Battery piece intercepting method and system, storage medium and program product

Abstract

The embodiment of the invention relates to the technical field of solar cells, and discloses a cell interception method and system, a storage medium and a program product. The method comprises the following steps: acquiring an online detection result of a target battery piece in a target material box; under the condition that the online detection result of the target battery piece is qualified, performing offline quality re-judgment on the target battery piece to obtain a re-judgment result of the target battery piece; under the condition that the re-judgment result of the target battery piece is unqualified, the re-judgment results of all the battery pieces in the target material box are integrated, and a comprehensive result of all the battery pieces in the target material box under the off-line quality re-judgment condition is obtained; and under the condition that the comprehensive result is unqualified, the target material box is intercepted, so that reinspection and interception of the solar cells can be realized before the solar cells are packaged, the inspection efficiency is improved, and manpower and time consumption caused by secondary box opening inspection is reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of solar cells, and in particular to a method, a system, a storage medium and a program product for intercepting battery wafers. Background Art

[0002] As the core component of a solar power generation system, the quality of a solar cell wafer directly affects the power generation efficiency and system stability. Before the solar cell wafers enter the market, it is crucial to conduct strict inspections on them.

[0003] Electroluminescence detection, i.e., EL detection, is an important means widely used in the detection of solar cell wafers and is also a crucial step in the production process of solar cell wafers. Its principle is that when a solar cell wafer generates current under illumination conditions and is under the action of an external voltage, the current will excite fluorescence to form an EL image. By analyzing the EL image, defects such as hidden cracks, black cores, and black edges in the battery wafer, as well as problems such as uneven diffusion and broken grids, can be accurately detected.

[0004] However, during the detection process, various situations such as newly emerging defects in the battery wafers, changes in the detection standards after detection, and failure of the detection software may occur, resulting in defective battery wafers flowing into normal products, that is, the situation of missed inspection of battery wafers, which will cause defective finished products of photovoltaic modules, further affecting the efficiency, performance, service life, and safety of photovoltaic modules. Therefore, it is necessary to intercept the missed-inspected battery wafers in a timely and accurate manner to avoid defective battery wafers or finished products of modules. In the related art, during the production process of battery wafers, manual and lagging spot checks are relied on. That is, after the products are packaged, the production time period of the defective battery wafers is obtained through spot checks, and the products within that time period are unpacked and inspected again. The inspection efficiency is low and it requires a large amount of manpower and time costs, increasing the labor and production costs of the enterprise. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a method, a system, a storage medium and a program product for intercepting battery wafers, so as to realize the re-inspection and interception of solar cell wafers before packaging, improve the inspection efficiency, and reduce the manpower and time consumption caused by unpacking and inspecting again.

[0006] To solve the above technical problems, an embodiment of the present invention provides a method for intercepting battery wafers, including: obtaining the online detection result of a target battery wafer in a target cassette; when the online detection result of the target battery wafer is qualified, performing an offline quality rejudgment on the target battery wafer to obtain the rejudgment result of the target battery wafer; when the rejudgment result of the target battery wafer is unqualified, integrating the rejudgment results of all battery wafers in the target cassette to obtain the comprehensive result of all battery wafers in the target cassette under the offline quality rejudgment; when the comprehensive result is unqualified, performing an interception process on the target cassette.

[0007] An embodiment of the present invention further provides a battery wafer interception system, including: an online detection device, an offline rejudgment device, and a battery wafer interception device; the online detection device is used to perform an online quality detection on a target battery wafer in a target cassette and obtain the online detection result of the target battery wafer; the offline rejudgment device is used to execute the battery wafer interception method as described above; the battery wafer interception device is used to receive the interception information sent by the offline rejudgment device and intercept the target cassette.

[0008] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program, where the computer program, when executed by a processor, implements the above battery wafer interception method.

[0009] An embodiment of the present invention further provides a computer program product including computer instructions, where the computer instructions, when executed by a processor, implement the battery wafer interception method as described above.

[0010] In the embodiment of the present invention, since after the online detection of the target battery wafer, the battery wafers with qualified online detection results are rejudged offline, the battery wafers can be secondarily detected before packaging, improving the product quality of the battery wafers and avoiding losses in downstream processes; and, the rejudgment results of the battery wafers are integrated according to the batches of the cassettes, and when intercepting, the cassettes that do not meet the production requirements are intercepted for defective battery wafers according to the batches of the cassettes, reducing the difficulty of interception and improving the interception efficiency; since the offline rejudgment is further performed based on the online detection results, the acquisition efficiency of battery wafer information is improved and the computing pressure of the system is reduced; in addition, the secondary rejudgment inspection of the battery wafers and the interception of defective battery wafers are realized through a fully automatic process, saving the human resources and time required for the work of intercepting defective battery wafers and reducing the labor cost of the enterprise.

