CN101561948A - Automatic coin quality detection device - Google Patents

Automatic coin quality detection device Download PDF

Info

Publication number
CN101561948A
CN101561948A CNA2008100110595A CN200810011059A CN101561948A CN 101561948 A CN101561948 A CN 101561948A CN A2008100110595 A CNA2008100110595 A CN A2008100110595A CN 200810011059 A CN200810011059 A CN 200810011059A CN 101561948 A CN101561948 A CN 101561948A
Authority
CN
China
Prior art keywords
coin
detection device
unit
quality detection
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008100110595A
Other languages
Chinese (zh)
Inventor
刘迪
赖茂明
张吉刚
勾久斌
张波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Banknote Printing and Minting Corp
Original Assignee
China Banknote Printing and Minting Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Banknote Printing and Minting Corp filed Critical China Banknote Printing and Minting Corp
Priority to CNA2008100110595A priority Critical patent/CN101561948A/en
Publication of CN101561948A publication Critical patent/CN101561948A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to an automatic coin quality detection device, in particular to a high-precision multifunctional automatic coin production quality detection device based on a visual system, realized by applying an image processing technology. The detection device comprises a combined illumination imaging light source, an image receiving unit, an image processing unit, a result output unit and a damaged coin discarding device, wherein the image receiving unit, the image processing unit, the result output unit and the damaged coin discarding device are sequentially connected; the combined illumination imaging light source adopts a mode that surface light sources at a high angle and a low angle illuminate at the same time; the image receiving unit collects image data on the coin surface; the image processing unit process the collected image data, confirms and discards defective products according to a production standard and transfers real-time detected images and analysis result information to the result output unit; and the damaged coin discarding device discards the ultra-detective products according to the control information of the image processing unit. The invention has the objective detection standard, can quantitatively prescribe, improves the production efficiency, can continuously upgrade the detection speed, emancipates the labor force and improves the automation degree of coinage.

