基于机器视觉的架空输电线路检测方法仿真  

Simulation of Overhead Transmission Line Detection Method Based on Machine Vision

作　　者：张佩 何宁辉 周秀 刘世涛 ZHANG Pei;HE Ning-hui;ZHOU Xiu;LIU Shi-tao(State Grid Ningxia Electric Power Co.,Ltd.Electric Power Science Research Institute,Yinchuan Ningxia 750001,China;State Grid Ningxia Electric Power Co.,Ltd,Yinchuan Ningxia 750001,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,宁夏银川750001 [2]国网宁夏电力有限公司,宁夏银川750001

出　　处：《计算机仿真》2025年第2期123-127,共5页Computer Simulation

基　　金：国网宁夏电力有限公司科技项目(5229DK190050)。

摘　　要：架空输电线路图像中大多会包含天空、树木、建筑物等多种背景元素,为舞动检测带来干扰,为了提升检测效果,提出一种机器视觉下的架空输电线路舞动检测方法。采用机器视觉技术实时获取输电线路图像,采用随机游走算法对获取的输电线路图像展开分割处理,确定输电线路所在的区域,避免背景元素对后续舞动检测造成干扰,提升检测精度。通过滑动窗口遍历分割处理后获取的架空输电线路,计算窗口内投影曲线的Laws纹理能量值,确定间隔棒的位置。同时,根据激光位移传感器设备实时捕获的输电线路图像信息绘制间隔棒的运动轨迹。以运动轨迹为依据展开计算,获取输电线的舞动幅值和频率,同时设定阈值判断架空输电线路是否发生舞动,完成架空输电线路舞动检测。仿真实验结果表明,在复杂背景下所提方法可以有效提升架空输电线路舞动检测结果的准确性。The images of overhead transmission lines mostly contain sky,trees,buildings and other background elements,which bring interference to galloping detection.In order to improve the detection effect,a galloping detection method of overhead transmission lines based on machine vision is proposed.The machine vision technology is used to obtain the transmission line image in real time,and the random walk algorithm is used to segment the obtained transmission line image to determine the area where the transmission line is located,so as to avoid the background elements from interfering with the subsequent galloping detection and improve the detection accuracy.The sliding window traverses the overhead transmission line obtained after segmentation,calculates the energy value of Laws texture of the projection curve in the window,and determines the position of the spacer.At the same time,according to the real-time transmission line image information captured by the laser displacement sensor equipment,the motion trajectory of the spacer bar is drawn.Based on the motion trajectory,the calculation is carried out to obtain the galloping amplitude and frequency of the transmission line,and at the same time,the threshold is set to judge whether the galloping of the overhead transmission line occurs,thus completing the galloping detection of the overhead transmission line.The simulation results show that the proposed method can effectively improve the accuracy of galloping detection results of overhead transmission lines in complex background.

关 键 词：机器视觉 架空输电线路 舞动检测 随机游走算法 Laws纹理能量 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]