CN110174406B - Solar cell image acquisition structure - Google Patents
Solar cell image acquisition structure Download PDFInfo
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- CN110174406B CN110174406B CN201910406185.9A CN201910406185A CN110174406B CN 110174406 B CN110174406 B CN 110174406B CN 201910406185 A CN201910406185 A CN 201910406185A CN 110174406 B CN110174406 B CN 110174406B
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- support
- light source
- camera
- diffusion plate
- sliding table
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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
- G01N21/8806—Specially adapted optical and illumination features
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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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
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8822—Dark field detection
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses an image acquisition structure of a solar cell, belongs to the technical field of visual detection of the solar cell, and solves the problems of uneven illumination of the cell, difficult operation in a darkroom and difficult resetting of an adjusting effect, and the technical scheme is as follows: the diffusion plate, the light source support and the camera support are arranged on the whole support, the positions of the diffusion plate, the light source support and the camera support can be adjusted as required, angle adjustment is added on the diffusion plate, and the diffusion plate is matched with the light source to realize balanced illumination, so that the recovery degree of the acquired image is higher, the influence of the camera and the light source on image acquisition is accurately adjusted by using the scale of the lifting sliding table, the resetting of an adjusting effect is convenient, a flexible plate is pasted between the light source support and the camera support to form a darkroom cavity, and the stable light between the camera and the light source is ensured.
Description
Technical Field
The invention relates to the technical field of solar cell visual inspection, in particular to an image acquisition structure of a solar cell.
Background
The production of solar wafer can make the wafer produce multiple product defects such as color difference, damage, hourglass thick liquid in with the transmission process, and traditional mode is selected separately the wafer through artifical visual, and this kind of mode inefficiency just selects separately the standard and differs because of the people. The machine vision method is added to make the detection process be completed by a computer, but all the vision detection methods depend on the imaging effect of a camera, so that an applicable image capturing structure is required. The Chinese invention patent (an image acquisition device for the visual inspection of a liquid crystal display, which is entitled with a publication number: CN 102393577B) provides an automatically controlled traversing and longitudinally moving structure, which controls a camera to automatically complete the imaging problem of a large shooting object, but the adjustment direction can only realize two degrees of freedom in the transverse direction and the longitudinal direction and can not be accurately adjusted by manpower, and in addition, the structure has no darkroom and diffuse reflection structure, so that the uneven illumination caused by the problems of light reflection and light leakage in the shooting process can not be avoided, and the structure is suitable for shooting a large liquid crystal screen and is not suitable for a solar cell with a smooth surface; the box-shaped imaging structure provided by 'CMOS image sensor-based solar cell defect detection system design [ J ]' (instrument technology and sensor: 2018.1: 60-63) of Sunzhi, curiosity, and the like neglects the light reflection effect of the cell, when light irradiates on the cell to form a light reflection point, light spots influencing visual detection exist in an imaging result, and uneven reflection of the light on the cell also distorts the color in the imaging effect, so that the color cannot be sorted through the visual detection; the structure of the former invention patent (silicon cell blue film detection system and image acquisition device thereof, application publication No. CN 108447798A) is additionally provided with a rotating shaft capable of adjusting the angle of a camera and the angle of a light source, and the method can adjust the camera and the light source to reduce the reflection of light of a cell, so that the illumination is as uniform as possible, but the influence of the reflection of light on the imaging effect can not be eliminated; simultaneously, a plurality of adjustable rotation axis all do not have the scale indication, are difficult to resume position once at every turn after the manual adjustment, and the transmission of whole structure and battery piece all uses the darkroom parcel, and the installation is difficult, and the manual work of assembly line transmission during operation observes the difficulty.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a solar cell image acquisition structure, which can balance the influence effect of ambient light and a light source, and is convenient for an operator to operate in real time by a lifting sliding table with scales and a darkroom cavity independent of a transmission structure of a cell.
