基于移动激光点云的非接触式接触网参数检测方法  

Non-contact Inspection Methods for OCS Parameters Based on Mobile Laser Point Cloud

作　　者：宋宗莹[1] 尹太军 张海山 闫大龙 王文斌 曾杉[3] SONG Zongying;YIN Taijun;ZHANG Haishan;YAN Dalong;WANG Wenbin;ZENG Shan

机构地区：[1]中国神华能源股份有限公司 [2]中科吉芯(秦皇岛)信息技术有限公司 [3]中国科学院地理科学与资源研究所

出　　处：《电气化铁道》2024年第3期48-53,共6页Electric Railway

基　　金：中国神华能源股份有限公司科技项目“基于地理时空大数据技术的重载铁路检测应用研究”(SHGF-21-02)。

摘　　要：针对目前接触网参数检测存在精度低、效率低等问题,提出一种基于移动激光点云的非接触式接触网参数检测方法:基于预处理后的接触网点云实现接触线和接触网支柱要素的分类;基于连通性分析,实现接触网支柱单体化分割,并通过建立kd-tree数据结构提取定位点;最后根据定位点与轨面关系计算接触网导高、拉出值。结果显示,基于本文方法得到的接触网参数检测精度符合《接触网悬挂状态检测监测装置(4C)暂行技术条件》要求,验证了方法的有效性和准确性。A non-contact inspection method for OCS parameters based on mobile laser point cloud is put forward with regard to the problems of low accuracy and efficiency in OCS parameter inspection at present:the method is able to realize the classification of elements of contact wire and OCS masts on the basis of the pre-treated OCS point cloud,realize monomer segmentation of OCS masts on the basis of the connectivity analysis,extract registration points by establishing a kd-tree data structure and calculate the contact wire heights and staggers in accordance with the relationship between registration point and rail surface.The results show that the inspection accuracy of OCS parameters based on the method mentioned in the paper meets the requirements of the Provisional Technical Conditions for OCS Suspension Status Inspection and Monitoring Device(4C),with the effectiveness and accuracy of the method being verified.

关 键 词：移动激光点云 接触线 接触网支柱 定位点 导高 拉出值 

分 类 号：U226.8[交通运输工程—道路与铁道工程]