Physical performance analysis method and system based on dish washing machine standard sample

Abstract

The invention discloses a physical performance analysis method and system based on a dish-washing machine standard sample, and relates to the technical field of electric digital data processing. The physical property analysis method of the dish-washing machine standard sample comprises the following steps: evaluating the continuity of a nozzle; fluid continuity evaluation; evaluating the continuity of the main water pump. Nozzle continuity evaluation is carried out through the obtained average nozzle data to judge whether nozzle continuity evaluation is completed or not, if yes, whether fluid continuity evaluation is completed or not is judged based on the fluid continuity evaluation result, and if yes, fluid continuity evaluation is completed. And if so, judging whether the water spraying continuity evaluation of the dish-washing machine standard sample is completed based on the main water pump continuity evaluation result, thereby achieving the effect of improving the accuracy of the water spraying continuity evaluation of the dish-washing machine standard sample in the hydraulic performance prediction process. The problem that in the prior art, in the hydraulic performance prediction process of a dish-washing machine standard sample, the accuracy of water spraying continuity evaluation is not high is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical digital data processing, and particularly to a physical performance analysis method and system based on dishwasher standard samples. Background Art

[0002] With the continuous progress of dishwasher technology, more and more research and standardized test methods have been proposed to evaluate the performance and efficiency of dishwashers. The physical performance analysis method of dishwasher standard samples usually includes multiple dimensions such as water flow rate, injection pressure, temperature, power consumption, and cleaning effect. These physical performances directly affect the working efficiency, energy-saving effect, and cleaning quality of dishwashers. In order to ensure that dishwashers can achieve the expected effects in actual use, relevant standard samples are usually used to simulate the working performance under different load conditions.

[0003] In the prior art, a flow sensor is installed to monitor the water flow rate of the dishwasher in real time to ensure that the main water pump provides an appropriate water flow rate during the entire cleaning process; a pressure sensor is used to measure the water pressure at the nozzle to ensure that the injection pressure meets the design standard; a temperature sensor is used to monitor the water temperature in real time to ensure that the heating element works within an appropriate temperature range; through a data acquisition system, the data of each sensor are collected centrally, and an analysis algorithm is used to process these data to obtain the comprehensive performance evaluation result of the dishwasher.

[0004] For example, a three-dimensional parametric design method based on an intelligent dishwasher disclosed in the invention patent announcement with the publication number of CN118395689B includes: obtaining dishwasher sensing data and dishwasher structure data and constructing a dishwasher sensing model; performing data fusion according to the dishwasher sensing data to obtain multi-modal sensing data; performing distribution analysis according to the multi-modal sensing data to obtain dish distribution data; obtaining dishwasher spray arm parameter data and performing path analysis to obtain the optimal spray path data; performing distribution analysis on the dish distribution data to obtain dish oil stain distribution data; performing angle evaluation on the dish oil stain distribution data to obtain the optimal spray angle data; performing strategy analysis on the optimal spray path data and the optimal spray angle data to obtain the optimal spray strategy, and parameterizing the dishwasher sensing model to obtain a dishwasher spray parameterized model.

[0005] For example, a method for predicting the overall hydraulic performance of a sink - type dishwasher disclosed in the patent application with the publication number: CN116401811A includes: under the condition of the stationary volute, performing unsteady numerical calculation on the open - type main water pump to obtain the external characteristic curve; fitting the external characteristic curve of the open - type main water pump to obtain its rotational speed adaptation coefficient A and axial velocity coefficient B; establishing the mapping relationship between the composite superposition virtual impeller and the composite impeller, and at the same time, based on the GMO model and the virtual impeller, realizing the passive rotation of the volute - type spray arm to obtain the passive rotational speed of the volute and the nozzle flow rate; setting the nozzle mass source with the nozzle flow rate and the passive rotational speed of the volute - type spray arm as boundary conditions, and at the same time, performing non - submerged rotational jet calculation of multiple nozzles in combination based on the VOF method.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, it is found that the above - mentioned technology has at least the following technical problems: In the prior art, the hydraulic prediction of dishwashers is usually based on the fluid mechanics model, but its accuracy and reliability are often affected by multiple factors. For example, the non - uniformity of water flow distribution, the influence of water quality on the fluid, the influence of nozzles and water flow paths; secondly, the hydraulic prediction of dishwashers is not only directly related to the flow rate and pressure, but also involves various parameters of nozzles, fluid characteristics, and the main water pump itself. These factors act together, affecting the accuracy of the hydraulic prediction results, and there is a problem of low accuracy in evaluating the water spray continuity during the hydraulic performance prediction of dishwasher standard samples. Summary of the Invention

[0007] The embodiments of the present application provide a physical property analysis method and system based on dishwasher standard samples, which solve the problem of low accuracy in evaluating the water spray continuity during the hydraulic performance prediction of dishwasher standard samples in the prior art, and achieve an improvement in the accuracy of evaluating the water spray continuity during the hydraulic performance prediction of dishwasher standard samples.

[0008] The embodiments of the present application provide a physical property analysis method based on dishwasher standard samples, including the following steps: Step 1, during the hydraulic performance analysis of the dishwasher standard sample, based on the obtained average nozzle data, perform nozzle continuity evaluation to determine whether the nozzle continuity evaluation is completed; Step 2, if the nozzle continuity evaluation is completed, based on the obtained average fluid data, perform fluid continuity evaluation to determine whether the fluid continuity evaluation is completed; Step 3, if the fluid continuity evaluation is completed, based on the obtained average main water pump data, perform main water pump continuity evaluation to determine whether the main water pump continuity evaluation is completed.

