PCB positioning identification system and method based on image processing

The invention relates to a PCB positioning identification system and method based on image processing, and relates to the technical field of circuit board processing, and the system comprises an image acquisition identification module, a conveying belt assembly, a board body jacking assembly, a board body fixing assembly and a gas conveying assembly. The plate body fixing assembly comprises a bearing frame body, a first roller, a second roller and a bearing belt body; one end of each of the first roller and the second roller is positioned on the bearing frame body and is positioned above the conveying belt assembly; the bearing belt body is of a rectangular belt-shaped structure, and the two ends are located on the first roller and the second roller correspondingly. A row of positioning holes used for bearing and positioning the annular body are formed in the bearing belt body; the positioning ring body is a rubber hollow soft ring, and the longitudinal section of the positioning ring body is B-shaped; the PC