基于北斗三代的铁路监测预警系统设计

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。

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

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.