CN207263303U - A kind of pearl multi-surface detection device based on machine vision - Google Patents
A kind of pearl multi-surface detection device based on machine vision Download PDFInfo
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- CN207263303U CN207263303U CN201720848342.8U CN201720848342U CN207263303U CN 207263303 U CN207263303 U CN 207263303U CN 201720848342 U CN201720848342 U CN 201720848342U CN 207263303 U CN207263303 U CN 207263303U
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- pearl
- infundibulate
- machine vision
- surface detection
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 230000006698 induction Effects 0.000 claims abstract description 17
- 239000011049 pearl Substances 0.000 description 56
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010984 cultured pearl Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of pearl multi-surface detection device based on machine vision, including video camera, annular LED light source, infundibulate device, pearl, air induction conduit, compressed air；The infundibulate device upper end is provided with annular LED light source, and the annular LED light source upper end is provided with video camera, and the compressed air is entered in the infundibulate device by the air induction conduit, and the pearl is located at the infundibulate the bottom of the device.The utility model obtains the full surface image information of pearl by a video camera, and device is simple, and cost is low, saves the pearl classification time, while can be used for the detection of the indexs such as pearl color, shape, finish according to grade scale.
Description
Technical field
It the utility model is related to pearl Sorting Technique field, in particular to a kind of pearl multi-surface inspection based on machine vision
Survey device.
Background technology
CHINESE FRESHWATER pearl production accounts for more than the 95% of world's pearl production, and the output value only accounts for the 10% of the global pearl gross output value.
Realize that the pearl automatic sorting based on machine vision is particularly important for the output value for improving whole industry.According to cultured pearl
The appearance of national grade scale（GB/T 18781-2008）, the clear stipulaties grade scale of pearl, for shape, color, big
Small, finish classification has clear and definite index.Realize machine automatic sorting, first technical problems to be solved be exactly for
The acquisition of pearl image, image are planes, and pearl is three-dimensional, to obtain the full surface of pearl, can preferably judge
The shape of pearl, color, finish etc..
Obtaining the device of pearl surface image has many methods, such as 200720105500.7 disclosure of national patent application number
A kind of pearl based on machine vision detection and hierarchy system in real time, wherein in terms of pearl image acquisition, with machine vision
Technology, Image Acquisition is carried out to the pearl surface to fall by glass tube order.The invention exists in terms of image capture technology
Shortcoming：Pearl surface is obtained from different perspectives using more high-speed cameras, so that cost raises；The opposing party
Face, when to pearl color grading, ensures that the unification of the color system of every video camera is more difficult, and to the transparent of glass tube
Degree requirement is very high, and light source, which is dealt with improperly, influences detection phenomena such as also causing reflective refraction.
Such as number of patent application discloses a kind of pearl based on monocular multi-view machine vision for 201210411979.2
The on-line automatic grading plant of color glossiness, the monocular multi-view being made of a wide angle cameras and 8 plane mirrors are three-dimensional
Sighting device, by the Polaroid pearl surface image to obtain from a viewing angles of a wide angle cameras, is realized
A kind of omnibearing vision device using pearl as observation center.Invention Shortcomings in terms of image acquisition：Fixed point shooting, nothing
Method obtains full surface, and feeding actuating mechanism is complicated, and the detection of every pearl is required for the movement of movable mandril, easy to wear, increases
Add cost and extend the pearl classification time.
The content of the invention
The purpose of this utility model is that it is directed to the shortcomings of the prior art, there is provided a kind of simple in structure, system
Cause low, a convenient a kind of pearl multi-surface detection device based on machine vision of working service.
The utility model solves technical solution used by its technical problem：
A kind of pearl multi-surface detection device based on machine vision, including：Video camera, annular LED light source, funnel shape dress
Put, pearl, air induction conduit, compressed air；The infundibulate device upper end is provided with annular LED light source, the annular LED light source
Upper end is provided with video camera, and the compressed air is entered in the infundibulate device by the air induction conduit, the pearl position
In the infundibulate the bottom of the device.
