CN112869680A - Washing method for a dishwasher, washing device and dishwasher - Google Patents
Washing method for a dishwasher, washing device and dishwasher Download PDFInfo
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- CN112869680A CN112869680A CN202110032060.1A CN202110032060A CN112869680A CN 112869680 A CN112869680 A CN 112869680A CN 202110032060 A CN202110032060 A CN 202110032060A CN 112869680 A CN112869680 A CN 112869680A
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- washing
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- dishwasher
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Washing And Drying Of Tableware (AREA)
Abstract
The embodiment of the invention provides a washing method and a washing device for a dishwasher and the dishwasher, wherein the washing method for the dishwasher comprises the following steps: acquiring a first image of tableware in a dishwasher; identifying a type of contamination on the dishware based on the first image; determining a corresponding washing mode according to the type of the pollutant; controlling the dish-washing machine to sequentially pre-wash the tableware according to a washing mode; acquiring a second image of the dishware in the dishwasher after each pre-cleaning; comparing the first image and the second image to determine the effectiveness of the washing pattern; the method can solve the problem that the pollutant types can not be accurately identified in the prior art so as to match a proper washing mode for the current pollutant types, thereby realizing thorough cleaning, consuming short time and high efficiency, and saving water energy and electric energy.
Description
Technical Field
The invention relates to the technical field of kitchen and bathroom appliances, in particular to a washing method and a washing device for a dish washing machine and the dish washing machine.
Background
As the living standard is improved, the use of the dish washing machine is increased. The intelligent application is more and more extensive, and the corresponding demand for the dish washer is also higher and higher.
In order to realize more energy-saving and more accurate and efficient cleaning, the cleaning method of the existing dishwasher usually adopts image recognition for cooperation, and in the application of dish washing image recognition, various characteristics of tableware and pollutants are firstly recognized, different washing modes are started according to the characteristics, several modes are usually preset, then the corresponding washing modes are matched according to the characteristics, and cleaning is carried out according to the matched washing modes. The above conventional cleaning method has the following disadvantages: in terms of image recognition, it is difficult for image recognition to distinguish contaminants attached to the tableware from patterns on the tableware itself. The accuracy is difficult to realize only by image recognition, so that the subsequent matched washing mode is not accurate, the effectiveness of the washing mode is difficult to determine, and the final washing effect is not ideal.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a washing method for a dishwasher, a washing device, and a dishwasher.
In order to achieve the above object, in a first aspect of the present invention, there is provided a pre-washing method for a dishwasher, comprising: acquiring a first image of tableware in a dishwasher; identifying a type of contamination on the dishware based on the first image; determining a corresponding washing mode according to the type of the pollutant; controlling the dish-washing machine to sequentially pre-wash the tableware according to a washing mode; acquiring a second image of the dishware in the dishwasher after each pre-cleaning; the first image and the second image are compared to determine the effectiveness of the wash mode.
In the embodiments of the present application, the types of contaminants include: the contaminant type includes one of: temperature-sensitive, pressure-sensitive, and detergent-sensitive.
In an embodiment of the present application, determining the corresponding washing pattern according to the type of the contaminants includes: establishing a mapping relation between the pollutant type and a washing mode; matching a washing mode corresponding to the type of the pollutant according to the mapping relation; wherein the washing mode comprises any one of detergent, temperature and pressure.
In an embodiment of the present application, comparing the first image and the second image to determine the effectiveness of the washing pattern comprises: comparing the second image with the first image to determine the type of the removed pollutant; the type of contaminant being removed is matched by the wash pattern to determine the effectiveness of the wash pattern.
In an embodiment of the present application, identifying the type of contamination on the dishware from the first image comprises: establishing a database according to a pollutant image acquired in advance and a pollutant type label of the pollutant image; pre-training the image recognition model through a database; the acquired first image is input to a pre-trained image recognition model to determine a contaminant type.
In a second aspect of the present invention, there is provided a washing device for a dishwasher, comprising: an image acquisition device configured to acquire an image of the tableware; the spray arm is used for spraying a cleaning medium to clean tableware in a cleaning area in the dishwasher; a processor configured to: acquiring a first image of tableware in a dishwasher; identifying a type of contamination on the dishware based on the first image; determining a corresponding washing mode according to the type of the pollutant; controlling the dish-washing machine to sequentially wash the tableware according to a washing mode; after washing in each washing mode, acquiring a second image of the tableware in the dishwasher; the first image and the second image are compared to determine the effectiveness of the wash mode.
In embodiments of the present application, the contaminant types include at least one of: temperature-sensitive, pressure-sensitive, and detergent-sensitive.
In an embodiment of the application, the processor being configured to determine the corresponding washing pattern based on the type of contaminant comprises the processor being configured to: establishing a mapping relation between the pollutant type and a washing mode; matching a washing mode corresponding to the type of the pollutant according to the mapping relation; wherein the washing mode comprises any one of detergent, temperature and pressure.
In an embodiment of the application, the processor being configured to compare the first image and the second image to determine the effectiveness of the washing pattern comprises the processor being configured to: comparing the second image with the first image to determine the type of the removed pollutant; the type of contaminant being removed is matched by the wash pattern to determine the effectiveness of the wash pattern.
