Battery measurement system analysis method, device and equipment and storage medium

Abstract

The invention is suitable for the technical field of measurement, and provides a battery measurement system analysis method, device and equipment and a storage medium, and the method comprises the steps: setting a to-be-measured standard part at a first cabin position, and enabling the to-be-measured standard part to be designed and obtained by imitating a to-be-measured battery at a second cabin position; each standard component to be tested corresponds to a parameter true value; performing measurement processing on the standard component to be measured at the first bin position through 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 truth value and the parameter measurement value.

Description

Technical Field

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

[0002] In the battery manufacturing process, high-potential (Hi-pot) testing of batteries is a key step to ensure the insulation performance and safety of batteries. In order to ensure the accuracy and stability of the test results in the measurement system, measurement system analysis (MSA) needs to be performed regularly.

[0003] Since Hi-pot testing is a high-voltage test, it is destructive to equipment or materials and difficult to repeat. Test data processing and analysis are complex, especially for destructive testing. It is impossible to accurately evaluate the consistency and accuracy of test results in the measurement system, making it difficult to obtain effective MSA results. Summary of the invention

[0004] The embodiments of the present application provide a battery measurement system analysis method, device, equipment and storage medium to solve the problem that in existing destructive tests, 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: Setting a standard part to be tested, wherein the standard part to be tested is designed based on the battery to be tested; each of the standard parts to be tested corresponds to a true value of a parameter; Performing measurement processing on the standard part to be measured by the measurement system to obtain parameter measurement values ​​output by the measurement system; Based on the true value of the parameter and the measured value of the parameter, a measurement system analysis result is obtained.

[0006] In the above process, when the measurement system is subjected to MSA processing, 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, so as to reduce the data interference of the real variation of the product on the variation of the measurement system in the destructive test, effectively obtain the real variation data of the measurement system in the execution of the measurement task, realize the independent evaluation of the repeatability of the measurement system itself, and ensure the effective analysis results of the repeatability analysis of the measurement system.

[0007] In some embodiments, the measuring system is used to perform measurement processing on the standard component to be measured to obtain the parameter measurement value output by the measuring system, including: The measurement system is used to perform a set number of performance measurement processes on each of the standard parts to be tested using different test parameters to obtain the parameter measurement values ​​output by the measurement system.

[0008] By automatically and repeatedly measuring the standard parts of the simulated battery to be tested and adopting an automated processing process, human 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.

[0009] In some embodiments, the step of setting a standard component to be tested includes: A standard component to be tested is arranged in the first position, and the standard component to be tested is designed based on the battery to be tested in the second position.

[0010] By dividing the warehouses and distinguishing the standard parts to be tested from the batteries to be tested in different warehouses, we can ensure the normal testing of the batteries by the measurement system 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.

[0011] In some embodiments, the measuring system is used to perform measurement processing on the standard component to be measured to obtain the parameter measurement value output by the measuring system, including: Controlling the probe of the measuring system to be transferred from the second position to the first position; The probe is moved to each of the standard parts to be tested in the first position, and each time the probe is moved to a standard part to be tested, the current standard part to be tested is measured to obtain the parameter measurement value output by the measurement system until the measurement of each standard part to be tested is completed.

[0012] 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 of manual operation and the possibility of errors, improves the overall measurement accuracy and reliability of the measurement system, improves the consistency and reliability of the measurement results of the measurement system, and makes the operation process more simplified and efficient. It can objectively and accurately evaluate the performance of the measurement system without manual intervention, and completes complex measurement system analysis in a short time, reducing time delays and cost increases caused by manual operations, thereby improving production efficiency.

[0013] In some embodiments, the step of controlling the probe of the measurement system to be transferred from the second position to the first position includes: Controlling the probe to be at a fixed measuring position in the second bin to perform measurement processing on each of the batteries to be tested that are transferred; When a setting event is triggered, the measuring position of the probe is controlled to be transferred from the second position to the first position.

[0014] The above process, through the application of automation technology, can significantly improve the testing efficiency in the battery production process and improve production efficiency. By accurately measuring and processing the battery parameters, potential quality problems can be effectively detected to ensure the safety and reliability of the final product, meet industry standards and customer requirements, and ensure product quality.

