Self-cleaning control method for washing device, washing device, and storage medium

Abstract

A self-cleaning control method for a washing device, comprising: when the washing device finishes washing, determining a current accumulated residual stain quantity of the washing device, wherein the current accumulated residual stain quantity is determined on the basis of the last accumulated residual stain quantity, the washing temperature, the washing duration, the running interval duration, the current residual stain quantity, and a sterilizing solution; determining whether the current accumulated residual stain quantity is greater than a self-cleaning trigger threshold; and when the determination result is yes, sending a self-cleaning instruction. Also disclosed are a washing device and a storage medium for implementing the control method. By using the control method, the self-cleaning accuracy can be improved.

Description

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

[0001] The present application belongs to the field of cleaning technology, and specifically 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 therefore favored by people.

[0003] Currently, washing machines, such as washing machines and dishwashers, run the risk of residual dirt remaining inside the washing machine during the washing process. After long-term use, the residual dirt can breed bacteria and affect the washing effect. Some washing machines in the prior art already have self-cleaning functions, but these functions are often triggered by the user, and there's no objective basis for evaluating the timing of self-cleaning. Sometimes, long periods of inactivity can lead to suboptimal self-cleaning results, while excessively frequent triggering can waste water and electricity. A small number of washing machines have self-cleaning reminders, but most rely on a single dimension: total operating time. However, contamination of a washing machine is related to multiple factors, and single-dimensional judgments are simpler but less accurate.

[0004] Summary of the Invention

[0005] The present application provides a control method for self-cleaning of a washing device, a washing device, and a storage medium to solve the problem in the prior art that the self-cleaning function of the washing device has low accuracy or lacks an objective evaluation basis for the timing of self-cleaning.

[0006] In order to achieve the above-mentioned object, the present application provides a method for controlling the self-cleaning of a washing device, the method comprising:

[0007] After the washing device finishes washing, determining the cumulative amount of dirt remaining in the washing device during the current wash cycle, wherein the cumulative amount of dirt remaining during the current wash cycle is determined based on the cumulative amount of dirt remaining during the previous wash cycle, the washing temperature, the washing time, the operation interval, the amount of dirt remaining during the current wash cycle, and the sterilizing solution;

[0008] Determining whether the accumulated amount of dirt residue at that time is greater than a self-cleaning trigger threshold;

[0009] When the judgment result is yes, a self-cleaning instruction is sent.

[0010] Preferably, in the control method for self-cleaning of the washing device, the step of determining the amount of accumulated stain residue in the washing device after the washing device finishes washing includes:

[0011] After the washing device finishes washing, the last accumulated amount of dirt residue, temperature coefficient, washing time coefficient, operation interval correction coefficient, the current amount of dirt residue, and sterilizing liquid usage correction coefficient are obtained;

[0012] The cumulative amount of stains remaining in the washing machine during the current cycle is determined based on the last cumulative amount of stains remaining, the temperature coefficient, the washing time coefficient, the operation interval correction coefficient, the amount of stains remaining in the current cycle, and the sterilizing liquid usage correction coefficient. The calculation formula for the cumulative amount of stains remaining in the washing machine during the current cycle is as follows:

[0013] The mth cumulative amount of residual stains = {(m-1)th cumulative amount of residual stains × temperature coefficient × washing time coefficient × operation interval correction coefficient + mth amount of residual stains} × sterilizing liquid usage correction coefficient;

[0014] The current cumulative stain residue is the mth cumulative stain residue obtained after the mth washing.

[0015] The last cumulative stain residue is the m-1th cumulative stain residue obtained after the m-1th washing;

[0016] The current stain residual amount is the mth stain residual amount obtained after the mth washing.

[0017] Preferably, in the control method for self-cleaning of the washing device, 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 sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0018] After the washing device finishes washing, determine the equivalent temperature during the washing process;

[0019] Determining the temperature coefficient according to the equivalent temperature and the corresponding relationship between the preset equivalent temperature and the temperature coefficient;

[0020] The calculation formula of the equivalent temperature is:

[0021] 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 time t1 of the current main wash process.

[0022] Preferably, in the control method for self-cleaning of the washing device, 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 sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0023] 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.

[0024] Preferably, in the control method for self-cleaning of the washing device, 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 sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0025] After the washing device finishes washing, the operation interval time correction coefficient is determined according to the operation interval of the washing device.

