Dishwasher and control method, device and readable storage medium thereof

Abstract

The application provides a dishwasher and a control method, device and readable storage medium thereof, the method comprising: irradiating a first light signal to a tableware surface in the dishwasher by using a light beam generating device; and receiving a second light signal reflected by the tableware surface by using a light signal receiving device; since the light signal irradiated to the tableware surface will form a diffuse reflection to interfere with the signal strength and / or signal distribution position of the second light signal due to the oil stains on the tableware surface, the pollution level information of the tableware can be determined according to the signal strength and / or signal distribution position of the second light signal, and then the subsequent working mode of the dishwasher can be determined. The application can accurately determine the pollution level information of the tableware surface, improve the detection precision, avoid the waste of water resources, and improve the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to a dishwasher and a control method, device and readable storage medium thereof. BACKGROUND

[0002] With the continuous improvement of people's material and cultural life, the continuous progress of life and the continuous development of science and technology, the fully automatic dishwasher has gradually entered some families, hotels, restaurants and the like. With the continuous improvement of people's demand, people's requirements for the intelligent degree of the dishwasher are also getting higher and higher.

[0003] The automatic control of the existing dishwasher is to determine the degree of oil stain of tableware according to the rinsing water in the dishwasher by using a turbidity sensor, and to determine the subsequent execution steps of the dishwasher according to the degree of oil stain. However, the degree of oil stain of tableware by detecting the turbidity of rinsing water cannot directly judge the tableware, which will obviously cause the waste of medium-water resources, and the existing turbidity sensor generally has the problem of inaccurate detection, which cannot well meet the needs of users. SUMMARY

[0004] The present application provides a dishwasher and a control method, device and readable storage medium thereof to solve the problem of inaccurate detection and water resource waste caused by the existing dishwasher using a turbidity sensor to detect the turbidity of rinsing water to determine the degree of oil stain of tableware.

[0005] One aspect of the present application provides a control method of a dishwasher, the dishwasher is internally provided with a light beam generating device and a light signal receiving device, the method comprising:

[0006] controlling the light beam generating device to emit a first light signal, the first light signal irradiating to the surface of tableware in the dishwasher;

[0007] acquiring a second light signal received by the light signal receiving device, the second light signal being a light signal reflected after the first light signal irradiating to the surface of tableware;

[0008] determining the pollution degree grade information of the tableware according to the signal intensity and / or signal distribution position of the second light signal;

[0009] determining the corresponding working mode according to the pollution degree grade information, and controlling the dishwasher to perform corresponding operation according to the working mode.

[0010] Further, the determination of the pollution degree grade information of the tableware according to the signal intensity of the second light signal comprises:

[0011] determining whether the signal intensity of the second light signal is less than a preset clean signal intensity threshold;

[0012] if the signal intensity of the second light signal is less than the clean signal intensity threshold, determining the attachment amount of the oil stains on the tableware surface according to a difference between the clean signal intensity threshold and the signal intensity of the second light signal, and determining the contamination level information of the tableware according to the attachment amount of the oil stains on the tableware surface;

[0013] if the signal intensity of the second light signal is greater than or equal to the clean signal intensity threshold, determining that the contamination level information of the tableware is clean level.

[0014] Further, the determination of the contamination level information of the tableware according to the signal distribution position of the second light signal comprises:

[0015] determining whether the signal distribution position of the second light signal is within a preset clean signal distribution position;

[0016] if the signal distribution position of the second light signal is not within the clean signal distribution position, determining the particle size of the oil stains on the tableware surface according to a position offset between the signal distribution position of the second light signal and the clean signal distribution position, and determining the contamination level information of the tableware according to the particle size of the oil stains on the tableware surface;

[0017] if the signal distribution position of the second light signal is within the clean signal distribution position, determining that the contamination level information of the tableware is clean level.

[0018] Further, the determination of the corresponding working mode according to the contamination level information comprises:

[0019] when the contamination level information of the tableware is clean level, determining that the working mode of the dishwasher is standby mode or exit mode;

[0020] when the contamination level information of the tableware is not clean level, determining that the working mode of the dishwasher is washing mode.

