Comprehensive energy efficiency and water efficiency testing device and method for dish washing machine

Abstract

The invention provides a dishwasher comprehensive energy efficiency and water efficiency testing device and method.The dishwasher comprehensive energy efficiency and water efficiency testing device comprises a base, a dishwasher body and a visual monitoring unit, an electric control cabinet, a testing cabin and a constant-temperature water tank are sequentially installed on the base from right to left, the dishwasher body is arranged in the testing cabin, and the water inlet end of the dishwasher body is connected with a water inlet pipe; the drainage end of the dish-washing machine body is connected with a drainage pipe, sensor mounting plates are fixed to the upper portions of the inner walls of the ends, close to the dish-washing machine body, of the water inlet pipe and the drainage pipe, and a flow sensor, a temperature sensor and a pressure sensor are sequentially mounted below the two sensor mounting plates from left to right. Compared with the prior art, real water temperature and pressure are simulated through a controllable pipeline, the problems that an original testing device is dispersed in function and cannot simulate real and complex working conditions are solved, and the testing accuracy and the working condition coverage degree of the testing device are improved.

Description

Technical Field

[0001] This invention relates to a comprehensive energy efficiency and water efficiency testing device and method for dishwashers, belonging to the field of household appliance technology. Background Technology

[0002] As one of the core appliances in modern kitchens, the energy and water efficiency of dishwashers directly affects users' long-term operating costs and environmental benefits. With increasing global energy and water scarcity, various countries have successively introduced stringent energy and water efficiency standards (such as China's water efficiency labeling system and the EU's ERP directive). Therefore, accurate and reliable testing and evaluation of dishwasher's overall performance is crucial for product development, quality certification, and market access.

[0003] Currently, energy efficiency and water efficiency testing of dishwashers mainly relies on standardized laboratory testing methods. Traditional testing devices and methods typically have the following limitations: 1. Limited testing conditions, detached from actual use: Standard tests use fixed contamination loads and preset programs, which cannot simulate the diverse loads, personalized program selections, and seasonal water temperature changes encountered in actual user use, resulting in insufficient representativeness of test results; 2. Subjective and delayed cleanliness assessment: Current methods rely on manual visual inspection after testing to determine cleanliness, leading to subjective results, inconsistent judgment standards, and the inability to obtain real-time data on cleanliness changes during washing, resulting in a disconnect between cleaning effect and resource consumption over time. There is an urgent need for a comprehensive energy efficiency and water efficiency testing device and method for dishwashers to solve these problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a comprehensive energy efficiency and water efficiency testing device and method for dishwashers, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a comprehensive energy efficiency and water efficiency testing device and method for a dishwasher, comprising a base, a dishwasher body, and a visual monitoring unit. An electrical control cabinet, a test chamber, and a constant temperature water tank are sequentially installed on the top of the base from right to left. The dishwasher body is housed inside the test chamber. A water inlet pipe is connected to the water inlet end of the dishwasher body, and a drain pipe is connected to the drain end of the dishwasher body. Sensor mounting plates are fixed to the upper inner wall of both the water inlet pipe and the drain pipe near the dishwasher body. A flow sensor, a temperature sensor, and a pressure sensor are sequentially installed below the two sensor mounting plates from left to right. The electrical control cabinet houses an industrial computer, a data acquisition unit, and a PLC controller. The visual monitoring unit includes an industrial camera, an electric slide rail, and an environmental sensor. A ring of LED lights is arranged around the industrial camera. A camera mounting base is movably mounted on the electric slide rail, and the industrial camera is mounted below the camera mounting base. The environmental sensor and the electric slide rail are both installed inside the test chamber.

[0006] Furthermore, a drain valve is installed at the drain end of the constant temperature water tank, and an inlet valve is installed at the inlet end of the constant temperature water tank. A drain connection pipe is provided on the drain valve, and an inlet connection pipe is provided on the inlet valve. An inlet auxiliary pump is connected between the inlet connection pipe and the inlet pipe, and a drain auxiliary pump is connected between the drain connection pipe and the drain pipe.

[0007] Furthermore, a dish photography window is provided in the center of the lid above the dishwasher body, and the dish photography window is located directly below the shooting end of the industrial camera.

