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Coin edge quality detection method and system

A quality inspection method and coin technology, applied in coin inspection, handling coins or valuable banknotes, instruments, etc., can solve problems such as difficult detection, edge image distortion, etc.

Active Publication Date: 2021-06-29
ZHONG CHAO GREAT WALL FINANCIAL EQUIP HLDGCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for special-shaped (such as rectangular, fan-shaped) coins, the obtained edge images will be severely distorted, and it is difficult to effectively detect them.

Method used

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  • Coin edge quality detection method and system
  • Coin edge quality detection method and system
  • Coin edge quality detection method and system

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Experimental program
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Embodiment Construction

[0028] The technical content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Aiming at the problem that the existing coin detection device obtains the edge image of the special-shaped (such as rectangle, fan-shaped) coin is distorted, which makes it difficult to carry out effective detection, such as figure 1 As shown, the embodiment of the present invention provides a coin edge quality detection method, comprising the following steps:

[0030] Step S1 , according to the edge profile of the coin to be detected, select the detection position of the coin edge, and set the movement track control points of the coin to be tested, each detection position corresponds to a movement track control point.

[0031] In the present invention, the side profile of the coin to be tested refers to the geometric shape of the side of the coin and the anti-counterfeit features provided on the side o...

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Abstract

The invention discloses a coin edge quality detection method and system. The method comprises the following steps: S1, according to the edge contour of a to-be-detected coin, selecting detection positions of the edge of the coin, and setting motion trail control points of the to-be-detected coin, wherein each detection position corresponds to one motion trail control point; S2, according to the motion trail control point of the to-be-detected coin, adjusting each detection position on the edge of the coin to a specified position one by one so as to obtain an actual distance from each detection position to the distance measuring device; and S3, comparing the actual distance from each detection position to the distance measuring device with a preset ideal distance, and judging the edge quality of the to-be-detected coin. According to the method, the problem that effective detection is difficult due to distortion of the edge image of the special-shaped coin acquired by the existing coin detection device is solved.

Description

technical field [0001] The invention relates to a coin edge quality detection method and a corresponding coin edge quality detection system, which belongs to the technical field of coin quality detection. Background technique [0002] Before the coin leaves the factory and circulates, it is necessary to detect the front, back and edge of each coin to achieve the purpose of accurate and error-free delivery. Because the texture of the edge of the coin is more complicated, for example, the edge of some rolling coins includes the word "RMB" or a diamond-shaped mark, and the edge of some commemorative coins has textures such as silk teeth. Due to anti-counterfeiting requirements, the pattern on the edge of the coin becomes an anti-counterfeiting feature in addition to the pattern on the front and back of the coin. Therefore, in the printing and circulation process of coins, it is particularly important to effectively detect the edge quality and anti-counterfeiting features of co...

Claims

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Application Information

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IPC IPC(8): G07D5/02
CPCG07D5/02
Inventor 杨宝爵孙志锋吴天序庞文浩鞠健
Owner ZHONG CHAO GREAT WALL FINANCIAL EQUIP HLDGCO