[0021] Further, after determining that the working mode of the dishwasher is washing mode, the method further comprises:

[0022] determining a washing control parameter in the washing mode according to the contamination level of the tableware, the washing control parameter comprising one or more of the amount of detergent added, the washing time length, and the washing temperature.

[0023] Further, after determining the corresponding working mode according to the contamination level information and controlling the dishwasher to perform corresponding operation according to the working mode, the method further comprises:

[0024] obtaining second contamination level information of the tableware;

[0025] determining whether the second contamination level information of the tableware reaches a clean level;

[0026] If the clean level is not reached, determining a corresponding second working mode according to the second contamination level information, and controlling the dishwasher to perform corresponding operations according to the second working mode.

[0027] Further, after determining the corresponding working mode according to the contamination level information and controlling the dishwasher to perform corresponding operations according to the working mode, the method further comprises:

[0028] placing a clean specimen tableware on the dishwasher, controlling the light beam generating device to emit a third light signal, and the third light signal irradiates the surface of the specimen tableware in the dishwasher;

[0029] obtaining a fourth light signal received by the light signal receiving device, the fourth light signal being a light signal reflected after the third light signal irradiates the surface of the specimen tableware;

[0030] adjusting the contamination level information threshold standard of the tableware according to the signal intensity and / or signal distribution position of the fourth light signal.

[0031] Another aspect of the present application provides a control device of a dishwasher, the dishwasher being internally provided with a light beam generating device and a light signal receiving device, the device comprising:

[0032] a first control module for controlling the light beam generating device to emit a first light signal, and the first light signal irradiates the surface of the tableware in the dishwasher;

[0033] an acquisition module for acquiring a second light signal received by the light signal receiving device, and the second light signal is a light signal reflected after the first light signal irradiates the surface of the tableware;

[0034] an analysis module for determining the contamination level information of the tableware according to the signal intensity and / or signal distribution position of the second light signal;

[0035] a second control module for determining a corresponding working mode according to the contamination level information, and controlling the dishwasher to perform corresponding operations according to the working mode.

[0036] In addition, another aspect of the present application also provides a dishwasher, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the above control method when executing the program.

[0037] In addition, another aspect of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is configured to execute the steps of the above control method when running.

[0038] The dishwasher and the control method, device and readable storage medium thereof provided by the embodiment of the present application utilize the light beam generating device to irradiate the first light signal to the surface of the tableware in the dishwasher, and utilize the light signal receiving device to receive the second light signal reflected by the surface of the tableware. Since the light signal is irradiated to the surface of the tableware, the oil stain on the surface of the tableware will interfere to form diffuse reflection, which will affect the signal strength and / or signal distribution position of the second light signal. Therefore, the pollution level information of the tableware can be determined according to the signal strength and / or signal distribution position of the second light signal, and the subsequent working mode of the dishwasher can be determined. The present application can accurately determine the pollution level information of the surface of the tableware, improve the detection accuracy, avoid the waste of resources, and improve the user experience.

[0039] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0040] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals are used throughout the several views that follow. In the drawings:

[0041] Figure 1 FIG. 1 is a structural schematic diagram of a dishwasher according to an embodiment of the present application;

[0042] Figure 2 FIG. 2 is a flowchart of a control method of a dishwasher according to an embodiment of the present application;

[0043] Figure 3 FIG. 3 is a structural schematic diagram of a control device of a dishwasher according to an embodiment of the present application.

[0044] Marking description in the figure:

[0045] 1, light beam generating device; 2, light signal receiving device; 3, tableware;

[0046] 301, first control module; 302, acquisition module; 303, analysis module; 304, second control module. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0048] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with the context of the present technology, and should not be interpreted in an idealized or overly formal sense unless specifically defined.

