Identifying method and system for papers of value

Abstract

A value bill true or false identification method comprises: 1, using the light of at least two different wavelengths to respectively scan the surface of an object value bill, using a photoelectric sensor to receive and convert reflected light into analogue electric signals reflecting the distribution characteristic of special material in bill paper and/or surface ink, processing the analogue electric signals to obtain initial data corresponding to different wavelengths; 2, preprocessing, comparing and analyzing the initial data of at least two kinds corresponding to different wavelengths to form at least one characteristic vector group; 3, comparing at least one characteristic vector group with the corresponding characteristic vectors of a true bill, to identify true or false. A system thereof comprises a light source module, a photoelectric sensor module, a signal preprocessing module, an automatic calibration control module and a bill recognition platform. The invention adopts photoelectric colorimetric method to qualitatively and quantitatively analyze bills, to accurately identify true and false bills, thereby improving identification precision. The invention has wide application for identifying true and false bills, having strong generality.

Description

technical field [0001] The invention relates to a method and a system for identifying valuable notes, and more particularly relates to a method and a system for identifying the authenticity of valuable notes by using photoelectric colorimetry. Background technique [0002] The traditional authentication method of negotiable bills is mainly through qualitative identification such as infrared light or ultraviolet light. For example, the ultraviolet light identification method: irradiate the surface of the bill with monochromatic ultraviolet light, the real banknote does not change color, and the counterfeit banknote is fluorescent white; and then irradiates the local specific identification area of ​​the valuable note with infrared light, and the area covered by infrared ink has a high reflectivity , The reflectivity of the area not covered by infrared ink is low, so as to qualitatively identify and judge the authenticity of valuable documents. At present, the users of this b...

AI Technical Summary

Problems solved by technology

At present, the users of this bill authenticity identification device are mainly bank professionals with a certain ability to distinguish, so the function emphasizes counting and sorting, but as the production technology of fake bills becomes more and more sophisticated, this Qualitative anti-counterfeiting technology has weak anti-counterfeiting ability, and it is difficult to identify so

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