Description

A kind of automatic coin quality detection device
Technical field
The present invention relates to a kind of coin production product quality pick-up unit, the high-accuracy multifunctional coin quality of production automatic detection device that particularly a kind of application image treatment technology is realized based on vision system.
Background technology
Coin circulation during China produces at present mainly contains three kinds: be respectively the monobasic coin, and five jiaos of coin and one jiao of coin.In addition, the commemorative coin that also has some.Because Chinese population quantity is many, coin circulation quantity is big, is the only way of enhancing productivity so adopt the coinage process of robotization.Along with the raising of national power, people are also more and more higher to the currency quality requirements of representing national image.Adopt coin finished product (being called for short the flower cake) quality detecting system to replace traditional artificial quality testing can realize the process of robotization coinage, enhance productivity, can also improve the quality of the product that dispatches from the factory.
The detection of flower cake is last link in the coinage flow process, is last one critical point that product quality is checked on.In all multipaths of coinage, because technology, equipment, environment, factor such as artificial can produce various defectives, as: scratch, damage, sticking to mould, dirty cake, oil cake, big incompleteness, little incompleteness, stain, burn into variable color, sticking hole, play knurl etc.Adopt manual detection in the past, had big, the problems such as efficiency ratio is lower, human cost height of examination criteria disunity, labour intensity.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of automatic coin quality detection device is provided, can carry out comprehensive printing quality at existing coin circulation and commemorative coin product and detect, solve examination criteria disunity in the prior art, labour intensity is big, efficient is low, cost is high problem.The present invention adopts many high precision area array CCD cameras to form the precision optics detection system, auxiliary collection and the test analysis of realizing coin image with high accuracy mechanical gearing and stop means; Can detect all surface defective of coin pros and cons and the function of geometric parameter.
Technical scheme of the present invention is:
Surface quality is set checks module, handle the tow sides data of flower cake respectively, and reject the defective coin according to testing result; Comprise combination lighting imaging source, the image receiving unit that connects successively, graphics processing unit, output unit and bad coin are picked out device as a result; The combination lighting imaging source adopts high and low angle area source lighting system simultaneously, can guarantee to obtain the image of coin surface complete display; Image receiving unit is gathered the view data on coin surface; Graphics processing unit is handled the view data of gathering, and determines faulty goods and rejecting according to production standard, real-time detected image and analysis result information can be sent to output unit as a result simultaneously; Bad coin is picked out the control information of device according to graphics processing unit, and overproof product is rejected.
Described image receiving unit comprises shooting support and camera system, and described shooting support is fixed on the operating platform, and combination lighting imaging source and camera system are fixed on the shooting support, gathers the view data on coin surface along coin Surface Vertical direction.
Described graphics processing unit, comprise successively the positioning unit, the filter unit that connect, cut apart sampling unit and lopsided correcting unit, respectively by location, filtering, cut apart and with alignment technique the image of gathering carried out multi-scale filtering and various dimensions are handled, obtain flower cake qualitative data, determine faulty goods and rejecting according to production standard, real-time detected image and analysis result information can be sent to output unit as a result simultaneously.
Described output unit as a result comprises display unit, alarm unit, performance element and database, shows in real time, stores or print.
Described bad coin is picked out device, comprise control circuit, air-blast connection pipe, solenoid valve, special-purpose oriented nozzle, the opening and closing of solenoid valve are controlled by control circuit, and air-blast connection pipe is connected on the inlet of solenoid valve, and the outlet of solenoid valve connects special-purpose oriented nozzle.
Described camera system is area array CCD camera and high-resolution lens.
Be provided with light path between described shooting support and the camera system, strengthen anti-veiling glare interference performance.
Also be provided with material-falling hopper, each side of material-falling hopper inboard is provided with soft material.
Described operating platform also is provided with feed belt and mechanical positioner.
Advantageous effect of the present invention is as follows:
The present invention adopts machine vision technique, and the realtime graphic of production is handled.Check that whether coin exists the various defectives that produce because of technology, equipment, environment, factor such as artificial, can reject the defective coin simultaneously automatically.This device check criteria is objective quantitatively can to improve coin production efficiency greatly, improves the coinage automaticity.
The present invention adopts machine vision technique to carry out quality check, and check criteria is objective, and can quantitative description; Improved production efficiency, detection speed depends on hardware arithmetic speed and program optimization degree, along with the development of technology, can constantly upgrade; The liberation labour improves the coinage automaticity.
Bad coin is picked out unlatching that device can regulate solenoid valve by control circuit constantly and open perdurability, the jet direction that can regulate special-purpose oriented nozzle by bearing structure.Solenoid valve is opened under the effect of control circuit, and air-blast connection pipe transferring high voltage air sprays at a certain angle from special-purpose oriented nozzle, the inferior coin of checking out accurately can be sorted out from good product, has not influenced the normal transmission of product.
Material-falling hopper can be preserved the inferior coin that eliminates.Inferior coin flower cake is blown in the material-falling hopper passage from the side, after the flower cake enters, can guarantee that it falls along opening, does not get back in the product and can not rebound.
The present invention is a non-contact detection system, can not cause any harm for product, and is identical with the principle of work of human eye, and examination criteria is objective reliable, is that desirable end product quality is checked means.
Description of drawings
Fig. 1 is a principle of work block diagram of the present invention.
Fig. 2 is a system works synoptic diagram front view of the present invention.
Fig. 3 is a system works synoptic diagram vertical view of the present invention.
Among the figure, 1, camera, 2, camera lens, 3, light source, 4, device for eliminating, 5, position transducer, 6, the flower cake, 7, scrambler.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated.
Surface quality is set checks module, handle the tow sides data of flower cake respectively, and reject the defective coin according to testing result; Comprise combination lighting imaging source, the image receiving unit that connects successively, graphics processing unit, output unit and bad coin are picked out device as a result; The combination lighting imaging source adopts high and low angle area source lighting system simultaneously, can guarantee to obtain the image of coin surface complete display; Image receiving unit is gathered the view data on coin surface along coin Surface Vertical direction, it comprises shooting support, area array CCD camera and high-resolution lens, described shooting support, travelling belt and mechanical positioner are fixed on the operating platform, combination lighting imaging source, area array CCD camera and high-resolution lens are fixed on the shooting support, and the light path of strengthening anti-veiling glare interference performance is set between shooting support and area array CCD camera, the high-resolution lens; Graphics processing unit comprises successively the positioning unit, the filter unit that connect, cuts apart sampling unit and lopsided correcting unit, respectively by location, filtering, cut apart and with alignment technique the image of gathering carried out multi-scale filtering and various dimensions are handled, obtain flower cake qualitative data, determine faulty goods and rejecting according to production standard, simultaneously real-time detected image and analysis result information can be sent to display unit, alarm unit, performance element and database, show in real time, store or print; Bad coin is picked out the control information of device according to graphics processing unit, and overproof product is rejected in the material-falling hopper, and each side of material-falling hopper inboard is provided with soft material; Bad coin is picked out device and is made up of control circuit, air-blast connection pipe, solenoid valve, special-purpose oriented nozzle and bearing structure, the opening and closing of solenoid valve are controlled by control circuit, air-blast connection pipe is connected on the inlet of solenoid valve, and the outlet of solenoid valve connects special-purpose oriented nozzle.
The principle of work of the present invention and the course of work are as follows:
The present invention adopts machine vision technique, promptly obtains real-time target image by imageing sensor, obtains defect information by image processing techniques again, has carried out the bad product letter sorting.
Light source is the benchmark and the reference source of system, when illumination detects target, provides system's reference signal.After the detection target is illuminated, surface signal (comprising pattern, background and defective) will be modulated on the reference signal.Modulation signal is imaged on the focal plane of camera after assembling by camera lens, camera is converted to electronic image signal by CCD with optical image signal and is input to graphics processing unit, after graphics processing unit is treated to the form that needs with picture signal, carry out various information extractions and processing, normal signal and flaw indication mark are come out, be distributed to display unit, alarm unit, performance element and database by computing machine.
In order to improve detection efficiency, system adopts the two-way parallel detection, as shown in Figure 2.The flower cake is fallen on the feed belt by feeder hopper, through mechanical positioner, makes that the movement locus left and right sides is controlled, is convenient to detect.When the sensor of coin in-position, determine exact position, coin front and back, in conjunction with the speed of travelling belt, trigger camera shutter, obtain accurately product picture signal in real time.When the product of finding not meet quality standard, control circuit is opened solenoid valve, and pressure-air is rejected defective from special-purpose oriented nozzle ejection.Defective falls into special-purpose material-falling hopper.