[0049] Figure 1 The structure of the dishwasher according to the embodiments of the present disclosure is schematically shown in the structural diagram of the dishwasher, referring to Figure 1 The dishwasher according to the embodiments of the present disclosure is internally provided with a light beam generating device 1 and a light signal receiving device 2. It should be noted that the relative positions of the light beam generating device 1 and the light signal receiving device 2 are only schematic, and in actual design, the preferred embodiment is that the light signal receiving device 2 can receive both the light directly reflected by the tableware and the light reflected by the tableware 3 through diffuse reflection. It can be either vertically arranged as shown in Figure 1 , or the light signal receiving device 2 can be arranged at any reasonable position capable of receiving the light signal reflected by the surface of the tableware 3.

[0050] Further, it can be known from Figure 1 that, according to the reflection principle of light, when the surface of the tableware 3 is clean, the light beam will be specularly reflected when it is irradiated onto the surface of the tableware 3, and when the surface of the tableware 3 is stained with oil, the light beam will be diffusely reflected when it is irradiated onto the surface of the tableware 3, and the intensity and angle of the reflected light will also differ according to the size and thickness of the particulate matter of the oil stain. Therefore, the control method of the dishwasher according to the embodiments of the present disclosure determines the subsequent execution steps of the dishwasher according to the characteristics of the reflected light after the light beam is irradiated onto the surface of the tableware 3. The detection method according to the embodiments of the present disclosure does not need to use water as a medium, which improves the detection accuracy while avoiding the waste of water resources.

[0051] In addition, the dishwasher according to the embodiments of the present disclosure further comprises a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the steps in each of the dishwasher control method embodiments described above when executing the computer program. For example, Figure 2The steps of the control method of S1-S4 are shown. Alternatively, the functions of the modules / units in the control device embodiment of the dishwasher are implemented, for example Figure 3 The first control module 301, the acquisition module 302, the analysis module 303, and the second control module 304 are shown.

[0052] Figure 2 A flow chart of the control method of the dishwasher in an embodiment of the present application is schematically shown. In the embodiment of the present application, the dishwasher is internally provided with a light beam generating device 1 and a light signal receiving device 2, which are described with reference to Figure 2 The control method of the dishwasher in the embodiment of the present application specifically includes steps S1-S4, which are shown as follows:

[0053] S1, controlling the light beam generating device 1 to emit a first light signal, the first light signal irradiating onto the surface of the tableware 3 in the dishwasher;

[0054] S2, acquiring a second light signal received by the light signal receiving device 2, the second light signal being a light signal reflected after the first light signal irradiating onto the surface of the tableware 3;

[0055] It should be noted that when the light signal receiving device 2 in the embodiment of the present application receives the second light signal, the second light signal is converted into a corresponding electrical signal according to the intensity and position of the second light signal, and the corresponding electrical signal is transmitted to the main control device of the dishwasher after amplification and other operations. Thus, the main control device of the dishwasher determines the signal intensity and signal distribution position of the second light signal according to the size of the received electrical signal and the specific position where the electrical signal occurs.

[0056] S3, determining the contamination level information of the tableware 3 according to the signal intensity and / or signal distribution position of the second light signal;

[0057] In the embodiment of the present application, when the tableware 3 is clean, the signal intensity of the light signal reflected by the tableware 3 is strong, and the signal distribution position is also relatively fixed; when there is oil stain on the surface of the tableware 3, the signal intensity of the light signal reflected by the tableware 3 will be weakened, and the signal distribution position will also be correspondingly offset, so that the contamination level information of the tableware 3 can be analyzed and judged according to the signal intensity and / or signal distribution position in the embodiment of the present application. It should be noted that the contamination level information of the tableware 3 can be judged by analyzing the signal intensity alone, or by analyzing the signal distribution position alone, or by analyzing the signal intensity and the signal distribution position simultaneously.