[0015] 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: 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.

[0016] In the above process, the probe is transferred between different positions to ensure that the performance of the measurement system meets the requirements, and the operation position is automatically transferred to achieve effective measurement and processing of the battery to be tested, ensure the test intelligence and test effectiveness of the measurement system, and improve production efficiency.

[0017] In some embodiments, the parameter measurement value is written into a table and then stored in a set storage path; the measurement system analysis result is obtained based on the parameter true value and the parameter measurement value, 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.

[0018] The data in different fields correspond to corresponding data items, enabling effective identification and acquisition of specific data.

[0019] 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 operating process, improving analysis efficiency, significantly improving test accuracy and production efficiency, and improving the quality control level of the production process.

[0020] In some embodiments, the measurement system analysis result includes a gage repeatability capability index Cg and a gage accuracy capability index Cgk, and a measurement system evaluation result generated by comparing Cg and Cgk with threshold values, respectively.

[0021] 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 deterioration of the product in destructive testing on the deterioration of the measurement system, ensure accurate evaluation of the performance of the measurement system in each test, improve the evaluation accuracy of the measurement system, and ensure the test accuracy and data reliability of the measurement system.

[0022] In some embodiments, 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.

[0023] 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 the specific analysis content, the appropriate analysis template 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.

[0024] In some embodiments, the method further comprises: Obtaining battery testing requirements, wherein the battery testing requirements include a battery model; Based on the battery test requirements, determine the test items matching the battery model and the target test parameters associated with the test items; the target test parameters are used for 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.

[0025] In the above steps, the system allows users to adjust test parameters, such as the number of measurements, measurement range, etc., through the software interface. By adjusting the parameter settings through the software, it can adapt to the testing requirements of batteries of different specifications and types. This enables the system to adapt to different test conditions and requirements, improves the versatility and scope of application of the system, and makes the design flexible.

[0026] A second aspect of an embodiment of the present application provides a battery measurement system analysis device, the device comprising: 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 of the standard parts to be tested corresponds to a true value of a parameter; A measuring module, used to perform measurement processing on the standard part to be measured through the measuring system to obtain a parameter measurement value output by the measuring system; 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.

[0027] 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.

[0028] 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.

[0029] 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 a computer-readable code. 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 perform the steps in the method described in the first aspect.

[0030] 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

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings: Figure 1 is a schematic diagram of a cross-type test in a repeatable measurement scenario in some embodiments of the present application; Figure 2 is a schematic diagram of nested testing in a destructive testing scenario in some embodiments of the present application; Figure 3 The process of the battery measurement system analysis method of some embodiments of the present application is Figure 1 ; Figure 4 The process of the battery measurement system analysis method of some embodiments of the present application is Figure 2 ; Figure 5 It is a table schematic diagram of some embodiments of the present application; Figure 6 The process of the battery measurement system analysis method of some embodiments of the present application is Figure 3 ; Figure 7 is a structural diagram of a battery measurement system analysis device in some embodiments of the present application; Figure 8 It is a structural diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] In the embodiment of the present application, the battery may be a battery apparatus, a battery cell assembly, a battery cell, etc.

[0038] The battery device may include one or more battery cell assemblies for providing voltage and capacity. In some embodiments, the battery device may be a battery pack, which includes a box and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the box.

[0039] The battery cell assembly may include a plurality of battery cells, and the battery cell assembly may be formed by arranging a plurality of battery cells, and the plurality of battery cells are connected in series, in parallel, or in mixed series through a busbar. In some embodiments, the battery cell assembly may be a battery module, and the battery module may be formed by arranging and fixing a plurality of battery cells to form an independent module.

[0040] 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 thereto. A battery cell can be cylindrical, flat, rectangular, or in other shapes.

[0041] 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.

[0042] The electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0043] Measurement system analysis is a statistical analysis method that uses statistical analysis to conduct statistical variation analysis and research on the various influencing factors that constitute the measurement system in order to obtain a conclusion on whether the measurement system is accurate and reliable. By analyzing the measurement system, MSA can determine the source of variation in the measurement results, including the impact of factors such as measurement equipment, operators, measurement methods, and environment on the measurement results, so as to take corresponding measures to improve the measurement system, ensure the quality of measurement data, and provide a reliable basis for product quality control and process improvement.

