Application of High Speed Camera in Cigarette Print Monitoring System

In the early PROTOS 70 cigarette makers,the cigarettes with print defects could not be timely detected and rejected due to the lack of print monitor.Therefore,a print image monitoring system was designed on the basis of high speed camera technology.The system was composed of high speed camera,LED light source,industrial computer and PLC.The analog image signals obtained by the camera were digitized and compared with a template image,and the cigarette with a defective print would be rejected by PLC.The practical application results indicated that the system was reliable,the real time monitoring of cigarette print image was realized,the rejection accuracy reached 99.98% and consumer complaints decreased from 4-5 times per season to 0.