控制与信息技术Issue(6)：123-128,6.DOI:10.13889/j.issn.2096-5427.2024.06.100
基于多源信息融合的列车运行控制系统测速定位技术研究
Research on Speed and Position Detection Technology for Train Operation Control System Based on Multi-Source Information Fusion
摘要
Abstract
The conventional train positioning technology primarily relies on wheelset speed measurement and distance measurement,resulting in a single source of locating data that is susceptible to factors such as wheelset wear,wheel idling,and wheel sliding.This technology yields positioning results with significant errors,compromising the safety of train operation.To deal with this issue,this paper investigates the speed measurement and positioning technologies employed in the next-generation LKJ train operation control system.Key aspects studied include automatic alignment upon departure at originating stations,automatic correction of wheel diameter,elimination of accumulative errors in distance measurements,alerts for wheel idling and sliding,and error rectification.The paper presents a novel train locating solution that focuses on heterogeneous multi-channel fusion for speed and distance detection.This approach integrates radar speed sensors,BeiDou differential positioning,and balise technologies with the existing wheelset speed measurement technology.Results of experiments conducted on real trains indicated that with the implementation of the proposed technology,train positioning errors were reduced from±2.0%to±1.5%,and the positioning accuracy reached up to±5 cm and operational control precision within±30 cm—thereby facilitating precise control over trains and enhancing traffic capacity.关键词
轨道交通/列车运行控制系统/测速定位/多源信息融合Key words
rail transit/train operation control system/speed and position detection/multi-source information fusion分类
交通运输引用本文复制引用
杨崇福..基于多源信息融合的列车运行控制系统测速定位技术研究[J].控制与信息技术,2024,(6):123-128,6.基金项目
湖南省重点研发计划项目(2023GK2052) （2023GK2052）
