A test error correction method and apparatus
By using a backlight-free LCD display panel to display standard test patterns and calculate error correction coefficients, the problems of material waste and large errors in photovoltaic module testing are solved, achieving high efficiency and accuracy in testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- COLORFUL LEAD POWER (BEIJING) TECH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-06-05
AI Technical Summary
In current photovoltaic module testing, the pattern-making materials are used only once and cannot be repeated, which causes the testing equipment to occupy the production line and results in large testing errors, affecting accuracy.
Standard test patterns are displayed using a backlight-free LCD display panel. By calculating the error correction coefficient, test errors are reduced, and materials and equipment can be reused.
No coating materials or equipment are required, and test errors are effectively corrected, improving the accuracy and efficiency of photovoltaic module testing.
Smart Images
Figure CN121077401B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic technology, and in particular to a test error correction method and apparatus. Background Technology
[0002] Photovoltaic modules (solar panels) are the core power generation unit of a solar power system, and their core function is to directly convert sunlight into electrical energy. Currently, many photovoltaic modules have patterns drawn on them, and some of these patterns can have a certain impact on the light transmittance and power generation efficiency of the photovoltaic modules.
[0003] In existing technologies, when testing the impact of patterns drawn on photovoltaic modules on the light transmittance and power generation efficiency of photovoltaic modules, it is usually necessary to fabricate standard test patterns on a substrate material to obtain a coating containing the standard test patterns, and then attach the coating to the photovoltaic module. For example, the standard test patterns are sprayed onto a transparent film, and then the transparent film is attached to the photovoltaic module.
[0004] In this testing method, the materials used to create the coating (such as ink and transparent film) are disposable and cannot be reused. Furthermore, the materials and coating equipment (such as spraying equipment) must be prepared before each test. Moreover, in factories, coating equipment is typically in production mode, making it impossible to create test patterns on the transparent film in a timely manner.
[0005] Furthermore, using testing methods other than existing technologies may lead to certain testing errors, affecting the accuracy of the test. Summary of the Invention
[0006] In view of this, the purpose of this application is to provide a test error correction method and apparatus, which replaces the existing test method by using a backlight-free LCD display panel to display a standard test pattern. This eliminates the need for materials and equipment for coating fabrication, and the backlight-free LCD display panel can be reused. Furthermore, when performing tests using the backlight-free LCD display panel to display the standard test pattern, an error correction coefficient is calculated to reduce test errors caused by the new test method.
[0007] In a first aspect, embodiments of this application provide a test error correction method, the method comprising: an error correction coefficient generation stage and an error correction stage;
[0008] The error correction coefficient generation stage includes:
[0009] For each standard test pattern belonging to the target color type, after applying a coating containing the standard test pattern to the surface of the photovoltaic module, the target index of the photovoltaic module is tested to obtain the standard test result of the standard test pattern; and after displaying the standard test pattern on a backlight-free LCD display panel and applying the backlight-free LCD display panel to the surface of the photovoltaic module, the target index of the photovoltaic module is tested to obtain the first LCD simulation test result of the standard test pattern.
[0010] Based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results, the error correction coefficient corresponding to the target color type is calculated.
[0011] The error correction stage includes:
[0012] The pattern to be tested is displayed on a backlight-free LCD display panel, and the backlight-free LCD display panel is placed on the surface of the photovoltaic module to be tested. The target indicators of the photovoltaic module are then tested to obtain the second LCD simulation test result of the pattern to be tested.
[0013] Using the error correction coefficient corresponding to the target color type of the pattern to be tested, the second LCD simulation test result is corrected to obtain the second actual spraying test result of the pattern to be tested.
[0014] In conjunction with the first aspect, this application provides a first possible implementation of the first aspect, wherein the target indicator is light transmittance or power generation efficiency; the target indicator for testing the photovoltaic module includes:
[0015] The light source of the solar cell IV characteristic tester is placed above the photovoltaic module. While the photovoltaic module is being irradiated by the light source, the target indicators of the photovoltaic module are tested using the solar cell IV characteristic tester.
[0016] In conjunction with the first aspect, this application provides a second possible implementation of the first aspect, wherein calculating the error correction coefficient corresponding to the target color type based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results includes:
[0017] Calculate the ratio of the first LCD simulation test result to the standard test result corresponding to each of the standard test patterns belonging to the same target color type, and obtain the ratio result corresponding to each of the standard test patterns belonging to the same target color type;
[0018] The mean of the ratio results corresponding to all the standard test patterns belonging to the same target color type is calculated to obtain the error correction coefficient.
[0019] In conjunction with the second possible implementation of the first aspect, this application provides a third possible implementation of the first aspect, wherein the step of using the error correction coefficient corresponding to the target color type to which the test pattern belongs to correct the error of the second LCD simulation test result to obtain the second actual spraying test result of the test pattern includes:
[0020] Based on the target color type to which the pattern to be tested belongs, determine the error correction coefficient corresponding to the target color type;
[0021] The product of the error correction coefficient corresponding to the target color type and the second LCD simulation test result is calculated to obtain the second actual spraying test result of the pattern to be tested.
[0022] In conjunction with the first aspect, this application provides a fourth possible implementation of the first aspect, wherein the target color type includes: white type, first color type, and second color type;
[0023] The standard test pattern belonging to the white type is a white pattern;
[0024] The standard test pattern belonging to the first color type is the first color pattern; the first color pattern is composed of a single color layer, or it is composed of an overlaid first white layer and a first color layer, wherein the white color value corresponding to each position in the first white layer is consistent;
[0025] The standard test pattern belonging to the second color type is the second color pattern; the second color pattern is composed of an overlaid second white layer and a second color layer, and the white color value corresponding to each position in the second white layer is inconsistent.
