Filter contamination state processing method, electronic device and clothes drying device

Abstract

The application discloses a filter pollution state processing method, which comprises the following steps: acquiring a detection voltage and a detection current of a fan of a clothes drying device in a detection state; calculating a correction power of the fan based on a correction coefficient, the detection voltage and the detection current; and comparing and determining a pollution state of the filter based on the correction power and a reference power of the fan in a cleaning state. Through the technical scheme provided by the application, the actual operation power of the fan is corrected by using the correction coefficient, and the pollution state is determined by comparing the corrected power with the reference power, so that the pollution conditions of the lint, sundries and the like on the filter (or a filter collector, such as a filter screen and the like) can be accurately judged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent devices, and more particularly to a filter pollution state processing method, an electronic device and a clothes drying device. BACKGROUND

[0002] After washing, the wet clothes can be quickly dried by using a clothes drying device, which can be done anytime and anywhere without being affected by weather and other objective factors. This clothes drying method is more convenient and faster than traditional natural drying, so the clothes drying device has gradually entered thousands of households and has become a household appliance favored by consumers.

[0003] The existing clothes drying device drives circulating hot air by a fan, evaporates the moisture of the clothes by air flow, and removes the moisture by water condensation or air condensation. Then, under the action of the heating device and the fan, the hot air enters the drying drum (inner drum) again, and the cycle is repeated to dry the clothes. However, when drying the clothes, the lint, threads and other foreign matters of the clothes will be blown into the drying air duct by the circulating air. In order to prevent the lint, threads and other foreign matters from entering the air duct and the drying drum with the circulating air, a filter screen is generally arranged in the drying air duct so as to filter out the lint, threads and other foreign matters. When the lint, threads and other foreign matters in the filter screen accumulate too much, on the one hand, the filter screen will be blocked, which will cause poor air flow and thus reduce the drying effect. On the other hand, the accumulation of the lint, threads and other foreign matters for a long time will also cause odor, which reduces the user experience. SUMMARY

[0004] In view of this, it is necessary to accurately detect the pollution state of the filter for the clothes drying device and the user. Therefore, the present application discloses a filter pollution state processing method, an electronic device and a clothes drying device.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present application is as follows:

[0006] According to a first aspect of an embodiment of the present application, a filter pollution state processing method is provided, which is used for a clothes drying device, and includes the following steps:

[0007] obtaining a detection voltage and a detection current of a fan of the clothes drying device in a detection state;

[0008] calculating a corrected power of the fan based on a correction coefficient, the detection voltage and the detection current;

[0009] comparing and determining a pollution state of the filter based on the corrected power and a reference power of the fan in a cleaning state.

[0010] As a further embodiment of the first aspect of the present application, the detection state includes a cooling stage before the end of clothes drying, and the fan runs at a fixed speed.

[0011] As a further embodiment of the first aspect of the present application, the correction coefficient includes a voltage correction coefficient, the voltage correction coefficient is determined according to a second function with the detection voltage as an independent variable, or the voltage correction coefficient is determined according to the detection voltage and a rated voltage of the fan, or the voltage correction coefficient satisfies K2=U / U0, wherein K2 represents the voltage correction coefficient, U represents the detection voltage, and U0 represents the rated voltage; and / or the correction coefficient includes a clothes correction coefficient, the clothes correction coefficient is determined according to a first function with a clothes drying weight as an independent variable, or the clothes correction coefficient is determined according to a volume of an inner drum of the clothes drying device, a volume-to-weight ratio of a first material type of clothes, a volume-to-weight ratio of a second material type of clothes, and the clothes drying weight, or the clothes correction coefficient satisfies wherein K1 represents the clothes correction coefficient, V represents the volume of the inner drum of the clothes drying device, a1 represents the volume-to-weight ratio of the first material type of clothes, a2 represents the volume-to-weight ratio of the second material type of clothes, and m2 represents the clothes drying weight.

