Intelligent analysis system for performance test of household appliance control panel

Abstract

The invention relates to the field of control panel performance test and analysis, and particularly discloses a household appliance control panel performance test intelligent analysis system which sets various working environments of a control panel based on a single variable principle according to environment variables of temperature, relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt mist concentration and dust concentration; setting each group of contrast working environment, and respectively placing the control panel in the contrast working environment for power-on operation benchmark test; comparing the performance parameters of the control panel test under various working environments with the contrast performance parameters and the performance parameter standard, judging the qualification of the control panel, and counting the reject ratio of the electrical performance, the function and the reliability of the control panel under various working environments; the sensitivity of the control panel to various working environments and the influence degree of the various working environments to various indexes are evaluated, so that an enterprise can be guided to preferentially improve the adaptability to a high-sensitivity environment, and the overall reliability of a product is improved.

Description

Technical Field

[0001] The invention relates to the field of control panel performance testing and analysis, and in particular to an intelligent analysis system for performance testing of a household appliance control panel. Background Art

[0002] As the core control unit of modern smart home appliances, the home appliance control board is an embedded electronic device that integrates a microprocessor, a sensor interface, a power drive module, and a communication unit. It uses preset program logic to achieve real-time monitoring and precise control of the working status of home appliances. Typical applications include air conditioning temperature control systems, washing machine timing controllers, microwave oven power adjustment modules, etc. The performance of the control board directly determines the functional reliability, energy efficiency level, and safety factor of home appliances. Its key indicators such as hardware circuit stability, software algorithm robustness, and anti-interference ability have a decisive impact on the end-user experience.

[0003] However, the existing household appliance control panel performance testing methods still have some limitations and shortcomings in practical applications.

[0004] For example, Chinese patent CN114764109A discloses an electrical performance test method, device, equipment and system. The method performs the following steps through a test terminal: sending a test instruction to the electrical appliance to be tested to trigger it to execute a preset function program; obtaining performance parameter data of the electrical appliance in real time when it is running; comparing and analyzing the parameters with preset thresholds and generating a test report. This solution replaces manual testing methods with automated processes, effectively reducing labor costs and operating errors, significantly improving test efficiency and result accuracy, and meeting the quality control requirements of large-scale production. The system correspondingly includes an instruction issuing module, a data acquisition module and an analysis and processing module to achieve the above functions.

[0005] For example, the Chinese patent with authorization announcement number CN117075018B discloses a BMS control panel performance test intelligent analysis management system, which is characterized by including: a sample division module, an electrical performance test module, an electrical performance analysis module, a working performance test module, a working performance analysis module, a performance analysis module and a test result feedback terminal; through overcurrent, overvoltage and working performance tests, a performance compliance coefficient is generated, and a multi-dimensional analysis is performed; combined with an in-depth analysis of the display times, values ​​and response time accuracy in the discharge test, the feedback is fed back to the test terminal to achieve the improvement of the timeliness and effect of production plan optimization, while ensuring the display accuracy and response timeliness.

[0006] The above patent adopts a single performance test strategy for the performance test of the control board, that is, detecting various performance indicators of the control board and comparing them with the set values ​​or standard values, and then conducting performance evaluation and judging whether the control board is qualified. It does not take into account the differences in the performance of the control board under different working environments and the performance of the control board under different working environments based on the single variable principle, and analyzes the sensitivity of the control board to the working environment. Therefore, it cannot provide reference opinions for manufacturers to optimize the design for performance shortcomings. Summary of the invention

[0007] In view of the above problems, the present invention proposes an intelligent analysis system for performance testing of a household appliance control panel, which realizes the function of testing and analyzing the performance of the control panel.

[0008] The technical solution adopted by the present invention to solve its technical problem is: the present invention provides an intelligent analysis system for performance testing of household appliance control panels, including: a working environment simulation module: according to environmental variables such as temperature, relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration, various working environments of the control panel are set based on the single variable principle.

