CN110965262B - Washing machine control method - Google Patents
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- CN110965262B CN110965262B CN201811152186.7A CN201811152186A CN110965262B CN 110965262 B CN110965262 B CN 110965262B CN 201811152186 A CN201811152186 A CN 201811152186A CN 110965262 B CN110965262 B CN 110965262B
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Abstract
The invention discloses a control method of a washing machine, wherein the washing machine at least takes the quality of inlet water as an influence factor to measure and calculate the pollution index of a washing barrel in single washing, and reminds a user to operate a self-cleaning program when the accumulated pollution index of multiple washing reaches or exceeds a critical value. The application provides a control method, convert washing machine self operating parameter and data into the coefficient that influences the washtub degree of contamination, introduced the quality of water coefficient of intaking that influences the washtub degree of contamination simultaneously to bring into the influence of quality of water hardness, water temperature and water residence time to the quality of water coefficient, the method logic is reasonable, can accurately embody the contribution of quality of water to the washtub pollution, is fit for using widely.
Description
Technical Field
The invention belongs to the technical field of clothes treatment, and particularly relates to a control method of a washing machine.
Background
According to research statistics, the dirt in the washing tub of the washing machine mainly comes from microorganisms (such as pseudomonas aeruginosa, escherichia coli, mold and the like) between fiber gaps of clothes and on the surfaces of the clothes, and the peculiar smell generated by the humid environment in the washing tub of the washing machine under the condition that air is not circulated. These problems cause secondary pollution in the subsequent washing of the laundry, causing harm to the health of the user.
Most of the existing washing machines have the function of self-cleaning of the washing barrel, the function can be used for high-temperature sterilization and disinfection, and secondary pollution can be effectively reduced by regular use and cleaning. However, the frequency of self-cleaning of the washing tub by the user is low according to big data statistics, which indicates that most users do not pay enough attention to the secondary pollution of the washing tub and do not know the self-cleaning function.
At present, the pollution degree of a washing barrel is usually calculated according to the accumulated water turbidity or the accumulated running period of each washing in a washing machine, and parameters such as washing time, temperature and the like are introduced into some products on the basis of the calculated pollution degree, but the method excessively focuses on the influence of the washing process on the pollution degree of the washing barrel, and neglects other factors, such as the problem that the pollution degree of water scales on the washing barrel caused by the hardness of inlet water, the water temperature and the like cannot be accurately reflected.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a control method which can measure and calculate the pollution degree of a washing drum according to the operation parameters and data of a washing machine and prompt a user to operate a self-cleaning program.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention provides a control method of a washing machine, wherein the washing machine at least takes the quality of inlet water as an influence factor to measure and calculate the pollution index of a washing barrel in single washing, and reminds a user to operate a self-cleaning program when the accumulated pollution index of multiple washing reaches or exceeds a critical value.
According to the method, the washing machine further measures and calculates the pollution index by taking the selected washing program and/or the operation information as influence factors, wherein the operation information comprises one or more of washing temperature, washing time, washing times and washing interval, and the washing machine measures and calculates the pollution index according to coefficients corresponding to various operation information; preferably, the operation information includes a washing interval and a washing temperature; more preferably, the operation information is a washing interval.
According to the method, the washing machine sets corresponding coefficients according to the contribution of the inflow water quality and/or the washing program and/or the operation information to the pollution degree of the washing barrel so as to measure and calculate the pollution index; and the washing machine accumulates and calculates the pollution indexes of each single washing in the statistical period to obtain an accumulated pollution index.
According to the method, the pollution index comprises a water quality coefficient, and the water quality coefficient is obtained by measuring and calculating the contribution of the quality of inlet water in single washing to the pollution degree of the washing barrel; the accumulated pollution index also comprises an accumulated water quality coefficient, and the accumulated water quality coefficient is obtained by measuring and calculating the contribution of the water quality of the inlet water in multiple times of washing to the pollution degree of the washing barrel.
According to the method, the water quality of the inlet water comprises water quality hardness, the temperature of the water body in the washing barrel and the retention time of the water body in the washing barrel, and the washing machine converts the contribution of various inlet water qualities to the pollution degree of the washing barrel into a water quality coefficient; preferably, the water quality coefficient includes integrating the temperature of the water body in the washing tub; more preferably, the water quality factor comprises an integral of the temperature of the body of water in the wash tub and/or the residence time of the body of water in the wash tub.
According to the method, the washing interval comprises the time interval between each washing, and the washing machine sets corresponding interval coefficients according to the difference of the contribution of the length of the time interval to the pollution degree of the washing barrel so as to calculate the pollution index of each washing; preferably, when there are multiple wash intervals, calculating the contamination index for a non-first wash requires calculating all the interval coefficients before the first wash; more preferably, the magnitude of the interval coefficient is positively correlated with the duration of the washing time interval.
