基于综合承载的组网模式对重庆地铁四号线进行信号系统的升级改造构想

Signal system installation scheme based on Chongqing Metro Line 4 construction

城市轨道交通作为一种绿色、安全、快捷、准时的交通工具,在城市的发展中发挥着重要作用。而轨道交通的"大脑"——CBTC信号系统,则依赖于车地无线系统的完备。随着国内城市轨道交通的快速发展,LTE技术广泛应用于各类新建线路,大多数线路采用LTE-M单独承载信号业务。与此同时,需要同时新建PIS/CCTV、TETRA集群业务等无线网络,前期重复投资,后期运营管理成本高。文章基于当下现状,针对重庆地铁4号线一期及二期的建设提出相应整体解决方案,从投资经济性及技术先进性、维护便利性等方面提供新的建设思路。

As a green,safe,fast and punctual means of transportation,urban rail transit played an important role in the development of the city.The completion of train ground wireless system was depended on CBTC signal system,the"brain"of rail transit.With the rapid development of urban rail transit in China,LTE technology was widely used in all kinds of new lines,and most lines use LTE-M to carry signal services separately.New wireless networks such as PIS/CCTV and TETRA cluster services was needed to be built at the same time,with repeated investment in the early stage and high operation and management cost in the later stage.Based on the current situation,new ideas for building investment economy and advanced technology and maintenance convenience were provided by the corresponding overall solution for the construction of phase 1 and two phase of Chongqing railway Line 4.