CN113125459A - Improve reflector structure of fruit surface detection camera uniformity of picking up picture - Google Patents
Improve reflector structure of fruit surface detection camera uniformity of picking up picture Download PDFInfo
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- CN113125459A CN113125459A CN202110412029.0A CN202110412029A CN113125459A CN 113125459 A CN113125459 A CN 113125459A CN 202110412029 A CN202110412029 A CN 202110412029A CN 113125459 A CN113125459 A CN 113125459A
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- seat
- picking
- uniformity
- connecting ring
- surface detection
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- 235000013399 edible fruits Nutrition 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000005286 illumination Methods 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 241000220225 Malus Species 0.000 description 31
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 235000021016 apples Nutrition 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- 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
-
- 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
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sorting Of Articles (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a reflector structure for improving the picking uniformity of a fruit surface detection camera, which comprises a connecting ring and an illuminating seat, wherein the connecting ring is arranged above the illuminating seat, the upper end of the connecting ring is fixedly provided with a plurality of cylinders, the lower end of the connecting ring is fixedly provided with a plurality of connecting columns, the lower ends of the connecting columns are all connected with lifting columns in a sliding manner, and the front end of the illuminating seat is fixedly provided with a sensor; a support frame is arranged below the lighting seat, a plurality of transmission wheels are connected inside the support frame, transmission columns penetrate through the transmission wheels, transmission belts are connected to the outer surfaces of the transmission columns, and a first support plate is fixedly mounted on one side of the support frame; the problem of can not adjust the irradiation distance of light among the current scheme of solution for the formation of image of saturation region influence fruit leads to the not good of the degree of accuracy of apple sorting.
Description
Technical Field
The invention relates to the technical field of fruit detection, in particular to a reflector structure for improving the image picking uniformity of a fruit surface detection camera.
Background
The existing fruits need to be screened before sale, and if the fruit quality cannot be effectively mastered, the selection of consumers and the public praise of suppliers are influenced. Therefore, it is essential to check and grade the quality of the fruit before selling the fruit.
In the existing apple sorting process, because the surface of the apple is smooth and the surface is convex, when a light source irradiates the surface of the apple, the reflected light on the surface easily enters a camera, so that an image signal collected by the camera is saturated, and the data collected on the surface of the apple is inaccurate.
Disclosure of Invention
The invention aims to provide a reflector structure for improving the image picking uniformity of a fruit surface detection camera, which is used for solving the problem that the accuracy of apple sorting is poor due to the fact that the imaging of fruits is influenced by a saturated area because the irradiation distance of light cannot be adjusted in the existing scheme.
The purpose of the invention can be realized by the following technical scheme:
a reflector structure for improving the uniformity of picking pictures of a fruit surface detection camera comprises a connecting ring and a lighting seat, wherein the connecting ring is arranged above the lighting seat, the upper end of the connecting ring is fixedly provided with a plurality of air cylinders, the lower end of the connecting ring is fixedly provided with a plurality of connecting columns, the lower ends of the connecting columns are all connected with lifting columns in a sliding manner, and the front end of the lighting seat is fixedly provided with a sensor;
the below of illumination seat is provided with the support frame, the internal connection of support frame has a plurality of transmission wheel, a plurality of transmission post has all been run through to the inside of transmission wheel, a plurality of the surface of transmission post all is connected with the transmission band, one side fixed mounting of support frame has first backup pad, the opposite side fixed mounting of support frame has second backup pad and motor, and this motor is located the rear of second backup pad, first backup pad and second backup pad all with go-between fixed connection.
Furthermore, the lower extreme of lift post and the last fixed surface of illumination seat are connected, the upper end fixedly connected with first connecting plate of first backup pad, the upper end fixedly connected with second connecting plate of second backup pad, be connected with the seat of making a video recording between first connecting plate and the second connecting plate.
Furthermore, a camera is fixedly installed at the lower end of the camera seat, and a plurality of lamp beads are installed at the lower end of the illuminating seat.
Further, the connecting ring and the lighting seat are both hollow.
Furthermore, a plurality of the cylinders are arranged at the upper end of the connecting ring at equal intervals.
Further, the illumination seat moves up and down through the lifting column.
Furthermore, the outer surfaces of the plurality of transmission wheels are fixedly connected with protective pads in a glued mode.