[0008] Furthermore, the industrial computer body is electrically connected to the industrial camera, the data acquisition unit is electrically connected to the environmental sensor, flow sensor, temperature sensor and pressure sensor, and the PLC controller is electrically connected to the inlet valve, drain valve, inlet auxiliary pump and drain auxiliary pump.

[0009] Furthermore, an observation door is hinged to the front of the test chamber, and a main control panel and an industrial computer display are installed on the front of the observation door. Both the main control panel and the industrial computer display are electrically connected to the industrial computer body.

[0010] Furthermore, the test chamber is made of thermal insulation and soundproofing material, the observation door is equipped with a transparent observation window, and the temperature adjustment range of the constant temperature water tank is 5℃-45℃.

[0011] Furthermore, the flow sensor is an ultrasonic flow sensor, and the temperature sensor is a platinum resistance temperature sensor.

[0012] Furthermore, the electrical control cabinet is equipped with a power analyzer for measuring the real-time power and cumulative power consumption of the dishwasher body.

[0013] Furthermore, the dishwasher body contains a dish rack for securing standardized test loads.

[0014] Furthermore, the inlet and outlet pipes are made of high-temperature and corrosion-resistant materials.

[0015] Furthermore, a method for testing the overall energy efficiency and water efficiency of a dishwasher includes the following steps: Step 1: First, prepare and initially set up the device, check that all components are intact, fix the standardized contamination load on the dedicated dish rack, and then place it inside the dishwasher body to be tested. Close the observation door and ensure that the dish viewing window on the dishwasher body lid is directly facing the center of the lens of the industrial camera above.

[0016] Step Two: Next, perform pipe connections and sensor verification: Check that the high-temperature and corrosion-resistant inlet and drain pipes are securely connected to the inlet and drain ends of the dishwasher body, respectively. Confirm that the ultrasonic flow sensor, platinum resistance temperature sensor, and pressure sensor installed on the sensor mounting plates inside the inlet and drain pipes are securely installed and unobstructed. Confirm that the inlet auxiliary pump between the inlet extension pipe and the inlet pipe, and the drain auxiliary pump between the drain extension pipe and the drain pipe are correctly connected to the system. Also, check that the inlet valve and drain valve on the thermostatic water tank are in the initial closed state.

[0017] Step 3: After completing the preparations, start the electrical system and set the parameters: Turn on the electrical control cabinet, start the internal industrial computer, data acquisition unit and PLC controller, and set the parameters for this test through the main control panel or industrial computer display installed on the observation door, including selecting the dishwasher washing program, setting the inlet water temperature of the constant temperature water tank, configuring the data sampling frequency of each sensor and the image acquisition interval of the industrial camera. At the same time, start the power analyzer in the electrical control cabinet to calibrate the electrical measurement unit.

[0018] Step 4: Then start the vision and environmental monitoring system: turn on the industrial camera and its surrounding ring LED light, adjust the focus to ensure that the load on the dish rack can be clearly captured through the dish shooting window, start the electric slide rail installed inside the test chamber and set its movement path so that the industrial camera installed below the camera mount can cover the entire shooting area of ​​the load. At the same time, start the environmental sensor, which is also located inside the test chamber, to monitor the ambient temperature and humidity during the test.

[0019] Step 5: Execute the automated testing process: The PLC controller issues a command to open the water inlet valve and start the auxiliary water inlet pump, supplying constant-temperature water to the dishwasher. At this time, the data acquisition unit begins to simultaneously collect multiple data streams, including the flow rate in the water inlet and drain pipes, as well as the real-time operating power and cumulative power consumption of the dishwasher measured by the power analyzer. Throughout the washing process, the industrial camera automatically captures images of the dishes at preset intervals, and the image data is transmitted in real time to the industrial control computer for intelligent cleanliness analysis. After the dishwasher completes the washing cycle, the PLC controller then controls the opening of the drain valve and starts the auxiliary drain pump to discharge the wastewater. The beneficial effects of the present invention are as follows: The dishwasher comprehensive energy efficiency and water efficiency testing device and method of the present invention, because the present invention adds a sensor mounting plate, flow sensor, temperature sensor, pressure sensor, constant temperature water tank, water inlet valve, water outlet valve, water inlet auxiliary pump and water outlet auxiliary pump, integrates multiple parameter sensors such as flow, temperature and pressure into the water inlet pipe and the water outlet pipe, and simulates real water temperature and pressure through controllable pipelines, solves the problem of the original testing device having scattered functions and being unable to simulate real complex working conditions, and improves the testing accuracy and working condition coverage of the present invention.

