CN108273769A - A kind of product surface quality detecting system based on machine vision technique - Google Patents
A kind of product surface quality detecting system based on machine vision technique Download PDFInfo
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- CN108273769A CN108273769A CN201810332218.5A CN201810332218A CN108273769A CN 108273769 A CN108273769 A CN 108273769A CN 201810332218 A CN201810332218 A CN 201810332218A CN 108273769 A CN108273769 A CN 108273769A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000002950 deficient Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 14
- 230000002159 abnormal effect Effects 0.000 claims 1
- 239000006227 byproduct Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The product surface quality detecting system based on machine vision technique that the invention discloses a kind of, including image lighting system, video acquisition unit, image pick-up card, image processing unit, control unit, the unit that tests the speed, execution unit, alarm unit；Described image lighting system is for illuminating the product surface in video acquisition unit acquisition range；The video acquisition unit for acquiring product surface image information in real time；Described image capture card is used to image information carrying out compression processing；Described control unit is for receiving image processing unit data and control execution unit；The slewing rate of the unit for measuring execution unit that test the speed；The alarm unit is for sending out sound and light alarm signal.The present invention can significantly more efficient detection product surface quality, and can show faulty materials image, and identify flaw location, the lossless product of automatic sorting and faulty materials improve detection efficiency.
Description
Technical field
The present invention relates to product surface quality detection field more particularly to a kind of product surfaces based on machine vision technique
Quality detecting system.
Background technology
Persistently increase along with the fast development and foreign trade of the industries such as China's manufacturing industry, construction industry and water conservancy, environment
Long, China's quality inspection detection industry has also welcome fast development.NI Vision Builder for Automated Inspection refers to by machine vision product, such as
The target being ingested is converted into picture signal, sends dedicated image processing system to by CCD, CMOS and photoelectric tube etc., according to
The information such as pixel distribution and brightness, color, are transformed into digitized signal；Picture system carries out various operations to take out to these signals
Clarification of objective is taken, further according to the equipment at the output control scene of differentiation.Product quality can be improved, reduce rejection rate, improved
Business Economic Benefit.The raising of China's Living consumption will continue to press on the consumer goods and life science detection demand rises, system
Making industry fast development and industrial upgrading will push industrial goods detection demand to rise.But traditional artificial visual method, detection effect
Rate is low, and testing result and quality and the experience of testing staff have relationship, testing result inaccurate.
To solve the above-mentioned problems, the present invention proposes a kind of product surface quality detection system based on machine vision technique
System.
Invention content
To solve the above-mentioned problems, the present invention proposes a kind of product surface quality detection system based on machine vision technique
System.
Specifically, the purpose of the present invention is achieved through the following technical solutions：A kind of product based on machine vision technique
Surface Quality Inspection System, including image lighting system, video acquisition unit, image pick-up card, image processing unit, control list
Member, the unit that tests the speed, execution unit, alarm unit；
Described image lighting system is connected by RS232 buses with control unit, for acquiring model to being in video acquisition unit
Product surface in enclosing is illuminated, and image information clarity is improved；
The video acquisition unit is connected by coaxial cable with image pick-up card, for acquiring product surface image letter in real time
Breath, and the image collected information is sent to image pick-up card；
Described image capture card is connected by cable with image processing unit, the image for receiving video acquisition unit transmission
Information simultaneously carries out compression processing, and image is sent to image processing unit by treated；
Described control unit is connected by RS485 buses with image processing unit, for receive image processing unit data and
Control execution unit；
The unit that tests the speed is connected with control unit and execution unit respectively, the slewing rate for measuring execution unit；
The alarm unit is connected by common I/O mouthfuls with control unit, is used for when finding surface defects of products, by controlling
Unit controls it and sends out sound and light alarm signal.
Further, described image lighting system includes linear light sorurce and flattening device, and linear light sorurce is for generating illumination
Energy is concentrated, the uniform light belt of light distribution；Flattening device is swept for making detection object move to video acquisition unit
Distortion is not generated when retouching near line.
Further, described image processing unit is High performance industrial PC, is calculated for passing through high accuracy positioning image registration
Method, spot-analysis algorithm handle image, when detecting that product surface quality has flaw, show flaw image, and
Identify flaw location.
