GNSS-INS多传感器高速铁路轨道综合检测

Richie Li, Z. Bai, Bobo Chen, Haohao Xin, Yuhang Cheng, Qiong Li, F. Wu
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引用次数: 4

摘要

轨道测量对于保证轨道的高平整度、高稳定性和高可靠性,保证高速列车高速、安全、平稳运行,具有极其重要的基础和先进性。至少包括设计、施工、运营和维护阶段的控制测量、路线测量和路基测量。然而,传统的高速铁路轨道测量主要考虑设计和施工阶段的情况,存在复测周期长、人工成本高、测量效率低等问题。它不能完全满足大型高速铁路轨道在运维阶段的快速检测需求,特别是在中国。为此,提出了一种基于全球导航卫星系统(GNSS) /惯性导航系统(INS)和多传感器的高速铁路轨道综合检测方案,并开发了相应的轨道综合检测系统。应用于几个实际的高速铁路轨道微调工程项目,结果表明,该系统实现了高速铁路轨道路基变形监测与轨道几何状态绝对测量和相对测量的一体化。轨道不平顺度测量的横向偏差精度为2mm,纵向偏差精度为2mm,与常规轨道不平顺度检测仪(即Amberg GRP1000)结合水平仪具有较好的一致性,平均检测速度较快,为1 km/h;轨道路基变形实时监测的横向精度为1mm,纵向精度为1.5 mm;完全满足《高速铁路工程测量规范》的具体要求,在保证测量精度的同时,显著提高了检测效率。本文系统地介绍了该方案的主要组成部分和工艺流程,可为后续类似轨道检测系统和方案的研发提供参考
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-speed Railway Track Integrated Inspecting by GNSS-INS Multisensor
Track measurement is extraordinarily fundamental and antecedent for ensuring high smoothness, high stability and high reliability of tracks to guarantee high-speed, safe and smooth running of high-speed trains. It at least includes control survey, route survey, and subgrade survey in the stages of design, construction, operation and maintenance. However conventional track measurement for high-speed railway mainly considered the situation in the stages of design and construction which has several problems including long retest period, high labor cost, and low measurement efficiency. It cannot fully meet the requirements of rapid detection for large-scale high-speed railway tracks in the stages of operation and maintenance, especially in China. To this end, a novel high-speed railway track integrated inspection solution based on global navigation satellite system (GNSS) / inertial navigation system (INS) and multisensor is proposed, and the corresponding track integrated inspection system is developed. It has been applied to the several actual track fine adjustment engineering projects for high-speed railway, and the results show that the proposed system realized the integration of the track subgrade deformation monitoring and the track geometric status absolute measurement and relative measurement for high-speed railway, and it has the lateral deviation accuracy of 2 mm and vertical deviation accuracy of 2 mm for track irregularity measurement in good consistency with the conventional track irregularity inspecting instrument (i.e., Amberg GRP1000) coupled with level at the faster average detection speed of 1 km/h, and the horizontal accuracy of 1 mm and the vertical accuracy of 1.5 mm for track subgrade deformation monitoring in real time, which fully satisfy the specific requirements for the Code for Engineering Survey of High Speed Railway, and significantly improve the detection efficiency while ensuring the measurement accuracy. The main components and process flow of the proposed solution have been systematically introduced in this paper, which can provide a reference to the following research and development of similar track inspection systems and solutions
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