Method and system for analyzing physical properties based on dishwasher standard sample

Abstract

The application discloses a kind of based on the physical performance analysis method and system of dishwasher standard sample, it is related to electric digital data processing technical field.The physical performance analysis method of the dishwasher standard sample, it includes the following steps: nozzle continuity evaluation;Fluid continuity evaluation;Main water pump continuity evaluation.The nozzle continuity evaluation of average nozzle data obtained by the present application is carried out to judge whether nozzle continuity evaluation is completed, if yes, then based on the result of fluid continuity evaluation whether fluid continuity evaluation is completed is judged, if yes, then based on the result of main water pump continuity evaluation whether the water spray continuity evaluation of dishwasher standard sample is completed is judged, reaches the effect of improving the water spray continuity evaluation accuracy of dishwasher standard sample in the process of hydraulic performance prediction, solves the problem of low water spray continuity evaluation accuracy of dishwasher standard sample in the process of hydraulic performance prediction in prior art.

Description

Technical Field

[0001] This invention relates to the field of electronic digital data processing technology, and in particular to a method and system for analyzing the physical properties of dishwasher standard samples. Background Technology

[0002] With the continuous advancement of dishwasher technology, more and more research and standardized testing methods are being proposed to evaluate the performance and efficiency of dishwashers. Standard sample physical performance analysis methods for dishwashers typically include multiple dimensions such as water flow rate, spray pressure, temperature, power consumption, and cleaning effect. These physical properties directly affect the dishwasher's working efficiency, energy saving effect, and cleaning quality. To ensure that dishwashers achieve the expected results in actual use, relevant standard samples are usually used to simulate their performance under different load conditions.

[0003] In existing technologies, a flow sensor is installed to monitor the water flow of the dishwasher in real time, ensuring that the main water pump provides an appropriate water flow throughout the washing process; a pressure sensor is used to measure the water pressure at the nozzle, ensuring that the spray pressure meets the design standards; a temperature sensor is used to monitor the water temperature in real time, ensuring that the heating element operates within a suitable temperature range; and a data acquisition system is used to collect data from various sensors, and analysis algorithms are used to process this data to obtain a comprehensive performance evaluation result for the dishwasher.

[0004] For example, the invention patent announcement CN118395689B discloses a three-dimensional parametric design method based on an intelligent dishwasher, which includes: acquiring dishwasher sensor data and dishwasher structural data and constructing a dishwasher sensor model; performing data fusion based on the dishwasher sensor data to obtain multimodal sensor data; performing distribution analysis based on the multimodal sensor data to obtain dish distribution data; acquiring dishwasher spray arm parameter data and performing path analysis to obtain optimal spray path data; performing distribution analysis on the dish distribution data to obtain dish grease distribution data; evaluating the angle of the dish grease distribution data to obtain optimal spray angle data; performing strategy analysis on the optimal spray path data and optimal spray angle data to obtain the optimal spray strategy; and parametricizing the dishwasher sensor model to obtain a dishwasher spray parametric model.

[0005] For example, patent application CN116401811A discloses a method for predicting the overall hydraulic performance of a sink-type dishwasher, which includes: performing unsteady numerical calculations on an open main water pump under static conditions of the volute to obtain its external characteristic curve; fitting the external characteristic curve of the open main water pump to obtain its speed adaptation coefficient A and axial velocity coefficient B; establishing a mapping relationship between a composite superimposed virtual impeller and a composite impeller, and simultaneously realizing the passive rotation of the volute spray arm based on the GMO model and the virtual impeller to obtain the passive rotation speed of the volute and the nozzle flow rate; setting the nozzle mass source with the nozzle flow rate and the passive rotation speed of the volute spray arm as boundary conditions, and simultaneously performing non-submerged rotating jet calculations based on the VOF method for multi-nozzle combinations.

[0006] However, in the process of implementing the inventive technical solution in the embodiments of this application, it was found that the above-mentioned technology has at least the following technical problems:

[0007] In existing technologies, the hydraulic prediction of dishwashers is usually based on fluid dynamics models, but its accuracy and reliability are often affected by multiple factors, such as the non-uniformity of water flow distribution, the influence of water quality on the fluid, and the influence of nozzles and water flow paths. Secondly, the hydraulic prediction of dishwashers is not only directly related to flow rate and pressure, but also involves various parameters of nozzles, fluid characteristics, and the main water pump itself. These factors work together to affect the accuracy of the hydraulic prediction results, resulting in the problem that the accuracy of water spray continuity assessment in the hydraulic performance prediction process of dishwasher standard samples is not high. Summary of the Invention

[0008] This application provides a physical performance analysis method and system based on dishwasher standard samples, which solves the problem of low accuracy in evaluating the water spray continuity of dishwasher standard samples during the hydraulic performance prediction process in the prior art, and improves the accuracy of evaluating the water spray continuity of dishwasher standard samples during the hydraulic performance prediction process.

[0009] This application provides a method for physical performance analysis based on dishwasher standard samples, including the following steps: Step 1, during the hydraulic performance analysis of the dishwasher standard samples, a nozzle continuity assessment is performed based on the acquired average nozzle data to determine whether the nozzle continuity assessment is completed; Step 2, if the nozzle continuity assessment is completed, a fluid continuity assessment is performed based on the acquired average fluid data to determine whether the fluid continuity assessment is completed; Step 3, if the fluid continuity assessment is completed, a main water pump continuity assessment is performed based on the acquired average main water pump data to determine whether the main water pump continuity assessment is completed.

[0010] Furthermore, the average nozzle data includes average inlet water pressure, average water jet angle, and average water flow diffusion angle. The specific steps for obtaining the average nozzle data include: Q1, obtaining the average inlet water pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period, comparing the obtained average inlet water pressure with the reference inlet water pressure in the database, if the obtained average inlet water pressure is not greater than the reference inlet water pressure in the database, then proceed to Q2; otherwise, send an inlet water pressure adjustment command. The inlet water pressure adjustment command indicates that the inlet water pressure of the nozzle at the corresponding nozzle evaluation time is adjusted by adjusting the inlet water valve. The inlet water pressure deviation represents the difference between the obtained average inlet water pressure and the reference inlet water pressure in the database; Q2, obtaining the average water jet angle and average water flow diffusion angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period.

