柱上设备带电裸露点绝缘化判定方法及系统

By using illumination and image capture modes based on light intensity determination, combined with a multi-feature linear weighted fusion strategy and a deep learning model, the problems of poor image acquisition quality and inaccurate defect identification in the insulation retrofit of live exposed points of pole-mounted equipment are solved, and high-precision defect detection is achieved under different lighting conditions and complex layouts.

CN120992625BActive Publication Date: 2026-07-17STATE GRID INTELLIGENCE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID INTELLIGENCE TECHNOLOGY CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve high-quality image acquisition under different lighting conditions and complex equipment layouts during the acceptance of insulation retrofits for exposed live points of pole-mounted equipment. This leads to inaccurate defect identification, and the shaking of the insulating rod during manual operation affects image quality.

Method used

We employ a lighting and image capture mode based on illumination intensity determination, combined with a focal length adjustment method using a multi-feature linear weighted fusion strategy. We utilize YOLOv5 and YOLOv8 deep learning models for image quality assessment and anomaly/defect detection. By weighted summation of classification loss, bounding box regression loss, and confidence loss, we achieve automatic image quality adjustment and defect identification.

Benefits of technology

It improves image quality under different lighting conditions and complex equipment layouts, accurately identifies and classifies different defect features, improves detection accuracy, and solves the problems of poor image quality and inaccurate defect identification.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于电力设备绝缘化改造后验收技术领域,提供了一种柱上设备带电裸露点绝缘化判定方法及系统,基于光照强度判定确定照明和抓图模式,以及基于多特征线性加权融合策略图像质量判断的焦距调整方法,能够满足在不同光照条件和复杂设备布局下的拍摄需求,解决了人工操作绝缘杆拍摄过程中出现杆晃动情况影响图像质量的问题,提高了图像质量;在此基础上,基于异常缺陷自动检测模型,通过考虑分类损失、边界框回归损失和置信度损失,可以更好的实现不同缺陷特征的识别和分类,能够达到提高检测精度的目的,解决缺陷认定不准确的问题。
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