Positioning calibration method of surface mounting equipment, equipment, medium and product

By combining image recognition models and iterative calculations with multi-source image fusion technology, the problem of inaccurate positioning and matching of surface mount equipment is solved, and high-precision positioning calibration is achieved in complex environments.

CN120659248AActive Publication Date: 2025-09-16INSPUR SUZHOU INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202511164846.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2025-09-16
Estimated Expiration
2045-08-20

AI Technical Summary

Technical Problem

During the positioning and matching process, existing surface mount equipment has inaccurate positioning and matching due to different environmental conditions, irregular equipment placement, irregular component shapes, and point obstruction.

Method used

An image recognition model is used to identify the pin positions of circuit board pads and components to be mounted, and the confidence levels are recorded. Through iterative calculation and confidence weighting, the influence of low-confidence position detection results on spatial mapping parameters is reduced. Combined with multi-source image fusion and an improved YOLOv7 network model, the accuracy of positioning and matching is improved.

Benefits of technology

It improves the positioning and matching accuracy of surface mount equipment, enhances the anti-interference ability in complex environments and irregular conditions, and ensures the stability and reliability of spatial mapping parameters.

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Abstract

The invention discloses a positioning calibration method of surface mounting equipment, equipment, a medium and a product, and relates to the technical field of printed circuit boards, a first position of a bonding pad on a circuit board and a second position of an element pin of an element to be mounted are obtained through recognition by using an image recognition model, the confidence coefficient is recorded, and when matching calculation is carried out, the positioning calibration accuracy is improved. And carrying out position transformation calculation on the positions of the bonding pad and the element pin matched in the current iteration, calculating a transformed position error in combination with the confidence coefficient, and outputting a final matching result of the bonding pad and the element pin and a corresponding final space mapping parameter after a first iterative calculation condition is met. According to the method, the influence of a low-confidence-coefficient position detection result on space mapping parameter calculation is effectively reduced, the stability and reliability of the final space mapping parameter are ensured, compared with traditional position error calculation, the method has higher anti-interference capability, and the accuracy of positioning matching of high surface mounting equipment is improved.
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