[0044] 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.

[0045] In the first category, each component will be repeatedly tested 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.

[0046] 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.

[0047] In this way, the measurement results of the measurement system can be statistically analyzed to realize the repeatability and accuracy of the measurement system and realize MSA processing. In the current MSA processing process, the transmission of measurement data and the production of reports require employees to manually test on-site, process data, and notify the site of MSA NG. The transmission of measurement data and the production of reports of the measurement system require employees to manually test on-site, transcribe, and process data. Manual operation is time-consuming and prone to human errors. Data processing and analysis are complicated. There is a lack of automatic data recording and analysis, and automation and real-time feedback cannot be achieved. It is impossible to accurately evaluate the repeatability of the measurement system, especially for destructive testing, and the quality of data and reports cannot be guaranteed.

[0048] 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.

[0049] Hi-pot testing can occur during the battery manufacturing process, for example, before the battery cell is cold-pressed during winding / pre-welded into the shell / before the first injection, the Hi-pot process is performed to detect the battery insulation performance and prevent the risk of missing short-circuited batteries.

[0050] In practice, a high voltage higher than the normal operating voltage (usually 2 times or more of the rated voltage) can be applied to the insulator for a certain period of time to observe whether breakdown occurs or leakage current exceeds the standard, thereby verifying whether its insulation strength meets safety standards.

[0051] Hi-pot test is a high voltage test. Repeated testing is destructive to the battery and the test cannot be repeated.

[0052] In destructive testing scenarios, the premise of measurement system analysis is that there are some samples / components / products that are very similar and will not change over time during the measurement period. If there is a high degree of similarity between products in the same batch, the products in the same batch can be regarded as the same sample. Based on this, for destructive testing, the implementation of MSA needs to adopt GRR (Gage Repeatability and Reproducibility) test evaluation to evaluate the reliability and stability of the measurement system.

[0053] However, the conditions of different batteries actually produced as test samples are not exactly the same, resulting in the measurement values ​​after the sample is tested based on the measurement system. The variation during MSA analysis includes the variation between samples (products) and the variation of the actual measurement system itself. MSA tends to only need to obtain the variation of the measurement system.

[0054] That is, in destructive testing, in nested GRR test evaluation, the total variation σ of the measured value output by the measurement system after measuring the sample Total Affected by two factors, one is the actual variation of the product σ Product , and 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.

[0055] Optionally, σ 2 Total =σ 2 Product +σ 2 MS。 σ 2 MS =σ 2 Reproducibility +σ 2 Repeatibility。

[0056] Due to the specificity of destructive testing, each sample can only be tested once in a destructive test, and multiple repeated measurements cannot be performed to evaluate GRR.

[0057] The repeatability in the GRR test evaluation includes the repeatability of the measurement system itself and the differences between different parts that are "considered to be the same part". The repeatability of the measurement system itself cannot be evaluated alone, and the repeatability of the measurement system cannot be accurately reflected. Therefore, the traditional GRR analysis method is not applicable under destructive testing.

[0058] In order to illustrate the technical solution described in this application, a specific embodiment is provided below for illustration.

[0059] Combination Figure 3 As shown, in some embodiments, a battery measurement system analysis method is proposed, including: Step 301, setting a standard component to be tested.

[0060] 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.

[0061] The true value of a parameter refers to the actual physical value of the object being measured (such as length, temperature, voltage, resistance, etc.).

[0062] 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 may be a resistance calibration value or the like.

[0063] 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 a 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.

[0064] Optionally, during the implementation process, when setting the standard parts to be tested, the measurement system can be controlled to unload and stop, and after the standard parts to be tested are set, the automatic MSA mode can be turned on, or the MSA mode can be turned on by clicking "Hi-pot One-key MSA" on the host computer.

[0065] Step 302: The measurement system performs measurement processing on the standard part to be measured to obtain parameter measurement values ​​output by the measurement system.

[0066] The measurement process is, for example, a Hi-pot test, or other destructive tests.

[0067] In practice, when measuring the standard part to be tested, the standard part to be tested can be repeatedly measured according to the set standard. In the repeated measurement process, the standard part to be tested of the simulated battery can be measured through the PLC (Programmable Logic Controller) to realize the automatic repeated measurement of the measurement system analysis data.

