A method, device, equipment and storage medium for analyzing a battery measurement system

Abstract

The present application is applicable to the field of measurement technology and provides a battery measurement system analysis method, device, equipment and storage medium, wherein the method includes: setting a standard part to be tested in a first position, wherein the standard part to be tested is designed to imitate the battery to be tested in a second position; each of the standard parts to be tested corresponds to a parameter true value; performing measurement processing on the standard part to be tested in the first position by the measurement system to obtain a parameter measurement value output by the measurement system; and obtaining a measurement system analysis result based on the parameter true value and the parameter measurement value.

Description

Technical Field

[0001] The present application relates to the field of measurement technology, and in particular to a battery measurement system analysis method, apparatus, device, and storage medium. Background Art

[0002] During battery manufacturing, high-potential (Hi-pot) testing is a critical step in ensuring battery insulation performance and safety. To ensure accurate and stable test results within the measurement system, regular measurement system analysis (MSA) is required.

[0003] Because Hi-pot testing involves high voltage and is destructive to equipment or materials, it is difficult to repeat. Test data processing and analysis are complex, especially for destructive testing. This makes it difficult to accurately assess the consistency and accuracy of test results within the measurement system, making it difficult to obtain valid MSA results. Summary of the Invention

[0004] The embodiments of the present application provide a battery measurement system analysis method, apparatus, device, and storage medium to address the problem in existing destructive testing that the test consistency and accuracy of the measurement system cannot be accurately evaluated, and effective MSA results are difficult to obtain.

[0005] A first aspect of an embodiment of the present application provides a battery measurement system analysis method, the method comprising:

[0006] Setting a standard part to be tested, wherein the standard part to be tested is designed to imitate the battery to be tested; each of the standard parts to be tested corresponds to a true value of a parameter;

[0007] Performing measurement processing on the standard component to be measured by the measurement system to obtain parameter measurement values output by the measurement system;

[0008] Based on the true value of the parameter and the measured value of the parameter, a measurement system analysis result is obtained.

[0009] In the above process, when performing MSA processing on the measurement system, the standard parts of the simulated battery are used as the measurement objects to implement the measurement processing, and the parameter measurement values of the corresponding output of the measurement system are obtained. This reduces the data interference of the actual variation of the product on the variation of the measurement system in the destructive test, effectively obtains the actual measurement system variation data of the measurement system when performing the measurement task, realizes the independent evaluation of the repeatability of the measurement system itself, and ensures the effective analysis results of the repeatability analysis of the measurement system.

[0010] In some embodiments, performing measurement processing on the standard component to be measured by the measurement system to obtain a parameter measurement value output by the measurement system includes:

[0011] The measurement system is used to perform a set number of performance measurement processes on each of the standard components to be measured using different test parameters to obtain the parameter measurement values output by the measurement system.

[0012] By automatically and repeatedly measuring the standard parts to be tested of the imitation battery and adopting an automated processing process, manual intervention is effectively reduced, the reliability and efficiency of the measurement are improved, and the repeatability of the measurement system can be accurately evaluated, thereby improving the overall measurement accuracy and reliability.

[0013] In some embodiments, setting the standard component to be tested includes:

[0014] A standard component to be tested is set in the first position, and the standard component to be tested is designed based on the battery to be tested in the second position.

[0015] By dividing the warehouses and distinguishing between the standard parts to be tested and the batteries to be tested in different warehouses, we ensure that the measurement system can test the batteries normally and perform effective MSA processing on the measurement system. By switching between different warehouses, we can achieve intelligent production and processing and coordination between different processing stages.

[0016] In some embodiments, performing measurement processing on the standard component to be measured by the measurement system to obtain a parameter measurement value output by the measurement system includes:

[0017] Controlling the probe of the measuring system to be transferred from the second position to the first position;

[0018] The probe is moved to each of the standard parts to be tested in the first position. Each time the probe is moved to a standard part to be tested, the measurement process is performed on the current standard part to be tested to obtain the parameter measurement value output by the measurement system until the measurement of each standard part to be tested is completed.

[0019] The above-mentioned processing procedure obtains the standard parts to be tested by imitating the design of the battery to be tested. By automatically and repeatedly measuring the standard parts to be tested, a large amount of test data can be efficiently processed and analyzed, the repeatability of the measurement system can be accurately evaluated, and real-time feedback and reports can be provided. The automatic generation of evaluation reports reduces the complexity and possibility of errors in manual operations, improves the accuracy and reliability of the overall measurement of the measurement system, and improves the consistency and reliability of the measurement results of the measurement system. The operation process is more simplified and efficient, and the performance of the measurement system can be objectively and accurately evaluated without manual intervention. Complex measurement system analysis can be completed in a short time, reducing time delays and cost increases caused by manual operations, and improving production efficiency.

[0020] In some embodiments, the step of transferring the probe of the measurement system from the second position to the first position includes:

[0021] Controlling the probe to a fixed measurement position in the second position to perform measurement processing on each of the batteries to be tested that are transferred;

[0022] When a set event is triggered, the measurement position of the probe is controlled to transfer from the second position to the first position.

[0023] The above process, through the application of automation technology, can significantly improve the testing efficiency in the battery production process and enhance production efficiency. By accurately measuring and processing the battery parameters, potential quality problems can be effectively detected, ensuring the safety and reliability of the final product, meeting industry standards and customer requirements, and ensuring product quality.