[0011] Furthermore, the specific process for evaluating nozzle continuity based on the acquired average nozzle data is as follows: An inlet pressure evaluation coefficient is obtained by weighting the deviation between the acquired average inlet pressure and the reference inlet pressure in the database using an inlet pressure weighting factor; a water jet angle evaluation coefficient is obtained by weighting the deviation between the acquired average water jet angle and the reference water jet angle in the database using a water jet angle weighting factor; a water flow diffusion angle evaluation coefficient is obtained by weighting the deviation between the acquired average water flow diffusion angle and the reference water flow diffusion angle in the database using a water flow diffusion angle weighting factor; the acquired inlet pressure evaluation coefficient, water jet angle evaluation coefficient, and water flow diffusion angle evaluation coefficient are coupled to obtain a nozzle continuity evaluation value; the nozzle continuity evaluation value is used to quantify the influence of the average nozzle data on the nozzle continuity of the dishwasher standard sample; the specific process for determining whether the nozzle continuity evaluation is complete is as follows: if the acquired nozzle continuity evaluation value is not greater than the reference nozzle continuity evaluation value in the database, the nozzle continuity evaluation is complete; if the acquired nozzle continuity evaluation value is greater than the reference nozzle continuity evaluation value in the database, an alarm command is sent.

[0012] Furthermore, the average fluid data includes average fluid hardness, average fluid viscosity, and average fluid density. The specific steps for obtaining the average fluid data include: N1, obtaining the average fluid hardness of the fluid in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period, comparing the obtained average fluid hardness with the reference fluid hardness in the database, and if the obtained average fluid hardness is not greater than the reference fluid hardness in the database, then proceeding to N2; otherwise, sending a fluid hardness adjustment command. The fluid hardness adjustment command is used to prompt the preset personnel to inspect the pipe of the dishwasher standard sample. The fluid hardness deviation represents the difference between the obtained average fluid hardness and the reference fluid hardness in the database; N2, obtaining the average fluid viscosity and average fluid density of the fluid in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period.

[0013] Furthermore, the specific process for evaluating fluid continuity based on the acquired average fluid data is as follows: A fluid hardness evaluation coefficient is obtained by weighting the deviation between the acquired average fluid hardness and the reference fluid hardness in the database using a fluid hardness weighting factor; a fluid viscosity evaluation coefficient is obtained by weighting the deviation between the acquired average fluid viscosity and the reference fluid viscosity in the database using a fluid viscosity weighting factor; a fluid density evaluation coefficient is obtained by weighting the deviation between the acquired average fluid density and the reference fluid density in the database using a fluid density weighting factor; the acquired fluid hardness evaluation coefficient, fluid viscosity evaluation coefficient, and fluid density evaluation coefficient are coupled to obtain a fluid continuity evaluation value; the fluid continuity evaluation value is used to quantify the influence of the average fluid data on the fluid continuity of the dishwasher standard sample.

[0014] Furthermore, the average main water pump data includes the average impeller vibration amplitude, the average main water pump speed, and the average main water pump output power. The specific steps for obtaining the average main water pump data include: M1, obtaining the average impeller vibration amplitude of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period, comparing the obtained average impeller vibration amplitude with the reference impeller vibration amplitude in the database, and if the obtained average impeller vibration amplitude is not greater than the reference impeller vibration amplitude in the database, then M2 is executed; otherwise, an impeller vibration amplitude adjustment command is sent. The impeller vibration amplitude adjustment command is used to prompt the preset personnel to inspect the main water pump. The impeller vibration amplitude deviation represents the difference between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database; M2, obtaining the average main water pump speed and the average main water pump output power of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period.

[0015] Furthermore, the specific process for evaluating the continuity of the main water pump based on the acquired average main water pump data is as follows: An impeller vibration amplitude evaluation coefficient is obtained by weighting the deviation between the acquired average impeller vibration amplitude and the reference impeller vibration amplitude in the database using an impeller vibration amplitude weighting factor; a main water pump speed evaluation coefficient is obtained by weighting the deviation between the acquired average main water pump speed and the reference main water pump speed in the database using a main water pump speed weighting factor; a main water pump output power evaluation coefficient is obtained by weighting the deviation between the acquired average main water pump output power and the reference main water pump output power in the database using a main water pump output power weighting factor; the acquired impeller vibration amplitude evaluation coefficient, main water pump speed evaluation coefficient, and main water pump output power evaluation coefficient are coupled to obtain the main water pump continuity evaluation value; the main water pump continuity evaluation value is used to quantify the influence of the main water pump data on the continuity of the main water pump of the dishwasher standard sample.

[0016] This application provides a physical performance analysis system based on dishwasher standard samples, including: a nozzle continuity assessment module, a fluid continuity assessment module, and a main water pump continuity assessment module; wherein, the nozzle continuity assessment module is used to perform nozzle continuity assessment based on the acquired average nozzle data during the hydraulic performance analysis of the dishwasher standard samples to determine whether the nozzle continuity assessment is completed; the fluid continuity assessment module is used to perform fluid continuity assessment based on the acquired average fluid data if the nozzle continuity assessment is completed to determine whether the fluid continuity assessment is completed; the main water pump continuity assessment module is used to perform main water pump continuity assessment based on the acquired average main water pump data if the fluid continuity assessment is completed to determine whether the main water pump continuity assessment is completed.

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0018] 1. By acquiring average nozzle data, nozzle continuity assessment is performed to determine whether nozzle continuity assessment is complete. If so, fluid continuity assessment is performed based on the results of fluid continuity assessment. If so, main water pump continuity assessment is performed based on the results of main water pump continuity assessment to determine whether water spray continuity assessment of dishwasher standard samples is complete. This achieves more accurate assessment of nozzle, fluid, and main water pump continuity, thereby improving the accuracy of water spray continuity assessment of dishwasher standard samples in the hydraulic performance prediction process. This effectively solves the problem of low accuracy in water spray continuity assessment of dishwasher standard samples in the hydraulic performance prediction process in the existing technology.

[0019] 2. By weighting the deviation between the obtained average inlet pressure and the reference inlet pressure in the database using the inlet pressure weighting factor, an inlet pressure evaluation coefficient is obtained. At the same time, the obtained inlet pressure evaluation coefficient, water jet angle evaluation coefficient, and water flow diffusion angle evaluation coefficient are coupled to obtain the nozzle continuity evaluation value. This improves the accuracy of obtaining the nozzle continuity evaluation value, thereby enabling a more accurate evaluation of the nozzle continuity of the dishwasher standard sample.

[0020] 3. By weighting the deviation between the obtained average fluid hardness and the reference fluid hardness in the database using a fluid hardness weighting factor, a fluid hardness evaluation coefficient is obtained. At the same time, the obtained fluid hardness evaluation coefficient, fluid viscosity evaluation coefficient, and fluid density evaluation coefficient are coupled to obtain a fluid continuity evaluation value. This improves the accuracy of obtaining the fluid continuity evaluation value and thus enables a more accurate evaluation of the fluid continuity of the dishwasher standard sample.