[0009] Control group setting module: set the control working environment for each group and place the control board in it to power on and run the benchmark test, and collect the control performance parameters of each group of control boards.

[0010] Environmental adaptability test module: Tests the performance parameters of the control board under various working environments, and compares them with the control performance parameters and performance parameter standards to obtain the scores of the electrical performance indicators, functional indicators, and reliability indicators of the control board under various working environments.

[0011] Performance qualification evaluation module: Based on the scoring results of the control board, the qualification of the control board is determined, and the failure rate of the electrical performance, function and reliability of the control board under various working environments is counted.

[0012] Environmental sensitivity analysis module: evaluates the control panel's sensitivity ranking to the working environment and the ranking of the degree of influence of the working environment on the indicators, and obtains the environmental sensitivity analysis results of the control panel.

[0013] Database: Stores the security range of environment variables and control board performance parameter standards.

[0014] Compared with the prior art, the intelligent analysis system for testing the performance of household appliance control panels described in the present invention has the following beneficial effects: 1. Comprehensive coverage of multi-environmental variable tests to improve test accuracy: The present invention simulates multiple environmental variables such as temperature, humidity, voltage fluctuations, mechanical vibrations, salt spray concentration, dust concentration, and other environmental variables, and tests the adaptability of the control panel one by one based on the single variable principle. It can comprehensively cover the complex environmental conditions that may be encountered in actual use, avoid test errors caused by multi-variable interference, and significantly improve the accuracy and reliability of the test results.

[0015] 2. Benchmark control and standardized evaluation to ensure comparability of results: The present invention provides a unified benchmark for performance testing in different environments by setting a reference working environment and running benchmark tests. It combines international / industry standard parameters to achieve standardized comparison of test results, ensure the objectivity and comparability of the evaluation process, and provide a scientific basis for quality control.

[0016] 3. Intelligent analysis of environmental sensitivity to optimize product design direction: This invention ranks the degree of impact of different environments on the performance of the control panel, clarifies the types of sensitive environments and key weak indicators, and can guide companies to prioritize improving adaptability to highly sensitive environments and take corresponding measures, thereby improving the overall reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 This is a system module connection diagram of the present invention.

[0019] Figure 2 The present invention is a flow chart of comprehensive analysis of the performance test of the household appliance control panel.

[0020] Figure 3 This is a workflow diagram of the environmental adaptability test module of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 and Figure 2 As shown, the present invention provides an intelligent analysis system for performance testing of household appliance control panels, including a working environment simulation module, a control group setting module, an environmental adaptability testing module, a performance qualification evaluation module, an environmental sensitivity analysis module, and a database.

[0023] The control group setting module is connected to the working environment simulation module and the environmental adaptability test module respectively, the performance qualification assessment module is connected to the environmental adaptability test module and the environmental sensitivity analysis module respectively, and the database is connected to the working environment simulation module and the environmental adaptability test module respectively.

[0024] The working environment simulation module sets various working environments of the control panel based on the single variable principle according to environmental variables such as temperature, relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration.

[0025] Furthermore, the specific working process of the working environment simulation module is: taking temperature, relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration as environmental variables of the working environment of the control panel.

[0026] It should be noted that temperature, humidity, voltage fluctuations, mechanical vibrations, salt spray, and dust are common environmental factors during the use of household appliances.

[0027] Extracts the security scope of environment variables stored in the database.

[0028] Each environmental variable is regarded as the only variable that changes, and other environmental variables except the only variable that changes are maintained constantly within the corresponding safety range. The test gear of the only variable that changes is set according to the preset rules, and then the only variable that changes is adjusted to place the control board under different gears for testing, so as to obtain the working environment of the control board when each environmental variable is regarded as the only variable. These are recorded as various working environments and assigned corresponding labels.

[0029] In a specific embodiment, the values ​​of other environmental variables except the only changed variable are set to the median of their safe ranges.

