Dishwasher and control method thereof

Abstract

The embodiment of the invention belongs to the technology of household appliances, and provides a dish-washing machine and a control method thereof.The dish-washing machine comprises an inner container, an outer container and a dish-washing device, and a washing cavity used for containing to-be-washed tableware and washing water is formed in the inner container; the spraying assembly is configured to spray washing water to the tableware; the spectrum sensor is configured to perform material identification on the tableware; the turbidity sensor is configured to collect the turbidity of the washing water; an ultrasonic assembly configured to generate ultrasonic waves; the controller is configured to identify the material of the tableware through the material identification assembly and determine the smudginess degree of the tableware through the turbidity sensor; determining a first operation parameter of the ultrasonic assembly according to the material of the tableware and the smudginess degree of the tableware; and in the cleaning stage, the spraying assembly is controlled to spray washing water to the tableware, and the ultrasonic assembly is controlled to operate based on the first operation parameter. According to the scheme, the tableware cleaning effect can be effectively improved, and the cleaning time is shortened.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and more specifically, to a dishwasher and a control method thereof. Background Art

[0002] Dishwashers are a hands-free productivity tool and are very popular among users. Currently, dishwashers rely on high-pressure spraying to clean dishes, but this method has problems such as high water and energy consumption and insufficient cleaning power for stubborn stains. Summary of the Invention

[0003] The embodiments of the present application provide a dishwasher and a control method thereof, for improving the cleaning effect of tableware.

[0004] In a first aspect, an embodiment of the present application provides a dishwasher, comprising:

[0005] An inner tank is formed with a washing cavity for accommodating dishes to be washed and washing water;

[0006] a spray assembly configured to spray washing water onto the tableware;

[0007] a spectral sensor, disposed in the inner container and configured to identify the material of the tableware;

[0008] a turbidity sensor, disposed in the washing chamber and configured to collect turbidity of the washing water;

[0009] an ultrasonic component, disposed in the inner container and configured to generate ultrasonic waves;

[0010] A controller configured to:

[0011] identifying the material of the tableware by using the spectral sensor, and determining the degree of dirtiness of the tableware by using the turbidity sensor;

[0012] Determining a first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter includes an operating time and / or an operating frequency;

[0013] During the cleaning stage, the spray component is controlled to spray washing water on the tableware, and the ultrasonic component is controlled to operate based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves to the tableware, so that the washing water sprayed to the tableware vibrates and cleans the tableware.

[0014] The above solution can determine the operating parameters of the matching ultrasonic components according to the material and degree of dirtiness of the tableware. During the cleaning process, the tableware is cleaned by combining spraying and ultrasonic waves, which can effectively improve the cleaning effect of the tableware, reduce the cleaning time, and reduce unnecessary energy consumption.

[0015] In some embodiments, the cleaning stage includes a rinse stage and a main wash stage, and the controller is configured to:

[0016] The first operating parameters corresponding to the flushing stage and the main washing stage are determined according to the material of the tableware and the degree of dirtiness of the tableware, as well as the mapping relationship between the material-the degree of dirtiness and the operating parameters.

[0017] In some embodiments, the dishwasher further includes an image acquisition component, and the controller is configured to:

[0018] After the rinsing stage is completed, the cleanliness of the tableware is obtained by the image acquisition component;

[0019] If the cleanliness of the tableware does not match the preset cleanliness, the operating time and / or operating frequency of the ultrasonic component corresponding to the main wash stage is adjusted.

[0020] In some embodiments, the controller is configured to:

[0021] Controlling the washing water with a preset water volume of the spray component to rinse the tableware;

[0022] collecting the turbidity of the washing water after flushing by the turbidity sensor;

[0023] The degree of dirtiness of the dishes is determined based on the turbidity of the wash water.

[0024] In some embodiments, the dishwasher further comprises: a laser assembly, wherein the laser assembly is disposed in the inner container, and the controller is configured to:

[0025] determining a second operating parameter of the laser assembly according to the material of the tableware; the second operating parameter includes an operating power of the laser assembly and / or an operating time of the laser assembly;

[0026] In the drying stage, the laser assembly is controlled to operate according to the second operating parameter, so that the laser assembly emits a laser beam to the tableware to dry the tableware.

[0027] In some embodiments, the dishwasher further comprises: a distance sensor configured to detect the distance between the tableware and the laser assembly; and the controller is configured to:

[0028] A second operating parameter of the laser assembly is determined according to the shortest distance between the tableware and the laser assembly and the material of the tableware.

[0029] In some embodiments, the dishwasher further comprises: a humidity sensor disposed in the washing chamber, and the controller is configured to:

[0030] After drying is completed, determining the humidity of the tableware by using the humidity sensor;

[0031] If the humidity of the tableware indicates that the drying is not up to standard, determining a third operating parameter of the laser assembly according to the humidity, the material of the tableware and the shortest distance;

[0032] The operation of the laser assembly is re-controlled according to the third operating parameter to dry the tableware.

