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Foreign matter detecting method and foreign matter detecting device

A foreign object detection and foreign object technology, which is applied in the direction of optical testing for flaws/defects, can solve the problems of large errors and high false detection rates, and achieve the effect of eliminating influence and improving detection accuracy

Active Publication Date: 2019-07-19
WUXI LEAD INTELLIGENT EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the basis of inaccurate boundary detection, the error of further boundary foreign object detection is very large, and the false detection rate is high

Method used

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  • Foreign matter detecting method and foreign matter detecting device
  • Foreign matter detecting method and foreign matter detecting device
  • Foreign matter detecting method and foreign matter detecting device

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Embodiment Construction

[0023] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. Where the following description refers to the accompanying drawings, unless otherwise indicated, equivalent numerals in different drawings indicate equivalent or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of means consistent with aspects of the present application as recited in the appended claims.

[0024] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the common meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words u...

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Abstract

The application provides a foreign matter detecting method and a foreign matter detecting device for detecting battery materials. The foreign matter detecting method comprises the following steps of acquiring an initial image of a battery material; preprocessing the initial image to obtain a preprocessed image; determining the actual boundary of the battery material according to the preprocessed image; and determining the size of the foreign matter on the battery material based on the initial image and the actual boundary of the battery material. In the application, by preprocessing the initial image, the influence of the inaccurate boundary detection on the foreign matter detection is eliminated, thereby improving the accuracy of the foreign matter detection.

Description

technical field [0001] The present application relates to the field of battery manufacturing, and in particular to a foreign matter detection method and a foreign matter detection device. Background technique [0002] The lamination of the battery pole piece needs to laminate the material on the PET film to the pole piece through the rolling roller, and due to the tension during the lamination-peeling process, the pole piece will take more material from the PET film . In addition, the small particle material on the conveying roller will also adhere to the edge of the pole piece, forming foreign matter, which will lead to a short circuit of the wound battery in severe cases. The foreign matter on the edge of the pole piece will cause cross infection between the inner and outer layers during the winding process, affecting more pole pieces. Traditional boundary detection algorithms such as the gray threshold method and the gradient method require no interference at the bounda...

Claims

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Application Information

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IPC IPC(8): G01N21/94
CPCG01N21/94
Inventor 不公告发明人
Owner WUXI LEAD INTELLIGENT EQUIP CO LTD