[0030] It should be noted that the labels corresponding to various working environments include temperature labels, relative humidity labels, voltage fluctuation ratio labels, mechanical vibration frequency labels, salt spray concentration labels, and dust concentration labels.

[0031] As a preferred solution, various working environments of the control board are set based on the single variable principle. The specific process is: take temperature as the changing environmental variable, and maintain all environmental variables except temperature constantly within the corresponding safety range, set high temperature, low temperature and temperature cycle according to preset rules, wherein the temperature cycle includes the upper temperature limit, the lower temperature limit, and the interval duration and number of switching between the upper and lower temperature limits, and then regulate the temperature so that the control board is placed in high temperature, low temperature and temperature cycle in turn, obtain the first working environment of the control board, and assign a temperature label.

[0032] Relative humidity is used as a changing environmental variable, and all environmental variables except relative humidity are maintained constant within the corresponding safety range. The relative humidity of each test is set according to the preset rules, and then the relative humidity is regulated so that the control board is placed in each test relative humidity setting time in turn, and the second working environment of the control board is obtained, and a relative humidity label is assigned.

[0033] The voltage fluctuation ratio is taken as a changing environmental variable, and all environmental variables except the voltage fluctuation ratio are maintained constant within the corresponding safety range. Each test voltage fluctuation ratio is set according to the preset rules, and then the voltage fluctuation ratio is regulated so that the control board is placed in each test voltage fluctuation ratio set time in turn, and the third working environment of the control board is obtained, and the voltage fluctuation ratio label is assigned.

[0034] The mechanical vibration frequency is taken as the changing environmental variable, and all environmental variables except the mechanical vibration frequency are maintained constant within the corresponding safety range. The test mechanical vibration frequency is set according to the preset rules, and then the mechanical vibration frequency is regulated so that the control board is placed in each test mechanical vibration frequency set time in turn, and the fourth working environment of the control board is obtained, and a mechanical vibration frequency label is assigned.

[0035] The salt spray concentration is taken as a changing environmental variable, and all environmental variables except the salt spray concentration are maintained constant within the corresponding safety range. The test salt spray concentration is set according to the preset rules, and then the salt spray concentration is regulated so that the control board is placed in each test salt spray concentration set time in turn, to obtain the fifth working environment of the control board and assign a salt spray concentration label.

[0036] The dust concentration is taken as a variable environmental variable, and all environmental variables except the dust concentration are kept constant within the corresponding safety range. The test dust concentration is set according to the preset rules, and then the dust concentration is regulated so that the control panel is placed in each test dust concentration setting time in turn, and the sixth working environment of the control panel is obtained, and a dust concentration label is assigned.

[0037] In a specific embodiment, in the first working environment of the control panel, the high temperature is set to +45°C and the low temperature is set to -10°C. In the temperature cycle, the upper temperature limit is +40°C, the lower temperature limit is -10°C, the interval between switching between the upper and lower temperature limits is 3.5h, and the number of switching times is 10 times.

[0038] As a preferred solution, the first working environment of the control panel refers to the control panel successively experiencing high temperature, low temperature and temperature cycle. The temperature cycle refers to the temperature cycling within a temperature range consisting of a lower temperature limit and an upper temperature limit.

[0039] As a preferred solution, the control panel is placed in each test relative humidity in order from low to high relative humidity, and the time maintained at each test relative humidity is the same, which is the set time.

[0040] In a specific embodiment, the relative humidity of each test in the second working environment of the control panel is set to 50%, 60%, 70%, and 80%, respectively, and the duration of maintaining each relative humidity of the test is 2 hours.

[0041] As a preferred solution, the control board is placed in each test voltage fluctuation ratio in order from small to large, and the time maintained at each test voltage fluctuation ratio is the same, which is the set time length.

