Device and method for detecting thickness of coating based on visual monitoring

The invention relates to the technical field of coating thickness detection, in particular to a coating thickness detection device and method based on visual monitoring. According to the invention, the coating area can be divided into a plurality of segmented areas, the coating thickness detection is carried out on the segmented areas according to the detection frequency corresponding to each segmented area, the detection range is wide, the accuracy of the detection result is ensured, the abnormal probability of the segmented areas is calculated, and the growth factor is obtained through the abnormal probability calculation. Therefore, the detection frequency of the segmented region can be calculated and adjusted again, so that the number of times of detecting the thickness of the coating is synchronously increased along with the increase of the abnormal probability, and missing detection is avoided; in addition, the defect factor corresponding to each segmented area can be calculated, the defect factors are