The invention has the beneficial effects that:
the utility model discloses a through using annular illumination light source, make the facula that shines the apple surface be circular, the brightest region is at the edge of apple, the light of the protruding center department of apple is weaker, can effectively reduce the influence of the brightest part in the apple image of gathering, and change the distance between the apple center and the light source through the position of adjustment light source, make the strongest part in the light source facula be located the apple edge all the time, like this camera is when gathering the apple image, the edge of apple is far away from the camera, but the light intensity of edge part is stronger, the center of apple is nearer to the camera, and the half mirror surface reverberation on apple center surface easily gets into in the camera, but the light intensity of center part is weaker, therefore the apple image of gathering is whole comparatively even, the condition that the apple image center is saturated and the edge is very dark can not appear, the whole bright homogeneity of apple image has been improved, a good condition is provided for subsequent processing, the accuracy of apple sorting is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view of a reflector structure for improving uniformity of picking patterns of a fruit surface inspection camera according to the present invention;
fig. 2 is a side view of the connection ring to the light socket in the present invention.
In the figure: 1. a support frame; 2. a first support plate; 3. a second support plate; 4. a connecting ring; 5. a cylinder; 6. connecting columns; 7. a lifting column; 8. a lighting base; 9. a sensor; 10. a first connecting plate; 11. a second connecting plate; 12. a camera seat; 13. a camera; 14. a transmission wheel; 15. a transfer column; 16. and (5) conveying the belt.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, a reflector structure for improving uniformity of picking pictures by a fruit surface detection camera comprises a connecting ring 4 and a lighting seat 8, wherein the connecting ring 4 is installed above the lighting seat 8, a plurality of air cylinders 5 are fixedly installed at the upper end of the connecting ring 4, a plurality of connecting columns 6 are fixedly installed at the lower end of the connecting ring 4, the lower ends of the connecting columns 6 are all connected with lifting columns 7 in a sliding manner, and a sensor 9 is fixedly installed at the front end of the lighting seat 8;
the below of illumination seat 8 is provided with support frame 1, the internal connection of support frame 1 has a plurality of transmission wheel 14, a plurality of transmission wheel 14's inside has all been run through transmission post 15, a plurality of transmission post 15's surface all is connected with transmission band 16, one side fixed mounting of support frame 1 has first backup pad 2, the opposite side fixed mounting of support frame 1 has second backup pad 3 and motor, and this motor is located the rear of second backup pad 3, first backup pad 2 and second backup pad 3 all with go-between 4 fixed connection.
The lower extreme of lift post 7 is connected with the last fixed surface of illumination seat 8, the upper end fixedly connected with first connecting plate 10 of first backup pad 2, the upper end fixedly connected with second connecting plate 11 of second backup pad 3, be connected with between first connecting plate 10 and the second connecting plate 11 and take a photograph of seat 12.
A camera 13 is fixedly arranged at the lower end of the camera seat 12, and a plurality of lamp beads are arranged at the lower end of the illuminating seat 8; wherein, camera 13 is used for making a video recording the fruit of transportation and gathers, and the lamp pearl is used for providing the light source.
The connecting ring 4 and the lighting seat 8 are both hollow; the light that is convenient for produce the lamp pearl is propagated and is injectd.
The plurality of cylinders 5 are arranged at the upper end of the connecting ring 4 at equal intervals; the air cylinder 5 can be an electric air cylinder with the model number of SC80 and is used for driving the plurality of lifting columns 7 to slide up and down at the lower ends of the plurality of connecting columns 6 and improving the moving stability.
The lighting base 8 is moved up and down by the elevating column 7.
The outer surfaces of the plurality of transmission wheels 14 are all fixedly connected with protective pads in a gluing way; the protection pad is used for protecting the fruits to be screened.