[0024] In some embodiments, after obtaining the measurement system analysis result based on the true value of the parameter and the measured value of the parameter, the method further includes:

[0025] Controlling the probe to move from the first position to the second position;

[0026] Return to the step of controlling the probe to be in the fixed measurement position of the second bin and performing measurement processing on each of the batteries to be tested that are transferred.

[0027] The above process ensures that the performance of the measurement system meets the requirements by transferring the probe between different positions. The operation position is automatically transferred to achieve effective measurement and processing of the battery to be tested, ensuring the test intelligence and effectiveness of the measurement system and improving production efficiency.

[0028] In some embodiments, the parameter measurement values are written into a table and then stored in a set storage path; obtaining a measurement system analysis result based on the parameter true value and the parameter measurement value includes:

[0029] Capture the measurement data value of the set field from the table stored in the set storage path, and upload the measurement data value to the quality information system according to the data item corresponding to the set field;

[0030] The measurement system analysis result generated by the quality information system after analyzing the measurement data value according to the data item based on the parameter true value is obtained.

[0031] The data in different fields correspond to corresponding data items, enabling effective identification and acquisition of specific data.

[0032] In this way, the measurement data can be automatically captured and uploaded, and automatic data analysis can be performed after the captured data is uploaded to the QIS system, ensuring that complex analysis tasks are completed in a short time, automatically generating MSA reports, providing real-time measurement system analysis feedback and result reports, and realizing the automatic generation of evaluation reports, reducing the complexity of manual operations and the possibility of errors, simplifying the operation process, improving analysis efficiency, significantly improving test accuracy and production efficiency, and enhancing the quality control level of the production process.

[0033] In some embodiments, the measurement system analysis result includes a gauge repeatability capability index Cg and a gauge accuracy capability index Cgk, as well as a measurement system evaluation result generated by comparing Cg and Cgk with threshold values, respectively.

[0034] Using Cg and Cgk instead of GRR indicators to evaluate the performance of the measurement system can adapt to the special needs of destructive testing, reduce the data interference of the actual product variation on the measurement system variation during destructive testing, ensure accurate evaluation of the measurement system performance in each test, improve the evaluation accuracy of the measurement system, and ensure the test accuracy and data reliability of the measurement system.

[0035] In some embodiments, the battery to be tested that the standard component to be tested imitates is a set model;

[0036] The data item is determined based on the set model of the battery to be tested; the measurement system analysis result is generated based on an analysis template corresponding to the set model of the battery to be tested, and the analysis template contains specific analysis content of the battery to be tested of the set model.

[0037] In this way, based on the adaptation relationship between the measurement system and the battery model, as well as the analysis correspondence between the battery model and specific analysis content, appropriate analysis templates can be adapted, and targeted MSA processing of the measurement system can be automatically implemented, thereby improving data analysis efficiency and the intelligence of the MSA processing process.

[0038] In some embodiments, the method further comprises:

[0039] Obtaining battery testing requirements, wherein the battery testing requirements include a battery model;

[0040] Based on the battery test requirements, determining test items matching the battery model and target test parameters associated with the test items; the target test parameters are used by the measurement system to perform measurement processing;

[0041] Displaying an adjustment interface for the target test parameters;

[0042] The target test parameters adjusted by the user based on the adjustment interface are obtained.

[0043] In the above steps, the system allows users to adjust test parameters such as the number of measurements and measurement range through the software interface. Adjusting parameter settings through the software can adapt to the testing requirements of batteries of different specifications and types. This allows the system to adapt to different test conditions and requirements, improving its versatility and applicability, and providing flexible design.

[0044] A second aspect of an embodiment of the present application provides a battery measurement system analysis device, the device comprising:

[0045] A setting module is used to set a standard part to be tested, wherein the standard part to be tested is designed based on the battery to be tested; each standard part to be tested corresponds to a true value of a parameter;

[0046] A measuring module, configured to perform measurement processing on the standard component to be measured by the measuring system to obtain parameter measurement values output by the measuring system;

[0047] A generating module is used to obtain a measurement system analysis result based on the true value of the parameter and the measured value of the parameter.

[0048] A third aspect of an embodiment of the present application provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to call computer instructions so that the computer device implements the steps of the method described in the first aspect when executing the computer program.

[0049] A fourth aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0050] The fifth aspect of the present application provides a computer program product, including a computer-readable code, or a non-volatile computer-readable storage medium carrying the computer-readable code. When the computer-readable code runs in an electronic device, the processor in the electronic device calls the computer-readable code to enable the electronic device to perform the steps in the method described in the first aspect.

[0051] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0053] Figure 1 is a schematic diagram of a cross-type test in a repeatable measurement scenario in some embodiments of the present application;

[0054] Figure 2 This is a schematic diagram of nested testing in a destructive testing scenario in some embodiments of the present application;

[0055] Figure 3 This is the process of the battery measurement system analysis method of some embodiments of the present application Figure 1 ;

[0056] Figure 4 This is the process of the battery measurement system analysis method of some embodiments of the present application Figure 2 ;

[0057] Figure 5 It is a table diagram of some embodiments of the present application;

[0058] Figure 6 This is the process of the battery measurement system analysis method of some embodiments of the present application Figure 3 ;

[0059] Figure 7 is a structural diagram of a battery measurement system analysis device according to some embodiments of the present application;

[0060] Figure 8 It is a structural diagram of the computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0063] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0064] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0065] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0066] In the embodiment of the present application, the battery may be a battery apparatus, a battery cell assembly, a battery cell, etc.

