A kind of intelligent cutting method and cutting system of solar cells

Abstract

The invention relates to an intelligent cutting method and system for a solar battery piece, and the system is carried out according to the following steps: after the system is installed, coordinate correction needs to be carried out once. The correction method comprises the following steps: shooting a correction plate by using a camera to obtain coordinates of correction points on an image, calculating a coordinate correction comparison table by combining actual coordinates of the correction points, and storing the coordinate correction comparison table into a computer in a file form; when the system carries out cutting work, photographing a to-be-cut solar battery piece, obtaining the correction coordinates corresponding to the coordinates of the battery piece from the coordinate correction comparison table, reconstructing the corrected image, obtaining a cutting path according to the corrected image, and cutting the solar battery piece according to the cutting path. According to thesystem, the image of the solar battery piece captured by the camera is reconstructed, and the cutting path is obtained through the reconstructed image, so that errors caused by distortion of the shotimage are avoided, and the cutting precision is effectively improved.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to an intelligent cutting method and cutting system for solar cells. Background technique [0002] Solar cells are based on very thin silicon plates, which is a very brittle material. Defects such as burrs, cracks and small edge defects are prone to occur during production and processing, which seriously affect the performance of the product. For a formed solar panel, if the entire panel is discarded due to some small defects, it will cause great waste. Therefore, when cutting the solar panel into pieces, attention should be paid to avoiding defective parts. It is also necessary to make the area of ​​the usable part after cutting as large as possible, which will save materials and reduce costs. In addition, smaller size cells are sometimes required in production to complete the assembly of special cell panels. [0003] If the analysis and cutting are carried out according to the genera...

AI Technical Summary

Problems solved by technology

[0003] If the analysis and cutting are carried out according to the general computer video processing method, first, the resolution of the camera is required to be high, and second, the field of view is small to achieve high precision. At the same time, due to the physical structure of the camera, the scene distortion program far away from the center of the axis is large. Moreover, it is an irregular nonlinear transformation, which causes the image analysis data to be inconsistent with the cutting data, which is easy to cause cutting errors, resulting in the accuracy not meeting the production requirements.

Second, the application of ultra-high-resolution cameras is expensive, and the computing equipment required to process images has high performance, and the overall equipment price has risen. Third, because the cutting plane, camera plane and laser machine plane are difficult to achieve consistency, the cutting data and the actual cutting plane The position is inconsistent, resulting in cutting errors and failing to meet production requirements

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