[0042] In a specific embodiment, in the third working environment of the control board, each test voltage fluctuation ratio is set to -15%, -10%, +10%, and +15% of the nominal voltage, respectively, and the duration of maintaining each test voltage fluctuation ratio is 30 minutes.

[0043] As a preferred solution, the control board is placed at each test mechanical vibration frequency in sequence from low to high mechanical vibration frequencies, and the time maintained at each test mechanical vibration frequency is the same, which is the set time length.

[0044] In a specific embodiment, in the fourth working environment of the control panel, the test mechanical vibration frequencies are set to 60 Hz, 80 Hz, 100 Hz, 150 Hz, and 200 Hz, respectively, and the duration at each test mechanical vibration frequency is 10 minutes.

[0045] As a preferred solution, the control panel is placed in each test salt spray concentration in order from low to high salt spray concentration, and the time maintained at each test salt spray concentration is the same, which is the set time length.

[0046] In a specific embodiment, the fifth working environment of the control panel sets the test salt spray concentrations to 0.15 mg / m³, 0.20 mg / m³, 0.25 mg / m³, and 0.30 mg / m³, respectively, and the duration of maintenance at each test salt spray concentration is 24 hours.

[0047] As a preferred solution, the control panel is placed in each test dust concentration in order from low to high dust concentration, and the time maintained at each test dust concentration is the same, which is the set time length.

[0048] In a specific embodiment, the sixth working environment of the control panel sets the test dust concentrations to 20 mg / m³, 30 mg / m³, 40 mg / m³, and 50 mg / m³, respectively, and the duration of maintenance at each test dust concentration is 2 hours.

[0049] It should be noted that the present invention simulates multiple environmental variables such as temperature, humidity, voltage fluctuation, mechanical vibration, salt spray concentration, dust concentration, and tests the adaptability of the control board one by one based on the single variable principle. It can comprehensively cover the complex environmental conditions that may be encountered in actual use, avoid test errors caused by multivariate interference, and significantly improve the accuracy and reliability of the test results.

[0050] The control group setting module sets each group of control working environments and respectively places the control panels therein to power on and run benchmark tests, and collects each group of control performance parameters of the control panels.

[0051] Furthermore, the specific working process of the control group setting module is: according to the safety range of each environmental variable, each value is selected from the safety range of each environmental variable in an order from low to high according to the set rules to obtain each group of control working environments of the control panel.

[0052] It should be noted that relevant tests should be carried out on the control panel after it is installed.

[0053] In a specific embodiment, when the control panel is in stable operation, the corresponding temperature safety range is 0°C~30°C, the relative humidity safety range is 20%~40%, the voltage fluctuation ratio safety range is ±10% nominal voltage, the mechanical vibration frequency safety range is 5Hz~50Hz, the salt spray concentration safety range is ≤0.1mg / m³, and the dust concentration safety range is ≤10mg / m³. According to the set rules, the control working environment of each group of the control panel is obtained, and the specific reference is Table 1.

[0054] Table 1. Several groups of control panel working environments

[0055]

[0056] It should be noted that the above-mentioned method of setting each group of control working environments of the control panel uses a moderate gradient to ensure that the values ​​of the environmental variables are evenly distributed, which can systematically cover the entire safety range and reduce accidental errors. Taking values ​​in sequence from low to high helps to observe linear changes or nonlinear mutations of the control panel.

[0057] Samples are taken out from the control boards of the same production batch and powered on to perform benchmark tests under each group of control working environments to obtain their performance parameters under each group of control working environments. These performance parameters are recorded as each group of control performance parameters of the control boards, which include electrical performance parameters, functional parameters, and reliability parameters.

[0058] The environmental adaptability test module tests the performance parameters of the control board under various working environments, and compares them with the control performance parameters and performance parameter standards to obtain the scores of the electrical performance indicators, functional indicators, and reliability indicators of the control board under various working environments.

