Banknote identification method and banknote identification device

Abstract

The invention discloses a banknote recognition method. The method comprises steps as follows: banknotes are conveyed in a predetermined direction; first images with banknote images are acquired; conveying speed variation data of the banknotes are acquired in real time; the conveying speed variable data of the banknotes are correlated with the content of the first images; whether the first images correlated with the conveying speed variation data of the banknotes are abnormal images occurring after a banknote is jammed are judged according to the conveying speed variation data of the banknotes. The invention further discloses a banknote recognition device. Due to the fact that a banknote jamming detection function is added in the banknote recognition process, whether the banknotes are jammed is detected firstly, the banknote detection procedure is stopped immediately after the banknotes are jammed in a machine, a recognition algorithm for the following banknotes is not required to be carried out, the banknote recognition efficiency is improved, meanwhile, the situation of counterfeit money misjudgment caused by banknote jamming can be eliminated as well, and the counterfeit money recognition accuracy is improved. Additionally, the banknote jamming condition can be analyzed according to an output encoder periodic value, targeted optimization is realized, and the banknote jamming problem is avoided.

Description

technical field [0001] The invention relates to the technical field of banknote sorting, in particular to a banknote identification method and a banknote identification device. Background technique [0002] During the normal banknote checking process of the banknote detector, the banknotes first enter the banknote detector from the banknote inlet of the banknote detector under the drive of the transmission system. After the banknotes enter the banknote detector, the relevant sensors (such as CIS sensors, magnetic sensors, etc.) to collect banknote data. [0003] When banknotes pass through the banknote detector, they must pass through the banknote detector at a certain speed, so that the relevant sensors can normally collect the characteristic data of banknotes for the algorithm to identify banknotes and follow-up business process processing. When banknotes move abnormally in the banknote detector, such as jamming during banknote movement, the collection process of related ...

AI Technical Summary

Problems solved by technology

When banknotes move abnormally in the banknote detector, such as jamming during banknote movement, the collection process of relevant sensors will also be abnormal at this time, resulting in inaccurate banknote checking process

[0004] When the CIS sensor collects the abnormal image data when the banknote is stuck, the system will automatically judge the stuck banknote as a counterfeit banknote according to the algorithm recognition, so that the banknote with the stuck banknote will be misjudged as a counterfeit banknote, and cannot be more accurate The banknote data collected currently is caused by jammed banknotes, which brings a lot of inconvenience to the problem of manually locating banknotes.

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