[0058] Specifically, the pollution degree level information of the tableware 3 can be determined according to a size relationship between the signal intensity of the second light signal and a preset clean signal intensity threshold value, and a position relationship between the signal intensity of the second light signal and a preset clean signal distribution position. The preset clean signal intensity threshold value is the signal intensity of the second light signal when the surface of the tableware 3 is clean, and the preset clean signal distribution position is the signal distribution position of the second light signal when the surface of the tableware 3 is clean. It should be noted that the clean signal intensity threshold value and the clean signal distribution position can also be calibrated and adjusted according to user requirements, and the specific adjustment method will be described in detail in subsequent embodiments.

[0059] Further, the pollution degree level information of the tableware 3 determined according to the signal intensity of the second light signal includes: judging whether the signal intensity of the second light signal is less than a preset clean signal intensity threshold value; if the signal intensity of the second light signal is less than the clean signal intensity threshold value, determining the oil stain adhesion amount on the surface of the tableware 3 according to the difference between the clean signal intensity threshold value and the signal intensity of the second light signal, and determining the pollution degree level information of the tableware 3 according to the oil stain adhesion amount on the surface of the tableware 3; if the signal intensity of the second light signal is greater than or equal to the clean signal intensity threshold value, determining that the pollution degree level information of the tableware 3 is clean level. It should be noted that the pollution degree level information of the tableware 3 determined according to the oil stain adhesion amount on the surface of the tableware 3 also includes determining the pollution degree level information of the tableware 3 according to a pollution degree level information table corresponding to the oil stain adhesion amount.

[0060] Further, the pollution degree level information of the tableware 3 determined according to the signal distribution position of the second light signal includes: judging whether the signal distribution position of the second light signal is within a preset clean signal distribution position; if the signal distribution position of the second light signal is not within the clean signal distribution position, determining the particle size of the oil stain on the surface of the tableware 3 according to the position offset between the signal distribution position of the second light signal and the clean signal distribution position, and determining the pollution degree level information of the tableware 3 according to the particle size of the oil stain on the surface of the tableware 3; if the signal distribution position of the second light signal is within the clean signal distribution position, determining that the pollution degree level information of the tableware 3 is clean level. It should be noted that the pollution degree level information of the tableware 3 determined according to the particle size of the oil stain on the surface of the tableware 3 also includes determining the pollution degree level information of the tableware 3 according to a pollution degree level information table corresponding to the particle size of the oil stain.

[0061] S4, determining a corresponding working mode according to the pollution degree level information, and controlling the dishwasher to perform corresponding operations according to the working mode.

[0062] In the embodiment of the present application, the determining the corresponding working mode according to the pollution level information comprises: when the pollution level information of the tableware 3 is the clean level, determining the working mode of the dishwasher as the standby mode or the exit mode; when the pollution level information of the tableware 3 is not the clean level, determining the working mode of the dishwasher as the washing mode.

[0063] Further, in order to ensure that the dishwasher can achieve good tableware 3 cleaning effect when performing the corresponding washing mode, the embodiment of the present application further comprises: after determining the working mode of the dishwasher as the washing mode, the method further comprises: determining the washing control parameter in the washing mode according to the pollution level of the tableware 3, the washing control parameter comprising one or more of the adding amount of the detergent, the washing time length, and the washing temperature.

[0064] Further, the dishwasher control method of the embodiment of the present application further comprises: after determining the corresponding working mode according to the pollution level information and controlling the dishwasher to perform the corresponding operation according to the working mode, obtaining the second pollution level information of the tableware; judging whether the second pollution level information of the tableware 3 reaches the clean level; if not, determining the corresponding second working mode according to the second pollution level information and controlling the dishwasher to perform the corresponding operation according to the second working mode. That is, the second pollution level information of the tableware 3 is re-judged, and when the second pollution level information does not reach the clean standard, the corresponding working mode is determined according to the second pollution level information, and the dishwasher is controlled to perform the corresponding operation according to the second working mode. Specifically, when the pollution level information of the tableware 3 is not the clean level, the working mode of the dishwasher is determined as the washing mode, and the washing control parameter in the washing mode can be determined according to the pollution level of the tableware 3.

