悬挂式单轨交通智能巡检车车地无线通信方案研究

Research on Train-ground Wireless Communication Scheme of Intelligent Inspection Train in Suspended Monorail

由于悬挂式单轨结构特殊,对轨道梁健康状态的巡检需借助于智能巡检车,因此智能巡检车的运行状态和巡检数据的可靠、实时、稳定回传是实际工程实施中面临的难题。通过采用边缘计算和数据压缩技术降低数据传输带宽,对比自建、租用和共享3种车地无线通信方案,提出结合LTE-M和WLAN的车地无线通信方案。即在非运营时段,利用正线上的LTE-M车地无线通信综合承载网络,以及车辆基地内WLAN无线网络的设备和频谱资源,实现智能巡检车在全线范围内的车地无线通信功能。

Due to the special structure of suspended monorail, the intelligent inspection train is in need for daily inspection of the health status of the track beam. Therefore the reliable, realtime, and stable reporting of inspection data and its own operating status data of the intelligent inspection train is a tough task in actual project implementation. By using edge computing and data compression technology to reduce the demand for data transmission bandwidth, three vehicle-ground wireless communication solutions, including self-builting solution, rent solution and sharing solution, are compared and a train-ground wireless communication scheme combining LTE-M and WLAN is proposed. That is, during non-operation periods, the integrated carrying network of LTE-M train-ground wireless communication on the main line and the equipment and spectrum resources of WLAN wireless network in the vehicle base are utilized to realize the train-ground wireless communication function of intelligent inspection train within the full range of the line.