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Coin authenticating device

A coin and counterfeit detection technology, which is applied in the direction of coin inspection, processing coins or valuable banknotes, instruments, etc., can solve the problems of high coin forgery and false positive rate, difficult processing of related signals, and easy to be subject to external interference. Simple, consistent results

Inactive Publication Date: 2017-12-01
CHINA JILIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

There are still many invention patents and utility models based on the same principle to realize counterfeiting of coins, but this method of counterfeiting based on the coin’s electromagnetic field disturbance characteristics around the induction coil has strict requirements on the speed and position of the coin passing near the coil. Difficult signal processing, susceptible to external interference, resulting in a high misjudgment rate of coin identification

Method used

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  • Coin authenticating device

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Embodiment Construction

[0014] Such as figure 1 As shown, this specific embodiment includes a two-dimensional laser scanning sensor 8 , a heating source module 4 , an infrared camera module 5 , a computer subsystem 9 , a frame, a conveying device 3 , a coin storage bucket 1 , and a coin arrangement mechanism 2 . The two-dimensional laser scanning sensor 8, the heating source module 4 and the infrared thermal imager module 5 of the device are respectively connected with the computer subsystem 9 to realize the electrical connection of the signal line and the control line.

[0015] The two-dimensional laser scanning sensor 8 of this specific embodiment, the heating source module 4, the thermal imager module 5, the transmission device 3, the coin storage bucket 1, and the coin arrangement mechanism 2 are all installed and fixed on the frame, wherein the two-dimensional laser scanning The sensor 8 , the heating source module 4 and the thermal imaging camera module 5 are all located above the conveying dev...

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Abstract

A coin authenticating device is provided which includes a two-dimensional laser scanning sensor, a heating source module, an infrared thermal imager, a computer subsystem, a rack, a transmission device, a coin storage hopper and a coin arranging mechanism. The two-dimensional laser scanning sensor, the heating source module and the infrared camera module of the device are connected with the computer subsystem respectively. In order to achieve the purpose of coin authentication, the device realizes the authenticity discrimination of the coin from two aspects with one as the coin size and the other as the material, comprising: using the two-dimensional laser scanning sensor to continuously measures the height, the diameter and the three-dimensional topography of the coin on the transmission device; completing the detection of the geometric features of the coin; controlling by the computer subsystem the heating source module to heat the coin arranged on the transmission device, and acquiring the temperature change data of the coin surface detected by the infrared thermal imager to complete the coin material detection. There is no prior order requirement for these two steps. The device of the invention not only can detect the size and material of the coin, but also can detect the wearing condition of the coin.

Description

technical field [0001] The patent of the present invention relates to a coin authenticating device, in particular to a coin authenticating device based on a two-dimensional laser scanning sensor and infrared thermal wave detection. Background technique [0002] Currently, there are a large number of coins in circulation in various countries around the world. Many lawbreakers forged coins to make huge profits, which seriously disrupted the financial order and caused huge property losses to the country and others. Existing coin counterfeiting devices are generally based on inductive coils to detect the electromagnetic characteristics of coins, thereby judging the authenticity of coins. Invention patent "Coin Authenticity Intelligent Detection Device and Detection Method Based on Pulse Excitation" (Application No. 201410035100.8) produces different induced voltage signals according to changes in coin material, thickness, and pattern. The excitation signal used is a multi-frequ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D5/02G07D5/00
CPCG07D5/02G07D5/005
Inventor 王凌平慈草高建秋陈锡爱徐红伟
Owner CHINA JILIANG UNIV
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