[0059] Further, see Figure 3 As shown, the specific working process of the environmental adaptability test module includes: extracting a set number of samples from the control boards of the same production batch to test their electrical performance parameters, functional parameters, and reliability parameters in a working environment with a temperature label, wherein the electrical performance parameters include voltage, current, insulation resistance, power consumption, and efficiency; the functional parameters include key response time, screen display quality, control instruction response time, communication transmission speed, and sensor input signal response time; and the reliability parameters include the number of failures such as overheating, freezing, restarting, false triggering, short circuit, leakage, sensor failure, and communication interruption.

[0060] As a preferred solution, the screen display quality is evaluated by integrating the three indicators of brightness, contrast and completeness of the screen display of the integrated control panel.

[0061] Furthermore, the specific working process of the environmental adaptability test module also includes: screening various groups of control electrical performance parameters of the control board from various groups of control performance parameters of the control board.

[0062] The electrical performance parameters of each sample in the working environment with a temperature label are compared with the electrical performance parameters of each group of controls, and the deviation of each sub-item of the electrical performance parameters of each sample in the working environment with a temperature label relative to each control group is obtained, and the mode of the deviation of the electrical performance parameter sub-item relative to each control group is used as the deviation of the electrical performance parameter sub-item relative to the control group, and the deviation of each sub-item of the electrical performance parameter of each sample relative to the control group is further obtained. The deviation is input into a preset electrical performance parameter deviation-first evaluation coefficient relationship model, and the first electrical performance evaluation coefficient of each sample in the corresponding temperature environment is output. The relationship model includes a quantitative mapping relationship between the electrical performance parameter deviation and the evaluation coefficient.

[0063] As a preferred solution, the smaller the deviation of each sub-item of the electrical performance parameter relative to the control group, the larger the first evaluation coefficient of the electrical performance.

[0064] It should be noted that the electrical performance of the control board in a control working environment will be better than the electrical performance in an environment with a temperature label. In this scenario, the closer the electrical performance parameters of the control board sample in the working environment with a temperature label are to the electrical performance parameters of the control board in the control working environment, the better the electrical performance of the control board sample in the working environment with a temperature label.

[0065] Furthermore, the specific working process of the environmental adaptability test module also includes: screening standard values ​​of electrical performance parameters from control panel performance parameter standards stored in a database.

[0066] The electrical performance parameters of each sample under the working environment with a temperature label are compared with the corresponding standard values ​​to obtain the deviation of each sub-item of the electrical performance parameters of each sample under the corresponding temperature environment relative to the performance parameter standard. The deviation is input into the preset electrical performance parameter deviation-second evaluation coefficient relationship model to output the second evaluation coefficient of the electrical performance of each sample under the corresponding temperature environment.

[0067] The first evaluation coefficient and the second evaluation coefficient of the electrical performance of each sample in the working environment with a temperature label are comprehensively calculated according to preset rules to generate an electrical performance evaluation index for each sample in the temperature environment.

[0068] As a preferred solution, the smaller the deviation of each sub-item of the electrical performance parameter relative to the performance parameter standard, the larger the second evaluation coefficient of the electrical performance.

[0069] It should be noted that the electrical performance of the control board in an operating environment with a temperature label will be lower than the electrical performance standard of the control board. In this scenario, the closer the electrical performance parameters of the control board sample in the operating environment with a temperature label are to the standard values, the better the electrical performance of the control board sample in the operating environment with a temperature label.

[0070] In a specific embodiment, a weighted average value is calculated for the first evaluation coefficient and the second evaluation coefficient of the electrical performance of each sample in the working environment with a temperature label, and an electrical performance evaluation index of each sample in the working environment with a temperature label is obtained. The weights of the first evaluation coefficient and the second evaluation coefficient of the electrical performance are set values, and the cumulative sum is 1.

[0071] Furthermore, the specific working process of the environmental adaptability test module also includes: setting a relationship comparison table between the electrical performance evaluation index range and the electrical performance index score, and matching the electrical performance index score of each sample under the temperature environment according to the electrical performance evaluation index of each sample under the working environment with a temperature label.