[0009] Further, the average nozzle data includes the average water inlet pressure, the average water flow jet angle, and the average water flow diffusion angle; the specific steps for obtaining the average nozzle data are as follows: Q1, obtain the average water inlet pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period, compare and analyze the obtained average water inlet pressure with the reference water inlet pressure in the database. If the obtained average water inlet pressure is not greater than the reference water inlet pressure in the database, then execute Q2; otherwise, send a water inlet pressure adjustment instruction, where the water inlet pressure adjustment instruction indicates adjusting the water inlet pressure of the nozzle at the corresponding nozzle evaluation moment by adjusting the water inlet valve, and the water inlet pressure deviation represents the difference between the obtained average water inlet pressure and the reference water inlet pressure in the database; Q2, obtain the average water flow jet angle and the average water flow diffusion angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period.

[0010] Further, the specific process for nozzle continuity evaluation based on the obtained average nozzle data is as follows: perform a weighting process on the deviation degree between the obtained average water inlet pressure and the reference water inlet pressure in the database through the water inlet pressure weighting factor to obtain the water inlet pressure evaluation coefficient; perform a weighting process on the deviation degree between the obtained average water flow jet angle and the reference water flow jet angle in the database through the water flow jet angle weighting factor to obtain the water flow jet angle evaluation coefficient; perform a weighting process on the deviation degree between the obtained average water flow diffusion angle and the reference water flow diffusion angle in the database through the water flow diffusion angle weighting factor to obtain the water flow diffusion angle evaluation coefficient; perform a coupling process on the obtained water inlet pressure evaluation coefficient, water flow jet angle evaluation coefficient, and water flow diffusion angle evaluation coefficient to obtain the nozzle continuity evaluation value; the nozzle continuity evaluation value is used to quantify the influence degree 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 completed is as follows: if the obtained nozzle continuity evaluation value is not greater than the reference nozzle continuity evaluation value in the database, then the nozzle continuity evaluation is completed; if the obtained nozzle continuity evaluation value is greater than the reference nozzle continuity evaluation value in the database, then send an alarm instruction.

[0011] Further, the average fluid data includes the average fluid hardness, the average fluid viscosity, and the average fluid density; the specific steps for obtaining the average fluid data are as follows: N1, obtain the average fluid hardness of the fluid in the nozzle pipeline of 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 instruction, where the fluid hardness adjustment instruction is used to prompt the preset personnel to repair the pipeline of the dishwasher standard sample, and the fluid hardness deviation represents the difference between the obtained average fluid hardness and the reference fluid hardness in the database; N2, obtain the average fluid viscosity and the average fluid density of the fluid in the nozzle pipeline of the dishwasher standard sample during the fluid evaluation period.

[0012] Further, the specific process for fluid continuity evaluation based on the obtained average fluid data is as follows: The deviation degree between the obtained average fluid hardness and the reference fluid hardness in the database is weighted by the fluid hardness weight factor to obtain the fluid hardness evaluation coefficient; the deviation degree between the obtained average fluid viscosity and the reference fluid viscosity in the database is weighted by the fluid viscosity weight factor to obtain the fluid viscosity evaluation coefficient; the deviation degree between the obtained average fluid density and the reference fluid density in the database is weighted by the fluid density weight factor to obtain the fluid density evaluation coefficient; the obtained 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 evaluation value is used to quantify the influence degree of the average fluid data on the fluid continuity of the dishwasher standard sample.

[0013] Further, 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 are as follows: 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 instruction, and the impeller vibration amplitude adjustment instruction is used to prompt the preset personnel to repair 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, obtain 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.

[0014] Further, the specific process for main water pump continuity evaluation based on the obtained average main water pump data is as follows: The deviation degree between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database is weighted by the impeller vibration amplitude weight factor to obtain the impeller vibration amplitude evaluation coefficient; the deviation degree between the obtained average main water pump speed and the reference main water pump speed in the database is weighted by the main water pump speed weight factor to obtain the main water pump speed evaluation coefficient; the deviation degree between the obtained average main water pump output power and the reference main water pump output power in the database is weighted by the main water pump output power weight factor to obtain the main water pump output power evaluation coefficient; 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 main water pump continuity evaluation value is used to quantify the influence degree of the main water pump data on the main water pump continuity of the dishwasher standard sample.

[0015] The embodiment of the present application provides a physical performance analysis system based on a dishwasher standard sample, including: a nozzle continuity evaluation module, a fluid continuity evaluation module, and a main water pump continuity evaluation module; wherein, the nozzle continuity evaluation module is used to evaluate the nozzle continuity based on the obtained average nozzle data during the hydraulic performance analysis of the dishwasher standard sample to determine whether the nozzle continuity evaluation is completed; the fluid continuity evaluation module is used to, if the nozzle continuity evaluation is completed, evaluate the fluid continuity based on the obtained average fluid data to determine whether the fluid continuity evaluation is completed; the main water pump continuity evaluation module is used to, if the fluid continuity evaluation is completed, evaluate the main water pump continuity based on the obtained average main water pump data to determine whether the main water pump continuity evaluation is completed.

[0016] One or more technical solutions provided in the embodiment of the present application have at least the following technical effects or advantages: 1. By evaluating the nozzle continuity based on the obtained average nozzle data to determine whether the nozzle continuity evaluation is completed, if so, determining whether the fluid continuity evaluation is completed based on the result of the fluid continuity evaluation, and if so, determining whether the water spraying continuity evaluation of the dishwasher standard sample is completed based on the result of the main water pump continuity evaluation, more accurate evaluations of the continuity of the nozzle, fluid, and main water pump are achieved. Furthermore, the accuracy of the water spraying continuity evaluation during the hydraulic performance prediction of the dishwasher standard sample is improved, effectively solving the problem of low accuracy of the water spraying continuity evaluation during the hydraulic performance prediction of the dishwasher standard sample in the prior art.

[0017] 2. By weighting the deviation degree between the obtained average inlet water pressure and the reference inlet water pressure in the database through the inlet water pressure weight factor to obtain the inlet water pressure evaluation coefficient, and at the same time coupling the obtained inlet water pressure evaluation coefficient, water flow injection angle evaluation coefficient, and water flow diffusion angle evaluation coefficient to obtain the nozzle continuity evaluation value, the accuracy of obtaining the nozzle continuity evaluation value is improved, and furthermore, more accurate evaluation of the nozzle continuity of the dishwasher standard sample is achieved.