According to the method, the washing program comprises programs selected by each stage in single washing, and the washing machine sets corresponding program coefficients according to the contribution of the programs selected by each stage to the pollution degree of the washing barrel so as to calculate the pollution index of the single washing; preferably, the program coefficients are accumulated from coefficients corresponding to programs at each stage in a single washing.
According to the method, the washing temperature comprises the washing temperature selected in the single washing, and the washing machine sets a corresponding temperature coefficient according to the contribution of the washing temperature to the pollution degree of the washing barrel so as to calculate the pollution index of the single washing; preferably, the temperature coefficient decreases as the temperature gradually increases from low to high.
In the method, when the washing machine is used, different programs in separate washing periods cause different degrees of dirt of the washing barrel, for example, the survival probability of microorganisms in the washing barrel is reduced due to high temperature generated in the drying process, so that the pollution degree is reduced, and in contrast, dirt and bacteria in clothes enter washing water containing nitrogen and phosphine elements during rinsing, so that the pollution degree of the washing barrel is improved; in addition, after the washing period is finished, the washing barrel has a drying process, and the pollution degree of the washing barrel is different due to different deposition degrees of dirt according to the length of time intervals among the washing periods; in addition, the common household washing water usually uses municipal tap water, so that the problem of scale generation is caused by high water hardness, and the long-term accumulation of dried scale can also aggravate the pollution degree of the washing barrel and increase the cleaning difficulty, so that the method provided by the invention comprehensively considers the contribution of water quality factors to the pollution degree, and the influence of program selection and time intervals of each single washing period on the pollution degree of the washing barrel, and prompts a user to operate a self-cleaning program when the accumulated pollution degree reaches a critical value.
According to the above method, the cumulative contamination index of the washing tub in each washing is set to S,
wherein i represents the ith wash within the statistical period of the single wash, PiProgram factor, K, representing the degree of soiling of the washing tub by the washing program selected for the ith washiAn accumulated interval coefficient, A, representing the accumulated influence of each washing time interval before the ith washing on the pollution degree of the washing tubiAnd the water quality coefficient shows the influence of the water quality of the inlet water on the pollution degree in the ith washing.
In the method, different clothes care programs correspond to different treatment processes, so that the pollution influence degrees on the washing barrel are different, and therefore, a program coefficient P is set, different programs are classified and set with coefficients with different values, and the influence of the different programs on the pollution degrees is represented; when a user uses the washing machine to continuously wash, because the washing barrel has no drying and depositing process or the process is short and incomplete to deposit, the accumulation of the pollution degree of the barrel is slow, so an accumulation interval coefficient K is set, different coefficients are set according to the length of each adjacent washing interval time and are accumulated and calculated to represent the influence of the time interval on the pollution degree; in addition, a water quality coefficient A is set to represent the influence of water on the pollution degree of the washing barrel. The method calculates the pollution degree increased by each complete washing period of the washing machine to obtain a pollution index, and accumulates the pollution indexes of the washing periods to be used as the accumulated pollution index of the washing machine.
According to the above method, the water quality coefficient Ai＝Di×ff(Ti)dTi(i.gtoreq.1) wherein DiShows the water quality coefficient A of the hardness influence of the inlet water in the ith washingiHardness coefficient of (d), ff (T)i)dTiIndicates the temperature T of the water in the washing tub in the ith washingiIntegrating, wherein the integration result influences the water quality coefficient Ai。
In the above method, the contamination caused by the water quality is also related to the water temperature, so the value of a is related to the water temperature. Specifically, the size of A is in direct proportion to the water hardness D, and the higher the hardness D is, the larger the value of A is; proportional to the water temperature T, the higher the water temperature T, the greater the value of a. If the temperature change control is carried out in the washing program, the water temperature T is a variable, so the water temperature T is subjected to integral calculation, and the integral result is multiplied by the hardness D to obtain the water quality coefficient A.
According to the method, the temperature T of the water in the washing barrel in the ith washingi＝∫g(ti)dti(i is more than or equal to 1), the retention time t of the water in the washing barrel in the ith washingiIntegrating, wherein the integration result shows time tiInner water temperature TiA change in (c).
In the method, the pollution caused by water quality is related to the retention time of the water body in the washing barrel besides the water temperature, so the value of A is related to the water temperature and the retention time of the water body. Specifically, the size of A is in direct proportion to the water hardness D, and the higher the hardness D is, the larger the value of A is; proportional to the water temperature T, the higher the water temperature T, the larger the value of A; proportional to time t, the longer time t, the larger the value of a. If the temperature change control is performed during the washing process, the water temperature T becomes a variable which changes with the time T, so the time T is integrated to represent the change of the water temperature T within the time T, thereby further explaining the correlation between the temperature T and the time T, and obtaining a more accurate water quality coefficient a after substituting the formula for integrating the temperature T.