Further, the video acquisition unit is CCD digital cameras.
Further, the execution unit includes conveyer belt and product sorting device.
Further, the unit that tests the speed is 500 line Omron photoelectric encoders, for measuring line speed, then root
The filming frequency of video acquisition unit is controlled by control unit according to surveyed parameter.
Further, described control unit is Omron PLC control system, is used for real-time control alarm unit, sends out simultaneously
Go out I/O control instructions, lossless product and defective are sorted to different zones by control product sorting device.
Further, the alarm unit includes LED light and buzzer.
The beneficial effects of the present invention are：The present invention uses machine vision technique, i.e., replaces human eye with machine to measure
And judgement, can significantly more efficient detection product surface quality, and can show faulty materials image, and identify flaw location.
Lossless product and defective can be sorted to different zones by automatic sorting device, save artificial and improve detection effect
Rate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control illustrates this hair
Bright specific implementation mode.
A kind of product surface quality detecting system based on machine vision technique, including image lighting system, video acquisition
Unit, image pick-up card, image processing unit, control unit, the unit that tests the speed, execution unit, alarm unit；
Described image lighting system is connected by RS232 buses with control unit, for acquiring model to being in video acquisition unit
Product surface in enclosing is illuminated, and image information clarity is improved；
The video acquisition unit is connected by coaxial cable with image pick-up card, for acquiring product surface image letter in real time
Breath, and the image collected information is sent to image pick-up card；
Described image capture card is connected by cable with image processing unit, the image for receiving video acquisition unit transmission
Information simultaneously carries out compression processing, and image is sent to image processing unit by treated；
Described control unit is connected by RS485 buses with image processing unit, for receive image processing unit data and
Control execution unit；
The unit that tests the speed is connected with control unit and execution unit respectively, the slewing rate for measuring execution unit；
The alarm unit is connected by common I/O mouthfuls with control unit, is used for when finding surface defects of products, by controlling
Unit controls it and sends out sound and light alarm signal.
Further, described image lighting system includes linear light sorurce and flattening device, and linear light sorurce is for generating illumination
Energy is concentrated, the uniform light belt of light distribution；Flattening device is swept for making detection object move to video acquisition unit
Distortion is not generated when retouching near line.
Further, described image processing unit is High performance industrial PC, is calculated for passing through high accuracy positioning image registration
Method, spot-analysis algorithm handle image, when detecting that product surface quality has flaw, show flaw image, and
Identify flaw location.
Further, the video acquisition unit is CCD digital cameras.
Further, the execution unit includes conveyer belt and product sorting device.
Further, the unit that tests the speed is 500 line Omron photoelectric encoders, for measuring line speed, then root
The filming frequency of video acquisition unit is controlled by control unit according to surveyed parameter.
Further, described control unit is Omron PLC control system, is used for real-time control alarm unit, sends out simultaneously
Go out I/O control instructions, lossless product and defective are sorted to different zones by control product sorting device.
Further, the alarm unit includes LED light and buzzer.
It should be noted that for each embodiment of the method above-mentioned, for simple description, therefore it is all expressed as to a system
The combination of actions of row, but those skilled in the art should understand that, the application is not limited by the described action sequence, because
For according to the application, certain some step can be performed in other orders or simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and unit not necessarily this Shen
It please be necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, may refer to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, ROM, RAM etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (8)
1. a kind of product surface quality detecting system based on machine vision technique, which is characterized in that including image lighting system,
Video acquisition unit, image pick-up card, image processing unit, control unit, the unit that tests the speed, execution unit, alarm unit；
Described image lighting system is connected by RS232 buses with control unit, for acquiring model to being in video acquisition unit
Product surface in enclosing is illuminated, and image information clarity is improved；
The video acquisition unit is connected by coaxial cable with image pick-up card, for acquiring product surface image letter in real time
Breath, and the image collected information is sent to image pick-up card；
Described image capture card is connected by cable with image processing unit, the image for receiving video acquisition unit transmission
Information simultaneously carries out compression processing, and image is sent to image processing unit by treated；
Described control unit is connected by RS485 buses with image processing unit, for receive image processing unit data and
Control execution unit；
The unit that tests the speed is connected with control unit and execution unit respectively, the slewing rate for measuring execution unit；
The alarm unit is connected by common I/O mouthfuls with control unit, is used for when finding surface defects of products, by controlling
Unit controls it and sends out sound and light alarm signal.