Further, the video camera is continuously shot video equipment for pearl, and the video camera passes through circuit and computer
PC ends are connected, and after video camera obtains dynamic video, import in program, the static map of interception number frame clearly different pearl surfaces
Picture, carries out image procossing.
Further, the infundibulate device includes funnel-shaped part and air compressor.
Further, the compressed air pressure that the air compressor produces is 0.04MPa, and the compressed air is led to
Cross the air induction conduit to enter in infundibulate device, by pearl in infundibulate device compared with stable suspersion in the air as air-flow turns over
Transhipment is dynamic.
Further, the infundibulate device inner wall is black, easy to image procossing.
Further, the infundibulate device shape is the circular cone of a handstand, and the annular LED light source is located at circular cone mother
On the extended line of line, easy to will all be illuminated inside the infundibulate device.
As the improved more excellent scheme of the utility model：
Further, the infundibulate device and air induction conduit connecting place set a pillar support, solve comparison rule
Or circular pearl due to the flatter symmetry in surface it is good, be subject to the power of air-flow uniform, cause Suspended Pearl in funnel bottom,
The problem of pearl cannot be cooked tumbling motion, and camera can only photograph the one side of pearl from beginning to end.
Further, one pillar support is highly 1-2 millimeters.
The beneficial effects of the utility model are mainly manifested in：1）The full surface image of pearl is obtained by a video camera
Information, device is simple, and cost is low, saves the pearl classification time；2）The image that the device obtains can be used for treasure according to grade scale
The detection of the indexs such as pearl color, shape, finish；3）One column is set by the infundibulate device and air induction conduit connecting place
Shape supports, solve comparison rule or circular pearl since the flatter symmetry in surface is good, be subject to the power of air-flow uniform, cause
For Suspended Pearl in funnel bottom, pearl cannot be cooked tumbling motion, and camera can only photograph the one side of pearl from beginning to end
Problem.
Brief description of the drawings
Below according to accompanying drawings and embodiments, the structure and features of the utility model is further described.
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the improved more excellent scenario-frame schematic diagram of the utility model.
In attached drawing 1, Fig. 2,1 video camera, 2 annular LED light sources, 3 infundibulate devices, 4 pearls, 5 air induction conduits, 6 compression skies
Gas, 7 pillar supports.
Embodiment
It is the first embodiment of the utility model referring to attached drawing 1.
A kind of pearl multi-surface detection device based on machine vision, including：Video camera 1, annular LED light source 2, infundibulate
Device 3, pearl 4, air induction conduit 5, compressed air 6；3 upper end of infundibulate device is provided with annular LED light source 2, the ring
2 upper end of shape LED light source is provided with video camera 1, and the compressed air 6 enters the infundibulate device 3 by the air induction conduit 5
In, the pearl 4 is located at the bottom of the infundibulate device 3.The infundibulate device 3, maximum inner diameter 10cm, depth are
6.5cm, inner wall of hopper are black, facilitate later image to handle, and 5 internal diameter of air induction conduit is 0.4cm,
Further, the video camera 1 is continuously shot video equipment for pearl 4, and the video camera 1 is by circuit with calculating
Machine PC ends are connected, the 1 shooting duration of video 0.1S of video camera, and interception number 10 is opened, and after video camera 1 obtains dynamic video, import journey
In sequence, the still image on interception number frame clearly different 4 surfaces of pearl, carries out image procossing.
Further, the infundibulate device 3 includes funnel-shaped part and air compressor.
Further, 6 pressure of the compressed air that the air compressor produces is 0.04MPa, the compressed air 6
Entered by the air induction conduit 5 in infundibulate device 3, by pearl 4 in infundibulate device 3 compared with stable suspersion in the air with gas
Stream does flip-flop movement.
Further, 3 inner wall of infundibulate device is black, easy to image procossing.
Further, described to regard infundibulate device 3 as a circular cone to stand upside down, then the annular LED light source 2 is located at
On the extended line of element of cone, easy to which the inside of infundibulate device 3 is all illuminated.
It is second of embodiment of the utility model referring to attached drawing 2.