[0011] In addition, the rejudgment result includes the qualification result of the target cell and the defect type of the target cell; integrating the rejudgment results of all the cells in the target cassette to obtain the comprehensive result of all the cells in the target cassette under the offline quality rejudgment, including: obtaining the qualification results and defect types of all the cells in the target cassette, calculating the qualification rate of all the cells in the target cassette, and calculating the defect rate of all the cells in the target cassette; in the case where the qualification rate is less than the first preset threshold and / or the defect rate is greater than the second preset threshold, the comprehensive result is unqualified.

[0012] In addition, the defect types of the target cell include minor defects and major defects; calculating the defect rate of all the cells in the target cassette specifically includes: calculating the first defect proportion of the cells with minor defects in the target cassette in the target cassette, and the second defect proportion of the cells with major defects in the target cassette in the target cassette; determining the defect rate according to the first defect proportion and the second defect proportion.

[0013] In addition, the defect types of the target cell include minor defects and major defects; calculating the defect rate of all the cells in the target cassette specifically includes: obtaining the first target virtual serial number of the cells with minor defects in the target cassette, and the second target virtual serial number of the cells with minor defects in the target cassette; determining the probability of adjacent defective cells in the target cassette according to the first target virtual serial number and the second target virtual serial number, and determining the defect rate according to the probability of adjacent defective cells.

[0014] In addition, performing offline quality rejudgment on the target cell includes: obtaining a target image of the target cell according to the online detection result of the target cell; performing offline image rejudgment detection on the target image; in the case where a defect is detected in the target cell, obtaining the defect type and target cell information of the target cell according to the target image, and locking the target image.

[0015] In addition, performing an interception process on the target cassette includes: sending the information of the target cell to a cell interception device for tracking and interception; wherein the information of the target cell includes: the target image of the target cell, the test time, the test line number, and the target virtual serial number.

[0016] In addition, before performing the interception process on the target cassette, the method further includes: obtaining the information of all the cells in the target cassette, generating an unqualified prompt message for the target cassette according to the information of all the cells in the target cassette, and sending the unqualified prompt message to the user client. Brief Description of the Drawings

[0017] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0018] Figure 1 is a flowchart of a method for intercepting solar cells provided by an embodiment of the present application;

[0019] Figure 2 is a schematic structural diagram of a solar cell interception system provided by an embodiment of the present application;

[0020] Figure 3 is another schematic structural diagram of a solar cell interception system provided by an embodiment of the present application;

[0021] Figure 4 is a schematic internal structure diagram of an electronic device provided by an embodiment of the present application. Detailed Description of the Embodiments

[0022] Since the production process of solar cells relies on manual and lagged sampling inspection, that is, after the products enter the packaging, the production time period of the defective solar cells is obtained through sampling inspection, and the products within this time period are unpacked and inspected again. The inspection efficiency is low and it requires a large amount of manpower and time costs, increasing the labor and production costs of the enterprise. Therefore, a method, system, storage medium, and program product for intercepting solar cells are needed, so as to realize the re-inspection and interception of solar cells before packaging, improve the inspection efficiency, and reduce the manpower and time consumption caused by unpacking and inspecting again.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the drawings. However, those of ordinary skill in the art can understand that in the embodiments of the present invention, many technical details are proposed for the convenience of readers to understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions required to be protected by the present application can be implemented. The division of the following embodiments is for convenience of description and should not constitute any limitation on the specific implementation manner of the present invention. The various embodiments can be combined and cross-referenced with each other on the premise of not conflicting with each other.