[0068] PLC is a device used for industrial automation control, which can control the movement and measurement process of the measuring probe according to the preset program. Through PLC control, automatic repeated measurement of standard resistance blocks can be achieved.

[0069] Step 303: Obtain measurement system analysis results based on the true values ​​of the parameters and the measured values ​​of the parameters.

[0070] 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.

[0071] Based on the comparison results, the consistency, accuracy, test repeatability, reproducibility, etc. of the test results of the measurement system are determined to reduce the data interference of the actual deterioration of the product in the destructive test on the measurement system deterioration, thereby generating the measurement system analysis results, realizing MSA for repeatability monitoring of the measurement system, and achieving the repeatability evaluation effect of the measurement system.

[0072] Optionally, the measurement system analysis results are presented in the form of, for example, a measurement system analysis report.

[0073] In the above process, when the measurement system is subjected to MSA processing, 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, so as to reduce the data interference of the real variation of the product on the variation of the measurement system in the destructive test, effectively obtain the real variation data of the measurement system in the execution of the measurement task, realize the independent evaluation of the repeatability of the measurement system itself, and ensure the effective analysis results of the repeatability analysis of the measurement system.

[0074] In some embodiments, step 302, performing measurement processing on the standard part to be measured by the measurement system to obtain the parameter measurement value output by the measurement system, includes: Through the measurement system, a set number of performance measurement processes are performed on each standard part to be tested using different test parameters to obtain parameter measurement values ​​output by the measurement system.

[0075] Optionally, different test parameters are used in various measurement processes of the same resistance standard.

[0076] During the test, the measuring probe can be controlled by PLC to repeatedly measure the standard parts according to the preset number of times. When the standard parts of the simulated battery are repeatedly measured according to the preset number of times, the parameters and results of each measurement are automatically recorded and stored, ensuring that a large amount of test data can be quickly processed and analyzed, and complex analysis tasks can be completed in a short time, ensuring the efficiency of data processing.

[0077] Optionally, the preset number of times is, for example, 25 times, 30 times, etc.

[0078] By automatically and repeatedly measuring the standard parts of the simulated battery to be tested and adopting an automated processing process, human 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.

[0079] In some embodiments, step 301 of setting a standard component to be tested includes: A standard component to be tested is arranged in the first position, and the standard component to be tested is designed based on the battery to be tested in the second position.

[0080] 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.

[0081] By dividing the warehouses and distinguishing the standard parts to be tested from the batteries to be tested in different warehouses, we can ensure the normal testing of the batteries by the measurement system 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.

[0082] In some embodiments, in combination 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: Step 401 : Control the probe of the measurement system to be transferred from the second position to the first position.

[0083] Step 402 , in the first position, the probe is moved to each standard part to be tested. Each time the probe is moved to a standard part to be tested, the current standard part to be tested is measured to obtain parameter measurement values ​​output by the measurement system until all standard parts to be tested are measured.

[0084] 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 a set number of times using different test parameters 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.

[0085] The probe is used to perform measurement processing on the standard part to be measured. This can be achieved through contact (such as plugging) or non-contact (such as magnetic field induction, communication connection, etc.) with the standard part to be measured.

[0086] The switching of probes between positions can be achieved through PLC. Through automated control and switching, manual intervention can be reduced and the efficiency and accuracy of measurement and evaluation in the measurement system can be improved.

[0087] 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.

[0088] 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.

[0089] 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 of manual operation and the possibility of errors, improves the overall measurement accuracy and reliability of the measurement system, improves the consistency and reliability of the measurement results of the measurement system, and makes the operation process more simplified and efficient. It can objectively and accurately evaluate the performance of the measurement system without manual intervention, and completes complex measurement system analysis in a short time, reducing time delays and cost increases caused by manual operations, thereby improving production efficiency.

[0090] Optionally, step 401 controls the probe of the measurement system to be transferred from the second position to the first position, including: The control probe is at a fixed measuring 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 measuring position is transferred from the second bin to the first bin.

[0091] The second position is a position for measuring the battery. The battery to be tested is transferred in the second position, and each time a battery is transferred, the control probe is inserted into the battery to perform measurement processing on the battery.