[0026] In conjunction with the fourth possible implementation of the first aspect, this application provides a fifth possible implementation of the first aspect, wherein the step of applying a coating containing the standard test pattern to the surface of the photovoltaic module includes:
[0027] When the standard test pattern is the white pattern, a coating containing the white pattern is produced using a specified process based on the white color value of each position in the white pattern, and the coating is applied to the surface of the photovoltaic module; the specified process includes any one of the following processes: inkjet printing, printing, coating, lamination, and lamination.
[0028] When the standard test pattern is the first color pattern, a coating containing the first color pattern is produced using the specified process according to the color values of each position in the first color pattern, and the coating is applied to the surface of the photovoltaic module.
[0029] When the standard test pattern is the second colored pattern, a second white coating containing the second white layer is made using a specified process based on the white color values at each position in the second white layer. Then, a second colored coating containing the second colored layer is made on the second white coating using the specified process based on the color values at each position in the second colored layer. The superimposed second white coating and the second colored coating are then set on the surface of the photovoltaic module.
[0030] In conjunction with the fifth possible implementation of the first aspect, this application provides a sixth possible implementation of the first aspect, wherein, when the target color type is the white type, for each standard test pattern belonging to the target color type, displaying the standard test pattern on a backlight-free LCD display panel includes:
[0031] Based on the white color value of each position in the white pattern, the first transmittance corresponding to each position in the white pattern is determined, and the first transmittance corresponding to each position in the white pattern on the photovoltaic module is sent to the backlight-free LCD display panel.
[0032] The backlight-free LCD display panel is controlled to display a black pattern that is consistent with the content of the white pattern according to the black corresponding to the first light transmittance of each position in the white pattern, so as to simulate the coating containing the white pattern set on the surface of the photovoltaic module by using the black pattern displayed in the backlight-free LCD display panel.
[0033] In conjunction with the fifth possible implementation of the first aspect, this application provides a seventh possible implementation of the first aspect, wherein, when the target color type is the first color type, for each standard test pattern belonging to the target color type, displaying the standard test pattern on a backlight-free LCD display panel includes:
[0034] Based on the color values at each position in the first color pattern, the first color pattern is controlled to be displayed on the backlight-free LCD display panel, so as to simulate the coating containing the first color pattern set on the surface of the photovoltaic module using the first color pattern displayed on the backlight-free LCD display panel.
[0035] In conjunction with the fifth possible implementation of the first aspect, this application provides an eighth possible implementation of the first aspect, wherein, when the target color type is the second color type, for each standard test pattern belonging to the target color type, displaying the standard test pattern on a backlight-free LCD display panel includes:
[0036] Based on the white color value of each position in the second white layer, determine the second transmittance corresponding to each position in the second white layer, and send the second transmittance corresponding to each position in the second white layer to the first backlight-free LCD display panel;
[0037] The first backlight-free LCD display panel is controlled to display a black pattern consistent with the content in the second white layer according to the black corresponding to the second light transmittance at each position in the second white layer, so as to simulate the second white coating containing the second white layer on the surface of the photovoltaic module by using the black pattern displayed in the first backlight-free LCD display panel.
[0038] Based on the color values at each position in the second color layer, the second backlight-free LCD display panel is controlled to display the second color layer, so as to simulate the coating containing the second color pattern on the surface of the photovoltaic module by using the first backlight-free LCD display panel and the second backlight-free LCD display panel that are superimposed; wherein, the first backlight-free LCD display panel is located between the second backlight-free LCD display panel and the photovoltaic module.
[0039] Secondly, embodiments of this application also provide a test error correction device, the device comprising:
[0040] The first testing module is used to test the target indicators of a photovoltaic module for each standard test pattern belonging to the target color type after the coating containing the standard test pattern is applied to the surface of the photovoltaic module, and obtain the standard test result of the standard test pattern; and to test the target indicators of the photovoltaic module after the standard test pattern is displayed on a backlight-free LCD display panel and the backlight-free LCD display panel is applied to the surface of the photovoltaic module, and obtain the first LCD simulation test result of the standard test pattern.
[0041] The calculation module is used to calculate the error correction coefficient corresponding to the target color type based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results;
[0042] The second test module is used to display the pattern to be tested on a backlight-free LCD display panel, and after the backlight-free LCD display panel is placed on the surface of the photovoltaic module to be tested, test the target indicators of the photovoltaic module and obtain the second LCD simulation test result of the pattern to be tested.
[0043] The correction module is used to correct the error in the second LCD simulation test result by using the error correction coefficient corresponding to the target color type to which the test pattern belongs, so as to obtain the second actual spraying test result of the test pattern.
[0044] This application provides a test error correction method and apparatus. When testing the impact of a test pattern drawn on a photovoltaic module on the module's target performance indicators, a standard test pattern is displayed using a backlight-free LCD display panel. This backlight-free LCD display panel is then placed on the surface of the photovoltaic module under test, thereby testing the module's target performance indicators. In this testing method, the backlight-free LCD display panel can be reused, and there is no need to prepare materials or equipment for coating fabrication.
