Dishwasher control method, device, medium and dishwasher

Abstract

The present invention provides a dishwasher control method, device, medium, and dishwasher. The method comprises the following steps: after water enters the dishwasher, a turbidity sensor is used to detect a first turbidity value of the water in the dishwasher; based on a set pre-wash heating temperature, the dishwasher is controlled to perform a pre-wash heating operation; and after the pre-wash heating operation, the turbidity sensor is used to detect a second turbidity value of the water in the dishwasher; based on the pre-wash heating temperature and the turbidity value range to which the second turbidity value belongs, a temperature compensation value for the second turbidity value is determined; the second turbidity value is compensated based on the temperature compensation value to obtain a third turbidity value; based on the relationship between the third turbidity value and the first turbidity value, a target wash mode for the dishwasher is determined, and the dishwasher is controlled to operate according to the target wash mode. Thus, by temperature compensating the turbidity value detected during the pre-wash heating operation of the dishwasher, the accuracy of the turbidity detection results is ensured, thereby enabling precise selection of the dishwasher's wash mode, improving wash efficiency, and enhancing user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a dishwasher control method, device, medium and dishwasher. Background Art

[0002] Smart wash mode is now a common dishwasher feature. Under normal wash logic, a turbidity sensor is immersed in a water cup. After pre-washing the dishes in the dishwasher (e.g., heating to 40°C), the turbidity of the water in the cup is measured to intelligently select the dishwasher's wash mode. However, the turbidity sensor's turbidity readings are affected by the water temperature, leading to deviations in the readings and inaccurate detection. This can lead to errors in the intelligent wash logic, impacting the cleaning effect and user experience. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a dishwasher control method, device, medium, and dishwasher to overcome the problem in the prior art that the dishwasher uses a turbidity sensor to detect the turbidity of pre-wash heated water to select a washing mode, which is affected by the heating water temperature, resulting in inaccurate washing mode selection and affecting the cleaning effect and user experience.

[0004] According to a first aspect, an embodiment of the present invention provides a method for controlling a dishwasher, wherein a turbidity sensor is provided in the dishwasher, the method comprising:

[0005] After water enters the dishwasher, the turbidity sensor detects a first turbidity value of the water in the dishwasher;

[0006] Based on the set pre-wash heating temperature, controlling the dishwasher to perform heating pre-wash, and after the heating pre-wash, detecting a second turbidity value of the water in the dishwasher by the turbidity sensor;

[0007] determining a temperature compensation value for the second turbidity value based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs;

[0008] compensating the second turbidity value based on the temperature compensation value to obtain a third turbidity value;

[0009] Based on the relationship between the third turbidity value and the first turbidity value, a target cleaning mode of the dishwasher is determined, and the dishwasher is controlled to operate according to the target cleaning mode.

[0010] Optionally, detecting a first turbidity value of water in the dishwasher by the turbidity sensor includes:

[0011] By adjusting the duty cycle of the turbidity sensor control signal input, the output voltage of the turbidity sensor is adjusted until the output voltage is equal to the standard output voltage of the turbidity sensor, wherein the standard output voltage is the output voltage corresponding to the turbidity sensor when detecting clear water;

[0012] The first turbidity value is determined based on the standard output voltage.

[0013] Optionally, detecting a second turbidity value of water in the dishwasher by the turbidity sensor includes:

[0014] The turbidity sensor is controlled to perform detection according to the target control signal of the standard output voltage corresponding to the duty cycle to obtain a second turbidity value.

[0015] Optionally, determining the temperature compensation value of the second turbidity value based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs includes:

[0016] determining a temperature reference compensation value based on the pre-wash heating temperature and the relationship between temperature and turbidity compensation;

[0017] determining a temperature compensation coefficient based on the turbidity value interval to which the second turbidity value belongs and a relationship between a preset turbidity value interval and a temperature compensation coefficient;

[0018] A temperature compensation value of the second turbidity value is calculated based on the temperature reference compensation value and the temperature compensation coefficient.

