输电线路走廊地物到导线危险距离定位方法  

Localization method for dangerous distance from ground objects to wires in transmission line corridor

作　　者：范亚洲 李国强 FAN Yazhou;LI Guoqiang(School of Architecture and Engineering,Northeast Electric Power University,Jilin 132012,Jilin,China;Electric Power Research Institute,Guangdong Power Grid Co.,Ltd.,Guangzhou 510080,Guangdong,China;Machine Patrol Management Center,Guangdong Power Grid Co.,Ltd.,Guangzhou 510080,Guangdong,China)

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]广东电网有限责任公司电力科学研究院,广东广州510080 [3]广东电网有限责任公司机巡管理中心,广东广州510080

出　　处：《沈阳工业大学学报》2024年第6期748-753,共6页Journal of Shenyang University of Technology

基　　金：国家自然科学基金项目(61803099);广东省电网公司科技项目(031000KK52200003)。

摘　　要：为了准确定位输电线路走廊地物到导线危险距离,提出输电线路走廊地物到导线危险距离定位方法。利用激光雷达获取点云图像数据,利用滤波法消除图像噪声。结合梯度计算和相位编组检测出图像目标的直线边缘位置,提取异常距离点。通过全局峰值实现杆塔异常距离定点全局检测,利用灰色关联分析法建立安全距离评估模型,实现输电线路走廊地物到导线危险距离定位。测试结果表明,该方法异常距离定位容错空间预留误差平均值为0.3 m,异常定位误差平均值为0.26 m,平均定位准确率为98.9%,可以提升输电线路走廊地物到导线危险距离定位准确性。In order to accurately locate the dangerous distance between ground objects and wires in a transmission line corridor,a method for locating the dangerous distance between ground objects and wires in the transmission line corridor was proposed.LiDAR was used to obtain point cloud image data and filtering method was used to eliminate image noise.By using gradient calculation and phase grouping,the linear edge position of target image was detected,and the abnormal distance points were extracted.Global detection of abnormal distance between poles and towers was achieved through global peak values,and a safety distance evaluation model was established using grey correlation analysis method to locate the dangerous distance between ground objects and wires in the transmission line corridor.The test results show that the average reserved error value of the fault tolerance space for abnormal distance localization of this method is 0.3 m,the average error value of abnormal localization is 0.26 m,and the average localization accuracy is 98.9%,by which can improve the accuracy of dangerous distance localization from ground objects to wires in the transmission line corridor.

关 键 词：梯度计算 激光雷达 视觉图像 输电线杆塔 全局投票 相位编组 异常定位 

分 类 号：TM755[电气工程—电力系统及自动化]