[0012] As a further embodiment of the first aspect of the present application, the correction power of the fan is calculated based on the correction coefficient, the detection voltage, and a detection current, including:

[0013] In a case where the clothes are the first material type of clothes and the clothes drying weight exceeds a weight threshold: the correction power is obtained based on a voltage correction coefficient and a clothes correction coefficient in the correction coefficient, and the detection voltage and the detection current, or the correction power is obtained based on P2=U×I×K1×K2, wherein P2 represents the correction power, U represents the detection voltage, I represents the detection current, K1 represents the clothes correction coefficient, and K2 represents the voltage correction coefficient; and / or,

[0014] In a case where the clothes drying weight does not exceed the weight threshold or the clothes are the second material type of clothes: the correction power is obtained based on a voltage correction coefficient in the correction coefficient, the detection voltage, and the detection current, or the correction power is obtained based on P2=U×I×K2, wherein P2 represents the correction power, U represents the detection voltage, I represents the detection current, and K2 represents the voltage correction coefficient.

[0015] As a further embodiment of the first aspect of the present application, the method further includes:

[0016] obtaining a weight of the clothes after dehydration and a clothes drying weight reflecting a drying effect;

[0017] The moisture content of the clothes is calculated based on the weight of the clothes after dewatering and the weight of the clothes after drying, or the moisture content of the clothes is calculated based on ρ=(m1-m2) / m2, wherein ρ represents the moisture content of the clothes, m1 represents the weight of the clothes after dewatering, and m2 represents the weight of the clothes after drying;

[0018] It is determined whether the clothes are clothes of the first material type or clothes of the second material type according to a comparison between the moisture content of the clothes and a moisture content threshold.

[0019] As a further embodiment of the first aspect of the present application, the comparison between the corrected power and the reference power of the fan in the cleaning state to determine the pollution state of the filter comprises: determining the pollution state of the filter according to a ratio of the corrected power to the reference power and a range of ratios corresponding to different pollution degrees.

[0020] The second aspect of the embodiment of the present application provides a filter pollution state processing method, which is used in a clothes drying device and comprises the following steps of:

[0021] The detection voltage and the detection current of the fan of the clothes drying device in a detection state are obtained.

[0022] The pollution state of the filter is output, and the pollution state of the filter becomes more serious with an increase of a ratio of the corrected power to the reference power, wherein the corrected power is determined based on a correction coefficient, the detection voltage and the detection current, and the reference power is the power of the fan in the cleaning state.

[0023] As a further embodiment of the second aspect of the present application, the detection state comprises a cooling stage before the clothes drying ends, and the fan operates at a fixed speed.

[0024] As a further embodiment of the second aspect of the present application, the correction coefficient comprises a voltage correction coefficient, the voltage correction coefficient is determined according to a second function with the detection voltage as an independent variable, or the voltage correction coefficient is determined according to the detection voltage and a rated voltage of the fan, or the voltage correction coefficient satisfies K2=U / U0, wherein K2 represents the voltage correction coefficient, U represents the detection voltage, and U0 represents the rated voltage.

[0025] And / or,

[0026] The correction coefficient comprises a clothes correction coefficient, the clothes correction coefficient is determined according to a first function with the weight of the clothes after drying as an independent variable, or the clothes correction coefficient is determined according to a volume of an inner drum of the clothes drying device, a volume-weight ratio of clothes of the first material type, a volume-weight ratio of clothes of the second material type and the weight of the clothes after drying, or the clothes correction coefficient satisfies K1*V*al*U*I, or P2=U*I*K1*K2, wherein P2 represents the correction power, U represents the detection voltage, I represents the detection current, K1 represents the clothes correction coefficient, and K2 represents the voltage correction coefficient.

[0027] As a further embodiment of the second aspect of the present application, in the case that the clothes are clothes of the first material type and the clothes dry weight exceeds the weight threshold: the correction power is obtained based on the voltage correction coefficient and the clothes correction coefficient in the correction coefficients, and the detection voltage and the detection current, or the correction power is obtained based on P2=U*I*K1*K2, wherein P2 represents the correction power, U represents the detection voltage, I represents the detection current, K1 represents the clothes correction coefficient, and K2 represents the voltage correction coefficient; and / or, in the case that the clothes dry weight does not exceed the weight threshold or the clothes are clothes of the second material type: the correction power is obtained based on the voltage correction coefficient in the correction coefficients, the detection voltage and the detection current, or the correction power is obtained based on P2=U*I*K2, wherein P2 represents the correction power, U represents the detection voltage, I represents the detection current, and K2 represents the voltage correction coefficient.