[0019] Optionally, the third turbidity value is calculated by the following formula:

[0020] A=A0+A1*K,

[0021] Wherein, A represents the third turbidity value, A0 represents the second turbidity value, A1 represents the temperature reference compensation value, and K represents the temperature compensation coefficient.

[0022] Optionally, determining a target cleaning mode of the dishwasher based on a relationship between the third turbidity value and the first turbidity value includes:

[0023] calculating a ratio of the third turbidity value to the first turbidity value;

[0024] Based on the relationship between the ratio and the ratio ranges corresponding to different cleaning modes, a target cleaning mode is determined.

[0025] Optionally, before detecting the first turbidity value of the water in the dishwasher by the turbidity sensor, or detecting the second turbidity value of the water in the dishwasher by the turbidity sensor, the method further includes:

[0026] Allow the water in the dishwasher to settle.

[0027] Optionally, controlling the dishwasher to perform heating pre-wash based on the set pre-wash heating temperature includes:

[0028] The heater of the dishwasher is controlled to heat according to the pre-wash heating temperature, and the washing pump is turned on to perform pre-washing.

[0029] According to a second aspect, an embodiment of the present invention further provides a dishwasher control device, wherein a turbidity sensor is provided in the dishwasher, and the device comprises:

[0030] a first detection module, configured to detect a first turbidity value of the water in the dishwasher through the turbidity sensor after the dishwasher is filled with water;

[0031] a second detection module, configured to control the dishwasher to perform heating pre-washing based on a set pre-washing heating temperature, and detect a second turbidity value of the water in the dishwasher through the turbidity sensor after the heating pre-washing;

[0032] a first processing module, configured to determine a temperature compensation value of the second turbidity value based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs;

[0033] a second processing module, configured to compensate the second turbidity value based on the temperature compensation value to obtain a third turbidity value;

[0034] The third processing module is configured to determine a target cleaning mode of the dishwasher based on a relationship between the third turbidity value and the first turbidity value, and control the dishwasher to operate according to the target cleaning mode.

[0035] According to a third aspect, an embodiment of the present invention further provides a dishwasher, comprising a turbidity sensor, the dishwasher further comprising: a controller, the controller comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, the processor executing the computer instructions to thereby execute the dishwasher control method described in the first aspect or any one of its optional embodiments.

[0036] According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the dishwasher control method described in the first aspect or any optional embodiment thereof.

[0037] The technical solution of the present invention has the following advantages:

[0038] The dishwasher control method provided by an embodiment of the present invention comprises the following steps: after water enters the dishwasher, the turbidity sensor detects a first turbidity value of the water in the dishwasher; based on a set pre-wash heating temperature, the dishwasher is controlled to perform a pre-wash heating cycle; and after the pre-wash heating cycle, the turbidity sensor detects a second turbidity value of the water in the dishwasher; based on the pre-wash heating temperature and the turbidity value range to which the second turbidity value belongs, the temperature compensation value of the second turbidity value is determined; the second turbidity value is compensated based on the temperature compensation value to obtain a third turbidity value; based on the relationship between the third turbidity value and the first turbidity value, a target wash mode for the dishwasher is determined, and the dishwasher is controlled to operate according to the target wash mode. Thus, by temperature compensating the turbidity value detected during the pre-wash heating cycle, the accuracy of the turbidity detection results is ensured, thereby enabling precise selection of the dishwasher's wash mode, improving wash efficiency, and enhancing user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a structural schematic diagram of a dishwasher according to an embodiment of the present invention;

[0041] Figure 2 This is a flow chart of a dishwasher control method according to an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of a process for automatically selecting a cleaning program for a dishwasher according to an embodiment of the present invention;

[0043] Figure 4 Schematic diagram of a turbidity reference curve according to an embodiment of the present invention;

[0044] Figure 5 Schematic diagram of the structure of a dishwasher control device according to an embodiment of the present invention;

[0045] Figure 6 Schematic diagram of the structure of a controller in a dishwasher according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] The technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Smart wash mode is now a common dishwasher feature. Under normal wash logic, a turbidity sensor is immersed in a water cup. After pre-washing the dishes in the dishwasher (e.g., heating to 40°C), the turbidity of the water in the cup is measured to intelligently select the dishwasher's wash mode. However, the turbidity sensor's turbidity readings are affected by the water temperature, leading to deviations in the readings and inaccurate detection. This can lead to errors in the intelligent wash logic, impacting the cleaning effect and user experience.