[0045] Meanwhile, in this embodiment, considering that testing the target indicators of photovoltaic modules using a backlight-free LCD display panel to display standard test patterns may result in testing errors compared to existing testing methods, an error correction coefficient is calculated during the error correction coefficient generation stage. This coefficient is compared to the standard testing method (which involves fabricating the standard test pattern on a substrate material to obtain a coating containing the standard test pattern). In the subsequent error correction stage, after testing the target indicators of the photovoltaic modules using a backlight-free LCD display panel to display standard test patterns and obtaining the second LCD simulation test result, the error correction coefficient is used to correct the error in the second LCD simulation test result, resulting in a second actual spraying test result that approximates the result obtained using the standard testing method.
[0046] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0047] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0048] Figure 1 A flowchart of a test error correction method provided in an embodiment of this application is shown;
[0049] Figure 2 This illustration shows a structural schematic diagram of a backlight-free LCD display panel provided in an embodiment of this application;
[0050] Figure 3 This illustration shows a structural diagram of a first backlight-free LCD display panel and a second backlight-free LCD display panel provided in an embodiment of this application.
[0051] Figure 4 A schematic diagram of a test error correction device provided in an embodiment of this application is shown. Detailed Implementation
[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0053] In existing technologies, when testing the impact of patterns drawn on photovoltaic modules on their light transmittance and power generation efficiency, it is typically necessary to spray ink onto a transparent film before attaching the film to the module. In this testing method, the ink and transparent film are disposable and cannot be reused. Furthermore, materials (ink and transparent film) and spraying equipment must be prepared before each test. Moreover, in factories, spraying equipment is usually in production mode, making it impossible to spray test patterns onto the transparent film in a timely manner.
[0054] Based on this, the present application provides a test error correction method and apparatus, which are described below through embodiments.
[0055] To facilitate understanding of this embodiment, a test error correction method disclosed in this application will first be described in detail. The method includes: an error correction coefficient generation stage and an error correction stage.
[0056] like Figure 1As shown, the error correction coefficient generation stage includes the following steps S101-S102:
[0057] S101: For each standard test pattern belonging to the target color type, after applying a coating containing the standard test pattern to the surface of the photovoltaic module, test the target index of the photovoltaic module to obtain the standard test result of the standard test pattern; and after displaying the standard test pattern on a backlight-free LCD display panel and applying the backlight-free LCD display panel to the surface of the photovoltaic module, test the target index of the photovoltaic module to obtain the first LCD simulation test result of the standard test pattern.
[0058] S102: Based on the difference between the standard test results corresponding to each standard test pattern belonging to the target color type and the first LCD simulation test results, calculate the error correction coefficient corresponding to the target color type.
[0059] like Figure 1 As shown, the error correction stage includes the following steps S103-S104:
[0060] S103: Display the pattern to be tested on a backlight-free LCD display panel, and after placing the backlight-free LCD display panel on the surface of the photovoltaic module to be tested, test the target indicators of the photovoltaic module to obtain the second LCD simulation test result of the pattern to be tested.
[0061] S104: Using the error correction coefficient corresponding to the target color type of the pattern to be tested, the second LCD simulation test result is corrected to obtain the second actual spraying test result of the pattern to be tested.
[0062] In step S101, the target color type includes: white type, first color type, and second color type;
[0063] Among them, the standard test pattern belonging to the white type is the white pattern;
[0064] The standard test pattern belonging to the first color type is the first color pattern; the first color pattern is composed of a single color layer, or it is composed of an overlay of a first white layer and a first color layer, wherein the white color value corresponding to each position in the first white layer is consistent;
[0065] The standard test pattern belonging to the second color type is the second color pattern; the second color pattern is composed of an overlaid second white layer and a second color layer, and the white color value corresponding to each position in the second white layer is inconsistent.
[0066] For each standard test pattern belonging to the same target color type, a coating containing the standard test pattern is made and applied to the photovoltaic module. At this time, the actual impact of the standard test pattern on the photovoltaic module's target indicators (i.e., the standard test results) is tested.
[0067] In this embodiment, the target indicators are light transmittance or power generation efficiency. Therefore, the standard test results actually represent the actual impact of the standard test pattern on the light transmittance or power generation efficiency of the photovoltaic module.
[0068] For example, the standard test pattern is printed on a transparent film using an inkjet printer, and the transparent film with the standard test pattern is then attached to a photovoltaic module. At this time, the actual impact of the standard test pattern on the photovoltaic module on the light transmittance or power generation efficiency of the photovoltaic module is tested.
[0069] In this embodiment, a backlight-free LCD (Liquid Crystal Display) panel refers to a liquid crystal display that does not have a built-in backlight module (such as LED backlight or CCFL backlight). Its display relies entirely on ambient light (such as natural light or ambient diffused light).
[0070] The standard test pattern is displayed on a backlight-free LCD display panel, and then the backlight-free LCD display panel is attached to the surface of the photovoltaic module. At this time, the impact of the standard test pattern on the photovoltaic module on the light transmittance or power generation efficiency of the photovoltaic module is tested (i.e., the first LCD simulation test result).
[0071] In one possible implementation, when performing the target performance test of the photovoltaic module in step S101, such as Figure 2 As shown, the specific steps can be followed:
[0072] The light source in the solar cell IV characteristic tester (IV characteristic tester) is set above the photovoltaic module. While the photovoltaic module is being illuminated by the light source, the target indicators of the photovoltaic module are tested using the solar cell IV characteristic tester.
[0073] In this embodiment, when the light source illuminates the photovoltaic module, it does so either through a standard test pattern in the coating or through a standard test pattern displayed on a backless LCD display panel. In other words, the light emitted by the light source received by the photovoltaic module is actually the remaining light after being blocked by the standard test pattern in the coating or the standard test pattern displayed on the backless LCD display panel.
