Control method for self-cleaning of washing device, washing device, and storage medium

Abstract

This invention discloses a self-cleaning control method for a washing device, a washing device, and a storage medium. The self-cleaning control method for the washing device includes: after the washing device finishes washing, determining the cumulative amount of residual dirt in the washing device during the current cycle, wherein the cumulative amount of residual dirt in the current cycle is determined based on the cumulative amount of residual dirt in the previous cycle, washing temperature, washing time, running interval time, the amount of residual dirt in the current cycle, and disinfectant solution; determining whether the cumulative amount of residual dirt in the current cycle is greater than a self-cleaning trigger threshold; and if the determination result is yes, sending a self-cleaning command.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning, and in particular relates to a self-cleaning control method for a washing device, a washing device, and a storage medium. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, more and more washing devices have freed people from the complicated cleaning work. They can not only keep the home, office and other environments clean, but also allow people to enjoy more free time, and are favored by people.

[0003] At present, there is a risk that some dirt will remain in washing devices such as washing machines and dishwashers during the washing process. After long-term use, the remaining dirt will breed a large number of bacteria and affect the washing effect. In the prior art, some washing devices have a self-cleaning function, but the triggering of the self-cleaning function mostly depends on the user's initiative, and there is a lack of objective evaluation basis for the timing of self-cleaning. Sometimes the self-cleaning effect cannot reach the ideal state due to long-term non-triggering, and sometimes excessively frequent triggering leads to waste of water and electricity; a small number of washing devices have a self-cleaning reminder function, but most of them are based on a single dimension of total operating time. The contamination of washing devices is related to multiple factors, and the judgment of a single dimension is relatively simple but the accuracy is relatively low. Summary of the invention

[0004] The present invention provides a control method for self-cleaning of a washing device, a washing device and a storage medium, so as to solve the problem in the prior art that the self-cleaning function of the washing device has low accuracy or lacks objective evaluation basis for the timing of self-cleaning.

[0005] In order to achieve the above object, the present invention provides a method for controlling the self-cleaning of a washing device, the method comprising:

[0006] After the washing device finishes washing, determining the accumulated amount of dirt remaining in the washing device, wherein the accumulated amount of dirt remaining in the washing device is determined based on the accumulated amount of dirt remaining in the previous time, the washing temperature, the washing time, the operation interval time, the accumulated amount of dirt remaining in the current time, and the sterilizing liquid;

[0007] Determine whether the accumulated stain residue at that time is greater than the self-cleaning trigger threshold;

[0008] When the judgment result is yes, a self-cleaning instruction is sent.

[0009] Preferably, in the control method for self-cleaning of the washing device, the step of determining the accumulated amount of stain residue in the washing device after the washing device finishes washing comprises:

[0010] After the washing device finishes washing, the last accumulated dirt residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current dirt residue, and sterilizing liquid usage correction coefficient are obtained;

[0011] The cumulative amount of stains remaining in the washing device is determined according to the last accumulated amount of stains remaining, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the amount of stains remaining in the current time, and the sterilizing liquid usage correction coefficient. The calculation formula of the cumulative amount of stains remaining in the washing device in the current time is as follows:

[0012] The mth cumulative amount of dirt residue = {(m-1)th cumulative amount of dirt residue * temperature coefficient * washing time coefficient * operation interval time correction coefficient + mth amount of dirt residue} * sterilizing liquid usage correction coefficient;

[0013] The current cumulative stain residue is the mth cumulative stain residue obtained after the mth washing.

[0014] The last cumulative stain residue amount is the m-1th cumulative stain residue amount obtained after the m-1th washing is completed;

[0015] The current stain residual amount is the mth stain residual amount obtained after the mth washing is completed.

[0016] Preferably, in the control method for self-cleaning of the washing device, the step of obtaining the last accumulated stain residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current stain residue, and sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0017] After the washing device has finished washing, determine the equivalent temperature during the washing process;

[0018] Determining the temperature coefficient according to the equivalent temperature and the corresponding relationship between the preset equivalent temperature and the temperature coefficient;

[0019] Wherein, the calculation formula of the equivalent temperature is:

[0020] The equivalent temperature of the current main wash process = the integral of the temperature change of the current main wash process and the washing time / the total washing process duration t1 of the current main wash process.

[0021] Preferably, in the control method for self-cleaning of the washing device, the step of obtaining the last accumulated stain residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current stain residue, and sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0022] After the washing device finishes washing, the washing duration coefficient is determined according to the ratio of the actual duration of the main washing process of the washing device at that time / the first preset duration of the main washing process.

[0023] Preferably, in the control method for self-cleaning of the washing device, the step of obtaining the last accumulated stain residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current stain residue, and sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0024] After the washing device finishes washing, the operation interval time correction coefficient is determined according to the operation interval of the washing device.

[0025] Preferably, in the control method for self-cleaning of the washing device, the step of obtaining the last accumulated stain residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current stain residue, and sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0026] After the washing device has finished washing, the sterilizing liquid usage correction factor is determined according to the usage of the sterilizing liquid;

[0027] Among them, the determination of the correction factor for the use of sterilization solution includes:

[0028] When the sterilizing liquid is used, the sterilizing liquid usage correction coefficient is a preset correction value less than 1;

[0029] When the sterilizing solution is not used, the sterilizing solution usage correction factor is 1.

