A precision hardware fatigue damage detection method and system based on visual detection

By using multispectral detection methods, combined with infrared and ultraviolet light analysis, the problem of missed detections and false alarms caused by oil film interference on the surface of precision hardware parts has been solved, achieving efficient and accurate fatigue damage detection.

CN122409655APending Publication Date: 2026-07-17GUANGZHOU AOTU PRECISION HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU AOTU PRECISION HARDWARE CO LTD
Filing Date
2026-05-12
Publication Date
2026-07-17

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Abstract

本申请涉及视觉检测技术领域，具体提供了一种方法基于视觉检测的精密五金疲劳损伤检测方法及系统，该方法包括步骤：S1、分析第一可见光图像中是否存在待验证区域，若是，则执行步骤S2，若否，则根据第一可见光图像对待检测精密五金件进行裂纹识别；S2、获取待检测精密五金件的红外图像和紫外图像；S3、针对待验证区域，根据第二裂纹识别结果、光学特性和荧光特性分析待验证区域是否存在真实疲劳裂纹；S4、针对第一可见光图像中除待验证区域以外的区域，根据根据第一可见光图像对该区域进行裂纹识别；该方法能够解决由精密五金件表面油膜导致高反光、深邃阴影和模糊纹理区域引发的裂纹检测漏检和误报问题。
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