[0020] Because this invention adds a dish photography window, an industrial camera, a ring LED light, a data acquisition unit, and an industrial control computer, this design can capture images of dishes online through the industrial camera, and the industrial control computer can analyze the cleanliness in real time. It can also dynamically correlate the energy consumption and water consumption data synchronized with the data acquisition unit, thus solving the problem that the original method relies on subjective and lagging endpoint assessment and cannot perform process performance diagnosis. This improves the objectivity of the assessment, process insight, and optimization guidance value of this invention. Attached Figure Description

[0021] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a first-angle three-dimensional structural diagram of the overall energy efficiency and water efficiency testing device and method for a dishwasher according to the present invention. Figure 2 This is a second-angle three-dimensional structural diagram of the overall energy efficiency and water efficiency testing device and method for a dishwasher according to the present invention. Figure 3 This is a schematic diagram of the electrical control cabinet and the interior of the test chamber of the dishwasher comprehensive energy efficiency and water efficiency testing device and method of the present invention. Figure 4 This is a three-dimensional structural diagram of the electrical control cabinet and test chamber of the dishwasher comprehensive energy efficiency and water efficiency testing device and method of the present invention. Figure 5 This invention relates to a comprehensive energy efficiency and water efficiency testing device and method for dishwashers. Figure 3 Enlarged schematic diagram of the structure at point A; Figure 6 This is a three-dimensional structural diagram of the internal structure of the dishwasher body of the dishwasher according to the present invention, which is a comprehensive energy efficiency and water efficiency testing device and method for dishwashers. Figure 7 This is a schematic cross-sectional view of the inlet and outlet pipes of the dishwasher comprehensive energy efficiency and water efficiency testing device and method of the present invention. Figure 8 This is a logic block diagram of the control and data analysis system of a dishwasher comprehensive energy efficiency and water efficiency testing device and method according to the present invention; Figure 9 This is a schematic diagram of the electrical measurement unit of the dishwasher comprehensive energy efficiency and water efficiency testing device and method of the present invention; Figure 10 This is a synchronous data acquisition bus connection diagram of a dishwasher comprehensive energy efficiency and water efficiency testing device and method according to the present invention; Figure 11 This is a graph showing the relationship between dishwasher energy efficiency, water efficiency, and cleanliness, provided by the present invention, which relates to a comprehensive energy efficiency and water efficiency testing device and method for dishwashers.

[0022] In the diagram: 1-Base, 2-Electrical control cabinet, 3-Test chamber, 4-Observation door, 5-Main control panel, 6-Industrial computer display, 7-Constant temperature water tank, 8-Drainage extension pipe, 9-Drain valve, 10-Inlet extension pipe, 11-Inlet valve, 12-Drainage auxiliary pump, 13-Inlet auxiliary pump, 14-Inlet pipe, 15-Drain pipe, 16-Dishwasher body, 17-Dish display window, 18-Industrial computer body, 19-Data acquisition unit, 20-Camera mounting base, 21-Industrial camera, 22-Power analyzer, 23-PLC controller, 24-Ring LED light, 25-Dish rack, 26-Sensor mounting plate, 27-Flow sensor, 28-Temperature sensor, 29-Pressure sensor, 30-Electric slide rail, 31-Environmental sensor. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1-11This invention provides a technical solution: a comprehensive energy efficiency and water efficiency testing device and method for a dishwasher, comprising a base 1, a dishwasher body 16, and a visual monitoring unit. An electrical control cabinet 2, a test chamber 3, and a constant temperature water tank 7 are sequentially installed on the top of the base 1 from right to left. The dishwasher body 16 is housed inside the test chamber 3. A water inlet pipe 14 is connected to the water inlet end of the dishwasher body 16, and a drain pipe 15 is connected to the drain end of the dishwasher body 16. Sensor mounting plates 26 are fixed to the upper inner wall of both the water inlet pipe 14 and the drain pipe 15 near the dishwasher body 16. Two sensors are mounted... Below the plate 26, from left to right, are installed a flow sensor 27, a temperature sensor 28, and a pressure sensor 29. The electrical control cabinet 2 contains an industrial computer 18, a data acquisition unit 19, and a PLC controller 23. The visual monitoring unit includes an industrial camera 21, an electric slide rail 30, and an environmental sensor 31. The industrial camera 21 is surrounded by a ring of LED lights 24. A camera mounting base 20 is movably mounted on the electric slide rail 30. The industrial camera 21 is installed below the camera mounting base 20. The environmental sensor 31 and the electric slide rail 30 are both installed inside the test chamber 3 at the top.