[0018] 3. By weighting the deviation degree between the obtained average fluid hardness and the reference fluid hardness in the database through the fluid hardness weight factor to obtain the fluid hardness evaluation coefficient, and at the same time coupling the obtained fluid hardness evaluation coefficient, fluid viscosity evaluation coefficient, and fluid density evaluation coefficient to obtain the fluid continuity evaluation value, the accuracy of obtaining the fluid continuity evaluation value is improved, and furthermore, more accurate evaluation of the fluid continuity of the dishwasher standard sample is achieved.

[0019] 4. The deviation degree between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database is weighted by the impeller vibration amplitude weight factor to obtain the impeller vibration amplitude evaluation coefficient. At the same time, the obtained impeller vibration amplitude evaluation coefficient, the main water pump speed evaluation coefficient, and the main water pump output power evaluation coefficient are coupled to obtain the main water pump continuity evaluation value, which improves the accuracy of obtaining the main water pump continuity evaluation value, and further realizes a more accurate evaluation of the main water pump continuity of the dishwasher standard sample. Description of the Drawings

[0020] Figure 1 It is a flowchart of the physical property analysis method based on the dishwasher standard sample provided by the embodiment of the present application; Figure 2 It is a schematic structural diagram of the physical property analysis system based on the dishwasher standard sample provided by the embodiment of the present application. Detailed Embodiments

[0021] In the embodiment of the present application, by providing a physical property analysis method and system based on the dishwasher standard sample, the problem of low accuracy in evaluating the spray water continuity during the hydraulic performance prediction of the dishwasher standard sample in the prior art is solved. During the hydraulic performance analysis of the dishwasher standard sample, the nozzle continuity evaluation is performed based on the obtained average nozzle data to obtain the nozzle continuity evaluation value. At the same time, it is judged whether the nozzle continuity evaluation is completed based on the obtained nozzle continuity evaluation value. If so, the fluid data during the operation of the dishwasher is monitored in real time to obtain the average fluid data, and then the fluid continuity analysis is performed based on the obtained average fluid data to judge whether the fluid continuity evaluation is completed. If so, the main water pump data during the operation of the dishwasher is monitored in real time to obtain the average main water pump data, and finally the main water pump continuity analysis is performed based on the obtained average main water pump data to judge whether the main water pump continuity evaluation is completed, which improves the accuracy of evaluating the spray water continuity during the hydraulic performance prediction of the dishwasher standard sample.

[0022] The technical solution in the embodiment of the present application is to solve the problem of low accuracy in evaluating the spray water continuity during the hydraulic performance prediction of the dishwasher standard sample. The general idea is as follows: The nozzle continuity evaluation is performed based on the obtained average nozzle data to judge whether the nozzle continuity evaluation is completed. If so, it is judged whether the fluid continuity evaluation is completed based on the result of the fluid continuity evaluation. If so, it is judged whether the spray water continuity of the dishwasher standard sample is completed based on the result of the main water pump continuity evaluation, which improves the accuracy of evaluating the spray water continuity during the hydraulic performance prediction of the dishwasher standard sample.

[0023] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0024] As Figure 1 shown, it is a flowchart of a physical performance analysis method based on a dishwasher standard sample provided by an embodiment of the present application. The physical performance analysis method based on the dishwasher standard sample provided by the embodiment of the present application includes the following steps: In the process of hydraulic performance analysis of the dishwasher standard sample, nozzle continuity evaluation is performed based on the obtained average nozzle data to determine whether the nozzle continuity evaluation is completed; if the nozzle continuity evaluation is completed, fluid continuity evaluation is performed based on the obtained average fluid data to determine whether the fluid continuity evaluation is completed; if the fluid continuity evaluation is completed, main pump continuity evaluation is performed based on the obtained average main pump data to determine whether the main pump continuity evaluation is completed.

[0025] In this embodiment, the water spray continuity evaluation process in the hydraulic performance prediction process of the dishwasher standard sample covers three key aspects: nozzle continuity, fluid continuity, and main pump continuity, forming a complete hydraulic performance evaluation system. Compared with the prior art, this example can more accurately predict and optimize the hydraulic performance. Through the comprehensive evaluation of the water spray continuity of the nozzle, fluid, and main pump, it helps to more accurately optimize the performance and cooperation of each part of the dishwasher standard sample, avoiding the decline of the overall hydraulic performance caused by poor performance of a certain part. This optimization not only improves the hydraulic efficiency of the dishwasher standard sample but also improves the accuracy of the water spray continuity evaluation in the hydraulic performance prediction process of the dishwasher standard sample.

[0026] Furthermore, the average nozzle data includes average inlet pressure, average water flow injection angle, and average water flow diffusion angle; the specific steps for obtaining the average nozzle data include: Q1, obtaining the average inlet pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period, comparing the obtained average inlet pressure with the reference inlet pressure in the database. If the obtained average inlet pressure is not greater than the reference inlet pressure in the database, then execute Q2, otherwise, send an inlet pressure adjustment instruction based on the obtained inlet pressure deviation. Q2, obtaining the average water flow injection angle and average water flow diffusion angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period.

[0027] In this embodiment, the inlet water pressure is adjusted as follows: based on the reduction amount of the inlet water pressure mapped in the database according to the obtained inlet water pressure deviation, the obtained reduction amount of the inlet water pressure is input into the controller of the inlet valve to automatically reduce the inlet water pressure of the nozzle at the corresponding nozzle evaluation moment. The inlet water pressure deviation represents the difference between the obtained average inlet water pressure and the reference inlet water pressure in the database. The average inlet water pressure is the result of summing and averaging the inlet water pressures at each nozzle evaluation moment 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 flow injection angle is the result of summing and averaging the water flow injection angles at each nozzle evaluation moment during the nozzle evaluation period, and the water flow injection 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 result of summing and averaging the water flow diffusion angles at each nozzle evaluation moment 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.