Further, 5 connecting place of the infundibulate device 3 and air induction conduit sets a pillar support 7, and rule are compared in solution
Then or circular pearl 4 due to the flatter symmetry in surface it is good, be subject to the power of air-flow uniform, cause Suspended Pearl in hopper base
The problem of portion, pearl 4 cannot do tumbling motion, and video camera 1 can only photograph the one side of pearl from beginning to end.
Further, one 7 height of pillar support is 1-2 millimeters.
When the utility model is used, the compressed air 6 is entered in infundibulate device 3 by the air induction conduit 5, will be leaked
In bucket shape device 3 pearl 4 compared with stable suspersion in the air as air-flow does flip-flop movement, at this time, in the annular LED light source 2
Under irradiation, the video camera 1 is connected by circuit with computer PC ends, after video camera 1 obtains 4 dynamic video of pearl, imports journey
In sequence, the still image of interception number frame clearly different pearl surfaces, carries out image procossing, thus tell the shape of pearl 4,
Color, finish etc..
Described above is only the preferred embodiment of the utility model, and above-mentioned specific embodiment is not to the utility model
Limitation, retouching, modification or the equivalent substitution that all those of ordinary skill in the art are made as described above, belong to this reality
With new protection domain.
Claims (8)
- A kind of 1. pearl multi-surface detection device based on machine vision, it is characterised in that：Including video camera, annular LED light source, Infundibulate device, pearl, air induction conduit, compressed air；The infundibulate device upper end is provided with annular LED light source, the ring Shape LED light source upper end is provided with video camera, and the compressed air is entered in the infundibulate device by the air induction conduit, institute State pearl and be located at the infundibulate the bottom of the device.
- A kind of 2. pearl multi-surface detection device based on machine vision according to claim 1, it is characterised in that：It is described Video camera is continuously shot video equipment for pearl, and the video camera is connected by circuit with computer PC ends.
- A kind of 3. pearl multi-surface detection device based on machine vision according to claim 1, it is characterised in that：It is described Infundibulate device includes funnel-shaped part and air compressor.
- A kind of 4. pearl multi-surface detection device based on machine vision according to claim 1, it is characterised in that：It is described The compressed air pressure that air compressor produces is 0.04MPa.
- A kind of 5. pearl multi-surface detection device based on machine vision according to claim 1, it is characterised in that：It is described Infundibulate device inner wall is black.
- A kind of 6. pearl multi-surface detection device based on machine vision according to claim 1, it is characterised in that：It is described Infundibulate device shape is the circular cone of a handstand, and the annular LED light source is located on the extended line of element of cone.
- A kind of 7. pearl multi-surface detection device based on machine vision according to claim 1, it is characterised in that：It is described Infundibulate device and air induction conduit connecting place set a pillar support.
- A kind of 8. pearl multi-surface detection device based on machine vision according to claim 7, it is characterised in that：It is described Pillar support is highly 1-2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720848342.8U CN207263303U (en) | 2017-07-13 | 2017-07-13 | A kind of pearl multi-surface detection device based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720848342.8U CN207263303U (en) | 2017-07-13 | 2017-07-13 | A kind of pearl multi-surface detection device based on machine vision |
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| Publication Number | Publication Date |
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| CN207263303U true CN207263303U (en) | 2018-04-20 |
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| CN201720848342.8U Withdrawn - After Issue CN207263303U (en) | 2017-07-13 | 2017-07-13 | A kind of pearl multi-surface detection device based on machine vision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389195A (en) * | 2017-07-13 | 2017-11-24 | 浙江农林大学 | A kind of pearl multi-surface detection means based on machine vision |
-
2017
- 2017-07-13 CN CN201720848342.8U patent/CN207263303U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389195A (en) * | 2017-07-13 | 2017-11-24 | 浙江农林大学 | A kind of pearl multi-surface detection means based on machine vision |
| CN107389195B (en) * | 2017-07-13 | 2018-11-13 | 浙江农林大学 | A kind of pearl multi-surface detection device based on machine vision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180420 Effective date of abandoning: 20181113 |