[0067] The battery device may include one or more battery cell assemblies to provide voltage and capacity. In some embodiments, the battery device may be a battery pack, which includes a housing and one or more battery cell assemblies housed in the housing.

[0068] A battery cell assembly may include multiple battery cells. A battery cell assembly may be formed by arranging multiple battery cells, which are connected in series, parallel, or parallel via a busbar. In some embodiments, a battery cell assembly may be a battery module, which is formed by arranging and securing multiple battery cells to form a single module.

[0069] A battery cell is the smallest unit that makes up a battery. A battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. A battery cell can be cylindrical, flat, rectangular, or have other shapes.

[0070] The battery disclosed in the embodiments of the present application can be used in electrical devices that use the battery as a power source or in various energy storage systems that use the battery as an energy storage element.

[0071] Electrical devices may include, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery-powered vehicles, electric cars, ships, spacecraft, etc. Electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0072] Measurement system analysis is a statistical analysis method that uses statistical analysis to analyze and study the various influencing factors that make up the measurement system to determine whether the measurement system is accurate and reliable. By analyzing the measurement system, MSA can determine the sources of variation in measurement results, including the impact of factors such as measurement equipment, operators, measurement methods, and environment on the measurement results. Appropriate measures can then be taken to improve the measurement system, ensure the quality of measurement data, and provide a reliable basis for product quality control and process improvement.

[0073] In some implementation processes, MSA can be divided into two categories based on whether the test can be repeated. One category is repeatable measurement, such as battery size measurement, and the other category is non-repeatable, destructive testing, such as tensile disassembly testing, high-voltage insulation testing, etc.

[0074] In the first category, each component will be tested repeatedly by different personnel, and there is overlap between components and personnel, using a cross-analysis method. Figure 1 As shown, the same component can be repeatedly tested by multiple personnel, and personnel A, personnel B, and personnel C test component 1 and component 2 respectively.

[0075] In the second category, since the test is destructive and the component cannot be tested again after it is damaged, each test is performed by an independent person and a nested structure analysis method is used. Figure 2 As shown, one person can perform tests on multiple components separately. Personnel A tests components 1 and 2, personnel B tests components 3 and 4, and personnel C tests components 5 and 6.

[0076] This allows for analysis of the measurement system's repeatability and accuracy through statistical analysis of measurement results, enabling MSA processing. The current MSA process requires manual on-site testing, data processing, and notification of MSA NGs to the site. This manual process is time-consuming, prone to human error, and complex. The lack of automated data recording and analysis prevents automation and real-time feedback, making it impossible to accurately assess the repeatability of the measurement system. This, particularly for destructive testing, hinders data and report quality.

[0077] And in some testing processes, taking the Hi-pot test as an example, the Hi-pot test is a key link in battery production and quality control. It is mainly used to evaluate the insulation performance and pressure resistance of the battery under high-voltage environment to ensure its safety during use or abnormal conditions.

[0078] Hi-pot testing can occur during the battery manufacturing process, for example, before cold-pressing the battery cell winding / pre-welding it into the shell / before the first injection of liquid, the Hi-pot process is performed to test the battery insulation performance and prevent the risk of missing short-circuited batteries.

[0079] In practice, the insulation strength can be verified to meet safety standards by applying a high voltage higher than the normal operating voltage (usually 2 times the rated voltage or higher) to the insulator for a certain period of time to observe whether breakdown occurs or leakage current exceeds the standard.

[0080] Hi-pot test is a high-voltage test. Repeated testing is destructive to the battery and the test cannot be repeated.

[0081] In destructive testing scenarios, measurement system analysis assumes that some samples, components, or products are very similar and do not change over time during the measurement period. If products within the same batch are highly similar, they can be considered the same sample. Based on this, MSA for destructive testing requires GRR (Gage Repeatability and Reproducibility) testing and assessment to evaluate the reliability and stability of the measurement system.

[0082] However, the conditions of different batteries produced in actual production as test samples are not exactly the same. As a result, the variation in the measurement values after the sample testing based on the measurement system during MSA analysis includes both the variation between samples (products) and the variation of the actual measurement system itself. MSA tends to only obtain the variation of the measurement system.

[0083] That is, in destructive testing, in nested GRR test evaluation, the total variation σ corresponding to the measured value output by the measurement system after measuring the sample is Total Affected by two factors, one is the actual variation of the product σ Product , the other is the measurement system variation σ MS The measurement system variation σ MS Reflected in the repeatability variation of the measurement system σ Reproducibility and reproducibility variation σ Repeatibility Two aspects.

[0084] Optionally, σ 2Total =σ 2 Product +σ 2 MS。

[0085] σ 2 MS =σ 2 Reproducibility +σ 2 Repeatibility。

[0086] Due to the special nature of destructive testing, each sample can only be tested once in a destructive test, and multiple repeated measurements cannot be performed to evaluate GRR.

[0087] Repeatability in GRR testing includes both the repeatability of the measurement system itself and the differences between parts considered the same. The repeatability of the measurement system itself cannot be evaluated in isolation, and therefore cannot accurately reflect the repeatability of the measurement system. Therefore, traditional GRR analysis methods are not applicable to destructive testing.