In order to achieve the purpose, the invention provides the following technical scheme:
a solar cell image acquisition structure comprises an integral support, a camera support, a lifting sliding table, a light source support and a diffusion plate, wherein the integral support is respectively provided with the camera support, the light source support and the diffusion plate from top to bottom; the lifting sliding table is arranged on the cylindrical rod in two layers, a camera support is arranged on the upper layer of lifting sliding table, a light source support is arranged on the lower layer of lifting sliding table, a telescopic plate is arranged between the camera support and the light source support, the camera support, the light source support and the telescopic plate are connected to form a darkroom cavity, and a gear structure and scales for accurately adjusting the height and the inclination angle are arranged on the lifting sliding table; the diffusion plate is mounted on the integral support by using a diffusion plate support with an adjustable angle.
Further, the plane light source is fixed on the base by using an L-shaped bracket A.
Further, a lens round hole is formed in the center of the camera support, an L-shaped support B used for fixing the camera is installed on one side of the lens round hole, and hook face nylon buckle strips are adhered to the periphery of the side face of the camera support.
Further, the light source bracket is rectangular and annular, a light source is arranged on the light source bracket, and a U-shaped fixed bracket is arranged on the light source bracket on the surface opposite to the diffusion plate; hook surface nylon hasp strips are pasted around the side surface of the light source support.
Furthermore, a threaded hole for fixing is formed in the middle of the U-shaped fixing support, circular-arc-shaped notches are formed in the two ends of the U-shaped fixing support, scales are marked on the periphery of each notch, and the light source is installed on the U-shaped fixing support through a screw B.
Furthermore, the number of the lifting sliding tables is 8, each lifting sliding table comprises a sliding table block, an adjusting knob, a lifting table and a fixing support, a round hole A which is sleeved on the cylindrical rod is formed in the sliding table block, and the sliding table block is fixed on the cylindrical rod through a screw A; a round hole B for fixing an adjusting knob of the lifting platform is formed in the sliding platform block, and the adjusting knob is screwed and fixed by using a screw B; a gear structure capable of moving the position of the lifting table is arranged on one side, connected with the sliding table block, of the lifting table, scales for accurately adjusting the height of the lifting table are arranged on the side face of the gear structure, a fixing support for mounting a camera support and a light source support is welded on the back face of the gear structure on the lifting table, and the camera support and the light source support are fixedly mounted on the lifting sliding table through threaded holes in the fixing support; the adjusting knob is provided with a gear structure which can be matched with the lifting platform.
Furthermore, the number of the diffusion plates is 4, the panel is a transparent particle plate, the periphery of the side face of the panel is provided with circular guide rail grooves, the diffusion plates are connected with the diffusion plate support through spherical connecting rods, and the diffusion plates are arranged between the adjacent cylindrical rods.
Further, set up round hole C on the diffusion plate support and cup joint on the cylinder pole to it is fixed to use screw A, set up spherical groove on the diffusion plate support, the spherical structure of spherical connecting rod is installed in the circular guide rail inslot of spherical groove and diffusion plate.
In conclusion, the invention has the following beneficial effects:
according to the darkroom cavity, the telescopic plate made of black light absorption materials is only wrapped between the camera most prone to causing glare and the light source, an open environment is adopted between the light source and the battery piece, the illumination uniformity is adjusted only through the diffusion plate, and the influence effect of ambient light and the light source is balanced; the transmission of the battery piece is not wrapped in a darkroom, so that uneven illumination caused by light leakage of the darkroom is avoided, an operator can conveniently observe the state of the battery piece in the photographing process, the whole structure can be easily disassembled and assembled, and convenience is brought to the real-time operation of the operator; according to the invention, the light source with smaller volume is arranged on the U-shaped fixing frame, the installation angle of the light source is adjusted through the circular arc-shaped notch marked with the scale, and the scattering direction of the light source is adjusted through the plurality of diffusion plates with adjustable height and angle, so that the collected image has higher reduction degree, and the problem of uneven illumination is effectively solved; the lifting sliding table with the scales can provide accurate weighing values in the adjusting process and can quickly restore to a certain effect of previous adjustment.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a partial block diagram of the base and light source of the present invention;
FIG. 3 is a partial block diagram of a camera bracket and light source bracket according to the present invention;
fig. 4 is an exploded view of the structure of the slide table of the present invention;
FIG. 5 is a gear structure view of the slide table of the present invention;
FIG. 6 is a block diagram of a U-shaped light source bracket of the present invention;
fig. 7 is a structural view of a diffusion plate and a diffusion plate holder of the present invention.