[0074] In this embodiment, the coated or backlight-free LCD display panel is directly attached to the photovoltaic module and is in direct contact with it. There is a certain distance between the light source and the photovoltaic module; for example, this distance can be 20 centimeters.
[0075] In one possible implementation, when performing step S101, which involves applying a coating containing the standard test pattern to the surface of the photovoltaic module, the following steps S1011-S1013 may be performed:
[0076] S1011: When the standard test pattern is a white pattern, a coating containing the white pattern is produced using a specified process based on the white color value of each position in the white pattern, and the coating is applied to the surface of the photovoltaic module; the specified process includes any one of the following processes: inkjet printing, printing, coating, lamination, and lamination.
[0077] S1012: When the standard test pattern is the first color pattern, according to the color values of each position in the first color pattern, a coating containing the first color pattern is produced using a specified process, and the coating is applied to the surface of the photovoltaic module.
[0078] S1013: When the standard test pattern is the second color pattern, according to the white color value of each position in the second white layer, a second white coating containing the second white layer is made using a specified process. Then, according to the color value of each position in the second color layer, a second color coating containing the second color layer is made on the second white coating using a specified process. The superimposed second white coating and the second color coating are set on the surface of the photovoltaic module.
[0079] In step S1011, for example, for each standard test pattern (white pattern) belonging to the white type, that is, when the standard test pattern is a white pattern, according to the white color value of each position in the white pattern, the inkjet device is controlled to spray white ink on the transparent film according to the inkjet amount corresponding to the white color value of each position in the white pattern, so as to form the white pattern on the transparent film, thereby producing a coating containing the white pattern.
[0080] The white color value at each location in the white pattern indicates the purity of the white color at that location, the thickness of the white ink sprayed onto the transparent film, and also the inconsistent light transmittance at different locations within the white pattern sprayed onto the transparent film. Specifically, the thicker the white ink, the lower the light transmittance; the thinner the white ink, the higher the light transmittance.
[0081] In step S1012, for each standard test pattern (first color pattern) belonging to the first color type, the first color pattern can be composed of a single color layer, or it can be composed of a first white layer and a first color layer superimposed from bottom to top.
[0082] For example, when the first color pattern is composed of a first white layer and a first color layer superimposed from bottom to top, the inkjet device is controlled to spray white ink onto the transparent film according to the inkjet amount corresponding to the white color value at each position in the first white layer, so as to form the pattern corresponding to the first white layer on the transparent film, that is, to form a first white coating on the transparent film.
[0083] Then, based on the first white coating, the inkjet equipment is controlled to spray colored ink according to the color values of each position in the first color layer, so as to further form the pattern corresponding to the first color layer on the basis of the first white coating formed on the transparent film, that is, the first color coating is formed on the first white coating. The superimposed first white coating and the first color coating are used as the coating containing the first color pattern.
[0084] In this embodiment, the white color value corresponding to each position in the first white layer is consistent, meaning that the purity of white is consistent at each position in the first white layer. Therefore, after the first white layer is sprayed onto the transparent film, the thickness of the white ink at each position in the first white coating formed on the transparent film is consistent.
[0085] In step S1013, for each standard test pattern (second color pattern) belonging to the second color type, the second color pattern is composed of a second white layer and a second color layer superimposed from bottom to top.
[0086] For example, when the standard test pattern is a second color pattern, the inkjet device is controlled to spray white ink onto the transparent film according to the inkjet amount corresponding to the white color value at each position in the second white layer, so as to form a white pattern corresponding to the second white layer on the transparent film, that is, to form a second white coating on the transparent film. However, because the white color values at different positions in the second white layer are inconsistent, that is, the purity of white at different positions in the second white layer is inconsistent, the thickness of the white ink at different positions in the second white coating formed on the transparent film after the second white layer is sprayed onto the transparent film is inconsistent.
[0087] Next, based on the second white coating, the inkjet equipment is controlled to spray colored ink according to the color values of each position in the second color layer, so as to form a second color pattern on the second white coating formed on the transparent film. The superimposed second white coating and the second color coating are used as the coating containing the second color pattern.
[0088] In one possible implementation, when the target color type is white, when performing step S101 for each standard test pattern belonging to the target color type, and displaying the standard test pattern on the backlight-free LCD display panel, the following steps S1014-S1015 can be specifically performed:
[0089] S1014: Determine the first transmittance corresponding to each position in the white pattern based on the white color value of each position in the white pattern, and send the first transmittance corresponding to each position in the white pattern on the photovoltaic module to the backlight-free LCD display panel.
[0090] S1015: Control the backlight-free LCD display panel to display a black pattern that is consistent with the content in the white pattern according to the black corresponding to the first light transmittance of each position in the white pattern, so as to simulate the coating containing the white pattern set on the surface of the photovoltaic module by using the black pattern displayed in the backlight-free LCD display panel.
[0091] In this embodiment, white is achieved by spraying white ink. To achieve a whiter effect, the amount of white ink sprayed needs to be increased, and vice versa. This results in the whiter the white (i.e., the higher the purity of white), the thicker the white ink sprayed, and the worse the light transmission performance. Conversely, the thinner the white ink, the better the light transmission performance.
