Online visual detection method for appearance defects of compressor wiring structure

By constructing a reflective track zone and a three-dimensional anti-reflection channel, combined with dynamic optical control, the problem of failure to recognize the main label characters of the compressor wiring structure was solved, achieving efficient image acquisition and product traceability, and improving the automation and quality control of the production line.

CN121334487AActive Publication Date: 2026-01-13LINGHU INTELLIGENT CO LTD
3 Cites 2 Cited by

Patent Information

Application Number
CN202511887037.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-01-13
Estimated Expiration
2045-12-15

AI Technical Summary

Technical Problem

In existing technologies, the main label characters on the compressor wiring structure fail to be recognized due to the blind spot of the metal casing's reflection, making it impossible to extract complete label information. This results in missing product traceability information and poses a quality risk of intercepting or scrapping the entire batch of products.

Method used

By extracting reflective streamlines through low-angle light scanning, a reflective trajectory band is generated, a dark window and a three-dimensional anti-reflection channel are constructed, the attitude of the camera and the light source and the beam slippage are controlled, the reflective closure surface is destroyed, and combined with the polarization shutter and the micro-aperture adjustment action, a shooting window that meets the image sharpness requirements is generated.

Benefits of technology

It significantly improves the clarity and recognition rate of character images and the success rate of main label recognition, ensures the complete traceability of compressor batch information, reduces the recognition failure rate and manual re-inspection rate, and enhances the level of automation and quality control capabilities.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses an online visual detection method for appearance defects of a compressor wiring structure, and relates to the technical field of machine visual detection and intelligent manufacturing, and the method comprises the following steps: before a robot enters a supplementary shooting area, scanning a compressor shell through low-angle light, extracting a continuous reflection streamline formed on a metal surface, marking a reflection strong point, and carrying out the detection of the appearance defects of the compressor wiring structure; and a reflective track band is generated as a path reference for image acquisition. Through operations such as dynamic scanning, reflection-avoiding modeling and circular scanning linkage, a closed-loop control strategy is constructed, metal reflection is actively recognized and avoided, character definition and recognition stability are improved, compressor batch tracing completeness is ensured, the recognition failure rate and the manual recheck rate are remarkably reduced on the premise of not influencing the rhythm, and the compressor batch tracing efficiency is improved. And the detection automation and quality control capability is improved.
Need to check novelty before this filing date? Find Prior Art