[0049] In order to solve the above problems, the embodiment of the present invention provides a dishwasher control method, which is applied to Figure 1 The dishwasher shown includes a turbidity sensor 11 and a controller 12. The detailed operation of controller 12 is described in the following method embodiments and will not be repeated here. For example, turbidity sensor 11 can be installed in the dishwasher's inner tank to detect the turbidity of the water therein.

[0050] Figure 2 FIG. 1 shows a flow chart of a method for controlling a dishwasher according to an embodiment of the present invention. Figure 2 As shown, the dishwasher control method specifically includes the following steps:

[0051] Step S101: After water enters the dishwasher, a first turbidity value of the water in the dishwasher is detected by the turbidity sensor.

[0052] Specifically, if Figure 3 As shown, when the user selects the dishwasher to enter the smart wash mode, the dishwasher will automatically use the turbidity sensor to detect turbidity and call different washing programs to automatically clean the dishes in the dishwasher. When the dishwasher is filled with water for the first time, the turbidity sensor detects turbidity and obtains a first turbidity value.

[0053] Furthermore, by adjusting the duty cycle of the turbidity sensor control signal input, the output voltage of the turbidity sensor is regulated until the output voltage equals the standard output voltage of the turbidity sensor. The standard output voltage is the output voltage of the turbidity sensor when detecting clear water. The first turbidity value is determined based on the standard output voltage. For example, the specific value of the standard output voltage of the turbidity sensor is determined by the type and model of the turbidity sensor, such as 4.2V or 3.8V. The specific value can be obtained from the turbidity sensor's product manual. Calibrating the turbidity sensor using the standard output voltage of the turbidity sensor avoids the problem of inaccurate wash mode selection caused by the water quality or other interference affecting the turbidity sensor's detection results. Since the output voltage of the turbidity sensor is fixed after the dishwasher enters the water, that is, the turbidity value obtained after AD sampling is a fixed reference value, the turbidity change detected after the subsequent heated pre-wash is entirely caused by stains on the dishes. This ensures that the turbidity value detection result accurately reflects the degree of dirtiness of the dishes, facilitates accurate wash mode selection, further improves the intelligent washing performance of the dishwasher, and enhances the user experience.

[0054] Step S102: Based on the set pre-wash heating temperature, the dishwasher is controlled to perform heating pre-washing, and after the heating pre-washing, a second turbidity value of the water in the dishwasher is detected by the turbidity sensor.

[0055] The pre-wash heating temperature can be flexibly set according to the actual pre-wash function requirements of the dishwasher, such as 40°C, 50°C, etc., but the present invention is not limited thereto. In the embodiments of the present invention, a pre-wash heating temperature of 40°C is used as an example for description. Specifically, the dishwasher heater is controlled to heat according to the pre-wash heating temperature, and the wash pump is turned on to perform pre-washing.

[0056] Furthermore, the turbidity sensor is controlled to perform detection according to the target control signal corresponding to the standard output voltage and duty cycle to obtain a second turbidity value. In practical applications, after the dishwasher is filled with water and the duty cycle of the input turbidity sensor is adjusted to complete the calibration of the turbidity sensor, the turbidity sensor is controlled with the same duty cycle during subsequent turbidity detection processes, thereby ensuring that all turbidity detections are performed under the same control conditions, further preventing the influence of different control conditions on the final turbidity detection results, ensuring the accuracy of the turbidity detection results, and further improving the accuracy of the wash mode selection results, thereby enhancing the user experience.