[0021] 4. By weighting the deviation between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database using an impeller vibration amplitude weighting factor, an impeller vibration amplitude evaluation coefficient is obtained. At the same time, the obtained impeller vibration amplitude evaluation coefficient, main water pump speed evaluation coefficient, and main water pump output power evaluation coefficient are coupled to obtain the main water pump continuity evaluation value. This improves the accuracy of obtaining the main water pump continuity evaluation value, thereby enabling a more accurate evaluation of the main water pump continuity of the dishwasher standard sample. Attached Figure Description

[0022] Figure 1 A flowchart illustrating the physical performance analysis method based on dishwasher standard samples provided in this application embodiment;

[0023] Figure 2 A schematic diagram of the physical performance analysis system based on dishwasher standard samples provided in this application embodiment. Detailed Implementation

[0024] This application provides a method and system for physical performance analysis based on dishwasher standard samples, solving the problem of low accuracy in spray continuity assessment during hydraulic performance prediction of dishwasher standard samples in the prior art. By providing such a method and system, the nozzle continuity assessment is performed based on the acquired average nozzle data to obtain a nozzle continuity assessment value. Simultaneously, based on the acquired nozzle continuity assessment value, it is determined whether the nozzle continuity assessment is complete. If so, the fluid data during dishwasher operation is monitored in real time to obtain average fluid data. Then, fluid continuity analysis is performed based on the acquired average fluid data to determine whether the fluid continuity assessment is complete. If so, the main water pump data during dishwasher operation is monitored in real time to obtain average main water pump data. Finally, main water pump continuity analysis is performed based on the acquired average main water pump data to determine whether the main water pump continuity assessment is complete. This improves the accuracy of spray continuity assessment during hydraulic performance prediction of dishwasher standard samples.

[0025] The technical solution in this application embodiment aims to address the problem of low accuracy in evaluating the water spray continuity during the hydraulic performance prediction process of the aforementioned dishwasher standard sample. The overall approach is as follows:

[0026] The nozzle continuity assessment is performed using the acquired average nozzle data to determine whether the nozzle continuity assessment is complete. If so, the fluid continuity assessment is then performed based on the results of the fluid continuity assessment. If so, the water spray continuity assessment of the dishwasher standard sample is then performed based on the results of the main water pump continuity assessment. This improves the accuracy of water spray continuity assessment for the dishwasher standard sample during the hydraulic performance prediction process.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1 The diagram shows a flowchart of a physical performance analysis method based on a dishwasher standard sample provided in this application embodiment. The physical performance analysis method based on a dishwasher standard sample provided in this application embodiment includes the following steps: during the hydraulic performance analysis of the dishwasher standard sample, a nozzle continuity assessment is performed based on the acquired average nozzle data to determine whether the nozzle continuity assessment is completed; if the nozzle continuity assessment is completed, a fluid continuity assessment is performed based on the acquired average fluid data to determine whether the fluid continuity assessment is completed; if the fluid continuity assessment is completed, a main water pump continuity assessment is performed based on the acquired average main water pump data to determine whether the main water pump continuity assessment is completed.

[0029] In this embodiment, the water spray continuity assessment process for the dishwasher standard sample during hydraulic performance prediction covers three key aspects: nozzle continuity, fluid continuity, and main water pump continuity, forming a complete hydraulic performance assessment system. Compared with existing technologies, this example can more accurately predict and optimize hydraulic performance. By comprehensively assessing the water spray continuity of the nozzle, fluid, and main water pump, it helps to more accurately optimize the performance and coordination of each part of the dishwasher standard sample, avoiding a decline in overall hydraulic performance due to poor performance of a certain part. This optimization not only improves the hydraulic efficiency of the dishwasher standard sample but also enhances the accuracy of water spray continuity assessment during the hydraulic performance prediction process.

[0030] Furthermore, the average nozzle data includes average inlet water pressure, average water jet angle, and average water flow diffusion angle. The specific steps for obtaining the average nozzle data include: Q1, obtaining the average inlet water pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period, comparing the obtained average inlet water pressure with the reference inlet water pressure in the database, if the obtained average inlet water pressure is not greater than the reference inlet water pressure in the database, then proceed to Q2; otherwise, send an inlet water pressure adjustment command based on the obtained inlet water pressure deviation. Q2, obtaining the average water jet angle and average water flow diffusion angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period.

[0031] In this embodiment, the inlet water pressure is adjusted as follows: based on the reduction in inlet water pressure obtained by mapping the acquired inlet water pressure deviation to the database, the acquired reduction in inlet water pressure is simultaneously input to the controller of the inlet water valve to automatically reduce the inlet water pressure of the nozzle at the corresponding nozzle evaluation time. The inlet water pressure deviation represents the difference between the acquired average inlet water pressure and the reference inlet water pressure in the database. The average inlet water pressure is the sum of the inlet water pressures at each nozzle evaluation time during the nozzle evaluation period, and the inlet water pressure is monitored by a pressure sensor installed at the corresponding nozzle of the dishwasher standard sample. The average water jet angle is the sum of the water jet angles at each nozzle evaluation time during the nozzle evaluation period, and the water jet angle is monitored by an optical sensor installed at the corresponding nozzle of the dishwasher standard sample. The average water flow diffusion angle is the sum of the water flow diffusion angles at each nozzle evaluation time during the nozzle evaluation period, and the water flow diffusion angle is monitored by an angle measurement sensor installed at the corresponding nozzle of the dishwasher standard sample.

[0032] By obtaining the average inlet water pressure, it is helpful to promptly identify and resolve issues of unstable water pressure. By obtaining the average water jet angle, it is helpful to adjust the nozzle installation position or jet angle in a timely manner to ensure that the water flow can accurately cover the area to be cleaned. This significantly improves the cleaning effect, water-saving effect, and reliability of the dishwasher standard sample, while reducing the need for equipment maintenance and adjustment.

[0033] Furthermore, the specific process for evaluating nozzle continuity based on the acquired average nozzle data is as follows: An inlet pressure evaluation coefficient is obtained by weighting the deviation between the acquired average inlet pressure and the reference inlet pressure in the database using an inlet pressure weighting factor; a water jet angle evaluation coefficient is obtained by weighting the deviation between the acquired average water jet angle and the reference water jet angle in the database using a water jet angle weighting factor; a water flow diffusion angle evaluation coefficient is obtained by weighting the deviation between the acquired average water flow diffusion angle and the reference water flow diffusion angle in the database using a water flow diffusion angle weighting factor; the acquired inlet pressure evaluation coefficient, water jet angle evaluation coefficient, and water flow diffusion angle evaluation coefficient are coupled to obtain a nozzle continuity evaluation value; the nozzle continuity evaluation value is used to quantify the influence of the average nozzle data on the nozzle continuity of the dishwasher standard sample; the specific process for determining whether the nozzle continuity evaluation is complete is as follows: if the acquired nozzle continuity evaluation value is not greater than the reference nozzle continuity evaluation value in the database, the nozzle continuity evaluation is complete; if the acquired nozzle continuity evaluation value is greater than the reference nozzle continuity evaluation value in the database, an alarm command is sent.