[0092] Since the principle behind displaying white on a backless LCD panel is to maximize the light transmittance of the RGB sub-pixels, the higher the purity of white on a backless LCD panel, the better the light transmittance; conversely, the lower the purity of white, the worse the light transmittance. Therefore, the relationship between white purity and light transmittance on a backless LCD panel is the opposite of that of sprayed ink. Thus, to simulate the performance of a white pattern on a backless LCD panel, it is necessary to convert it to black. On a backless LCD panel, the darker the black, the worse the light transmittance; the lighter the black, the better the light transmittance.
[0093] Therefore, in this embodiment, when the target color type is white, the standard test pattern belonging to the target color type is a white pattern. When displaying this standard test pattern on a backlight-free LCD display panel, specifically: based on the white color value of each position in the white pattern, the first transmittance corresponding to each position in the white pattern is determined, and this first transmittance is sent to the backlight-free LCD display panel. The backlight-free LCD display panel displays a black pattern (same pattern shape and size, but different color) that is identical to the content of the white pattern, according to the black corresponding to the first transmittance at each position in the white pattern. Thus, the black pattern displayed on the backlight-free LCD display panel simulates the coating containing the white pattern set on the surface of the photovoltaic module.
[0094] In one possible implementation, when the target color type is the second color type, when performing step S101 for each standard test pattern belonging to the target color type, and displaying the standard test pattern on the backlight-free LCD display panel, the following steps S1016-S1018 can be specifically performed:
[0095] S1016: Determine the second transmittance corresponding to each position in the second white layer based on the white color value of each position in the second white layer, and send the second transmittance corresponding to each position in the second white layer to the first backlight-free LCD display panel.
[0096] S1017: Control the first backlight-free LCD display panel to display a black pattern consistent with the content in the second white layer according to the black corresponding to the second transmittance at each position in the second white layer, so as to simulate the second white coating containing the second white layer set on the surface of the photovoltaic module by using the black pattern displayed in the first backlight-free LCD display panel.
[0097] S1018: Based on the color values at each position in the second color layer, control the second backlight-free LCD display panel to display the second color layer, so as to simulate the coating containing the second color pattern set on the surface of the photovoltaic module by using the superimposed first backlight-free LCD display panel and the second backlight-free LCD display panel; wherein, the first backlight-free LCD display panel is located between the second backlight-free LCD display panel and the photovoltaic module.
[0098] In this embodiment, the second colored pattern is composed of a second white layer and a second colored layer superimposed from bottom to top. When creating the coating containing the second colored pattern, colored ink and white ink are sprayed together to achieve the colored effect. Because the white color values at different positions in the second white layer are inconsistent, the light transmittance at different positions in the second white coating containing the second white layer is inconsistent. Directly simulating the second colored pattern would affect the simulation effect. Therefore, when using a backlight-free LCD display panel to replace the simulated ink spraying effect, a dual-layer backlight-free LCD display panel with a color + black layer is used for simulation.
[0099] Specifically, such as Figure 3 As shown, based on the white color value of each position in the second white layer, the second transmittance corresponding to each position in the second white layer is determined, and the second transmittance corresponding to each position in the second white layer is sent to the first backlight-free LCD display panel.
[0100] The first backlight-free LCD display panel displays a black pattern consistent with the content in the second white layer, according to the black corresponding to the second transmittance at each position in the second white layer, so as to simulate the second white coating containing the second white layer set on the surface of the photovoltaic module by using the black pattern displayed in the first backlight-free LCD display panel.
[0101] The second backlight-free LCD display panel displays the second color layer according to the color values at each position in the second color layer, thereby simulating a coating containing the second color pattern set on the surface of the photovoltaic module by using the superimposed first backlight-free LCD display panel and the second backlight-free LCD display panel.
[0102] In one possible implementation, when the target color type is a first color type, when performing step S101 for each standard test pattern belonging to the target color type, and displaying the standard test pattern on a backlight-free LCD display panel, the specific steps can be as follows:
[0103] Based on the color values at various positions in the first color pattern, the display of the first color pattern in the backlight-free LCD display panel is controlled to simulate the coating containing the first color pattern set on the surface of the photovoltaic module.
[0104] In this embodiment, when the first color pattern is composed of a single color layer, the backlight-free LCD display panel can directly display the first color pattern based on the color values of each position in the single color layer.
[0105] When the first colored pattern is composed of a first white layer and a first colored layer superimposed from bottom to top, since the white color value corresponding to each position in the first colored layer is consistent, the light transmittance of different positions in the first white coating containing the first white layer is consistent. Therefore, in this embodiment, the first colored pattern can be directly simulated. Thus, when using a backlight-free LCD display panel to replace the effect of simulating ink spraying of the first colored pattern, the display of the first colored pattern in the backlight-free LCD display panel can be directly controlled according to the color values of each position in the first colored pattern, so as to simulate the coating containing the first colored pattern set on the surface of the photovoltaic module using the first colored pattern displayed in the backlight-free LCD display panel.
[0106] In step S102, each target color type corresponds to an error correction coefficient, that is, the white type corresponds to an error correction coefficient, the first color type corresponds to an error correction coefficient, and the second color type corresponds to an error correction coefficient.
[0107] When calculating the error correction coefficient corresponding to one of the target color types, it is based on the difference between the standard test results corresponding to each of the standard test patterns belonging to that target color type and the first LCD simulation test results.
[0108] In one possible implementation, step S102 can be performed according to the following steps:
[0109] S1021: Calculate the ratio of the first LCD simulation test result to the standard test result for each standard test pattern belonging to the same target color type, and obtain the ratio result for each standard test pattern belonging to the same target color type.
[0110] S1022: Calculate the mean of the ratio results corresponding to all standard test patterns belonging to the same target color type, and obtain the error correction coefficient.
