摘要
GSM-R系统为高速运行的列车提供无线通信、无线调度等功能,其组网及网络覆盖方案,直接关系到行车安全。基于Hata优化算法,建立BIM基站模型,应用无人机、GIS等技术在地图上加载BIM模型,实现GSM-R组网及网络覆盖方案优化。GSM-R系统可计算并实时显示基站场强,并对网络覆盖情况进行判别,当场强低于接收灵敏度或上下行预算不平衡时,采用调整俯仰角、发射功率和天线高度的方式消除覆盖盲区,确保信号灵敏度、防止同频干扰,从而形成最优的GSM-R组网方案。
GSM-R system provides such functions as wireless communication and wireless dispatching for trains running at a high speed. The performance of its networking and network coverage scheme is directly related to traffic safety. Based on Hata optimization algorithm, the BIM base station model is established, and the BIM model is loaded on the map with UAV, GIS, and other technologies to optimize the GSM-R networking and network coverage scheme. GSM-R system can calculate and display the field strength of the base station network in real time, and assess the coverage situation. When the field strength is lower than the receiving sensitivity or the uplink/downlink unbalance is projected, the pitch angle, transmission power, and antenna height can be adjusted to eliminate the blind area of coverage, so as to ensure the signal sensitivity and prevent co-channel interference, thus forming the optimal GSM-R networking scheme.
作者
崔俊峰
靳翔
CUI Junfeng;JIN Xiang(The Electric Engineering Co Ltd of China Railway No.3 Engineering Group Co Ltd,Jinzhong Shanxi 030600,China;Lanzhou Jiaotong University,Lanzhou Gansu 730000,China)
出处
《铁路技术创新》
2021年第5期81-85,共5页
Railway Technical Innovation
作者简介
第一作者:崔俊峰(1979-),男,高级工程师。E-mail:68113522@qq.com。