2. the product surface quality detecting system according to claim 1 based on machine vision technique, which is characterized in that institute
It includes linear light sorurce and flattening device to state image lighting system, and linear light sorurce is used to generate illumination energy concentration, light distribution
A uniform light belt；Flattening device is abnormal for not generated when detection object being made to move near video acquisition unit scan line
Become.
3. the product surface quality detecting system according to claim 1 based on machine vision technique, which is characterized in that institute
It is High performance industrial PC to state image processing unit, for passing through high accuracy positioning image registration algorithm, spot-analysis algorithm to figure
As being handled, when detecting that product surface quality has flaw, flaw image is shown, and identify flaw location.
4. the product surface quality detecting system according to claim 1 based on machine vision technique, which is characterized in that institute
It is CCD digital cameras to state video acquisition unit.
5. the product surface quality detecting system according to claim 1 based on machine vision technique, which is characterized in that institute
It includes conveyer belt and product sorting device to state execution unit.
6. the product surface quality detecting system according to claim 5 based on machine vision technique, which is characterized in that institute
It is 500 line Omron photoelectric encoders to state the unit that tests the speed, single by controlling further according to surveyed parameter for measuring line speed
The filming frequency of member control video acquisition unit.
7. the product surface quality detecting system according to claim 5 based on machine vision technique, which is characterized in that institute
It is Omron PLC control system to state control unit, is used for real-time control alarm unit, is simultaneously emitted by I/O control instructions, control production
Lossless product and defective are sorted to different zones by product sorting equipment.
8. the product surface quality detecting system according to claim 1 based on machine vision technique, which is characterized in that institute
It includes LED light and buzzer to state alarm unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332218.5A CN108273769A (en) | 2018-04-13 | 2018-04-13 | A kind of product surface quality detecting system based on machine vision technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332218.5A CN108273769A (en) | 2018-04-13 | 2018-04-13 | A kind of product surface quality detecting system based on machine vision technique |
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| Publication Number | Publication Date |
|---|---|
| CN108273769A true CN108273769A (en) | 2018-07-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810332218.5A Withdrawn CN108273769A (en) | 2018-04-13 | 2018-04-13 | A kind of product surface quality detecting system based on machine vision technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596625A (en) * | 2019-02-01 | 2019-04-09 | 东莞中科蓝海智能视觉科技有限公司 | Workpiece, defect detection recognition method in charging tray |
| CN109604187A (en) * | 2018-11-29 | 2019-04-12 | 芜湖常瑞汽车部件有限公司 | A kind of part Automated Sorting System and method based on computer vision technique |
| CN114101095A (en) * | 2020-08-27 | 2022-03-01 | 合肥美亚光电技术股份有限公司 | Control method of sorting equipment and sorting equipment |
| CN115201208A (en) * | 2022-08-04 | 2022-10-18 | 扬州安睿自动化科技有限公司 | Online flaw detection method and device for plane packet |
-
2018
- 2018-04-13 CN CN201810332218.5A patent/CN108273769A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604187A (en) * | 2018-11-29 | 2019-04-12 | 芜湖常瑞汽车部件有限公司 | A kind of part Automated Sorting System and method based on computer vision technique |
| CN109596625A (en) * | 2019-02-01 | 2019-04-09 | 东莞中科蓝海智能视觉科技有限公司 | Workpiece, defect detection recognition method in charging tray |
| CN114101095A (en) * | 2020-08-27 | 2022-03-01 | 合肥美亚光电技术股份有限公司 | Control method of sorting equipment and sorting equipment |
| CN114101095B (en) * | 2020-08-27 | 2024-01-05 | 合肥美亚光电技术股份有限公司 | Control method of sorting equipment and sorting equipment |
| CN115201208A (en) * | 2022-08-04 | 2022-10-18 | 扬州安睿自动化科技有限公司 | Online flaw detection method and device for plane packet |
| CN115201208B (en) * | 2022-08-04 | 2023-09-08 | 扬州安睿自动化科技有限公司 | Method and device for detecting online flaws of planar package |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180713 |
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| WW01 | Invention patent application withdrawn after publication |