[0111] In this embodiment, for each target color type, based on each standard test pattern belonging to that target color type, the ratio of the first LCD simulation test result corresponding to the standard test pattern to the standard test result is calculated to obtain the ratio result corresponding to the standard test pattern.
[0112] After obtaining the ratio results corresponding to all standard test patterns of the target color type, calculate the mean of the ratio results corresponding to all standard test patterns of the target color type, and use the mean as the error correction coefficient for the target color type.
[0113] In this embodiment, the error correction coefficient corresponding to the second color type is generally greater than the error correction coefficients for the other two target color types. This is because simulating a coating containing the second color pattern on the surface of a photovoltaic module requires superimposing two second backlight-free LCD display panels, resulting in a larger error compared to the other two target color types.
[0114] In step S103, during the actual testing phase using a backlight-free LCD display panel, the pattern to be tested is displayed on the backlight-free LCD display panel, and after the backlight-free LCD display panel is placed on the surface of the photovoltaic module to be tested, the target indicators of the photovoltaic module are tested to obtain the second LCD simulation test result of the pattern to be tested.
[0115] In this embodiment, taking white as an example, when the test pattern is white, the first transmittance corresponding to each position in the test pattern can be determined based on the white color value of each position. This first transmittance is then sent to a backlight-free LCD display panel. The backlight-free LCD display panel displays a black pattern consistent with the content of the test pattern, according to the black corresponding to the first transmittance at each position in the test pattern.
[0116] After placing the backlight-free LCD display panel on the surface of the photovoltaic module to be tested, the light source of the solar cell IV characteristic tester is set above the photovoltaic module to be tested. While illuminating the photovoltaic module to be tested with the light source, the solar cell IV characteristic tester is used to test the light transmittance or power generation efficiency of the photovoltaic module to obtain the second LCD simulation test result of the pattern to be tested.
[0117] In this embodiment, when the target indicator is light transmittance, the second LCD simulation test result is the second LCD simulation test light transmittance result; when the target indicator is power generation efficiency, the second LCD simulation test result is the second LCD simulation test power generation efficiency result.
[0118] In step S104, when the target indicator is light transmittance, the second actual spraying test result is the second actual spraying test light transmittance result; when the target indicator is power generation efficiency, the second actual spraying test result is the second actual spraying test power generation efficiency result.
[0119] In one possible implementation, when performing step S104, the following steps S1041-S1042 can be specifically performed:
[0120] S1041: Determine the error correction coefficient corresponding to the target color type based on the target color type of the pattern to be tested.
[0121] S1042: Calculate the product of the error correction coefficient corresponding to the target color type and the second LCD simulation test result to obtain the second actual spraying test result of the pattern to be tested.
[0122] In this embodiment, the product of the error correction coefficient corresponding to the target color type and the second LCD simulation test result is used as the second actual spraying test result of the pattern to be tested.
[0123] Based on the same technical concept, embodiments of this application also provide a test error correction device, such as... Figure 4 As shown, the device includes:
[0124] The first test module 401 is used to test the target indicators of the photovoltaic module for each standard test pattern belonging to the target color type after the coating containing the standard test pattern is applied to the surface of the photovoltaic module, and obtain the standard test result of the standard test pattern; and to test the target indicators of the photovoltaic module after the standard test pattern is displayed on a backlight-free LCD display panel and the backlight-free LCD display panel is applied to the surface of the photovoltaic module, and obtain the first LCD simulation test result of the standard test pattern.
[0125] The calculation module 402 is used to calculate the error correction coefficient corresponding to the target color type based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results.
[0126] The second test module 403 is used to display the pattern to be tested on a backlight-free LCD display panel, and after the backlight-free LCD display panel is placed on the surface of the photovoltaic module to be tested, test the target indicators of the photovoltaic module and obtain the second LCD simulation test result of the pattern to be tested.
[0127] The correction module 404 is used to correct the error of the second LCD simulation test result by using the error correction coefficient corresponding to the target color type to which the test pattern belongs, so as to obtain the second actual spraying test result of the test pattern.
[0128] Optionally, the target indicator is light transmittance or power generation efficiency; when the first test module 401 is used to test the target indicator of the photovoltaic module, it is specifically used for:
[0129] The light source of the solar cell IV characteristic tester is placed above the photovoltaic module. While the photovoltaic module is being irradiated by the light source, the target indicators of the photovoltaic module are tested using the solar cell IV characteristic tester.
[0130] Optionally, when the calculation module 402 calculates the error correction coefficient corresponding to the target color type based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results, it is specifically used for:
[0131] Calculate the ratio of the first LCD simulation test result to the standard test result corresponding to each of the standard test patterns belonging to the same target color type, and obtain the ratio result corresponding to each of the standard test patterns belonging to the same target color type;
[0132] The mean of the ratio results corresponding to all the standard test patterns belonging to the same target color type is calculated to obtain the error correction coefficient.
[0133] Optionally, when the correction module 404 uses the error correction coefficient corresponding to the target color type of the pattern under test to correct the error in the second LCD simulation test result and obtain the second actual spraying test result of the pattern under test, it is specifically used for:
[0134] Based on the target color type to which the pattern to be tested belongs, determine the error correction coefficient corresponding to the target color type;
[0135] The product of the error correction coefficient corresponding to the target color type and the second LCD simulation test result is calculated to obtain the second actual spraying test result of the pattern to be tested.