[0072] Similarly, obtain the scores of the functional indicators and reliability indicators of each sample under the temperature environment.

[0073] As a preferred solution, the method for obtaining the functional index and reliability index scores of each sample in the working environment with a temperature label is the same as the method for obtaining the electrical performance index scores of each sample in the working environment with a temperature label.

[0074] Furthermore, the specific working process of the environmental adaptability test module also includes: extracting a set number of samples from the control boards of the same production batch to test the electrical performance parameters, functional parameters, and reliability parameters of the samples in a working environment with labels of relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration, and analyzing the scores of the electrical performance indicators, functional indicators, and reliability indicators of each sample under various working environments.

[0075] As a preferred solution, the method for analyzing the electrical performance indicators, functional indicators, and reliability indicators of each sample in a working environment with relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration labels is the same as the method for analyzing the electrical performance indicators, functional indicators, and reliability indicators of each sample in a working environment with temperature labels.

[0076] As a preferred solution, the number of control panel samples tested in various working environments may be the same or different.

[0077] The performance qualification evaluation module makes qualification judgment on the control board based on the scoring result of the control board, and counts the failure rate of the electrical performance, function and reliability of the control board under various working environments.

[0078] Furthermore, the specific working process of the performance qualification evaluation module is: setting the scoring thresholds of the electrical performance index, the functional index and the reliability index.

[0079] The scores of the electrical performance indicators, functional indicators, and reliability indicators of each sample in the working environment with a temperature label are compared with the corresponding scoring thresholds. If the scores of the electrical performance indicators, functional indicators, and reliability indicators of a sample in the temperature environment are greater than or equal to the corresponding scoring thresholds, the sample is qualified; otherwise, the sample is unqualified and the non-compliant indicator items are obtained.

[0080] The ratio of the number of unqualified samples that do not meet the electrical performance indicators, functional indicators, and reliability indicators under the temperature environment to the total number of samples tested under the temperature environment is counted to obtain the unqualified rate of the electrical performance, function, and reliability of the control board under the temperature environment.

[0081] Similarly, obtain the failure rate of the electrical performance, function, and reliability of the control board under various other working environments.

[0082] It should be noted that the present invention provides a unified benchmark for performance tests in different environments by setting a reference working environment and running benchmark tests. It also combines international / industry standard parameters to achieve standardized comparison of test results, thereby ensuring the objectivity and comparability of the evaluation process and providing a scientific basis for quality control.

[0083] The environmental sensitivity analysis module evaluates the sensitivity ranking of the control panel to the working environment and the ranking of the degree of influence of the working environment on the index, and obtains the environmental sensitivity analysis result of the control panel.

[0084] Furthermore, the specific working process of the environmental sensitivity analysis module is as follows: S1: sorting the failure rates of electrical performance, function and reliability of the control board in the working environment with the temperature label from high to low to obtain the ranking of the influence of the temperature environment on each indicator.

[0085] Similarly, the ranking of the impact of various other working environments on each indicator is obtained.

[0086] S2: Accumulate the failure rates of the electrical performance, function, and reliability of the control board in the working environment with the temperature label to obtain the comprehensive failure rate of the control board in the temperature environment.

[0087] Similarly, the comprehensive failure rate of the control panel under various other working environments is obtained.

[0088] Sort various working environments from high to low according to the comprehensive failure rate of the control board in that environment, and get the ranking of the sensitivity of the control board to various working environments.

[0089] It should be noted that the present invention can guide enterprises to give priority to improving adaptability to highly sensitive environments and taking corresponding measures, thereby improving the overall reliability of the product by ranking the degree of impact of different environments on the performance of the control panel and clarifying the types of sensitive environments and key weak indicators.

[0090] The database stores the safety range of environmental variables and the control panel performance parameter standards.

