Photovoltaic cell piece surface defect detection method and device and storage medium

A photovoltaic cell and defect detection technology, which is used in optical testing of flaws/defects, measuring devices, and material analysis by optical means to achieve clear imaging results.

Pending Publication Date: 2022-03-01
苏州威华智能装备有限公司
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[0005] The present invention provides a method, device and storage medium for detecting defects on the surface of photovoltaic cells based on multiple exposures, so that the defects of photov

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  • Photovoltaic cell piece surface defect detection method and device and storage medium
  • Photovoltaic cell piece surface defect detection method and device and storage medium

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[0035] In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of the present invention are all in a simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

[0036] see figure 1 and figure 2 , figure 1 A schematic structural diagram of a photovoltaic cell surface defect detection device provided in an embodiment of the present invention, the device can be specifically based on figure 2 The method for detecting surface defects of photovoltaic cells shown in the flow chart is implemented to quickly and accurately detect defects of photovoltaic cells.

[0037] Specifically, as figure 1 As shown, the photovoltaic cell surface defect detectio...

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Abstract

The invention discloses a photovoltaic cell surface defect detection method and device and a storage medium. The photovoltaic cell surface defect detection method comprises the following steps: irradiating a photovoltaic cell to be detected in a camera obscura by using three light sources with red, green and blue light emitting colors respectively, and acquiring an image R, an image G and an image B of the photovoltaic cell irradiated by the three light sources respectively by using a camera; synthesizing the image R, the image G and the image B to obtain a three-channel color image P; and identifying the color image P so as to judge the surface defect condition of the photovoltaic cell. According to the method, the defects of the photovoltaic cell under the common illumination imaging technology can be more obviously shown when the defect detection method is used for detecting, and defect detection software can identify the defects more easily.

Description

technical field [0001] The present invention relates to the technical field of machine vision detection, in particular to a detection method, equipment and storage medium for surface defects of photovoltaic cells. Background technique [0002] In the production process of photovoltaic cell components, the production of cells is the core part of the entire production process of photovoltaic cell components. The main production processes of cells are: texturing, diffusion, wet etching, thin film deposition, electrode printing and sintering. [0003] The product quality of photovoltaic cells and the improvement of photoelectric conversion efficiency are very important. Due to the complex production process of the above-mentioned photovoltaic cell modules, surface defects such as large stains, crystal filaments, and pharmaceutical residues on the cells will inevitably occur due to machine or human factors. At this stage, the domestic market mainly relies on artificial eyes. El...

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Application Information

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IPC IPC(8): G01N21/01G01N21/88
CPCG01N21/01G01N21/8851G01N2021/0112
Inventor 谢宏威印裕
Owner 苏州威华智能装备有限公司
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