[0028] By obtaining the average inlet water pressure, it helps to timely detect and solve the problem of unstable water pressure. By obtaining the average water flow injection angle, it helps to timely adjust the installation position or injection angle of the nozzle to ensure that the water flow can accurately cover the area to be cleaned, thereby significantly improving the cleaning effect, water-saving effect and reliability of the dishwasher standard sample, and reducing the need for equipment maintenance and adjustment.

[0029] Furthermore, the specific process for evaluating the nozzle continuity based on the obtained average nozzle data is as follows: the deviation degree between the obtained average inlet water pressure and the reference inlet water pressure in the database is weighted by the inlet water pressure weight factor to obtain the inlet water pressure evaluation coefficient; the deviation degree between the obtained average water flow injection angle and the reference water flow injection angle in the database is weighted by the water flow injection angle weight factor to obtain the water flow injection angle evaluation coefficient; the deviation degree between the obtained average water flow diffusion angle and the reference water flow diffusion angle in the database is weighted by the water flow diffusion angle weight factor to obtain the water flow diffusion angle evaluation coefficient; the obtained inlet water pressure evaluation coefficient, water flow injection angle evaluation coefficient, and water flow diffusion angle evaluation coefficient are coupled to obtain the nozzle continuity evaluation value; the nozzle continuity evaluation value is used to quantify the influence degree 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 completed is as follows: if the obtained nozzle continuity evaluation value is not greater than the reference nozzle continuity evaluation value in the database, the nozzle continuity evaluation is completed; if the obtained nozzle continuity evaluation value is greater than the reference nozzle continuity evaluation value in the database, an alarm instruction is sent.

[0030] In this embodiment, the alarm instruction is used to prompt a preset person to repair the nozzle according to the deviation of the obtained nozzle continuity evaluation value. The deviation of the nozzle continuity evaluation value represents the difference between the obtained nozzle continuity evaluation value and the reference nozzle continuity evaluation value in the database.

[0031] Specifically, the specific limit expression of the nozzle continuity evaluation value is: , In the formula, represents the nozzle continuity evaluation value of the nozzle of the dishwasher standard sample during the nozzle evaluation period, represents the inlet water pressure weight factor, represents the average inlet water pressure of the nozzle of the dishwasher standard sample during the nozzle evaluation period, represents the reference inlet water pressure, represents the water flow injection angle weight factor, represents the average water flow injection angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period, represents the reference water flow injection angle, represents the water flow diffusion angle weight factor, represents the average water flow diffusion angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period, represents the reference water flow diffusion angle.

[0032] The reference inlet water pressure is represented by the result of summing and averaging the historical inlet water pressures of the nozzles of the dishwasher standard sample in the database during the historical nozzle water spraying process. The reference water flow injection angle is represented by the result of summing and averaging the historical water flow injection angles of the nozzles of the dishwasher standard sample in the database during the historical nozzle water spraying process. The reference water flow diffusion angle is represented by the result of summing and averaging the historical water flow diffusion angles of the nozzles of the dishwasher standard sample in the database during the historical nozzle water spraying process.

[0033] The database stores preset weight factors closely related to the nozzle continuity evaluation value. A predefined mapping relationship is established between these weight factors and the corresponding average inlet water pressure, average water flow injection angle, and average water flow diffusion angle. It should be noted that this mapping is not randomly 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 the dishwasher standard sample, the real-time obtained average inlet water pressure, average water flow injection angle, and average water flow diffusion angle can be respectively input into the preset mapping relationship to accurately obtain the inlet water pressure weight factor, water flow injection angle weight factor, and water flow diffusion angle weight factor that match the nozzle continuity evaluation value.

[0034] Particularly importantly, to ensure the consistency and comparability of the evaluation, the value ranges of the inlet water pressure weight factor, the water flow injection angle weight factor, and the water flow diffusion angle weight factor in this example are all limited to between 0 and 1, and the sum of the three is 1.

[0035] The aforementioned database was established before the design of the physical performance analysis method for the dishwasher standard sample and is used to store various setting data. The database includes, but is not limited to, the reference nozzle continuity evaluation value, the reference inlet water pressure, the reference water flow injection angle, and the reference water flow diffusion angle. Various values therein are directly set by technicians. Among them, the setting basis of the reference nozzle continuity evaluation value can be determined according to 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 result of summing and averaging the historical nozzle continuity evaluation values of the nozzles of the dishwasher standard sample in the database during the historical nozzle water spraying process. In addition, various values in the database can be set and fine-tuned by technicians according to actual debugging.

[0036] It should be understood that during the nozzle continuity evaluation process, the nozzle continuity evaluation value increases with the increase of the average inlet water pressure deviation (i.e., ), the average water flow injection angle deviation (i.e., ), and the average water flow diffusion angle deviation (i.e., ). Among them, the increase of the inlet water pressure increases the speed of the water flow, which may cause the water flow to be too concentrated and affect the injection angle of the nozzle, resulting in an increase in the water flow injection angle. When the inlet water pressure increases, the water flow ejection speed increases, thereby increasing the diffusion angle; on the contrary, when the inlet water pressure decreases, the water flow diffusion angle decreases.

[0037] Compared with the prior art, this example comprehensively combines multiple key parameters and conducts a continuity evaluation, capturing the details of the nozzle working performance more comprehensively, avoiding the evaluation deviation that may be brought by a single dimension, helping to predict the possible faults of the nozzle earlier, and then taking preventive measures, thereby achieving an improvement in the accuracy of the water spraying continuity evaluation during the hydraulic performance prediction of the dishwasher standard sample, and effectively solving the problem of low accuracy of the water spraying continuity evaluation during the hydraulic performance prediction of the dishwasher standard sample existing in the prior art.

[0038] Further, the average fluid data includes average fluid hardness, average fluid viscosity, and average fluid density; the specific steps for obtaining the average fluid data are as follows: N1, obtain the average fluid hardness of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period, compare 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 instruction; N2, obtain the average fluid viscosity and average fluid density of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period.