[0024] An embodiment of the present invention relates to a method for intercepting solar cells, which can be applied to an off-line re-judging device for solar cells or a device for automatically intercepting solar cells. The method for intercepting solar cells includes: obtaining the on-line detection result of a target solar cell in a target cassette; when the on-line detection result of the target solar cell is qualified, performing an off-line quality re-judging on the target solar cell to obtain the re-judging result of the target solar cell; when the re-judging result of the target solar cell is unqualified, integrating the re-judging results of all the solar cells in the target cassette to obtain the comprehensive result of all the solar cells in the target cassette under the off-line quality re-judging; and when the comprehensive result is unqualified, performing an interception process on the target cassette. Since after the on-line detection of the target solar cell, the solar cell with a qualified on-line detection result is re-judged off-line, the solar cell can be secondarily detected before packaging, improving the product quality of the solar cell and avoiding losses in downstream processes; and, the re-judging results of the solar cells are integrated according to the batches of the cassettes, and when intercepting, the cassettes that do not meet the production requirements are intercepted for defective solar cells according to the batches of the cassettes, reducing the difficulty of interception and improving the interception efficiency; since the off-line re-judging is further performed according to the on-line detection result, the acquisition efficiency of solar cell information is improved and the calculation pressure of the system is reduced; in addition, the secondary re-judging inspection of the solar cells and the interception of defective solar cells are realized through a fully automatic process, saving the human resources and time required for the work of intercepting defective solar cells and reducing the labor cost of the enterprise. The implementation details of the method for intercepting solar cells in the embodiments of the present invention will be specifically described below. The following content is only the implementation details provided for convenient understanding and is not necessary for implementing the solution.

[0025] As Figure 1 shown, in step 101, the off-line re-judging device obtains the on-line detection result of the target solar cell in the target cassette.

[0026] In some embodiments, the target cell includes, but is not limited to, a PERC cell (Passivated Emitter Rear Cell), an IBC (Interdigitated Back Contact) cell, a TOPCon (Tunnel Oxide Passivated Contact) cell, a HIT / HJT (Heterojunction Technology) cell, a thin-film solar cell, or any combination of these. Among them, the thin-film solar cell includes, but is not limited to, a perovskite thin-film solar cell, a copper indium selenide thin-film solar cell, a gallium arsenide thin-film solar cell, and a cadmium sulfide thin-film solar cell. The tandem cell includes, but is not limited to, a perovskite cell stacked with a crystalline silicon cell, a perovskite cell stacked with a perovskite cell, and a perovskite cell stacked with a thin-film cell.

[0027] In some embodiments, the in-line quality inspection is the first in-line EL inspection of the cells. The full name of the EL inspection is Electroluminescence Test, which is a non-destructive testing technology based on the electroluminescence phenomenon. It is mainly used to detect internal defects and performance problems of solar cell modules, semiconductor materials, etc. The principle of the EL inspection is that semiconductor materials will generate a luminescence phenomenon under the action of an electric field. When an external voltage is applied to a photovoltaic module or semiconductor material, the electrons inside the material will be excited to a high energy level. When these electrons fall back to a low energy level, photons will be released, forming electroluminescence. These light signals are captured by a high-sensitivity photon detector (such as an infrared camera) and converted into a visual image, so as to analyze the internal structure and defects of the material. In the embodiments of the present application, after the in-line quality inspection is completed, an off-line rejudgment device rejudges the cells that have passed the in-line quality inspection, and a second inspection is performed on the cells that have passed the preliminary in-line quality inspection to ensure the yield of the cells entering the packaging process. The result of the in-line quality inspection includes qualified or unqualified. If the in-line quality inspection result of the target cell is qualified, the target cell can be initially regarded as meeting the production requirements in terms of quality and subsequent off-line quality rejudgment can be carried out; if the in-line quality inspection result of the target cell is unqualified, the target cell will be recycled and will not enter the subsequent process. Since the in-line quality inspection can immediately detect problems in the production process during the inspection of the cells, unqualified cells can be directly recycled to avoid defective cells from entering the next process.

[0028] In step 102, when the on-line inspection result of the target cell is qualified, the off-line rejudgment device performs an off-line quality rejudgment on the target cell to obtain the rejudgment result of the target cell.

[0029] Specifically, in some embodiments, the offline quality re-judgment of the target cell includes: obtaining a target image of the target cell according to the online detection result of the target cell; performing offline image re-judgment detection on the target image; when it is detected that the target cell has a defect, obtaining the defect type and target cell information of the target cell according to the target image, and locking the target image.