[0136] Optionally, the target color type includes: white type, first color type, and second color type;
[0137] The standard test pattern belonging to the white type is a white pattern;
[0138] The standard test pattern belonging to the first color type is the first color pattern; the first color pattern is composed of a single color layer, or it is composed of an overlaid first white layer and a first color layer, wherein the white color value corresponding to each position in the first white layer is consistent;
[0139] The standard test pattern belonging to the second color type is the second color pattern; the second color pattern is composed of an overlaid second white layer and a second color layer, and the white color value corresponding to each position in the second white layer is inconsistent.
[0140] Optionally, when the first test module 401 is used to apply the coating containing the standard test pattern to the surface of the photovoltaic module, it is specifically used for:
[0141] When the standard test pattern is the white pattern, a coating containing the white pattern is produced using a specified process based on the white color value of each position in the white pattern, and the coating is applied to the surface of the photovoltaic module; the specified process includes any one of the following processes: inkjet printing, printing, coating, lamination, and lamination.
[0142] When the standard test pattern is the first color pattern, a coating containing the first color pattern is produced using the specified process according to the color values of each position in the first color pattern, and the coating is applied to the surface of the photovoltaic module.
[0143] When the standard test pattern is the second colored pattern, a second white coating containing the second white layer is made using a specified process based on the white color values at each position in the second white layer. Then, a second colored coating containing the second colored layer is made on the second white coating using the specified process based on the color values at each position in the second colored layer. The superimposed second white coating and the second colored coating are then set on the surface of the photovoltaic module.
[0144] Optionally, when the target color type is the white type, the first test module 401, when displaying each standard test pattern belonging to the target color type on a backlight-free LCD display panel, specifically performs the following:
[0145] Based on the white color value of each position in the white pattern, the first transmittance corresponding to each position in the white pattern is determined, and the first transmittance corresponding to each position in the white pattern on the photovoltaic module is sent to the backlight-free LCD display panel.
[0146] The backlight-free LCD display panel is controlled to display a black pattern that is consistent with the content of the white pattern according to the black corresponding to the first light transmittance of each position in the white pattern, so as to simulate the coating containing the white pattern set on the surface of the photovoltaic module by using the black pattern displayed in the backlight-free LCD display panel.
[0147] Optionally, when the target color type is the first color type, the first test module 401, when displaying each standard test pattern belonging to the target color type on a backlight-free LCD display panel, specifically performs the following:
[0148] Based on the color values at each position in the first color pattern, the first color pattern is controlled to be displayed on the backlight-free LCD display panel, so as to simulate the coating containing the first color pattern set on the surface of the photovoltaic module using the first color pattern displayed on the backlight-free LCD display panel.
[0149] Optionally, when the target color type is the second color type, the first test module 401, when displaying each standard test pattern belonging to the target color type on a backlight-free LCD display panel, specifically performs the following:
[0150] Based on the white color value of each position in the second white layer, determine the second transmittance corresponding to each position in the second white layer, and send the second transmittance corresponding to each position in the second white layer to the first backlight-free LCD display panel;
[0151] The first backlight-free LCD display panel is controlled to display a black pattern consistent with the content in the second white layer according to the black corresponding to the second light transmittance at each position in the second white layer, so as to simulate the second white coating containing the second white layer on the surface of the photovoltaic module by using the black pattern displayed in the first backlight-free LCD display panel.
[0152] Based on the color values at each position in the second color layer, the second backlight-free LCD display panel is controlled to display the second color layer, so as to simulate the coating containing the second color pattern on the surface of the photovoltaic module by using the first backlight-free LCD display panel and the second backlight-free LCD display panel that are superimposed; wherein, the first backlight-free LCD display panel is located between the second backlight-free LCD display panel and the photovoltaic module.
[0153] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.
[0154] In the several embodiments provided in this application, it should be understood that the disclosed methods and apparatus can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces; the indirect coupling or communication connection between devices or modules may be electrical, mechanical, or other forms.
[0155] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0156] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0157] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0158] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.
Claims
1. A method for correcting test errors, characterized in that, The method includes: an error correction coefficient generation stage and an error correction stage; The error correction coefficient generation stage includes: For each standard test pattern belonging to the target color type, after applying a coating containing the standard test pattern to the surface of the photovoltaic module, the target index of the photovoltaic module is tested to obtain the standard test result of the standard test pattern; and after displaying the standard test pattern on a backlight-free LCD display panel and applying the backlight-free LCD display panel to the surface of the photovoltaic module, the target index of the photovoltaic module is tested to obtain the first LCD simulation test result of the standard test pattern. Based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results, the error correction coefficient corresponding to the target color type is calculated. The error correction stage includes: The pattern to be tested is displayed on a backlight-free LCD display panel, and the backlight-free LCD display panel is placed on the surface of the photovoltaic module to be tested. The target indicators of the photovoltaic module are then tested to obtain the second LCD simulation test result of the pattern to be tested. Using the error correction coefficient corresponding to the target color type of the pattern to be tested, the second LCD simulation test result is corrected to obtain the second actual spraying test result of the pattern to be tested.
2. The method according to claim 1, characterized in that, The target indicators are light transmittance or power generation efficiency; the target indicators for testing the photovoltaic module include: The light source of the solar cell IV characteristic tester is placed above the photovoltaic module. While the photovoltaic module is being irradiated by the light source, the target indicators of the photovoltaic module are tested using the solar cell IV characteristic tester.