[0030] Preferably, in the control method for self-cleaning of the washing device, the step of obtaining the last accumulated stain residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current stain residue, and sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0031] After the washing device has finished washing, the amount of residual stains for that time is determined based on the comprehensive stain coefficient for that time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinse correction coefficient;

[0032] Among them, the amount of stains remaining at that time = the comprehensive stain coefficient of that time * detergent dosage correction coefficient * water consumption correction coefficient * rinsing correction coefficient.

[0033] Preferably, in the control method for self-cleaning of the washing device, the step of determining the amount of residual stains of the current time according to the comprehensive stain coefficient of the current time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinsing correction coefficient after the washing device finishes washing includes:

[0034] After the washing device finishes washing, the comprehensive stain coefficient of the current time is determined according to the comprehensive stain concentration obtained in real time during the washing process of the current main wash;

[0035] The calculation formula of the comprehensive stain coefficient is:

[0036] The comprehensive stain coefficient of this time =

[0037] t1 is the total washing time of the main wash process.

[0038] SI(t) is the comprehensive stain concentration obtained in real time during the main wash process at time t.

[0039] Preferably, in the control method for self-cleaning of the washing device, the step of determining the amount of residual stains of the current time according to the comprehensive stain coefficient of the current time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinsing correction coefficient after the washing device finishes washing includes:

[0040] After the washing device has finished washing, the detergent dosage correction coefficient is determined according to the comprehensive stain concentration obtained in real time during the washing process of the main wash;

[0041] Wherein, the calculation formula of the detergent dosage correction coefficient is:

[0042] Detergent dosage correction coefficient = actual total amount of detergent dosage / basic detergent dosage threshold.

[0043] Preferably, in the control method for self-cleaning of the washing device, the step of determining the amount of residual stains of the current time according to the comprehensive stain coefficient of the current time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinsing correction coefficient after the washing device finishes washing includes:

[0044] After the washing device is finished washing, determine the water consumption correction factor;

[0045] Wherein, the calculation formula of the water consumption correction coefficient is:

[0046] Water consumption correction coefficient = actual total water intake during the main wash process / preset water consumption threshold during the main wash process.

[0047] Preferably, in the control method for self-cleaning of the washing device, the step of determining the amount of residual stains of the current time according to the comprehensive stain coefficient of the current time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinsing correction coefficient after the washing device finishes washing includes:

[0048] After the washing device finishes washing, the rinse correction coefficient is determined according to the number of rinses in the current washing process and the dilution ratio of the stains by a single round of rinsing;

[0049] Wherein, the calculation formula of the rinse correction coefficient is:

[0050] Rinse correction factor = Nr inse n ,

[0051] n is the number of rinses in the washing process, and Nrinse is the dilution ratio of stains in a single round of rinse.

[0052] In order to achieve the above object, the present invention provides a washing device, the washing device comprising:

[0053] at least one processor; and,

[0054] a memory communicatively connected to the at least one processor; wherein,

[0055] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned control method for self-cleaning of the washing device.

[0056] In order to achieve the above-mentioned object, the present invention provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above-mentioned control method for self-cleaning of a washing device is implemented.

[0057] The technical solution provided by the present invention has the following advantages:

[0058] The present invention provides a control method for self-cleaning of a washing device. In this method, the accumulated stain residue is determined based on the last accumulated stain residue, washing temperature, washing time, operation interval, the current stain residue, and sterilizing liquid. This makes the self-cleaning function more accurate.

[0059] Furthermore, full consideration is given to the difference between past accumulated stain residues and newly added stain residues, and the influence of temperature, washing time, and washing interval time on past accumulated stain residues. After the past accumulated stain residues are corrected by the above-mentioned temperature coefficient, washing time coefficient, and washing interval time, the newly added stain residues in this round are added to obtain the total stain residue of the washing device after m washes. The accumulated stain residues are continuously updated during the use of the washing device, which is more reasonable than the simple addition of the traditional single-dimensional stain residues.

[0060] Furthermore, the present invention takes into account the combined impact of the presence or absence of sterilizing liquid on past accumulated stain residues and new stain residues, ensuring the accuracy of the accumulated stain residue data used to determine the triggering of the self-cleaning reminder and store it for subsequent iterative calculations after each washing program is run. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0062] Figure 1 This is a diagram showing the relationship between the temperature and the washing time during the main washing process of the present invention;

[0063] Figure 2 A schematic diagram of a first embodiment of a method for controlling self-cleaning of a washing device according to the present invention;

[0064] Figure 3 A schematic diagram of a second embodiment of a method for controlling self-cleaning of a washing device according to the present invention;

[0065] Figure 4 A schematic diagram of an embodiment of a washing device.