[0026] Preferably, in the control method for self-cleaning of the washing device, 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 sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0027] After the washing device is finished washing, the sterilizing liquid usage correction coefficient is determined according to the usage of the sterilizing liquid;

[0028] Among them, the determination of the correction coefficient for the use of sterilization solution includes:

[0029] When the sterilizing liquid is used, the sterilizing liquid usage correction coefficient is a preset correction value less than 1;

[0030] When the sterilizing solution is not used, the sterilizing solution usage correction factor is 1.

[0031] Preferably, in the control method for self-cleaning of the washing device, 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 sterilizing liquid usage correction coefficient after the washing device finishes washing includes:

[0032] After the washing device finishes washing, the amount of residual stains for that time is determined based on the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient;

[0033] Among them, the amount of stains remaining at that time = the comprehensive stain coefficient of that time × the detergent dosage correction coefficient × the water consumption correction coefficient × the rinsing correction coefficient.

[0034] Preferably, in the control method for self-cleaning of the washing device, the step of determining the amount of residual stains after the washing device completes washing based on the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient includes:

[0035] After the washing device finishes washing, the comprehensive stain coefficient of the current wash is determined based on the comprehensive stain concentration obtained in real time during the main wash process;

[0036] The calculation formula of the comprehensive stain coefficient is:

[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 after the washing device completes washing based on the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient includes:

[0040] After the washing device finishes washing, the detergent dosage correction coefficient is determined based on the comprehensive stain concentration obtained in real time during the main wash process;

[0041] 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 after the washing device completes washing based on the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient includes:

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

[0045] 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 after the washing device completes washing based on the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient includes:

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

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

[0050] Rinse correction factor = Nrinsen,

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

[0052] In order to achieve the above-mentioned object, the present application provides a washing device, which comprises:

[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. 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 objectives, the present application provides a computer-readable storage medium storing a computer program, which implements the above-mentioned control method for self-cleaning of a washing device when executed by a processor.

[0057] The technical solution provided in this application has the following advantages:

[0058] The present application provides a control method for self-cleaning of a washing device, in which the accumulated stain residue is determined based on the last accumulated stain residue, washing temperature, washing time, operation interval, the current stain residue, and sterilization liquid, so that the self-cleaning function is 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 on past accumulated stain residues. After correcting the past accumulated stain residues by the above-mentioned temperature coefficient, washing time coefficient, and washing interval, 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 application 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 self-cleaning reminder trigger 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 application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0062] Figure 1 is a diagram showing the relationship between temperature and washing time during the main wash process of this application;

[0063] FIG2 is a schematic diagram of a first embodiment of the control method for self-cleaning of a washing device of the present application;

[0064] FIG3 is a schematic diagram of a second embodiment of the self-cleaning control method for a washing device of the present application;

[0065] FIG4 is a schematic diagram of an embodiment of a washing device. DETAILED DESCRIPTION

[0066] 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 cleaning items to be cleaned, which can be cleaning clothes, etc.

[0067] The following describes the implementation details of the self-cleaning control method for the washing device of the first embodiment of the present application. The following content is only provided for ease of understanding and is not necessary for the implementation of this solution.

[0068] The specific process of this embodiment is shown in FIG2 , and specifically includes:

[0069] Step S100, after the washing device completes washing, determining the cumulative amount of dirt remaining in the washing device during the current wash cycle, wherein the cumulative amount of dirt remaining in the current wash cycle is determined based on the cumulative amount of dirt remaining in the previous wash cycle, washing temperature, washing time, operation interval, the amount of dirt remaining in the current wash cycle, and a sterilizing solution;

[0070] 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.

[0071] Step S200, determining whether the accumulated amount of dirt residue at that time is greater than a self-cleaning trigger threshold;

[0072] 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 imposed herein.

[0073] Step S300: When the judgment result is yes, a self-cleaning instruction is sent.

[0074] It should be understood that when the accumulated amount of dirt residue is greater than the self-cleaning trigger threshold, a self-cleaning instruction is sent. This may be to send a self-cleaning instruction to the washing machine to control the washing machine to self-clean, or to send a self-cleaning instruction to the washing machine to remind the user to perform self-cleaning. Alternatively, if the user performs a self-cleaning operation, the mth accumulated amount of dirt 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 increased by 1, and the stored value of the accumulated amount of dirt residue remains unchanged. Until the accumulated number of self-cleaning reminders reaches 3 and the user ignores the reminder and does not perform a self-cleaning operation, the mth accumulated amount of dirt residue is reset to 0, and the accumulated number of self-cleaning reminders is reset to 0.