3. The method according to claim 1, characterized in that, The calculation of the error correction coefficient corresponding to the target color type based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results includes: Calculate the ratio of the first LCD simulation test result to the standard test result corresponding to each of the standard test patterns belonging to the same target color type, and obtain the ratio result corresponding to each of the standard test patterns belonging to the same target color type; The mean of the ratio results corresponding to all the standard test patterns belonging to the same target color type is calculated to obtain the error correction coefficient.
4. The method according to claim 3, characterized in that, The step of using the error correction coefficient corresponding to the target color type of the pattern under test to correct the error in the second LCD simulation test result, and obtaining the second actual spraying test result of the pattern under test, includes: Based on the target color type to which the pattern to be tested belongs, determine the error correction coefficient corresponding to the target color type; The product of the error correction coefficient corresponding to the target color type and the second LCD simulation test result is calculated to obtain the second actual spraying test result of the pattern to be tested.
5. The method according to claim 1, characterized in that, The target color type includes: white type, first color type, and second color type; The standard test pattern belonging to the white type is a white pattern; The standard test pattern belonging to the first color type is the first color pattern; the first color pattern is composed of a single color layer, or it is composed of an overlaid first white layer and a first color layer, wherein the white color value corresponding to each position in the first white layer is consistent; The standard test pattern belonging to the second color type is the second color pattern; the second color pattern is composed of an overlaid second white layer and a second color layer, and the white color value corresponding to each position in the second white layer is inconsistent.
6. The method according to claim 5, characterized in that, The process of applying a coating containing the standard test pattern to the surface of the photovoltaic module includes: When the standard test pattern is the white pattern, a coating containing the white pattern is produced using a specified process based on the white color value of each position in the white pattern, and the coating is applied to the surface of the photovoltaic module. When the standard test pattern is the first color pattern, a coating containing the first color pattern is produced using a specified process based on the color values of each position in the first color pattern, and the coating is applied to the surface of the photovoltaic module. When the standard test pattern is the second color pattern, according to the white color value of each position in the second white layer, a second white coating containing the second white layer is made using a specified process. Then, according to the color value of each position in the second color layer, a second color coating containing the second color layer is made on the second white coating using the specified process. The superimposed second white coating and the second color coating are set on the surface of the photovoltaic module. When the standard test pattern is the white pattern, the first color pattern, or the second color pattern, the specified process is the same, which includes any one of the following processes: inkjet, printing, coating, or lamination.
7. The method according to claim 6, characterized in that, When the target color type is the white type, for each standard test pattern belonging to the target color type, displaying the standard test pattern on a backlight-free LCD display panel includes: Based on the white color value of each position in the white pattern, the first transmittance corresponding to each position in the white pattern is determined, and the first transmittance corresponding to each position in the white pattern on the photovoltaic module is sent to the backlight-free LCD display panel. The backlight-free LCD display panel is controlled to display a black pattern that is consistent with the content of the white pattern according to the black corresponding to the first light transmittance of each position in the white pattern, so as to simulate the coating containing the white pattern set on the surface of the photovoltaic module by using the black pattern displayed in the backlight-free LCD display panel.
8. The method according to claim 6, characterized in that, When the target color type is the first color type, for each standard test pattern belonging to the target color type, displaying the standard test pattern on a backlight-free LCD display panel includes: Based on the color values at each position in the first color pattern, the first color pattern is controlled to be displayed on the backlight-free LCD display panel, so as to simulate the coating containing the first color pattern set on the surface of the photovoltaic module using the first color pattern displayed on the backlight-free LCD display panel.
9. The method according to claim 6, characterized in that, When the target color type is the second color type, for each standard test pattern belonging to the target color type, displaying the standard test pattern on a backlight-free LCD display panel includes: Based on the white color value of each position in the second white layer, determine the second transmittance corresponding to each position in the second white layer, and send the second transmittance corresponding to each position in the second white layer to the first backlight-free LCD display panel; The first backlight-free LCD display panel is controlled to display a black pattern consistent with the content in the second white layer according to the black corresponding to the second light transmittance at each position in the second white layer, so as to simulate the second white coating containing the second white layer on the surface of the photovoltaic module by using the black pattern displayed in the first backlight-free LCD display panel. Based on the color values at each position in the second color layer, the second backlight-free LCD display panel is controlled to display the second color layer, so as to simulate the coating containing the second color pattern on the surface of the photovoltaic module by using the first backlight-free LCD display panel and the second backlight-free LCD display panel that are superimposed; wherein, the first backlight-free LCD display panel is located between the second backlight-free LCD display panel and the photovoltaic module.
10. A test error correction device, characterized in that, The device includes: The first testing module is used to test the target indicators of a photovoltaic module for each standard test pattern belonging to the target color type after the coating containing the standard test pattern is applied to the surface of the photovoltaic module, and obtain the standard test result of the standard test pattern; and to test the target indicators of the photovoltaic module after the standard test pattern is displayed on a backlight-free LCD display panel and the backlight-free LCD display panel is applied to the surface of the photovoltaic module, and obtain the first LCD simulation test result of the standard test pattern. The calculation module is used to calculate the error correction coefficient corresponding to the target color type based on the difference between the standard test results corresponding to each of the standard test patterns belonging to the target color type and the first LCD simulation test results; The second test module is used to display the pattern to be tested on a backlight-free LCD display panel, and after the backlight-free LCD display panel is placed on the surface of the photovoltaic module to be tested, test the target indicators of the photovoltaic module and obtain the second LCD simulation test result of the pattern to be tested. The correction module is used to correct the error in the second LCD simulation test result by using the error correction coefficient corresponding to the target color type to which the test pattern belongs, so as to obtain the second actual spraying test result of the test pattern.