[0030] In the present application, the offline quality re-judgment is an offline quality detection link. After the production of the cell is completed and offline, the information of the cell that passes the online quality detection is obtained. After analyzing the information of the cell through an artificial intelligence interception analysis software, the re-judgment result of the target cell is obtained. In some embodiments, the artificial intelligence interception analysis software uses an artificial intelligence model to perform re-judgment analysis on the target image of the target cell, such as a convolutional neural network (CNN), a recurrent neural network (RNN), a long short-term memory network (LSTM), a gated recurrent unit (GRU), a generative adversarial network (GAN), an attention mechanism (Attention) related model, or an artificial intelligence model and variant capable of image processing. It should be noted that those skilled in the art can select a suitable artificial intelligence model as the basis of the artificial intelligence interception analysis software according to actual production requirements for the re-judgment of the cell. The offline quality re-judgment can perform a more in-depth and complex analysis of the data, have more time to process and mine the data, and use artificial intelligence technology to finely analyze data such as EL images, and can discover subtle defects or abnormalities that may be missed in the online detection. The result of the offline quality re-judgment includes qualified or unqualified. If the offline quality re-judgment result of the target cell is qualified, the target cell can be further regarded as meeting the production requirements in terms of quality and can enter the subsequent production process as a qualified product; if the offline quality re-judgment result of the target cell is unqualified, then at this time, further sorting and analysis are required according to the quality of all the cells in the target cassette where the target cell is located.

[0031] Furthermore, after obtaining the re-judgment result, in order to ensure the accuracy of the re-judgment result, a secondary re-judgment can be introduced. The secondary re-judgment can be carried out by manual re-inspection, or by using an artificial intelligence model or software different from the offline quality re-judgment. The present application does not limit this here.

[0032] In step 103, when the re-judgment result of the target cell by the offline re-judgment device is unqualified, the re-judgment results of all the cells in the target cassette are integrated to obtain the comprehensive result of all the cells in the target cassette under the offline quality re-judgment. That is, in the present application, the comprehensive re-judgment result of the target cassette is deduced according to the re-judgment results of all the cells in the target cassette.

[0033] In some embodiments, the re-judgment result includes the pass result of the target cell and the defect type of the target cell; integrating the re-judgment results of all the cells in the target cassette to obtain the comprehensive result of all the cells in the target cassette under the offline quality re-judgment, including: obtaining the pass results and defect types of all the cells in the target cassette, calculating the pass rate of all the cells in the target cassette, and calculating the defect rate of all the cells in the target cassette; in the case where the pass rate is less than the first preset threshold and / or the defect rate is greater than the second preset threshold, the comprehensive result is unqualified.

[0034] Specifically, in some embodiments, the first preset threshold is set as the minimum value of the pass rate of all the cells in the target cassette; the second preset threshold is set as the maximum value of the defect rate of all the cells in the target cassette. When the pass rate of all the cells in the target cassette is less than the first preset threshold and the defect rate of all the cells in the target cassette is greater than the second preset threshold, the target cassette does not meet the production requirements. For example, the total number of cells in the target cassette is 100, the first preset threshold is 98%, and the second preset threshold is 5%; when among the 100 cells in the target cassette, there are more than or equal to 98 cells passing the inspection and less than or equal to 5 cells having defects, the target cassette meets the production requirements, and at this time, no interception process is performed on the target cassette; if among the 100 cells in the target cassette, the number of cells passing the inspection is less than 98 and / or the number of cells having defects exceeds 5, the target cassette does not meet the production requirements, and at this time, an interception process needs to be performed on the target cassette. In some other embodiments, the comprehensive result of the target cassette can be determined only based on the pass rate of all the cells in the target cassette; in some other embodiments, the comprehensive result of the target cassette can be determined only based on the defect rate of all the cells in the target cassette. It should be noted that in the above example, the specific values of the number of cells in the target cassette, the first preset threshold, and the second preset threshold are only for illustrative purposes and do not affect the actual content of the solution of the present application. Those skilled in the art can adjust the number of cells in the target cassette, the first preset threshold, and the second preset threshold according to actual production requirements, and the present application does not limit this here.

[0035] In addition, in some other embodiments, the re-inspection result includes the qualification result of the target cell and the defect type of the target cell; integrating the re-inspection results of all the cells in the target cassette to obtain the comprehensive result of all the cells in the target cassette under the offline quality re-inspection, including: obtaining the qualification results and defect types of all the cells in the target cassette, calculating the number of qualified cells among all the cells in the target cassette, and calculating the number of defective cells in the target cassette; when the number of qualified cells is less than a third preset threshold, and / or the number of defective cells is greater than a fourth preset threshold, the comprehensive result is unqualified.