The water quality coefficient can also be expressed as Ai＝Di×∫∫h(Ti,ti)dTidti(i is more than or equal to 1), wherein ^ n ^ h (T)i,ti)dTidtiIndicates the temperature T of the water in the washing tub in the ith washingiAnd the retention time t of water in the washing tubiPerforming double integration, wherein the integration result influences the water quality coefficient Ai。
In the method, through different modeling results, factors influencing the water quality coefficient A are respectively from the water quality hardness D, the water temperature T and the retention time T of the water body in the washing barrel, and the water quality hardness D is multiplied after the water temperature T and the retention time T of the water body in the washing barrel are subjected to double integration without considering the functional relation between the water temperature T and the retention time T, so that the complexity of calculating the water quality coefficient A is reduced.
According to the method, the water quality coefficient A is determined by the properties of the water inlet body, so that the water quality coefficient A is 0 in the process without water inlet; in addition, in order to match with the formula of the cumulative pollution index and reasonably represent the contribution of the water quality coefficient A to the pollution degree of the washing barrel, a constant coefficient R is obtained through theoretical analysis and experimental verification, so that Ai＝R×Di×∫f(Ti)dTiOr A isi＝R×Di×∫∫h(Ti,ti)dTidti。
According to the method, the control method also comprises the steps of separately counting the water quality coefficient, setting the accumulated water quality coefficient as W,
the user is prompted to add a detergent for scale when W reaches a certain level.
According to the method, the control method further comprises the step of counting the proportion of the accumulated water quality coefficient in the accumulated pollution index, wherein the proportion is W/S, and when a certain proportion is reached, a user is prompted to add a cleaning agent for scale.
In the method, the water quality coefficient A is not only brought into the accumulated pollution index S, but also subjected to independent accumulated calculation to help a user to know the accumulation degree of the scale in the washing barrel so as to add a cleaning agent for the scale when a self-cleaning program is operated; this process can also be achieved by the ratio of the cumulative water quality factor W to the cumulative pollution index S.
According to the method, the washing machine presets a first reference value and a second reference value of an accumulated water quality coefficient W or an occupation ratio W/S, when the W or the W/S exceeds the first reference value, a user is prompted to add a detergent for scale during operation of the self-cleaning program, when the W or the W/S exceeds the second reference value, the user is prompted to add the detergent for scale to soak the washing tub and then the self-cleaning program is operated; preferably, when W or W/S exceeds the second reference value, the user is prompted to perform barrel-dismantling cleaning and simultaneously clean the heating pipe.
According to the above method, the accumulated interval coefficient
Wherein k isiInterval coefficient representing that each washing time interval before the ith washing influences the pollution degree of the washing barrel in the ith washing, and interval coefficient k of the first washing in the period is counted1＝1。
In the above method, the washing machine records the time interval of each washing cycle in the statistical period, and when determining the accumulated interval coefficient of a certain washing cycle, the interval coefficient of each washing cycle counted before the washing is multiplied, for better illustration of the present invention, the following is given as an example:
when washing for the first time, the interval coefficient is set to be 1 because the washing for the first time has no interval;
at the time of the second washing, because there is interval between the second washing and the first washing, the cumulative interval coefficient is 1 × the interval coefficient of the second washing;
a third washing, wherein the cumulative interval coefficient is 1 × the interval coefficient of the second washing × the interval coefficient of the third washing because intervals exist among the third washing, the second washing and the first washing;
in the fourth washing, since there are intervals between the fourth, third, second and first washing, the cumulative interval coefficient is 1 × the interval coefficient of the second washing × the interval coefficient of the third washing × the interval coefficient of the fourth washing.
And by analogy, the interval coefficient product of a single washing can be multiplied to obtain a cumulative interval coefficient.
According to the above method, the accumulated spacing coefficient
Wherein k isiInterval coefficient for indicating that each washing time interval before ith washing influences the pollution degree of the washing barrel in ith washing, and interval coefficient k of the first washing when the statistical period i is 11Interval coefficient k of the first washing when 1, i > 11＝0。
In the above method, the washing machine records the time interval of each washing cycle in the statistical period, and when determining the accumulated interval coefficient of a certain washing cycle, the interval coefficient of each washing cycle counted before the washing cycle is accumulated, for better illustration of the present invention, the following is given as an example:
in the first washing, the interval coefficient is set to be 1 because the washing has no interval but the program coefficient P is not 0;
in the second washing, the accumulated interval coefficient is equal to the interval coefficient of the first washing plus the interval coefficient of the second washing because there is an interval between the second washing and the first washing, and the interval coefficient of the first washing is set to 0 if the accumulated interval coefficient is not zero because there is no interval before the first washing;
in the third washing, since there are intervals between the third washing, the second washing and the first washing, the cumulative interval coefficient is equal to the interval coefficient of the first washing, the interval coefficient of the second washing and the interval coefficient of the third washing, and since there is no interval before the first washing, the interval coefficient of the first washing is set to 0 if the cumulative interval coefficient is not zero.