[0033] In some embodiments, the laser assembly includes: a laser generator and an optical diffraction unit, wherein the optical diffraction unit is configured to:

[0034] The laser beam generated by the laser generator is diffracted so that the diffracted laser beam covers the washing chamber.

[0035] In some embodiments, the controller is configured to:

[0036] During the drying stage, obtaining the opening angle of the door of the dishwasher;

[0037] When the opening angle is greater than or equal to a preset angle, the laser assembly is controlled to stop running.

[0038] In a second aspect, an embodiment of the present application provides a method for controlling a dishwasher, the dishwasher comprising:

[0039] An inner tank is formed with a washing cavity for accommodating dishes to be washed and washing water;

[0040] a spray assembly configured to spray washing water onto the tableware;

[0041] a spectral sensor, disposed in the inner container and configured to identify the material of the tableware;

[0042] a turbidity sensor, disposed in the washing chamber and configured to collect turbidity of the washing water;

[0043] an ultrasonic component, disposed in the inner container and configured to generate ultrasonic waves;

[0044] A controller configured to:

[0045] identifying the material of the tableware by using the spectral sensor, and determining the degree of dirtiness of the tableware by using the turbidity sensor;

[0046] Determining a first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter includes an operating time and / or an operating frequency;

[0047] During the cleaning stage, the spray component is controlled to spray washing water on the tableware, and the ultrasonic component is controlled to operate based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves to the tableware, so that the washing water sprayed to the tableware vibrates and cleans the tableware.

[0048] In a third aspect, an embodiment of the present application provides a dishwasher, comprising: a memory, a processor;

[0049] The memory stores computer-executable instructions;

[0050] The processor executes the computer-executable instructions stored in the memory, so that the processor executes various possible implementations of the second aspect as described above.

[0051] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement various possible implementations of the second aspect above.

[0052] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements various possible implementation methods of the second aspect above.

[0053] The dishwasher and its control method provided by the embodiment of the present application include: an inner tank, forming a washing chamber for accommodating tableware to be washed and washing water; a spray component, configured to spray washing water on the tableware; a spectral sensor, arranged in the inner tank, configured to identify the material of the tableware; a turbidity sensor, arranged in the washing chamber, configured to collect the turbidity of the washing water; an ultrasonic component, arranged in the inner tank, configured to generate ultrasonic waves; a controller, the controller being configured to: identify the material of the tableware through the material identification component, and determine the degree of dirtiness of the tableware through the turbidity sensor; determine a first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter including an operating time and / or an operating frequency; during a washing stage, controlling the spray component to spray washing water on the tableware, and controlling the operation of the ultrasonic component based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves to the tableware, so that the washing water sprayed on the tableware vibrates, thereby cleaning the tableware. The above solution can determine the operating parameters of the matching ultrasonic components according to the material and degree of dirtiness of the tableware. During the cleaning process, the tableware is cleaned by combining spraying and ultrasonic waves, which can effectively improve the cleaning effect of the tableware, reduce the cleaning time, and reduce unnecessary energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0055] Figure 1 A structural diagram of a dishwasher provided in this application Figure 1 ;

[0056] Figure 2 A structural diagram of a dishwasher provided in this application Figure 2 ;

[0057] Figure 3 A structural diagram of a dishwasher provided in this application Figure 3 ;

[0058] Figure 4 A flowchart of a dishwasher control method provided in this application Figure 1 ;

[0059] Figure 5 A flowchart of a dishwasher control method provided in this application Figure 2 ;

[0060] Figure 6 A structural diagram of a dishwasher provided in this application Figure 4 ;

[0061] Figure 7 A flowchart of a dishwasher control method provided in this application Figure 3 ;

[0062] Figure 8 This is a schematic structural diagram of the control device of the dishwasher provided in this application.

[0063] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0064] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0065] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0066] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0067] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0069] As a kitchen appliance, dishwashers can be used to automatically clean pots, bowls, chopsticks, plates, dishes, cups and other items, which greatly facilitates users' lives and is loved by more and more users.

[0070] Figure 1 This is a structural diagram of a dishwasher. Figure 1 As shown, the dishwasher may include a dishwasher inner container 10 and a door 11. The dishwasher inner container 10 may have a washing chamber 12 and an opening. The door 11 may be provided at the opening of the dishwasher inner container 10. The washing chamber 12 may be used to place items such as pots, bowls, chopsticks, plates, dishes, and cups for washing.