In an embodiment of the application, the processor being configured to identify a type of contamination on the utensil from the first image comprises the processor being configured to: establishing a database according to a pollutant image acquired in advance and a pollutant type label of the pollutant image; pre-training the image recognition model through a database; the acquired first image is input to a pre-trained image recognition model to determine a contaminant type.
An embodiment of the invention provides a dishwasher, comprising a washing device for the dishwasher according to the above.
In another aspect, there is provided a computer readable storage medium having stored thereon instructions for enabling a processor to perform a method of controlling a dishwasher according to the above when executed by the processor.
In an embodiment of the invention, there is also provided a computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements a method for a dishwasher according to the above.
According to the technical scheme, namely the pre-cleaning method for the dish-washing machine, the first image is obtained, the corresponding washing mode is preset according to the pollutant type of the first image, the tableware is pre-cleaned in sequence according to the washing mode, and the first image and the second image are compared, so that the effectiveness of the washing mode is determined; the method can solve the problem that the pollutant types can not be accurately identified in the prior art, and the proper washing mode is matched for the current pollutant types, so that the purposes of cleaning thoroughly, consuming time and having high efficiency are achieved, and water energy and electric energy are saved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1A schematically illustrates a schematic structural view of a dishwasher in accordance with an embodiment of the present invention;
FIG. 1B schematically illustrates a front view of the structure of a dishwasher in accordance with an embodiment of the present invention;
FIG. 1C schematically illustrates a schematic structural view of a washing mechanism of a dishwasher in accordance with an embodiment of the present invention;
FIG. 1D schematically illustrates a partial structural view of the purge mechanism of FIG. 1C;
FIG. 2 is a flow chart of a washing method for a dishwasher according to an embodiment of the present invention;
FIG. 3 is a flowchart of a step S13 of a washing method for a dishwasher according to an embodiment of the present invention;
FIG. 4 is a logic diagram of a washing method for a dishwasher according to an embodiment of the present invention;
FIG. 5 is a flow chart of a washing method for a dishwasher according to an embodiment of the present invention;
FIG. 6 is a flowchart of a step S16 of the washing method for the dishwasher according to the first embodiment of the present invention;
FIG. 7 is a flowchart of a step S162 of a washing method for a dishwasher according to an embodiment of the present invention;
FIG. 8 is another flowchart of step S162 of the washing method for the dishwasher according to the first embodiment of the present invention;
FIG. 9 is a flow chart of a washing method for a dishwasher according to a second embodiment of the present invention;
FIG. 10 is a flowchart illustrating step S22 of the cleaning method according to the second embodiment of the present invention;
FIG. 11 is a flowchart illustrating step S23 of the cleaning method according to the second embodiment of the present invention; and
fig. 12 is a flowchart of step S26 of the cleaning method according to the second embodiment of the present invention.
Description of the reference numerals
100. A cleaning device;
1. a housing; 2. A cleaning mechanism;
21. an image acquisition device; 22. A rack;
23. a drive motor; 24. A processor;
25. a spray arm; 26. Mounting a bracket;
251. and (7) water outlet holes.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "or" appearing throughout is meant to encompass three juxtapositions, exemplified by "a or B" and including either a disposition or B disposition, or both a and B satisfied disposition. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The embodiment of the invention mainly provides a method for a dishwasher, in particular to a method for completing washing of the dishwasher, namely a washing method of the dishwasher, and the washing method aims to solve the problem that the existing dishwasher is not perfect.
In order to better understand the washing method provided by the embodiment of the invention, firstly, a dishwasher suitable for the washing method is provided.
Fig. 1A schematically shows a configuration diagram of a dishwasher according to an embodiment of the present invention, in which a control method for the dishwasher according to an embodiment of the present invention may be applied. Fig. 1B schematically shows a front view of the structure of a dishwasher according to an embodiment of the present invention. It should be understood that fig. 1A and 1B are only one embodiment of the dishwasher 100 for illustrating the washing method provided by the present invention, and are not intended to limit the shape, position, installation manner and connection relationship of the parts of the dishwasher not related to the present invention;
as shown in fig. 1A and 1B, the dishwasher 100 may include a housing 1 and a washing mechanism 2 disposed inside the housing 1. The outer contour of the housing 1 may include, but is not limited to, a rectangular, cylindrical shape.
Washing means 2 may include image capture device 21, shelf 22, processor 24, and spray arm 25.
A rack 22 (e.g., a basket) may be fixed inside the dishwasher 100 for holding dishes, and the image capturing device 21 may include a camera or an image sensor (e.g., an infrared sensor). The image capture device 21 can be arranged in a variety of orientations within the dishwasher 100. Processor 24 may be electrically connected to image capture device 21.
The image capture device 21 may be used to capture images within the dishwasher 100 and the processor 24 may be used to process the captured images.
For example, in one example, the image capturing device 21 may capture an image of the dishes on the rack 22 after the dishes are placed on the rack 22. Processor 24 may acquire the image and determine characteristics of dishes placed within dishwasher 100 to control spray arms 25 to wash the dishes according to the characteristics of the dishes.
Examples of processor 24 may include, but are not limited to, a general purpose processor, a special purpose processor, a conventional processor, a Digital Signal Processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) circuits, any other type of Integrated Circuit (IC), a state machine, and the like.
In one example, the spray arm 25 may take a rotatable form.
