Glass coating surface defect on-line detection device and defect classification and identification method

The invention provides a glass coating surface defect online detection device and a defect classification and identification method, and belongs to the technical field of glass detection. The glass coating surface defect online detection device comprises a line light source module, an imaging module and a terminal data processing module connected with the output end of the imaging module, the width of light emitted by the line light source module is not larger than the thickness of glass, the light emitted by the line light source module forms reflected light after being reflected by the glass, and the terminal data processing module is connected with the output end of the imaging module. The imaging module can receive reflected light reflected by the coated surface of the upper surface of the glass, the reflected light of the lower surface of the glass is arranged outside the receiving range of the imaging module, and the output end of the imaging module judges whether the coated surface of the glass has def