[0057] In practical applications, to further ensure the accuracy of the turbidity sensor's detection results, before the turbidity sensor detects a first turbidity value of the water in the dishwasher, or before the turbidity sensor detects a second turbidity value of the water in the dishwasher, the method further includes: allowing the water in the dishwasher to stand still. For example, after the dishwasher is filled with water, in order to avoid the impact of water flow on the detection results, turbidity detection is performed after the clean water stabilizes after standing still for 30 seconds. The washing pump and heater begin operating until the 40°C pre-wash heating phase ends. At this point, the oil stains and residues on the dishes are essentially rinsed away, and the washing water reaches a state where turbidity can be determined. Because the washing water is unstable due to the washing pump, it needs to be allowed to stand still for another 30 seconds before the turbidity test is performed, thereby ensuring the accuracy of the final turbidity test results.

[0058] Step S103: determining a temperature compensation value of the second turbidity value based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs.

[0059] Step S104: compensating the second turbidity value based on the temperature compensation value to obtain a third turbidity value.

[0060] Step S105: determining a target cleaning mode of the dishwasher based on the relationship between the third turbidity value and the first turbidity value, and controlling the dishwasher to operate according to the target cleaning mode.

[0061] Specifically, in one embodiment, the above step S103 specifically includes the following steps:

[0062] Step S31: determining a temperature reference compensation value based on the pre-wash heating temperature and the relationship between temperature and turbidity compensation.

[0063] Specifically, turbidity detection experiments are carried out on water of the same turbidity at different temperatures using a turbidity sensor. From the experimental phenomena, it is known that different turbidity values ​​have different detection results under the influence of temperature. Through a large number of experiments, the turbidity detection values ​​of each turbidity detected under different temperature conditions can be obtained. The average difference between the turbidity detection value and the true turbidity value under different temperature conditions is calculated as the turbidity compensation, and the relationship between different temperatures and turbidity compensation can be obtained. Based on this relationship, the turbidity compensation corresponding to the pre-wash heating temperature (i.e., the temperature reference compensation value A1) can be obtained.

[0064] Step S32: determining a temperature compensation coefficient based on the turbidity value interval to which the second turbidity value belongs and a relationship between a preset turbidity value interval and a temperature compensation coefficient.

[0065] Specifically, a series of detection experiments were conducted using turbidity sensors on water with turbidity values ​​ranging from 0NTU to 2000NTU at different temperatures, such as Figure 4As shown in the experimental data turbidity reference curve, the slope of the curve (i.e., the temperature compensation coefficient) corresponding to the turbidity compensation (i.e., the difference in turbidity values ​​detected by the turbidity sensor) varies at different temperatures for different turbidity values. Therefore, through experiments, multiple turbidity value intervals and the corresponding difference curve efficiency for each turbidity value interval can be obtained, thereby determining the relationship between the preset turbidity value interval and the temperature compensation coefficient. When the turbidity sensor detects a certain turbidity value, by comparing which preset turbidity value interval the turbidity value belongs to, the temperature compensation coefficient corresponding to the preset turbidity value interval is determined as the current temperature compensation coefficient K of the turbidity sensor.

[0066] Step S33: Calculating a temperature compensation value of the second turbidity value based on the temperature reference compensation value and the temperature compensation coefficient.

[0067] The temperature compensation value is the product of the temperature reference compensation value A1 and the temperature compensation coefficient K. Furthermore, the third turbidity value is calculated by the following formula (1):

[0068] A=A0+A1*K (1)

[0069] Wherein, A represents the third turbidity value, A0 represents the second turbidity value, A1 represents the temperature reference compensation value, and K represents the temperature compensation coefficient.

[0070] Specifically, in one embodiment, the above step S105 specifically includes the following steps:

[0071] Step S51: Calculate the ratio of the third turbidity value to the first turbidity value.

[0072] Step S52: determining a target cleaning mode based on a relationship between the ratio and the ratio ranges corresponding to different cleaning modes.