And by analogy, accumulating the interval coefficients of single washing to obtain a cumulative interval coefficient.
According to the above-mentioned methodThe cumulative interval coefficient KiHas a preset minimum value, and K is obtained by measurement and calculationiAnd when the minimum value is smaller than the preset minimum value, measuring and calculating according to the preset minimum value.
In the method, the interval coefficient K is set because the numerical value of the interval coefficient is in a range of 0-1, and the cumulative interval coefficient tends to be smaller by multiplying the interval coefficient with a smaller numerical value under the condition of shorter interval time, so that the pollution degree is influenced, and the interval coefficient K is setiAnd the minimum value of (a) ensures the accuracy of the characterization when the above occurs.
According to the method, the washing temperature of the washing machine can be adjusted, and the accumulated pollution index of the washing barrel in each washing
T′iA temperature coefficient indicating that the selected washing temperature of the ith washing affects the degree of contamination of the washing tub.
In the method, the washing temperature can influence the molecular activity and the degree of breeding bacteria, so the temperature coefficient T' is set on the basis of the program coefficient P and the cumulative interval coefficient K, and different coefficients are set according to different washing temperatures based on theoretical analysis and experimental verification to represent the influence of the different washing temperatures on the pollution degree.
According to the method, the program coefficient P is obtained by accumulating the corresponding coefficients of each program in the washing process, the size of the interval coefficient k is positively correlated with the washing time interval duration, and the temperature coefficient T' is reduced after being gradually increased from low to high.
In the method, the washing program comprises the processes of washing, dewatering, rinsing, drying and the like, different coefficients are respectively set as the contribution of each process to the pollution degree is different, and the program coefficients P of single washing are obtained by accumulation or multiplication; when the time interval between the washing cycles is short, dirt is not easy to dry and deposit in the washing barrel, and the longer interval time is beneficial to the dirt deposition process, so that the numerical value of the interval coefficient k is increased along with the increase of the time interval; the temperature is also an important factor influencing the survival rate of bacteria, the bacteria are not easy to breed when the temperature is lower, the temperature coefficient T 'is lower, but the temperature gradually increases to the highest point along with the increase of the temperature and enters the range suitable for the growth of the bacteria, and the high-temperature environment plays a role in inactivating the bacteria along with the further increase of the temperature, and the corresponding temperature coefficient T' is reduced to the lowest point along with the increase of the temperature.
According to the method, when the accumulated pollution index reaches or exceeds the critical value, the washing machine reminds a user to operate the self-cleaning program; preferably, the frequency of the laundry machine alerting the user is increased when the cumulative contamination index exceeds the critical value and is continuously increased.
In the method, when the accumulated pollution index exceeds the critical value, if the self-cleaning program is not carried out, the index is continuously increased, so that the prompting frequency can be set according to the increase of the accumulated pollution index, and the user can be ensured to run the self-cleaning program in time.
According to the method, after a user runs a self-cleaning program, the accumulated pollution index is automatically reset and accumulated again; preferably, the cumulative pollution index can be manually cleared by a user according to the use condition.
In the above method, since the user may have other methods for cleaning the washing tub, the self-cleaning program may automatically clear the accumulated contamination index, and the user may also manually clear the accumulated contamination index.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the control method provided by the invention comprehensively considers the influence of the time interval of the washing period and the program selection on the pollution degree, gives consideration to the environmental factors during and after washing, and more accurately reflects the pollution degree compared with the method only paying attention to the washing process in the prior art;
2. the control method provided by the invention converts the operating parameters and data of the washing machine into coefficients which influence the pollution degree of the washing barrel, and simultaneously brings the influence of water quality change caused by hardness, temperature and retention time on the pollution degree, so that the pollution degree of the washing barrel can be reflected more accurately;
3. the control method provided by the invention adjusts the reminding frequency after the accumulated pollution index exceeds the critical value, and ensures that a user runs the self-cleaning program.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a flow chart of the control method of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
Example 1
In the embodiment, the control method of the washing machine is provided, the washing machine measures and calculates the pollution index of the washing barrel in single washing by taking the time interval of adjacent washing, the washing program selected in each washing and the water quality of inlet water as influence factors, and reminds a user to operate the self-cleaning program when the accumulated pollution indexes of multiple washing reach or exceed a critical value.
