The invention discloses a converter
station intelligent gateway image
recognition system based on a YOLOv3 target detection
algorithm, and the
system employs a three-stage cooperative
processing architecture design, and builds seamless connection of a
multispectral image collection layer, an edge calculation gateway layer, and a cloud operation and
maintenance management platform layer. The invention further provides an equipment defect detection method based on the
system, bimodal image data are collected through the visible light camera and the
thermal infrared imager, preprocessing operation is carried out, equipment positioning and defect classification are synchronously executed by utilizing the improved YOLOv3 network, a structured detection result is output, temperature
field analysis is carried out on an
infrared thermal image, and the equipment defect detection result is obtained. And an abnormal heating area is identified, when defects are detected, multi-level risk response early warning is generated, and a defect diagnosis report is pushed to the cloud operation and
maintenance management platform layer. Real-time
image analysis of converter
station equipment can be realized, the method is suitable for automatic detection of typical fault defects of the equipment, and the operation and maintenance efficiency of a
power grid is improved.