[0066] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0067] In the embodiments of the present invention, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0068] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0069] In the embodiments of the present invention, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0070] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, it can be understood by those skilled in the art that in the embodiments of the present invention, many technical details are proposed in order to enable the reader to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present invention can also be implemented. The division of the following embodiments is for the convenience of description and should not constitute any limitation on the specific implementation of the present invention. The various embodiments can be combined and referenced with each other under the premise of no contradiction.

[0071] This embodiment relates to a control method for self-cleaning of a washing device, which is applied to washing devices such as washing machines, dishwashers, etc., which are not listed here one by one. The washing device includes a cleaning container for washing items to be cleaned, which may be cleaning clothes, etc.

[0072] The following is an explanation of the implementation details of the self-cleaning control method of the washing device according to the first embodiment of the present invention. The following content is only the implementation details provided for the convenience of understanding and is not necessary for the implementation of this solution.

[0073] The specific process of this implementation is as follows: Figure 2 As shown, specifically including:

[0074] Step S100, after the washing device finishes washing, determining the accumulated amount of dirt remaining in the washing device, wherein the accumulated amount of dirt remaining in the washing device is determined based on the accumulated amount of dirt remaining in the previous time, washing temperature, washing time, operation interval time, the accumulated amount of dirt remaining in the current time, and sterilizing liquid;

[0075] It should be noted that the current cumulative stain residue amount is the accumulated stain residue amount after the mth washing; the previous cumulative stain residue amount is the accumulated stain residue amount after the m-1th washing.

[0076] Step S200, determining whether the accumulated dirt residue at the time is greater than the self-cleaning trigger threshold;

[0077] It should be understood that the self-cleaning trigger threshold may be a factory setting or may be user-defined, and no specific limitation is made herein.

[0078] Step S300: When the judgment result is yes, a self-cleaning instruction is sent.

[0079] It should be understood that when the accumulated stain residue is greater than the self-cleaning trigger threshold, a self-cleaning instruction is sent, which may be to send a self-cleaning instruction to the washing device to control the washing device to self-clean, or to send a self-cleaning instruction to the washing device to remind the user to perform self-cleaning. It may also be that if the user performs a self-cleaning operation, the mth accumulated stain residue in the memory area is reset to 0, and the accumulated number of self-cleaning reminders is reset to 0; if the user ignores the reminder and does not perform a self-cleaning operation, the accumulated number of self-cleaning reminders is +1, and the accumulated stain residue storage value remains unchanged, until the accumulated number of self-cleaning reminders reaches 3 times and the user ignores the reminder and does not perform a self-cleaning operation, the mth accumulated stain residue is reset to 0, and the accumulated number of self-cleaning reminders is reset to 0.

[0080] The present invention provides a control method for self-cleaning of a washing device. In this method, the accumulated stain residue is determined based on the last accumulated stain residue, washing temperature, washing time, operation interval, the current stain residue, and sterilizing liquid. This makes the self-cleaning function more accurate.

[0081] Furthermore, full consideration is given to the difference between past accumulated stain residues and newly added stain residues, and the influence of temperature, washing time, and washing interval time on past accumulated stain residues. After the past accumulated stain residues are corrected by the above-mentioned temperature coefficient, washing time coefficient, and washing interval time, the newly added stain residues in this round are added to obtain the total stain residue of the washing device after m washes. The accumulated stain residues are continuously updated during the use of the washing device, which is more reasonable than the simple addition of the traditional single-dimensional stain residues.

[0082] Taking a washing machine as an example, when a user frequently uses high temperature and long time washing, the accumulated stains on the inner surface of the washing device will be better cleaned, and the accumulated stains after the mth wash will be much less than the accumulated stains after the mth wash when the washing machine is only used occasionally and the normal temperature default time or ultra-fast washing is used. The cumulative stain residue calculation method provided by the present invention can dynamically and flexibly adjust the accumulated stain residue according to the actual plan of the user using the washing machine. Compared with the traditional simple accumulation of single stain residues to obtain the total stain residue, it is closer to reality and more accurate in determining the self-cleaning reminder.

[0083] Furthermore, the present invention takes into account the combined impact of the presence or absence of sterilizing liquid on past accumulated stain residues and new stain residues, ensuring the accuracy of the accumulated stain residue data used to determine the triggering of the self-cleaning reminder and store it for subsequent iterative calculations after each washing program is run.

[0084] like Figure 2 As shown, the present invention relates to a second embodiment of a method for controlling self-cleaning of a washing device, wherein step S100 comprises:

[0085] Step S110, after the washing device finishes washing, the last accumulated amount of dirt residue, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the current amount of dirt residue, and the sterilizing liquid usage correction coefficient are obtained;

[0086] It should be understood that there are many factors that affect the degree of contamination of a washing device during long-term use, which may be one or more of the changes in stain concentration during the washing process, the amount of detergent added, the washing time, the washing temperature, the amount of water used, the number of rinses, the interval between washing program operations, the amount of sterilization liquid added, etc.