In this embodiment, when the washing machine is used, different procedures in separate washing cycles cause different degrees of contamination of the washing tub, for example, high temperature generated in the drying process reduces the survival probability of microorganisms in the washing tub, so that the degree of contamination is reduced, and in contrast, when dirt and bacteria in the laundry enter the washing water containing nitrogen and phosphine elements during rinsing, the degree of contamination of the washing tub is increased; in addition, after the washing period is finished, the washing barrel has a drying process, and the pollution degree of the washing barrel is different due to different deposition degrees of dirt according to the length of time intervals among the washing periods; in addition, the common household washing water usually uses municipal tap water, so that the problem of scale generation is caused by high water hardness, and the long-term accumulation of dried scale can also aggravate the pollution degree of the washing barrel and increase the cleaning difficulty, so that the method provided by the invention comprehensively considers the contribution of water quality factors to the pollution degree, and the influence of program selection and time intervals of each single washing period on the pollution degree of the washing barrel, and prompts a user to operate a self-cleaning program when the accumulated pollution degree reaches a critical value.
In this embodiment, the cumulative contamination index of the washing tub in each washing is set to S,
wherein i represents the i-th wash within the statistical cycle, PiA program coefficient, K, representing the degree of contamination of the washing tub by the wash program selected for said ith washiAn accumulated interval coefficient, A, representing the accumulated influence of each washing time interval before the ith washing on the pollution degree of the washing tubiAnd the water quality coefficient shows the influence of the water quality of the inlet water on the pollution degree in the ith washing.
In this embodiment, different clothes care programs correspond to different treatment processes, so that the pollution influence degrees on the washing tub are different, and therefore, a program coefficient P is set, and coefficients with different values are classified and set for different programs to represent the influence of the programs on the pollution degrees; when a user uses the washing machine to continuously wash, because the washing barrel has no drying and depositing process or the process is short and incomplete and deposition is carried out, the accumulation of the pollution degree of the barrel is slow, an accumulation interval coefficient K is set, different coefficients are set according to the lengths of the adjacent washing interval time and are accumulated and measured, so as to represent the influence of the time interval on the pollution degree; in addition, a water quality coefficient A is set to represent the influence of water on the pollution degree of the washing barrel. The method calculates the pollution degree increased by each complete washing period of the washing machine to obtain a pollution index, and accumulates the pollution indexes of the washing periods to be used as the accumulated pollution index of the washing machine.
In this example, the water quality coefficient Ai＝Di×∫f(Ti)dTi(i.gtoreq.1) wherein DiShows the water quality coefficient A of the hardness influence of the inlet water in the ith washingiIntegral multiple f (T)i)dTiIndicates the temperature T of the water in the washing tub in the ith washingiIntegrating, wherein the integration result influences the water quality coefficient Ai。
In this embodiment, the pollution caused by water quality is also related to the water temperature, so the value of a is related to the water temperature. Specifically, the size of A is in direct proportion to the water hardness D, and the higher the hardness D is, the larger the value of A is; proportional to the water temperature T, the higher the water temperature T, the greater the value of a. If the temperature change control is carried out in the washing program, the water temperature T is a variable, so the water temperature T is subjected to integral calculation, and the integral result is multiplied by the hardness D to obtain the water quality coefficient A.
In this embodiment, the temperature T of the water in the washing tub in the ith washing is set toi＝∫g(ti)dti(i is more than or equal to 1), the retention time t of the water in the washing barrel in the ith washingiIntegrating, wherein the integration result shows time tiInner water temperature TiA change in (c).
In this embodiment, the pollution caused by the water quality is related to the retention time of the water in the washing tub in addition to the water temperature, so the value of a is related to the water temperature and the retention time of the water. Specifically, the size of A is in direct proportion to the water hardness D, and the higher the hardness D is, the larger the value of A is; proportional to the water temperature T, the higher the water temperature T, the larger the value of A; proportional to time t, the longer time t, the larger the value of a. If the temperature change control is performed during the washing process, the water temperature T becomes a variable which changes with the time T, so the time T is integrated to represent the change of the water temperature T within the time T, thereby further explaining the correlation between the temperature T and the time T, and obtaining a more accurate water quality coefficient a after substituting the formula for integrating the temperature T.
In this embodiment, the water quality coefficient a is determined by the properties of the water body of the inflow water, so in the procedure without inflow water, the water quality coefficient a is 0; in addition, in order to match with a formula of an accumulated pollution index and reasonably characterize the contribution of the water quality coefficient A to the pollution degree of the washing barrel, a constant coefficient R is obtained through theoretical analysis and experimental verification, so that Ai＝R×Di×∫f(Ti)dTiOr A isi＝R×Di×∫∫h(Ti,ti)dTidti。
In this embodiment, the control method further comprises separately counting the water quality coefficient, setting the cumulative water quality coefficient as W,
the user is prompted to add a detergent for scale when W reaches a certain level.
In this embodiment, in addition to the water quality coefficient a being included in the cumulative pollution index S, the water quality coefficient a is also separately cumulatively calculated to help the user to know the degree of accumulation of scale in the washing tub, so as to add a detergent for the scale when the self-cleaning program is run.