[0088] In order to illustrate the technical solution described in this application, specific embodiments are provided below.

[0089] Combine Figure 3 As shown, in some embodiments, a battery measurement system analysis method is proposed, including:

[0090] Step 301: Set the standard component to be tested.

[0091] The standard part to be tested is designed based on the battery to be tested; each standard part to be tested has a corresponding true value of a parameter.

[0092] The true value of a parameter refers to the actual physical value of the object being measured (such as length, temperature, voltage, resistance, etc.).

[0093] The standard component to be tested is, for example, a resistance standard component imitating a battery. The true value of the parameter of the standard component to be tested can be a resistance calibration value, etc.

[0094] In this process, a battery is simulated to form a standard component to be tested, and the standard component to be tested is used as the test object. For example, multiple resistance standard components can be designed based on the battery, and the true value of the parameters of each resistance standard component can be calibrated.

[0095] Optionally, during the implementation process, when setting the standard parts to be tested, the measurement system can be controlled to unload and stop. After the standard parts to be tested are set, the automatic MSA mode is turned on, or the MSA mode is turned on by clicking "Hi-pot One-key MSA" on the host computer.

[0096] Step 302 : The measurement system performs measurement processing on the standard component to be measured, and obtains parameter measurement values output by the measurement system.

[0097] The measurement process is, for example, a Hi-pot test, or other destructive tests.

[0098] In practice, when measuring a standard part to be tested, repeated measurements can be performed based on set standards. During this repeated measurement process, a programmable logic controller (PLC) can be used to measure the standard part to be tested, simulating a battery, enabling automated repeated measurements of the measurement system's analysis data.

[0099] A PLC is a device used in industrial automation control that controls the movement of the measuring probe and the measurement process according to a preset program. Through PLC control, automatic and repeatable measurements of standard resistance blocks can be achieved.

[0100] Step 303: Obtain measurement system analysis results based on the true values of the parameters and the measured values of the parameters.

[0101] The parameter measurement value can be compared with the parameter true value to obtain the deviation between the measurement value and the true value and the data fluctuation of multiple measurement results.

[0102] Based on the comparison results, the consistency, accuracy, test repeatability, and reproducibility of the measurement system's test results are determined to reduce the data interference of the actual product variation in destructive testing on the measurement system variation. In this way, the measurement system analysis results are generated, and MSA for repeatability monitoring of the measurement system is implemented to achieve repeatability evaluation of the measurement system.

[0103] Optionally, the measurement system analysis results are presented in the form of a measurement system analysis report, for example.

[0104] In the above process, when performing MSA processing on the measurement system, the standard parts of the simulated battery are used as the measurement objects to implement the measurement processing, and the parameter measurement values of the corresponding output of the measurement system are obtained. This reduces the data interference of the actual variation of the product on the variation of the measurement system in the destructive test, effectively obtains the actual measurement system variation data of the measurement system when performing the measurement task, realizes the independent evaluation of the repeatability of the measurement system itself, and ensures the effective analysis results of the repeatability analysis of the measurement system.

[0105] In some embodiments, step 302, performing measurement processing on the standard component to be measured by the measurement system to obtain parameter measurement values output by the measurement system, includes:

[0106] Through the measurement system, a set number of performance measurement processes are performed on each standard component to be measured using different test parameters to obtain parameter measurement values output by the measurement system.

[0107] Optionally, different test parameters are used in various measurement processes of the same resistance standard.

[0108] During the test process, the PLC controls the measuring probe to repeatedly measure the standard component a preset number of times. The parameters and results of each measurement are automatically recorded and stored, ensuring rapid processing and analysis of large amounts of test data, completing complex analysis tasks in a short period of time, and ensuring efficient data processing.

[0109] Optionally, the preset number of times is, for example, 25 times, 30 times, etc.

[0110] By automatically and repeatedly measuring the standard parts to be tested of the imitation battery and adopting an automated processing process, manual intervention is effectively reduced, the reliability and efficiency of the measurement are improved, and the repeatability of the measurement system can be accurately evaluated, thereby improving the overall measurement accuracy and reliability.

[0111] In some embodiments, step 301 of setting a standard component to be tested includes:

[0112] A standard component to be tested is set in the first position, and the standard component to be tested is designed based on the battery to be tested in the second position.

[0113] During the implementation process, in the first position, the probe of the measuring component is moved to each standard part to be tested respectively; wherein, each time it moves to a standard part to be tested, different test parameters are used to perform a set number of performance measurement processes on the current standard part to be tested in turn until the measurement of each standard part to be tested is completed, and the performance measurement value output by the measurement system is obtained.

[0114] By dividing the warehouses and distinguishing between the standard parts to be tested and the batteries to be tested in different warehouses, we ensure that the measurement system can test the batteries normally and perform effective MSA processing on the measurement system. By switching between different warehouses, we can achieve intelligent production and processing and coordination between different processing stages.

[0115] In some embodiments, combined Figure 4 As shown, step 302 performs measurement processing on the standard part to be measured by the measurement system to obtain the parameter measurement value output by the measurement system, including:

[0116] Step 401: Control the probe of the measurement system to be transferred from the second position to the first position.