[0036] Specifically, in some embodiments, a third preset threshold is set as the minimum value of the number of qualified cells in the target cassette; a fourth preset threshold is set as the maximum value of the number of defective cells in the target cassette. When the number of qualified cells in the target cassette is less than the third preset threshold and the number of defective cells in the target cassette is greater than the fourth preset threshold, the target cassette does not meet the production requirements. For example, the total number of cells in the target cassette is 100, the third preset threshold is 95, and the fourth preset threshold is 8; when among the 100 cells in the target cassette, there are more than or equal to 95 qualified cells and less than or equal to 8 defective cells, the target cassette meets the production requirements, and at this time, no interception process is performed on the target cassette; if among the 100 cells in the target cassette, the number of qualified cells is less than 95 and / or the number of defective cells exceeds 8, the target cassette does not meet the production requirements, and at this time, an interception process needs to be performed on the target cassette. In some other embodiments, the comprehensive result of the target cassette can be determined only based on the number of qualified cells in the target cassette; in some other embodiments, the comprehensive result of the target cassette can be determined only based on the number of defective cells in the target cassette. It should be noted that in the above example, the specific values of the number of cells in the target cassette, the third preset threshold, and the fourth preset threshold are only for illustrative purposes and do not affect the actual content of the solution of the present application. Those skilled in the art can adjust the number of cells in the target cassette, the third preset threshold, and the fourth preset threshold according to actual production requirements, and the present application does not limit this here.

[0037] In some embodiments, the defect type of the target cell includes minor defects and major defects; calculating the defect rate of all the cells in the target cassette specifically includes: calculating the first defect proportion of the cells with minor defects in the target cassette in the target cassette and the second defect proportion of the cells with major defects in the target cassette in the target cassette; determining the defect rate according to the first defect proportion and the second defect proportion.

[0038] Specifically, in the present application, the defect types of the solar cells are distinguished according to the severity of the defects of the solar cells. Minor defects refer to minor defect situations such as broken grids of the solar cells, which will not have a serious impact on the operation of the photovoltaic module. Severe defects include severe defect situations such as cracks in the solar cells, which will have a serious impact on the operation of the photovoltaic module, such as causing a significant drop in power or even the solar cell basically losing its power generation function. In addition, for the solar cells with a qualified rejudgment result, they may not be included in the defect types, or the defect type of the solar cells with a qualified rejudgment result is recorded as no defect. When calculating the defect rate, only the solar cells with minor defects and severe defects are used to calculate the defect rate of all the solar cells in the target bin.

[0039] Specifically, in some embodiments, the defect rate can be calculated based on the first defect ratio and the second defect ratio; wherein, the first defect ratio is the ratio of the number of solar cells with minor defects to the number of all the solar cells in the target bin; the second defect ratio is the ratio of the number of solar cells with severe defects to the number of all the solar cells in the target bin. The value of the defect rate can be the sum of the first defect ratio and the second defect ratio, or can be obtained by performing a weighted calculation on the first defect ratio and the second defect ratio and then summing them according to actual requirements. It should be noted that in the above examples, the calculation methods of the first defect ratio, the second defect ratio, and the defect rate are only for illustrative purposes, and those skilled in the art can make corresponding adjustments to the specific calculation methods of the first defect ratio and the second defect ratio according to actual production requirements, and the present application does not limit this here.

[0040] In some embodiments, the defect types of the target solar cells include minor defects and severe defects; calculating the defect rate of all the solar cells in the target bin specifically includes: obtaining the first target virtual serial number of the solar cells with minor defects in the target bin, and the second target virtual serial number of the solar cells with minor defects in the target bin; determining the probability of adjacent defect solar cells in the target bin according to the first target virtual serial number and the second target virtual serial number, and determining the defect rate according to the probability of adjacent defect solar cells.

[0041] Specifically, in the target bin, all the target solar cells with minor defects are recorded as the first target solar cells, and the virtual serial number of the first target solar cells is the first target virtual serial number; all the target solar cells with severe defects are recorded as the second target solar cells, and the virtual serial number of the second target solar cells is the second target virtual serial number.

[0042] In one case, the number of defective cell groups is determined according to the virtual serial numbers of the defective cells; the number of cells in a defective cell group is 2, and all the cells in the defective cell group have minor defects and / or serious defects, that is, adjacent cells with any kind of defect are recorded as a defective cell group. In other cases, adjacent cell groups with only adjacent minor defects or serious defects are recorded as defective cell groups; adjacent cell groups including both minor defects and serious defects can also be recorded as defective cell groups. At this time, among the two cells in a group of defective cell groups, one cell is a cell with minor defects, and the other cell is a cell with serious defects. Those skilled in the art can make corresponding adjustments to the selection of the specific defect conditions of the cells in the defective cell group according to actual production requirements, and this application does not limit it here.