Claims (9)

1, a kind of automatic coin quality detection device is characterized in that comprising following structure: surface quality is set checks module, handle the tow sides data of flower cake respectively, and reject the defective coin according to testing result; Comprise combination lighting imaging source, the image receiving unit that connects successively, graphics processing unit, output unit and bad coin are picked out device as a result; The combination lighting imaging source adopts high and low angle area source lighting system simultaneously, can guarantee to obtain the image of coin surface complete display; Image receiving unit is gathered the view data on coin surface; Graphics processing unit is handled the view data of gathering, and determines faulty goods and rejecting according to production standard, real-time detected image and analysis result information can be sent to output unit as a result simultaneously; Bad coin is picked out the control information of device according to graphics processing unit, and overproof product is rejected.
2, a kind of automatic coin quality detection device according to claim 1, it is characterized in that described image receiving unit, comprise shooting support and camera system, described shooting support is fixed on the operating platform, combination lighting imaging source and camera system are fixed on the shooting support, gather the view data on coin surface along coin Surface Vertical direction.
3, a kind of automatic coin quality detection device according to claim 2 is characterized in that described camera system is area array CCD camera and high-resolution lens.
4, a kind of automatic coin quality detection device according to claim 2 is characterized in that being provided with light path between described shooting support and the camera system, strengthens anti-veiling glare interference performance.
5, a kind of automatic coin quality detection device according to claim 2 is characterized in that described operating platform also is provided with feed belt and mechanical positioner.
6, a kind of automatic coin quality detection device according to claim 1, it is characterized in that described graphics processing unit, comprise successively the positioning unit, the filter unit that connect, cut apart sampling unit and lopsided correcting unit, respectively by location, filtering, cut apart and with alignment technique the image of gathering carried out multi-scale filtering and various dimensions are handled, obtain flower cake qualitative data, determine faulty goods and rejecting according to production standard, real-time detected image and analysis result information can be sent to output unit as a result simultaneously.
7, a kind of automatic coin quality detection device according to claim 1 is characterized in that described output unit as a result comprises display unit, alarm unit, performance element and database, shows in real time, stores or print.
8, a kind of automatic coin quality detection device according to claim 1, it is characterized in that described bad coin picks out device, comprise control circuit, air-blast connection pipe, solenoid valve, special-purpose oriented nozzle, the opening and closing of solenoid valve are controlled by control circuit, air-blast connection pipe is connected on the inlet of solenoid valve, and the outlet of solenoid valve connects special-purpose oriented nozzle.
9, a kind of automatic coin quality detection device according to claim 1 is characterized in that also being provided with material-falling hopper, and each side of material-falling hopper inboard is provided with soft material.
CNA2008100110595A 2008-04-17 2008-04-17 Automatic coin quality detection device Pending CN101561948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100110595A CN101561948A (en) 2008-04-17 2008-04-17 Automatic coin quality detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100110595A CN101561948A (en) 2008-04-17 2008-04-17 Automatic coin quality detection device

