摘要
介绍了现阶段各种无线通信技术在轨道交通行业中的应用。针对地铁的无线业务需求,提出了基于LTE(长期演进)技术的CBTC(基于通信的列车控制)、车载PIS(乘客信息系统)、车载CCTV(闭路电视)和语音视频综合调度三网合并应用方案,并给出了相应的LTE网络架构。结合地铁业务分析了LTE的技术优势和LTE信道带宽。从LTE的安全机制、数据丢包率、时延等方面对LTE在CBTC系统的应用情况进行讨论。根据地铁的LTE需求得出结论:三网合并方案在实现功能升级的同时能降低建设成本,降低维护成本,后期运营还可增加广告收入;LTE无线通信在轨道交通行业具有良好的发展前景。
Various wireless communication modes applied in rail transit industry are introduced.Aiming at the requirements for wireless business in subway,the combination scheme of 3 networks：CBTC,PIS （passenger information system） and CCTV （closed circuit TV） based on LTE technology is presented,the corresponding application scheme and network architecture is put forward.Combined with subway business,the technical advantages of LTE and channel bandwidth are analysed,the application of LET in CBTC system is discussed.The combination scheme of 3 networks can greatly reduce costs in construction,operation and maintenance while upgrading the performance,also increase the advertisement revenue in the operational period.LTE wireless communication will have a wide prospect in the development of urban rail transit industry.
出处
《城市轨道交通研究》
北大核心
2015年第1期112-117,共6页
Urban Mass Transit
关键词
地铁
无线通信
LTE
应用方案
subway
wireless communication
long term evolution （LTE）
application scheme
