CN102842165B - Device and method for detecting side surfaces of coins - Google Patents
Device and method for detecting side surfaces of coins Download PDFInfo
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- CN102842165B CN102842165B CN201210345009.7A CN201210345009A CN102842165B CN 102842165 B CN102842165 B CN 102842165B CN 201210345009 A CN201210345009 A CN 201210345009A CN 102842165 B CN102842165 B CN 102842165B
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Abstract
The invention relates to a device and a method for detecting the side surfaces of coins. The device comprises a camera or a lens, a supplementary light source, a back light source, a tested-coin table, an aluminium base, a diffusion rod and a curved-surface reflecting mirror, wherein the aluminium base is divided into three parts, namely an upper layer base, an intermediate layer base and a lower layer base; the diffusion rod is fixed on the upper layer base; the supplementary light source is embedded between the upper layer base and the diffusion rod; the curved-surface reflecting mirror is mounted on the intermediate layer base; the back light source is embedded into the lower layer base; and tested coins are placed on the tested-coin table between the intermediate layer base and the lower-layer base. According to the invention, the machine vision technology is adopted to process real-time images produced by products; various precise technologies are applied in one equipment, and together with the different light sources and repeated acquisition of the camera, so that various detections including invisible carving and goodness fit detections are realized with less cameras; therefore, the production efficiency is improved, and any damage can not be caused to the product.
Description
Technical field
The present invention relates to a kind of Coin detecting equipment and method thereof, particularly relating to coin side pick-up unit and the method thereof of a kind of homogeneity for detecting coin or authenticity.
Background technology
Coin circulation during current China produces mainly contains three kinds: be unitary coin respectively, five jiaos of Bi Heyi angle coin.In addition, the commemorative coin of some is also had.Because Chinese population quantity is many, coin circulation quantity is large, so adopt the coinage of robotization and silver coin testing process to be the only ways of enhancing productivity.Along with the raising of national power, people are also more and more higher to the currency quality requirements representing national image, along with the raising of these coin manufacturing process, also new problem is brought to the detection technique of coin, current many Coin detection devices can only detect the front of coin, be inconvenient to the side detecting coin, adopted manual detection in the past, there is the problems such as examination criteria disunity, labour intensity is large, efficiency comparison is low, human cost is high.Therefore, the coin side pick-up unit wanting a kind of homogeneity for detecting coin or authenticity is badly in need of.
Summary of the invention
For the problems referred to above, fundamental purpose of the present invention is to provide coin side pick-up unit and the method thereof of a kind of homogeneity for detecting coin or authenticity.
The present invention solves above-mentioned technical matters by following technical proposals: a kind of coin side pick-up unit, described device comprises camera or camera lens, supplementary lighting sources, back side light source, tested coin platform, aluminum base, diffusion rod, curved reflector, described aluminum base is divided into three parts, be respectively upper strata base, middle layer base and lower base, it is a threaded adjusting region that can regulate the spacing of upper strata base and middle layer base between described upper strata base and middle layer base, described camera system is fixed on shooting support, described diffusion rod is fixed on the base of upper strata, supplementary lighting sources is embedded between upper strata base and diffusion rod, described curved reflector is arranged on the base of middle layer, described lower base has been embedded in back light, tested coin is placed on the tested coin platform that arranges between middle layer base and lower base, surrounding's symmetric position of described tested coin is provided with a pair symmetrical light sources sensor.
In specific embodiments of the invention, described camera or be provided with the light path strengthening anti-light disturbance ability between camera lens and upper strata base.
In specific embodiments of the invention, described camera or camera lens are camera system.
In specific embodiments of the invention, described camera system is area array CCD camera and high-resolution lens.
In specific embodiments of the invention, described supplementary lighting sources is with the LED of annular array arrangement, and back light is also with the LED of annular array arrangement.
In specific embodiments of the invention, described curved reflector is oval calotte.
In specific embodiments of the invention, described tested coin platform is clear glass.
In specific embodiments of the invention, surrounding's symmetric position of described tested coin is installed a pair and whether is placed on the middle symmetrical light sources sensor of tested coin platform for detecting tested coin.
A kind of method utilizing said apparatus to detect coin side, described method comprises the steps: that bottom to be projected tested coin by back light, the LED that top arranges with annular array is for supplementary lighting sources, the illuminating ray that supplementary lighting sources sends becomes the reflection ray of soft even light after oval calotte catoptron to tested coin side by diffusion clavate, and the reflection ray of tested coin side is taken pictures or lens imaging by camera.