[0087] Step S120, according to the last accumulated stain residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current stain residue, and sterilizing liquid usage correction coefficient, the current accumulated stain residue of the washing device is determined. The calculation formula of the current accumulated stain residue of the washing device is as follows:

[0088] The mth cumulative amount of dirt residue = {(m-1)th cumulative amount of dirt residue * temperature coefficient * washing time coefficient * operation interval time correction coefficient + mth amount of dirt residue} * sterilizing liquid usage correction coefficient;

[0089] The current cumulative stain residue is the mth cumulative stain residue obtained after the mth washing.

[0090] The last cumulative stain residue amount is the m-1th cumulative stain residue amount obtained after the m-1th washing is completed;

[0091] The current stain residual amount is the mth stain residual amount obtained after the mth washing is completed.

[0092] It should be understood that when m=1, the first cumulative stain residue amount is the stain residue amount calculated in the first washing process;

[0093] When m=2, the second cumulative stain residue is the value of the first cumulative stain residue corrected by the temperature coefficient and washing time coefficient of this round of washing plus the newly added stain residue in this round of washing.

[0094] …and so on.

[0095] It should be noted that the newly added stain residue amount in the current round of washing is the stain residue amount of the current washing, which is the dirt that is cleaned out in this round of washing compared to the previous round of washing.

[0096] (1) Determination of temperature coefficient

[0097] More specifically, the method for determining the temperature coefficient includes:

[0098] Step S1211, after the washing device finishes washing, determining the equivalent temperature of the current washing process;

[0099] It should be understood that the higher the washing temperature during the washing process, the better the residual cleaning effect on accumulated stains. Therefore, the higher the equivalent temperature during the washing process, the smaller the temperature coefficient.

[0100] Step S1212, determining the temperature coefficient according to the equivalent temperature and the corresponding relationship between the preset equivalent temperature and the temperature coefficient;

[0101] Wherein, the calculation formula of the equivalent temperature is:

[0102] The equivalent temperature of the current main wash process = the integral of the temperature change of the current main wash process and the washing time / the total washing process duration t1 of the current main wash process.

[0103] More specifically,

[0104] T(t) is the water temperature obtained in real time at time t during a single washing process. T(t) is obtained in real time through a temperature sensor. Since the temperature often changes dynamically during the washing process, the change in temperature will increase the movement rate of molecules and accelerate the disintegration of the stains that have remained on the inner wall of the washing device into the water, and further kill the bacteria and other microorganisms produced by the residual stains. The increase in washing temperature has caused the amount of stains that originally remained on the inner wall of the washing device to decrease to a certain extent. The introduction of the temperature coefficient factor can well correct the effect of the current round of washing temperature on the amount of stains that have remained on the inner wall of the washing device in the past, truly reflecting the changes in the total amount of stains on the inner wall of the washing device, and providing better guidance for the triggering of self-cleaning.

[0105] It should be noted that the main wash process is the process from the beginning of the main wash water intake to the end of the main wash water discharge. The corresponding relationship between the equivalent temperature and the temperature coefficient can be preset, as shown in Table 1. Figure 1 As shown, Figure 1 The diagram shows the relationship between the temperature and washing time during the main wash process. Figure 1 The shaded area indicates the integral of temperature over time during the washing process.

[0106] Table 1 Correspondence between equivalent temperature and temperature coefficient

[0107] Equivalent temperature Temperature coefficient Below 40℃ 100％ 40℃-60℃ 86％ 60℃-80℃ 67％ Above 80℃ 54％

[0108] (2) Determination of washing time coefficient

[0109] More specifically, the method for determining the washing time coefficient includes:

[0110] After the washing device finishes washing, determining a washing duration coefficient according to a ratio of the actual duration of the main washing process of the washing device at that time / a first preset duration of the main washing process;

[0111] The calculation formula of the washing time coefficient is:

[0112] Washing duration coefficient = a1n (actual duration when the main wash process is run for the second time / first preset duration of the main wash process) + b.

[0113] Wherein, a and b are coefficients, and the values ​​of a and b can also be determined according to actual calculations, and are not specifically limited here.

[0114] It should be noted that, taking a washing machine as an example, a is -0.286, and b is 1.10156. When the laundry is dirty, the washing time of the washing machine is preset to 20 minutes during the main wash process. Since the intelligent judgment logic or the manual increase of the time logic will increase the washing time, the washing time of the main wash is increased to 30 minutes. When the actual time of the main wash process / the first preset time of the main wash process is 30 minutes / 20 minutes=1.5, the washing time coefficient is -0.286ln1.5+1.10156. In other embodiments, the washing time coefficient can also be based on the ratio of the actual time of the main wash process to the first preset time of the main wash process, and the washing time coefficient is found in the pre-established correspondence between the ratio and the washing time coefficient.

[0115] The washing time represents the time that the water containing detergent is in contact with the inner surface of the washing device. The longer the contact time, the higher the probability that the detergent will collide with the residual stains on the inner surface of the washing device and be washed away. By further correcting the washing time, the influence of the current washing time on the accumulated residual stains can be obtained, which truly reflects the changes in the total amount of stains on the inner wall of the washing device, providing better guidance for triggering self-cleaning.