[0028] As a further embodiment of the second aspect of the present application, the method further comprises: obtaining a clothes weight after dehydration and a clothes dry weight reflecting the drying effect; and calculating a clothes moisture content based on the clothes weight after dehydration and the clothes dry weight, or calculating the clothes moisture content based on p=(m1-m2) / m2, wherein p represents the clothes moisture content, m1 represents the clothes weight after dehydration, and m2 represents the clothes dry weight; and determining whether the clothes are clothes of the first material type or clothes of the second material type according to a comparison between the clothes moisture content and a moisture content threshold.

[0029] As a further embodiment of the second aspect of the present application, the pollution state of the filter is determined according to a ratio of the correction power to the reference power, and a range of ratios corresponding to different pollution degrees.

[0030] In a third aspect of the embodiments of the present application, a non-transitory computer readable storage medium is provided, which has program instructions stored thereon, and when the program instructions are executed by one or more processors, the one or more processors are configured to implement the method according to any one of the first aspect or the second aspect.

[0031] In a fourth aspect of the embodiments of the present application, an electronic device is provided, which comprises: a memory configured to store computer program instructions; and a processor configured to invoke and execute the computer program instructions to implement the method according to any one of the first aspect or the second aspect.

[0032] In a fifth aspect, the present application provides a clothes drying device, which adopts the method according to any one of the first aspect or the second aspect, or has the computer storage medium according to the third aspect or the electronic device according to the fourth aspect.

[0033] In the related embodiments of the present application, the actual running power of the fan is corrected by using the correction coefficient, and the pollution state is determined by comparing the corrected power with the reference power, so that the pollution of the hair and sundries on the filter (or filter collector, such as filter screen, etc.) can be accurately determined. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

[0035] Figure 1 is a flowchart of a filter pollution state processing method according to an embodiment of the present application;

[0036] Figure 2 is a flowchart of a filter pollution state processing method according to an embodiment of the present application;

[0037] Figure 3 is a flowchart of a filter pollution state processing method according to an embodiment of the present application;

[0038] Figure 4 is a structural schematic diagram of a clothes drying device according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0040] The terms used in the embodiments of the present application are only for the purpose of describing particular embodiments and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are intended to include the plural forms as well, unless the context clearly indicates otherwise. "Plural" generally includes at least two but does not exclude the case of including at least one.

[0041] It should be understood that the term "and / or" as used herein merely describes an associated relationship, which means that there can be three relationships, for example, A and / or B, which means that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " generally represents an "or" relationship between the front and rear associated objects.

[0042] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a product or system. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the product or system including the element.

[0043] Hereinafter, exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, detailed descriptions of related known functions or configurations are omitted to avoid unnecessarily obscuring the technical points of the present application. In addition, throughout the description, the same reference numerals always refer to the same circuit, module or unit, and repeated descriptions of the same circuit, module or unit are omitted for brevity.

[0044] In addition, it should be understood that one or more of the following methods or aspects thereof can be performed by at least one control system, control unit or controller. The term "control unit", "controller", "control module" or "master control module" can refer to a hardware device including a memory and a processor, and the term "air conditioner" can refer to a similar refrigeration device. The memory or computer readable storage medium is configured to store program instructions, and the processor is specifically configured to execute the program instructions to perform one or more processes to be described further below. Moreover, it should be understood that the following methods can be performed by including a processor and in combination with one or more other components, as will be appreciated by those of ordinary skill in the art.