[0117] Step 402 : Move the probe to each standard part to be measured in the first position. Each time the probe moves to a standard part to be measured, the probe is measured to obtain parameter measurement values output by the measurement system until all standard parts to be measured are measured.

[0118] During the execution process, measurement processing is performed on the current standard part to be tested, and the parameter measurement value output by the measurement system can be obtained by performing performance measurement processing on the current standard part to be tested using different test parameters for a set number of times by the measurement system to obtain the parameter measurement value output by the measurement system, thereby effectively implementing performance measurement processing for the current standard part to be tested.

[0119] The probe is used to perform measurement processing on the standard part to be measured. This can be achieved through contact with the standard part to be measured (such as plugging) or non-contact (such as magnetic field induction, communication connection, etc.).

[0120] The switching of probes between positions can be achieved through PLC. Through automated control and switching, manual intervention is reduced, and the efficiency and accuracy of measurement and evaluation in the measurement system are improved.

[0121] Optionally, before the automated evaluation report is generated, the measurement operation is repeated a set number of times for each standard part to be measured, and the input parameters of each measurement operation are changed, so as to effectively measure the repeatability of the measurement system.

[0122] In this process, the automatic switching of probes in different positions in the measurement system is introduced. By switching the probes in different positions, the intelligence of production and processing and the coordination between different processing stages are realized. The automated processing process reduces manual intervention and improves the efficiency and accuracy of measurement and evaluation in the measurement system.

[0123] The above-mentioned processing procedure obtains the standard parts to be tested by imitating the design of the battery to be tested. By automatically and repeatedly measuring the standard parts to be tested, a large amount of test data can be efficiently processed and analyzed, the repeatability of the measurement system can be accurately evaluated, and real-time feedback and reports can be provided. The automatic generation of evaluation reports reduces the complexity and possibility of errors in manual operations, improves the accuracy and reliability of the overall measurement of the measurement system, and improves the consistency and reliability of the measurement results of the measurement system. The operation process is more simplified and efficient, and the performance of the measurement system can be objectively and accurately evaluated without manual intervention. Complex measurement system analysis can be completed in a short time, reducing time delays and cost increases caused by manual operations, and improving production efficiency.

[0124] Optionally, step 401 controls the probe of the measurement system to be transferred from the second position to the first position, including:

[0125] The control probe is at a fixed measurement position in the second bin to perform measurement processing on each battery to be tested that is transferred; when a set event is triggered, the control probe's measurement position is transferred from the second bin to the first bin.

[0126] The second position is where the battery is measured. The batteries to be tested are transferred to the second position. Each time a battery is transferred, the control probe is inserted into the battery to perform measurement processing on the battery.

[0127] Optionally, the set event is, for example, that a cycle duration of the measurement system analysis has arrived, wherein the cycle duration is, for example, one month, one quarter, or the like.

[0128] Alternatively, a set event could be receiving a measurement system analysis start command from an operator. Based on actual production needs, the probe is switched to the measurement position, and measurement processing of the standard parts is carried out, effectively conducting measurement system analysis and improving automated processing efficiency.

[0129] The above process, through the application of automation technology, can significantly improve the testing efficiency in the battery production process and enhance production efficiency. By accurately measuring and processing the battery parameters, potential quality problems can be effectively detected, ensuring the safety and reliability of the final product, meeting industry standards and customer requirements, and ensuring product quality.

[0130] In some embodiments, after obtaining the measurement system analysis results based on the true parameter values and the measured parameter values, step 303 further includes:

[0131] The control probe is transferred from the first bin to the second bin; the control probe is returned to the fixed measurement position of the second bin to perform the measurement process on each battery to be tested that is transferred.

[0132] The control probe is transferred from the first position to the second position when the analysis result of the measurement system meets the requirements.

[0133] The above process ensures that the performance of the measurement system meets the requirements by transferring the probe between different positions. The operation position is automatically transferred to achieve effective measurement and processing of the battery to be tested, ensuring the test intelligence and effectiveness of the measurement system and improving production efficiency.

[0134] In some embodiments, the parameter measurement values are written into the table and then stored in a set storage path.

[0135] Correspondingly, step 303 obtains the measurement system analysis results based on the true values of the parameters and the measured values of the parameters, including:

[0136] Capture the measurement data value of the set field from the table stored in the set storage path, and upload the measurement data value to the quality information system according to the data item corresponding to the set field; obtain the measurement system analysis result generated by the quality information system after analyzing the measurement data value based on the parameter true value and the data item.

[0137] This setting field is the field in the table where the parameter measurement value is entered. Alternatively, it is the target field within the table where the parameter measurement value is entered that corresponds to the specific data required for analysis. This ensures that the data in the corresponding data item can be read from the setting field and uploaded to the quality information system for automatic data analysis.

[0138] The data in different fields correspond to corresponding data items, enabling effective identification and acquisition of specific data.

[0139] In an optional implementation, combining Figure 5 As shown, when the measurement system automatically repeats the test of the simulated battery standard parts for the set number of times, the test result data is written into the table in the specified format and automatically saved to the specified path.

[0140] Then, based on the specified path, data can be captured from the table in a set manner. For example, the required target data can be captured through specific software, and the captured data can be uploaded to the QIS (Quality Information System) for automatic data analysis to generate measurement system analysis results.

[0141] QIS is a quality management software system that automatically analyzes and processes measurement data to generate evaluation reports. The QIS system can generate evaluation reports based on pre-set templates, which can include data such as measurement conditions, environmental parameters, and measurement results.