[0116] In addition, washing time and washing temperature will jointly affect the residual effect of stains in the water body on the inner side of the washing device. The higher the washing temperature, the more frequent the molecular movement, and the residues accumulated on the inner side of the washing device will be easier to wash off. The longer the washing time, the better the elution effect, so that the rate of increase of past residual dirt on the inner side of the washing device during the round is effectively reduced.

[0117] (3) Determination of the operating interval correction coefficient

[0118] The method for determining the line interval time correction coefficient includes:

[0119] After the washing device has finished washing, the operation interval time correction coefficient is determined according to the operation interval of the washing device;

[0120] The calculation formula of the running interval correction coefficient is:

[0121] Operation interval correction factor = ce d运行间隔 ;

[0122] The unit of the operation interval is day;

[0123] c and d are coefficients, respectively. The values ​​of c and d can also be determined according to actual calculations and are not specifically limited here. In this embodiment, c is 0.9906 and d is 0.0313.

[0124] The running interval is the time interval between the start of the mth wash and the end of the m-1th wash.

[0125] It should be noted that the interval time of the washing program operation will affect the amount of bacteria that the accumulated residual stains will breed in the device when the washing device is not in use, greatly increasing the degree of contamination on the inner side of the washing device. The longer the operation interval, the greater the operation interval correction coefficient. When the washing device is in a static and unused state, the stains remaining on the inner wall will breed a large number of bacteria in a dark and humid environment and continue to accumulate pollution, which will greatly affect the total accumulated pollution residue on the inner wall of the washing device from the previous (m-1) washes. By further correcting the operation interval, the effect of the operation interval on the accumulated past stain residue can be obtained, which truly reflects the changes in the total amount of stains on the inner wall of the washing device, providing better guidance for triggering self-cleaning.

[0126] (4) Determination of the correction factor for the use of sterilizing solution

[0127] The method for determining the correction coefficient of the sterilization solution includes:

[0128] After the washing device has finished washing, the sterilizing liquid usage correction factor is determined according to the usage of the sterilizing liquid;

[0129] Among them, the determination of the correction factor for the use of sterilization solution includes:

[0130] When the sterilizing liquid is used, the sterilizing liquid usage correction coefficient is a preset correction value less than 1;

[0131] When the sterilizing solution is not used, the sterilizing solution usage correction factor is 1.

[0132] It should be noted that when used for sterilization, the correction coefficient for the use of sterilizing liquid can be 0.8 or 0.7, and can also be set according to the use of different sterilizing liquids. The specific value is related to the brand of sterilizing liquid and can be preset. Whether the sterilizing liquid is used can be sensed by the placement of the sterilizing tank of the washing device or can be set manually. (The sterilizing liquid can effectively kill bacteria and inhibit further contamination of the total residual stains on the inner surface of the washing device. It can also have a good antibacterial effect on the newly added stain residues. Therefore, the sterilizing liquid use correction coefficient is directly used to correct the mth cumulative stain residue and obtain a quantitative degree of contamination that can be used to evaluate whether the self-cleaning program needs to be run. Taking a washing machine as an example, when the user frequently uses sterilizing liquid during the washing process, the bacterial growth and spread of pollution in the washing machine are effectively suppressed, and the cumulative stain residue will be less than the case when no sterilizing liquid is used for the same number of washings.

[0133] The amount of sterilizing liquid added will affect the rate of increase of the residual amount of stains in the past washing water on the inner side of the washing device during each round. The accumulated residual stains will breed bacteria in the washing device when it is not in use, and the addition of sterilizing liquid will effectively inhibit this process.

[0134] (5) Determination of the amount of stain residue at that time

[0135] The method for determining the residual amount of the stain at that time includes:

[0136] After the washing device has finished washing, the amount of residual stains for that time is determined based on the comprehensive stain coefficient for that time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinse correction coefficient;

[0137] Among them, the amount of stains remaining at that time = the comprehensive stain coefficient of that time * detergent dosage correction coefficient * water consumption correction coefficient * rinsing correction coefficient.

[0138] 1) Determination of the comprehensive stain coefficient

[0139] The method for determining the comprehensive stain coefficient at that time includes:

[0140] After the washing device finishes washing, the comprehensive stain coefficient of the current time is determined according to the comprehensive stain concentration obtained in real time during the washing process of the current main wash;

[0141] The calculation formula of the comprehensive stain coefficient is:

[0142] The comprehensive stain coefficient of this time =

[0143] t1 is the total washing time of the main wash process.

[0144] SI(t) is the comprehensive stain concentration obtained in real time during the main wash process at time t.

[0145] It should be understood that the comprehensive stain concentration can reflect the comprehensive concentration of various types of stains in the water body during a single washing process. These stains are washed from the objects to be cleaned into the water body by the washing device. These stains in the water body include suspended particles, water-soluble stains, suspended droplets, etc., which will have certain residues during the contact with the inner side of the washing device, and these residues will directly increase the degree of contamination of the washing device in that round.

[0146] The comprehensive stain concentration is collected by a stain index sensor installed in the water body of the washing device, and the comprehensive stain concentration of the water quality during the washing process can be obtained in real time. Since the dirt is gradually washed from the items to be cleaned into the water body of the washing device during the washing process, the calculation of the comprehensive stain coefficient fully considers the dynamic process of the washing device being contaminated by the stains washed into the water body during the washing process. The comprehensive stain index information of the water body obtained in real time is used to quantify the pollution to the washing device through integration. This quantification method is more accurate and closer to the facts than the traditional single value.