In the embodiment, the washing machine presets a first reference value and a second reference value of the accumulated water quality coefficient W, prompts a user to add a detergent for scale when the washing machine runs a self-cleaning program when W exceeds the first reference value, and prompts the user to add the detergent for scale to soak a washing tub and then run the self-cleaning program when W or W/S exceeds the second reference value; preferably, when W exceeds the second reference value, the user is prompted to detach the barrel for cleaning, and the heating pipe is cleaned at the same time.
In the present embodiment, the cumulative interval coefficient
Wherein k isiAn interval coefficient representing the influence of each washing time interval before the ith washing on the pollution degree of the washing tub during the ith washing, andand counting the interval coefficient k of the first washing in the period1＝1。
In this embodiment, the washing machine records the time interval of each washing cycle in the statistical period, and when determining the accumulated interval coefficient of a certain washing cycle, the interval coefficient of each washing cycle counted before the washing cycle is multiplied, for better illustration of the present invention, the following examples are given:
when washing for the first time, the interval coefficient is set to be 1 because the washing for the first time has no interval;
at the time of the second washing, because there is interval between the second washing and the first washing, the cumulative interval coefficient is 1 × the interval coefficient of the second washing;
a third washing, wherein the cumulative interval coefficient is 1 multiplied by the interval coefficient of the second washing multiplied by the interval coefficient of the third washing because intervals exist among the third washing, the second washing and the first washing;
in the fourth washing, since there are intervals between the fourth, third, second and first washing, the cumulative interval coefficient is 1 × the interval coefficient of the second washing × the interval coefficient of the third washing × the interval coefficient of the fourth washing.
And by analogy, the interval coefficient product of a single washing can be multiplied to obtain a cumulative interval coefficient.
In this embodiment, the cumulative interval coefficient KiHas a preset minimum value, and K is obtained by measurement and calculationiAnd when the value is smaller than the preset minimum value, measuring and calculating according to the preset minimum value.
In this embodiment, since the interval coefficient includes a range of 0 to 1, in the case of a short interval time, the multiplication of the interval coefficient with a small value will cause the accumulated interval coefficient to tend to a smaller value, which affects the representation of the pollution level, and therefore, the interval coefficient K is setiAnd the minimum value of (a) ensures the accuracy of the characterization when the above occurs.
In this embodiment, the program coefficient P is obtained by accumulating coefficients corresponding to programs in the washing process, and the size of the interval coefficient k is positively correlated with the duration of the washing time interval.
In this embodiment, the washing procedure includes washing, dewatering, rinsing, drying, and the like, and because the contribution of each procedure to the pollution degree is different, different coefficients are set respectively, and the program coefficient P of single washing is obtained by accumulation or multiplication; when the time interval between the washing cycles is short, soil is not easily dried and deposited in the washing tub, and when the time interval is long, the deposition process of soil is facilitated, so that the value of the spacing coefficient k increases as the time interval increases.
In the embodiment, when the accumulated pollution index reaches or exceeds the critical value, the washing machine reminds a user to operate the self-cleaning program; preferably, the frequency of the laundry machine alerting the user is increased when the cumulative contamination index exceeds the critical value and is continuously increased.
In this embodiment, when the accumulated pollution index exceeds the threshold value, if the self-cleaning procedure is not performed, the index is continuously increased, so that the prompt frequency can be set according to the increase of the accumulated pollution index, and the user can be ensured to run the self-cleaning procedure in time.
In the embodiment, after the user runs the self-cleaning program, the accumulated pollution index is automatically reset and accumulated again; preferably, the cumulative pollution index can be manually cleared by a user according to the use condition.
In this embodiment, since the user may have other methods for cleaning the washing tub, the user may perform manual clearing in addition to automatically clearing the cumulative contamination index by the self-cleaning program.
Example 2
This example differs from example 1 in that:
in this example, the water quality coefficient is represented as Ai＝Di×∫∫h(Ti,ti)dTidti(i is more than or equal to 1), wherein ^ n ^ h (T)i,ti)dTidtiIndicates the temperature T of the water in the washing tub in the ith washingiAnd the retention time t of water in the washing tubiPerforming double integration, wherein the integration result influences the water quality coefficient Ai。
In this embodiment, through different modeling results, the factors influencing the water quality coefficient a are respectively from the water quality hardness D, the water temperature T and the retention time T of the water body in the washing tub, and the water quality hardness D is multiplied after the water temperature T and the retention time T of the water body in the washing tub are subjected to double integration without considering the functional relationship between the water temperature T and the retention time T, so that the complexity of calculating the water quality coefficient a is reduced.
In this embodiment, the water quality coefficient a is determined by the properties of the water inflow body, so in the procedure without water inflow, the water quality coefficient a is 0; in addition, in order to match with the formula of the cumulative pollution index and reasonably represent the contribution of the water quality coefficient A to the pollution degree of the washing barrel, a constant coefficient R is obtained through theoretical analysis and experimental verification, so that Ai＝R×Di×∫∫h(Ti,ti)dTidti。
In this embodiment, the control method further comprises separately counting the water quality coefficient, setting the cumulative water quality coefficient as W,
the user is prompted to add a detergent for scale when W reaches a certain level.