[0025] As an embodiment of the present invention: a drain valve 9 is installed at the drain end of the constant temperature water tank 7, and an inlet valve 11 is installed at the inlet end of the constant temperature water tank 7. A drain extension pipe 8 is provided on the drain valve 9, and an inlet extension pipe 10 is provided on the inlet valve 11. An inlet auxiliary pump 13 is connected between the inlet extension pipe 10 and the inlet pipe 14, and a drain auxiliary pump 12 is connected between the drain extension pipe 8 and the drain pipe 15. By opening and closing the inlet valve 11 and the drain valve 9, the water inlet and drain stages of the test can be precisely controlled to simulate the actual working cycle of the dishwasher, and the pressure and flow are stable. The introduction of the inlet auxiliary pump 13 and the drain auxiliary pump 12 ensures that the water flow entering the dishwasher body 16 has a stable and adjustable pressure and flow, avoiding interference to the test results caused by fluctuations in municipal water pressure, and improving the repeatability and accuracy of the test. The dishwasher body 16 has a dish viewing window 17 in the middle of the lid. The dish viewing window 17 is located directly below the shooting end of the industrial camera 21. The dish viewing window 17 provides a direct observation channel for the industrial camera 21, so that the camera can take real-time and continuous pictures of the load on the dish rack 25 without interfering with the washing process.

[0026] The industrial computer 18 is electrically connected to the industrial camera 21, the data acquisition unit 19 is electrically connected to the environmental sensor 31, the flow sensor 27, the temperature sensor 28, and the pressure sensor 29, and the PLC controller 23 is electrically connected to the inlet valve 11, the drain valve 9, the inlet auxiliary pump 13, and the drain auxiliary pump 12. The data acquisition unit 19 concentrates and synchronously acquires the signals from the dispersed sensors (flow sensor 27, temperature sensor 28, pressure sensor 29, and environmental sensor 31), solving the problems of data asynchrony and large system errors in traditional testing, and providing an accurate time base for analyzing the dynamic correlation between energy consumption and water consumption. The PLC controller 23, as the execution unit, reliably receives instructions from the industrial computer 18 and performs precise sequential and logical control on the pumps 12 and 13 and the valves 9 and 11, realizing the automation of the testing process.

[0027] As an embodiment of the present invention: an observation door 4 is hinged to the front of the test chamber 3. A main control panel 5 and an industrial computer display 6 are installed on the front of the observation door 4. Both the main control panel 5 and the industrial computer display 6 are electrically connected to the industrial computer body 18. The main control panel 5 and the industrial computer display 6 are centrally arranged on the observation door 4, which facilitates the operator to complete parameter setting, process initiation, status monitoring and emergency intervention in the same position. The industrial computer display 6 can display in real time. Figure 11 The dynamic curves, cleanliness images, and key data displayed make the testing process transparent, facilitating immediate judgment and recording. The hinged observation door 4 facilitates the loading and unloading of the test load, and its observation window allows for manual observation. The test chamber 3 is made of thermal and sound insulation materials, and the observation door 4 has a transparent observation window. The temperature regulation range of the constant temperature water tank 7 is 5℃-45℃. The thermal and sound insulation test chamber 3 isolates external environmental fluctuations (such as temperature changes and noise interference), creating a stable and repeatable benchmark environment for testing and ensuring data comparability. The wide temperature regulation range of the constant temperature water tank 7 (5℃-45℃) allows the device to simulate different inlet water temperature conditions from low winter temperatures to high summer temperatures, evaluating the dishwasher's real-world performance in different seasons and providing more comprehensive test coverage.