[0147] 2) Determination of detergent dosage correction factor

[0148] The method for determining the detergent dosage correction coefficient includes:

[0149] After the washing device has finished washing, the detergent dosage correction coefficient is determined according to the comprehensive stain concentration obtained in real time during the washing process of the main wash;

[0150] Wherein, the calculation formula of the detergent dosage correction coefficient is:

[0151] Detergent dosage correction coefficient = actual total amount of detergent dosage / basic detergent dosage threshold.

[0152] It should be understood that the amount of detergent added will indirectly affect the amount of stains in the water body remaining on the inner side of the washing device. The detergent can effectively wrap or disintegrate some of the dirt, so that the amount of dirt remaining on the inner side of the washing device during the round is effectively reduced.

[0153] The actual total amount of detergent added is calculated by the automatic detergent addition amount + the manual detergent addition amount, wherein the automatic detergent addition amount can be obtained by the running time of the dispensing device * the dispensing rate, and the manual detergent addition amount can be obtained passively by the user input into the main control of the washing device, or actively by the washing device through weighing the manual dispensing slot.

[0154] The basic detergent delivery threshold can be factory settings or user-defined. Taking the mixed washing program of a 10kg washing machine as an example, the basic detergent delivery threshold for mixed washing can be set to a medium delivery amount of 20mL under the commonly used low load weight condition. When the clothes are loaded with more clothes and there are more stains, the washing machine will increase the delivery of detergent as appropriate during the washing process. The user can manually deliver more detergent based on the actual situation, or the washing device can automatically deliver more detergent based on the load weighing. At this time, the detergent delivery correction coefficient will be >1. For example, when the washing machine automatically judges that 30mL of laundry detergent is actually delivered according to the program, and the user manually delivers 10mL, the detergent delivery correction coefficient will be: (30mL+10mL) / 20mL=2. Since detergent contains a large number of components that can wrap or react with stains, the delivery of detergent will reduce the efficiency of stains in the water body to pollute the washing device. The introduction of the detergent delivery correction coefficient takes into account the negative effect of the detergent delivery amount on the pollution of the washing device. The use of the detergent delivery correction coefficient will make the calculation of the residual amount of stains in the washing device more accurate and reliable.

[0155] 3) Determination of water consumption correction coefficient

[0156] The method for determining the water consumption correction coefficient includes:

[0157] After the washing device is finished washing, determine the water consumption correction factor;

[0158] Wherein, the calculation formula of the water consumption correction coefficient is:

[0159] Water consumption correction coefficient = actual total water intake during the main wash process / preset water consumption threshold during the main wash process.

[0160] It should be understood that the amount of water used will affect the amount of stains in the water body remaining on the inner side of the washing device. The greater the amount of water used, the larger the area of ​​water that contacts the inside of the washing device under the same comprehensive stain concentration conditions, and the more stains will remain in the round.

[0161] The basic water consumption threshold can be factory set or set by the user according to needs.

[0162] The water consumption correction coefficient is obtained by the actual total amount of water inflow during the main wash process of the washing device / the basic water consumption threshold. The actual total amount of water inflow during the main wash process of the washing device includes the sum of the initial water inflow and the supplementary water inflow during the main wash process. The actual total amount of water inflow during the main wash process can be measured by the flow meter in the washing device, or calculated by the water inflow rate*program control water inflow time. In this embodiment, the basic water consumption threshold is set by the washing device at the factory. Taking the mixed washing program of a 10kg washing machine as an example, the basic water consumption threshold can be set to a medium water level of 12L under the commonly used low load weight condition. When a large amount of clothes made of easily absorbent materials are added to the washing machine, causing the program to automatically determine and actually execute 18L of water inflow, the water consumption correction coefficient is calculated as 18L / 12L=1.5 at this time. The water consumption determines the total area of ​​the water body containing the washed stains that contacts the inner surface in the washing device, thereby affecting the amount of stains remaining in the washing device. The water consumption correction coefficient is introduced to take into account the influence of the surface area of ​​the stain residue on the total amount of stain residue, and to correct it so as to more accurately calculate the amount of stain residue in the current wash.

[0163] 4) Determination of rinsing correction factor

[0164] The method for determining the rinse correction coefficient includes:

[0165] After the washing device finishes washing, the rinse correction coefficient is determined according to the number of rinses in the current washing process and the dilution ratio of the stains by a single round of rinsing;

[0166] Wherein, the calculation formula of the rinse correction coefficient is:

[0167] Rinse correction factor = Nr inse n ,

[0168] n is the number of rinses in the washing process, and Nrinse is the dilution ratio of stains in a single round of rinse.

[0169] It should be understood that the number of rinses will affect the amount of stains in the water body remaining on the inner side of the washing device. As the number of rinses increases, the amount of stains remaining in each round will decrease exponentially. The more rinses are performed, the less stains remain in each round.

