rail transit, the technology capacity and frequency planning of LTE (long term evolution) are analyzed. Due to the limitation of LTE system transmission bandwidth, the establishment of a standby wireless communication transmission channel is urgently needed. In this paper, an integrated LTE+WLAN scheme of train/ground communication network applicable to the full automatic operation of urban rail transit is proposed, which uses LTE A/B double network equipment to integrate the comprehensive bearing of security and non\|security business of train/ground wireless communication. Being the standby transmission channel of TIMS (train integrate management system), on\|board CCTV (closed\|circuit television) and PIS (passenger information system), WLAN could meet the requirements of wireless communication bandwidth and reliability, ensure the safety operation of rail transit.
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