[0045] Figure 1 is a flowchart of a filter contamination state processing method according to an embodiment of the present application, which is applied to a clothes drying apparatus. An exemplary structural schematic diagram of a clothes drying apparatus is shown in Figure 4 The clothes drying apparatus drives circulating hot air by a fan 12, evaporates moisture of clothes by air flow, and removes moisture by water condensation or air condensation, and then the hot air enters the drying drum 10 again under the action of a heating device 14 and the fan 12, so as to circulate repeatedly to dry the clothes. A filter 16 is installed in the air duct to block lint, debris and the like from entering the air duct and the drying drum 10 under the action of circulating air. Referring to Figure 1 , the contamination state processing method includes:

[0046] 100: Obtain the detection voltage and the detection current of the fan of the clothes drying device in the detection state. The clothes drying device can be a washer-dryer or a clothes dryer, etc. Based on the processing 100, the real-time power of the fan in the detection state can be calculated. For the values of the detection voltage and the detection current, a conventional sampling method can be used.

[0047] 102: Calculate the corrected power of the fan based on the correction coefficient, the detection voltage and the detection current. The real-time power is corrected by using the correction coefficient, which is beneficial to obtain the corrected power reflecting the running state of the fan in the actual running environment.

[0048] 104: Compare and determine the pollution state of the filter based on the corrected power and the reference power of the fan in the cleaning state. The reference power reflects the working state of the fan in the cleaning state, and its value can be obtained under experimental conditions. For example, the voltage and current are collected when the fan runs at a fixed speed in a new machine state (the filter collector is clean, the air duct is clean, and the fan state is good).

[0049] By using the method provided in the embodiment, the actual running power of the fan is corrected by using the correction coefficient, and the pollution state is determined by comparing the corrected power and the reference power, which can accurately determine the pollution of the hair and sundries on the filter (or filter collector, such as filter screen, etc.).

[0050] Optionally, in an embodiment of the present application, the detection state in the processing 100 is the state that the air humidity / density in the inner drum of the clothes drying device is relatively stable, as shown in the embodiment. Figure 1 Optionally, in an embodiment of the present application, the detection state in the processing 100 is the state that the fan runs stably, as shown in the embodiment. At this time, the influence of the power fluctuation caused by the running fluctuation of the fan can be greatly reduced, which is beneficial to accurately determine the pollution of the hair or sundries on the filter collector.

[0051] Optionally, in an embodiment of the present application, the detection state in the processing 100 is the state that the air humidity / density in the inner drum of the clothes drying device is relatively stable, as shown in the embodiment. Figure 1 Optionally, in an embodiment of the present application, the detection state in the processing 100 is the state that the fan runs stably, as shown in the embodiment. At this time, the influence of the power fluctuation caused by the running fluctuation of the fan can be greatly reduced, which is beneficial to accurately determine the pollution of the hair or sundries on the filter collector.

[0052] Optionally, in an embodiment of the present application, the detection state in the processing 100 is the state that the air humidity / density in the inner drum of the clothes drying device is relatively stable, as shown in the embodiment. Figure 1The detecting state in the process 100 of the embodiment is referred to as a state in which the air humidity / density in the inner drum of the clothes drying apparatus is relatively stable, and the blower fan is stably operated. For example, an exemplary "detecting state" can be a state in which the clothes drying apparatus is in a cooling stage before the end of clothes drying, and the blower fan is operated at a fixed speed. Of course, the detecting state is not limited to this, and for example, it can be a process separately activated after the end of the drying state (at this time, the air humidity / density is stable), in which the blower fan is operated at a fixed speed.

[0053] Optionally, in an embodiment of the present application, the correction coefficient is determined according to a second function with the detected voltage as an argument. Figure 1 The correction coefficient in the process 102 of the embodiment is referred to as a voltage correction coefficient and / or a current correction coefficient. Details are described below.

[0054] The voltage correction coefficient is determined according to a second function with the detected voltage as an argument. Or, the voltage correction coefficient is determined according to the detected voltage and a rated voltage of the blower fan. Or, the voltage correction coefficient satisfies K2=U / U0 (the second function), where K2 represents the voltage correction coefficient, U represents the detected voltage, and U0 represents the rated voltage.