[0034] In this embodiment, the alarm command is used to prompt preset personnel to inspect the nozzle based on the obtained nozzle continuity assessment value deviation. The nozzle continuity assessment value deviation represents the difference between the obtained nozzle continuity assessment value and the reference nozzle continuity assessment value in the database.

[0035] Specifically, the specific constraint expression for the nozzle continuity assessment value is as follows:

[0036] ,

[0037] In the formula, This represents the nozzle continuity assessment value of the dishwasher standard sample during the nozzle evaluation period. This represents the inlet water pressure weighting factor. This indicates the average inlet water pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Indicates the reference inlet water pressure. This represents the weighting factor for the water jet angle. This indicates the average water jet angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Indicates the reference water jet angle. Indicates the weighting factor for the water flow diffusion angle. This indicates the average water flow spread angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Indicates the reference water flow diffusion angle.

[0038] The reference inlet water pressure is represented by the sum and average of the historical inlet water pressures of the nozzles of the dishwasher standard samples in the database during the historical nozzle water spraying process. The reference water jet angle is represented by the sum and average of the historical water jet angles of the nozzles of the dishwasher standard samples in the database during the historical nozzle water spraying process. The reference water flow diffusion angle is represented by the sum and average of the historical water flow diffusion angles of the nozzles of the dishwasher standard samples in the database during the historical nozzle water spraying process.

[0039] The database stores preset weighting factors closely related to the nozzle continuity assessment values. These weighting factors establish a predefined mapping relationship with the corresponding average inlet water pressure, average water jet angle, and average water flow diffusion angle. It is worth noting that this mapping is not arbitrarily set; it can be a one-to-one correspondence or a many-to-one relationship. For example, in practical applications, when it is necessary to evaluate the nozzle continuity of a dishwasher standard sample, the real-time acquired average inlet water pressure, average water jet angle, and average water flow diffusion angle can be input into the preset mapping relationship to accurately obtain the inlet water pressure weighting factor, water jet angle weighting factor, and water flow diffusion angle weighting factor that match the nozzle continuity assessment values.

[0040] Importantly, to ensure consistency and comparability of the assessment, the values ​​of the inlet pressure weighting factor, water jet angle weighting factor, and water diffusion angle weighting factor in this example are all limited to between 0 and 1, and the sum of the three is 1.

[0041] The aforementioned database is a database established before the design of the physical performance analysis method for dishwasher standard samples to store various set data. The database includes, but is not limited to, reference nozzle continuity evaluation values, reference inlet water pressure, reference water jet angle, and reference water jet diffusion angle. These values ​​are directly set by technicians. The reference nozzle continuity evaluation value can be set based on the actual application scenario of the nozzle continuity of the dishwasher standard sample. For example, the reference nozzle continuity evaluation value is represented by the sum and average of the historical nozzle continuity evaluation values ​​of the dishwasher standard sample nozzles in the historical nozzle water spraying process in the database. In addition, the various values ​​in the database can be set and fine-tuned by technicians according to actual debugging.

[0042] It is important to understand that during the nozzle continuity assessment process, the nozzle continuity assessment value changes with the deviation of the average inlet water pressure (i.e., ), average water jet angle deviation (i.e. ), mean water flow spread angle deviation (i.e. The increase in inlet pressure leads to an increase in water flow velocity, which may cause the water flow to become too concentrated and affect the nozzle's spray angle, thus increasing the spray angle of the water flow. When the inlet pressure increases, the water flow velocity increases, thereby increasing the diffusion angle; conversely, when the inlet pressure decreases, the water flow diffusion angle decreases.

[0043] Compared with existing technologies, this example captures the details of nozzle performance more comprehensively by integrating multiple key parameters and conducting continuous evaluation. It avoids evaluation bias that may be caused by a single dimension, helps to predict potential nozzle failures earlier, and thus take preventive measures. This improves the accuracy of water spray continuity evaluation in the hydraulic performance prediction process of dishwasher standard samples, and effectively solves the problem of low accuracy in water spray continuity evaluation of dishwasher standard samples in the hydraulic performance prediction process in existing technologies.

[0044] Furthermore, the average fluid data includes average fluid hardness, average fluid viscosity, and average fluid density. The specific steps for obtaining the average fluid data include: N1, obtaining the average fluid hardness of the fluid in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period, comparing the obtained average fluid hardness with the reference fluid hardness in the database, and if the obtained average fluid hardness is not greater than the reference fluid hardness in the database, then proceeding to N2; otherwise, sending a fluid hardness adjustment command. N2, obtaining the average fluid viscosity and average fluid density of the fluid in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period.

[0045] In this embodiment, the system receives fluid hardness adjustment commands via a communication interface (such as RS-485 or CAN bus) and displays them on the dishwasher's control interface. The fluid hardness adjustment commands are used to prompt preset personnel to inspect and clean the pipes of the dishwasher standard sample. The average fluid hardness is the sum of the fluid hardness at each fluid evaluation moment within the fluid evaluation period. The fluid hardness is monitored by a water hardness sensor installed at the corresponding inlet of the dishwasher standard sample. The average fluid viscosity is the sum of the fluid viscosity at each fluid evaluation moment within the fluid evaluation period. The fluid viscosity is monitored by a fluid viscosity sensor installed at the corresponding inlet of the dishwasher standard sample. The average fluid density is the sum of the fluid density at each fluid evaluation moment within the fluid evaluation period. The fluid density is monitored by a density sensor installed at the corresponding inlet of the dishwasher standard sample.

[0046] By obtaining the average fluid hardness, it helps the design team to promptly identify and take measures to reduce the impact of water hardness on the dishwasher standard sample. By obtaining the average fluid viscosity, it helps the design team to optimize the fluid dynamics design of the dishwasher standard sample in a timely manner, thereby reducing energy consumption and improving cleaning effect. Compared with traditional dishwashers, it integrates sensors and divides the evaluation period, enabling it to better adapt to different water quality conditions and achieve a balance between cleaning effect and energy consumption.