Publications (1)

Publication Number Publication Date
CN101561948A true CN101561948A (en) 2009-10-21

Family

ID=41220734

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100110595A Pending CN101561948A (en) 2008-04-17 2008-04-17 Automatic coin quality detection device

Country Status (1)

Country Link
CN (1) CN101561948A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207467A (en) * 2011-04-02 2011-10-05 云南昆船设计研究院 Method and device for online detection and rejection of unembossed coins
CN102218406A (en) * 2011-01-04 2011-10-19 华南理工大学 Intelligent detection device of defects of mobile phone outer shell based on machine vision
CN102305793A (en) * 2011-05-11 2012-01-04 苏州天准精密技术有限公司 Method and equipment for detecting appearance quality of product
CN102350863A (en) * 2011-07-05 2012-02-15 上海印钞有限公司 Letterpress printing and large-piece product quality inspection combination machine
CN102374997A (en) * 2010-08-25 2012-03-14 中国印钞造币总公司 High-precision detection device of coin surface quality based on vision system
CN102608127A (en) * 2012-04-09 2012-07-25 杭州智感科技有限公司 Machine vision based device for detecting metal lid surface defects
CN102721699A (en) * 2012-06-06 2012-10-10 朱保凌 Non-destructive detection system for high-definition probe
CN102866160A (en) * 2012-08-29 2013-01-09 上海造币有限公司 System and method for detecting surface quality of coin mold
CN104724467A (en) * 2013-12-21 2015-06-24 贵阳铝镁设计研究院有限公司 Aluminum ingot size-controlling and positioning method and aluminum ingot size-controlling and positioning device
CN104835239A (en) * 2015-05-13 2015-08-12 昆山古鳌电子机械有限公司 Coin identification apparatus and identification method thereof
CN105160761A (en) * 2015-07-08 2015-12-16 安徽科技学院 Coin screening separator
CN106053479A (en) * 2016-07-21 2016-10-26 湘潭大学 System for visually detecting workpiece appearance defects based on image processing
CN108369759A (en) * 2015-10-16 2018-08-03 许勒压力机有限责任公司 test device for testing coin blank
CN109643475A (en) * 2017-03-16 2019-04-16 富士电机株式会社 Coin verifying attachment
CN109887151A (en) * 2019-03-05 2019-06-14 苏州少士电子科技有限责任公司 A kind of Detecting of coin mechanism
CN109968850A (en) * 2019-01-31 2019-07-05 上海造币有限公司 A kind of high speed positioning color printing production method of metal coin stamp
CN110738606A (en) * 2019-09-06 2020-01-31 深圳新视智科技术有限公司 Image correction method, device, terminal and storage medium for multi-light source system
CN111830039A (en) * 2020-07-22 2020-10-27 南京认知物联网研究院有限公司 Intelligent product quality detection method and device
CN112474385A (en) * 2019-09-12 2021-03-12 南京造币有限公司 Blank cake surface quality detection device
CN113322653A (en) * 2021-06-01 2021-08-31 苏州中科飞梭智能技术有限公司 Automatic positioning textile defect detection system