[0039] In this embodiment, the system receives the fluid hardness adjustment instruction through a communication interface (such as RS-485, CAN bus) and displays it on the control interface of the dishwasher. The fluid hardness adjustment instruction is used to prompt the preset personnel to repair the pipeline of the dishwasher standard sample, so as to clean the pipeline of the dishwasher standard sample; the average fluid hardness is the result of summing and averaging the fluid hardness at each fluid evaluation moment during the fluid evaluation period, and the fluid hardness is monitored by a water quality hardness sensor installed at the water inlet corresponding to the dishwasher standard sample; the average fluid viscosity is the result of summing and averaging the fluid viscosity at each fluid evaluation moment during the fluid evaluation period, and the fluid viscosity is monitored by a fluid viscosity sensor installed at the water inlet corresponding to the dishwasher standard sample; the average fluid density is the result of summing and averaging the fluid density at each fluid evaluation moment during the fluid evaluation period, and the fluid density is monitored by a density sensor installed at the water inlet corresponding to the dishwasher standard sample.

[0040] By obtaining the average fluid hardness, it helps the preset personnel to discover and take measures in a timely manner to reduce the impact of water quality hardness on the dishwasher standard sample. By obtaining the average fluid viscosity, it helps the preset personnel to optimize the fluid dynamics design of the dishwasher standard sample in a timely manner, achieving energy consumption reduction and improved 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.

[0041] Further, the specific process of fluid continuity evaluation based on the obtained average fluid data is as follows: The deviation degree between the obtained average fluid hardness and the reference fluid hardness in the database is weighted by the fluid hardness weight factor to obtain the fluid hardness evaluation coefficient; The deviation degree between the obtained average fluid viscosity and the reference fluid viscosity in the database is weighted by the fluid viscosity weight factor to obtain the fluid viscosity evaluation coefficient; The deviation degree between the obtained average fluid density and the reference fluid density in the database is weighted by the fluid density weight factor to obtain the fluid density evaluation coefficient; The obtained 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 evaluation value is used to quantify the influence degree of the average fluid data on the fluid continuity of the dishwasher standard sample.

[0042] Among them, the specific limit expression of the fluid continuity evaluation value is: , In the formula, represents the fluid continuity evaluation value of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period, represents the fluid hardness weight factor, represents the average fluid hardness of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period, represents the reference fluid hardness, represents the fluid viscosity weight factor, represents the average fluid viscosity of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period, represents the reference fluid viscosity, represents the fluid density weight factor, represents the average fluid density of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period, represents the reference fluid density.

[0043] In this embodiment, the reference fluid hardness is represented by the result of summing and averaging the historical fluid hardness of the fluid of the dishwasher standard sample in the database during the historical nozzle water spraying process, the reference fluid viscosity is represented by the result of summing and averaging the historical fluid viscosity of the fluid of the dishwasher standard sample in the database during the historical nozzle water spraying process, and the reference fluid density is represented by the result of summing and averaging the historical fluid density of the fluid of the dishwasher standard sample in the database during the historical nozzle water spraying process.

[0044] The database stores preset weight factors that are closely related to the fluid continuity evaluation values. A predefined mapping relationship is established between these weight factors and the corresponding average fluid hardness, average fluid viscosity and average fluid density. It is worth noting that this mapping is not set arbitrarily. It can be a one-to-one correspondence or a many-to-one relationship. For example, in actual applications, when it is necessary to perform fluid continuity evaluation on dishwasher standard samples, the average fluid hardness, average fluid viscosity and average fluid density obtained in real time can be input into the preset mapping relationship respectively, so as to accurately obtain the fluid hardness weight factor, fluid viscosity weight factor and fluid density weight factor that match the fluid continuity evaluation value.

[0045] It is particularly important that in order to ensure the consistency and comparability of the evaluation, the value ranges of the fluid hardness weight factor, fluid viscosity weight factor, and fluid density weight factor in this example are all limited to between 0 and 1, and the sum of the three is 1.

[0046] It should be understood that during the fluid continuity evaluation process, the fluid continuity evaluation value changes with the average fluid hardness and the average fluid viscosity deviation (i.e. ), the average fluid density deviation (i.e. ) increases, among which, when the fluid hardness increases, the calcium and magnesium ion content in the 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, the increase in hardness may lead to an increase in dissolved minerals in the water, thereby affecting the overall density of the water.

[0047] Compared with the existing technology, this example provides a more accurate and intelligent fluid continuity assessment by combining multi-dimensional assessments of fluid hardness, viscosity and density, thereby avoiding the rough processing of traditional assessment 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 in long-term operation.

[0048] Furthermore, the specific process for determining whether the fluid continuity evaluation is completed is as follows: if the obtained fluid continuity evaluation value is not greater than the reference fluid continuity evaluation value in the database, the fluid continuity evaluation is completed; if the obtained fluid continuity evaluation value is greater than the reference fluid continuity evaluation value in the database, a jet height adjustment instruction is sent based on the obtained water flow control gain; the jet height adjustment instruction 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 of mapping the obtained fluid continuity evaluation value deviation input into the database.

[0049] In this embodiment, the adjusted gain represents the result obtained by multiplying the nozzle jet gain amount by the deviation of the obtained fluid continuity evaluation value. The deviation of the fluid continuity evaluation value represents the difference between the reference fluid continuity evaluation value and the obtained fluid continuity evaluation value. The reference fluid continuity evaluation value is represented by the result of summing and averaging the historical fluid continuity evaluation values of the fluid in the historical nozzle water spraying process in the database.

[0050] According to the calculated water flow control gain and input it into the database to map the corresponding jet height adjustment amount. Send the jet height adjustment amount to the controller corresponding to the mechanism for adjusting the spray arm height inside the dishwasher through a communication interface (such as RS-485, CAN bus), such as a motor, a lead screw, and a transmission belt. The controller makes the spray arm rise through lead screw transmission. At the same time, the system will monitor the change of the spray arm height in real time to ensure the adjustment accuracy and stability. If the fluid continuity evaluation value obtained again after one adjustment is greater than the reference fluid continuity evaluation value in the database, continue to make the spray arm rise until the fluid continuity evaluation value obtained again is not greater than the reference fluid continuity evaluation value in the database. The system will stop the rising action of the spray arm and give the result of the jet height adjustment to the user.