[0071] Currently, a dishwasher's washing process can be divided into four stages: pre-rinse, main wash, rinse, and drying (also known as drying). After the user selects a wash mode, the dishwasher starts and enters the pre-rinse stage, where it begins to fill the inner tank 10 with wash water. After the water is filled, the dishwasher begins to rinse the objects to be cleaned using the rinse parameters corresponding to the wash mode (e.g., water pressure, duration, etc.), washing away some dirt. After rinsing is complete, the dishwasher drains the wastewater through the drain and enters the main wash stage.

[0072] At the beginning of the main wash stage, the dishwasher starts to inject washing water into the inner tank 10, determines the water temperature that needs to be heated according to the main wash parameters corresponding to the washing mode, and heats the injected washing water through the heater arranged at the bottom of the inner tank 10. When the washing water is heated to the preset temperature, the heater is turned off, and the dishwasher starts to execute the washing program, washing the objects to be cleaned according to the main wash parameters corresponding to the washing mode. After the main wash stage is over, the dishwasher discharges the sewage through the drain outlet and enters the hot rinsing stage.

[0073] At the beginning of the hot rinsing stage, the dishwasher starts to inject washing water into the inner tank 10, and heats the injected washing water through the heater arranged at the bottom of the inner tank 10. When the washing water is heated to a preset temperature, the heater is turned off, and the dishwasher starts to execute the hot rinsing program, and hot rinses the objects to be cleaned according to the rinsing parameters corresponding to the washing mode. After the hot rinsing stage is completed, the dishwasher discharges the sewage through the drain outlet and enters the drying stage.

[0074] After entering the drying stage, the dishwasher can control the door 11 to open automatically and dry the objects through the residual heat of the device after the hot rinsing stage.

[0075] Currently, dishwashers rely on high-pressure spraying to clean tableware, but this method has problems such as high water consumption, high energy consumption, and insufficient cleaning power for stubborn stains.

[0076] In view of this, an embodiment of the present application provides a dishwasher and a control method thereof. By adding an ultrasonic component to the dishwasher, when the tableware is cleaned by spraying, the ultrasonic component is simultaneously started to vibrate the washing water sprayed to the tableware, thereby effectively improving the cleaning effect and reducing energy consumption.

[0077] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0078] Figure 2 A structural diagram of a dishwasher provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the dishwasher includes: an inner tank 10, a water storage tank 13, a heater 14, a water inlet valve 15, and a controller 16.

[0079] A washing cavity 12 for accommodating objects to be washed and washing water and an opening are formed in the inner tank 10. A door 11 may be provided at the opening of the inner tank 10 of the dishwasher.

[0080] The water storage tank 13 has a contoured structure consistent with the outer shape of the inner tank 10 and is arranged in close contact with the outer wall of the inner tank 10 for storing spare washing water.

[0081] The heater 14 is disposed adjacent to the inner tank 10 (e.g., at the bottom of the inner tank 10) and is configured to start operating in response to an operation instruction from the controller 16 to heat the wash water in the inner tank 10. Alternatively, the heater 14 may stop operating and stop heating the wash water in the inner tank 10 in response to a stop instruction from the controller 16.

[0082] The water inlet valve 15 is connected to the inner tank 10, the water storage tank 13, and the external water inlet via water inlet pipes. The water inlet valve 15 is configured to respond to an open command from the controller 16 to open the valve, allowing external water to flow into the inner tank 10 and / or the water storage tank 13. Alternatively, the water inlet valve 15 can respond to a close command from the controller 16 to close the valve, stopping the flow of wash water into the inner tank 10 and / or the water storage tank 13.

[0083] The controller 16 can be connected to the heater 14 and the water inlet valve 15 to control or acquire data from the heater 14 and the water inlet valve 15. Optionally, the controller 16 can be any chip with processing capabilities.

[0084] In some embodiments, the dishwasher further includes a door driving member 17 .

[0085] The door 11 can be disposed at the opening of the dishwasher's inner container 10 and is rotatably connected to the inner container 10. When the door 11 is open, items can be placed in and out of the inner container 10 through the opening. A door driver 17 is connected to the door and can be used to control the automatic opening and closing of the door 11.

[0086] In some embodiments, the door driver 17 may also be referred to as a door control element. The door driver 17 may respond to instructions from the controller 16 to control the door 11 to automatically open or close. For example, if the controller 16 sends an instruction to the door driver 17 to instruct the door 11 to open, the door driver 17 may respond to the instruction to instruct the door 11 to open and control the door 11 to automatically open. If the controller 16 sends an instruction to the door driver 17 to instruct the door 11 to close, the door driver 17 may respond to the instruction to instruct the door 11 to close and control the door 11 to automatically close.