[0047] Furthermore, the specific process for evaluating fluid continuity based on the acquired average fluid data is as follows: A fluid hardness evaluation coefficient is obtained by weighting the deviation between the acquired average fluid hardness and the reference fluid hardness in the database using a fluid hardness weighting factor; a fluid viscosity evaluation coefficient is obtained by weighting the deviation between the acquired average fluid viscosity and the reference fluid viscosity in the database using a fluid viscosity weighting factor; a fluid density evaluation coefficient is obtained by weighting the deviation between the acquired average fluid density and the reference fluid density in the database using a fluid density weighting factor; the acquired fluid hardness evaluation coefficient, fluid viscosity evaluation coefficient, and fluid density evaluation coefficient are coupled to obtain a fluid continuity evaluation value; the fluid continuity evaluation value is used to quantify the influence of the average fluid data on the fluid continuity of the dishwasher standard sample.

[0048] The specific constraint expression for the fluid continuity assessment value is as follows:

[0049] ,

[0050] In the formula, This indicates the fluid continuity assessment value in the nozzle pipe corresponding to the dishwasher standard sample during the fluid assessment period. This represents the fluid hardness weighting factor. This indicates the average fluid hardness in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period. Indicates the hardness of the reference fluid. This represents the fluid viscosity weighting factor. This indicates the average fluid viscosity in the nozzle channel corresponding to the dishwasher standard sample during the fluid evaluation period. Indicates the viscosity of the reference fluid. This represents the fluid density weighting factor. This indicates the average fluid density in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period. This represents the reference fluid density.

[0051] In this embodiment, the reference fluid hardness is represented by the summation and averaging of the historical fluid hardness of the dishwasher standard sample fluid in the database during the historical nozzle water spraying process; the reference fluid viscosity is represented by the summation and averaging of the historical fluid viscosity of the dishwasher standard sample fluid in the database during the historical nozzle water spraying process; and the reference fluid density is represented by the summation and averaging of the historical fluid density of the dishwasher standard sample fluid in the database during the historical nozzle water spraying process.

[0052] The database stores preset weighting factors closely related to the fluid continuity assessment values. These weighting factors establish a predefined mapping relationship with the corresponding average fluid hardness, average fluid viscosity, and average fluid density. It is worth noting that this mapping is not arbitrarily set; it can be a one-to-one correspondence or a many-to-one relationship. For example, in practical applications, when it is necessary to conduct a fluid continuity assessment on a dishwasher standard sample, the real-time acquired average fluid hardness, average fluid viscosity, and average fluid density can be input into the preset mapping relationship to accurately obtain the fluid hardness weighting factor, fluid viscosity weighting factor, and fluid density weighting factor that match the fluid continuity assessment value.

[0053] Of particular importance, to ensure consistency and comparability of the assessments, the values ​​of the fluid hardness weighting factor, fluid viscosity weighting factor, and fluid density weighting factor in this example are all limited to between 0 and 1, and the sum of the three is 1.

[0054] It is important to understand that during the fluid continuity assessment process, the fluid continuity assessment value changes with the deviation of average fluid hardness and average fluid viscosity (i.e., ), mean fluid density deviation (i.e. The viscosity of water increases with the increase of fluid hardness. Among them, when fluid hardness increases, the content of calcium and magnesium ions in water increases. These ions may react chemically with other components in the water to form precipitates or colloids, thereby increasing the viscosity of the water flow. Although there is no direct chemical relationship between fluid hardness and fluid density, an increase in hardness may lead to an increase in dissolved minerals in the water, thus affecting the overall density of the water.

[0055] Compared with existing technologies, this example provides a more accurate and intelligent assessment of fluid continuity by combining multi-dimensional evaluations of fluid hardness, viscosity and density. This avoids the coarse processing of traditional evaluation methods. Through real-time monitoring and automatic alarm mechanisms, the system can detect fluid anomalies earlier and take effective measures to improve equipment performance and reduce the risk of failure. This enables the dishwasher standard sample to maintain higher reliability and stability during long-term operation.

[0056] Furthermore, the specific process for determining whether the fluid continuity assessment is completed is as follows: if the obtained fluid continuity assessment value is not greater than the reference fluid continuity assessment value in the database, then the fluid continuity assessment is completed; if the obtained fluid continuity assessment value is greater than the reference fluid continuity assessment value in the database, then a jet height adjustment command is sent based on the obtained water flow control gain; the jet height adjustment command is used to adjust the jet height of the spray arm in the dishwasher standard sample; the water flow control gain represents the result of adding the nozzle jet gain and the adjustment gain; the nozzle jet gain represents the result obtained by mapping the deviation of the obtained fluid continuity assessment value into the database.

[0057] In this embodiment, the adjusted gain represents the result obtained by multiplying the nozzle jet gain by the deviation of the acquired fluid continuity assessment value. The fluid continuity assessment value deviation represents the difference between the reference fluid continuity assessment value and the acquired fluid continuity assessment value. The reference fluid continuity assessment value is represented by the sum and average of the historical fluid continuity assessment values ​​of the fluid in the historical nozzle water spraying process in the database.

[0058] The calculated water flow control gain is input into the database to map the corresponding jet height adjustment. This jet height adjustment is then sent to the controller inside the dishwasher, such as a motor, lead screw, or drive belt, via a communication interface (e.g., RS-485, CAN bus). The controller raises the spray arm via the lead screw. Simultaneously, the system monitors the spray arm height in real time to ensure adjustment accuracy and stability. If the fluid continuity assessment value obtained after an adjustment is greater than the reference fluid continuity assessment value in the database, the spray arm continues to rise until the newly obtained fluid continuity assessment value is no greater than the reference fluid continuity assessment value in the database. At this point, the system stops the spray arm's rising action and provides the jet height adjustment result to the user.

[0059] Compared with existing technologies, by monitoring and evaluating fluid continuity in real time and adjusting the jet height according to the evaluation results, the continuity and stability of fluid in dishwasher standard samples are significantly improved. The intelligent dynamic control can automatically adjust the jet height according to the fluid continuity evaluation value, which helps to adapt to the changes in water quality, tableware type and cleaning requirements of dishwasher standard samples.

[0060] Furthermore, the average main water pump data includes the average impeller vibration amplitude, the average main water pump speed, and the average main water pump output power. The specific steps for obtaining the average main water pump data include: M1, obtaining the average impeller vibration amplitude of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period, comparing the obtained average impeller vibration amplitude with the reference impeller vibration amplitude in the database, and if the obtained average impeller vibration amplitude is not greater than the reference impeller vibration amplitude in the database, then execute M2; otherwise, send an impeller vibration amplitude adjustment command. M2, obtaining the average main water pump speed and average main water pump output power of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period.