[0073] For example, the dishwasher will execute one of several smart wash logics based on the calculated ratio and the ratio range corresponding to different wash modes. For example, A (0-600 NTU): a shorter main wash phase; B (600-2000 NTU): a normal main wash phase; C / D (>2000 NTU): an extended main wash phase with a corresponding increase in rinse times. Furthermore, the number of turbidity intervals and corresponding wash logic can be further refined, for example, using 50 NTU intervals, with liquids above 2000 NTU considered very turbid.

[0074] In actual applications, since decimal points cannot be processed in software control, AD sampling is required to convert the voltage into an AD signal to obtain the output voltage of the turbidity sensor. Since the AD value of the standard output voltage is a fluctuating quantity, such as around 4.2V, the fixed interval range may lead to inaccurate selection of the washing program. By using ratios, such as determining the ratio of the output voltages corresponding to 600NTU and 0NTU, the ratio of the output voltages corresponding to 1000NTU and 0NTU, and the ratio of the output voltages corresponding to 2000NTU and 0NTU, the washing mode can be judged more stably. Compared with directly comparing turbidity values ​​by dividing the intervals by comparison values, the selected washing mode is more accurate, further improving the user experience.

[0075] The improved dishwasher control method according to the embodiment of the present invention will be described in detail below with reference to specific application examples.

[0076] The Smart Wash mode calls different wash programs by detecting turbidity. The program countdown is the initial time of the Smart Wash. Subsequent calls to different programs will increase / decrease the time accordingly. Turbidity detection instructions: After the water is first added, the turbidity test is performed 30 seconds after the water stops. By adjusting the turbidity sensor input signal to approach 4.2V, the turbidity calibration AD value (i.e., the first turbidity value a) is obtained. The execution time is 7 to 20 seconds (±1 second). After the pre-wash is heated to 40°C and the stage is completed, the turbidity determination AD value (i.e., the second turbidity value A0) is obtained. It is determined to be in the range of 0NTU-2000NTU and temperature compensation is performed to obtain the third temperature-compensated turbidity value A.

[0077] Experimental observations indicate that different turbidity values ​​react differently to temperature, leading to inaccurate wash logic for Smart Wash. The temperature reference compensation value, A1, was determined by averaging a large amount of experimental data. By selecting Smart Wash mode, after the water enters the pre-wash phase, the flow of water affects the measured value. After the water stabilizes for 30 seconds, the turbidity calibration AD value (i.e., the first turbidity value, a) is obtained and saved. The wash pump and heater operate until the 40°C pre-wash phase ends, essentially rinsing away any grease and residue from the dishes. The wash water reaches a state where turbidity can be determined. Driven by the wash pump, the wash water becomes unstable and needs to rest for another 30 seconds. The turbidity sensor acquires and stores the turbidity determination AD value (second turbidity value A0). The control program determines and calculates the range for A0. For example, when A0 is between 500 NTU and 600 NTU, A = A0 + A1 * K. The turbidity determination AD value after temperature compensation (i.e., the third turbidity value A) is divided by the turbidity calibration AD value (first turbidity value a), resulting in a turbidity ratio f = A / a. Different wash logic programs are invoked based on the turbidity ratio range to which the turbidity ratio belongs. This precise temperature compensation for different turbidity levels allows for accurate selection of intelligent wash modes, improving both the washing performance and the user experience.

[0078] By executing the above steps, the dishwasher control method provided by the embodiment of the present invention ensures the accuracy of the turbidity detection results by temperature compensating the turbidity value detected during the dishwasher's heated pre-wash process, thereby accurately selecting the dishwasher's washing mode, improving the washing effect, and enhancing the user experience.

[0079] Figure 5 FIG. 1 shows a structural diagram of a dishwasher control device provided by the present invention. Figure 5 As shown, the dishwasher control device specifically includes:

[0080] The first detection module 101 is used to detect a first turbidity value of the water in the dishwasher through the turbidity sensor after the dishwasher enters the dishwasher. For details, please refer to the description of step S101 in the above method embodiment.