[0087] In some embodiments, after the hot rinse phase, the dishwasher enters a drying phase. During the drying phase, the controller 16 sends a command to the door driver 17 to instruct the door 11 to open. In response to the command, the door driver 17 automatically opens the door 11, discharging the large amount of humid water vapor generated in the inner container 10 during the hot rinse phase, thereby quickly drying the components within the inner container 10. After a preset time (e.g., one minute), the controller 16 sends a command to the door driver 17 to instruct the door 11 to close. In response, the door driver 17 automatically closes the door 11.

[0088] After controller 16 controls door 11 to close, the temperature of the dishwasher's internal components, the inner tank walls, and the surfaces of the objects remains relatively high. This residual heat allows the washed objects to be dried. Furthermore, the vacuum insulation provided by the water tank prolongs the time the dishwasher's interior remains at a high temperature, accelerating the drying of washed objects while reducing energy consumption, resulting in a rapid and energy-efficient drying effect.

[0089] In some embodiments, the dishwasher inner tank 10 is further provided with an upper spray arm 18 , a rack 19 and a lower spray arm 20 .

[0090] The rack 19 is used to store objects to be washed, such as pots, bowls, ladles, and basins. The upper spray arm 18 is used to draw washing water stored in the washing chamber and spray the washing water from above onto the objects stored on the rack 19 to clean the objects. The lower spray arm 20 is used to draw washing water stored in the washing chamber and spray the washing water from below onto the objects stored on the rack 19 to clean the objects. The upper spray arm 18 and the lower spray arm 20 can be referred to as a spray assembly.

[0091] It should be understood that when washing objects, the dishwasher may use only the upper spray arm 18 to spray water on the objects, only the lower spray arm 20 to spray water on the objects, or both the upper spray arm 18 and the lower spray arm 20 to spray water on the objects. The above-mentioned water spraying cleaning mode can be determined based on the set cleaning program (for example, a wash program or a hot rinse program).

[0092] In some embodiments, as Figure 2 As shown, the dishwasher further includes a spectrum sensor 21, a turbidity sensor 22 and an ultrasonic component 23. The spectrum sensor 21, the turbidity sensor 22 and the ultrasonic component 23 are all arranged in the inner container 10.

[0093] In some embodiments, the spectral sensor 21 is disposed in the inner pot 10 , and is configured to respond to control instructions from the controller 16 and collect spectral reflectance data of the tableware stored in the inner pot 10 .

[0094] The turbidity sensor 22 is disposed in the washing chamber 12 and is configured to respond to a control instruction from the controller 16 and collect the turbidity of the washing water stored in the washing chamber.

[0095] The ultrasonic component 23 is disposed in the inner pot 10 and is configured to emit ultrasonic waves to the tableware in the inner pot 10 in response to a control instruction from the controller 16 .

[0096] In some embodiments, as Figure 3 As shown, the ultrasonic component 23 includes an ultrasonic generator 231 and a transducer 232. The ultrasonic generator 231 is used to emit a high-frequency oscillation signal, which is converted into a high-frequency mechanical oscillation signal through the transducer 232 and propagated to the surface of the tableware. The cavitation effect of ultrasonic waves in the liquid is used to make the water sprayed onto the surface of the tableware vibrate, so that the dirt layer on the surface of the tableware is dispersed, emulsified, and peeled off to achieve the cleaning purpose.

[0097] In some embodiments, the transducer 232 in the ultrasonic component 23 is a multi-band transducer array, which includes multiple transducers. The multiple transducers are distributed in the inner tank 10 in a spiral gradient distribution, so that the high-frequency mechanical oscillation signal converted by the multi-band transducer array can cover the entire inner tank washing cavity 12, thereby improving the effect of ultrasonic cleaning of tableware in the washing cavity 12.

[0098] It should be understood that Figure 2 The structure of the dishwasher is described by taking some components related to the present application as an example, and the present application does not limit whether the dishwasher includes other components.

[0099] The controller 16 may be configured to execute a cleaning process in response to a user's instruction. Figure 4 This is a flow chart of a dishwasher control method provided in this application. Figure 3 As shown, the following steps may be included:

[0100] S401 : Identify the material of the tableware using the spectral sensor, and determine the degree of dirtiness of the tableware using the turbidity sensor.

[0101] In some embodiments, upon receiving the start signal, the controller may send a spectrum collection instruction to the spectrum collection sensor, so that the spectrum collection device collects the spectral reflectance data of the tableware.

[0102] After receiving the start signal, the controller can inject washing water into the washing chamber through the water tank, and control the spray component to rinse the tableware with a preset amount of water (for example, 100-300 ml) of the washing water. After the rinsing is completed, a collection instruction is sent to the turbidity collection device so that the turbidity collection device collects the turbidity of the washing water.

