基于北斗三代的铁路监测预警系统设计

Design of railway monitoring and early warning system based on Beidou third Generation

针对铁路安全隐患问题,提出将第三代北斗卫星导航系统(简称:北斗三代)高精度定位技术引入铁路监测预警,设计了基于北斗三代的铁路监测预警系统,该系统利用北斗高精度定位的原理实现位移数据高精度监测,同时具备实时传输和即时预警等功能。实践证明,该系统相对于基于GPS的监测预警系统具有明显优势,可见的卫星个数显著增加,水平精度提高20%以上,高程精度提高50%以上。同时通过不同基线长度下监测性能的对比,为合理布设基准站提供参考。

Aiming at the hidden danger of railway safety,this paper introduced the third generation Beidou satellite navigation system(Beidou third generation for short)high-precision positioning technology into railway monitoring and early warning,designed the railway monitoring and early warning system based on Beidou third Generation.The system used the principle of Beidou high-precision positioning to implement high-precision monitoring of displacement data,and had real-time transmission and instant warning functions.Practice has proved that the system has obvious advantages over the GPS based monitoring and early warning system,with a significant increase in the number of visible satellites,an increase in horizontal accuracy of more than 20%,and an increase in elevation accuracy of more than 50%.Through the comparison of monitoring performance under different baseline lengths,it provides a reference for the reasonable deployment of reference stations.