[0065] Further, the dishwasher control method of the embodiment of the present application further comprises a method for adjusting the division threshold standard of the pollution level information, specifically a method for adjusting the clean signal intensity threshold and the clean signal distribution position.

[0066] Specifically, in the embodiment of the present application, after determining the corresponding operation mode according to the pollution level information of the dishes 3, and controlling the dishwasher to perform the corresponding operation according to the operation mode, the method further comprises: placing the clean sample dishes 3 in the dishwasher, controlling the light beam generating device 1 to emit a third light signal, and the third light signal irradiates the surface of the sample dishes 3 in the dishwasher; acquiring a fourth light signal received by the light signal receiving device 2, the fourth light signal is a light signal reflected after the third light signal irradiates the surface of the sample dishes 3; and adjusting the threshold value standard of the pollution level information of the dishes 3 according to the signal intensity and / or signal distribution position of the fourth light signal.

[0067] The threshold value standard of the pollution level information of the dishes 3 is adjusted in the embodiment of the present application, which takes into account that the smoothness of the surface of the dishes 3 of each user is different, and the smoothness of the surface of the dishes 3 will change with the use of the dishes 3, so that the detection of the pollution level information of the dishes 3 is more accurate.

[0068] For the method embodiment, in order to simply describe, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present application is not limited by the order of the described actions, because according to the embodiment of the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions involved are not necessarily necessary for the embodiment of the present application.

[0069] Figure 3 The structure of the control device of the dishwasher in one embodiment of the present application is schematically shown. The dishwasher in the embodiment of the present application is internally provided with a light beam generating device 1 and a light signal receiving device 2, which will be described in detail below. Figure 3 The control device of the dishwasher in the embodiment of the present application specifically comprises a first control module 301, an acquisition module 302, an analysis module 303 and a second control module 304. Wherein:

[0070] The first control module 301 is used for controlling the light beam generating device 1 to emit a first light signal, and the first light signal irradiates the surface of the dishes 3 in the dishwasher;

[0071] The acquisition module 302 is used for acquiring a second light signal received by the light signal receiving device 2, and the second light signal is a light signal reflected after the first light signal irradiates the surface of the dishes 3;

[0072] The analysis module 303 is used for determining the pollution level information of the dishes 3 according to the signal intensity and / or signal distribution position of the second light signal;

[0073] The second control module 304 is configured to determine a corresponding operation mode according to the pollution level information, and control the dishwasher to perform corresponding operation according to the operation mode.

[0074] Further, the analysis module 303 comprises:

[0075] The comparison submodule is configured to determine whether the signal intensity of the second light signal is less than a preset clean signal intensity threshold.

[0076] The level division submodule is configured to, if the signal intensity of the second light signal is less than the clean signal intensity threshold, determine the adhesion amount of the oil stains on the surface of the tableware 3 according to the difference between the clean signal intensity threshold and the signal intensity of the second light signal, and determine the pollution level information of the tableware 3 according to the adhesion amount of the oil stains on the surface of the tableware 3.

[0077] The level division submodule is further configured to, if the signal intensity of the second light signal is greater than or equal to the clean signal intensity threshold, determine that the pollution level information of the tableware 3 is clean level.

[0078] Further,

[0079] The comparison submodule is further configured to determine whether the signal distribution position of the second light signal is within a preset clean signal distribution position.

[0080] The level division submodule is further configured to, if the signal distribution position of the second light signal is not within the clean signal distribution position, determine the particle size of the oil stains on the surface of the tableware 3 according to the position offset between the signal distribution position of the second light signal and the clean signal distribution position, and determine the pollution level information of the tableware 3 according to the particle size of the oil stains on the surface of the tableware 3.

[0081] The level division submodule is further configured to, if the signal distribution position of the second light signal is within the clean signal distribution position, determine that the pollution level information of the tableware 3 is clean level.

[0082] Further, the analysis module 303 comprises:

[0083] The determination submodule is configured to determine that the operation mode of the dishwasher is standby mode or exit mode when the pollution level information of the tableware 3 is clean level, and determine that the operation mode of the dishwasher is washing mode when the pollution level information of the tableware 3 is not clean level.