[0028] As an embodiment of the present invention: the flow sensor 27 is an ultrasonic flow sensor, and the temperature sensor 28 is a platinum resistance temperature sensor. The ultrasonic flow sensor 27 has the advantages of high measurement accuracy, no moving parts, and no interference with the flow field, making it very suitable for accurately measuring transient and cumulative water volume. The platinum resistance temperature sensor 28 is the standard for industrial temperature measurement, featuring high accuracy, good stability, and excellent linearity. The electrical control cabinet 2 is equipped with a power analyzer 22 for measuring the real-time power and cumulative power consumption of the dishwasher body 16. The power analyzer 22 can accurately measure instantaneous power, voltage, current, power factor, and cumulative energy, providing raw data for calculating the energy efficiency index and performing dynamic power analysis. Inside the dishwasher body 16 is a dish rack 25 for fixing standardized test loads. The dedicated dish rack 25 ensures that the position, orientation, and spacing of the contaminated load (such as a standard stained dish) remain constant during each test, which is the physical basis for obtaining comparable and repeatable test results. The inlet pipe 14 and the drain pipe 15 are made of high-temperature and corrosion-resistant materials. The high-temperature and corrosion-resistant materials ensure the safety and reliability of the pipeline system in long-term use and avoid leakage or pollution caused by material aging and corrosion.

[0029] As an embodiment of the present invention: First, the device is prepared and initially set up: check that all components of the device are complete, confirm that the electrical control cabinet 2, test chamber 3 and constant temperature water tank 7 on the base 1 are fixed, fill the constant temperature water tank 7 with water to the specified water level, and set the target water temperature (within the range of 5°C to 45°C) to simulate the actual inlet water temperature conditions, open the observation door 4 on the front side of the test chamber 3, fix the standardized contamination load on the dedicated dish rack 25, and then put it into the dishwasher body 16 to be tested, close the observation door 4, and ensure that the dish shooting window 17 on the lid of the dishwasher body 16 is directly facing the center of the lens of the industrial camera 21 above.

[0030] Next, the pipe connections and sensors are checked: Check whether the high-temperature and corrosion-resistant inlet pipe 14 and drain pipe 15 are securely connected to the inlet and drain ends of the dishwasher body 16, respectively. Confirm that the ultrasonic flow sensor 27, platinum resistance temperature sensor 28, and pressure sensor 29 installed on the sensor mounting plate 26 inside the inlet pipe 14 and drain pipe 15 are securely installed and unobstructed. Confirm that the inlet auxiliary pump 13 between the inlet extension pipe 10 and the inlet pipe 14, and the drain auxiliary pump 12 between the drain extension pipe 8 and the drain pipe 15 are correctly connected to the system. Check that the inlet valve 11 and the drain valve 9 on the constant temperature water tank 7 are in the initial closed state.

[0031] After completing the preparations, start the electrical system and set the parameters: turn on the electrical control cabinet 2, start the internal industrial computer 18, data acquisition unit 19 and PLC controller 23, and set the parameters for this test through the main control panel 5 installed on the observation door 4 or the industrial computer display 6, including selecting the dishwasher washing program, setting the inlet water temperature of the constant temperature water tank 7, configuring the data sampling frequency of each sensor and the image acquisition interval of the industrial camera 21. At the same time, start the power analyzer 22 in the electrical control cabinet 2 to calibrate the electrical measurement unit.

[0032] Then, the vision and environmental monitoring system is activated: the industrial camera 21 and its surrounding ring LED light 24 are turned on, the focus is adjusted to ensure that the load on the dish rack 25 can be clearly photographed through the dish shooting window 17, the electric slide rail 30 installed inside the test chamber 3 is activated, its movement path is set so that the industrial camera 21 installed below the camera mount 20 can cover the entire shooting area of ​​the load, and at the same time, the environmental sensor 31, which is also located inside the test chamber 3, is activated to monitor the ambient temperature and humidity during the test.