In the figure: 1. the camera comprises a whole support, 2, a camera support, 3, a telescopic plate, 4, a lifting sliding table, 5, a light source support, 6, a diffusion plate support, 7, a diffusion plate, 8, a spherical connecting rod, 11, a cylindrical rod, 12, a base, 13, a plane light source, 14, an L-shaped support A, 21, an L-shaped support B, 22, a lens circular hole, 41, a sliding table block, 42, a screw A, 43, an adjusting knob, 44, a lifting table, 45, a fixing support, 46, a gear structure, 47, a scale, 48, a circular hole A, 49, a circular hole B, 51, a U-shaped fixing support, 52, a threaded hole, 53, a screw B, 54, a circular arc-shaped notch, 61, a circular hole C, 62, a spherical groove, 71, a circular guide rail groove, 72 and a transparent particle plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a solar cell image acquisition structure includes an integral support 1, a camera support 2, a lifting sliding table 3, a light source support 5, and a diffusion plate 7, wherein the integral support 1 is provided with the camera support 2, the light source support 5, and the diffusion plate 7 from top to bottom, the integral support 1 includes cylindrical rods 11, a base 12, and a planar light source 13, the four cylindrical rods 11 are arranged in a rectangular shape and mounted on the base 12, and the planar light source 13 is mounted at the center of the base 12.
The lifting sliding table 4 is arranged on the cylindrical rod 11 in two layers, the camera support 2 is arranged on the upper lifting sliding table 4, the light source support 5 is arranged on the lower lifting sliding table 4, the telescopic plate 3 is arranged between the camera support 2 and the light source support 5, the telescopic plate 3 is made of black light absorption materials, the camera support 2, the light source support 5 and the telescopic plate 3 are connected to form a darkroom cavity, and the darkroom cavity can guarantee the darkroom environment between a camera and a light source when the heights of the camera support 2 and the light source support 5 are adjusted; a gear structure 46 and scales 47 for accurately adjusting the height and the inclination angle are arranged on the lifting sliding table 4; the diffusion plate 7 is arranged on the integral support 1 by utilizing the diffusion plate support 6 with adjustable angle, and the angle of each diffusion plate 7 can be freely changed, so that the scattering angle of the light source on the light source support 5 can be conveniently adjusted, and the light on the solar cell piece is softer and more uniform.
The plane light source 13 is fixed on the base 12 using two L-shaped brackets a 14; solar cells can be placed above the planar light source 13 to collect images of the cells, the cells can also be placed in batches through a transmission belt or other transmission structures, and the base 12 can be detached according to the transmission structure of practical application.
A lens round hole 22 is formed in the center of the camera support 2, an L-shaped support B21 for fixing a camera is arranged on one side of the lens round hole 22, and the lens of the camera collects images through the lens round hole 22; four corners of the camera support 2 are arranged on the upper lifting sliding table 4, and hook surface nylon buckle strips are adhered around the side surface of the camera support 2 and used for adhering the expansion plate 3.
The light source bracket 5 is rectangular ring-shaped, a light source is arranged on the light source bracket 5, and a U-shaped fixed bracket 51 is arranged on the light source bracket 5 on the surface opposite to the diffusion plate 7; hook surface nylon hasp strips are pasted around the side surface of the light source support 5.
A threaded hole 52 is formed in the middle of the U-shaped fixing support 51, the U-shaped fixing support 51 is fixedly installed on the light source support 5 through the threaded hole 52 by screws, circular-arc-shaped notches 54 are formed in the two ends of the U-shaped fixing support, scales are marked on the periphery of each notch, and the light source is installed on the U-shaped fixing support 51 through a screw B53, so that the installation angle of the light source can be accurately adjusted.