[0092] 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, etc.

[0093] Alternatively, the setting event may be receiving a measurement system analysis start instruction from an operator. Then, according to actual production requirements, the probe is switched to a measurement position, and measurement processing of standard parts is performed, effectively carrying out measurement system analysis and improving automation processing efficiency.

[0094] The above process, through the application of automation technology, can significantly improve the testing efficiency in the battery production process and improve production efficiency. By accurately measuring and processing the battery parameters, potential quality problems can be effectively detected to ensure the safety and reliability of the final product, meet industry standards and customer requirements, and ensure product quality.

[0095] 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, step 303 further includes: 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.

[0096] The control probe is transferred from the first position to the second position, which may be performed when the analysis result of the measurement system meets the requirements.

[0097] In the above process, the probe is transferred between different positions to ensure that the performance of the measurement system meets the requirements, and the operation position is automatically transferred to achieve effective measurement and processing of the battery to be tested, ensure the test intelligence and test effectiveness of the measurement system, and improve production efficiency.

[0098] In some embodiments, the parameter measurement values ​​are written into the table and then stored in a set storage path.

[0099] Correspondingly, step 303 obtains the measurement system analysis results based on the true value of the parameter and the measured value of the parameter, 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; obtain 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 true value of the parameter.

[0100] The setting field is the field where the parameter measurement value is written in the table. Or it is the target field in the field where the parameter measurement value is written in the table 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.

[0101] The data in different fields correspond to corresponding data items, enabling effective identification and acquisition of specific data.

[0102] In an alternative implementation, combining Figure 5 As shown, when the measurement system automatically repeats the test of the simulated battery standard parts for a set number of times, the test result data is written into the table in the specified format and automatically saved to the specified path.

[0103] Then, based on the specified path, data can be captured from the table in a set manner, such as capturing the required target data through specific software, and uploading the captured data to QIS (Quality Information System) for automatic data analysis to generate measurement system analysis results.

[0104] QIS is a software system for quality management that can automatically analyze and process measurement data and generate evaluation reports. The QIS system can generate evaluation reports based on preset templates, which can include data such as measurement conditions, environmental parameters, and measurement results.

[0105] 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 operating process, improving analysis efficiency, significantly improving test accuracy and production efficiency, and improving the quality control level of the production process.

[0106] Optionally, during the process of QIS calculating and generating the MSA report, if an abnormality is detected in the calculation result, an automatic alarm control machine will be issued to achieve automatic anti-mistake and effectively avoid human errors.

[0107] 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.

[0108] Among them, Cg (Capability Index for Gage Repeatability) is an indicator to measure the repeatability accuracy of the 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 (the same operator, the same equipment, and the same object to be measured).

[0109] Cgk (Capability Index for Gage Repeatability and Bias) is an indicator for measuring the accuracy of a measurement system. It takes into account both repeatability precision and bias (i.e., the systematic deviation of the measurement mean from the reference true value) and is used to evaluate the repeatability and accuracy of a measurement system. Cgk not only evaluates the consistency of the measurement results, but also further considers the accuracy of the measurement system, and evaluates the overall performance of the measurement system by combining repeatability and bias. The higher the Cgk value, the better the repeatability of the measurement system and the higher the accuracy.

[0110] During the implementation process, key parameters such as Cg and Cgk can be automatically calculated based on the set data items through the built-in algorithm, 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 conclusions can be obtained.

[0111] In this way, the sensitivity and stability of the measurement system can be analyzed, and the sensitivity and stability of the measurement system can be evaluated objectively and accurately in each test. The repeatability and accuracy of the measurement system can be evaluated, and the consistency and accuracy of each measurement of the measurement system itself can be ensured. No human intervention is required, which saves time and resources and improves the accuracy and efficiency of the evaluation.

[0112] 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 the two indicators Cg and Cgk, the performance of the measurement system is comprehensively evaluated, and its reliability and accuracy in practical applications are ensured. It can effectively adapt to destructive testing scenarios and carry out effective MSA processing.

[0113] 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 deterioration of the product in destructive testing on the deterioration of the measurement system, ensure accurate evaluation of the performance of the measurement system in each test, improve the evaluation accuracy of the measurement system, and ensure the test accuracy and data reliability of the measurement system.