FIG. 1C schematically illustrates a schematic structural view of a washing mechanism of a dishwasher in accordance with an embodiment of the present invention; FIG. 1D schematically illustrates a partial structural view of the purge mechanism of FIG. 1C. Referring to FIGS. 1B-1D, the washing mechanism 2 may further include a drive motor 23, and the drive motor 23 may be disposed on the underside of the interior of the dishwasher 100, or may be disposed on the back of the dishwasher 100, i.e., the side away from which the dishes are placed by the user. The drive motor 23 may be connected to a spray arm 25. The spray arm 25 is provided with water spray holes 251 communicated with the interior of the spray arm 25, and the water spray holes 251 can be arranged on the spray arm 25 at intervals so that the spray arm 25 sprays a larger range. In one example, the spray arm 25 may be cylindrical, and the water spray holes 251 are spaced and arranged in an array in the cross-section of the spray arm 25 such that water sprayed from the water spray holes 251 is sprayed at an angle.
In an embodiment of the present invention, the dishwasher 100 may further include a water pressure transducer (not shown), a water heater (not shown), and a water valve (not shown). The hydraulic transducer and the water heater may be electrically connected to processor 24, and the hydraulic transducer, water heater and water valve may be internally connected to and in communication with spray arm 25. The connection of the spray arm 25 with the water pressure transmitter, the water heater, the water valve, and the driving motor 23 may be a direct connection or an indirect connection through an intermediate member.
The water valve can be used for controlling the water yield of the sprayed water, the water pressure transmitter can be used for controlling the water outlet pressure, the water heater can be used for controlling the water outlet temperature, and the driving motor 23 can be used for driving the spraying arm 25 to rotate. In one example, the spray arm 25 may be disposed at a central location within the dishwasher. The central position may be defined as a middle position of the plurality of racks 22 in the dishwasher 100 so as to cover dishes on the plurality of racks 22 when the spray arm 25 rotates, thereby saving space inside the dishwasher 100. Only a single spray arm 25 is needed to spray the tableware on a plurality of shelf 22, which saves the cost of design and material and brings more use space.
The water valves, water pressure transducer, water heater, and drive motor 23 may be controlled by the processor 24. For example, the area of the rack 22 for placing dishes can be divided into four quadrants, namely, the first, second, third and fourth quadrants. Processor 24 may control drive motor 23 to rotate spray arm 25 such that spray aperture 251 is directed toward any of the four quadrants. In addition, processor 24 may also control a water valve to adjust the amount of water output (or stop the water output) from spout 251.
In the embodiment of the present invention, the driving motor 23 may also drive the spray arm 25 to translate. When the spray arm 25 is translatable, the dishwasher 100 may further include a conversion mechanism (not shown) coupled between the drive motor 23 and the spray arm 25 that converts rotation of the drive motor 23 into translation of the spray arm 25.
In the present embodiment, the shelf 22 may include one or more shelves, such as two shelves. In the example of a two-level rack shown in the figures, the spray arm 25 may be located in the middle of the two racks 22 so that all dishes on the two racks 22 may be sprayed when the spray arm 25 is rotated.
In an embodiment of the present invention, the dishwasher 100 may further include a mounting bracket 26, and the spray arm 25 may be rotatably coupled to the mounting bracket 26. The mounting bracket 26 is fixed in position such that the spray arm 25 can rotate relative to the mounting bracket 26. the manner in which the mounting bracket 26 is fixed in position is not limited, as the mounting bracket 26 can be fixedly attached to the carrier 22 or elsewhere.
In summary, the structural features of the dishwasher 100 provided by the embodiment of the present invention can realize the following functions:
1. the spray arm 25 is driven by the driving motor 23 to move, the movement comprises rotation and translation, and the spray arm 25 can spray cleaning media to clean tableware in a cleaning area in the dishwasher.
2. The dishes in the washing area within the dishwasher are image-captured by the image capturing device 21, the image not being limited to an image of the dishes or an image of contaminants.
The above is the basic structure and functions that the dishwasher provided by the embodiment of the present invention has, and other structures are not described, and the method embodiment is further supplemented later. It will be appreciated by those skilled in the art that structural modifications may be made to the invention, which are equivalent or equivalent to the inventive concepts provided by the embodiments of the present invention, while remaining within the scope of the embodiments of the present invention.
The embodiment of the invention also provides a washing method for a dishwasher, which is an integral embodiment, and the embodiment has a plurality of schemes, respectively comprising a plurality of aspects of image recognition of tableware in a washing area of the dishwasher, selection of washing modes, configuration of the washing modes and the like, and the contents of the washing method are specifically described as follows:
referring to fig. 2, fig. 2 is a flow chart of a washing method for a dishwasher according to an embodiment of the present invention; the embodiment of the invention provides a washing method for a dishwasher, in particular to a method for spraying by a spraying arm of the dishwasher, which aims to solve the problem that the existing dishwasher sprays according to a fixed mode, when a washing medium is sprayed by the spraying arm, no matter whether pollutants on tableware can be washed off or not, the washing is finished after a set washing time, such as viscous rice balls, egg custards and pastas, the fixed mode is difficult to wash off, and thus the expected experience effect of a user cannot be achieved.
The cleaning method provided by the embodiment of the invention is realized by the structure of the dishwasher; the term "cleaning medium" mentioned above may be a cleaning liquid prepared by connecting the spray arm to the city water supply end to provide clean water, or mixing other cleaning substances.