[0055] The clothes correction coefficient is determined according to a first function with a clothes drying weight (reflecting a drying effect, which can be measured in a cooling stage before the end of drying in the embodiment) as an argument. Or, the clothes correction coefficient is determined according to the inner drum volume of the clothes drying apparatus, a first material type clothes volume-weight ratio, a second material type clothes volume-weight ratio, and the clothes drying weight. Or, the clothes correction coefficient satisfies K1=V / (a1+a2m2) (the first function), where K1 represents the clothes correction coefficient, V represents the inner drum volume of the clothes drying apparatus, a1 represents the first material type clothes volume-weight ratio, which is usually set as a constant, a2 represents the second material type clothes volume-weight ratio, which is usually set as a constant, and m2 represents the clothes drying weight. The first material type clothes volume-weight ratio a1 and the second material type clothes volume-weight ratio a2 are usually set as constants. The first material type clothes volume-weight ratio a1 is a volume-weight ratio of clothes of a first material type, and the second material type clothes volume-weight ratio a2 is a volume-weight ratio of clothes of a second material type. The first material type clothes volume-weight ratio a1 and the second material type clothes volume-weight ratio a2 can be determined according to the following formula:

[0056] The first material type clothes volume-weight ratio a1 and the second material type clothes volume-weight ratio a2 are usually set as constants. The first material type clothes volume-weight ratio a1 is a volume-weight ratio of clothes of a first material type, and the second material type clothes volume-weight ratio a2 is a volume-weight ratio of clothes of a second material type. The first material type clothes volume-weight ratio a1 and the second material type clothes volume-weight ratio a2 can be determined according to the following formula:

[0057] Optionally, in an embodiment of the present application, the correction coefficient is determined according to a second function with the detected voltage as an argument. Figure 1 The process 102 of the embodiment can include the following implementation or similar implementation.

[0058] In a case where the clothes are clothes of the first material type and the detected weight of the clothes in the drying state exceeds the weight threshold, the correction power is obtained based on the voltage correction factor and the clothes correction factor in the correction factors, and the detected voltage and the detected current, or is obtained based on P2=U×I×K1×K2, where P2 represents the correction power, U represents the detected voltage, I represents the detected current, K1 represents the clothes correction factor, and K2 represents the voltage correction factor.

[0059] The inventor found in research that the influence of clothes of special material on power is different from that of clothes of ordinary material, and the difference is more obvious when the weight of clothes of special material exceeds a critical threshold. By introducing the fan power correction method in the case of clothes of special material, the implementation manner can effectively avoid misjudgment caused by power fluctuation due to air resistance of clothes in the drying drum, and accurately determine the pollution condition of lint or impurities on the filter.

[0060] In a case where the weight of the clothes in the drying state does not exceed the weight threshold or the clothes are clothes of the second material type, the correction power is obtained based on the voltage correction factor in the correction factors, the detected voltage, and the detected current, or is obtained based on P2=U×I×K2, where P2 represents the correction power, U represents the detected voltage, I represents the detected current, and K2 represents the voltage correction factor.

[0061] By introducing the fan power correction method of the voltage correction factor, the implementation manner can accurately calculate the pollution condition of lint or impurities on the filter.

[0062] The two correction factors detected in specific states and their use introduced in the embodiments of the present application have higher detection accuracy compared to related technologies that rely on environmental parameters such as humidity (because accurate detection of humidity is difficult, and fluctuations in the value of humidity have a greater impact on the accuracy of fan power, which is prone to misjudgment).

[0063] Optionally, in an embodiment of the present application, as shown in the embodiment of Figure 1 The method further includes a clothes material detection process, with reference to the embodiment shown. In the detection, the weight of the clothes after dehydration and the weight of the clothes in the drying state are first obtained, and then the water content of the clothes is calculated based on the weight of the clothes after dehydration and the weight of the clothes in the drying state. By comparing the water content of the clothes with a water content threshold, it can be determined whether the clothes are clothes of the first material type (special) or clothes of the second material type (ordinary). The water content threshold can be obtained by testing under ideal conditions in a laboratory, or can be obtained from empirical data.

[0064] The moisture content of the clothes can be calculated based on p=(m1-m2) / m2, wherein p represents the moisture content of the clothes, m1 represents the weight of the clothes after dehydration, and m2 represents the dry weight of the clothes.