The number of the lifting sliding tables 4 is 8, each lifting sliding table 4 comprises a sliding table block 41, an adjusting knob 43, a lifting table 44 and a fixing support 45, a round hole A48 which is sleeved on the cylindrical rod 11 is formed in each sliding table block 41, and each sliding table block 41 is fixed on the cylindrical rod 11 through a screw A42; the sliding table block 41 is provided with a round hole B49 for fixing the adjusting knob 43 of the lifting table 44; the side, connected with the sliding table block 41, of the lifting table 44 is provided with a gear structure 46 capable of adjusting the position of the lifting table 44, the side surface of the gear structure 46 is provided with scales 47 for accurately adjusting the height of the lifting table 44, a fixing support 45 for mounting the camera support 2 and the light source support 5 is welded on the back surface of the gear structure 46 on the lifting table 44, the camera support 2 and the light source support 5 are fixedly mounted on the lifting table 4 through a threaded hole 52 on the fixing support 45, and the height and the distance between the camera support 2 and the light source support 5 are adjusted by adjusting the height of the lifting table 4 on the cylindrical rod 11; the adjusting knob 43 is provided with a gear structure 46 which can be matched with the lifting platform 44, the position of the lifting platform 44 is accurately adjusted by utilizing the gear structure 46, the adjusting knob 43 rotates 360 degrees, the position of the lifting platform 44 moves by 1cm, and after the height of the lifting platform 44 is adjusted, the adjusting knob 43 is screwed and fixed by using a screw B53.
The diffusion plate 7 totally has 4 blocks, the panel is a transparent particle plate 72 and has good scattering performance, the circular guide rail grooves 71 are formed in the periphery of the side face, the diffusion plate 7 is connected with the diffusion plate support 6 through spherical connecting rods 8, the diffusion plate 7 is installed between the adjacent cylindrical rods 11, the angle of the diffusion plate 7 can be freely adjusted through the spherical connecting rods 8, and each diffusion plate can be independently adjusted.
The diffusion plate bracket 6 is provided with a round hole C61 which is sleeved on the cylindrical rod 11 and fixed by a screw A42, the diffusion plate bracket 6 is provided with a spherical groove 62, and spherical structures at two ends of a spherical connecting rod 8 are arranged in the spherical groove 62 and the circular guide rail groove 71 of the diffusion plate 7; the lifting sliding table 4 and the diffusion plate bracket 6 can be detached or replaced in relative positions as required.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The utility model provides a solar wafer image acquisition structure, includes whole support (1), camera support (2), lift slip table (4), light source support (5), diffuser plate (7), its characterized in that:
the camera support (2), the light source support (5) and the diffusion plate (7) are respectively installed on the whole support (1) from top to bottom, the whole support (1) comprises cylindrical rods (11), a base (12) and a plane light source (13), the four cylindrical rods (11) are installed on the base (12) in a rectangular arrangement mode, and the plane light source (13) is installed in the center of the base (12);
the camera system is characterized in that the lifting sliding tables (4) are arranged on the cylindrical rod (11) in two layers, the camera support (2) is arranged on the upper layer of lifting sliding table (4), the light source support (5) is arranged on the lower layer of lifting sliding table (4), the telescopic plate (3) is arranged between the camera support (2) and the light source support (5), and the camera support (2), the light source support (5) and the telescopic plate (3) are connected to form a darkroom cavity; the lifting sliding tables (4) are 8 in number, each lifting sliding table (4) comprises a sliding table block (41), an adjusting knob (43), a lifting table (44) and a fixing support (45), a round hole A (48) which is sleeved on the cylindrical rod (11) is formed in each sliding table block (41), and each sliding table block (41) is fixed on the cylindrical rod (11) through a screw A (42); a round hole B (49) for fixing an adjusting knob (43) of the lifting platform (44) is formed in the sliding platform block (41), and the adjusting knob (43) is screwed and fixed by a screw B (53); one side of the lifting platform (44) connected with the sliding table block (41) is provided with a gear structure (46) capable of moving the position of the lifting platform (44), the side of the gear structure (46) is provided with scales (47) for accurately adjusting the height of the lifting platform (44), a fixing support (45) for mounting the camera support (2) and the light source support (5) is welded on the back of the gear structure (46) on the lifting platform (44), and the camera support (2) and the light source support (5) are fixedly mounted on the lifting sliding table (4) through threaded holes (52) in the fixing support (45); a gear structure (46) matched with the lifting platform (44) is arranged on the adjusting knob (43);
the diffusion plate (7) is arranged on the integral support (1) by utilizing a diffusion plate support (6) with adjustable angle.