[0142] In this way, the measurement data can be automatically captured and uploaded, and automatic data analysis can be performed after the captured data is uploaded to the QIS system, ensuring that complex analysis tasks are completed in a short time, automatically generating MSA reports, providing real-time measurement system analysis feedback and result reports, and realizing the automatic generation of evaluation reports, reducing the complexity of manual operations and the possibility of errors, simplifying the operation process, improving analysis efficiency, significantly improving test accuracy and production efficiency, and enhancing the quality control level of the production process.

[0143] Optionally, during the process of QIS calculating and generating the MSA report, if an abnormality is detected in the calculation result, an automatic alarm will be issued to control the machine, thus achieving automatic error prevention and effectively avoiding human errors.

[0144] In some embodiments, the measurement system analysis results include a gage repeatability capability index Cg and a gage accuracy capability index Cgk, as well as a measurement system evaluation result generated by comparing Cg and Cgk with threshold values, respectively.

[0145] Cg (Capability Index for Gage Repeatability) is an indicator for measuring the repeatability accuracy of a measurement system. It is used to measure the consistency of the results when the measurement system repeatedly measures the same object under the same conditions (same operator, same equipment, same measured object).

[0146] Cgk (Capability Index for Gage Repeatability and Bias) is a measure of measurement system accuracy. It considers both repeatability and bias (the systematic deviation of the measurement mean from the reference true value) to assess both the repeatability and accuracy of a measurement system. Cgk not only assesses the consistency of measurement results but also takes into account the accuracy of the measurement system, combining repeatability and bias to evaluate the overall performance of the measurement system. A higher Cgk value indicates better repeatability and higher accuracy of the measurement system.

[0147] During the implementation process, key parameters such as Cg and Cgk can be automatically calculated based on set data items through built-in algorithms, and conclusions matching the comparison results can be obtained based on the comparison results of Cg and Cgk with the thresholds. According to the set report format, a data analysis report including Cg, Cgk and the conclusion can be obtained.

[0148] This enables analysis of the sensitivity and stability of the measurement system, and can objectively and accurately evaluate the sensitivity and stability of the measurement system in each test, evaluate the repeatability and accuracy of the measurement system, and ensure the consistency and accuracy of each measurement of the measurement system itself. No human intervention is required, saving time and resources, and improving the accuracy and efficiency of the evaluation.

[0149] For destructive testing, after each measurement is completed, the system automatically calls the built-in algorithm to process and statistically analyze the measurement data, calculate Cg and Cgk, and perform MSA instead of GRR (repeatability and reproducibility). By using these two indicators, Cg and Cgk, the performance of the measurement system is comprehensively evaluated, and its reliability and accuracy in actual applications are ensured. It can effectively adapt to destructive testing scenarios and carry out effective MSA processing.

[0150] In view of the destructive characteristics of tests such as Hi-pot, Cg and Cgk are used instead of GRR indicators to evaluate the performance of the measurement system. This can adapt to the special needs of destructive testing, reduce the data interference of the actual product variation on the measurement system variation during destructive testing, ensure accurate evaluation of the measurement system performance in each test, improve the evaluation accuracy of the measurement system, and ensure the test accuracy and data reliability of the measurement system.

[0151] In some embodiments, the battery to be tested that the standard part to be tested imitates is a set model; the data items corresponding to the aforementioned setting fields are determined based on the set model of the battery to be tested; the measurement system analysis results are generated based on the analysis template corresponding to the set model of the battery to be tested, and the analysis template contains specific analysis content of the battery to be tested of the set model.

[0152] In this way, based on the adaptation relationship between the measurement system and the battery model, as well as the analysis correspondence between the battery model and specific analysis content, appropriate analysis templates can be adapted, and targeted MSA processing of the measurement system can be automatically implemented, thereby improving data analysis efficiency and the intelligence of the MSA processing process.

[0153] Optionally, the measurement system is used to perform measurement processing on a set model of battery to be tested. The measurement data of different models of batteries can be analyzed by the measurement system, and parameter settings can be adjusted through software to adapt to the testing requirements of batteries of different specifications and types, thereby improving the versatility and applicability of the system.

[0154] In some embodiments, combined Figure 6 As shown, the method further includes:

[0155] Step 601: Obtain battery test requirements.

[0156] Battery testing requirements may include test parameters, test functions, test methods, etc.

[0157] Optionally, the battery test requirement includes a battery model.

[0158] Step 602: Based on the battery test requirements, determine test items that match the battery model and target test parameters associated with the test items.

[0159] The target test parameters are used by the measurement system to perform measurement processing.

[0160] Step 603: Display an adjustment interface for target test parameters.

[0161] Step 604: Obtain the target test parameters adjusted by the user based on the adjustment interface.

[0162] In the above steps, the system allows users to adjust test parameters such as the number of measurements and measurement range through the software interface. Adjusting parameter settings through the software can adapt to the testing requirements of batteries of different specifications and types. This allows the system to adapt to different test conditions and requirements, improving its versatility and applicability, and providing flexible design.

