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Composite high tech machine for checking and accepting bank paper

A banknote detector, a high-tech technology, applied in the fields of optics, electronics, and machinery, can solve problems such as difficulties, error color-changing ink imitation, difficult automatic continuous operation, etc., to achieve the effect of reducing labor costs and improving identification efficiency

Inactive Publication Date: 2003-10-08
BEIJING NUFRONT SOFTWARE SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is the most difficult feature for counterfeiters to imitate, even if they work harder, errors will occur (for example, the imitation of color-changing ink is extremely difficult, even with the help of modern electronic color matching technology, it is difficult to imitate the color-changing effects of all different angles)
At present, the existing banknote detection technology in the world mainly uses human eyes, or optical and chemical auxiliary means to identify optical images (its essence is optical image recognition), which is more accurate than modern digital image processing technology (essentially computer signal processing). , there is a great difference in the observation effect, and it is difficult to realize automatic continuous operation

Method used

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  • Composite high tech machine for checking and accepting bank paper
  • Composite high tech machine for checking and accepting bank paper
  • Composite high tech machine for checking and accepting bank paper

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Experimental program
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Embodiment Construction

[0022] 1. From A, convert the existing low-cost cameras on the market (such as domestic 36,000-pixel cameras) into several aggregate cameras, which are placed in different positions and different angles for different currencies to obtain holographic optical images of banknotes Record with the feature points of the color-changing ink, and convert the feature image to be recognized into a basic digital signal (USB signal or A / D converted RGB signal) that can be processed by a controllable computer. See the schematic figure 2 .

[0023] 2. By B, through the graphic processing of shaping and sampling technology, a vector signal or graphic matrix is ​​formed that not only retains the image characteristics of the banknote feature points, but also compresses the data volume (where the vector signal or graphic matrix is ​​defined according to different currency types and different image characteristics Is one of the key points of the present invention), see the schematic diagram of speci...

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Abstract

A complex high technology cash detector includes a counting device, a camera head, image process unit, matching process algorithm device, threshold analysis algorithm unit and result display, continuous counting unit and time synchronous control unit. The design comes from terrain matching tech applied in strategic missile or cruise missile ends guidance. The technology converts the discolorationink image and holographic optical image on various kinds of money the most difficult to be copied to digital images for computer process and matching process, the money to be checked and standard paper money character image then design the analysis judgment rule by fuzzy methematics.

Description

Technical field [0001] The present invention relates to the following four fields: the field of optics and electronics, the field of electronics information processing technology, the field of fuzzy mathematics and electronics information processing technology, and the mechanical field. Background technique [0002] At present, the anti-counterfeiting technology of banknotes in various countries mainly focuses on special paper (including plastic paper) and anti-counterfeiting plate making and printing. At present, large denominations of Euros, U.S. dollars and the new version of RMB mainly use color-changing ink and holographic technology. This is the most difficult feature for counterfeiters to imitate, and even if they work hard, errors will occur (for example, it is extremely difficult to imitate color-changing inks, even with modern electronic color matching technology, it is difficult to imitate the color-changing effects of all different angles). At present, the existing cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G07D7/20
CPCG07D7/121G07D7/206G06V20/95
Inventor 鲍东山
Owner BEIJING NUFRONT SOFTWARE SCI TECH