Positioning method and device for temperature gradient anomaly diagnosis of power equipment

• Main Authors: ZHANG BOWEN, JIA PENGFEI, SHEN PEIFENG, LI YONG, ZHU JIAYUN, CHEN TING, LI LIHUA, WEN BEIBEI, CHENG YANG, JU LING, TANG DEBAO, HE TIANYU, GAO FEI, YANG NING, CHEN MO, YANG YANG, BI JIANGANG, YAO JIANGUANG, LIAO SIZHUO, HAN SHUAI
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a positioning method and device for temperature gradient anomaly diagnosis of power equipment. The positioning method comprises the following steps: acquiring a visible light band image and an infrared band image of the power equipment; fusing the visible light band image and the infrared band image to obtain a fused image; dividing the fused image into a pixel area of target equipment and a pixel area of non-target equipment, and obtaining a temperature matrix corresponding to the pixel area of the target equipment according to a mapping relation between pixels and temperature values; analyzing the temperature matrix by adopting a space temperature gradient to obtain space temperature gradient distribution corresponding to the temperature matrix, and obtaining pixel points with abnormal temperature gradients in the target area according to the space temperature gradient distribution; and according to the pixel points with the abnormal temperature gradient in the target area, carrying