[0163] The above-described implementation process of the embodiment of the present application enables the measurement system to automatically repeat measurements of standard parts, automatically capture and upload measurement result data, and automatically perform data analysis and generate MSA reports after the measurement structure data is uploaded to the QIS system. This effectively reduces the number of personnel required for testing, greatly shortens the processing cycle, and improves test accuracy and production efficiency. Furthermore, to address the non-repeatability of destructive testing, the use of Cg and Cgk to evaluate measurement system performance avoids the limitations of traditional GRR testing and significantly improves the quality control level of the production process.

[0164] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0165] Based on the same inventive concept, embodiments of the present application also provide a battery measurement system analysis device. The battery measurement system analysis device provided in embodiments of the present application can implement each process of the embodiments of the battery measurement system analysis method described above and can achieve the same technical effects. Therefore, the specific limitations in one or more embodiments of the battery measurement system analysis device provided below can be referred to the limitations of the battery measurement system analysis method described above. To avoid repetition, they will not be repeated here.

[0166] In one embodiment, Figure 7 As shown, a battery measurement system analysis device 700 is provided, including:

[0167] The setting module 701 is used to set the standard parts to be tested, wherein the standard parts to be tested are designed based on the battery to be tested; each of the standard parts to be tested corresponds to a true value of a parameter;

[0168] The measurement module 702 is configured to perform measurement processing on the standard component to be measured by the measurement system to obtain parameter measurement values output by the measurement system;

[0169] The generating module 703 is configured to obtain a measurement system analysis result based on the true value of the parameter and the measured value of the parameter.

[0170] In some embodiments, the measurement module 702 is specifically configured to:

[0171] The measurement system is used to perform a set number of performance measurement processes on each of the standard components to be measured using different test parameters to obtain the parameter measurement values output by the measurement system.

[0172] In some embodiments, the setting module 701 is specifically configured to:

[0173] A standard component to be tested is set in the first position, and the standard component to be tested is designed based on the battery to be tested in the second position.

[0174] In some embodiments, the measurement module 702 is specifically configured to:

[0175] Controlling the probe of the measuring system to be transferred from the second position to the first position;

[0176] The probe is moved to each of the standard parts to be tested in the first position. Each time the probe is moved to a standard part to be tested, the measurement process is performed on the current standard part to be tested to obtain the parameter measurement value output by the measurement system until the measurement of each standard part to be tested is completed.

[0177] In some embodiments, the measurement module 702 is specifically configured to:

[0178] Controlling the probe to a fixed measurement position in the second position to perform measurement processing on each of the batteries to be tested that are transferred;

[0179] When a set event is triggered, the measurement position of the probe is controlled to transfer from the second position to the first position.

[0180] In some embodiments, the apparatus further comprises:

[0181] The control module is used to control the probe to be transferred from the first position to the second position; and return to execute the step of controlling the probe to be in the fixed measurement position of the second position and performing measurement processing on each of the transferred batteries to be tested.

[0182] In some embodiments, the parameter measurement values are written into a table and then stored in a set storage path; the generation module 703 is specifically configured to:

[0183] Capture the measurement data value of the set field from the table stored in the set storage path, and upload the measurement data value to the quality information system according to the data item corresponding to the set field;

[0184] The measurement system analysis result generated by the quality information system after analyzing the measurement data value according to the data item based on the parameter true value is obtained.

[0185] In some embodiments, the measurement system analysis result includes a gauge repeatability capability index Cg and a gauge accuracy capability index Cgk, as well as a measurement system evaluation result generated by comparing Cg and Cgk with threshold values, respectively.

[0186] In some embodiments, the battery to be tested that the standard part to be tested imitates is a set model; the data item is determined based on the set model of the battery to be tested; the measurement system analysis result is generated based on the analysis template corresponding to the set model of the battery to be tested, and the analysis template contains specific analysis content of the battery to be tested of the set model.

[0187] In some embodiments, the apparatus further comprises:

[0188] Parameter adjustment module, used to:

[0189] Obtaining battery testing requirements, wherein the battery testing requirements include a battery model;

[0190] Based on the battery test requirements, determining test items matching the battery model and target test parameters associated with the test items; the target test parameters are used by the measurement system to perform measurement processing;

[0191] Displaying an adjustment interface for the target test parameters;

[0192] The target test parameters adjusted by the user based on the adjustment interface are obtained.

[0193] Each module in the battery measurement system analysis device described above can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in hardware form, or stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0194] In one embodiment, Figure 8 As shown, a computer device is provided. The computer device 8 of this embodiment includes: at least one processor 800 ( Figure 8 Only one is shown in the figure), a memory 801 and a computer program 802 stored in the memory 801 and executable on the at least one processor 800, wherein the processor 800 implements the steps of any of the above-mentioned method embodiments when executing the computer program 802.

[0195] The computer device 8 may be a desktop computer, a notebook computer, a PDA, a cloud server or other computing devices. The computer device 8 may include, but is not limited to, a processor 800 and a memory 801. Those skilled in the art will understand that Figure 8This is merely an example of the computer device 8 and does not constitute a limitation of the computer device 8. The computer device 8 may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer device may also include input and output devices, network access devices, buses, etc.

[0196] The processor 800 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0197] The memory 801 can be an internal storage unit of the computer device 8, such as a hard drive or memory of the computer device 8. The memory 801 can also be an external storage device of the computer device 8, such as a plug-in hard drive, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on the computer device 8. Furthermore, the memory 801 can include both an internal storage unit of the computer device 8 and an external storage device. The memory 801 is used to store the computer program and other programs and data required by the computer device. The memory 801 can also be used to temporarily store data that has been output or is about to be output.