[0043] In a practical example, taking the case where adjacent cells with any defect are recorded as a defective cell group as an example, there is a first target cell with minor defects and a second target cell with serious defects, and the first target virtual serial number corresponding to the first target cell and the second target virtual serial number corresponding to the second target cell are adjacent virtual serial numbers. Then, record the first target cell and the second target cell as a group of defective cells. It should be noted that the two cells in the defective cell group must be adjacent cells. The defect rate of the target cassette is the number of defective cell groups in the target cassette and the number of all adjacent cell groups in the target cassette; when the defect rate is greater than the second preset threshold, the defect rate of the target cassette does not meet the production requirements. For example, in a cassette with 100 cells, the second preset threshold is 2%, and the number of adjacent cell groups is the total number of cells - 1, that is, 99 groups; the first target virtual serial number of the first target cell is 001, the second target virtual serial number of the second target cell is 002, the first target cell has minor defects, the second target cell has serious defects, and both the first target cell and the second target cell are defective cells. Then, record the cell group formed by the first target cell and the second target cell as a defective cell group. If there are 3 groups of defective cell groups in the target cassette, the defect rate of the target cassette is 3%. At this time, the defect rate of the target cassette > the second preset threshold, and the defect rate of the target cassette does not meet the production requirements. It should be noted that in the above example, the specific values of the total number of cells in the target cassette, the second preset threshold, and the virtual serial number are only for illustration and do not affect the actual content of the solution of this application. Those skilled in the art can adjust the number of cells in the target cassette, the second preset threshold, and the virtual serial number according to actual production requirements, and this application does not limit it here.

[0044] In step 104, when the comprehensive result is unqualified, the offline rejudgment device performs an interception process on the target cartridge.

[0045] In some embodiments, the interception process on the target cartridge includes: sending the information of the target solar cell to a solar cell interception device for tracking and interception; wherein, the information of the target solar cell includes: the target image of the target solar cell, the test time, the test line number, and the target virtual serial number. In addition, the information of the target solar cell further includes: the test time, the model specification, the test equipment number, etc. It should be noted that the information of the target solar cell can be adjusted correspondingly according to actual production requirements, and the present application does not limit this here.

[0046] In a photovoltaic production line, the solar cell interception device is a part of the MES terminal. The MES terminal is the relevant terminal or platform of the Manufacturing Execution System. The MES terminal can receive the production plan from the enterprise resource planning system, decompose the production plan into specific production tasks, reasonably arrange the production sequence and time, and schedule resources such as manpower and equipment to ensure that the production tasks are completed on time.

[0047] In some embodiments, before the interception process on the target cartridge, the method further includes: obtaining the information of all solar cells in the target cartridge, generating unqualified prompt information of the target cartridge according to the information of all solar cells in the target cartridge, and sending the unqualified prompt information to the user client. Further, after the user client obtains the interception instruction of the user and determines to intercept the target cartridge, an interception instruction is generated and sent to the solar cell interception device and the offline rejudgment device; after receiving the interception instruction, the offline rejudgment device sends the information of the target cartridge to the MES terminal, and after receiving the information of the target cartridge, the MES terminal intercepts the target cartridge. That is, after rejudging that the target cartridge does not meet the production requirements, the present application can also send the information of the target cartridge and the unqualified prompt information to the user client, allowing the user to confirm whether to continue intercepting the target cartridge according to the actual situation, thereby improving the flexibility of interception and the operability of the user.

[0048] In some embodiments, after the MES terminal intercepts and fishes out the target cartridge, it identifies the solar cells with unqualified rejudgment results in the target cartridge according to the information of the target cartridge.

[0049] In the embodiments of the present invention, after the on-line detection of the target solar cell, the solar cells with qualified on-line detection results are subjected to off-line re-verification, so that the solar cells can be subjected to secondary detection before packaging, improving the product quality of the solar cells and avoiding losses in downstream processes; moreover, the re-verification results of the solar cells are integrated according to the batches of the cassettes, and when intercepting, the cassettes that do not meet the production requirements are intercepted for defective solar cells according to the batches of the cassettes, reducing the difficulty of interception and improving the interception efficiency; since off-line re-verification is further carried out based on the results of on-line detection, the acquisition efficiency of solar cell information is improved and the computing pressure on the system is reduced; in addition, the secondary re-verification inspection of solar cells and the interception of defective solar cells are realized through a fully automatic process, saving the human resources and time required for the work of intercepting defective solar cells and reducing the labor cost of the enterprise.

