Abstract:

As a clean and environmentally friendly green energy,solar energy has great application prospects.For various defects in the production of polysilicon solar cells,especially the low efficiency cells,the automatic detection of low-efficiency solar cells based on image processing is studied.This article first introduces the concept of polysilicon solar cells and the reasons of inefficient cells,after which a method for automatic detection of electroluminescence based on image processing is analyzed.Detection principles and detection system structure are described.The peak binarization methods for gray electroluminescence image binarization processing are studied,which avoid the given threshold binarization processing deficiencies.The algorithm's implementation process is also described.This designed automatic detection method provides theoretical basis for the detection of low efficiency solar cells.

Key words: polysilicon solar cells;electroluminescent;image processing;binarization,automatic detection