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Bill authenticity identification method based on ultrasound excitation material features

An authenticity identification and ultrasonic technology, applied in the field of bill identification, can solve the problems of misjudgment, reduce the accuracy of identifying the authenticity of bills, and image analysis is difficult to achieve uniqueness, and achieve the effect of improving accuracy and identification speed.

Active Publication Date: 2015-01-14
BEIJING ZHONGKE JINCAI TECH
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Problems solved by technology

The main disadvantages of this method are: it is difficult to achieve uniqueness in the analysis of the collected images, that is, it may be misjudged. In addition, there are various external factors during the use of the tested bills, which may cause the The image changes, which reduces the accuracy of identifying the authenticity of the bill

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  • Bill authenticity identification method based on ultrasound excitation material features
  • Bill authenticity identification method based on ultrasound excitation material features

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Embodiment Construction

[0028] The bill authentication device and method based on ultrasonic excitation material characteristics provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, a bill authenticity identification device based on ultrasonic excitation material characteristics provided by the present invention includes: a controller, more than one first ultrasonic transducer for sending ultrasonic waves to the bill under test and for receiving the More than one second ultrasonic transducer for the ultrasonic echo reflected by the bill to be tested; the controller is connected with the first ultrasonic transducer through a driving circuit; the controller is connected with the second ultrasonic transducer through a signal conditioning circuit. Wherein, the controller may be a single-chip microcomputer, such as FPGA. The first ultrasonic transducer and the second ultrasonic transducer may be piezoelectri...

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Abstract

The invention provides bill authenticity identification equipment and a method based on ultrasound excitation material features. According to the invention, the ultrasound return wave of the tested bill is collected through emitting the ultrasound to the tested bill; and the authenticity of the tested bill can be judged through feature analysis for the ultrasound return wave. Therefore, the authenticity of the bill can be recognized based on the bill material rather than appearance, and the accuracy rate and recognition speed of the authenticity of the bill are improved.

Description

technical field [0001] The invention belongs to the technical field of bill recognition, and in particular relates to a bill authenticity recognition device and method based on ultrasonic excitation material characteristics. Background technique [0002] With the development of society, the proportion of bill transactions in the national economy is increasing, and the amount is sometimes very large. Therefore, the role of bills in market exchange and circulation is becoming more and more important. Therefore, its security requirements are much higher than cash transactions. [0003] In order to improve the security of bill transactions, anti-counterfeit marks are often set on the bills. Existing bill authenticity identification methods usually include the following two categories: the first category, manual direct identification based on experience: that is, to identify the authenticity by directly observing the anti-counterfeiting marks on the bill. The technology is gett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/08
Inventor 朱烨东杜江赵宝军
Owner BEIJING ZHONGKE JINCAI TECH
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