[0114] 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.

[0115] 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 the specific analysis content, the appropriate analysis template 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.

[0116] Optionally, the measurement system is used to perform measurement processing on a set model of battery to be tested. The measurement data of the measurement system on batteries of different models can be analyzed, and parameter settings can be adjusted through software to adapt to battery testing requirements of different specifications and types, thereby improving the versatility and applicability of the system.

[0117] In some embodiments, in combination Figure 6 As shown, the method also includes: Step 601, obtaining battery test requirements.

[0118] Battery testing requirements may include test parameters, test functions, test methods, etc.

[0119] Optionally, the battery test requirement includes a battery model.

[0120] Step 602: Determine test items matching the battery model and target test parameters associated with the test items based on the battery test requirements.

[0121] The target test parameters are used by the measurement system to perform measurement processing.

[0122] Step 603: display an adjustment interface for target test parameters.

[0123] Step 604, obtaining the target test parameters adjusted by the user based on the adjustment interface.

[0124] In the above steps, the system allows users to adjust test parameters, such as the number of measurements, measurement range, etc., through the software interface. By adjusting the parameter settings through the software, it can adapt to the testing requirements of batteries of different specifications and types. This enables the system to adapt to different test conditions and requirements, improves the versatility and scope of application of the system, and makes the design flexible.

[0125] The above implementation process of the embodiment of the present application realizes the automatic repetitive measurement of standard parts by the measurement system, realizes the automatic capture and upload of measurement result data, and automatically performs data analysis after uploading the measurement structure data to the QIS system, generates MSA reports, effectively reduces the number of personnel required for testing, greatly shortens the processing cycle, and improves test accuracy and production efficiency. At the same time, in view of the non-repeatable characteristics of destructive testing, Cg and Cgk are used to evaluate the performance of the measurement system, avoiding the limitations of traditional GRR testing and significantly improving the quality control level of the production process.

[0126] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed 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 part of the steps or stages in other steps.

[0127] Based on the same inventive concept, the embodiment of the present application also provides a battery measurement system analysis device. The battery measurement system analysis device provided in the embodiment of the present application can implement each process of the embodiment of the above-mentioned battery measurement system analysis method, and can achieve the same technical effect. Therefore, the specific limitations in one or more battery measurement system analysis device embodiments provided below can refer to the limitations of the battery measurement system analysis method above. To avoid repetition, it will not be repeated here.

[0128] In one embodiment, Figure 7 As shown, a battery measurement system analysis device 700 is provided, comprising: 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; The measuring module 702 is used to perform measurement processing on the standard component to be measured by the measuring system to obtain the parameter measurement value output by the measuring system; The generating module 703 is used to obtain the measurement system analysis result based on the true value of the parameter and the measured value of the parameter.

[0129] In some embodiments, the measuring module 702 is specifically configured to: The measurement system is used to perform a set number of performance measurement processes on each of the standard parts to be tested using different test parameters to obtain the parameter measurement values ​​output by the measurement system.

[0130] In some embodiments, the setting module 701 is specifically used to: A standard component to be tested is arranged in the first position, and the standard component to be tested is designed based on the battery to be tested in the second position.

[0131] In some embodiments, the measurement module 702 is specifically configured to: Controlling the probe of the measuring system to be transferred from the second position to the first position; The probe is moved to each of the standard parts to be tested in the first position, and each time the probe is moved to a standard part to be tested, the current standard part to be tested is measured to obtain the parameter measurement value output by the measurement system until the measurement of each standard part to be tested is completed.

[0132] In some embodiments, the measurement module 702 is specifically configured to: Controlling the probe to be at a fixed measuring position in the second bin to perform measurement processing on each of the batteries to be tested that are transferred; When a setting event is triggered, the measuring position of the probe is controlled to be transferred from the second position to the first position.

[0133] In some embodiments, the device further comprises: The control module is used to control the probe to be transferred from the first bin to the second bin; and return to execute the step of controlling the probe to be in a fixed measurement position in the second bin to perform measurement processing on each of the batteries to be tested that are transferred.

