CN109509291A - A kind of coin edge figure line check device - Google Patents
A kind of coin edge figure line check device Download PDFInfo
- Publication number
- CN109509291A CN109509291A CN201710832808.XA CN201710832808A CN109509291A CN 109509291 A CN109509291 A CN 109509291A CN 201710832808 A CN201710832808 A CN 201710832808A CN 109509291 A CN109509291 A CN 109509291A
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- CN
- China
- Prior art keywords
- coin
- edge
- optical imaging
- imaging system
- image
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- 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.)
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/005—Testing the surface pattern, e.g. relief
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/10—Testing the rim, e.g. the milling of the rim
Abstract
The present invention discloses a kind of coin edge figure line check device, belongs to coin quality and checks field.It includes light-source control system, signal detection system, optical imaging system and image processing system, and optical imaging system is connect with image processing system；Signal detection system is used to detect the coin trigger signal that coin generates when by specific position on coin transfer passage, and coin trigger signal is sent to optical imaging system, optical imaging system is used to obtain the image data of the edge image including coin, and image data is sent to image processing system, image processing system is used to carry out framing segmentation to the edge image of coin, the edge image of the coin and the gray scale template without rolling word coin are compared using gray scale template matching algorithm, judge whether the edge of the coin is completely rolled word excessively.The present invention can prevent risk caused by not rolling the outflow of word product, preferably control product quality.
Description
Technical field
The invention belongs to coin qualities to check field, especially a kind of coin edge figure line check device.
Background technique
Unitary coin increases one of edge rolling word process compared to 5 jiaos of coin and 1 jiao of coin.Word production is not rolled in existing lookup
The way of product (is led to by controlling the method for diameter tolerance of unitary coin to realize by increasing sorter in marking press
The unitary coin diameter for often not rolling word has exceeded the margin of tolerance of normal product), this part can be filtered out by sorter and produced
Product.
We statistically analyze a large amount of unitary coin blank cakes and finished product sample, it is found that a certain amount of unitary coin is deposited
Word is not being rolled or rolls the shallower situation of word, it is although simple and effective by the method for sorter but be not most direct intuitive method,
And diameter can not be picked out normally but do not roll word or roll the shallower product of word.In order to preferably carry out the control of product, prevent from not rolling
Word product flows out to the image for seriously affecting RMB in the market, causes great risk, therefore considers to test face machine existing
It is upper to design and research and develop a kind of coin edge figure line check device, identification judgement directly is carried out to unitary coin edge figure line, to not
Qualified product alarm is shut down, and quality coefficient is maximized.
Summary of the invention
Have the defects that not picking out diameter normally for the solution prior art but does not roll word or the rolling shallower product of word, the present invention
A kind of coin edge figure line check device is provided.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of coin edge figure line check device, the device include light-source control system, signal detection system, optical imagery
System and image processing system, optical imaging system are connect with image processing system；
Signal detection system is used to detect the coin triggering that coin generates when by specific position on coin transfer passage
Signal, and coin trigger signal is sent to optical imaging system, optical imaging system is for obtaining the edge image including coin
Image data, and send image data to image processing system, image processing system is used to carry out the edge image of coin
Framing segmentation is carried out the edge image of the coin and the gray scale template without rolling word coin using gray scale template matching algorithm
Comparison, judges whether the edge of the coin is completely rolled word excessively.
Further, signal detection system includes the photoelectric sensor for detecting coin trigger signal, photoelectric sensor
It is set to the top of coin transfer passage.
Further, photoelectric sensor detects that coin will enter edge detection station, sends coin trigger signal extremely
Optical imaging system triggers photographing signals as smart camera.
Further, optical imaging system includes smart camera and light source, and light source is located at the side of coin transfer passage, and
Light source is also located at the top of smart camera, the side of smart camera face coin；
Smart camera includes digital signal processor and camera lens；
Light source is controlled by light-source control system；
Optical imaging system controls the exposure of smart camera by the time delay count of digital signal processor.
Further, which is installed at colored cake with card format and tests in the machine of face, and the review time is per minute with marking press
600-800 pieces of drawing velocity matches.
The utility model has the advantages that
The present invention can prevent risk caused by not rolling the outflow of word product, preferably control product quality.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of coin edge figure line check device of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, a kind of coin edge figure line check device of the present invention, it includes light-source control system 1, signal detection
System 2, optical imaging system 3 and image processing system 4, optical imaging system 3 are connect with image processing system 4；Signal detection
System 2 includes photoelectric sensor 21, and photoelectric sensor 21 is set to the top of coin transfer passage；Optical imaging system 3 includes
Smart camera 31 and light source 32, light source 32 is located at the side of coin transfer passage, and light source 32 is also located at the upper of smart camera 31
Side, the side of 31 face coin of smart camera；Smart camera 31 includes digital signal processor and camera lens；Light source 32 is by light source control
System 1 processed is controlled.