[0075] The control method for self-cleaning of a washing device provided in this application is as follows: when the accumulated amount of stains is based on the last accumulated amount,

[0076] The amount of stain residue, washing temperature, washing time, operation interval, the amount of stain residue at that time, and sterilization liquid are determined, so that the self-cleaning function is more accurate.

[0077] 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 on past accumulated stain residues. After correcting the past accumulated stain residues by the above-mentioned temperature coefficient, washing time coefficient, and washing interval, 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.

[0078] Taking a washing machine as an example, if a user frequently uses high temperatures and long wash times, the accumulated stains on the inner surface of the washing machine will be effectively cleaned. The accumulated stains after the mth wash will be much less than the accumulated stains after the mth wash if the washing machine is only used occasionally and the default normal temperature or super-fast wash time is used. The cumulative stain residual amount calculation method provided in this application can dynamically and flexibly adjust the accumulated stain residual amount based on the user's actual washing machine usage. Compared to the traditional method of simply accumulating the stain residues of individual washes to obtain the total stain residual amount, this method is more realistic and more accurate in determining self-cleaning reminders.

[0079] Furthermore, the present application 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 self-cleaning reminder trigger and store it for subsequent iterative calculations after each washing program is run.

[0080] As shown in FIG2 , the present application relates to a second embodiment of a method for controlling self-cleaning of a washing device, wherein step S100 includes:

[0081] Step S110, after the washing device finishes washing, obtain the last accumulated amount of dirt residue, temperature coefficient, washing time coefficient, operation interval time correction coefficient, the current amount of dirt residue, and sterilizing liquid usage correction coefficient;

[0082] 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 following: changes in stain concentration during the washing process, amount of detergent added, washing time, washing temperature, water consumption, number of rinses, interval time between washing program operations, amount of sterilization liquid added, etc.

[0083] Step S120: Determine the cumulative amount of dirt remaining in the washing machine for the current session based on the last cumulative amount of dirt remaining, the temperature coefficient, the washing time coefficient, the operation interval correction coefficient, the amount of dirt remaining in the current session, and the sterilizing liquid usage correction coefficient. The calculation formula for the cumulative amount of dirt remaining in the washing machine for the current session is as follows:

[0084] The mth cumulative amount of residual stains = {(m-1)th cumulative amount of residual stains × temperature coefficient × washing time coefficient × operation interval correction coefficient + mth amount of residual stains} × sterilizing liquid usage correction coefficient;

[0085] The current cumulative stain residue is the mth cumulative stain residue obtained after the mth washing;

[0086] The last cumulative stain residue is the m-1th cumulative stain residue obtained after the m-1th washing;

[0087] The current stain residual amount is the mth stain residual amount obtained after the mth washing.

[0088] It should be understood that when m=1, the first cumulative amount of stain residue is the amount of stain residue calculated in the first washing process;

[0089] When m=2, the second cumulative stain residue is 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.

[0090] ...and so on.

[0091] It should be noted that the amount of newly added stains remaining in a round of washing is the amount of stains remaining in that round of washing, which is the amount of dirt that is cleaned out in this round of washing compared to the previous round of washing.

[0092] (1) Determination of temperature coefficient

[0093] More specifically, the method for determining the temperature coefficient includes:

[0094] Step S1211, after the washing device finishes washing, determining the equivalent temperature of the washing process;

[0095] 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.

[0096] Step S1212, determining the temperature coefficient according to the equivalent temperature and the corresponding relationship between the preset equivalent temperature and the temperature coefficient;

[0097] The calculation formula of the equivalent temperature is:

[0098] 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 time t1 of the current main wash process.

[0099] T(t) is the water temperature obtained in real time at time t during a single wash cycle. T(t) is obtained in real time via a temperature sensor. Temperature often changes dynamically during the wash cycle, and temperature changes increase the rate of molecular movement, accelerating the breakdown of previously remaining stains on the inner wall of the washing device into the water. This also further kills bacteria and other microorganisms that originate from these remaining stains. The increased wash temperature reduces the amount of residual stains on the inner wall of the washing device to a certain extent. The introduction of the temperature coefficient effectively corrects the effect of the current wash cycle's temperature on the amount of stains remaining on the inner wall of the washing device, truly reflecting the changes in the total amount of stains on the inner wall of the washing device and providing better guidance for triggering self-cleaning.