[0051] Compared with the prior art, by monitoring and evaluating the fluid continuity in real time and adjusting the jet height according to the evaluation result, the continuity and stability of the fluid in the dishwasher standard sample are significantly improved. By adopting intelligent dynamic regulation, the jet height can be automatically adjusted according to the fluid continuity evaluation value, which helps to adapt to the changes in different water qualities, tableware types, and cleaning requirements of the dishwasher standard sample.

[0052] 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 are as follows: 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, execute M2, otherwise send an impeller vibration amplitude adjustment instruction. M2, obtain 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.

[0053] In this embodiment, the impeller vibration amplitude adjustment instruction is used to prompt the preset personnel to repair 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 result of summing and averaging the impeller vibration amplitudes at each main water pump evaluation moment during the main water pump evaluation period. 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 result of summing and averaging the main water pump speeds at each main water pump evaluation moment during the fluid evaluation period. 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 result of summing and averaging the main water pump output powers at each main water pump evaluation moment during the main water pump evaluation period. Among them, 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 at both ends of the power line to ensure that the current and voltage values of the main water pump can be accurately measured.

[0054] In this example, by obtaining the average impeller vibration amplitude, the running stability and durability of the main water pump are evaluated. By monitoring the average impeller vibration amplitude, it is helpful to timely discover potential problems of the main water pump and issue an alarm, which not only improves the cleaning effect, but also improves the overall stability and reliability of the dishwasher standard sample.

[0055] Furthermore, the specific process of the main water pump continuity evaluation based on the obtained average main water pump data is as follows: the deviation degree between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database is weighted by the impeller vibration amplitude weight factor to obtain the impeller vibration amplitude evaluation coefficient; the deviation degree between the obtained average main water pump speed and the reference main water pump speed in the database is weighted by the main water pump speed weight factor to obtain the main water pump speed evaluation coefficient; the deviation degree between the obtained average main water pump output power and the reference main water pump output power in the database is weighted by the main water pump output power weight factor to obtain the main water pump output power evaluation coefficient; 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 main water pump continuity evaluation value is used to quantify the influence degree of the main water pump data on the main water pump continuity of the dishwasher standard sample.

[0056] Among them, the specific limit expression of the main water pump continuity evaluation value is: ; In the formula, represents the main water pump continuity evaluation value of the corresponding main water pump of the dishwasher standard sample during the main water pump evaluation period, represents the impeller vibration amplitude weight factor, It represents the average impeller vibration amplitude of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period. represents the reference impeller vibration amplitude, represents the weight factor of the main water pump speed, It represents the average main water pump speed of the main water pump corresponding to the dishwasher standard sample during the main water pump evaluation period. Indicates the reference main water pump speed, represents the output power weight factor of the main water pump, It represents 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. Indicates the reference main water pump output power.

[0057] In this embodiment, the reference impeller vibration amplitude is represented by summing and averaging the historical impeller vibration amplitudes of the main water pumps of the standard samples of dishwashers in the database during the historical main water pump working processes, the reference main water pump speed is represented by summing and averaging the historical main water pump speeds of the main water pumps of the standard samples of dishwashers in the database during the historical main water pump working processes, and the reference main water pump output power is represented by summing and averaging the historical main water pump output powers of the main water pumps of the standard samples of dishwashers in the database during the historical main water pump working processes.

[0058] The database stores preset weight factors that are closely related to the nozzle continuity evaluation value. A predefined mapping relationship is established between these weight factors and the corresponding average water inlet pressure, average water flow injection angle and average water flow diffusion angle. It is worth noting that this mapping is not set arbitrarily. It can be a one-to-one correspondence or a many-to-one relationship. For example, in actual applications, when it is necessary to perform nozzle continuity evaluation on a standard dishwasher sample, the real-time average water inlet pressure, average water flow injection angle and average water flow diffusion angle can be input into the preset mapping relationship respectively, so as to accurately obtain the water inlet pressure weight factor, water flow injection angle weight factor and water flow diffusion angle weight factor that match the nozzle continuity evaluation value.

[0059] It is particularly important that in order to ensure the consistency and comparability of the evaluation, the value ranges of the impeller vibration amplitude weight factor, the main water pump speed weight factor, and the main water pump output power weight factor in this example are all limited to between 0 and 1, and the sum of the three is 1.

[0060] It should be understood that during the main water pump continuity evaluation process, the nozzle continuity evaluation value changes with the average impeller vibration amplitude and the average main water pump speed deviation (i.e. ), average main water pump output power deviation (i.e. increases with the increase of (), among which, the vibration amplitude of the impeller increases with the increase of the main water pump speed. This is because the increase in speed will lead to an increase in the centrifugal force and hydraulic impact received by the impeller during rotation, thereby causing greater vibration. And according to the principle of fluid mechanics, the power of the main water pump is proportional to the cube of its speed, which will significantly increase the output power of the main water pump.

[0061] Compared with the prior art, this example comprehensively considers multiple key parameters (impeller vibration amplitude, speed, and output power), thereby providing a more refined and comprehensive assessment of the main water pump state, more flexibly evaluating different parameters of the main water pump, improving the accuracy of the assessment, reducing the probability of faults, extending the service life of the main water pump, and further realizing the improvement of the assessment accuracy of the water spray continuity during the hydraulic performance prediction of the dishwasher standard sample, effectively solving the problem of low assessment accuracy of the water spray continuity during the hydraulic performance prediction of the dishwasher standard sample in the prior art.

[0062] Further, the specific process for judging whether the main water pump continuity assessment is 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, 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, a main water pump speed adjustment instruction is sent based on the obtained speed control gain; the main water pump speed adjustment instruction is used to adjust the frequency of the motor variable frequency drive corresponding to the main water pump; the speed control gain represents the result obtained by adding the initial speed of the main water pump and 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.