The working principle of the invention is as follows: the inner surface of the transmission belt 16 is provided with a driving column near the rear end, the driving column is connected with a motor, the motor is started to drive the driving column to rotate, the transmission columns 15 are driven to rotate by the driving column and the transmission belt 16, the transmission columns 15 drive the transmission wheels 14 to rotate, fruits are placed on the transmission wheels 14 to be transported, the fruits are in contact with the protection pads on the surfaces of the transmission wheels 14 and move from left to right, and the fruits can be apples; when fruits are transported to the position right below the sensor 9, the sensor 9 is used for acquiring size data of the apples, the sensor 9 can be an image sensor and sends the size data to a PLC (programmable logic controller) in the connecting ring 4, and the PLC generates a control signal set according to the size data; wherein the control signal set comprises a control rising signal and a control falling signal; comparing the size value in the size data with a preset standard size range, and generating a control ascending signal when the size value is not greater than the minimum value of the standard size range; when the size value is not less than the maximum value of the standard size range, a control descending signal is generated, a plurality of air cylinders 5 are started to run simultaneously by using a control signal set, the lifting columns 7 ascend or descend at a constant speed simultaneously through a plurality of connecting columns 6, the positions of the illuminating bases 8 are adjusted by up-and-down movement of the lifting columns 7, the brightest parts in the illuminating areas of a plurality of lamp beads are always in the edge area of the apple, an apple image is obtained by shooting through a camera 13, the area of the saturated area on the apple image is reduced, and the accuracy of apple sorting is improved; when the lamp beads are used for illuminating the surface of the apple, the surface of the apple is easy to reflect light, and the reflected light comprises semi-specular reflected light and diffused light; the semi-specular reflection light and the light illuminated to the surface of the apple by the light source are symmetrical with the arc normal of the surface of the apple, and the light intensity is strong; the angle of diffused light is relatively divergent, and the light intensity is relatively weak; generally, when the camera 13 collects an apple image, diffused light enters the lens of the camera 13, damage information and color information on the surface of the apple can be accurately and clearly identified, but when semi-specular reflection light enters the camera 13, the apple image collected by the camera 13 is saturated due to overlarge incident light intensity, so that the damage information and the color information on the surface of the apple are inaccurate.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The reflecting shade structure for improving the picking uniformity of the fruit surface detection camera is characterized by comprising a connecting ring (4) and an illuminating seat (8), wherein the connecting ring (4) is installed above the illuminating seat (8), a plurality of air cylinders (5) are fixedly installed at the upper end of the connecting ring (4), a plurality of connecting columns (6) are fixedly installed at the lower end of the connecting ring (4), the lower ends of the connecting columns (6) are all connected with lifting columns (7) in a sliding mode, and a sensor (9) is fixedly installed at the front end of the illuminating seat (8);
the below of illumination seat (8) is provided with support frame (1), the internal connection of support frame (1) has a plurality of transmission wheel (14), a plurality of transmission post (15), a plurality of have all been run through to the inside of transmission wheel (14) the surface of transmission post (15) all is connected with transmission band (16), one side fixed mounting of support frame (1) has first backup pad (2), the opposite side fixed mounting of support frame (1) has second backup pad (3) and motor, and this motor is located the rear of second backup pad (3), first backup pad (2) and second backup pad (3) all with go-between (4) fixed connection.
2. The reflecting shade structure for improving the uniformity of picking up pictures by a fruit surface detection camera according to claim 1, wherein the lower end of the lifting column (7) is fixedly connected with the upper surface of the lighting seat (8), the upper end of the first supporting plate (2) is fixedly connected with a first connecting plate (10), the upper end of the second supporting plate (3) is fixedly connected with a second connecting plate (11), and a camera seat (12) is connected between the first connecting plate (10) and the second connecting plate (11).
3. The reflector structure for improving the uniformity of picking up pictures by a fruit surface detection camera according to claim 2, wherein a camera (13) is fixedly mounted at the lower end of the camera seat (12), and a plurality of lamp beads are mounted at the lower end of the lighting seat (8).
4. The reflector structure for improving the uniformity of picking patterns of a fruit surface detection camera according to claim 3, wherein the connecting ring (4) and the lighting seat (8) are both hollow.
5. The reflector structure for improving the uniformity of picking patterns of a fruit surface detection camera according to claim 4, wherein a plurality of cylinders (5) are arranged at the upper end of the connecting ring (4) at equal intervals.
6. The reflector structure for improving the uniformity of picking patterns of a fruit surface detection camera according to claim 5, wherein the illumination base (8) is moved up and down by a lifting column (7).