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374997A (en) * 2010-08-25 2012-03-14 中国印钞造币总公司 High-precision detection device of coin surface quality based on vision system
CN102218406B (en) * 2011-01-04 2013-06-12 华南理工大学 Intelligent detection device of defects of mobile phone outer shell based on machine vision
CN102218406A (en) * 2011-01-04 2011-10-19 华南理工大学 Intelligent detection device of defects of mobile phone outer shell based on machine vision
CN102207467A (en) * 2011-04-02 2011-10-05 云南昆船设计研究院 Method and device for online detection and rejection of unembossed coins
CN102207467B (en) * 2011-04-02 2013-08-07 云南昆船设计研究院 Method and device for online detection and rejection of unembossed coins
CN102305793A (en) * 2011-05-11 2012-01-04 苏州天准精密技术有限公司 Method and equipment for detecting appearance quality of product
CN102350863A (en) * 2011-07-05 2012-02-15 上海印钞有限公司 Letterpress printing and large-piece product quality inspection combination machine
CN102350863B (en) * 2011-07-05 2014-01-01 上海印钞有限公司 Letterpress printing and large-piece product quality inspection combination machine
CN102608127A (en) * 2012-04-09 2012-07-25 杭州智感科技有限公司 Machine vision based device for detecting metal lid surface defects
CN102721699A (en) * 2012-06-06 2012-10-10 朱保凌 Non-destructive detection system for high-definition probe
CN102866160A (en) * 2012-08-29 2013-01-09 上海造币有限公司 System and method for detecting surface quality of coin mold
CN102866160B (en) * 2012-08-29 2014-10-08 上海造币有限公司 System and method for detecting surface quality of coin mold
CN104724467A (en) * 2013-12-21 2015-06-24 贵阳铝镁设计研究院有限公司 Aluminum ingot size-controlling and positioning method and aluminum ingot size-controlling and positioning device
CN104835239A (en) * 2015-05-13 2015-08-12 昆山古鳌电子机械有限公司 Coin identification apparatus and identification method thereof
CN105160761A (en) * 2015-07-08 2015-12-16 安徽科技学院 Coin screening separator
CN108369759A (en) * 2015-10-16 2018-08-03 许勒压力机有限责任公司 test device for testing coin blank
CN108369759B (en) * 2015-10-16 2020-05-15 许勒压力机有限责任公司 Testing device for testing coin blanks
CN106053479B (en) * 2016-07-21 2018-09-11 湘潭大学 A kind of vision detection system of the workpiece appearance defects based on image procossing
CN106053479A (en) * 2016-07-21 2016-10-26 湘潭大学 System for visually detecting workpiece appearance defects based on image processing
CN109643475A (en) * 2017-03-16 2019-04-16 富士电机株式会社 Coin verifying attachment
CN109968850A (en) * 2019-01-31 2019-07-05 上海造币有限公司 A kind of high speed positioning color printing production method of metal coin stamp
CN109887151B (en) * 2019-03-05 2021-11-12 苏州少士新创电子科技有限公司 Coin detection mechanism
CN109887151A (en) * 2019-03-05 2019-06-14 苏州少士电子科技有限责任公司 A kind of Detecting of coin mechanism
CN110738606A (en) * 2019-09-06 2020-01-31 深圳新视智科技术有限公司 Image correction method, device, terminal and storage medium for multi-light source system
CN112474385A (en) * 2019-09-12 2021-03-12 南京造币有限公司 Blank cake surface quality detection device
CN111830039A (en) * 2020-07-22 2020-10-27 南京认知物联网研究院有限公司 Intelligent product quality detection method and device
CN113322653A (en) * 2021-06-01 2021-08-31 苏州中科飞梭智能技术有限公司 Automatic positioning textile defect detection system
CN113322653B (en) * 2021-06-01 2022-08-30 苏州精梭智能技术有限公司 Automatic positioning textile defect detection system

Similar Documents

Publication Publication Date Title
CN101561948A (en) Automatic coin quality detection device
CN106053479B (en) A kind of vision detection system of the workpiece appearance defects based on image procossing
EP1151283B1 (en) Cylindrical object surface inspection system
CN109454006A (en) Chemical fiber wire ingot is stumbled the device and its detection stage division of a defect on-line checking and classification
CN110216080A (en) A kind of Quality Monitoring Control System of the PCB processing producing line based on image comparison
CN100547394C (en) Fruit quality detection system based on image information fusion technology
CN102735693B (en) Vision-based steel ball surface defect detection apparatus and detection method
CN102175692A (en) System and method for detecting defects of fabric gray cloth quickly
CN104634790A (en) Capsule detection method and high-speed fully-automatic detection device
CN202974886U (en) Machine-vision-based tank body seam defect detection system
CN101750419B (en) Open-type visual detection method based on featuring matching
CN102866166A (en) Automatic optic detecting system and method
CN104483320B (en) Digitized defect detection device and detection method of industrial denitration catalyst
CN1485616A (en) Fowl eggs quality non-destruction automatic detection grading apparatus and process
CN110108726A (en) A kind of Full-automatic optical detecting system for chip detection
CN206022316U (en) A kind of solar energy silicon crystal chip defect automatic checkout equipment
CN106353336A (en) Lens coating automatic detection system
CN111000286A (en) Anti-interference cigarette appearance quality online detection device and method
CN109663747A (en) A kind of Chinese chestnut small holes caused by worms intelligent detecting method
CN112268910A (en) Visual detection system and method for cigarette appearance defects
CN202074946U (en) Cigarette case appearance detecting device
CN206139529U (en) Transparent roller bearing mechanism
CN205844212U (en) A kind of detection equipment of liquid-crystalline glasses Superficial Foreign Body
CN109461156A (en) The threaded closure plug assembly and detection method of view-based access control model
CN109466225A (en) A kind of mosaic paving system based on machine vision

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Open date: 20091021