Air conditioner plastic water pan grid glue shortage detection method and system based on corner detection

Abstract

The invention relates to the technical field of artificial intelligence, in particular to an air conditioner plastic water pan grid glue shortage detection method and system based on corner detection. According to the method, grid angular points in a water pan image are detected. And classifying according to the coordinates of the grid angular points to obtain a plurality of grid angular point groups and corresponding grid vertex areas. And obtaining a grid analysis region between the grid vertex regions. Pixel points of a grid line category in the grid analysis area are obtained through the pixel value features, and the analysis confidence coefficient of the grid analysis area is obtained according to the number of the pixel points of the grid line category and the average pixel difference between the grid line category and other categories. And obtaining a pixel mutation degree according to the pixel difference between each pixel point in the grid analysis region and other pixel points in the neighborhood of the pixel point, and obtaining a glue shortage degree of the grid analysis region by combining the analysis confidence coefficient. According to the method, the glue shortage degree with high reference is obtained by combining the pixel features of glue shortage with the confidence coefficient of each region, and accurate and simple glue shortage detection is realized.

Description

technical field [0001] The invention relates to the technical field of artificial intelligence, in particular to a method and system for detecting the lack of glue in an air-conditioning plastic water tray grid based on corner point detection. Background technique [0002] The plastic water tray of the air conditioner external unit can export the frosting water. The water tray of the air conditioner external unit is hung on the air conditioner external unit, so the air conditioner water tray needs to have a certain bottom support. The air conditioner plastic water tray is on the water tray There is an extra grid at the bottom to provide bottom support, making it not easy to deform and prolonging the service life. [0003] During the production process of the air-conditioning plastic water tray, there will be a lack of glue in the grid at the bottom of the product, resulting in uneven support at the bottom of the water tray, prone to deformation, and resulting in substandard ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the lack of glue detection on the grid through the threshold segmentation method is easily disturbed by noise and light, and the gray threshold needs to be manually set, and the glue shortage detection of the grid lines is carried out through the Hough line detection. The Hough straight line can only ensure that multiple pixels are on the same straight line, but it cannot guarantee that the grid lines on the straight line are continuous and prone to misjudgment

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