In specific embodiments of the invention, the point-foussed striated defect detecting coin side after utilizing oval calotte to reflect, regulates threaded adjusting region, can focus, thus meets the requirement detected light source.
Positive progressive effect of the present invention is: coin side pick-up unit provided by the invention and method thereof have the following advantages:
The present invention adopts machine vision technique, the realtime graphic of production is processed, multiple accurate technology is applied in an equipment, coordinate different light sources, camera multi collect, realize with a small amount of camera the multiple detection comprising stealthy engraving and goodness of fit detection, invention increases production efficiency, can not cause any harm to product simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Present pre-ferred embodiments is provided, to describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.As shown in Figure 1: the present invention includes camera or camera lens 1, supplementary lighting sources 2, back side light source 3, tested coin platform 4, aluminum base 5, diffusion rod 6, curved reflector 7, aluminum base 5 is divided into three parts, be respectively upper strata base 51, middle layer base 52 and lower base 53, it is a threaded adjusting region 8 that can regulate the spacing of upper strata base 51 and middle layer base 52 between upper strata base 51 and middle layer base 52, camera system 1 is fixed on shooting support, diffusion rod 6 is fixed on upper strata base 51, supplementary lighting sources 2 is embedded between upper strata base 51 and diffusion rod 6, curved reflector 7 is arranged on middle layer base 52, lower base 53 has been embedded in back light 3, tested coin 10 is placed on the tested coin platform 4 of setting between middle layer base 52 and lower base 53, surrounding's symmetric position of tested coin 10 is provided with a pair symmetrical light sources sensor 9.Camera or be provided with the light path strengthening anti-light disturbance ability between camera lens 1 and upper strata base 51.
In specific embodiments of the invention, camera or camera lens 1 are camera system, and camera system is area array CCD camera and high-resolution lens.
In specific embodiments of the invention, supplementary lighting sources 2 is with the LED of annular array arrangement, and back light 3 is also that tested coin platform 4 is clear glass, and curved reflector 7 is oval calotte with the LED of annular array arrangement.
A kind of method utilizing said apparatus to detect coin side, method comprises the steps: that bottom to be projected tested coin by back light 3, the LED that top arranges with annular array is for supplementary lighting sources 2, the illuminating ray 12 that supplementary lighting sources 2 sends becomes the reflection ray 11 of soft even light after oval calotte catoptron to tested coin side by diffusion clavate, the reflection ray 11 of tested coin side is taken pictures or lens imaging by camera, the point-foussed striated defect detecting coin side after utilizing oval calotte to reflect, regulate threaded adjusting region 8, can focus, thus meet the requirement detected light source.
Whether a pair symmetrical light sources sensor 9 that symmetric position is installed around tested coin 10 is placed on the centre of tested coin platform 4 for detecting tested coin 10.
The present invention adopts machine vision technique, the realtime graphic of production is processed, multiple accurate technology is applied in an equipment, coordinate different light sources, camera multi collect, realize with a small amount of camera the multiple detection comprising stealthy engraving and goodness of fit detection, invention increases production efficiency, can not cause any harm to product simultaneously.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. a coin side pick-up unit, it is characterized in that: described device comprises camera or camera lens (1), supplementary lighting sources (2), back side light source (3), tested coin platform (4), aluminum base, diffusion rod (6), curved reflector (7), described aluminum base is divided into three parts, be respectively upper strata base (51), middle layer base (52) and lower base (53), it is a threaded adjusting region (8) that can regulate the spacing of upper strata base (51) and middle layer base (52) between described upper strata base (51) and middle layer base (52), described camera or camera lens (1) are fixed on shooting support, described diffusion rod (6) is fixed on upper strata base (51), supplementary lighting sources (2) is embedded between upper strata base (51) and diffusion rod (6), described curved reflector (7) is arranged on middle layer base (52), described lower base (53) has been embedded in back light (3), tested coin (10) is placed on the tested coin platform (4) of setting between middle layer base (52) and lower base (53), surrounding's symmetric position of described tested coin (10) is installed a pair and whether is placed on the middle symmetrical light sources sensor (9) of tested coin platform (4) for detecting tested coin (10), described camera or be provided with the light path strengthening anti-light disturbance ability between camera lens (1) and upper strata base (51).
