摘要
铁路巡检工作是铁路安全运营工作的重中之重,但是铁路站场内复杂的环境使得常规的卫星导航定位性能大大降低,无法满足巡检工作和数据运营的要求.本文分析了铁路股道形成的轨道峡谷模式下定位场景的特点,分别对使用北斗导航定位实时动态(real-time kinematic,RTK)、连续运行参考站(continuously operating reference stations, CORS)、星基增强系统(satellite-based augmentation system, SBAS)等高精度增强模式进行了分析、实测及精度统计,最后使用了集成多种定位模式的手持北斗高精度定位终端,接入千寻CORS数据,在成都公兴站股道上进行了实地使用与巡检模拟测试.分析结果表明:定位精度有较大提高,高精度定位结果可以满足铁路巡检要求,为下一步开发智能巡检管理系统提供了有益的参考.
Railway inspection work is the most important for the safe operation of railways.However,the complex environment within railway stations significantly reduces the performance of conventional satellite navigation systems,making it unable to meet the requirements of inspection.This article analyzes the characteristics of positioning scenarios made by railway track canyon mode,examines and statistically analyzes high-precision enhancement modes such as BeiDou RTK,CORS,and SBAS.Finally,a handheld BeiDou high-precision positioning terminal that integrates multiple positioning modes is used in conjunction with Qianxun CORS data for testing on tracks at Chengdu Gongxing Station.The analysis results show a significant improvement in positioning accuracy,indicating that high-precision positioning results can meet the requirements of railway inspections and provide valuable references for developing intelligent inspection management systems in the future.
作者
王绍新
翁艳彬
WANG Shaoxin;WENG Yanbin(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China;CETC Avionics Co.,Ltd,Chengdu 611731,China;College of Computer Science,Hunan University of Technology,Zhuzhou 412007,China)
出处
《全球定位系统》
CSCD
2024年第1期60-67,共8页
Gnss World of China