[0091] It should be noted that the safety range of environment variables refers to the numerical range of the environment variables corresponding to the stable operation of the control board, which can be obtained by checking product manuals and technical documents, referring to similar product experience, environmental testing, etc.

[0092] It should be noted that the performance parameter standards of the control panel are set based on international standards and industry practices, and can be obtained from the product specifications of the control panel manufacturer.

[0093] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. An intelligent analysis system for performance testing of household appliance control panels, characterized in that: include: Working environment simulation module: according to the environmental variables of temperature, relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration, various working environments of the control panel are set based on the single variable principle; Control group setting module: set the control working environment of each group and put the control board in it to power on and run the benchmark test, and collect the control performance parameters of each group of control boards; Environmental adaptability test module: Test the performance parameters of the control board under various working environments, and compare them with the control performance parameters and performance parameter standards to obtain the scores of the electrical performance indicators, functional indicators, and reliability indicators of the control board under various working environments; Performance qualification evaluation module: Based on the scoring results of the control board, the qualification of the control board is determined, and the unqualified rate of the electrical performance, function and reliability of the control board under various working environments is counted; Environmental sensitivity analysis module: evaluates the control panel's sensitivity ranking to the working environment and the ranking of the degree of influence of the working environment on the indicators, and obtains the environmental sensitivity analysis results of the control panel; Database: Stores the security range of environment variables and control board performance parameter standards.

2. The intelligent analysis system for performance testing of household appliance control panels according to claim 1, characterized in that: The specific working process of the working environment simulation module is as follows: Temperature, relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration are used as environmental variables of the control panel working environment; Extract the security scope of environment variables stored in the database; Each environmental variable is regarded as the only variable that changes, and other environmental variables except the only variable that changes are maintained constantly within the corresponding safety range. The test gear of the only variable that changes is set according to the preset rules, and then the only variable that changes is adjusted to place the control board under different gears for testing, so as to obtain the working environment of the control board when each environmental variable is regarded as the only variable. These are recorded as various working environments and assigned corresponding labels.

3. The intelligent analysis system for performance testing of household appliance control panels according to claim 2, characterized in that: The specific working process of the control group setting module is as follows: According to the safety range of each environmental variable, each value is selected from the safety range of each environmental variable in the order from low to high according to the set rules, and each group of control working environments of the control panel is obtained; Samples are taken out from the control boards of the same production batch and powered on to perform benchmark tests under each group of control working environments to obtain their performance parameters under each group of control working environments. These performance parameters are recorded as each group of control performance parameters of the control boards, which include electrical performance parameters, functional parameters, and reliability parameters.

4. The intelligent analysis system for performance testing of household appliance control panels according to claim 3, characterized in that: The specific working process of the environmental adaptability test module includes: A set number of samples are taken from the control boards of the same production batch to test their electrical performance parameters, functional parameters, and reliability parameters in a working environment with a temperature label. The electrical performance parameters include voltage, current, insulation resistance, power consumption, and efficiency. The functional parameters include key response time, screen display quality, control command response time, communication transmission speed, and sensor input signal response time. The reliability parameters include the number of failures such as overheating, freezing, restarting, false triggering, short circuit, leakage, sensor failure, and communication interruption.

5. The intelligent analysis system for performance testing of household appliance control panels according to claim 4, characterized in that: The specific working process of the environmental adaptability test module also includes: Selecting various groups of control electrical performance parameters of the control board from various groups of control performance parameters of the control board; The electrical performance parameters of each sample in the working environment with a temperature label are compared with the electrical performance parameters of each group of controls, and the deviation of each sub-item of the electrical performance parameters of each sample in the working environment with a temperature label relative to each control group is obtained, and the mode of the deviation of the electrical performance parameter sub-item relative to each control group is used as the deviation of the electrical performance parameter sub-item relative to the control group, and the deviation of each sub-item of the electrical performance parameter of each sample relative to the control group is further obtained. The deviation is input into a preset electrical performance parameter deviation-first evaluation coefficient relationship model, and the first electrical performance evaluation coefficient of each sample in the corresponding temperature environment is output. The relationship model includes a quantitative mapping relationship between the electrical performance parameter deviation and the evaluation coefficient.

