The photovoltaic industry has always been a battlefield for competing technological strength, and it is also a strategic emerging industry strongly supported by the country, receiving key support from national industrial policies. In this context, on the road to transformation from "Made in China" to "Intelligent Manufacturing in China", the proportion of the photovoltaic industry continues to increase, and localization development is rapid. To maintain the leading position in the photovoltaic industry, the most fundamental step is to improve production efficiency and product quality, and take the first step solidly. As is well known, there are numerous production and processing stages for photovoltaic cells, which inevitably lead to various defects that seriously affect the performance and stability of the cells. Therefore, defect detection of photovoltaic cells during the production process is very important.
Solution: Wave Creation Visual Inspection System
Industrial intelligence independently developed by BotrongAIThe detection system provides full process functions from data collection, cleaning, labeling to model training, deployment, and data statistics, forming a professional, systematic, and stable visual inspection solution designed specifically for the photovoltaic industry.
solar cellELdetection
Special imaging can effectively detect issues such as hidden cracks, fragments, holes, broken grids, contamination, welding defects, foreign objects, scratches, and broken edges and corners in the semi-finished and finished photovoltaic cell modules before and after series welding, stacking, lamination, and packaging.
Real time diameter measurement of monocrystalline silicon
Monocrystalline silicon is a lively non-metallic material mainly used in the solar photovoltaic industry and semiconductor materials. The camera captures video images from the monocrystalline silicon growth furnace, locates its edges through a series of image algorithms, and further calculates the diameter of monocrystalline silicon in the equal diameter stage. The system sends the diameter digital quantity to the converter, and then sends the converted analog quantity to the main control system for judgment. The actuator adjusts the lifting speed based on the judgment result. Real time visual diameter measurement is used to make the growth and diameter measurement of single crystal silicon more accurate and reliable.
String welding inspection
In the early stage of string welding, locate the position of the battery cell, guide the robot to grab the battery cell, and detect defects such as edge damage, surface fragments, and dirt on the battery cell. After welding, use multiple cameras to inspect the front and back of the battery cells. Detect front welding deviation (exposed white), back welding deviation, edge damage, cracking, short circuit, string length, string arc, etc.
Visual positioning detection through slicing
High precision industrial camera, professional customized visual positioning software, automatic captureCCDFeature targets in the field of view are used for position calculation correction, precise positioning of battery cells, and guidance of laser cutting. Effectively solve the problem of relative positioning deviation of fixtures in laser processing and improve processing accuracy.