In this embodiment, the control method further includes counting a ratio of the accumulated water quality coefficient to the accumulated pollution index, where the ratio is W/S, and prompting a user to add a detergent for scale when a certain ratio is reached.
In this embodiment, in addition to bringing the water quality coefficient a into the cumulative pollution index S, the water quality coefficient a is also separately cumulatively calculated, and the ratio of the cumulative water quality coefficient W to the cumulative pollution index S is further calculated to help a user to know the degree of accumulation of scale in the washing tub, so as to add a cleaning agent for scale when the self-cleaning program is run.
In the embodiment, the washing machine presets a first reference value and a second reference value of the W/S, prompts a user to add a cleaning agent for scale when the self-cleaning program is operated when the W/S exceeds the first reference value, and prompts the user to add the cleaning agent for scale to soak the washing tub and then operate the self-cleaning program when the W/S exceeds the second reference value; preferably, when the W/S exceeds the second reference value, the user is prompted to detach the barrel for cleaning, and the heating pipe is cleaned at the same time.
In the present embodiment, the cumulative interval coefficient
Wherein k isiInterval coefficient for indicating that each washing time interval before ith washing influences the pollution degree of the washing barrel in ith washing, and interval coefficient k of the first washing when the statistical period i is 11Interval coefficient k of the first washing when 1, i > 11＝0。
In this embodiment, the washing machine records the time interval of each washing cycle in the statistical period, and when determining the accumulated interval coefficient of a certain washing cycle, the interval coefficient of each washing cycle counted before the washing cycle is accumulated, for better illustration of the present invention, the following examples are given:
in the first washing, the interval coefficient is set to be 1 because the washing has no interval but the program coefficient P is not 0;
in the second washing, the accumulated interval coefficient is equal to the interval coefficient of the first washing plus the interval coefficient of the second washing because there is an interval between the second washing and the first washing, and the interval coefficient of the first washing is set to 0 if the accumulated interval coefficient is not zero because there is no interval before the first washing;
in the third washing, since there are intervals between the third washing, the second washing and the first washing, the cumulative interval coefficient is equal to the interval coefficient of the first washing, the interval coefficient of the second washing and the interval coefficient of the third washing, and since there is no interval before the first washing, the interval coefficient of the first washing is set to 0 if the cumulative interval coefficient is not zero.
And by analogy, accumulating the interval coefficients of single washing to obtain a cumulative interval coefficient.
Meanwhile, the accumulated interval coefficient in the embodiment is calculated in an accumulation mode, so that the problem that the product multiplication result is too small when a product multiplication method is adopted does not exist, and the problem that the product multiplication result is too small when the product multiplication method is adopted does not existSetting the cumulative Interval coefficient KiIs set to the preset minimum value.
Other embodiments of this example are the same as example 1.
Example 3
This example differs from example 1 or 2 in that:
in this embodiment, the washing temperature of the washing machine is adjustable, and the cumulative contamination index of the washing tub in each washing is set
T′iA temperature coefficient indicating that the selected washing temperature of the ith washing affects the degree of contamination of the washing tub.
In this embodiment, the washing temperature affects the molecular activity and the degree of bacteria growth, so the temperature coefficient T' is set on the basis of the program coefficient P and the cumulative interval coefficient K, and different coefficients are set according to different washing temperatures based on theoretical analysis and experimental verification, to characterize the effect of the washing temperatures on the pollution degree.
In this embodiment, the program coefficient P is obtained by accumulating coefficients corresponding to programs in a washing process, the size of the interval coefficient k is in positive correlation with the washing time interval duration, and the temperature coefficient T' is decreased after gradually increasing from low to high with temperature.
In this embodiment, the washing procedure includes washing, dewatering, rinsing, drying, and the like, and because the contribution of each procedure to the pollution degree is different, different coefficients are set respectively, and the program coefficient P of single washing is obtained by accumulation or multiplication; when the time interval between the washing cycles is short, dirt is not easy to dry and deposit in the washing barrel, and the longer interval time is beneficial to the dirt deposition process, so that the numerical value of the interval coefficient k is increased along with the increase of the time interval; the temperature is also an important factor influencing the survival rate of bacteria, the bacteria are not easy to breed when the temperature is lower, the temperature coefficient T 'is lower, but the temperature gradually increases to the highest point along with the increase of the temperature and enters the range suitable for the growth of the bacteria, and the high-temperature environment plays a role in inactivating the bacteria along with the further increase of the temperature, and the corresponding temperature coefficient T' is reduced to the lowest point along with the increase of the temperature.
