SYSTEM AND METHOD FOR COMBINED OPTICAL AND ULTRA SONIC DETECTION OF BANK NOTES

摘要

Methods and systems for automated detection of a transparent gap present between subsequent bank notes undergoing high-speed processing are disclosed. A system for distinguishing between bank notes in a bank note processing machine comprises a conveyance device for transporting a bank note along a transport path and a detector comprising an optical sensor and an ultrasonic sensor disposed at a desired location along the path. The optical sensor identifies a transparent region at the desired location and the ultrasonic sensor determines if the transparent region corresponds to a transparent gap.

主权项

1. A system for distinguishing between bank notes in a bank note processing machine comprising:
a conveyance device for transporting a bank note along a transport path; a detector comprising an optical sensor and an ultrasonic sensor disposed at a desired location along the path;
wherein the optical sensor identifies a transparent region at the desired location, andwherein the ultrasonic sensor determines if the transparent region corresponds to a transparent gap.