一种重型结构件喷涂涂层厚度图像在线测量方法

By using local registration and boundary cancellation techniques, the problem of inaccurate thickness assessment at the repainting boundary during the painting process of heavy structural components was solved, and precise thickness measurement and control of the repainting boundary was achieved.

CN122115427BActive Publication Date: 2026-07-17SHANXI GUANGDA HEAVY MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI GUANGDA HEAVY MASCH CO LTD
Filing Date
2026-04-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology for spraying heavy structural components, the correspondence between the image appearance features and the actual thickness at the repainting boundary is prone to instability, resulting in inaccurate local thickness assessment and difficulty in meeting the requirements of fine measurement and control.

Method used

By acquiring image sequences and thickness distributions before and after repair, local registration is performed, boundary correspondence zones are established, normal sampling lines are constructed, boundary cancellation sequences are generated, and the joint analytical model is used to output segment analysis results and thickness distribution, ultimately generating the total thickness distribution.

Benefits of technology

It enables accurate thickness measurement at the boundary of the re-repair spray, reflecting the continuous change between the old and new coating areas, and is suitable for determining the local thickness and outputting results for heavy structural components.

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Abstract

本发明公开了一种重型结构件喷涂涂层厚度图像在线测量方法,具体涉及工业视觉检测技术领域,用于解决返修补喷边界处图像外观变化与真实厚度变化难以稳定对应的问题;先获取返修补喷前的参考图像序列、与参考图像序列对应的参考厚度分布以及返修补喷后的测量图像序列,对参考图像序列与测量图像序列进行局部配准并生成边界对应带,再沿边界对应带建立法向采样线,构建对消基准并形成边界对消序列,随后输入联合解析模型得到区段解析结果和增厚量分布,最后将增厚量分布与参考厚度分布中对应位置的原有厚度逐点叠加,形成总厚度分布并输出在线测量结果。
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