[0050] The step division of the above method is only for clear description. When implemented, it can be combined into one step or some steps can be split into multiple steps. As long as the same logical relationship is included, it is within the protection scope of this patent; adding insignificant modifications to the algorithm or process or introducing insignificant designs, but not changing the core design of its algorithm and process are within the protection scope of this patent.

[0051] In addition, the examples mentioned in the above embodiments can be freely combined, and any combination method can be understood as an embodiment. The "embodiment" or "example" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art can understand that the embodiments described herein can be combined with other embodiments.

[0052] In summary, specific embodiments of the present subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the acts recited in the claims can be performed in a different order and still achieve the desired result. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired result.

[0053] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.

[0054] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship describing associated objects, indicating that there can be three relationships. For example, A and / or B can mean: the existence of A, the simultaneous existence of A and B, and the existence of B. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0055] As used herein, features (such as regions, structures, devices) described as "adjacent" to each other mean and include features having one or more of the disclosed identifiers that are positioned closest (e.g., nearest) to each other. Additional features (such as additional regions, additional structures, additional devices) that do not match one or more of the disclosed identifiers of the "adjacent" features can be disposed between the "adjacent" features. In other words, the "adjacent" features can be positioned directly adjacent to each other such that no other features intervene between the "adjacent" features; or the "adjacent" features can be positioned indirectly adjacent to each other such that at least one feature having an identifier other than the identifier associated with at least one "adjacent" feature is positioned between the "adjacent" features.

[0056] Another embodiment of the present invention relates to a solar cell interception system, as Figure 2 shown, including: an on-line detection device 201, an off-line re-verification device 202, and a solar cell interception device 203; the on-line detection device 201 is configured to perform on-line quality detection on the target solar cells in the target cartridge and obtain the on-line detection result of the target solar cells; the off-line re-verification device 202 is configured to execute the solar cell interception method as described above; the solar cell interception device 203 is configured to receive the interception information sent by the off-line re-verification device and intercept the target cartridge.

[0057] In some embodiments, as Figure 3As shown, the cell interception system further includes a user client 204. The user client 204 is connected and communicates with the offline re-verification device 202 and the cell interception device 203. Before intercepting the target cartridge, the offline re-verification device 202 obtains information of all cells in the target cartridge, generates unqualified prompt information of the target cartridge according to the information of all cells in the target cartridge, and sends the unqualified prompt information to the user client 204. Further, after the user client 204 obtains the interception instruction of the user and determines to intercept the target cartridge, it generates an interception instruction and sends the interception instruction to the cell interception device 203 and the offline re-verification device 202; after receiving the interception instruction, the offline re-verification device 202 sends the information of the target cartridge to the cell interception device 203. After receiving the information of the target cartridge, the cell interception device 203 intercepts the target cartridge. That is, after the target cartridge is re-verified and found not to meet the production requirements in this application, the information of the target cartridge and the unqualified prompt information can also be sent to the user client, so that the user can confirm whether to continue intercepting the target cartridge according to the actual situation, thereby improving the flexibility of interception and the operability of the user.

[0058] In the embodiment of the present invention, after the online detection of the target cell, the offline re-verification of the cells with qualified online detection results is performed, so that the cells can be secondarily detected before packaging, improving the product quality of the cells and avoiding losses in downstream processes; and, the re-verification results of the cells are integrated according to the batches of the cartridges, and when intercepting, the cartridges that do not meet the production requirements are intercepted for defective cells according to the batches of the cartridges, reducing the difficulty of interception and improving the interception efficiency; since the offline re-verification is further performed according to the results of the online detection, the acquisition efficiency of cell information is improved and the computing pressure of the system is reduced; in addition, the secondary re-verification inspection of the cells and the interception of defective cells are realized through a fully automatic process, saving the human resources and time required for the interception work of defective cells and reducing the labor cost of the enterprise.

[0059] It is not difficult to find that this embodiment is a device embodiment corresponding to the above method embodiment, and this embodiment can be implemented in cooperation with the above method embodiment. The relevant technical details mentioned in the above method embodiment are still valid in this embodiment. To avoid repetition, they are not described here again. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the above method embodiment.

[0060] It is worth mentioning that each module involved in this embodiment is a logical module. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or can be implemented by a combination of multiple physical units. In addition, to highlight the innovative part of the present invention, units not closely related to solving the technical problems proposed by the present invention are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

[0061] Another embodiment of the present invention relates to an electronic device, as Figure 4 shown, including at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the battery cell interception method as described above.

