Labeling quality detection method

Abstract

The invention relates to a labeling quality detection method used for carrying out qualified detection on an automatically-pasted label. The labeling quality detection method comprises following steps of carrying out image acquisition on the automatically-pasted label; carrying out initial processing on the acquired image; carrying out presence detection on the processed image, judging whether the label exists or not, entering the next step when the label exists, and determining the label to be unqualified when the label does not exist; carrying out character detection on the processed image, judging whether the character in the image is consistent with the specified character of the label, indicating the label to be qualified when the character in the image is consistent with the specified character of the label, and indicating the label to be unqualified when the character in the image is not consistent with the specified character of the label. Compared with the prior art, the labeling quality detection method is advantaged by being convenient for detection, accurate in examination, low in cost and convenient to implement and the like.

Description

technical field [0001] The invention relates to the field of automation, in particular to a detection method for labeling quality. Background technique [0002] Labeling is to paste rolls of self-adhesive paper labels (paper or metal foil) on PCBs, products or specified packaging. Currently, it is often achieved by labeling machines. Labeling machines are an integral part of modern packaging. At present, the types of labeling machines produced in my country are gradually increasing, and the technical level has also been greatly improved. It has changed from the backward situation of manual and semi-automatic labeling to the pattern of automated high-speed labeling machines occupying the vast market. With the wide application of labeling machines, the accuracy detection of labeling machines is becoming more and more important. The existing labeling detection is mostly done manually, which requires a lot of time and labor, and also reduces the degree of automation of the prod...

AI Technical Summary

Problems solved by technology

With the wide application of labeling machines, the accuracy detection of labeling machines is becoming more and more important. The existing labeling detection is mostly done manually, which requires a lot of time and labor, and also reduces the degree of automation of the production line.

[0003] Patent CN104118609A provides a labeling quality detection method and device, which realizes the detection of labeling quality through a series of processes such as labeling image acquisition, grayscale processing and grayscale feature extraction and matching. However, this method requires all collected It takes a long time to perform grayscale feature extraction and matching on all received images, and feature matching is also required for unsuccessfully labeled images, resulting in a waste of time and workload.

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