[0198] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0199] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0200] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0201] In the embodiments provided in this application, it should be understood that the disclosed apparatus / computer equipment and methods can be implemented in other ways. For example, the apparatus / computer equipment embodiments described above are merely schematic. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of the apparatus or unit, which can be electrical, mechanical or other forms.

[0202] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0203] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0204] If the integrated module / unit is implemented as a software functional unit and sold or used as a standalone product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application can implement all or part of the process steps in the above-mentioned method embodiments by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When executed by a processor, the computer program can implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal, and software distribution medium. It should be noted that the content of the computer-readable medium can be appropriately increased or decreased based on the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media does not include electric carrier signals and telecommunication signals.

[0205] The present application implements all or part of the processes in the above-mentioned embodiment methods, and may also be implemented through a computer program product. When the computer program product runs on a computer device, the computer device can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0206] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A battery measurement system analysis method, characterized in that: The method comprises: A standard component to be tested is set in the first position, wherein the standard component to be tested is designed based on the battery to be tested in the second position; each standard component to be tested corresponds to a true value of a parameter; Controlling the probe of the measuring system to be transferred from the second position to the first position; Moving the probe to each of the standard parts to be tested in the first position, performing measurement processing on the current standard part to be tested each time the probe is moved to the standard part to be tested, obtaining parameter measurement values output by the measurement system, until all the standard parts to be tested are measured; the measurement processing is a destructive test, and the parameter measurement values are obtained by performing destructive testing on the standard parts to be tested; Based on the true value of the parameter and the measured value of the parameter, a measurement system analysis result is obtained; the measurement system analysis result includes a measuring tool repeatability capability index Cg and a measuring tool accuracy capability index Cgk, as well as a measurement system evaluation result generated by comparing Cg and Cgk with threshold values respectively.

2. The method according to claim 1, characterized in that The performing of measurement processing on the current standard component to be measured to obtain the parameter measurement value output by the measurement system includes: The measurement system is used to perform a set number of performance measurement processes on the current standard component to be measured using different test parameters to obtain the parameter measurement values output by the measurement system.

3. The method according to claim 1, characterized in that The step of transferring the probe for controlling the measurement system from the second position to the first position includes: Controlling the probe to a fixed measurement position in the second position to perform measurement processing on each of the batteries to be tested that are transferred; When a set event is triggered, the measurement position of the probe is controlled to transfer from the second position to the first position.

4. The method according to claim 3, characterized in that After obtaining the measurement system analysis result based on the true value of the parameter and the measured value of the parameter, the method further includes: Controlling the probe to move from the first position to the second position; Return to the step of controlling the probe to be in the fixed measurement position of the second bin and performing measurement processing on each of the batteries to be tested that are transferred.

5. The method according to claim 1, wherein The parameter measurement values are written into a table and stored in a set storage path; the measurement system analysis results are obtained based on the parameter true values and the parameter measurement values, including: Capture the measurement data value of the set field from the table stored in the set storage path, and upload the measurement data value to the quality information system according to the data item corresponding to the set field; The measurement system analysis result generated by the quality information system after analyzing the measurement data value according to the data item based on the parameter true value is obtained.

6. The method according to claim 5, characterized in that The battery to be tested that the standard component to be tested imitates is a set model; The data item is determined based on the set model of the battery to be tested; the measurement system analysis result is generated based on an analysis template corresponding to the set model of the battery to be tested, and the analysis template contains specific analysis content of the battery to be tested of the set model.

7. The method according to claim 1, characterized in that The method further comprises: Obtaining battery testing requirements, wherein the battery testing requirements include a battery model; Based on the battery test requirements, determining test items matching the battery model and target test parameters associated with the test items; the target test parameters are used by the measurement system to perform measurement processing; Displaying an adjustment interface for the target test parameters; The target test parameters adjusted by the user based on the adjustment interface are obtained.

8. A battery measurement system analysis device, characterized in that: The device comprises: A setting module is used to set a standard component to be tested in the first position, wherein the standard component to be tested is designed based on the battery to be tested in the second position; each standard component to be tested corresponds to a true value of a parameter; a measurement module configured to control the probe of the measurement system to be transferred from the second position to the first position; move the probe to each of the standard parts to be measured in the first position, and perform a measurement process on the current standard part to be measured each time the probe is moved to the standard part to be measured, thereby obtaining parameter measurement values output by the measurement system, until all the standard parts to be measured are measured; the measurement process is a destructive test, and the parameter measurement values are obtained by performing a destructive test on the standard parts to be measured; A generation module is used to obtain a measurement system analysis result based on the true value of the parameter and the measured value of the parameter; the measurement system analysis result includes a measuring tool repeatability capability index Cg and a measuring tool accuracy capability index Cgk, as well as a measurement system evaluation result generated by comparing Cg and Cgk with threshold values respectively.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: The processor is configured to call computer instructions so that the computer device implements the steps of the method according to any one of claims 1 to 7 when executing the computer program.

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

11. A computer program product, characterized in that A computer-readable storage medium comprising a computer-readable code or carrying a computer-readable code, wherein when the computer-readable code is executed in an electronic device, a processor in the electronic device calls the computer-readable code to cause the electronic device to execute the steps of the method according to any one of claims 1 to 7.

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