2. The solar cell image acquisition structure according to claim 1, wherein: the plane light source (13) is fixed on the base (12) by using an L-shaped bracket A (14).
3. The solar cell image acquisition structure according to claim 1, wherein: a lens round hole (22) is formed in the center of the camera support (2), an L-shaped support B (21) used for fixing a camera is mounted on one side of the lens round hole (22), and hook surface nylon buckle strips are adhered to the periphery of the side face of the camera support (2).
4. The solar cell image acquisition structure according to claim 1, wherein: the light source bracket (5) is rectangular and annular, a light source is arranged on the light source bracket (5), and a U-shaped fixed bracket (51) is arranged on the light source bracket (5) on the surface opposite to the diffusion plate (7); hook surface nylon buckle strips are stuck around the side surface of the light source bracket (5).
5. The solar cell image acquisition structure according to claim 4, wherein: the middle of the U-shaped fixing support (51) is provided with a threaded hole (52) for fixing, the two ends of the U-shaped fixing support are provided with circular-arc-shaped notches (54), scales are marked on the periphery of the notches, and the light source is installed on the U-shaped fixing support (51) through a screw B (53).
6. The solar cell image acquisition structure according to claim 1, wherein: the number of the diffusion plates (7) is 4, the panel is a transparent particle plate (72), the periphery of the side face of the panel is provided with circular guide rail grooves (71), the diffusion plates (7) are connected with the diffusion plate support (6) through spherical connecting rods (8), and the diffusion plates (7) are arranged between the adjacent cylindrical rods (11).
7. The solar cell image acquisition structure according to claim 1, wherein: the diffusion plate is characterized in that a round hole C (61) formed in the diffusion plate support (6) is sleeved on the cylindrical rod (11) and fixed through a screw A (42), a spherical groove (62) is formed in the diffusion plate support (6), and a spherical structure of the spherical connecting rod (8) is installed in the spherical groove (62) and a circular guide rail groove (71) of the diffusion plate (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910406185.9A CN110174406B (en) | 2019-05-15 | 2019-05-15 | Solar cell image acquisition structure |
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| CN201910406185.9A CN110174406B (en) | 2019-05-15 | 2019-05-15 | Solar cell image acquisition structure |
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| CN110174406A CN110174406A (en) | 2019-08-27 |
| CN110174406B true CN110174406B (en) | 2021-05-14 |
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| CN111562272A (en) * | 2020-06-03 | 2020-08-21 | 深圳联钜自控科技有限公司 | Metal tube visual detection device |
| CN116295657B (en) * | 2023-05-16 | 2023-08-11 | 山西省建筑科学研究院集团有限公司 | Building structure health monitoring device and application method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686565A (en) * | 1984-05-22 | 1987-08-11 | Fujitsu Limited | Method and apparatus for visually examining an array of objects disposed in a narrow gap |
| CN103562711A (en) * | 2011-03-10 | 2014-02-05 | 美德客科技有限公司 | Vision testing device with enhanced image clarity |
| CN207612246U (en) * | 2017-12-27 | 2018-07-13 | 通威太阳能（成都）有限公司 | A kind of solar battery sheet on-line measuring device |
-
2019
- 2019-05-15 CN CN201910406185.9A patent/CN110174406B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686565A (en) * | 1984-05-22 | 1987-08-11 | Fujitsu Limited | Method and apparatus for visually examining an array of objects disposed in a narrow gap |
| CN103562711A (en) * | 2011-03-10 | 2014-02-05 | 美德客科技有限公司 | Vision testing device with enhanced image clarity |
| CN207612246U (en) * | 2017-12-27 | 2018-07-13 | 通威太阳能（成都）有限公司 | A kind of solar battery sheet on-line measuring device |
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Effective date of registration: 20211229 Address after: 030000 No. 1603, floor 16, building 1, No. 226, Changzhi Road, Taiyuan Xuefu Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Shanxi second thinking Intelligent Technology Co.,Ltd. Address before: 030006 No. 92, Hollywood Road, Taiyuan, Shanxi Patentee before: SHANXI University |