6. The intelligent analysis system for performance testing of household appliance control panels according to claim 5, characterized in that: The specific working process of the environmental adaptability test module also includes: Filter standard values ​​of electrical performance parameters from control panel performance parameter standards stored in a database; The electrical performance parameters of each sample in the working environment with the temperature label are compared with the corresponding standard values ​​to obtain the deviation of each sub-item of the electrical performance parameters of each sample in the corresponding temperature environment relative to the performance parameter standard, and the deviation is input into the preset electrical performance parameter deviation-second evaluation coefficient relationship model to output the electrical performance second evaluation coefficient of each sample in the corresponding temperature environment; The first evaluation coefficient and the second evaluation coefficient of the electrical performance of each sample in the working environment with a temperature label are comprehensively calculated according to preset rules to generate an electrical performance evaluation index for each sample in the temperature environment.

7. The intelligent analysis system for performance testing of household appliance control panels according to claim 6, characterized in that: The specific working process of the environmental adaptability test module also includes: A comparison table of the relationship between the electrical performance evaluation index range and the electrical performance index score is set, and the electrical performance index score of each sample under the working environment with a temperature label is matched to obtain the electrical performance index score of each sample under the temperature environment; Similarly, obtain the scores of the functional indicators and reliability indicators of each sample under the temperature environment.

8. The intelligent analysis system for performance testing of household appliance control panels according to claim 7, characterized in that: The specific working process of the environmental adaptability test module also includes: A set number of samples are taken from the control boards of the same production batch to test the electrical performance parameters, functional parameters, and reliability parameters of the samples in a working environment with labels for relative humidity, voltage fluctuation ratio, mechanical vibration frequency, salt spray concentration, and dust concentration, and the scores of the electrical performance indicators, functional indicators, and reliability indicators of each sample under various working environments are analyzed.

9. The intelligent analysis system for performance testing of household appliance control panels according to claim 2, characterized in that: The specific working process of the performance qualification assessment module is as follows: Set scoring thresholds for electrical performance indicators, functional indicators, and reliability indicators; Compare the scores of the electrical performance index, functional index, and reliability index of each sample in the working environment with the temperature label with the corresponding scoring thresholds. If the scores of the electrical performance index, functional index, and reliability index of a sample in the temperature environment are greater than or equal to the corresponding scoring thresholds, the sample is qualified. Otherwise, the sample is unqualified, and the unqualified index items are obtained; The ratio of the number of unqualified samples that do not meet the electrical performance index, functional index, and reliability index under the temperature environment to the total number of samples tested under the temperature environment is counted to obtain the unqualified rate of the electrical performance, function, and reliability of the control board under the temperature environment; Similarly, obtain the failure rate of the electrical performance, function, and reliability of the control board under various other working environments.

10. The intelligent analysis system for performance testing of household appliance control panels according to claim 2, characterized in that: The specific working process of the environmental sensitivity analysis module is as follows: S1: Sort the failure rates of the electrical performance, function, and reliability of the control board in the working environment with the temperature label from high to low, and obtain the ranking of the degree of influence of the temperature environment on each indicator; Similarly, we get the ranking of the impact of various other working environments on each indicator; S2: Accumulate the failure rates of electrical performance, function, and reliability of the control board in the working environment with the temperature label to obtain the comprehensive failure rate of the control board in the temperature environment; Similarly, the comprehensive failure rate of the control board under various other working environments is obtained; Sort various working environments from high to low according to the comprehensive failure rate of the control board in that environment, and get the ranking of the sensitivity of the control board to various working environments.

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