The cleaning method comprises the following steps:
step S11, controlling the dishwasher to respectively wash the tableware of the dishwasher in at least one washing mode;
step S12, acquiring an image of the washed tableware;
step S13, determining whether the contaminants on the washed tableware are removed according to the image;
step S14, under the condition that the pollutant is not removed, the washing mode is changed;
and step S15, controlling the dishwasher to wash the dishes again in the changed washing mode.
In step S11, a plurality of washing modes can be pre-configured by encoding in the processor of the dishwasher, each washing mode can treat a corresponding pollutant type, and the washing mode is set based on the washing sensitivity of different pollutant types on the tableware.
Wherein the contaminant types may include: detergent sensitive, temperature sensitive, pressure sensitive. Therefore, the corresponding washing modes provided in the embodiments of the present invention include: washing mode A, adjusting a detergent; a washing mode B, adjusting washing temperature; a washing mode C, adjusting washing pressure; washing mode D, default washing mode.
It is understood that the detergent sensitive type may be, for example, viscous lipid or oil-type contaminants, the temperature sensitive type may be, for example, oil-type contaminants, the pressure sensitive type may be, for example, vegetable leaves, bones, soup, egg custard, paste, etc. attached to dishes, and the washing modes a, B, and C may be classified into a large group of washing modes, which may be further classified as washing modes a1, a washing mode a2, a washing mode A3, wherein the washing modes a1, a washing mode a2, and a washing mode A3 differ in the kind or dosage of detergent, and similarly, the washing mode B may include washing modes B1, B2, and B3 at different washing temperatures, and the corresponding washing modes C may be washing modes C1, C2, C3, etc. at different pressures, wherein the washing mode D is a washing medium or a default washing liquid, Washing mode at initial pressure, initial temperature.
In a specific implementation of step S11, the following method may be used: the dishwasher is first controlled to wash dishes in the dishwasher in a default washing mode.
It is understood that in most cases, the dishwasher can clean the contaminants on the dishes in the default washing mode, because the default washing mode has a certain temperature and pressure, and the dishes will not have uncleaned contaminants each time, so the normal process is: and (4) washing by the dish washing machine in a default washing mode D, acquiring an image of the washed tableware, determining that the pollutants on the washed tableware are removed according to the image, and finishing the washing.
And when other pollutants appear on the tableware, such as sticky paste on the tableware, at the moment, after the default washing mode is finished, other washing modes are changed, the washing modes can be changed in sequence, or can be changed randomly without repetition, such as the washing mode A1 and the washing mode A2, each time of cleaning is carried out in sequence for preset time, if the pollutants are removed every 5s, the washing mode is determined to be effective after the pollutants are cleaned, and the washing mode is continuously used until the pollutants are removed, so that the thorough removal is realized.
Thus, in one particular embodiment, step S11 may be:
firstly, washing tableware in a default washing mode;
when a floor washing mode replacing command is received, replacing the washing modes in sequence or replacing the washing modes randomly (without repetition);
and controlling the dishwasher to be stopped after washing for a preset time according to each washing mode.
Referring to fig. 3, fig. 3 is a flowchart illustrating a step S13 of the washing method for the dishwasher according to the first embodiment of the present invention; in step S13, by acquiring an image of the washed tableware, the image is used to execute step S13, that is, determining whether the contaminants on the washed tableware are removed according to the image, it should be noted that whether the contaminants are removed in the embodiments of the present invention refers to that the contaminants have traces of being washed away, and is not limited to being completely washed away.
The following may be the case for step S13:
step S131, acquiring a first image of the tableware before being cleaned;
step S132, acquiring a second image of the washed tableware;
step S133, comparing the first image and the second image to determine that the contaminant is removed.
Wherein the comparison according to the first image and the second image may be: the first image and the second image are converted into gray (256-gray-scale images) by reading the image data of the first image and the second image before and after the cleaning, respectively, identifying the characteristic quantity of the contaminant on the tableware in the first image and the second image by a boundary characteristic method, and the outline of the pollutant is divided according to the edge characteristic of the pollutant (the step is to take into account that the pollutant can form difference between the first image and the second image due to the shaking of the tableware and not the difference formed by the pollutant being washed away in the washing process but the misjudgment is caused) in the washing area and other positions on the tableware or in the washing area, the first outline of the pollutant in the first picture and the second outline of the pollutant in the second picture are respectively extracted, determining whether the contaminant is reduced based on comparing the first profile with the second profile to determine that the contaminant is removed.
In one embodiment, the comparison between the first contour and the second contour may be a comparison of pixel histograms, and whether the contaminant is removed or not is determined by observing whether a pixel point of the contaminant is changed or not.
Referring to fig. 4, fig. 4 is a logic diagram of a washing method for a dishwasher according to an embodiment of the present invention; in the case where the contaminant is not removed, as set forth in steps S14 and S15, the type of washing mode is not valid for the type of contaminant corresponding to the contaminant at this time, and the replacement washing mode is performed; the dishwasher is controlled to wash the dishes again in the changed washing pattern. By circulating the steps S14 and S15, the tableware can be thoroughly washed. Therefore, the cleaning of the pollutants on the tableware is finished under the condition of cleaning, a better cleaning effect is realized, and better experience is given to a user.