[0061] In this embodiment, the impeller vibration amplitude adjustment command is used to prompt preset personnel to perform maintenance on the main water pump, such as adjusting the coaxiality of the main water pump and the motor to reduce the vibration amplitude; the average impeller vibration amplitude is the sum of the impeller vibration amplitudes at each evaluation moment of the main water pump during the main water pump evaluation period, and the impeller vibration amplitude is monitored by a vibration sensor installed at the corresponding main water pump of the dishwasher standard sample; the average main water pump speed is the sum of the main water pump speeds at each evaluation moment of the fluid evaluation period, and the main water pump speed is monitored by a laser speed sensor installed at the corresponding main water pump of the dishwasher standard sample; the average main water pump output power is the sum of the main water pump output power at each evaluation moment of the main water pump during the main water pump evaluation period, wherein the main water pump output power is monitored by a voltage sensor and a current sensor installed at the corresponding main water pump of the dishwasher standard sample, that is, the current sensor is connected in series on the power line of the main water pump, and the voltage sensor is connected in parallel across the two ends of the power line to ensure accurate measurement of the current and voltage values ​​of the main water pump.

[0062] This example assesses the operational stability and durability of the main water pump by acquiring the average impeller vibration amplitude. Monitoring the average impeller vibration amplitude helps to identify potential problems with the main water pump in a timely manner and issue alarms. This not only improves the cleaning effect but also enhances the overall stability and reliability of the dishwasher standard sample.

[0063] Furthermore, the specific process for evaluating the continuity of the main water pump based on the acquired average main water pump data is as follows: An impeller vibration amplitude evaluation coefficient is obtained by weighting the deviation between the acquired average impeller vibration amplitude and the reference impeller vibration amplitude in the database using an impeller vibration amplitude weighting factor; a main water pump speed evaluation coefficient is obtained by weighting the deviation between the acquired average main water pump speed and the reference main water pump speed in the database using a main water pump speed weighting factor; a main water pump output power evaluation coefficient is obtained by weighting the deviation between the acquired average main water pump output power and the reference main water pump output power in the database using a main water pump output power weighting factor; the acquired impeller vibration amplitude evaluation coefficient, main water pump speed evaluation coefficient, and main water pump output power evaluation coefficient are coupled to obtain the main water pump continuity evaluation value; the main water pump continuity evaluation value is used to quantify the influence of the main water pump data on the continuity of the main water pump of the dishwasher standard sample.

[0064] The specific constraint expression for the main water pump continuity assessment value is as follows:

[0065] ;

[0066] In the formula, This indicates the main water pump continuity assessment value corresponding to the dishwasher standard sample during the main water pump evaluation period. This represents the impeller vibration amplitude weighting factor. This indicates the average impeller vibration amplitude of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period. Indicates the reference impeller vibration amplitude. This represents the main water pump speed weighting factor. This indicates the average main water pump speed corresponding to the dishwasher standard sample during the main water pump evaluation period. Indicates the reference main water pump speed. This represents the weighting factor for the main water pump output power. This represents the average main water pump output power corresponding to the dishwasher standard sample during the main water pump evaluation period. This indicates the reference main water pump output power.

[0067] In this embodiment, the reference impeller vibration amplitude is represented by the summation and averaging of the historical impeller vibration amplitudes of the main water pumps of the dishwasher standard samples in the database during historical main water pump operation. The reference main water pump speed is represented by the summation and averaging of the historical main water pump speeds of the main water pumps of the dishwasher standard samples in the database during historical main water pump operation. The reference main water pump output power is represented by the summation and averaging of the historical main water pump output power of the main water pumps of the dishwasher standard samples in the database during historical main water pump operation.

[0068] The database stores preset weighting factors closely related to the nozzle continuity assessment values. These weighting factors establish a predefined mapping relationship with the corresponding average inlet water pressure, average water jet angle, and average water flow diffusion angle. It is worth noting that this mapping is not arbitrarily set; it can be a one-to-one correspondence or a many-to-one relationship. For example, in practical applications, when it is necessary to evaluate the nozzle continuity of a dishwasher standard sample, the real-time acquired average inlet water pressure, average water jet angle, and average water flow diffusion angle can be input into the preset mapping relationship to accurately obtain the inlet water pressure weighting factor, water jet angle weighting factor, and water flow diffusion angle weighting factor that match the nozzle continuity assessment values.

[0069] Most importantly, to ensure the consistency and comparability of the evaluation, the values ​​of the impeller vibration amplitude weighting factor, the main pump speed weighting factor, and the main pump output power weighting factor in this example are all limited to between 0 and 1, and the sum of the three is 1.

[0070] It is important to understand that during the main water pump continuity assessment, the nozzle continuity assessment value varies with the average impeller vibration amplitude and the average main water pump speed deviation (i.e., ), average main pump output power deviation (i.e. The vibration amplitude of the impeller increases with the increase of the main pump speed. This is because the increase of the speed leads to an increase in the centrifugal force and hydraulic impact on the impeller during rotation, which in turn causes greater vibration. Furthermore, according to the principle of fluid mechanics, the power of the main pump is proportional to the cube of its speed, which will significantly increase the output power of the main pump.

[0071] Compared with existing technologies, this example comprehensively considers multiple key parameters (impeller vibration amplitude, rotational speed, and output power) to provide a more refined and comprehensive assessment of the main water pump's condition. It also allows for more flexible evaluation of different parameters of the main water pump, improving the accuracy of the assessment, thereby reducing the probability of failure and extending the service life of the main water pump. This improves the accuracy of spray continuity assessment for dishwasher standard samples during hydraulic performance prediction, effectively solving the problem of low accuracy in spray continuity assessment for dishwasher standard samples during hydraulic performance prediction in existing technologies.

[0072] Furthermore, the specific process for determining whether the main water pump continuity assessment has been completed is as follows: If the obtained main water pump continuity assessment value is not greater than the reference main water pump continuity assessment value in the database, then the main water pump continuity assessment is completed; if the obtained main water pump continuity assessment value is greater than the reference main water pump continuity assessment value in the database, then a main water pump speed adjustment command is sent based on the obtained speed control gain; the main water pump speed adjustment command is used to adjust the frequency of the frequency converter driver of the motor corresponding to the main water pump; the speed control gain represents the result obtained by adding the initial speed of the main water pump to the speed adjustment amount; the speed adjustment amount represents the result obtained by mapping the deviation of the obtained main water pump continuity assessment value into the database.