Other embodiments of this example are the same as examples 1 or 2.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. A washing machine control method is characterized in that the washing machine at least takes the quality of inlet water as an influence factor to measure and calculate the pollution index of a washing barrel in single washing, and reminds a user to operate a self-cleaning program when the accumulated pollution index of multiple washing reaches or exceeds a critical value;
the cumulative contamination index of the washing tub in each washing is set to S,
wherein i represents the ith wash within the statistical period of the single wash, PiProgram factor, K, representing the degree of soiling of the washing tub by the washing program selected for the ith washiAn accumulated interval coefficient, A, representing the accumulated influence of each washing time interval before the ith washing on the pollution degree of the washing tubiAnd the water quality coefficient shows the influence of the water quality of the inlet water on the pollution degree in the ith washing.
2. The control method according to claim 1, wherein the washing machine further measures and calculates the pollution index by using the selected washing program and/or operation information as influence factors, the operation information comprises one or more of washing temperature, washing time, washing times and washing intervals, and the washing machine measures and calculates the pollution index according to coefficients corresponding to each item of operation information.
3. The control method according to claim 2, wherein the operation information includes a washing interval and a washing temperature.
4. The control method according to claim 2, wherein the operation information is a washing interval.
5. The control method according to claim 2, wherein the washing machine sets a corresponding coefficient according to the contribution of the inflow water quality and/or the washing program and/or the operation information to the pollution degree of the washing tub, so as to measure and calculate the pollution index; and the washing machine accumulates and calculates the pollution indexes of each single washing in the statistical period to obtain an accumulated pollution index.
6. The control method according to any one of claims 1 to 5, wherein the pollution index comprises a water quality coefficient obtained by measuring the contribution of the quality of inlet water in a single washing to the pollution degree of the washing tub; the accumulated pollution index also comprises an accumulated water quality coefficient, and the accumulated water quality coefficient is obtained by measuring and calculating the contribution of the water quality of the inlet water in multiple times of washing to the pollution degree of the washing barrel.
7. The control method according to any one of claims 1 to 5, wherein the quality of the inlet water comprises water hardness, temperature of the water in the washing tub and retention time of the water in the washing tub, and the washing machine converts the contribution of each quality of the inlet water to the pollution degree of the washing tub into a water quality coefficient.
8. The control method of claim 7, wherein the water quality factor comprises integrating a temperature of the body of water within the wash tub.
9. The control method of claim 7, wherein the water quality factor comprises integrating a temperature of the body of water in the wash tub and/or a residence time of the body of water in the wash tub.
10. The control method according to any one of claims 1 to 5, further comprising counting a ratio of the cumulative water quality coefficient to the cumulative pollution index, wherein the ratio prompts a user to add a detergent for scale when a certain ratio is reached.
11. The control method according to claim 10, wherein the washing machine presets a first reference value and a second reference value of the accumulated water quality coefficient or the duty ratio, prompts a user to add a detergent for scale when the self-cleaning program is operated when the accumulated water quality coefficient or the duty ratio exceeds the first reference value, and prompts the user to add the detergent for scale to soak the washing tub and then to operate the self-cleaning program when the accumulated water quality coefficient or the duty ratio exceeds the second reference value.
12. The control method according to claim 11, wherein when the accumulated water quality coefficient or the percentage exceeds the second reference value, a user is prompted to perform barrel-dismantling cleaning while cleaning the heating pipe.
13. The control method as claimed in any one of claims 1 to 5, wherein the washing machine reminds a user of running a self-cleaning program when the cumulative pollution index reaches or exceeds a critical value.
14. The control method of claim 13, wherein the frequency of the washing machine alerting the user is increased when the cumulative pollution index exceeds the critical value and is continuously increased.
15. The control method according to claim 1, wherein the water quality coefficient Ai＝Di×∫f(Ti)dTi(i.gtoreq.1) wherein DiShows the influence of the hardness of the inlet water on the water quality coefficient A in the ith washingiIntegral of the hardness factor of (c), [ integral of ]f(Ti)dTiIndicates the temperature T of the water in the washing tub in the ith washingiIntegrating, wherein the integration result influences the water quality coefficient Ai(ii) a The temperature T of the water in the washing barrel in the ith washingi＝∫g(ti)dti(i is more than or equal to 1), the retention time t of the water in the washing barrel in the ith washingiIntegrating, wherein the integration result shows time tiInner water temperature TiA change in (c).
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| CN112323347B (en) * | 2020-06-18 | 2022-12-13 | 深圳Tcl新技术有限公司 | Cleaning method for internal environment of laundry equipment, terminal equipment and storage medium |
| CN112726109B (en) * | 2020-12-14 | 2023-08-18 | 青岛海尔科技有限公司 | Self-cleaning method and device for washing machine, storage medium and electronic device |
| JP2022102165A (en) * | 2020-12-25 | 2022-07-07 | 青島海爾洗衣机有限公司 | washing machine |
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| KR100468918B1 (en) * | 2002-05-21 | 2005-02-02 | 삼성전자주식회사 | Drum type washing machine and control method thereof |
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