[0063] 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, and the reference main water pump continuity assessment value is represented by the result of summing and averaging the historical main water pump continuity assessment values of the main water pump in the database during the historical operation of the main water pump.

[0064] The obtained rotational speed control gain is input into the database to map and obtain the corresponding main water pump rotational speed adjustment amount. At the same time, the received main water pump rotational speed adjustment instruction is sent to the motor frequency converter of the corresponding main water pump through a communication interface (such as RS-485, CAN bus). After the controller of the motor frequency converter receives the main water pump rotational speed adjustment instruction, the rotational speed of the main water pump is increased, thereby increasing the frequency of the motor frequency converter. During the process of increasing the frequency of the motor frequency converter, the system will monitor the change of the main water pump rotational speed in real time. If the re-obtained fluid continuity evaluation value after one adjustment is greater than the reference fluid continuity evaluation value in the database, the rotational speed of the main water pump will continue to be increased until the re-obtained fluid continuity evaluation value is not greater than the reference fluid continuity evaluation value in the database, and the system will automatically stop adjusting the rotational speed of the main water pump.

[0065] Compared with the prior art, the introduction of the rotational speed control gain and the rotational speed adjustment amount makes the adjustment process more precise, so as to realize the automatic evaluation of the continuity of the main water pump, and automatically send the rotational speed adjustment instruction according to the evaluation result, reducing manual intervention and improving the efficiency and accuracy of evaluation and adjustment. At the same time, the adjustment result is timely fed back to the user, facilitating the user to understand the state of the dishwasher standard sample, thereby reducing the failure rate and helping to reduce the user's maintenance cost and downtime.

[0066] As Figure 2 shown, it is a schematic structural diagram of the physical performance analysis system based on the dishwasher standard sample provided by the embodiment of the present application. The physical performance analysis system based on the dishwasher standard sample provided by the embodiment of the present application includes: a nozzle continuity evaluation module, a fluid continuity evaluation module, and a main water pump continuity evaluation module; wherein, the nozzle continuity evaluation module is used to evaluate the nozzle continuity based on the obtained average nozzle data during the hydraulic performance analysis of the dishwasher standard sample to determine whether the nozzle continuity evaluation is completed; the fluid continuity evaluation module is used to, if the nozzle continuity evaluation is completed, evaluate the fluid continuity based on the obtained average fluid data to determine whether the fluid continuity evaluation is completed; the main water pump continuity evaluation module is used to, if the fluid continuity evaluation is completed, evaluate the main water pump continuity based on the obtained average main water pump data to determine whether the main water pump continuity evaluation is completed.

[0067] In this embodiment, the prior art analyzes the performance of the dishwasher mostly relying on single-index detection (such as only measuring water pressure or the number of nozzles), while this example constructs a three-level linkage evaluation module of "nozzle → fluid → main water pump" to form a complete closed-loop analysis of the cleaning link. For example, the nozzle continuity evaluation module accurately calculates the water flow coverage uniformity through real-time data collection, and the fluid continuity evaluation module further analyzes the turbulence intensity and energy loss of the water flow path to ensure the cleaning efficiency. The main water pump continuity evaluation module finally verifies the durability and thermal efficiency of the circulating heat pump to achieve full-link performance verification.

[0068] In summary, in the embodiment of the present application, the nozzle continuity evaluation is performed through the obtained average nozzle data to determine whether the nozzle continuity evaluation is completed. If so, it is determined whether the fluid continuity evaluation is completed based on the result of the fluid continuity evaluation. If so, it is determined whether the water spraying continuity evaluation of the dishwasher standard sample is completed based on the result of the main water pump continuity evaluation, realizing a more accurate evaluation of the continuity of the nozzle, fluid, and main water pump. Furthermore, the accuracy of the water spraying continuity evaluation during the hydraulic performance prediction of the dishwasher standard sample is improved, effectively solving the problem of low accuracy of the water spraying continuity evaluation during the hydraulic performance prediction of the dishwasher standard sample in the prior art.

[0069] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented 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.

[0070] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0071] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device that implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0072] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus, so that a series of operational steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process or a plurality of processes and / or blocks Figure 1 one process or a plurality of processes and / or blocks Figure 1 or steps for implementing the functions specified in one block or a plurality of blocks.

[0073] Although the preferred embodiments of the present invention have been described, additional changes and modifications can be made by those skilled in the art once they learn of the basic inventive concept. Therefore, the appended claims are intended to be construed to cover the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0074] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A physical property analysis method based on a dishwasher standard sample, characterized in that, It includes the following steps: Step 1, during the hydraulic performance analysis of the dishwasher standard sample, nozzle continuity evaluation is performed based on the obtained average nozzle data to determine whether the nozzle continuity evaluation is completed; Step 2, if the nozzle continuity evaluation is completed, fluid continuity evaluation is performed based on the obtained average fluid data to determine whether the fluid continuity evaluation is completed; Step 3, if the fluid continuity evaluation is completed, main pump continuity evaluation is performed based on the obtained average main pump data to determine whether the main pump continuity evaluation is completed.

2. The physical property analysis method based on the dishwasher standard sample according to claim 1, wherein The average nozzle data includes average inlet water pressure, average water flow injection angle, and average water flow diffusion angle; 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 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, execute Q2, otherwise send an inlet water pressure adjustment instruction based on the obtained average inlet water pressure deviation. The inlet water pressure adjustment instruction indicates adjusting the inlet water pressure of the nozzle at the corresponding nozzle evaluation moment by adjusting the inlet valve; Q2, obtain the average water flow injection angle and average water flow diffusion angle of the nozzle of the dishwasher standard sample during the nozzle evaluation period.