[0065] Optionally, in an embodiment of the present application, the pollution state of the filter can be determined according to the ratio of the corrected power to the reference power and the range of the ratio corresponding to different pollution degrees. Figure 1 As shown in the embodiments, the pollution state of the filter can be determined according to the ratio of the corrected power to the reference power and the range of the ratio corresponding to different pollution degrees.

[0066] For example, the pollution state can be divided into at least two pollution levels, the value range of the ratio of the corrected power to the reference power corresponding to different pollution levels is different, and different pollution levels can correspond to different action prompts, such as whether cleaning is needed, cleaning precautions, etc.

[0067] Figure 2 FIG. 1 is a flowchart of a method for processing a pollution state of a filter according to an embodiment of the present application. As shown in FIG. 1, the method comprises the following steps. Figure 2 , the method comprises:

[0068] 200: Obtain a detection voltage and a detection current of a fan of a clothes drying device in a detection state.

[0069] 202: Output a pollution state of the filter, the pollution state being more serious with an increase of the ratio of the corrected power to the reference power. The corrected power is determined based on a correction coefficient, the detection voltage and the detection current, and the reference power is a power of the fan in a clean state.

[0070] The method provided in the embodiment can accurately remind a user of the pollution degree of the filter and / or the cleaning time. The user can be prevented from repeatedly cleaning, and the workload of using the product can be reduced. By reminding the user to clean the fluff and sundries in the filter collector in time, the fluff can be prevented from polluting the clothes, the reproduction of bacteria and other microorganisms can be reduced, and the generation of odor can be reduced, thereby ensuring health. Cleaning the fluff and sundries in the filter collector in time can also greatly improve the drying efficiency and shorten the drying time.

[0071] In other embodiments of the present application, the explanations of related terms such as the detection state, the pollution state, the correction coefficient, the reference power, and the descriptions of the processing logic, the judgment conditions, the processing steps before and after, the effects, etc. associated therewith can refer to the descriptions in the foregoing embodiments, which will not be repeated here.

[0072] Figure 3 FIG. 1 is a flowchart of a method for processing a pollution state of a filter according to an embodiment of the present application. As shown in FIG. 1, the method comprises the following steps. Figure 3 , the method comprises:

[0073] 300: Weigh the load of laundry after dehydration. Specifically, when the user needs to use the drying device to dry the load of laundry, the load of laundry can be wet clothes. First, the load of laundry is weighed after dehydration, and the weight value is set as m1, and then the drying stage is entered.

[0074] 301: Secondary weighing and calculation of moisture content. In the cooling stage near the end of drying, the clothes in the drum are weighed again, and the weight value obtained is m2. The moisture content of the clothes is calculated using the two weight values: p = (m1-m2) / m2

[0075] ρ0 is set as the moisture content judgment value of special material clothes, which can be obtained by testing under ideal conditions in the laboratory or by empirical data. When p≥ρ0, it is determined that the clothes are special material (including but not limited to down, wool, etc.) clothes.

[0076] m0 is set as the critical weight value of the fan power change caused by special material clothes, which can be measured under ideal conditions in the laboratory.

[0077] Because different clothes materials will cause different air resistance in the airflow circulation path from the inner drum to the fan, affecting the fan power change. Therefore, 302 is executed: whether p≥ρ0 and m2>m0 are met, if met, 303, 304, and 305 are executed. Otherwise, 306 and 307 are executed.

[0078] 303: Calculate the clothes correction coefficient of special clothes by function K1(m). Exemplarily, the function K1(m) is: K1 represents the clothes correction coefficient, V represents the volume of the inner drum of the drying device, a1 represents the volume weight ratio of the first material type clothes, a2 represents the volume weight ratio of the second material type clothes, and m2 represents the drying weight of the clothes.

[0079] 304: Collect power and calculate voltage correction coefficient by function K2(U). For example, synchronously with the processing of 303, the speed of the fan detection power is set to a fixed speed, and the real-time power detection is performed in the cooling stage before the end of drying. The control program and device of the drying device obtain the current I and voltage U of the fan by sampling, and obtain the real-time power P1=U×I of the fan.

[0080] Based on the voltage U obtained by sampling, the voltage correction coefficient is obtained by using the function K2(U). Exemplarily, K2=U / U0, and U0 represents the rated voltage of the fan.