[0084] Further, the second control module 304 is further configured to determine a washing control parameter in the washing mode according to the pollution level of the tableware 3, and the washing control parameter comprises one or more of the adding amount of the detergent, the washing time length and the washing temperature.

[0085] Further, the control device of the dishwasher according to the embodiment of the present application determines the corresponding operation mode according to the pollution level information, and controls the dishwasher to perform corresponding operation according to the operation mode,

[0086] The first control module 301 is further configured to place the specimen dish 3 with a clean surface into the dishwasher, and control the light beam generating device 1 to emit a third light signal, the third light signal irradiating the surface of the specimen dish 3 in the dishwasher.

[0087] The acquisition module 302 is further configured to acquire a fourth light signal received by the light signal receiving device 2, the fourth light signal being a light signal reflected after the third light signal irradiating the surface of the specimen dish 3.

[0088] The analysis module 303 is further configured to adjust the threshold standard for dividing the pollution level information of the dish 3 according to the signal intensity and / or signal distribution position of the fourth light signal.

[0089] For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.

[0090] The device embodiment described above is only schematic, and the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. According to actual needs, part or all of the modules can be selected to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement it without creative labor.

[0091] The dishwasher, the control method and device thereof and the readable storage medium provided by the embodiment of the present application utilize the light beam generating device 1 to irradiate the first light signal to the surface of the dish 3 in the dishwasher, and utilize the light signal receiving device 2 to receive the second light signal reflected by the surface of the dish 3. Since the light signal irradiated to the surface of the dish 3 will form diffuse reflection to affect the signal intensity and / or signal distribution position of the second light signal due to the interference of the oil stain on the surface of the dish 3, the pollution level information of the dish 3 can be determined according to the signal intensity and / or signal distribution position of the second light signal, and the subsequent operation mode of the dishwasher can be determined. The present application can accurately determine the pollution level information of the surface of the dish 3, improve the detection accuracy, avoid the waste of resources, and improve the user experience.

[0092] In addition, the embodiment of the present application further provides a computer readable storage medium, which stores a computer program, wherein the computer program is arranged to execute the steps of the control method of the dishwasher in the above embodiment when running.

[0093] In the embodiment, the modules / units of the control device of the dishwasher are stored in a computer readable storage medium if they are realized in the form of software function units and sold or used as independent products. Based on such understanding, all or part of the processes in the above embodiment methods can also be completed by computer programs instructing related hardware, and the computer programs can be stored in a computer readable storage medium. The computer programs can implement the steps of the above method embodiments when executed by a processor. The computer programs include computer program codes, which can be in the form of source code, object code, executable files or some intermediate forms. The computer readable medium can include any entity or device capable of carrying the computer program codes, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the computer readable medium can include or exclude contents according to the requirements of legislation and patent practice in different jurisdictions. For example, according to the legislation and patent practice in some jurisdictions, the computer readable medium does not include electric carrier signals and telecommunication signals.

[0094] In the embodiments of the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are only schematic. The division of units or the division is only a logical function division. In actual implementation, additional division can be used, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical or other forms.

[0095] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means to be within the scope of the present application and form different embodiments. For example, in the following claims, any one of the claimed embodiments can be used in any combination.

