CN110672560A - Photovoltaic module color classification method and test equipment - Google Patents
Photovoltaic module color classification method and test equipment Download PDFInfo
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- CN110672560A CN110672560A CN201910964831.3A CN201910964831A CN110672560A CN 110672560 A CN110672560 A CN 110672560A CN 201910964831 A CN201910964831 A CN 201910964831A CN 110672560 A CN110672560 A CN 110672560A
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
- G01N21/278—Constitution of standards
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Abstract
The invention provides a photovoltaic module color classification method, which comprises the following steps: s1: calibrating a standard; s2, placing the component to be tested in the component test area; s3, irradiating the surface of the component to be tested by a white light generating device; s4, receiving the reflected light of the surface of the component to be measured by the white light receiving device; and S5, the white light receiving device classifies the components to be detected according to the received reflected light intensity compared with the classification grade of the standard components.
Description
Technical Field
The invention relates to the technical field of photovoltaic module detection, in particular to a photovoltaic module color classification method and test equipment.
Background
After a solar photovoltaic module is manufactured, the front surface of the solar photovoltaic module presents a color system with blue as a main color, namely, the color of a battery piece is different in color, the color of the module is different in color due to the fact that the color of the battery piece is divided into dark blue and light blue, the module is classified according to the blue shade after manual observation in the current production, different people, different light rays, early and night shifts and other factors have great influence on the color discrimination of human eyes, the eye fatigue of people is also one of important factors influencing the color classification, and in the face of a plurality of influencing factors, the module is classified according to the color sample requirement and cannot be hundreds, and the condition of color separation is often caused.
Therefore, a method and a device for color classification of photovoltaic modules are needed to overcome the drawbacks of the prior art, which is a problem that those skilled in the art need to overcome.
Disclosure of Invention
In view of the above, the present invention provides a photovoltaic module color classification method and a test device, and the specific scheme is as follows:
a photovoltaic module color classification method comprises the following steps:
s1: calibration standard
S2, placing the component to be tested in the component test area;
s3, irradiating the surface of the component to be tested by a white light generating device;
s4, receiving the reflected light of the surface of the component to be measured by the white light receiving device;
and S5, the white light receiving device classifies the components to be detected according to the received reflected light intensity compared with the classification grade of the standard components.
Specifically, the method for calibrating the standard in step S1 is as follows:
s1-1, placing the standard component in a component testing area;
s1-2, the white light generating device irradiates the surface of the standard component;
s1-3, the white light receiving device receives the reflected light of the standard component;
and S1-4, dividing the received reflected light intensity value of the standard component into N parts from strong to weak by the white light receiving device, dividing the reflected light intensity value divided into N parts into C classes according to the component class classification requirement, and establishing the class C classification grade.
Preferably, in step S2-4, N is 100, and C is 4.
Preferably, in the C-class classification, 0-25 is C1 grade, 26-50 is C2 grade, 51-75 is C3 grade, and 76-100 is C4 grade.
Further, the component test area is arranged inside the darkroom.
The testing equipment used by the component color classification method comprises a white light generating device, a white light receiving device and a component placing area, wherein the white light generating device, the white light receiving device and the testing area are arranged in a darkroom.
The photovoltaic module color classification method and the photovoltaic module color classification testing equipment provided by the invention have the following beneficial effects: 1. the invention can define the blue color of the component more finely and can classify the component into more classes. 2. The device is used for detection, instability of observation of people is avoided, the color is more accurately recognized, and deviation is avoided. 3. Different blue colors can be distinguished by using the defined basic unit, and the color of the adjacent color critical point can be accurately judged to which color, so that the situation that the judgment is difficult can be avoided. 4. When the color type is changed, only the interval of the basic unit of the reflected white light is required to be changed, and a standard color component is not required to be manufactured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
A photovoltaic module color classification method is characterized by comprising the following steps:
s1: calibration standard
S2, placing the component to be tested in the component test area;
s3, irradiating the surface of the component to be tested by a white light generating device;
s4, receiving the reflected light of the surface of the component to be measured by the white light receiving device;
and S5, the white light receiving device classifies the components to be detected according to the received reflected light intensity compared with the classification grade of the standard components.
Specifically, the method for calibrating the standard in step S1 is as follows:
s1-1, placing the standard component in a component testing area;
s1-2, the white light generating device irradiates the surface of the standard component;
s1-3, the white light receiving device receives the reflected light of the standard component;
and S1-4, dividing the received reflected light intensity value of the standard component into N parts from strong to weak by the white light receiving device, dividing the reflected light intensity value divided into N parts into C classes according to the component class classification requirement, and establishing the class C classification grade.
For calibration standards, two methods are provided herein;
in the step S2-4, N may be any continuous or discontinuous value within-1000 to +1000, and N may be preferably 100 for the polycrystalline photovoltaic module according to the current actual test requirement. The color classification can be arbitrarily chosen within the range of 0-100, and 4 classes may be preferred according to the present use case.
The first method comprises the following steps: in the C-class classification, 0-25 is C1 grade, 26-50 is C2 grade, 51-75 is C3 grade, and 76-100 is C4 grade.
