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Battery coating defect detection method and device and storage medium

A defect detection and coating technology, applied in the field of image processing, can solve problems such as increased labor costs, low efficiency, and inability to detect coating defects in time, so as to improve stability and robustness, strengthen defect recognition performance, and improve The effect of accuracy

Pending Publication Date: 2021-11-02
SHENZHEN HUAHAN WEIYE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, for the detection of coating defects, the common method is to achieve it through manual observation. When a large defect is found, the coating line is stopped, and the position of the defect is manually marked for subsequent processing; this traditional method Manual inspection methods are not only inefficient, but also increase labor costs. In addition, people are prone to visual fatigue and cannot find all coating defects in time, or smaller defects are easily overlooked
Therefore, the manual detection method of battery coating defects has been unable to meet the needs of large-scale production of battery plates, nor can it guarantee the coating quality of battery plates

Method used

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  • Battery coating defect detection method and device and storage medium
  • Battery coating defect detection method and device and storage medium

Examples

Experimental program
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Embodiment 1

[0053] Please refer to figure 1 , this embodiment discloses a battery coating defect detection device, which mainly includes a rotating mechanism and a detection mechanism.

[0054] Wherein, the rotating mechanism includes a plurality of rollers (such as reference numerals 101-110), and the battery coating L is wound on the plurality of rollers, and with the rotation of the rollers, the battery coating L contacting the rollers is continuously carried out. transfer. Among them, the rollers 101, 102, 103, 104, 105, 106 constitute the direction adjustment mechanism of the battery coating L, which can guide the battery coating L to be transferred along the preset travel direction; the rollers 107, 108, 109, 110 constitute the battery coating L. The deviation correction adjustment mechanism of the coating L can correct the position deviation of the battery coating L during the transfer process.

[0055] Wherein, the detection mechanism includes a light source 121 and a camera 122...

Embodiment 2

[0061] Please refer to image 3 , this embodiment discloses a defect detection method for battery coating, which mainly includes steps 100-400, which will be described respectively below.

[0062] Step 100, acquiring the image to be inspected of the battery coating. for example figure 1 The central processor 14 receives from the camera 122 and the camera 132 the images to be detected generated by the cameras themselves.

[0063] Step 200, performing region positioning on the image to be detected to obtain at least one coating region and / or at least one substrate region.

[0064] Since there is a short substrate area between the coated areas of the battery as an interval, and the coated area and the substrate area have significantly different imaging characteristics, it is necessary to locate the image to be detected in order to find the image to be detected The coating area and / or the substrate area in the system, so that different image features are analyzed for different ...

Embodiment 3

[0151] Please refer to Figure 11 , on the basis of the battery coating defect detection method disclosed in Embodiment 2, this embodiment discloses a defect detection device, which mainly includes a camera 51, a processor 52 and a display 53, which will be described separately below.

[0152] The camera 51 is used to obtain the image to be inspected of the battery coating by taking an image. The camera 51 here can be figure 1 The camera 122 or camera 132 in the battery can realize real-time image capturing on the coated surface of the battery, and each frame of image formed by image capturing is used as an image to be detected.

[0153] The processor 52 is connected with the camera 51, and is used to detect the image to be inspected by the defect detection method disclosed in the first embodiment, and obtain defects and defect classification results in the image to be inspected. It can be understood that the processor 52 can be a CPU, GPU, FPGA, microcontroller or digital i...

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Abstract

The invention relates to a defect detection method and device for battery coating and a storage medium. The defect detection method comprises the steps of acquiring a to-be-detected image of battery coating, wherein at least one coating area and / or at least one substrate area are / is obtained through area positioning; detecting image features of the coating area to analyze and obtain a first defect existing in the coating area, and / or detecting image features of the substrate area to analyze and obtain a second defect existing in the substrate area; and carrying out feature classification to obtain corresponding defect classification results. According to the technical scheme, defects existing in different areas are analyzed by distinguishing the coating area and / or the substrate area in the image, so that the stability and robustness of battery coating defect detection are improved; besides, in the feature classification of the first defect and / or the second defect, the classification result of the defect is obtained according to the gray and texture features presented by the defect, so that the defect identification performance for battery coating can be enhanced, and the accuracy of defect classification can be improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a battery coating defect detection method and device, and a storage medium. Background technique [0002] With the continuous development of science and technology and the continuous improvement of people's living standards, batteries have entered various fields such as work and life. At present, in order to adapt to the sharp increase in battery demand, most battery manufacturers are increasingly widening and speeding up the production of battery plates, and coating operations are required during the production of battery plates. Inspection is an important link to ensure the quality of the plate. [0003] At present, for the detection of coating defects, the common method is to achieve it through manual observation. When a large defect is found, the coating line is stopped, and the position of the defect is manually marked for subsequent processing; this trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/12G06T7/13G06T7/136G06K9/46G06K9/62G06N3/04G06N3/08
CPCG06T7/0004G06T7/136G06T7/12G06T7/13G06N3/08G06T2207/20081G06T2207/20016G06N3/045G06F18/2411G06F18/2415
Inventor 杨洋
Owner SHENZHEN HUAHAN WEIYE TECH