Device and method for detecting and discriminating bank notes

Abstract

The invention discloses a device and a method for detecting and identifying a bank bill. According to a back bill detecting and identifying device, a control processing module is connected with a motor of a drive module in a mechanically-detecting module; the control motor is opened or closed to receive information of each sensor so as to be compared and analyzed; the control processing module is also connected with a camera module and a light source module at the same time; and the opening / closing of each camera and each light source is controlled according to a set program to acquire a bill image under various light sources for analysis. The identifying method comprises three identifying levels, wherein the first level is to identify the truth of the bill and detect and identify the truth of two-color cellosilk; the second level is to check whether various issue contents on the bill meets the standard and whether the bill is falsified by means of patching, altering and the like; and the third level is to detect and identify whether the bill actually exists. The detecting and identifying device is simple to operate and complete in detection items; the detection method is easy, feasible and obvious in detection results; and the detection results are accurate and reliable.

Description

technical field [0001] The invention relates to a detection and identification device and method, in particular to a detection and identification device and method for bank notes. Background technique [0002] There are three levels of counterfeiting in the bills currently in circulation. The first level of counterfeiting is based on the counterfeiter’s information on certain issued and circulated bills (that is, the information on the cloned bills), the type of the manufactured and cloned bills, The bills with the exact same line and number are then issued with the same content as the cloned bills, and they go to the bank to defraud or transfer funds. We call this fake method "fake cloning". The second level of counterfeiting is to use a completely real blank bill, by changing the number of the bill to make it the same as the number of the cloned bill, and then fill in and issue the same content as the cloned object, and then go to the bank to cash or transfer funds ; or ...

AI Technical Summary

Problems solved by technology

Obviously, if the visual method is still used, only the ink of the bill and the anti-counterfeiting technology of the printing level are identified, and the anti-counterfeiting ability of the bill anti-counterfeiting technology cannot be fully utilized.

[0004] Some bill identification devices currently in circulation also use additional magnetic heads and manual friction to detect the magnetism of the security thread, but this method cannot detect the magnetic code of the security thread, let alone the electrical code of the security thread; Installing a laser diode to irradiate the bill number interval is used to detect the laser up-conversion ink. There are two problems in this method. One is that after the color of the ink passes through the camera, it is easy to produce distortion and color cast due to the interference of the light emitted by the laser diode. The second is this kind of open structure, the laser of the laser diode will directly enter the eyes of the operator, and long-term use will cause damage to the user's vision

[0005] The bill identification equipment currently in circulation also uses a complete machine-testing organization to detect and identify the machine-tested anti-counterfeiting features of bank bills. However, the traditional method of manual identification of video images is still used for the written and issued content of bills. There are too many human factors in this method of manual identification of video images

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