[0170] It is generally related to the water intake of the rinse program and the moisture content after drainage and dehydration. Taking the laundry device as an example, the calculation formula for the stain dilution ratio of rinse is:

[0171] Nrinse = (load amount * moisture content after dehydration) / (single round rinsing water intake + load amount * moisture content after dehydration).

[0172] in,

[0173] The load capacity can be measured by the weighing system of the washing device or input by the user;

[0174] The moisture content after dehydration is related to the clothing material and the dehydration speed. The influence of clothing material and dehydration speed on the final moisture content is obtained through experiments as the data in the following table: moisture content after dehydration = clothing material influence factor * dehydration speed influence factor. The clothing material can be automatically identified by the washing device or input by the user, and the dehydration speed can be obtained through the sensor.

[0175] The clothing material influence factor can be obtained by querying the corresponding relationship between the pre-set clothing material and the clothing material influence factor. For example, the clothing material influence factor corresponding to pure cotton material is 100%, the clothing material influence factor corresponding to chemical fiber material is 40%, the clothing material influence factor corresponding to silk material is 50%, the clothing material influence factor corresponding to wool material is 90%, and the clothing material influence factor corresponding to mixed material is 80%.

[0176] The dehydration speed influencing factor = 3*10-7 (dehydration speed)2-0.0009*dehydration speed+1.2603, wherein the unit of the dehydration speed is rpm (revolutions per minute).

[0177] The water intake for a single round of rinsing can be measured by the flow meter in the washing device, or calculated by the water intake flow rate * water intake time.

[0178] Taking a load of 3kg of cotton cloth and a high-speed dehydration speed of 1200rpm as an example, by calculating the dehydration influencing factor and plugging it into the formula, the moisture content after dehydration is approximately 100%*60%=60%. The water intake for a single round of rinsing is 13.2L, then the stain dilution ratio Nrinse=(3kg*60%) / (13.2kg+3kg*60%)=10%.

[0179] Since the rinsing process is described as a gradient dilution process from the mathematical model, the rinsing correction coefficient is obtained by multiplying the dilution ratio of the stains in n single-round rinsing. The number of rinses in a single complete washing process can be set by the washing device factory or customized by the user. The rinsing process has a dilution and flushing effect on the surface stains remaining on the inner wall of the washing device during a single washing process. The introduction of the rinsing correction coefficient can more accurately calculate the amount of stains remaining in the current washing.

[0180] In addition, when the comprehensive stain concentration of the water quality at the end of rinsing can be obtained through the stain index sensor at the end of the entire rinsing process, the comprehensive stain coefficient of the time * the rinse correction coefficient in the formula as a whole can also be simply replaced by the comprehensive stain concentration of the water quality at the end of rinsing (stain sensor SI reading). At this time, the comprehensive stain coefficient of the time = the comprehensive stain concentration of the water quality at the end of rinsing (stain sensor SI reading), and the rinse correction coefficient = 1.

[0181] In order to achieve the above object, the present invention also provides a washing device, such as Figure 4 As shown, the washing device includes at least one processor 401; and a memory 402 that is communicatively connected to the at least one processor 401; wherein the memory 402 stores instructions that can be executed by the at least one processor 401, and the instructions are executed by the at least one processor 401 so that the at least one processor 401 can execute the above-mentioned control method for self-cleaning of the washing device.

[0182] The memory 402 and the processor 401 are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors 401 and the memory 402 together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor 401 is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor 401.

[0183] The processor 401 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management and other control functions. The memory 402 can be used to store data used by the processor 401 when performing operations.

[0184] In order to achieve the above-mentioned object, the present invention provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the control method for self-cleaning of the washing device is implemented.

[0185] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned implementation method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each implementation of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0186] Obviously, the above described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, ordinary technicians in this field can make other different forms of changes or modifications without making creative work, which should all fall within the scope of protection of the present invention.

Claims

1. A method for controlling self-cleaning of a washing device, characterized in that: include: After the washing device finishes washing, determining the accumulated amount of dirt remaining in the washing device, wherein the accumulated amount of dirt remaining in the washing device is determined based on the accumulated amount of dirt remaining in the previous time, the washing temperature, the washing time, the operation interval time, the accumulated amount of dirt remaining in the current time, and the sterilizing liquid; Determine whether the accumulated stain residue at that time is greater than the self-cleaning trigger threshold; When the judgment result is yes, a self-cleaning instruction is sent; Wherein, the step of determining the accumulated amount of stains remaining in the washing device after the washing device finishes washing comprises: After the washing device finishes washing, the last accumulated dirt residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, current dirt residue, and sterilizing liquid usage correction coefficient are obtained; The cumulative amount of stains remaining in the washing device is determined according to the last accumulated amount of stains remaining, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the amount of stains remaining in the current time, and the sterilizing liquid usage correction coefficient. The calculation formula of the cumulative amount of stains remaining in the washing device in the current time is as follows: The mth cumulative amount of dirt residue = {(m-1)th cumulative amount of dirt residue * temperature coefficient * washing time coefficient * operation interval time correction coefficient + mth amount of dirt residue} * sterilizing liquid usage correction coefficient; The current cumulative stain residue is the mth cumulative stain residue obtained after the mth washing. The last cumulative stain residue amount is the m-1th cumulative stain residue amount obtained after the m-1th washing is completed; The current stain residual amount is the mth stain residual amount obtained after the mth washing is completed.