And the second method comprises the following steps: the classification of the standard components may also be: firstly, the numerical value z of the reference color of the standard component is defined by means of white light reflection, graph contrast, color contrast and the like.
Standard component colors are classified using defined base hue values of z, e.g., z + -25 is C3, z-25 ~ z-75 is C2, z-75 ~ z- ∞ is C1, z +25 ~ z +75 is C4, z +75 ~ z + ∞ is C5, and so on.
The tested component uses the same method to test the value a' representing the color in which the interval is the corresponding color (one of C1, C2, C3, C4 and C5).
Further, in order to maintain the consistency of the test results without being disturbed by external light, the component test area is disposed inside a dark room (not shown).
Referring to fig. 1, the present invention also claims a component sorting test apparatus including a white light generating device, a white light receiving device, and a component placement area (not shown), the white light generating device, the white light receiving device, and the test area being disposed inside a dark room (not shown).
Since white light is a polychromatic light, three primary colors of monochromatic light, namely, red, yellow and blue, can be preferably used as light sources to further stabilize the test results.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A photovoltaic module color classification method is characterized by comprising the following steps:
s1: calibration standard
S2, placing the component to be tested in the component test area;
s3, irradiating the surface of the component to be tested by a white light generating device;
s4, receiving the reflected light of the surface of the component to be measured by the white light receiving device;
and S5, the white light receiving device classifies the components to be detected according to the received reflected light intensity compared with the classification grade of the standard components.
2. The method for color classification of photovoltaic modules according to claim 1, wherein the method comprises
The method for calibrating the standard in step S1 is as follows:
s1-1, placing the standard component in a component testing area;
s1-2, the white light generating device irradiates the surface of the standard component;
s1-3, the white light receiving device receives the reflected light of the standard component;
and S1-4, dividing the received reflected light intensity value of the standard component into N parts from strong to weak by the white light receiving device, dividing the reflected light intensity value divided into N parts into C classes according to the component class classification requirement, and establishing the class C classification grade.
3. The method for color classification of a photovoltaic module according to claim 2, characterized in that: in the step S2-4, N is 100 and C is 4.
4. The method for color classification of a photovoltaic module according to claim 3, characterized in that: in the C-class classification, 0-25 is C1 grade, 26-50 is C2 grade, 51-75 is C3 grade, and 76-100 is C4 grade.
5. The method for color sorting a photovoltaic module according to any one of claims 1 to 4, wherein: the component test area is arranged inside the darkroom.
6. A test apparatus for use in a sorting method according to any one of claims 1-4, comprising white light generating means, white light receiving means and a component placement area, characterized in that: the white light generating device, the white light receiving device and the test area are arranged in the darkroom.
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| CN201910964831.3A CN110672560A (en) | 2019-10-11 | 2019-10-11 | Photovoltaic module color classification method and test equipment |
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| CN201910964831.3A CN110672560A (en) | 2019-10-11 | 2019-10-11 | Photovoltaic module color classification method and test equipment |
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Citations (6)
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| CN101676696A (en) * | 2008-09-17 | 2010-03-24 | 中茂电子(深圳)有限公司 | Optical testing system for testing early-period confirmation contrast sample of solar cell and method |
| CN201488812U (en) * | 2009-08-05 | 2010-05-26 | 福州图森图像技术有限公司 | Color difference analyzer of solar cell plate |
| CN105032789A (en) * | 2015-08-17 | 2015-11-11 | 江苏瑞新科技股份有限公司 | Color difference sorting device for silicon battery pieces and sorting method of color difference sorting device |
| CN106327463A (en) * | 2015-06-17 | 2017-01-11 | 上海太阳能工程技术研究中心有限公司 | Color identification method for solar cell |
| CN107185854A (en) * | 2017-05-17 | 2017-09-22 | 河北工业大学 | The algorithm of photovoltaic cell acetes chinensis and color classification based on RGB channel |
| CN109632101A (en) * | 2018-11-08 | 2019-04-16 | 百力达太阳能股份有限公司 | A method of distinguishing polycrystalline cell piece color colour system |
-
2019
- 2019-10-11 CN CN201910964831.3A patent/CN110672560A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676696A (en) * | 2008-09-17 | 2010-03-24 | 中茂电子(深圳)有限公司 | Optical testing system for testing early-period confirmation contrast sample of solar cell and method |
| CN201488812U (en) * | 2009-08-05 | 2010-05-26 | 福州图森图像技术有限公司 | Color difference analyzer of solar cell plate |
| CN106327463A (en) * | 2015-06-17 | 2017-01-11 | 上海太阳能工程技术研究中心有限公司 | Color identification method for solar cell |
| CN105032789A (en) * | 2015-08-17 | 2015-11-11 | 江苏瑞新科技股份有限公司 | Color difference sorting device for silicon battery pieces and sorting method of color difference sorting device |
| CN107185854A (en) * | 2017-05-17 | 2017-09-22 | 河北工业大学 | The algorithm of photovoltaic cell acetes chinensis and color classification based on RGB channel |
| CN109632101A (en) * | 2018-11-08 | 2019-04-16 | 百力达太阳能股份有限公司 | A method of distinguishing polycrystalline cell piece color colour system |
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Application publication date: 20200110 |