On the other hand, referring to fig. 5, fig. 5 is a further flowchart of a washing method for a dishwasher according to an embodiment of the present invention; in an embodiment of the present invention, the cleaning method further includes:
step S16, under the condition that the pollutant is removed, configuring a washing mode according to the image;
and step S17, controlling the dishwasher to wash the tableware in the configured washing mode.
It can be understood that the steps S16 and S17 are that the washing mode is considered to be valid after the contaminants are removed, and when the washing mode is determined to be valid for the contaminants after a preset time, the step S14 is not executed, that is, the washing mode is not changed, and the valid washing mode is configured, the configuration includes any one of the washing time and the washing position, and after the configuration is completed, the dishes are washed according to the configured washing mode.
Referring to fig. 6, fig. 6 is a flowchart illustrating a step S16 of the washing method for the dishwasher according to the first embodiment of the present invention; configuring the washing pattern according to the image in step S16 in the embodiment of the present invention may include:
step S161, determining a first characteristic of the tableware or a second characteristic of the pollutant remained on the tableware according to the image;
and step S162, configuring a washing mode according to the first characteristic or the second characteristic, wherein the configuration comprises any one of washing time and washing position.
To further illustrate steps S161 to S162, referring to fig. 1D, when the washing mode is used for washing, i.e. when step S11 is implemented, all the water outlet holes 251 of the spray arm 25 may be opened first, the rotation speed of the spray arm 25 may be a constant speed, and other parameters, such as water pressure and temperature, may be constant values, so as to test the effectiveness of the washing mode only by using the washing mode as a variable quantity, but in the following formal washing, for faster and more effective washing, the washing mode may be further configured according to the first characteristic of the dishes and the second characteristic of the pollutants, so as to increase the washing efficiency.
The first feature includes at least one of: the number of the tableware, the material of the tableware and the position of the tableware;
it will be appreciated that the "number" of dishes may be derived from the dish image by performing a target extraction analysis, such as extracting a dish outline, or may be input by the user. Wherein the "position" of the dishware may be obtained from a washing position in the dishwasher where the dishware image profile falls, such as for example: establishing a coordinate system for a washing area of the dishwasher, and acquiring the coordinate position of the tableware image, namely the position of the tableware. It can be understood that through the gray level binarization of the tableware image, the part with the pollutants on the tableware is separated through local threshold value separation, and finally the area and the position of the pollutants are calculated.
Further, the washing time of the washing pattern may be configured by the number of dishes, and the greater the number of dishes, the longer the washing time, thereby ensuring the thoroughness of washing.
In the embodiment of the invention, the washing range of the washing mode can be configured according to the position of the tableware, for example, the water outlet used in the dishwasher is configured, the washing medium is sprayed according to the water outlet corresponding to the position of the tableware, and other water outlets are closed so as not to spray the washing medium, thereby realizing water saving and centralized washing. The second feature includes at least one of: the area of the contaminant, the location of the contaminant,
referring to fig. 7, fig. 7 is a flowchart illustrating a step S162 of a washing method for a dishwasher according to an embodiment of the present invention; in step S162, configuring the effective washing mode according to the first feature or the second feature includes:
step S1621, acquiring the area corresponding to the pollutant on the tableware;
step S1622, the washing time of the washing mode is configured according to the area.
It can be understood that after the tableware image is subjected to gray level binarization, each pollutant type is extracted as an outline, and the cleaning time of the washing mode required to be configured is obtained according to the area of the pollutants of the black pixel points reflected by the pollutants; exemplary are as follows: 1. carrying out grey level binarization on the tableware image; 2. separating the portion of the contaminants on the dishware by local threshold separation; 3. calculating the area of the pollutant; 4. and setting corresponding cleaning time according to the area. A threshold may be set, where the cleaning time is a first time when the area of the contaminant is within the threshold, and a second time when the area of the contaminant exceeds the threshold, the cleaning is considered to be more difficult, and the second time is set at this time.
Referring to fig. 8, fig. 8 is another flowchart of step S162 of a washing method for a dishwasher according to an embodiment of the present invention; in step S162, configuring the effective washing mode according to the first feature or the second feature includes:
step S1621', acquiring the position of the pollutant on the tableware;
step S1621', the washing position of the washing mode is configured according to the position.
The cleaning range of the washing mode can be configured according to the position of the pollutant, the used water outlet is configured, the cleaning medium is sprayed according to the water outlet corresponding to the pollutant, and other water outlets can be closed; thereby realizing water energy saving and centralized cleaning.
In summary, embodiments of the present invention provide a washing method, and in particular, a method for spraying by a spray arm of a dishwasher, the method includes controlling the dishwasher to respectively wash dishes of the dishwasher in at least one washing mode, thereby finding a washing mode capable of thoroughly washing contaminants, and aiming to solve the problem that when the existing dishwasher sprays washing media, regardless of whether the contaminants on the dishes can be washed away by the spray arm, the set washing time is over, such as some sticky rice balls, egg custards, and burnt bars, the fixed mode is difficult to wash away, thereby failing to achieve product experience expected by a user, and improving the washing thoroughness and user experience.
Referring to fig. 9, fig. 9 is a flowchart illustrating a washing method for a dishwasher according to a second embodiment of the present invention; the embodiment of the invention also provides a washing method for a dishwasher, in particular to a method for spraying by using a spraying arm of the dishwasher, which is improved based on the method, and the method determines which washing mode is effective by respectively washing through a plurality of washing modes, such as washing mode A1, washing mode B1 and washing mode C1, for a preset time in turn, but the method takes too long and has too low efficiency, and water energy and electric energy are easily wasted.