[0103] In some embodiments, after acquiring the spectral reflectance data, a preset mapping relationship between the spectral reflectance data and materials (e.g., such mapping relationship is stored in the controller as a mapping table) can be queried to determine the material of the tableware. For example, when the spectral reflectance data is between A and B, the corresponding tableware material may include glass or iron; when the spectral reflectance data is between B and C, the corresponding tableware material may include glass, iron, plastic, etc.

[0104] In some embodiments, after obtaining the turbidity of the wash water, the degree of dirtiness of the dishes can be determined based on a preset mapping relationship between the degree of dirtiness and the turbidity. For example, the degree of dirtiness of the dishes can be divided into three levels: low, medium, and high.

[0105] S402: Determine a first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter includes an operating time and / or an operating frequency.

[0106] In some embodiments, after obtaining the material and soiling level of the tableware, the material and soiling level of the tableware can be input into a pre-trained prediction model to obtain the first operating parameter output by the prediction model. The training dataset can include the material and soiling level of multiple sample tableware and the first sample operating parameter (label data). The prediction model training method can refer to existing training methods.

[0107] In some embodiments, after obtaining the material of the tableware and the degree of dirtiness of the tableware, a database may be queried to determine the first operating parameter, wherein the database stores ultrasonic operating parameters corresponding to different tableware and degrees of dirtiness.

[0108] S403. During the cleaning phase, the spray component is controlled to spray washing water onto the tableware, and the ultrasonic component is controlled to operate based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves toward the tableware, thereby vibrating the washing water sprayed onto the tableware to clean the tableware.

[0109] In some embodiments, after entering the washing stage, the controller can control the operation of the ultrasonic component based on the first operating parameter while controlling the spray component to spray washing water on the dishes.

[0110] It should be understood that the cleaning stage includes a flushing stage (pre-rinsing) and a main washing stage, and the first operating parameter may include an operating parameter corresponding to each stage.

[0111] It should be understood that the spray parameters (eg, water temperature, water pressure, duration, etc.) used by the spray assembly to spray the dishes with washing water can be determined using conventional methods, for example, based on a cleaning mode selected by the user.

[0112] In some embodiments, after the washing stage is completed, the dishwasher enters the rinsing stage. The implementation of the rinsing stage is similar to the rinsing process in the prior art and will not be repeated here.

[0113] The dishwasher control method provided in an embodiment of the present application includes identifying the material of the tableware using the spectral sensor and determining the degree of dirtiness of the tableware using the turbidity sensor. Based on the material and degree of dirtiness of the tableware, a first operating parameter of the ultrasonic component is determined; the first operating parameter includes an operating duration and / or an operating frequency. During the cleaning phase, the spray component is controlled to spray wash water onto the tableware, and the ultrasonic component is controlled to operate based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves onto the tableware, causing the wash water sprayed onto the tableware to vibrate and clean the tableware. The above method can determine the matching operating parameters of the ultrasonic component based on the material and degree of dirtiness of the tableware. During the cleaning process, the tableware is cleaned using a combination of spraying and ultrasonic waves, which can effectively improve the cleaning effect of the tableware, reduce cleaning time, and reduce unnecessary energy consumption. Furthermore, determining the ultrasonic operating parameters based on the material of the tableware can also improve adaptability to the tableware material and reduce damage to the tableware (e.g., reducing scratches on plastic tableware).

[0114] In some embodiments, to further improve the cleaning effect, the dishwasher can also adjust the first operating parameters of the ultrasonic component in real time during the cleaning process.

[0115] Figure 5 Schematic diagram of the control method of the dishwasher provided in the embodiment of the present application Figure 3 ,like Figure 5 Shown, including:

[0116] S501. After the rinsing stage is completed, the cleanliness of the tableware is obtained by an image acquisition device.

[0117] In some embodiments, the dishwasher further includes an image acquisition device, which is disposed in the inner tank and is used to acquire image data of tableware in the washing cavity.

[0118] In some embodiments, the higher the cleanliness, the better the cleaning effect of the tableware. The controller can control the image acquisition device to acquire image data of the tableware at the end of the rinsing stage, and determine the cleanliness of the tableware based on the image data.

[0119] For example, the controller can perform color analysis (such as the yellow color of oil stains and the milky white color of protein residues) and texture analysis (such as calculating local binary patterns (LBP) or gray-level co-occurrence matrices (GLCM) to compare the texture differences between clean and stained areas) on the image data, or use the YOLO or Faster R-CNN algorithm to analyze the image data to determine the cleanliness of the tableware.

[0120] S502: If the cleanliness does not match the preset cleanliness, adjust the operating time and / or operating frequency of the ultrasonic component corresponding to the main wash stage.