[0100] It should be noted that the main wash process is the process from the start of water intake to the draining of the main wash. The correspondence between the equivalent temperature and the temperature coefficient can be pre-set, as shown in Table 1. Furthermore, Figure 1 shows the relationship between the temperature and wash time during the main wash process. The shaded area in Figure 1 represents the integral of the temperature over time during the wash process.

[0101] Table 1 Correspondence between equivalent temperature and temperature coefficient

[0102] (2) Determination of washing time coefficient

[0103] More specifically, the method for determining the washing time coefficient includes:

[0104] 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 to a first preset duration of the main washing process;

[0105] The calculation formula for the washing time coefficient is:

[0106] Washing duration coefficient = a1n (actual duration of the main wash process when running this time / first preset duration of the main wash process) + b.

[0107] 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.

[0108] It should be noted that, taking a washing machine as an example, with a being -0.286 and b being 1.10156, when the laundry is relatively dirty, the washing machine's preset main wash duration is 20 minutes. Due to intelligent judgment logic or manual time increase logic, the wash duration increases to 30 minutes. When the actual main wash duration of the current run / the first preset main wash duration is 30 minutes / 20 minutes = 1.5, the wash duration coefficient is -0.286ln1.5 + 1.10156. In other embodiments, the wash duration coefficient can also be calculated by searching the wash duration coefficient based on the ratio of the actual main wash duration of the current run to the first preset main wash duration, using a pre-established correspondence between the ratio and the wash duration coefficient.

[0109] Washing time represents the time that 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 and wash away the residual stains from the past on the inner surface of the washing device. By further correcting the washing time, we can obtain the impact of the current washing time on the accumulated amount of residual stains from the past, and truly reflect the changes in the total amount of stains on the inner wall of the washing device, providing better guidance for triggering self-cleaning.

[0110] In addition, the 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, which effectively reduces the rate of increase of past residual dirt on the inner side of the washing device during the round.

[0111] (3) Determination of the operating interval correction coefficient

[0112] The method for determining the line interval time correction coefficient includes:

[0113] After the washing device finishes washing, the operation interval length correction coefficient is determined according to the operation interval of the washing device;

[0114] The calculation formula for the running interval correction coefficient is:

[0115] Run interval correction factor = ced run interval;

[0116] The unit of the operation interval is day;

[0117] c and d are coefficients, and 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.

[0118] The running interval is the time interval between the start of the mth wash and the end of the m-1th wash.

[0119] It should be noted that the interval between wash program runs will affect the amount of bacteria that accumulates on the residual stains when the washing machine is not in use, greatly increasing the degree of contamination on the inside of the washing machine. The longer the run interval, the greater the run interval correction coefficient. When the washing machine is stationary and not in use, the stains remaining on the inner wall will breed a large number of bacteria in a dark and humid environment and continue to accumulate contamination. This will greatly affect the total cumulative contamination residue on the inner wall of the washing machine from the previous (m-1) washes. By further correcting the run interval, the effect of the run 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 machine and provides better guidance for triggering self-cleaning.

[0120] (4) Determination of the correction factor for sterilization solution use

[0121] The method for determining the correction coefficient of the sterilizing solution includes:

[0122] After the washing device is finished washing, the sterilizing liquid usage correction coefficient is determined according to the usage of the sterilizing liquid;

[0123] Among them, the determination of the correction coefficient for the use of sterilization solution includes:

[0124] When the sterilizing liquid is used, the sterilizing liquid usage correction coefficient is a preset correction value less than 1;

[0125] When the sterilizing solution is not used, the sterilizing solution usage correction factor is 1.

[0126] 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 or not can be sensed by the placement of the sterilizing liquid in 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 washes.

[0127] The amount of sterilization 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. The accumulated residual stains will breed bacteria in the washing device when it is not in use, and the addition of sterilization liquid will effectively inhibit this process.

[0128] (5) Determination of the amount of residual stain

[0129] The method for determining the residual amount of the stain at that time includes:

[0130] After the washing device finishes washing, the amount of residual stains for that time is determined based on the comprehensive stain coefficient, detergent dosage correction coefficient, water consumption correction coefficient, and rinse correction coefficient;

[0131] Among them, the amount of stains remaining at that time = the comprehensive stain coefficient of that time × the detergent dosage correction coefficient × the water consumption correction coefficient × the rinsing correction coefficient.