7. The reflector structure for improving the uniformity of picking patterns of a fruit surface detection camera according to claim 6, wherein the outer surfaces of the plurality of transmission wheels (14) are fixed with protective pads by gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412029.0A CN113125459A (en) | 2021-04-16 | 2021-04-16 | Improve reflector structure of fruit surface detection camera uniformity of picking up picture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412029.0A CN113125459A (en) | 2021-04-16 | 2021-04-16 | Improve reflector structure of fruit surface detection camera uniformity of picking up picture |
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| CN113125459A true CN113125459A (en) | 2021-07-16 |
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| CN202110412029.0A Pending CN113125459A (en) | 2021-04-16 | 2021-04-16 | Improve reflector structure of fruit surface detection camera uniformity of picking up picture |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085563A (en) * | 1994-06-20 | 1996-01-12 | Shirayanagishiki Senkaki Kk | Indirect illumination polygonal photographic unit employed in camera sorter for massive vegetables and fruits |
| CN1661361A (en) * | 2005-01-31 | 2005-08-31 | 浙江大学 | Detection method suited on surface of spherical fruit triggered to collect images based on need and equipment |
| CN2856988Y (en) * | 2005-07-13 | 2007-01-10 | 浙江大学 | Fruit size compensating system for on-line light characteristic of detecting inside quality of fruit |
| JP2010210355A (en) * | 2009-03-09 | 2010-09-24 | Kobe Univ | Method and apparatus for nondestructive measurement of component of vegetable etc. using near-infrared spectroscopy |
| CN102735612A (en) * | 2011-04-02 | 2012-10-17 | 北京神农谷科技有限公司 | Light source position detection and positioning system |
| CN204996733U (en) * | 2015-09-05 | 2016-01-27 | 黑龙江傲立辅龙科技开发有限公司 | Apple is testing system in grades in real time based on computer vision |
| CN105954297A (en) * | 2016-07-14 | 2016-09-21 | 石河子大学 | Key component design of online appearance detection system for large-sized fruits |
| CN109499915A (en) * | 2018-11-10 | 2019-03-22 | 东莞理工学院 | A kind of online vision detection system for apple sorting device |
| CN110168445A (en) * | 2016-12-30 | 2019-08-23 | 韩国现代福美斯株式会社 | The illumination automatic control device of the output power of lighting device is linked and adjusted with the distance between reference object and lighting device |
| CN110865158A (en) * | 2019-12-10 | 2020-03-06 | 浙江大学 | Nondestructive testing device and method for internal quality of fruit |
| CN111693537A (en) * | 2020-07-23 | 2020-09-22 | 中国计量大学 | Visual detection device and method for surface scratches of retainer of plane thrust bearing |
| CN212031293U (en) * | 2020-05-15 | 2020-11-27 | 广东省农业科学院农产品公共监测中心 | Target self-adaptive visible near-infrared detection light source posture adjusting device |
-
2021
- 2021-04-16 CN CN202110412029.0A patent/CN113125459A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085563A (en) * | 1994-06-20 | 1996-01-12 | Shirayanagishiki Senkaki Kk | Indirect illumination polygonal photographic unit employed in camera sorter for massive vegetables and fruits |
| CN1661361A (en) * | 2005-01-31 | 2005-08-31 | 浙江大学 | Detection method suited on surface of spherical fruit triggered to collect images based on need and equipment |
| CN2856988Y (en) * | 2005-07-13 | 2007-01-10 | 浙江大学 | Fruit size compensating system for on-line light characteristic of detecting inside quality of fruit |
| JP2010210355A (en) * | 2009-03-09 | 2010-09-24 | Kobe Univ | Method and apparatus for nondestructive measurement of component of vegetable etc. using near-infrared spectroscopy |
| CN102735612A (en) * | 2011-04-02 | 2012-10-17 | 北京神农谷科技有限公司 | Light source position detection and positioning system |
| CN204996733U (en) * | 2015-09-05 | 2016-01-27 | 黑龙江傲立辅龙科技开发有限公司 | Apple is testing system in grades in real time based on computer vision |
| CN105954297A (en) * | 2016-07-14 | 2016-09-21 | 石河子大学 | Key component design of online appearance detection system for large-sized fruits |
| CN110168445A (en) * | 2016-12-30 | 2019-08-23 | 韩国现代福美斯株式会社 | The illumination automatic control device of the output power of lighting device is linked and adjusted with the distance between reference object and lighting device |
| CN109499915A (en) * | 2018-11-10 | 2019-03-22 | 东莞理工学院 | A kind of online vision detection system for apple sorting device |
| CN110865158A (en) * | 2019-12-10 | 2020-03-06 | 浙江大学 | Nondestructive testing device and method for internal quality of fruit |
| CN212031293U (en) * | 2020-05-15 | 2020-11-27 | 广东省农业科学院农产品公共监测中心 | Target self-adaptive visible near-infrared detection light source posture adjusting device |
| CN111693537A (en) * | 2020-07-23 | 2020-09-22 | 中国计量大学 | Visual detection device and method for surface scratches of retainer of plane thrust bearing |
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Application publication date: 20210716 |