[0081] The second detection module 102 is configured to control the dishwasher to perform a pre-wash heating process based on the set pre-wash heating temperature, and detect a second turbidity value of the water in the dishwasher via the turbidity sensor after the pre-wash heating process. For details, see the description of step S102 in the above method embodiment.

[0082] The first processing module 103 is configured to determine a temperature compensation value for the second turbidity value based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs. For details, see the description of step S103 in the above method embodiment.

[0083] The second processing module 104 is configured to compensate the second turbidity value based on the temperature compensation value to obtain a third turbidity value. For details, please refer to the description of step S104 in the above method embodiment.

[0084] The third processing module 105 is configured to determine a target cleaning mode for the dishwasher based on the relationship between the third turbidity value and the first turbidity value, and control the dishwasher to operate according to the target cleaning mode. For details, see the description of step S105 in the above method embodiment.

[0085] The dishwasher control device provided in the embodiment of the present invention is used to execute the dishwasher control method provided in the above embodiment. Its implementation method and principle are the same. For details, please refer to the relevant description of the above method embodiment and will not be repeated here.

[0086] Through the coordinated cooperation of the above-mentioned components, the dishwasher control device provided in the embodiment of the present invention ensures the accuracy of the turbidity detection results by temperature compensating the turbidity value detected by the dishwasher's heated pre-washing process, thereby accurately selecting the dishwasher's washing mode, improving the washing effect, and enhancing the user experience.

[0087] Figure 6 FIG. 1 shows a structural diagram of the controller 12 in the dishwasher according to an embodiment of the present invention. Figure 6 As shown, the controller 12 may include a processor 901 and a memory 902, wherein the processor 901 and the memory 902 may be connected via a bus or other means. Figure 6 The bus connection is taken as an example.

[0088] The processor 901 may be a central processing unit (CPU). The processor 901 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0089] Memory 902, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as the program instructions / modules corresponding to the methods in the above-described method embodiments. Processor 901 executes the non-transitory software programs, instructions, and modules stored in memory 902 to perform various processor functions and data processing, thereby implementing the methods in the above-described method embodiments.

[0090] The memory 902 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created by the processor 901, etc. In addition, the memory 902 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 902 may optionally include a memory remotely located relative to the processor 901, and these remote memories may be connected to the processor 901 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0091] One or more modules are stored in the memory 902 and, when executed by the processor 901 , perform the method in the above method embodiment.

[0092] The specific details of the controller 12 can be understood by referring to the corresponding descriptions and effects in the above method embodiments, and will not be repeated here.

[0093] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD). The storage medium can also include a combination of the above-mentioned types of memory.

[0094] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for controlling a dishwasher, wherein a turbidity sensor is provided in the dishwasher, characterized in that: The method comprises: After water enters the dishwasher, the turbidity sensor detects a first turbidity value of the water in the dishwasher; Based on the set pre-wash heating temperature, controlling the dishwasher to perform heating pre-wash, and after the heating pre-wash, detecting a second turbidity value of the water in the dishwasher by the turbidity sensor; determining a temperature compensation value for the second turbidity value based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs; compensating the second turbidity value based on the temperature compensation value to obtain a third turbidity value; determining a target cleaning mode for the dishwasher based on a relationship between the third turbidity value and the first turbidity value, and controlling the dishwasher to operate according to the target cleaning mode; The determining, based on the pre-wash heating temperature and the turbidity value interval to which the second turbidity value belongs, a temperature compensation value of the second turbidity value includes: Based on the pre-wash heating temperature and the relationship between temperature and turbidity compensation, a temperature reference compensation value is determined; wherein, a turbidity detection experiment is performed on water of the same turbidity at different temperatures using a turbidity sensor to obtain turbidity detection values ​​of each turbidity detected under different temperature conditions, and the average difference between the turbidity detection value and the true turbidity value under different temperature conditions is calculated as the turbidity compensation, thereby obtaining the relationship between different temperatures and turbidity compensation; determining a temperature compensation coefficient based on the turbidity value interval to which the second turbidity value belongs and a relationship between a preset turbidity value interval and a temperature compensation coefficient; A temperature compensation value of the second turbidity value is calculated based on the temperature reference compensation value and the temperature compensation coefficient.