[0081] 305: Calculate the corrected power: P2=U×I×K1×K2.

[0082] 306: Collect power and calculate the voltage correction factor using the function K2(U). See section 304 for more details.

[0083] 307: Calculate the correction power: P2 = U × I × K2.

[0084] 308: Calculate the pollution index: β = P2 / P0. Here, P0 is set as the fan power operating under ideal laboratory conditions, assuming the filter is completely clean.

[0085] 309: Determines the pollution level based on the pollution index and reminds users.

[0086] Specifically, different contamination levels can be set to more clearly indicate the degree of contamination to the user. For example, there are five contamination levels: clean, slightly contaminated, moderately contaminated, heavily contaminated, and extremely heavily contaminated.

[0087] The relationship between the pollution index and the pollution level is defined as follows:

[0088] Pollution level Clean Slightly polluted Moderately polluted Heavily polluted Extremely heavily polluted Pollution index ≤ β1 [β1< β < β2] [β2< β < β3] β3 < β < β4 [.β4 < β]]

[0089] Based on the above method, multiple sets of real-time power can be detected and compared. After the pollution level is determined by the pollution index, a filter cleaning reminder message can be sent to the user through signals such as sound, light, and electricity.

[0090] According to one embodiment of the present invention, a computer-readable storage medium is also provided, on which computer program instructions are stored, which, when executed by one or more processors, implement any of the filter contamination state processing methods described above.

[0091] According to one embodiment of the present invention, an electronic device is also provided, comprising: a memory for storing computer program instructions; and a processor for calling and executing the computer program instructions to implement any of the filter contamination status processing methods described above. Furthermore, the electronic device may also include input / output interfaces, for example, for acquiring (receiving / writing / reading, etc.) relevant data and outputting contamination levels and alerts, etc.

[0092] According to one embodiment of the present invention, a clothes drying device is also provided, which employs any of the filter contamination treatment methods described above, or has the computer-readable storage medium described above, or has the electronic equipment described above.

Claims

1. A filter contamination state processing method characterized by, The method is used for a clothes drying apparatus, and comprises: obtaining a detection voltage and a detection current of a fan of the clothes drying apparatus in a detection state; calculating a corrected power of the fan based on a correction coefficient, the detection voltage and the detection current; comparing the corrected power with a reference power of the fan in a cleaning state to determine a pollution state of a filter; the calculating of the corrected power of the fan based on the correction coefficient, the detection voltage and the detection current comprises: in a case where clothes are clothes of a first material type and a clothes drying weight exceeds a weight threshold value: the corrected power is obtained based on a voltage correction coefficient and a clothes correction coefficient in the correction coefficient, and the detection voltage and the detection current, or the corrected power is obtained based on P2=U×I×K1×K2, wherein P2 represents the corrected power, U represents the detection voltage, I represents the detection current, K1 represents the clothes correction coefficient, and K2 represents the voltage correction coefficient; and / or, in a case where the clothes drying weight does not exceed the weight threshold value or the clothes are clothes of a second material type: the corrected power is obtained based on a voltage correction coefficient in the correction coefficient, the detection voltage and the detection current, or the corrected power is obtained based on P2=U×I×K2, wherein P2 represents the corrected power, U represents the detection voltage, I represents the detection current, and K2 represents the voltage correction coefficient. the detection state comprises:

2. The method of claim 1, wherein, a cooling stage before clothes drying ends, and the fan operates at a fixed speed.

3. The method of claim 1, wherein: the correction coefficient comprises a voltage correction coefficient, the voltage correction coefficient is determined according to a second function with the detection voltage as an independent variable, or the voltage correction coefficient is determined according to the detection voltage and a rated voltage of the fan, or the voltage correction coefficient satisfies K2=U / U0, wherein K2 represents the voltage correction coefficient, U represents the detection voltage, and U0 represents the rated voltage; and / or, the method further comprises: obtaining a clothes weight after dehydration and a clothes drying weight reflecting a drying effect; The correction coefficient includes a clothes correction coefficient determined according to a first function with a clothes drying weight as an independent variable, or determined according to an inner drum volume of the clothes drying apparatus, a volume-to-weight ratio of clothes of a first material type, a volume-to-weight ratio of clothes of a second material type, and the clothes drying weight, or satisfies wherein K1 represents the clothes correction coefficient, V represents the inner drum volume of the clothes drying apparatus, a1 represents the volume-to-weight ratio of clothes of the first material type, a2 represents the volume-to-weight ratio of clothes of the second material type, and m2 represents the clothes drying weight.