Accordingly, embodiments of the present invention provide an improved cleaning method comprising
Step S21, acquiring a first image of tableware in the dishwasher;
step S22, identifying the type of the pollutant on the tableware according to the first image;
step S23, determining a corresponding washing mode according to the type of the pollutant;
step S24, controlling the dish-washing machine to pre-wash the tableware in sequence according to the washing mode;
step S25, after each pre-cleaning, acquiring a second image of the tableware in the dishwasher;
step S26, comparing the first image and the second image to determine the effectiveness of the washing pattern.
In step S21, a first image is first acquired of the dishwasher dishware which has not yet been cleaned, and this is acquired by the image acquisition device. The acquisition may be triggered when the cleaning is started, and may be achieved by editing the job attribute of the image capturing device, and step S21 is a common means for those skilled in the art and is not described in an excessive way.
In order to more clearly illustrate the washing method of steps S21 to S25 provided in the embodiment of the present invention, the washing method in the conventional manner of the dishwasher and the disadvantages thereof will be explained first:
in order to realize more energy-saving and more accurate and efficient cleaning, the cleaning method of the existing dishwasher usually adopts image recognition for cooperation, and in the application of dish washing image recognition, various characteristics of tableware and pollutants are firstly recognized, different washing modes are started according to the characteristics, several modes are usually preset, then the corresponding washing modes are matched according to the characteristics, and cleaning is carried out according to the matched washing modes. The above conventional cleaning method has the following disadvantages: in terms of image recognition, it is difficult for image recognition to distinguish contaminants attached to the tableware from patterns on the tableware itself. The accuracy is difficult to realize only by image recognition, so that the subsequent matched washing mode is not accurate, the effectiveness of the washing mode is difficult to determine, and the final washing effect is not ideal.
Therefore, in the first embodiment of the invention, the washing method directly utilizes a plurality of washing modes to wash the tableware, but the problem of low efficiency still exists, and the washing method provided by the embodiment of the invention firstly acquires the first image of the tableware in the dishwasher, selects the washing mode according to the first image, controls the washing mode to pre-wash the tableware, and directly determines the effective washing mode according to the image comparison before and after the pre-washing.
As above, in the step S22, the processor of the dishwasher may be pre-configured with a plurality of washing modes by encoding, each washing mode may process a corresponding pollutant type, the washing mode is set based on the washing sensitivity of different pollutant types on the dishes, wherein the pollutant types may include: detergent sensitive, temperature sensitive, pressure sensitive.
Thus, the corresponding washing modes provided in embodiments of the present invention may include: washing mode A, adjusting a detergent; a washing mode B and a washing mode adjusting washing temperature; a washing mode C, adjusting washing pressure; washing mode D, default mode.
It will be appreciated that the detergent sensitive types may be, for example, viscous lipid or oil contaminants, temperature sensitive such as oil contaminants, pressure sensitive such as vegetable leaves, bones, soup, egg custard, bars, etc. attached to dishware, for the washing patterns of which washing patterns a, B, and C are a large class, the washing patterns a including washing pattern a1, washing pattern a2, washing pattern A3 may be continuously subdivided, wherein washing modes A1, A2 and A3 are different in the kinds or dosage of detergent, and similarly, washing mode B may include washing modes B1, B2 and B3 with different washing temperatures, the corresponding washing pattern C may be a washing pattern C1, a washing pattern C2, a washing pattern C3, etc. under different pressures, wherein the washing pattern D is a fixed washing pattern.
In an embodiment of the present invention, the steps S21 to S23 are to preliminarily set a washing pattern combination required for the preliminary washing by recognizing the type of contaminants on the dishes of the dishwasher through the pre-image.
It can be understood that the step S22 identifies the type of the contaminants of the dishes according to the first image, and since the dishes may have patterns and the contaminants are difficult to be separated, the type of the contaminants identified by the first image may not be accurate, and therefore, the identification of the type of the contaminants of the dishes according to the first image is a fuzzy algorithm, and only several washing modes are selected, so that the washing machine has the advantages of being more efficient and faster than all the washing modes.
To more clearly illustrate steps S21 through S24, in one example, if the types of contaminants on the dishes are identified as a1 and b1 according to the first image, a combination of washing modes required for pre-washing may be preliminarily formulated through step S23 as follows: a washing pattern a1 and a washing pattern B1, wherein the washing pattern a1 corresponds to the pollutant type a1, the washing pattern B1 corresponds to the pollutant type B1, the dishes of the dishwasher are pre-washed by the washing pattern a1 and the washing pattern B1, the manner of pre-washing is the same as the above-mentioned embodiment, the dishes of the dishwasher are sequentially washed by the washing pattern a1 and the washing pattern B1, for example, after the washing pattern a1 washes for 5s, the washing pattern B1 washes for 5s again, after the washing pattern a1 finishes washing, the dishes are subjected to image recognition once, whether the pollutant type a1 has a sign of being removed is determined, if the pollutant type a1 is removed, the washing pattern a1 is determined to be an effective washing pattern, and similarly, after the washing pattern B1 finishes washing, the dishes are subjected to image recognition again, and whether the washing pattern B1 is effective is determined in the same steps.