2. The method for controlling the self-cleaning of a washing device according to claim 1, characterized in that: The step of obtaining the last accumulated amount of dirt residue, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the current amount of dirt residue, and the sterilization liquid usage correction coefficient after the washing device finishes washing includes: After the washing device has finished washing, determine the equivalent temperature during the washing process; Determining the temperature coefficient according to the equivalent temperature and the corresponding relationship between the preset equivalent temperature and the temperature coefficient; Wherein, the calculation formula of the equivalent temperature is: The equivalent temperature of the current main wash process = the integral of the temperature change of the current main wash process and the washing time / the total washing process duration t1 of the current main wash process.

3. The method for controlling the self-cleaning of a washing device according to claim 1, characterized in that: The step of obtaining the last accumulated amount of dirt residue, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the current amount of dirt residue, and the sterilization liquid usage correction coefficient after the washing device finishes washing includes: After the washing device finishes washing, the washing duration coefficient is determined according to the ratio of the actual duration of the main washing process of the washing device at that time / the first preset duration of the main washing process.

4. The method for controlling the self-cleaning of a washing device according to claim 1, characterized in that: The step of obtaining the last accumulated amount of dirt residue, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the current amount of dirt residue, and the sterilization liquid usage correction coefficient after the washing device finishes washing includes: After the washing device finishes washing, the operation interval time correction coefficient is determined according to the operation interval of the washing device.

5. The method for controlling the self-cleaning of a washing device according to claim 1, characterized in that: The step of obtaining the last accumulated amount of dirt residue, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the current amount of dirt residue, and the sterilization liquid usage correction coefficient after the washing device finishes washing includes: After the washing device has finished washing, the sterilizing liquid usage correction factor is determined according to the usage of the sterilizing liquid; Among them, the determination of the correction factor for the use of sterilization solution includes: When the sterilizing liquid is used, the sterilizing liquid usage correction coefficient is a preset correction value less than 1; When the sterilizing solution is not used, the sterilizing solution usage correction factor is 1.

6. The method for controlling the self-cleaning of a washing device according to claim 1, characterized in that: The step of obtaining the last accumulated amount of dirt residue, the temperature coefficient, the washing time coefficient, the operation interval time correction coefficient, the current amount of dirt residue, and the sterilization liquid usage correction coefficient after the washing device finishes washing includes: After the washing device has finished washing, the amount of residual stains for that time is determined based on the comprehensive stain coefficient for that time, the detergent dosage correction coefficient, the water consumption correction coefficient, and the rinse correction coefficient; Among them, the amount of stains remaining at that time = the comprehensive stain coefficient of that time * detergent dosage correction coefficient * water consumption correction coefficient * rinsing correction coefficient.

7. The method for controlling the self-cleaning of a washing device according to claim 6, characterized in that: The step of determining the amount of residual stains at that time according to the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient after the washing device finishes washing includes: After the washing device finishes washing, the comprehensive stain coefficient of the current time is determined according to the comprehensive stain concentration obtained in real time during the washing process of the current main wash; The calculation formula of the comprehensive stain coefficient is: t1 is the total washing time of the main wash process. SI(t) is the comprehensive stain concentration obtained in real time during the main wash process at time t.

8. The method for controlling the self-cleaning of a washing device according to claim 6, characterized in that: The step of determining the amount of residual stains at that time according to the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient after the washing device finishes washing includes: After the washing device has finished washing, the detergent dosage correction coefficient is determined according to the comprehensive stain concentration obtained in real time during the washing process of the main wash; Wherein, the calculation formula of the detergent dosage correction coefficient is: Detergent dosage correction coefficient = actual total amount of detergent dosage / basic detergent dosage threshold.

9. The method for controlling the self-cleaning of a washing device according to claim 6, characterized in that: The step of determining the amount of residual stains at that time according to the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient after the washing device finishes washing includes: After the washing device is finished washing, determine the water consumption correction factor; Wherein, the calculation formula of the water consumption correction coefficient is: Water consumption correction coefficient = actual total water intake during the main wash process / preset water consumption threshold during the main wash process.

10. The method for controlling the self-cleaning of a washing device according to claim 6, characterized in that: The step of determining the amount of residual stains at that time according to the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient after the washing device finishes washing includes: After the washing device finishes washing, the rinse correction coefficient is determined according to the number of rinses in the current washing process and the dilution ratio of the stains by a single round of rinsing; Wherein, the calculation formula of the rinse correction coefficient is: Rinse correction factor = Nrinse n , n is the number of rinses in the washing process, and Nrinse is the dilution ratio of stains in a single rinse.

11. A washing device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the self-cleaning control method for a washing device according to any one of claims 1 to 10.

12. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the self-cleaning control method of a washing device according to any one of claims 1 to 10 is implemented.

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