4. The method of claim 1, wherein, calculating a clothes moisture content based on the clothes weight after dehydration and the clothes drying weight, or calculating the clothes moisture content based on p=(m1-m2) / m2, wherein p represents the clothes moisture content, m1 represents the clothes weight after dehydration, and m2 represents the clothes drying weight; determining whether the clothes are clothes of a first material type or clothes of a second material type according to the clothes moisture content and a moisture content threshold. the comparing of the corrected power with the reference power of the fan in the cleaning state to determine the pollution state of the filter comprises: determining the pollution state of the filter according to a ratio of the corrected power to the reference power and a range of ratios corresponding to different pollution degrees.

5. The method of claim 1, wherein, The method is used for a clothes drying apparatus, and comprises: obtaining a detection voltage and a detection current of a fan of the clothes drying apparatus in a detection state; 6. A filter contamination state processing method characterized by, ​ ​ outputting a contamination state of the filter, the contamination state being more contaminated as the ratio of the corrected power to the reference power increases, wherein the corrected power is based on a correction coefficient, the detected voltage and the detected current, and the reference power is the power of the fan in a clean state; wherein, in a case that the clothes are clothes of a first material type and the clothes drying weight exceeds a weight threshold: the corrected power is obtained based on a voltage correction coefficient and a clothes correction coefficient in the correction coefficients, and the detected voltage and the detected current, or the corrected power is obtained based on P2=U×I×K1×K2, wherein P2 represents the corrected power, U represents the detected voltage, I represents the detected current, K1 represents the clothes correction coefficient, and K2 represents the voltage correction coefficient; and / or, in a case that the clothes drying weight does not exceed the weight threshold or the clothes are clothes of a second material type: the corrected power is obtained based on a voltage correction coefficient in the correction coefficients, the detected voltage and the detected current, or the corrected power is obtained based on P2=U×I×K2, wherein P2 represents the corrected power, U represents the detected voltage, I represents the detected current, and K2 represents the voltage correction coefficient.

7. The method of claim 6, wherein: the detection state comprises a cooling stage before the end of the clothes drying, and the fan operates at a fixed speed; the correction coefficient comprises a voltage correction coefficient, the voltage correction coefficient is determined according to a second function with the detected voltage as an independent variable, or the voltage correction coefficient is determined according to the detected voltage and a rated voltage of the fan, or the voltage correction coefficient satisfies K2=U / U0, wherein K2 represents the voltage correction coefficient, U represents the detected voltage, and U0 represents the rated voltage; The correction coefficient includes a clothes correction coefficient determined according to a first function with a clothes drying weight as an independent variable, or determined according to an inner drum volume of the clothes drying apparatus, a volume-to-weight ratio of clothes of a first material type, a volume-to-weight ratio of clothes of a second material type, and the clothes drying weight, or satisfies wherein K1 represents the clothes correction coefficient, V represents the inner drum volume of the clothes drying apparatus, a1 represents the volume-to-weight ratio of clothes of the first material type, a2 represents the volume-to-weight ratio of clothes of the second material type, and m2 represents the clothes drying weight.

8. A computer-readable storage medium, characterized in that, a computer readable storage medium having computer program instructions stored therein, which when executed by one or more processors, implement the method of any one of claims 1-7.

9. An electronic device, comprising: comprising: a memory for storing computer program instructions; a processor for invoking and executing the computer program instructions to implement the method of any one of claims 1-7. 10.A clothes drying apparatus, characterized by, the clothes drying apparatus: adopts the method of any one of claims 1-7; or has the computer readable storage medium of claim 8; or has the electronic device of claim 9.

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