[0073] In this embodiment, the deviation of the main water pump continuity assessment value represents the difference between the obtained main water pump continuity assessment value and the reference main water pump continuity assessment value in the database. The reference main water pump continuity assessment value is represented by the sum and average of the historical main water pump continuity assessment values ​​in the database during the historical operation of the main water pump.

[0074] The acquired speed control gain is input into the database to map the corresponding main water pump speed adjustment amount. At the same time, the received main water pump speed adjustment command is sent to the corresponding motor frequency converter driver of the main water pump through a communication interface (such as RS-485, CAN bus). After receiving the main water pump speed adjustment command, the controller of the motor frequency converter driver increases the speed of the main water pump, thereby increasing the frequency of the motor frequency converter driver. During the process of increasing the frequency of the motor frequency converter driver, the system will monitor the change of the main water pump speed in real time. If the fluid continuity assessment value re-acquired after one adjustment is greater than the reference fluid continuity assessment value in the database, the speed of the main water pump will continue to be increased until the re-acquired fluid continuity assessment value is no greater than the reference fluid continuity assessment value in the database, at which point the system will automatically stop adjusting the speed of the main water pump.

[0075] Compared with existing technologies, the introduction of speed control gain and speed adjustment amount makes the adjustment process more precise, enabling automatic evaluation of the main water pump's continuity and automatic sending of speed adjustment commands based on the evaluation results. This reduces manual intervention and improves the efficiency and accuracy of evaluation and adjustment. At the same time, the adjustment results are promptly fed back to the user, allowing the user to understand the status of the dishwasher's standard sample, thereby reducing the failure rate and helping to reduce the user's maintenance costs and downtime.

[0076] like Figure 2 The diagram shows a structural schematic of a physical performance analysis system based on dishwasher standard samples provided in this application embodiment. The system includes: a nozzle continuity assessment module, a fluid continuity assessment module, and a main water pump continuity assessment module. The nozzle continuity assessment module performs a nozzle continuity assessment based on the acquired average nozzle data during the hydraulic performance analysis of the dishwasher standard samples to determine whether the nozzle continuity assessment is complete. The fluid continuity assessment module performs a fluid continuity assessment based on the acquired average fluid data if the nozzle continuity assessment is complete to determine whether the fluid continuity assessment is complete. The main water pump continuity assessment module performs a main water pump continuity assessment based on the acquired average main water pump data if the fluid continuity assessment is complete to determine whether the main water pump continuity assessment is complete.

[0077] In this embodiment, existing technologies for analyzing dishwasher performance often rely on single-indicator testing (such as measuring only water pressure or the number of nozzles). However, this example constructs a three-level linkage evaluation module of "nozzle → fluid → main water pump" to form a complete closed loop for cleaning chain analysis. For example, the nozzle continuity evaluation module accurately calculates the uniformity of water flow coverage through real-time data acquisition, the fluid continuity evaluation module further analyzes the turbulence intensity and energy loss of the water flow path to ensure cleaning efficiency, and the main water pump continuity evaluation module finally verifies the durability and thermal efficiency of the circulating heat pump, achieving full-chain performance verification.

[0078] In summary, the embodiments of this application use the acquired average nozzle data to perform nozzle continuity assessment to determine whether the nozzle continuity assessment is complete. If so, the fluid continuity assessment is then determined based on the results of the fluid continuity assessment. If so, the main water pump continuity assessment is then determined based on the results of the main water pump continuity assessment. This achieves a more accurate assessment of the continuity of nozzles, fluids, and the main water pump, thereby improving the accuracy of the water spray continuity assessment of the dishwasher standard sample during the hydraulic performance prediction process. This effectively solves the problem of low accuracy in the water spray continuity assessment of the dishwasher standard sample during the hydraulic performance prediction process in the prior art.

[0079] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0080] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0081] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0082] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0083] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0084] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for analyzing the physical properties of dishwasher standard samples, characterized in that, Includes the following steps: Step 1: During the hydraulic performance analysis of the dishwasher standard sample, a nozzle continuity assessment is performed based on the acquired average nozzle data to determine whether the nozzle continuity assessment has been completed. The specific constraint expression for the nozzle continuity assessment value is as follows: ； In the formula, This represents the nozzle continuity assessment value of the dishwasher standard sample during the nozzle evaluation period. This represents the inlet water pressure weighting factor. This indicates the average inlet water pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Indicates the reference inlet water pressure. This represents the weighting factor for the water jet angle. This indicates the average water jet angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Indicates the reference water jet angle. Indicates the weighting factor for the water flow diffusion angle. This indicates the average water flow spread angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Indicates the reference water flow diffusion angle; Step 2: If the nozzle continuity assessment is completed, a fluid continuity assessment is performed based on the acquired average fluid data to determine whether the fluid continuity assessment is complete. The specific constraint expression for the fluid continuity assessment value is as follows: ； In the formula, This indicates the fluid continuity assessment value in the nozzle pipe corresponding to the dishwasher standard sample during the fluid assessment period. This represents the fluid hardness weighting factor. This indicates the average fluid hardness in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period. Indicates the hardness of the reference fluid. This represents the fluid viscosity weighting factor. This indicates the average fluid viscosity in the nozzle channel corresponding to the dishwasher standard sample during the fluid evaluation period. Indicates the viscosity of the reference fluid. This represents the fluid density weighting factor. This indicates the average fluid density in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period. Indicates the reference fluid density; The specific procedure for determining whether the fluid continuity assessment has been completed is as follows: If the obtained fluid continuity assessment value is not greater than the reference fluid continuity assessment value in the database, then the fluid continuity assessment is completed. If the obtained fluid continuity assessment value is greater than the reference fluid continuity assessment value in the database, a jet height adjustment command is sent based on the obtained water flow control gain. The jet height adjustment command is used to adjust the jet height of the spray arm in the dishwasher standard sample; The water flow control gain represents the result of coupling the nozzle jet gain with the adjustment gain. The nozzle jet gain represents the result obtained by mapping the deviation of the acquired fluid continuity assessment value into the database; Step 3: If the fluid continuity assessment is completed, then the main pump continuity assessment is performed based on the acquired average main pump data to determine whether the main pump continuity assessment is completed. The specific process for evaluating the continuity of the main water pump based on the acquired average main water pump data is as follows: The impeller vibration amplitude evaluation coefficient is obtained by weighting the deviation between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database using an impeller vibration amplitude weighting factor. The main water pump speed evaluation coefficient is obtained by weighting the deviation between the obtained average main water pump speed and the reference main water pump speed in the database using the main water pump speed weighting factor. The main water pump output power evaluation coefficient is obtained by weighting the deviation between the obtained average main water pump output power and the reference main water pump output power in the database using the main water pump output power weighting factor. The obtained impeller vibration amplitude evaluation coefficient, main water pump speed evaluation coefficient, and main water pump output power evaluation coefficient are coupled to obtain the main water pump continuity evaluation value. The specific constraint expression for the main water pump continuity assessment value is as follows: ； In the formula, This indicates the main water pump continuity assessment value corresponding to the dishwasher standard sample during the main water pump evaluation period. This represents the impeller vibration amplitude weighting factor. This indicates the average impeller vibration amplitude of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period. Indicates the reference impeller vibration amplitude. This represents the main water pump speed weighting factor. This indicates the average main water pump speed corresponding to the dishwasher standard sample during the main water pump evaluation period. Indicates the reference main water pump speed. This represents the weighting factor for the main water pump output power. This represents the average main water pump output power corresponding to the dishwasher standard sample during the main water pump evaluation period. Indicates the reference main water pump output power; The main water pump continuity assessment value is used to quantify the impact of the main water pump data on the main water pump continuity of the dishwasher standard sample. The specific steps for obtaining the average nozzle data include: Q1: Obtain the average inlet water pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period. Compare and analyze the obtained average inlet water pressure with the reference inlet water pressure in the database. If the obtained average inlet water pressure is not greater than the reference inlet water pressure in the database, then execute Q2. Otherwise, send an inlet water pressure adjustment command based on the deviation of the obtained average inlet water pressure. The inlet water pressure adjustment command means adjusting the inlet water valve to adjust the inlet water pressure of the nozzle at the corresponding nozzle evaluation time. Q2, obtain the average water jet angle and average water spread angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period; The specific steps for acquiring the average fluid data include: N1: Obtain the average fluid hardness of the fluid in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period. Compare and analyze the obtained average fluid hardness with the reference fluid hardness in the database. If the obtained average fluid hardness is not greater than the reference fluid hardness in the database, then execute N2; otherwise, send a fluid hardness adjustment command. The fluid hardness adjustment command is used to prompt the preset personnel to inspect the pipe of the dishwasher standard sample. N2, obtain the average fluid viscosity and average fluid density of the fluid in the nozzle pipe corresponding to the dishwasher standard sample during the fluid evaluation period; The specific steps for obtaining the average main water pump data include: M1: Obtain the average impeller vibration amplitude of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period. Compare and analyze the obtained average impeller vibration amplitude with the reference impeller vibration amplitude in the database. If the obtained average impeller vibration amplitude is not greater than the reference impeller vibration amplitude in the database, then execute M2; otherwise, send an impeller vibration amplitude adjustment command. The impeller vibration amplitude adjustment command is used to prompt the preset personnel to inspect the main water pump. M2, obtain the average main water pump speed and average main water pump output power of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period.