[0096] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of a dishwasher, characterized by, The dish washing machine is internally provided with a light beam generating device and a light signal receiving device, and the method comprises: controlling the light beam generating device to emit a first light signal, the first light signal irradiating onto a tableware surface in the dish washing machine; acquiring a second light signal received by the light signal receiving device, the second light signal being a light signal reflected after the first light signal irradiating onto the tableware surface; since the intensity and angle of the light reflected by the oil stains on the tableware surface will be different due to the different sizes and thicknesses of the particulate matters in the oil stains, the signal distribution position of the second light signal will be affected by the interference of the oil stains on the tableware surface, and the contamination level information of the tableware is determined according to the signal distribution position of the second light signal; the determination of the contamination level information of the tableware according to the signal distribution position of the second light signal comprises: judging whether the signal distribution position of the second light signal is within a preset clean signal distribution position; if the signal distribution position of the second light signal is not within the clean signal distribution position, then the size of the particulate matters in the oil stains on the tableware surface is determined according to the positional offset between the signal distribution position of the second light signal and the clean signal distribution position, the contamination level information of the tableware is determined according to the size of the particulate matters in the oil stains on the tableware surface, the corresponding working mode is determined according to the contamination level information, and the dish washing machine is controlled to perform corresponding operations in the working mode; if the signal distribution position of the second light signal is within the clean signal distribution position, then it is determined that the contamination level information of the tableware is clean level.

2. The method of claim 1, wherein, the determination of the contamination level information of the tableware according to the signal intensity and the signal distribution position of the second light signal comprises: judging whether the signal intensity of the second light signal is less than a preset clean signal intensity threshold value; if the signal intensity of the second light signal is less than the clean signal intensity threshold value, then the adhesion amount of the oil stains on the tableware surface is determined according to the difference between the clean signal intensity threshold value and the signal intensity of the second light signal, the contamination level information of the tableware is determined according to the adhesion amount of the oil stains on the tableware surface; if the signal intensity of the second light signal is greater than or equal to the clean signal intensity threshold value, then it is determined that the contamination level information of the tableware is clean level.

3. The method according to claim 1 or 2, characterized in that, the determination of the corresponding working mode according to the contamination level information comprises: when the contamination level information of the tableware is clean level, it is determined that the working mode of the dish washing machine is standby mode or exit mode; when the contamination level information of the tableware is not clean level, it is determined that the working mode of the dish washing machine is washing mode.

4. The method of claim 3, wherein, after determining that the working mode of the dish washing machine is washing mode, the method further comprises: determining a washing control parameter in the washing mode according to the contamination level of the tableware, the washing control parameter comprising one or more of the adding amount of the detergent, the washing duration, and the washing temperature.

5. The method of claim 1, wherein, After determining the corresponding working mode according to the pollution level information and controlling the dishwasher to perform corresponding operation according to the working mode, the method further comprises: obtaining second pollution level information of the tableware; judging whether the second pollution level information of the tableware reaches the clean level; if the clean level is not reached, determining the corresponding second working mode according to the second pollution level information and controlling the dishwasher to perform corresponding operation according to the second working mode.

6. The method of claim 1, wherein, After determining the corresponding working mode according to the pollution level information and controlling the dishwasher to perform corresponding operation according to the working mode, the method further comprises: placing the clean tableware as a specimen in the dishwasher, controlling the light beam generating device to emit a third light signal, and the third light signal irradiates the surface of the specimen tableware in the dishwasher; obtaining the fourth light signal received by the light signal receiving device, the fourth light signal being the light signal reflected after the third light signal irradiates the surface of the specimen tableware; adjusting the threshold standard of the pollution level information of the tableware according to the signal intensity and / or signal distribution position of the fourth light signal.

7. A dishwasher control device for implementing the method according to any one of claims 1 to 6, characterized in that The dishwasher is internally provided with a light beam generating device and a light signal receiving device, and the device comprises: a first control module for controlling the light beam generating device to emit a first light signal, and the first light signal irradiates the surface of the tableware in the dishwasher; a obtaining module for obtaining the second light signal received by the light signal receiving device, and the second light signal is the light signal reflected after the first light signal irradiates the surface of the tableware; an analysis module for determining the pollution level information of the tableware according to the signal intensity and / or signal distribution position of the second light signal; a second control module for determining the corresponding working mode according to the pollution level information and controlling the dishwasher to perform corresponding operation according to the working mode.

8. A dishwasher, characterized in that The computer readable storage medium stores a computer program, wherein the computer program is configured to execute the steps of the method of any one of claims 1-6 when running.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, wherein the computer program is configured to execute the steps of the method of any one of claims 1-6 when running.

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