[0132] 1) Determination of the comprehensive stain coefficient

[0133] The method for determining the comprehensive stain coefficient at that time includes:

[0134] After the washing device finishes washing, the comprehensive stain coefficient of the current wash is determined based on the comprehensive stain concentration obtained in real time during the main wash process;

[0135] The calculation formula of the comprehensive stain coefficient is:

[0136] t1 is the total washing time of the main wash process.

[0137] SI(t) is the comprehensive stain concentration obtained in real time during the main wash process at time t.

[0138] 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 particulate matter, water-soluble stains, suspended droplets, etc., which will have certain residues during the contact process 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.

[0139] 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 takes into account the dynamic process of the washing device being contaminated by the stains washed into the water body during the washing process. The real-time obtained comprehensive stain index information of the water body 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.

[0140] 2) Determination of detergent dosage correction coefficient

[0141] The method for determining the detergent dosage correction coefficient includes:

[0142] After the washing device finishes washing, the detergent dosage correction coefficient is determined based on the comprehensive stain concentration obtained in real time during the main wash process;

[0143] The calculation formula of the detergent dosage correction coefficient is:

[0144] Detergent dosage correction coefficient = actual total amount of detergent dosage / basic detergent dosage threshold.

[0145] 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.

[0146] The actual total amount of detergent added is calculated by the automatic detergent addition amount + the manual detergent addition amount, where the automatic detergent addition amount can be obtained by multiplying the running time of the dispensing device by 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.

[0147] The basic detergent dosage threshold can be factory-set or user-defined. For a 10kg mixed wash cycle, for example, the basic detergent dosage threshold for mixed wash can be set to a medium dosage of 20mL, typically used under low load conditions. When the load is heavier and soiled, the washing machine will increase the amount of detergent as appropriate during the wash cycle. This can be done manually by the user or automatically based on load weight. In this case, the detergent dosage correction factor will be greater than 1. For example, if the washing machine automatically dispenses 30mL of detergent based on the program, and the user manually dispenses 10mL, the detergent dosage correction factor will be: (30mL + 10mL) / 20mL = 2. Because detergent contains a large number of components that can encapsulate or react with soiling, the addition of detergent reduces the efficiency of soiling in the washing machine. The detergent dosage correction factor accounts for the negative impact of detergent dosage on soiling in the washing machine. Using the detergent dosage correction factor will make the calculation of the residual soiling in the washing machine more accurate and reliable.

[0148] 3) Determination of water consumption correction coefficient

[0149] The method for determining the water consumption correction coefficient includes:

[0150] After the washing device is finished washing, determine the water consumption correction factor;

[0151] The calculation formula of the water consumption correction coefficient is:

[0152] Water consumption correction coefficient = actual total water intake during the main wash process / preset water consumption threshold during the main wash process.

[0153] 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 water consumption, the larger the area of ​​water in contact with the inside of the washing device under the same comprehensive stain concentration conditions, and the more stains will remain in the round.

[0154] The basic water consumption threshold can be factory set or set by the user according to needs.

[0155] The water consumption correction factor is calculated by dividing the actual total water intake during the main wash process by the basic water consumption threshold. The actual total water intake during the main wash process includes the sum of the initial water intake and the main wash replenishment water intake. The actual total water intake during the main wash process can be measured cumulatively by a flow meter within the washing machine, or calculated by multiplying the water flow rate by the program-controlled water intake time. In this embodiment, the basic water consumption threshold is factory-set for the washing machine. For a mixed wash program in a 10kg washing machine, for example, the basic water consumption threshold can be set to a medium water level of 12L, typically under low load conditions. If a large amount of absorbent clothing is added to the washing machine, causing the program to automatically determine and execute an actual water intake of 18L, the water consumption correction factor is calculated as 18L / 12L = 1.5. Water consumption determines the total surface area of ​​the washing machine where water containing washed soil contacts the remaining soil, thus affecting the amount of soil remaining in the washing machine. The water consumption correction factor accounts for the effect of soil surface area on the total amount of soil remaining, providing a correction for a more accurate calculation of the soil remaining amount during the wash cycle.

[0156] 4) Determination of rinsing correction coefficient

[0157] The method for determining the rinse correction coefficient includes:

[0158] After the washing device finishes washing, the rinse correction coefficient is determined based on the number of rinses in the washing process and the dilution ratio of the stains by a single rinse round;

[0159] The calculation formula of the rinse correction coefficient is:

[0160] Rinse correction factor = Nrinsen,

[0161] n is the number of rinses in the washing process, and Nrinse is the dilution ratio of stains in a single rinse.