2. The physical performance analysis method based on dishwasher standard samples as described in claim 1, characterized in that, The specific process for evaluating nozzle continuity based on the acquired average nozzle data is as follows: The inlet pressure evaluation coefficient is obtained by weighting the deviation between the obtained average inlet pressure and the reference inlet pressure in the database using an inlet pressure weighting factor. The water jet angle evaluation coefficient is obtained by weighting the deviation between the obtained average water jet angle and the reference water jet angle in the database using a water jet angle weighting factor. The water flow diffusion angle evaluation coefficient is obtained by weighting the deviation between the obtained average water flow diffusion angle and the reference water flow diffusion angle in the database using a water flow diffusion angle weighting factor. The obtained inlet pressure evaluation coefficient, water jet angle evaluation coefficient, and water flow diffusion angle evaluation coefficient are coupled to obtain the nozzle continuity evaluation value. The nozzle continuity assessment value is used to quantify the impact of average nozzle data on the nozzle continuity of the dishwasher standard sample. The specific procedure for determining whether the nozzle continuity assessment has been completed is as follows: If the obtained nozzle continuity assessment value is not greater than the reference nozzle continuity assessment value in the database, the nozzle continuity assessment is completed. If the obtained nozzle continuity assessment value is greater than the reference nozzle continuity assessment value in the database, an alarm command is sent.

3. The physical performance analysis method based on dishwasher standard samples as described in claim 1, characterized in that, The specific process for assessing fluid continuity based on the acquired average fluid data is as follows: The fluid hardness evaluation coefficient is obtained by weighting the deviation between the obtained average fluid hardness and the reference fluid hardness in the database using a fluid hardness weighting factor. The fluid viscosity evaluation coefficient is obtained by weighting the deviation between the obtained average fluid viscosity and the reference fluid viscosity in the database using a fluid viscosity weighting factor. The fluid density evaluation coefficient is obtained by weighting the deviation between the obtained average fluid density and the reference fluid density in the database using a fluid density weighting factor. The fluid hardness evaluation coefficient, fluid viscosity evaluation coefficient, and fluid density evaluation coefficient are coupled to obtain the fluid continuity evaluation value. The fluid continuity assessment value is used to quantify the impact of average fluid data on the fluid continuity of the dishwasher standard sample.

4. The physical performance analysis method based on dishwasher standard samples as described in claim 1, characterized in that, The specific procedure for determining whether the main water pump continuity assessment has been completed is as follows: If the obtained main pump continuity assessment value is not greater than the reference main pump continuity assessment value in the database, the main pump continuity assessment is completed. If the obtained main pump continuity assessment value is greater than the reference main pump continuity assessment value in the database, a main pump speed adjustment command is sent based on the obtained speed control gain. The main water pump speed adjustment command is used to adjust the frequency of the frequency converter driver for the corresponding motor of the main water pump. The speed control gain represents the result obtained by coupling the initial speed of the main water pump with the speed adjustment amount; The speed adjustment amount represents the result obtained by mapping the deviation of the main water pump continuity assessment value into the database.

5. A physical performance analysis system based on dishwasher standard samples, employing the physical performance analysis method based on dishwasher standard samples as described in any one of claims 1-4, characterized in that, include: Nozzle continuity assessment module, fluid continuity assessment module, main water pump continuity assessment module; The nozzle continuity assessment module is used to assess the nozzle continuity based on the acquired average nozzle data during the hydraulic performance analysis of the dishwasher standard sample in order to determine whether the nozzle continuity assessment has been completed. The fluid continuity assessment module is used to determine whether the fluid continuity assessment has been completed by performing a fluid continuity assessment based on the acquired average fluid data if the nozzle continuity assessment has been completed. The main pump continuity assessment module is used to determine whether the main pump continuity assessment has been completed by performing a main pump continuity assessment based on the acquired average main pump data if the fluid continuity assessment has been completed.

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