Abstract

This study aims to solve the problem of reduced detection accuracy caused by a complex target-position scene and an uneven size in the detection of the abnormal heating point in an infrared image of a high-voltage switchgear.According to the YOLO v3 algorithm,the basic network architecture was optimized by including a convolution module and adjusting some hyper-parameters to realize rapid detection and identification of abnormal heating points in high-voltage switchgears.Simultaneously,a dataset for abnormal heating points of infrared images in high-voltage switchgears was established,and appropriate weights were obtained through training.The experimental results indicated that the detection method had a fast recognition speed,high accuracy,and strong generalization ability.The test accuracy reached 91.83%,indicating that the method can be initially applied to the detection of abnormal heating-point targets in high-voltage switchgears.

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