After the edge image that the present invention passes through the coin that will be obtained carries out image preprocessing, calculated using gray scale template matching
Method is as effective means rejected edge and do not roll word or the rolling shallower coin of word.Specifically, firstly, in signal detection system 2
Photoelectric sensor 21 detects whether coin will enter edge detection station, and result is to send coin trigger signal to light when being
Imaging system 3 is learned, the signal taken pictures is triggered as smart camera 31；Smart camera 31 in optical imaging system 3 is opened, to
The each piece of coin side tested on the machine belt of face is taken pictures, while passing through the time delay count pair of digital signal processor (DSP)
The exposure of smart camera 31 is controlled, and the edge image of coin is obtained；Then, by image processing system 4 to the edge figure
It is final to use gray scale template matching algorithm by the edge image and the gray scale template without rolling word coin as carrying out framing segmentation
Compare, judge whether its edge is completely rolled word excessively, if it find that do not roll word or rolling word it is shallower, system is automatic
Alarm is shut down, and is shown corresponding image on computers and saved image.
Pass through the side image of the coin of 31 shooting of intelligence photograph in optical imaging system 3, wherein rolled word coin side
Edge feature " RMB " printed words or diamond sign in face, the image under the light irradiation that light source 32 issues is compared to periphery, color
It is brighter；And the surface bright spot without rolling word coin side is uniform, therefore can effectively identify surface one using gray scale template matching algorithm
Cause property problem (luminance area for not rolling word surface bright spot to be evenly distributed, and having rolled word is usually in character position).
It is tested in the machine of face in conclusion package unit is installed at colored cake with card format, the review time can adapt to marking press
600-800 pieces of drawing velocity per minute, and the operation stability of the device has obtained mass production verifying, and false detection rate is less than 20
A ten thousandth, omission factor 0.
Limiting the scope of the invention, those skilled in the art should understand that, in technical solution of the present invention
On the basis of, the various modifications or variations that can be made by those skilled in the art with little creative work still of the invention
Within protection scope.
Claims (5)
1. a kind of coin edge figure line check device, it is characterised in that: described device includes light-source control system (1), signal inspection
Examining system (2), optical imaging system (3) and image processing system (4), the optical imaging system (3) and image processing system
(4) it connects；
The signal detection system (2) is used to detect the coin touching that coin generates when by specific position on coin transfer passage
It signals, and sends coin trigger signal to optical imaging system (3), optical imaging system (3) is used to obtain including coin
The image data of edge image, and image data is sent to image processing system (4), image processing system (4) is used for coin
Edge image carry out framing segmentation, using gray scale template matching algorithm by the edge image of the coin with without rolling word coin
Gray scale template compare, judge whether the edge of the coin is completely rolled word excessively.
2. coin edge figure line check device according to claim 1, it is characterised in that: the signal detection system (2)
Including the photoelectric sensor (21) for detecting coin trigger signal, photoelectric sensor (21) is set to the upper of coin transfer passage
Side.
3. coin edge figure line check device according to claim 2, it is characterised in that: photoelectric sensor (21) inspection
Edge detection station will be entered by measuring coin, send coin trigger signal to optical imaging system (3), as smart camera
(31) photographing signals are triggered.
4. coin edge figure line check device according to claim 1 or 2 or 3, it is characterised in that: the optical imagery system
System (3) includes smart camera (31) and light source (32), and light source (32) is located at the side of coin transfer passage, and light source (32) also position
In the top of smart camera (31), the side of smart camera (31) face coin；
The smart camera (31) includes digital signal processor and camera lens；
The light source (32) is controlled by light-source control system (1)；
The time delay count that the optical imaging system logical (3) crosses digital signal processor controls the exposure of smart camera (31)
System.
5. coin edge figure line check device according to claim 1, it is characterised in that: described device is added with card format
It is tested in the machine of face mounted in flower cake, the review time matches with 600-800 pieces per minute of marking press of drawing velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832808.XA CN109509291A (en) | 2017-09-15 | 2017-09-15 | A kind of coin edge figure line check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832808.XA CN109509291A (en) | 2017-09-15 | 2017-09-15 | A kind of coin edge figure line check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109509291A true CN109509291A (en) | 2019-03-22 |
Family
ID=65744904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710832808.XA Pending CN109509291A (en) | 2017-09-15 | 2017-09-15 | A kind of coin edge figure line check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109509291A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053019A (en) * | 2021-03-08 | 2021-06-29 | 中钞长城金融设备控股有限公司 | Coin edge quality detection method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053019A (en) * | 2021-03-08 | 2021-06-29 | 中钞长城金融设备控股有限公司 | Coin edge quality detection method and system |
| CN113053019B (en) * | 2021-03-08 | 2022-11-01 | 中钞长城金融设备控股有限公司 | Coin edge quality detection method and system |
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Application publication date: 20190322 |