[0121] In some embodiments, when the cleanliness level corresponding to the rinse phase is obtained, the cleanliness level may be compared with a preset cleanliness level. If there is a mismatch (e.g., inconsistency, or a difference greater than a preset value), i.e., the cleanliness level does not meet the standard, the operating time and / or operating frequency of the ultrasonic component corresponding to the main wash phase may be adjusted. For example, the operating frequency of the ultrasonic component during the main wash phase may be increased and / or the operating time of the ultrasonic component may be extended.

[0122] Exemplarily, the controller may input the current cleanliness, the preset cleanliness, and the first operating parameter corresponding to the main wash stage into a pre-trained model to obtain the adjusted first operating parameter corresponding to the main wash stage output by the model.

[0123] In some embodiments, after the main wash phase is completed, the controller may also obtain the cleanliness level corresponding to that phase through an image acquisition device. If the cleanliness level corresponding to that phase still does not meet the standard, the main wash may be repeated. When the main wash is repeated, the first operating parameters and spray parameters of the ultrasonic component during the main wash may be determined based on the current cleanliness level.

[0124] In some embodiments, after rinsing, the controller may further execute a drying process to dry the dishes.

[0125] Figure 6 This is a structural diagram of another dishwasher provided in an embodiment of the present application, as shown in FIG. Figure 6 As shown, the dishwasher further comprises a laser assembly 24 .

[0126] The laser assembly 24 is disposed in the inner pot 10 and is configured to emit a laser beam toward the tableware in the inner pot 10 in response to a control instruction from the controller 16 .

[0127] In some embodiments, the laser beam emitted by the laser assembly 24 is an infrared laser.

[0128] In some embodiments, the laser assembly 24 includes a laser generator 241 and an optical diffraction unit 242, which are connected by an optical path. The laser generator 241 is used to emit a laser beam, and the optical diffraction unit 242 is used to diffract the laser beam generated by the laser generator 241 so that the diffracted laser beam covers the washing chamber.

[0129] It should be understood that Figure 6This is only an illustrative setting position of the laser component in the inner tank. Those skilled in the art can also adjust the setting position of the laser component in the inner tank according to actual needs. The embodiment of the present application does not limit the setting position of the laser component in the inner tank.

[0130] Figure 7 This is a flow chart of another method for controlling a dishwasher provided in an embodiment of the present application, as shown in FIG. Figure 7 As shown, including:

[0131] S701, according to the material of the tableware, determining the second operating parameters of the laser assembly; the second operating parameters include the operating power of the laser assembly and / or the operating time of the laser assembly.

[0132] In some embodiments, after obtaining the material of the tableware, the tableware material can be input into a pre-trained prediction model to obtain the second operating parameter output by the prediction model. The training dataset can include the material and second operating parameters (label data) of multiple sample tableware. The prediction model training method can refer to existing training methods.

[0133] In some embodiments, the material of the tableware may be obtained by querying a database to determine the second operating parameter, wherein the database stores operating parameters of the laser assembly corresponding to different tableware materials.

[0134] In some embodiments, the dishwasher further includes a distance sensor, which is disposed in the inner tank and is used to detect the distance between the tableware and the laser assembly.

[0135] In some embodiments, there may be multiple dishes in the washing chamber, and the distance sensor may detect multiple distances. When the controller obtains multiple distances detected by the distance sensor, the shortest distance may be used as the distance between the dishes and the laser assembly.

[0136] In some embodiments, the controller can input the distance between the tableware and the laser assembly and the material of the tableware into a pre-trained prediction model to obtain the second operating parameter output by the prediction model. By using the two-dimensional parameters of material and distance, the accuracy of the second operating parameter of the laser assembly can be improved.

[0137] S702: In the drying stage, the laser assembly is controlled to operate according to the second operating parameter, so that the laser assembly emits a laser beam to the tableware to dry the tableware.

[0138] In some embodiments, the controller can control the operation of the laser component according to the second operating parameter so that the laser beam emitted by the laser component is irradiated onto the surface of the tableware, so that water molecules absorb the energy of the laser beam and convert it into heat energy, thereby achieving targeted dehydration of the tableware.

[0139] In some embodiments, the dishwasher further includes a humidity sensor disposed in the inner tank for detecting the humidity of the tableware.

[0140] In some embodiments, after the drying is completed, the controller can control the humidity sensor to detect the humidity of the tableware. If the detected humidity is greater than a preset value, it means that the drying is not up to standard. The controller can then determine the third operating parameter of the laser assembly based on the humidity, the material of the tableware and the shortest distance; and re-control the operation of the laser assembly based on the third operating parameter to dry the tableware.

[0141] For example, the controller may query a preset data table according to the humidity, the material of the tableware and the shortest distance, or obtain the third operating parameter using a pre-trained model.

