A pole piece surface defect visual inspection method and system based on double light source time-sharing frequency flash

By using dual-light source time-division stroboscopic technology to control the alternating illumination of low-angle and high-angle light sources, combined with a single acquisition module and defect detection model, the detection blind zone and illumination interference problems of electrode surface inspection are solved, achieving low-cost, high-efficiency full-coverage inspection.

CN122409666APending Publication Date: 2026-07-17GUANGDONG AOPUTE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG AOPUTE TECH CO LTD
Filing Date
2026-06-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electrode surface defect detection solutions suffer from blind spots due to single-angle light source detection, light interference caused by simultaneous illumination of multiple light sources, and high cost and complex structure of multi-camera solutions, making it difficult to achieve low-cost, interference-free full-coverage detection.

Method used

The dual-light source time-division stroboscopic technology is adopted to control the low-angle and high-angle light sources to light up alternately. Image data is continuously acquired at the same position of the electrode through a single acquisition module, and then split and recombined into low-angle and high-angle image data by row. These data are then input into the defect detection model for detection and fusion.

Benefits of technology

It achieves dual-angle interference-free imaging, reduces hardware costs and installation complexity, is suitable for rapid deployment on existing production lines, balances detection accuracy and production line cycle time, and achieves full-coverage scanning.

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Abstract

本发明公开了一种基于双光源分时频闪的极片表面缺陷视觉检测方法及系统,通过控制低角度光源与高角度光源交替点亮,在极片同一采集位置连续采集两行不同角度光源照射下的图像数据,经按行拆分重组后分别获得低角度图像数据和高角度图像数据,再输入缺陷检测模型进行并行检测并融合输出最终结果,从而以单采集模块、双光源的极简结构实现了双角度无干扰成像,有效克服了单一角度光源的检测盲区问题,避免了双光源同时点亮产生的光照叠加与镜面反射干扰,显著降低了硬件成本与安装复杂度,同时通过极片行进与光源交替的时序配合实现了产线速度下的连续全覆盖扫描,兼顾了检测精度与产线节拍,适用于现有极片产线的快速部署与适配。
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