3. The physical property analysis method based on the dishwasher standard sample according to claim 2, wherein The specific process for performing nozzle continuity evaluation based on the obtained average nozzle data is as follows: The deviation degree between the obtained average inlet water pressure and the reference inlet water pressure in the database is weighted by the inlet water pressure weight factor to obtain the inlet water pressure evaluation coefficient; The deviation degree between the obtained average water flow injection angle and the reference water flow injection angle in the database is weighted by the water flow injection angle weight factor to obtain the water flow injection angle evaluation coefficient; The deviation degree between the obtained average water flow diffusion angle and the reference water flow diffusion angle in the database is weighted by the water flow diffusion angle weight factor to obtain the water flow diffusion angle evaluation coefficient; The obtained inlet water pressure evaluation coefficient, water flow injection angle evaluation coefficient, and water flow diffusion angle evaluation coefficient are coupled to obtain the nozzle continuity evaluation value; The nozzle continuity evaluation value is used to quantify the influence degree 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 completed is as follows: If the obtained nozzle continuity evaluation value is not greater than the reference nozzle continuity evaluation value in the database, the nozzle continuity evaluation is completed; If the obtained nozzle continuity evaluation value is greater than the reference nozzle continuity evaluation value in the database, an alarm instruction is sent.

4. The physical property analysis method based on the dishwasher standard sample according to claim 1, characterized in that 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. Obtain the average fluid hardness of the fluid in the nozzle pipeline 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 instruction, which is used to prompt the preset personnel to repair the pipeline of the dishwasher standard sample. N2. Obtain the average fluid viscosity and average fluid density of the fluid in the nozzle pipeline corresponding to the dishwasher standard sample during the fluid evaluation period.

5. The physical property analysis method based on the dishwasher standard sample according to claim 4, wherein, The specific process of fluid continuity evaluation based on the obtained average fluid data is as follows: Perform a weighting process on the deviation degree between the obtained average fluid hardness and the reference fluid hardness in the database through a fluid hardness weighting factor to obtain a fluid hardness evaluation coefficient. Perform a weighting process on the deviation degree between the obtained average fluid viscosity and the reference fluid viscosity in the database through a fluid viscosity weighting factor to obtain a fluid viscosity evaluation coefficient. Perform a weighting process on the deviation degree between the obtained average fluid density and the reference fluid density in the database through a fluid density weighting factor to obtain a fluid density evaluation coefficient. Couple the obtained fluid hardness evaluation coefficient, fluid viscosity evaluation coefficient, and fluid density evaluation coefficient to obtain a fluid continuity evaluation value. The fluid continuity evaluation value is used to quantify the influence degree of the average fluid data on the fluid continuity of the dishwasher standard sample.

6. The physical property analysis method based on the dishwasher standard sample according to claim 5, wherein The specific process of determining whether the fluid continuity evaluation is completed is as follows: If the obtained fluid continuity evaluation value is not greater than the reference fluid continuity evaluation value in the database, then the fluid continuity evaluation is completed. If the obtained fluid continuity evaluation value is greater than the reference fluid continuity evaluation value in the database, then send a jet height adjustment instruction based on the obtained water flow control gain. The jet height adjustment instruction 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 amount and the adjustment gain. The nozzle jet gain amount represents the result obtained by mapping the deviation of the obtained fluid continuity evaluation value into the database.

7. The physical property analysis method based on the dishwasher standard sample as described in claim 1, characterized in that, The average main pump data includes the average impeller vibration amplitude, average main pump speed, and average main pump output power. The specific steps for obtaining the average main pump data are as follows: M1. Obtain the average impeller vibration amplitude of the main pump corresponding to the dishwasher standard sample during the main 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 instruction, which is used to prompt the preset personnel to repair the main pump. M2. Obtain the average main pump speed and average main pump output power of the main pump corresponding to the dishwasher standard sample during the main pump evaluation period.

8. The physical property analysis method based on the dishwasher standard sample according to claim 7, wherein The specific process of main pump continuity evaluation based on the obtained average main pump data is as follows: The deviation degree between the obtained average impeller vibration amplitude and the reference impeller vibration amplitude in the database is weighted by the impeller vibration amplitude weight factor to obtain the impeller vibration amplitude evaluation coefficient; The deviation degree between the obtained average main water pump speed and the reference main water pump speed in the database is weighted by the main water pump speed weight factor to obtain the main water pump speed evaluation coefficient; The deviation degree between the obtained average main water pump output power and the reference main water pump output power in the database is weighted by the main water pump output power weight factor to obtain the main water pump output power evaluation coefficient; 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 main water pump continuity evaluation value is used to quantify the influence degree of the main water pump data on the main water pump continuity of the dishwasher standard sample.

9. The physical property analysis method based on the dishwasher standard sample according to claim 8, characterized in that The specific process for judging whether the main water pump continuity evaluation is completed is as follows: If the obtained main water pump continuity evaluation value is not greater than the reference main water pump continuity evaluation value in the database, the main water pump continuity evaluation is completed; If the obtained main water pump continuity evaluation value is greater than the reference main water pump continuity evaluation value in the database, a main water pump speed adjustment instruction is sent based on the obtained speed control gain; The main water pump speed adjustment instruction is used to adjust the frequency of the variable frequency drive of the motor corresponding to the main water pump; The speed control gain represents the result of coupling the initial speed of the main water pump and the speed adjustment amount; The speed adjustment amount represents the result obtained by mapping the deviation of the obtained main water pump continuity evaluation value into the database.

10. A physical performance analysis system based on a dishwasher standard sample, characterized in that, Including: Nozzle continuity evaluation module, fluid continuity evaluation module, main water pump continuity evaluation module; Among them, the nozzle continuity evaluation module is used to evaluate the nozzle continuity based on the obtained average nozzle data during the hydraulic performance analysis of the dishwasher standard sample to judge whether the nozzle continuity evaluation is completed; The fluid continuity evaluation module is used to, if the nozzle continuity evaluation is completed, evaluate the fluid continuity based on the obtained average fluid data to judge whether the fluid continuity evaluation is completed; The main water pump continuity evaluation module is used to, if the fluid continuity evaluation is completed, evaluate the main water pump continuity based on the obtained average main water pump data to judge whether the main water pump continuity evaluation is completed.

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