[0142] In some embodiments, since leakage of the laser beam may cause harm to the user, during the drying process, the controller can also obtain the opening angle of the dishwasher door through the door drive. When the opening angle is greater than or equal to a preset angle* (for example, 5°), the laser assembly is controlled to stop running and the laser output is cut off to prevent the leaked laser beam from causing harm to the user.

[0143] In summary, laser drying can optimize the laser wavelength for the absorption peak of water molecules, improving energy utilization and thus drying efficiency. It also operates silently: no fan noise and low operating noise. Antibacterial effect: Specific wavelength lasers can inhibit the growth of microorganisms such as E. coli.

[0144] In some embodiments, after drying is complete, the controller can upload the material and soiling level of the dishes, as well as the first operating parameters of the ultrasonic component during the cleaning process, to the cloud, so that the cloud updates the corresponding model based on the uploaded data. After the cloud completes the corresponding model update, the updated model can be sent to the controller, so that the controller uses the updated model in subsequent cleaning processes.

[0145] The controller can also upload the second operating parameters of the laser assembly during the drying phase and the material of the tableware to the cloud, so that the cloud can update the corresponding model based on the uploaded data. After the cloud completes the corresponding model update, the updated model can be sent to the controller, so that the controller uses the updated model in subsequent drying processes.

[0146] In some embodiments, after drying is completed, the controller may also send a cleaning report to the user's client. The cleaning report may include cleaning time, water consumption, electricity consumption, drying time, etc., so that the user can understand the entire cleaning process.

[0147] Based on the above embodiments, an embodiment of the present application further provides a dishwasher control device.

[0148] Figure 8 This is a structural diagram of a dishwasher control device provided in an embodiment of the present application, as shown in FIG. Figure 8 Shown, including:

[0149] The processing module 801 is configured to identify the material of the tableware using the spectral sensor, and determine the degree of dirtiness of the tableware using the turbidity sensor.

[0150] The determination module 802 is used to determine the first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter includes the operating time and / or the operating frequency.

[0151] The control module 803 is used to control the spray component to spray washing water on the tableware during the cleaning stage, and control the operation of the ultrasonic component based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves to the tableware, so that the washing water sprayed to the tableware vibrates, thereby cleaning the tableware.

[0152] In some embodiments, the determination module 802 is further used to determine the first operating parameters corresponding to the flushing stage and the main wash stage respectively based on the material of the tableware and the degree of dirtiness of the tableware, as well as the mapping relationship between material-degree of dirtiness and operating parameters.

[0153] In some embodiments, the determination module 802 is also used to obtain the cleanliness of the tableware through the image acquisition component after the rinsing stage is completed; if the cleanliness of the tableware does not match the preset cleanliness, the operating time and / or operating frequency of the ultrasonic component corresponding to the main washing stage is adjusted.

[0154] In some embodiments, the processing module 801 is also used to control the washing water with a preset water volume of the spray component to rinse the tableware; collect the turbidity of the washing water after rinsing through the turbidity sensor; and determine the degree of dirtiness of the tableware based on the turbidity of the washing water.

[0155] In some embodiments, the determination module 802 is further used to determine a second operating parameter of the laser assembly based on the material of the tableware; the second operating parameter includes the operating power of the laser assembly and / or the operating time of the laser assembly; in the drying stage, the operation of the laser assembly is controlled according to the second operating parameter, so that the laser assembly emits a laser beam to the tableware to dry the tableware.

[0156] In some embodiments, the determination module 802 is further configured to determine a second operating parameter of the laser assembly according to the shortest distance between the tableware and the laser assembly and the material of the tableware.

[0157] In some embodiments, the determination module 802 is further configured to determine the humidity of the tableware using the humidity sensor after drying is completed; if the humidity of the tableware indicates that the drying is not up to standard, determine a third operating parameter of the laser assembly based on the humidity, the material of the tableware, and the shortest distance;

[0158] In some embodiments, the control module 803 is further configured to obtain an opening angle of the door of the dishwasher during the drying stage; and control the laser assembly to stop operating when the opening angle is greater than or equal to a preset angle.

[0159] The dishwasher control device provided in this application is used to execute the technical solution of the dishwasher control method provided in any of the aforementioned embodiments. Its implementation principle and technical effect are similar and will not be described in detail.

[0160] It should be noted that it should be understood that the division of the various modules of the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also all be implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware. Each module can be a separately established processing element, or it can be integrated into a chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and called by a processing element of the above device to execute the functions of the above modules. In addition, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by the hardware integrated logic circuit in the processor element or software instructions.

[0161] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0162] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0163] The readable storage medium may be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0164] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0165] The division of units is merely a logical functional division; actual implementations may employ alternative divisions, such as combining or integrating multiple units or components into another system, or omitting or disabling certain features. Furthermore, any direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units, either through an interface, electrical, mechanical, or other means.

