中国铁道科学2025，Vol.46Issue(2)：29-36,8.DOI:10.3969/j.issn.1001-4632.2025.02.03
轨道检测里程测量误差补偿算法研究
Study on Error Compensation Algorithm for Mileage Measurement in Track Inspection
摘要
Abstract
The track inspection of high-speed railway is based on the pulse counting principle of wheel axle encoder to measure mileage,and the measurement error accumulates and increases with the increase of vehicle operating mileage.To reduce the cumulative error of mileage measurement,the causes of mileage measurement errors in track inspection were analyzed first,and a ping-pong algorithm for error compensation was proposed based on the idea of positive and negative error cancellation.Then,the effectiveness of the algorithm was verified by simulation tests using the track inspection comprehensive test calibration platform.Finally,the practicality of the algorithm was verified by real vehicle tests on the circular railway line at the National Railway Test Center.The results show that the maximum accumulated measurement error is 0.3 mm within a comparison cycle,and the whole mileage measurement error can be cancelled out by positive and negative signals in one comparison period.The algorithm is applicable to lower-resolution encoders,which reduces the requirement for encoder resolution for track inspection mileage measurement.For the new-built comprehensive inspection trains,in-service track inspection vehicles,and in-service comprehensive inspection vehicles were compared.The track inspection mileage measurement error under 100 km condition can be reduced by approximately 65 m,57 m,and 61 m,respectively.The algorithm is practical and can provide a methodological reference for accurate mileage measurement under special working conditions such as long tunnels and remote mountainous areas without auxiliary positioning.关键词
高速铁路/轨道检测/里程误差/乒乓算法/轮轴编码器/辅助定位Key words
High-speed railway/Track inspection/Mileage error/Ping-pong algorithm/Wheel axle encoder/Auxiliary positioning分类
交通运输引用本文复制引用
王琰,魏世斌,吴奇永,陈仕明,杨飞,费继友..轨道检测里程测量误差补偿算法研究[J].中国铁道科学,2025,46(2):29-36,8.基金项目
国家自然科学基金资助项目(52278465) （52278465）
国家重点研发计划项目(2022YFB2602900) （2022YFB2602900）
中国国家铁路集团有限公司科技研究开发计划课题(N2022G051) （N2022G051）
中国铁道科学研究院集团有限公司院基金课题(2023YJ024) （2023YJ024）