[0162] 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.

[0163] It is generally related to the amount of water entering the rinse cycle and the moisture content after draining and dehydration. Taking a laundry machine as an example, the formula for calculating the dilution ratio of stains during rinse is:

[0164] Nrinse = (load amount × moisture content after dehydration) / (single round rinsing water intake + load amount × moisture content after dehydration).

[0165] in,

[0166] The load capacity can be measured by the washing device weighing system or input by the user;

[0167] The moisture content after dehydration is related to the clothing material and the spin speed. The impact of clothing material and spin speed on the final moisture content was experimentally determined and is shown in the table below: Moisture content after dehydration = clothing material impact factor × spin speed impact factor. The clothing material can be automatically identified by the washing machine or input by the user, and the spin speed can be obtained by a sensor.

[0168] The clothing material influence factor can be retrieved based on the pre-set relationship between clothing materials and clothing material influence factors. For example, the clothing material influence factor for pure cotton is 100%, the clothing material influence factor for synthetic fiber is 40%, the clothing material influence factor for silk is 50%, the clothing material influence factor for wool is 90%, and the clothing material influence factor for mixed materials is 80%.

[0169] The dehydration speed influence 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).

[0170] The water intake for a single round of rinsing can be measured by the flow meter in the washing device, or calculated by multiplying the water intake time by the water intake flow rate.

[0171] 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, so the stain dilution ratio Nrinse=(3kg×60%) / (13.2kg+3kg×60%)=10%.

[0172] Because the rinsing process is mathematically described as a gradient dilution process, the rinse correction factor is calculated by multiplying the soiling dilution ratios for n single rinse cycles. The number of rinses in a complete wash cycle can be factory-set or user-defined. The rinsing process dilutes and flushes any residual soiling left on the inner walls of the washing machine during a single wash cycle. Introducing the rinse correction factor allows for more accurate calculation of the residual soiling during a wash cycle.

[0173] 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 rinsing 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 rinsing correction coefficient = 1.

[0174] In order to achieve the above-mentioned purpose, the present application also provides a washing device, as shown in Figure 4, the washing device includes at least one processor 401; and a memory 402 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 self-cleaning control method of the washing device.

[0175] Memory 402 and processor 401 are connected using a bus. The bus may include any number of interconnected buses and bridges, connecting various circuits of one or more processors 401 and memory 402. The bus may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits. These are all well known in the art and, therefore, will not be described further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be a single component or multiple components, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 401 is transmitted over a wireless medium via an antenna. Furthermore, the antenna receives data and transmits it to processor 401.

[0176] The processor 401 is responsible for managing the bus and general processing, and may also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 402 may be used to store data used by the processor 401 when performing operations.

[0177] In order to achieve the above-mentioned purpose, the present application provides a computer-readable storage medium storing a computer program, which implements the above-mentioned self-cleaning control method of the washing device when executed by a processor.

[0178] That is, those skilled in the art will understand that all or part of the steps in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a program, which is stored in a storage medium and includes a number of instructions for causing a device (which may be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc., various media that can store program code.

[0179] Obviously, the embodiments described above are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, ordinary technicians in this field can make other different forms of changes or modifications without making any creative work, which should fall within the scope of protection of this application.

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.

2. The method for controlling the self-cleaning of a washing device according to claim 1, characterized in that: The step of determining the accumulated amount of dirt residue 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 amount is the mth cumulative stain residue amount 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.

3. The method for controlling the self-cleaning of a washing device according to claim 2, 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.

4. The method for controlling the self-cleaning of a washing device according to claim 2, 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.

5. The method for controlling the self-cleaning of a washing device according to claim 2, 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.

6. The method for controlling the self-cleaning of a washing device according to claim 2, 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.

7. The method for controlling the self-cleaning of a washing device according to claim 2, 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.

8. The method for controlling the self-cleaning of a washing device according to claim 7, 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 washing process; SI(t) is the comprehensive stain concentration obtained in real time during the main wash process at time t.

9. The method for controlling the self-cleaning of a washing device according to claim 7, 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.

10. The method for controlling the self-cleaning of a washing device according to claim 7, 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.

11. The method for controlling the self-cleaning of a washing device according to claim 7, 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 = Nrinsen, n is the number of rinses in the washing process, and Nrinse is the dilution ratio of stains in a single rinse.

12. 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 11.

13. 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 machine according to any one of claims 1 to 11 is implemented.

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