摘要
危害电网安全运行的重要因素之一是覆冰,迫切需要准确可靠的方法对其监测。为此,本文基于三维即时成像立体视觉技术,利用搭载LoRa模块的四目相机对导地线覆冰进行监测。该方法中的硬件布置形式和成像原理可大大避免歧义,从而摆脱对结构光等辅助手段的依赖,在机器视觉领域实现了通用、实时、远距离和被动成像的功能,能够满足覆冰监测需要的野外和大视场范围的需求。实验证明,该方法能够直观观察到覆冰情况及准确计算覆冰的厚度,具有实用性及可行性,为导地线覆冰监测工作提供了有力的技术支撑。
One of the important factors that jeopardize the safe operation of the power grid is ice coating,which requires an accurate and reliable method for monitoring it.To this end,this paper is based on three-dimensional instant imaging stereo vision technology,using the three-dimensional camera equipped with LoRa module to monitor the ground wire icing.The hardware arrangement and imaging principle in the method can greatly avoid ambiguity,thereby escaping the dependence on auxiliary means such as structured light,and realize the functions of universal,real-time,long-distance and passive imaging in the field of machine vision,which can meet the needs of ice monitoring field and large field of view.The experiment proves that the method can visually observe the ice coating situation and accurately calculate the thickness of the ice coating.It has practicality and feasibility,and provides powerful technical support for the grounding wire ice monitoring work.
作者
叶凡
熊细涛
桂菲菲
何红太
秦源汛
Ye Fan;Xiong Xitao;Gui Feifei;He Hongtai;Qin Yuanxun(China Southern Power Grid Co.,Ltd,EHV Transmission Company,Qujing Bureasu,Qujing,Yunnan 655000;Beijing Guowang Fuda Science&Technology Development Co.,Ltd,Beijing 100070)
出处
《电气技术》
2020年第2期81-85,共5页
Electrical Engineering
基金
中国南方电网科技项目(KYKJXM00000022)