[0062] Among them, the memory and the processor are connected in a bus manner. The bus can include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and the memory together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be an element or multiple elements, such as multiple receivers and transmitters, and provides a unit for communicating with various other devices on the transmission medium. The data processed by the processor is transmitted on the wireless medium through the antenna. Further, the antenna also receives data and transmits the data to the processor.

[0063] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. The memory can be used to store data used by the processor when executing operations.

[0064] Another embodiment of the present invention relates to a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the above method embodiment is implemented.

[0065] That is, those skilled in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing relevant hardware through a program. This program is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs.

[0066] Another embodiment of the present invention relates to a computer program product storing a computer program, including computer instructions, which when executed by a processor, implement the above method embodiments.

[0067] Those of ordinary skill in the art can understand that the above embodiments are specific embodiments for implementing the present invention, and in practical applications, various changes can be made in form and details without departing from the spirit and scope of the present invention.

Claims

1. A battery cell interception method, characterized in that: include: Obtaining online detection results of target cells in a target material box; When the online detection result of the target battery cell is qualified, performing an offline quality re-judgment on the target battery cell to obtain a re-judgment result of the target battery cell; In the case where the re-judgment result of the target battery cell is unqualified, the re-judgment results of all the battery cells in the target material box are integrated to obtain a comprehensive result of all the battery cells in the target material box under the offline quality re-judgment; When the comprehensive result is unqualified, the target material box is intercepted.

2. The battery cell interception method according to claim 1, characterized in that: The re-judgment result includes a qualified result of the target battery cell and a defect type of the target battery cell; The re-judgment results of all the battery cells in the target material box are integrated to obtain the comprehensive results of all the battery cells in the target material box under the offline quality re-judgment, including: Obtaining qualified results and defect types of all battery cells in the target material box, calculating the qualified rate of all battery cells in the target material box, and calculating the defect rate of all battery cells in the target material box; When the qualified rate is less than a first preset threshold, and / or the defect rate is greater than a second preset threshold, the comprehensive result is unqualified.

3. The battery cell interception method according to claim 2, characterized in that: The defect types of the target cell include slight defects and severe defects; The calculating the defect rate of all the battery cells in the target material box specifically includes: Calculate the first defect ratio of the battery cells with slight defects in the target material box and the second defect ratio of the battery cells with serious defects in the target material box; The defect rate is determined according to the first defect ratio and the second defect ratio.

4. The battery cell interception method according to claim 2, characterized in that: The defect types of the target cell include slight defects and severe defects; The calculating the defect rate of all the battery cells in the target material box specifically includes: Obtaining a first target virtual serial number of a battery cell with a slight defect in the target material box and a second target virtual serial number of a battery cell with a slight defect in the target material box; The probability of adjacent defective battery cells in the target material box is determined according to the first target virtual serial number and the second target virtual serial number, and the defect rate is determined according to the probability of adjacent defective battery cells.

5. The battery cell interception method according to claim 1, characterized in that: The offline quality re-judgment of the target battery cell includes: Acquire a target image of the target cell according to an online detection result of the target cell; Performing offline image re-judgment detection on the target image; When it is detected that the target cell has defects, the defect type and target cell information of the target cell are acquired according to the target image, and the target image is locked.

6. The battery cell interception method according to any one of claims 1 to 5, characterized in that: The intercepting process of the target material box includes: sending the information of the target battery cell to a battery cell intercepting device for tracking and intercepting; The information of the target battery cell includes: a target image, a test time, a test line, and a target virtual serial number of the target battery cell.

7. The battery cell interception method according to claim 6, characterized in that: Before intercepting the target material box, the method further includes: The information of all the battery cells in the target material box is obtained, unqualified prompt information of the target material box is generated according to the information of all the battery cells in the target material box, and the unqualified prompt information is sent to the user client.

8. A battery cell interception system, characterized in that: include: Online detection device, offline re-judgment device and battery cell interception device; The online detection device is used to perform online quality detection on the target battery cell in the target material box and obtain the online detection result of the target battery cell; The offline re-judgment device is used to execute the battery cell interception method according to any one of claims 1 to 7; The battery cell interception device is used to receive the interception information sent by the offline re-judgment device and intercept the target material box.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the battery cell interception method according to any one of claims 1 to 7 is implemented.

10. A computer program product, characterized in that It comprises computer instructions, which, when executed by a processor, implement the battery cell interception method as claimed in any one of claims 1 to 7.

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