Referring to fig. 10, in step S22, the type of the contaminants on the dishes is identified by the first image, and fig. 10 is a flowchart of step S22 in the cleaning method according to the second embodiment of the present invention; identifying a type of contamination on the dishware from the first image includes:
step S221, establishing a database according to a pollutant image acquired in advance and a pollutant type label of the pollutant image;
step S222, pre-training the image recognition model through a database;
step S223, inputting the acquired first image into the pre-trained image recognition model to determine the type of the pollutant.
It is understood that, among other things, some images of the contaminants are acquired in advance, and a contaminant type label, such as the graph x-label: and oil stain to pre-train a pre-created image recognition model, wherein the image recognition model can be a neural network model or other models, and in the actual use process, a user puts tableware each time, triggers the dish-washing machine to collect tableware images of a cleaning area of the dish-washing machine, and inputs a first image of the dish-washing machine into the pre-trained image recognition model to determine the type of the pollutant.
Further, a cloud database can be established by the pollutant images and the pollutant type labels of the pollutant images; the acquired first image can be uploaded to a cloud database through a mobile communication network to be used as a training sample of the image recognition model, so that the recognition accuracy is improved.
It can be understood that the dishwasher is connected with the cloud database through the mobile communication network, pollutant images shot by each user in practice can be uploaded to the cloud database and then serve as training samples of the image recognition model, so that the image recognition model is continuously updated, accuracy of the image to be the model is improved, and after a certain period of time, the cloud downloads the updated image recognition model to the dishwasher at each user end through an Over The Air (OTA) technology, so that recognition accuracy of the dishwasher is improved, and better experience is brought to the user.
Referring to fig. 11, fig. 11 is a flowchart illustrating step S23 in the cleaning method according to the embodiment of the invention; the determining of the required washing pattern according to the contaminant type in step S23 includes:
step S231, establishing a mapping relation between the pollutant type and the washing mode;
and step S232, matching the washing mode corresponding to the pollutant type according to the mapping relation.
It can be understood that, a mapping relationship between the pollutant types and the washing patterns is established in the corresponding database, for example, washing pattern a1 corresponds to pollutant type a1, washing pattern B1 corresponds to pollutant type B1, and the corresponding washing patterns are matched according to the pollutant types through the mapping relationship by inputting the pollutant types identified in step S22 into the database as Key values (Key values: Key values).
In step S25, i.e., after the pre-washing, it is determined whether the contaminant type corresponding to the washing pattern after the pre-washing has been pre-washed in step S26 based on the second image identifying the dishes.
Referring to fig. 12, fig. 12 is a flowchart illustrating step S26 of the cleaning method according to the second embodiment of the present invention; comparing the first image and the second image to determine the effectiveness of the wash mode comprises:
step S261, comparing the second image according to the first image to determine the type of the removed pollutant;
step S262, matching the types of the removed contaminants through the washing pattern to determine the effectiveness of the washing pattern.
It is understood that, according to the comparison between the first image and the second image, the type of the removed contaminant identified and determined in the first image through step S22 can be analyzed, and the type of the removed contaminant is matched through the washing pattern to determine the effectiveness of the washing pattern, i.e., the secondary determination of step S23.
For a better understanding of the above, it is assumed that the contaminant type of a certain area on the dishes is recognized as contaminant type b1 through the first image before washing, wherein the contaminant type b1 corresponds to a temperature sensitive type of oil contamination, at this time the contaminant type b1 identified from the first image in the execution of step S22 is not necessarily correct, but is merely a result of a preliminary identification, upon matching the washing pattern B1 according to the above-described contaminant type B1 in performing step S23, however, the washing pattern B1 is necessarily directed to the temperature sensitive contaminant B1, and therefore, after the pre-cleaning is performed through the washing pattern B1 in the step 24, if the region corresponding to the type B1 of the contaminant on the dishes is removed by comparing the first image with the second image, it is determined that the type of the contaminant removed is the type B1, i.e., the effectiveness of the washing pattern B1 is determined.
In conclusion, the cleaning method is improved based on the method, the first image is obtained, the corresponding washing mode is preset according to the pollutant type of the first image, the tableware is sequentially pre-cleaned according to the washing mode, and the first image and the second image are compared, so that the effectiveness of the washing mode is determined.
An embodiment of the present invention further provides a cleaning apparatus, including:
an image acquisition device configured to acquire an image of the tableware;
the spray arm is used for spraying a cleaning medium to clean tableware in a cleaning area in the dishwasher;
a processor configured to perform the above cleaning method, i.e. the cleaning method of embodiment one or the cleaning method of embodiment two or a combination thereof.
It will also be understood by those skilled in the art that if the method or the cleaning apparatus of the present invention is simply changed, the above-mentioned methods can be combined with functions added thereto, or the apparatus can be replaced, for example, the model materials of the components can be replaced, the environment of use can be replaced, the positional relationship of the components can be simply replaced, etc.; or the products formed by the components are integrally arranged; or a detachable design; it is within the scope of the present invention to replace the methods and apparatus of the present invention with any method/apparatus/device that combines the components to form a method/apparatus/device with specific functionality.
The embodiment of the invention also provides a dishwasher, which comprises the cleaning device. It should be understood that the dishwasher is not limited to the dimensions, shape and contour, but only needs to use corresponding elements of the washing device to achieve the same or similar functions, and shall also fall within the scope of the present invention.