[0134] In some embodiments, the parameter measurement value is written into the table and then stored in the set storage path; the generation module 703 is specifically used to: 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.

[0135] In some embodiments, the measurement system analysis result includes a gauge repeatability capability index Cg and a gauge accuracy capability index Cgk, and a measurement system evaluation result generated by comparing Cg and Cgk with threshold values, respectively.

[0136] 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 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.

[0137] In some embodiments, the device further comprises: Parameter adjustment module for: Obtaining battery testing requirements, wherein the battery testing requirements include a battery model; Based on the battery test requirements, determine the test items matching the battery model and the target test parameters associated with the test items; the target test parameters are used for 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.

[0138] Each module in the above-mentioned battery measurement system analysis device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0139] In one embodiment, Figure 8As 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.

[0140] The computer device 8 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The computer device 8 may include, but is not limited to, a processor 800 and a memory 801. Those skilled in the art will appreciate that Figure 8 It is only an example of the computer device 8 and does not constitute a limitation of the computer device 8. It 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.

[0141] 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, etc.

[0142] The memory 801 may be an internal storage unit of the computer device 8, such as a hard disk or memory of the computer device 8. The memory 801 may also be an external storage device of the computer device 8, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the computer device 8. Further, the memory 801 may also include both an internal storage unit and an external storage device of the computer device 8. The memory 801 is used to store the computer program and other programs and data required by the computer device. The memory 801 may also be used to temporarily store data that has been output or is to be output.

[0143] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be 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 in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in 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, which will not be repeated here.

[0144] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0145] Those of ordinary skill 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 to be beyond the scope of this application.

[0146] In the embodiments provided in the present 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 only a logical function division. There may be other division methods in actual implementation, 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.

[0147] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0148] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0149] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0150] 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.

[0151] The embodiments described above 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, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A battery measurement system analysis method, characterized in that: The method comprises: A standard part to be tested is arranged in the first position, wherein the standard part to be tested is designed based on the battery to be tested in the second position; each of the standard parts 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; In the first position, the probe is moved to each of the standard parts to be tested, and each time the probe is moved to a standard part to be tested, a measurement process is performed on the current standard part to be tested to obtain a parameter measurement value output by the measurement system, until the measurement of each of the standard parts to be tested is completed; Based on the true value of the parameter and the measured value of the parameter, a measurement system analysis result is obtained.

2. The method according to claim 1, characterized in that The performing measurement processing on the current standard part 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 tested using different test parameters to obtain the parameter measurement value output by the measurement system.

3. The method according to claim 1, characterized in that The step of transferring the probe of the measuring system from the second position to the first position comprises: Controlling the probe to be at a fixed measuring position in the second bin to perform measurement processing on each of the batteries to be tested that are transferred; When a setting event is triggered, the measuring position of the probe is controlled to be transferred 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, characterized in that The parameter measurement value is written into the table and then stored in the set storage path; the measurement system analysis result is obtained based on the parameter true value and the parameter measurement value, 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 measurement system analysis result includes a gauge repeatability capability index Cg and a gauge accuracy capability index Cgk, and a measurement system evaluation result generated by comparing Cg and Cgk with threshold values ​​respectively.

7. The method according to claim 5, characterized in that 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 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.

8. 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, determine the test items matching the battery model and the target test parameters associated with the test items; the target test parameters are used for 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.

9. A battery measurement system analysis device, characterized in that: The device comprises: A setting module is used to set a standard part to be tested in the first position, wherein the standard part to be tested is designed based on the battery to be tested in the second position; each of the standard parts to be tested corresponds to a true value of a parameter; The measuring module is used to control the probe of the measuring system to be transferred from the second position to the first position; the probe is moved to each of the standard parts to be measured in the first position, and each time the probe is moved to a standard part to be measured, the current standard part to be measured is measured to obtain the parameter measurement value output by the measuring system, until the measurement of each standard part to be measured is completed; 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.

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: The processor is used to call computer instructions so that the computer device implements the steps of the method according to any one of claims 1 to 8 when executing the computer program.

11. 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 8 are implemented.

12. A computer program product, characterized in that The invention comprises a computer-readable code, or a non-volatile computer-readable storage medium carrying the 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 so that the electronic device executes the steps of the method described in any one of claims 1 to 8.

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