Quality analysis method and system based on machine vision in new energy battery manufacturing

Abstract

The invention relates to a quality analysis method and system based on machine vision in new energy battery manufacturing. The invention aims to provide a quality analysis method and system based on machine vision in new energy battery manufacturing so as to detect the coating condition of a pole piece on line in real time, thereby ensuring the product quality. According to the technical scheme, the method comprises the following steps: S1, acquiring front and back images of a product; S2, finding out initial approximate position areas of the coating areas on the front and back images of the product through an image pyramid algorithm; S3, performing Gaussian smoothing filtering once in the approximate position area to remove noise signals; s4, calculating edge images in the X direction andthe Y direction of the coating area by using a Prewitt operator; S5, calculating a gradient direction and a derivative of each pixel point by using the edge values in the X direction and the Y direction; S6, according to the gradient direction and the derivative, pixels with small edge response are removed, and a continuous skeleton line with the maximum edge response is left. The method is suitable for the field of product quality detection.

Description

technical field [0001] The invention relates to a quality analysis method and system based on machine vision in the manufacture of new energy batteries. It is suitable for the field of product quality inspection. Background technique [0002] The key processes in the manufacture of new energy batteries include the manufacture of insulating diaphragms, copper foil pole pieces, and aluminum foil pole pieces. Among them, the manufacture of pole pieces using the interval coating process is the most complicated and has the highest quality requirements. Its quality control involves different areas (coating area and Electrode area) size measurement and control, synchronous consistency control of upper and lower sides coating, etc. [0003] Due to the high-speed transmission of products on the production equipment, the traditional measurement method requires the production line to stop and use tools to measure specific areas; the efficiency is low, which affects the production capa...

AI Technical Summary

Problems solved by technology

[0003] Due to the high-speed transmission of products on the production equipment, the traditional measurement method requires the production line to stop and use tools to measure specific areas; the efficiency is low, which affects the production capacity of the production line, and only a small amount of random inspection is possible, and the production line is abnormal can not be found in time

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