The washing device further comprises a memory, the above-mentioned washing method for the dishwasher can be stored in the memory as a program unit, and the processor executes the above-mentioned program unit stored in the memory to realize the corresponding function.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more, and the spraying arm of the dish washing machine is controlled to wash the tableware according to the tableware image by adjusting the kernel parameters.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) or a non-volatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
Embodiments also provide a machine-readable storage medium having a program stored thereon, which when executed by a processor implements a washing method for a dishwasher.
The embodiment of the invention also provides a processor which is used for running the program, wherein the program is used for executing the washing method for the dish washing machine when running.
Embodiments of the present invention also provide a computer program product comprising a computer program which, when executed by a processor, implements the above-described washing method for a dishwasher.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow or block of the flowchart illustrations or block diagrams, and combinations of flows or blocks in the flowchart illustrations or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processor to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processor, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processor to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processor to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (13)
1. A washing method for a dishwasher, comprising:
acquiring a first image of dishware within the dishwasher;
identifying a type of contamination on the tableware from the first image;
determining a corresponding washing mode according to the pollutant type;
controlling the dish-washing machine to sequentially pre-wash the tableware according to the washing mode;
acquiring a second image of the dishware in the dishwasher after each pre-wash is completed;
comparing the first image and the second image to determine the effectiveness of the wash mode.
2. The method of claim 1, wherein the contaminant type comprises one of:
temperature-sensitive, pressure-sensitive, and detergent-sensitive.
3. The method of claim 1, wherein said determining a corresponding washing pattern based on said type of contaminant comprises:
establishing a mapping relation between the pollutant types and the washing modes;
matching a washing mode corresponding to the pollutant type according to the mapping relation;
wherein the washing pattern includes any one of detergent, temperature, pressure.
4. The method of claim 1, wherein comparing the first image and the second image to determine the effectiveness of the wash mode comprises:
comparing the second image with the first image to determine the type of contaminant removed;
matching the type of contaminant removed by the wash pattern to determine the effectiveness of the wash pattern.
5. The method of claim 1, wherein said identifying a type of contamination on the tableware from the first image comprises:
establishing a database according to a pollutant image acquired in advance and a pollutant type label of the pollutant image;
pre-training an image recognition model through the database;
inputting the acquired first image into a pre-trained image recognition model to determine the type of the contaminant.
6. A washing device for a dishwasher, comprising:
an image acquisition device configured to acquire an image of the tableware;
a spray arm for spraying a cleaning medium to clean dishware in a cleaning area within the dishwasher;
a processor configured to:
acquiring a first image of dishware within the dishwasher;
identifying a type of contamination on the tableware from the first image;
determining a corresponding washing mode according to the pollutant type;
controlling the dish-washing machine to sequentially wash the tableware according to the washing mode;
acquiring a second image of the dishware in the dishwasher after washing in each washing mode; (ii) a
Comparing the first image and the second image to determine the effectiveness of the wash mode.
7. The cleaning apparatus defined in claim 6, wherein the contaminant type comprises at least one of: temperature-sensitive, pressure-sensitive, and detergent-sensitive.
8. The cleaning apparatus defined in claim 6, wherein the processor being configured to determine a corresponding wash mode based on the type of contaminant comprises the processor being configured to:
establishing a mapping relation between the pollutant types and the washing modes;
matching a washing mode corresponding to the pollutant type according to the mapping relation;
wherein the washing pattern includes any one of detergent, temperature, pressure.
9. The cleaning device of claim 6, wherein the processor being configured to compare the first image and the second image to determine the effectiveness of the wash mode comprises the processor being configured to:
comparing the second image with the first image to determine the type of contaminant removed;
matching the type of contaminant removed by the wash pattern to determine the effectiveness of the wash pattern.
10. The cleaning apparatus defined in claim 6, wherein the processor being configured to identify the type of contamination on the ware from the first image comprises the processor being configured to:
establishing a database according to a pollutant image acquired in advance and a pollutant type label of the pollutant image;
pre-training an image recognition model through the database;
inputting the acquired first image into a pre-trained image recognition model to determine the type of the contaminant.
11. A dishwasher, characterized by comprising a washing device for a dishwasher according to any one of claims 6 to 10.
12. A machine-readable storage medium, characterized in that it has stored thereon instructions for enabling a processor, when executed by said processor, to carry out the method for a dishwasher according to any one of claims 1 to 5.
13. A computer program product comprising a computer program, characterized in that the computer program realizes the method for a dishwasher according to any one of claims 1 to 5 when executed by a processor.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110032060.1A CN112869680A (en) | 2021-01-11 | 2021-01-11 | Washing method for a dishwasher, washing device and dishwasher |
| PCT/CN2022/071288 WO2022148473A1 (en) | 2021-01-11 | 2022-01-11 | Cleaning method and cleaning apparatus for dishwasher, and dishwasher |
| US18/031,148 US20230371779A1 (en) | 2021-01-11 | 2022-01-11 | Cleaning method and cleaning apparatus for dishwasher, and dishwasher |
| DE112022000130.5T DE112022000130T5 (en) | 2021-01-11 | 2022-01-11 | CLEANING METHOD AND DEVICE FOR A DISHWASHER, AND DISHWASHER |
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