2. coin side according to claim 1 pick-up unit, is characterized in that: described camera or camera lens (1) are camera system.
3. coin side according to claim 2 pick-up unit, is characterized in that: described camera system is area array CCD camera and high-resolution lens.
4. coin side according to claim 1 pick-up unit, is characterized in that: described supplementary lighting sources (2) is with the LED of annular array arrangement, and back light (3) is also with the LED of annular array arrangement.
5. coin side according to claim 1 pick-up unit, is characterized in that: described curved reflector (7) is oval calotte.
6. coin side according to claim 1 pick-up unit, is characterized in that: described tested coin platform (4) is clear glass.
7. the method utilizing the device described in any one of claim 1-6 claim to detect coin side, it is characterized in that: described method comprises the steps: that bottom to be projected tested coin by back light (3), the LED that top arranges with annular array is for supplementary lighting sources (2), the illuminating ray (12) that supplementary lighting sources (2) sends becomes the reflection ray of soft even light after oval calotte catoptron (11) to tested coin side by diffusion clavate, and the reflection ray (11) of tested coin side is taken pictures or lens imaging by camera.
8. method according to claim 7, is characterized in that: the point-foussed striated defect detecting coin side after utilizing oval calotte to reflect, regulates threaded adjusting region (8), can focus, thus meets the requirement detected light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345009.7A CN102842165B (en) | 2012-09-17 | 2012-09-17 | Device and method for detecting side surfaces of coins |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210345009.7A CN102842165B (en) | 2012-09-17 | 2012-09-17 | Device and method for detecting side surfaces of coins |
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| Publication Number | Publication Date |
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| CN102842165A CN102842165A (en) | 2012-12-26 |
| CN102842165B true CN102842165B (en) | 2015-05-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104123780B (en) * | 2013-09-01 | 2019-06-04 | 中钞长城金融设备控股有限公司 | Coin quality of edges detection method and its detection device |
| CN105629634A (en) * | 2016-02-26 | 2016-06-01 | 苏州巨硕智能技术有限公司 | Reflector and detection device with same |
| WO2018027503A1 (en) * | 2016-08-08 | 2018-02-15 | 深圳市大疆创新科技有限公司 | Fog droplet tester and fog droplet testing system |
| CN107687812A (en) * | 2017-09-19 | 2018-02-13 | 南通爱慕希机械股份有限公司 | A kind of external screw thread intelligent checking system based on machine vision |
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| JP2000163622A (en) * | 1998-11-30 | 2000-06-16 | Sanyo Electric Co Ltd | Coin discriminating device |
| JP2002092681A (en) * | 2000-09-20 | 2002-03-29 | Nippon Conlux Co Ltd | Method and device for discriminating coin |
| CN1975790A (en) * | 2005-08-24 | 2007-06-06 | 劳雷尔精机株式会社 | Coin detecting apparatus |
| CN201804365U (en) * | 2010-04-12 | 2011-04-20 | 高新现代智能系统股份有限公司 | Coin image recognition device |
| CN102184588A (en) * | 2011-06-03 | 2011-09-14 | 江苏科思机电工程有限公司 | Reflective amplified type coin detection device |
| CN202748861U (en) * | 2012-09-17 | 2013-02-20 | 上海创波光电科技有限公司 | Detection apparatus for side surface of coin |
-
2012
- 2012-09-17 CN CN201210345009.7A patent/CN102842165B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000163622A (en) * | 1998-11-30 | 2000-06-16 | Sanyo Electric Co Ltd | Coin discriminating device |
| JP2002092681A (en) * | 2000-09-20 | 2002-03-29 | Nippon Conlux Co Ltd | Method and device for discriminating coin |
| CN1975790A (en) * | 2005-08-24 | 2007-06-06 | 劳雷尔精机株式会社 | Coin detecting apparatus |
| CN201804365U (en) * | 2010-04-12 | 2011-04-20 | 高新现代智能系统股份有限公司 | Coin image recognition device |
| CN102184588A (en) * | 2011-06-03 | 2011-09-14 | 江苏科思机电工程有限公司 | Reflective amplified type coin detection device |
| CN202748861U (en) * | 2012-09-17 | 2013-02-20 | 上海创波光电科技有限公司 | Detection apparatus for side surface of coin |
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| CN102842165A (en) | 2012-12-26 |
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