[0033] Once everything is ready, the automated testing process is executed: the PLC controller 23 issues a command to open the water inlet valve 11 and start the water inlet auxiliary pump 13 to supply constant temperature water to the dishwasher body 16. At this time, the data acquisition unit 19 starts to collect multiple data simultaneously: including the flow rate in the water inlet and drain pipes (from the ultrasonic flow sensor 27), water temperature (from the platinum resistance temperature sensor 28), water pressure (from the pressure sensor 29), and the real-time operating power and cumulative power consumption of the dishwasher body 16 measured by the power analyzer 22. During the entire washing process, the industrial camera 21 automatically takes pictures of the dishes at preset intervals, and the image data is transmitted to the industrial control computer body 18 in real time for intelligent cleanliness analysis. After the dishwasher completes the washing program, the PLC controller 23 controls the opening of the drain valve 9 and starts the drain auxiliary pump 12 to discharge the wastewater.

[0034] During the test, the system performs data synchronization and real-time analysis: the industrial control computer 18 synchronizes and correlates the real-time cleanliness score obtained from image analysis with the energy efficiency and water efficiency data collected by the data acquisition unit 19 using precise timestamps. The results are displayed in real-time on the industrial control computer display 6, forming a dynamic curve (e.g., ...). Figure 11 As shown in the figure, the relationship between cleanliness, energy consumption and water consumption during the washing process is intuitively displayed. All synchronous data is saved to the industrial control computer storage unit for subsequent generation of detailed test reports.

[0035] After the test, perform a reset procedure: shut down the dishwasher body 16, industrial camera 21, all sensors, and water pump valve system; open the observation door 4; remove the dish rack 25 and its load; clean the inside of the test chamber 3; drain all residual water from the constant temperature water tank 7 and pipelines; and finally, turn off the main power supply to the electrical control cabinet 2. Check the status of each sensor and actuator to ensure the device is back to a ready state, preparing for the next test.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A comprehensive energy efficiency and water efficiency testing device for a dishwasher, comprising a base (1), a dishwasher body (16), and a visual monitoring unit, characterized in that: An electrical control cabinet (2), a test chamber (3), and a constant temperature water tank (7) are installed on the base (1) from right to left. The test chamber (3) contains a dishwasher body (16). The inlet end of the dishwasher body (16) is connected to an inlet pipe (14), and the outlet end of the dishwasher body (16) is connected to a drain pipe (15). Sensor mounting plates (26) are fixed on the upper inner wall of the inlet pipe (14) and the outlet pipe (15) near the dishwasher body (16). A flow sensor (27), a temperature sensor (28), and a pressure sensor (29) are installed on the two sensor mounting plates (26) from left to right. The electrical control cabinet (2) is equipped with an industrial computer body (18), a data acquisition unit (19) and a PLC controller (23). The visual monitoring unit includes an industrial camera (21), an electric slide rail (30) and an environmental sensor (31). The industrial camera (21) is surrounded by a ring LED light (24). The camera mounting base (20) is movably installed on the electric slide rail (30). The industrial camera (21) is installed below the camera mounting base (20). The environmental sensor (31) and the electric slide rail (30) are both installed inside the test chamber (3) above.

2. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The constant temperature water tank (7) is equipped with a drain valve (9) at the drain end and an inlet valve (11) at the inlet end. The drain valve (9) is equipped with a drain connection pipe (8) and the inlet valve (11) is equipped with an inlet connection pipe (10). An inlet auxiliary pump (13) is connected between the inlet connection pipe (10) and the inlet pipe (14). An outlet auxiliary pump (12) is connected between the drain connection pipe (8) and the drain pipe (15).

3. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The dishwasher body (16) has a dish camera window (17) in the middle of the cover, which is located directly below the camera end of the industrial camera (21).

4. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The industrial computer body (18) is electrically connected to the industrial camera (21), the data acquisition unit (19) is electrically connected to the environmental sensor (31), the flow sensor (27), the temperature sensor (28) and the pressure sensor (29), and the PLC controller (23) is electrically connected to the water inlet valve (11), the water outlet valve (9), the water inlet auxiliary pump (13) and the water outlet auxiliary pump (12).

5. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The test chamber (3) is hinged to the front with an observation door (4). The observation door (4) is equipped with a main control panel (5) and an industrial computer display (6). The main control panel (5) and the industrial computer display (6) are both electrically connected to the industrial computer body (18).

6. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The test chamber (3) is made of heat-insulating and sound-insulating material, the observation door (4) is provided with a transparent observation window, and the temperature adjustment range of the constant temperature water tank (7) is 5℃-45℃.

7. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The flow sensor (27) is an ultrasonic flow sensor, and the temperature sensor (28) is a platinum resistance temperature sensor.

8. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The electrical control cabinet (2) is equipped with a power analyzer (22) for measuring the real-time power and cumulative power consumption of the dishwasher body (16), and the dishwasher body (16) is equipped with a dish rack (25) for fixing standardized test loads.

9. The dishwasher comprehensive energy efficiency and water efficiency testing device according to claim 1, characterized in that: The inlet pipe (14) and outlet pipe (15) are made of high-temperature and corrosion-resistant materials.

10. A method for testing the comprehensive energy efficiency and water efficiency of a dishwasher, characterized in that: Includes the following steps: Step 1: First, prepare and initially set up the device, check that all parts of the device are intact, fix the standardized contamination load on the dedicated dish rack (25), and then place it inside the dishwasher body (16) to be tested. Close the observation door (4) and ensure that the dish shooting window (17) on the lid of the dishwasher body (16) is directly facing the center of the lens of the industrial camera (21) above. Step 2: Next, perform pipeline connection and sensor confirmation: Check whether the high-temperature and corrosion-resistant inlet pipe (14) and drain pipe (15) are securely connected to the inlet and drain ends of the dishwasher body (16), respectively. Confirm that the ultrasonic flow sensor (27), platinum resistance temperature sensor (28), and pressure sensor (29) installed on the sensor mounting plate (26) inside the inlet pipe (14) and drain pipe (15) are securely installed and unobstructed. Confirm that the inlet auxiliary pump (13) between the inlet extension pipe (10) and the inlet pipe (14), and the drain auxiliary pump (12) between the drain extension pipe (8) and the drain pipe (15) are correctly connected to the system. Check that the inlet valve (11) and drain valve (9) on the constant temperature water tank (7) are in the initial closed state. Step 3: After completing the preparation work, start the electrical system and set the parameters: turn on the electrical control cabinet (2), start the internal industrial computer (18), data acquisition unit (19) and PLC controller (23), and set the parameters for this test through the main control panel (5) installed on the observation door (4) or the industrial computer display (6), including selecting the washing program of the dishwasher, setting the inlet water temperature of the constant temperature water tank (7), configuring the data sampling frequency of each sensor and the image acquisition interval of the industrial camera (21), and at the same time, start the power analyzer (22) in the electrical control cabinet (2) to calibrate the electrical measurement unit; Step 4: Then start the vision and environmental monitoring system: turn on the industrial camera (21) and its surrounding ring LED light (24), adjust the focus to ensure that the load on the dish rack (25) can be clearly photographed through the dish shooting window (17), start the electric slide rail (30) installed inside the test chamber (3) and set its movement path so that the industrial camera (21) installed below the camera mount (20) can cover the entire shooting area of ​​the load. At the same time, start the environmental sensor (31) located inside the test chamber (3) to monitor the ambient temperature and humidity during the test. Step 5: Execute the automated test process: The PLC controller (23) issues an instruction to open the water inlet valve (11) and start the water inlet auxiliary pump (13) to supply constant temperature water to the dishwasher body (16). At this time, the data acquisition unit (19) starts to collect multiple data simultaneously, including the flow rate in the water inlet and drain pipes, as well as the real-time working power and cumulative power consumption of the dishwasher body (16) measured by the power analyzer (22). During the entire washing process, the industrial camera (21) automatically takes pictures of the dishes at preset intervals. The image data is transmitted to the industrial control computer body (18) in real time for intelligent cleanliness analysis. After the dishwasher completes the washing program, the PLC controller (23) controls the opening of the drain valve (9) and starts the drain auxiliary pump (12) to discharge the wastewater.

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