基于列车动态行进轨迹的铁路建筑限界检测方法研究  

Research on Detection Method of Railway Building Boundary Based on Dynamic Train Trajectory

作　　者：李修岭 LI Xiu-ling(China Railway Lanzhou Bureau Group Co.,Ltd.,Lanzhou 730000 China)

机构地区：[1]中国铁路兰州局集团有限公司科研技术监督所,甘肃兰州730000

出　　处：《自动化技术与应用》2023年第8期24-27,共4页Techniques of Automation and Applications

摘　　要：针对当前铁路建筑限界检测方法存在运营干扰大、断面非连续、与实际运行轨迹有差异的问题。提出了基于列车动态行进轨迹的铁路建筑限界检测方法研究。利用钢轨光带的反射特性与几何特性提取出钢轨光带点云,采用最小正交二乘法分别拟合左右股钢轨光带方程,推算出更加符合列车行进的轨迹线,通过点云与轨迹线和光带的空间位置判断是否发生建筑物侵限,完成铁路建筑限界检测方法的研究。通过实验表明方法的建筑限界检测更符合列车的实际运行轨迹,精度更高。In view of the current railway construction boundary detection methods,there are problems of large operational interference,discontinuous cross-sections,and differences with actual operating trajectories.A detection method of railway building boundary based on the dynamic train trajectory is proposed.The reflection and geometric characteristics of the rail light strip are used to extract the point cloud of the rail light strip,and the least orthogonal square method is used to fit the left and right rail light strip equations respectively,and the trajectory line that is more in line with the train's travel is calculated,through the point cloud and the trajectory line The spatial position of the light belt is used to determine whether a building invades the limit,and the research on the detection method of the railway building limit is completed.Experiments show that the building boundary detection of this method is more in line with the actual running trajectory of the train,and the accuracy is higher.

关 键 词：自移动轨道扫描测量系统 钢轨光带 轨迹检测法 特征提取 数据采集 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]