[0166] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0167] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0168] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the method of the present invention. The aforementioned storage medium includes various media that can store program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0169] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0170] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A dishwasher, characterized in that: include: An inner tank is formed with a washing cavity for accommodating dishes to be washed and washing water; a spray assembly configured to spray washing water onto the tableware; a spectral sensor, disposed in the inner container and configured to identify the material of the tableware; a turbidity sensor, disposed in the washing chamber and configured to collect turbidity of the washing water; an ultrasonic component, disposed in the inner container and configured to generate ultrasonic waves; A controller configured to: identifying the material of the tableware by using the spectral sensor, and determining the degree of dirtiness of the tableware by using the turbidity sensor; Determining a first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter includes an operating time and / or an operating frequency; During the cleaning stage, the spray component is controlled to spray washing water on the tableware, and the ultrasonic component is controlled to operate based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves to the tableware, so that the washing water sprayed to the tableware vibrates and cleans the tableware.

2. The dishwasher according to claim 1, characterized in that The cleaning stage includes a rinsing stage and a main washing stage, and the controller is configured to: The first operating parameters corresponding to the flushing stage and the main washing stage are determined according to the material of the tableware and the degree of dirtiness of the tableware, as well as the mapping relationship between the material-the degree of dirtiness and the operating parameters.

3. The dishwasher according to claim 2, characterized in that The dishwasher further includes an image acquisition component, and the controller is configured to: After the rinsing stage is completed, the cleanliness of the tableware is obtained by the image acquisition component; If the cleanliness of the tableware does not match the preset cleanliness, the operating time and / or operating frequency of the ultrasonic component corresponding to the main wash stage is adjusted.

4. The dishwasher according to any one of claims 1 to 3, characterized in that: The controller is configured to: controlling the spray assembly to rinse the tableware with a preset amount of washing water; collecting the turbidity of the washing water after flushing by the turbidity sensor; The degree of dirtiness of the dishes is determined based on the turbidity of the wash water.

5. The dishwasher according to claim 1, wherein: The dishwasher further includes a laser assembly, which is disposed in the inner container. The controller is configured to: determining a second operating parameter of the laser assembly according to the material of the tableware; the second operating parameter includes an operating power of the laser assembly and / or an operating time of the laser assembly; In the drying stage, the laser assembly is controlled to operate according to the second operating parameter, so that the laser assembly emits a laser beam to the tableware to dry the tableware.

6. The dishwasher according to claim 5, characterized in that The dishwasher further includes: a distance sensor configured to detect the distance between the tableware and the laser assembly; and the controller is configured to: A second operating parameter of the laser assembly is determined according to the shortest distance between the tableware and the laser assembly and the material of the tableware.

7. The dishwasher according to claim 6, characterized in that The dishwasher further includes a humidity sensor disposed in the washing chamber, and the controller is configured to: After drying is completed, determining the humidity of the tableware by using the humidity sensor; If the humidity of the tableware indicates that the drying is not up to standard, determining a third operating parameter of the laser assembly according to the humidity, the material of the tableware and the shortest distance; The operation of the laser assembly is re-controlled according to the third operating parameter to dry the tableware.

8. The dishwasher according to claim 7, characterized in that The laser assembly includes: a laser generator and an optical diffraction unit, wherein the optical diffraction unit is configured as follows: The laser beam generated by the laser generator is diffracted so that the diffracted laser beam covers the washing chamber.

9. The dishwasher according to any one of claims 5 to 7, characterized in that: The controller is configured to: During the drying stage, obtaining the opening angle of the door of the dishwasher; When the opening angle is greater than or equal to a preset angle, the laser assembly is controlled to stop running.

10. A method for controlling a dishwasher, characterized in that: The dishwasher comprises: An inner tank is formed with a washing cavity for accommodating dishes to be washed and washing water; a spray assembly configured to spray washing water onto the tableware; a spectral sensor, disposed in the inner container and configured to identify the material of the tableware; a turbidity sensor, disposed in the washing chamber and configured to collect turbidity of the washing water; an ultrasonic component, disposed in the inner container and configured to generate ultrasonic waves; A controller configured to: identifying the material of the tableware by using the spectral sensor, and determining the degree of dirtiness of the tableware by using the turbidity sensor; Determining a first operating parameter of the ultrasonic component according to the material of the tableware and the degree of dirtiness of the tableware; the first operating parameter includes an operating time and / or an operating frequency; During the cleaning stage, the spray component is controlled to spray washing water on the tableware, and the ultrasonic component is controlled to operate based on the first operating parameter, so that the ultrasonic component emits ultrasonic waves to the tableware, so that the washing water sprayed to the tableware vibrates and cleans the tableware.

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