2. The method according to claim 1, characterized in that The detecting a first turbidity value of water in the dishwasher by the turbidity sensor includes: By adjusting the duty cycle of the turbidity sensor control signal input, the output voltage of the turbidity sensor is adjusted until the output voltage is equal to the standard output voltage of the turbidity sensor, wherein the standard output voltage is the output voltage corresponding to the turbidity sensor when detecting clear water; The first turbidity value is determined based on the standard output voltage.

3. The method according to claim 2, characterized in that The detecting a second turbidity value of water in the dishwasher by the turbidity sensor includes: The turbidity sensor is controlled to perform detection according to the target control signal of the standard output voltage corresponding to the duty cycle to obtain a second turbidity value.

4. The method according to claim 1, wherein The third turbidity value is calculated by the following formula: A=A0+A1*K, Wherein, A represents the third turbidity value, A0 represents the second turbidity value, A1 represents the temperature reference compensation value, and K represents the temperature compensation coefficient.

5. The method according to claim 1, wherein The determining a target cleaning mode of the dishwasher based on a relationship between the third turbidity value and the first turbidity value includes: calculating a ratio of the third turbidity value to the first turbidity value; Based on the relationship between the ratio and the ratio ranges corresponding to different cleaning modes, a target cleaning mode is determined.

6. The method according to claim 1, characterized in that Before detecting the first turbidity value of the water in the dishwasher by the turbidity sensor, or detecting the second turbidity value of the water in the dishwasher by the turbidity sensor, the method further includes: Allow the water in the dishwasher to settle.

7. The method according to claim 1, characterized in that The step of controlling the dishwasher to perform heating pre-wash based on the set pre-wash heating temperature includes: The heater of the dishwasher is controlled to heat according to the pre-wash heating temperature, and the washing pump is turned on to perform pre-washing.

8. A dishwasher control device, wherein a turbidity sensor is provided in the dishwasher, characterized in that: The device comprises: a first detection module, configured to detect a first turbidity value of the water in the dishwasher through the turbidity sensor after the dishwasher is filled with water; a second detection module, configured to control the dishwasher to perform heating pre-washing based on a set pre-washing heating temperature, and detect a second turbidity value of the water in the dishwasher through the turbidity sensor after the heating pre-washing; a first processing module, configured to determine a temperature compensation value for the second turbidity value based on the prewash heating temperature and the turbidity value interval to which the second turbidity value belongs; the determining the temperature compensation value for the second turbidity value based on the prewash heating temperature and the turbidity value interval to which the second turbidity value belongs comprising: determining a temperature reference compensation value based on the prewash heating temperature and a relationship between temperature and turbidity compensation; determining a temperature compensation coefficient based on a relationship between the turbidity value interval to which the second turbidity value belongs and a preset turbidity value interval and a temperature compensation coefficient; and calculating the temperature compensation value for the second turbidity value based on the temperature reference compensation value and the temperature compensation coefficient; wherein, turbidity detection experiments are performed on water of the same turbidity at different temperatures using a turbidity sensor to obtain turbidity detection values ​​of each turbidity detected under different temperature conditions, and the average difference between the turbidity detection values ​​and the true turbidity values ​​under different temperature conditions is calculated as the turbidity compensation, thereby obtaining the relationship between different temperatures and turbidity compensation; a second processing module, configured to compensate the second turbidity value based on the temperature compensation value to obtain a third turbidity value; The third processing module is configured to determine a target cleaning mode of the dishwasher based on a relationship between the third turbidity value and the first turbidity value, and control the dishwasher to operate according to the target cleaning mode.

9. A dishwasher comprising: The turbidity sensor is characterized in that the dishwasher further comprises: a controller, The controller includes: a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the dishwasher control method according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the dishwasher control method according to any one of claims 1 to 7.

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