关键词: 输电线路, 覆冰厚度, 开关中值滤波, Ｃａｎｎｙ算子

Abstract: Transmission line icing seriously endangers the safe operation of power system, and the detection of transmission line icing thickness is particularly important. Based on the data collected in Yudong area, this paper studies the improved method of transmission line icing image recognition. The adaptive switching median filter and Otsu threshold segmentation method are used to reprocess the target image and optimize the Canny operator, and a method for identifying the ice thickness of the conductor based on edge detection is established. After comparing the identification results with the optical fiber detection data, it is found that the method used in this paper is effective for the detection of transmission line icing thickness, with an average error of about 4.10%.