Design of online detection system of gathering machines based on machine vision

摘要

An online detection system is designed for gathering machines to solve the problems arise in collating. The system consists of industrial digital cameras and industrial control computer to form a distributed control system that uses Ethernet to communicate information between host computer and slave computer. Using normalized correlation algorithm for image recognition, IPC can recognize the defective product, and send signals to rejection mechanism to deliver out the unqualified signatures automatically. After repeated tests, the system can promptly identify the defective product such as mixed up signatures, missing signatures and other errors with high recognition rate, and effectively improves the quality of printed products.