Confirmation method and device for air conditioner self-cleaning and intelligent air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a confirmation method for self-cleaning of an air conditioner. The confirmation method comprises the following steps: determining a first refrigeration / heating performance grade of the air conditioner; in the case that the refrigeration / heating performance indicated by the first refrigeration / heating performance grade is weaker than the refrigeration / heating performance indicated by a preset refrigeration / heating performance grade, determining a self-cleaning duration according to the difference between the first refrigeration / heating performance grade and the preset refrigeration / heating performance grade; determining a second set temperature according to a second refrigeration / heating performance grade corresponding to the last self-cleaning process and the self-cleaning duration; and confirming that the condition for entering the self-cleaning process is met in the case that the indoor temperature reaches the second set temperature. The confirmation method can reduce the extreme influence of the air conditioner on the indoor temperature during the self-cleaning process, and improves the user experience. The application further discloses a confirmation device for self-cleaning of an air conditioner and an intelligent air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent household appliances, for example to a method and device for confirming self-cleaning of an air conditioner and an intelligent air conditioner. BACKGROUND

[0002] At present, an air conditioner can have a self-cleaning function, for example, in the case where it is detected that the degree of blockage of a filter screen is greater than a preset blockage threshold, a self-cleaning process for the filter screen is started; in the case where it is detected that the degree of pollution of a heat exchanger is greater than a preset pollution degree, a self-cleaning process for the heat exchanger is started.

[0003] In the implementation process of the embodiments of the present application, it is found that at least the following problems exist in the related art:

[0004] In the self-cleaning process, the cooling / heating capacity of the indoor unit of the air conditioner for indoor air is reduced, which easily causes large fluctuations in indoor temperature, and thus leads to poor user experience.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and thus can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important constituent elements or delineate the scope of protection of these embodiments, but is intended as a prelude to the detailed description below.

[0007] The embodiments of the present application provide a method and device for confirming self-cleaning of an air conditioner and an intelligent air conditioner, so as to reduce the extreme influence of the air conditioner on indoor temperature in the self-cleaning process, and thus improve user experience.

[0008] In some embodiments, the method for confirming the self-cleaning of the air conditioner comprises: determining a first cooling / heating performance level of the air conditioner according to a first indoor temperature, a first set temperature, and a first air conditioner running time and / or a first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature; determining a self-cleaning time according to a difference between the first cooling / heating performance level and a preset cooling / heating performance level in a case where the cooling / heating performance indicated by the first cooling / heating performance level is weaker than the cooling / heating performance indicated by the preset cooling / heating performance level; determining a second set temperature according to a second cooling / heating performance level corresponding to a last self-cleaning process and the self-cleaning time; the cooling / heating performance indicated by the second cooling / heating performance level being stronger than the cooling / heating performance indicated by the preset cooling / heating performance level; the second set temperature being smaller than the first set temperature in a cooling state and the second set temperature being greater than the first set temperature in a heating state; and confirming that a condition for entering the self-cleaning process is met in a case where the indoor temperature reaches the second set temperature.

[0009] Optionally, the method for determining the first cooling / heating performance level of the air conditioner according to the first indoor temperature, the first set temperature, and the first air conditioner running time and / or the first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature comprises: obtaining a first temperature difference between the first indoor temperature and the first set temperature; taking the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as a first data set, or taking the first set temperature, the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as the first data set; and determining the first cooling / heating performance level corresponding to the first data set according to a corresponding relationship between the data set and the cooling / heating performance level.

[0010] Optionally, the corresponding relationship between the data set and the cooling / heating performance level comprises a corresponding relationship between a temperature difference, an air conditioner running time, and the cooling / heating performance level.

[0011] Optionally, the corresponding relationship between the data set and the cooling / heating performance level comprises a corresponding relationship between a temperature difference, an air conditioner running power, and the cooling / heating performance level.

[0012] Optionally, the corresponding relationship between the data set and the cooling / heating performance level comprises a corresponding relationship between a temperature difference, an air conditioner running time, and an air conditioner running power, and the cooling / heating performance level.

[0013] Optionally, the corresponding relationship between the data set and the cooling / heating performance level comprises a corresponding relationship between a set temperature, a temperature difference, an air conditioner running time, and the cooling / heating performance level.

[0014] Optionally, the correspondence between the data set and the refrigeration / heating performance level comprises a correspondence between the set temperature, the temperature difference, the air conditioner running power and the refrigeration / heating performance level.

[0015] Optionally, the correspondence between the data set and the refrigeration / heating performance level comprises a correspondence between the set temperature, the temperature difference, the air conditioner running time and the air conditioner running power and the refrigeration / heating performance level.

[0016] Optionally, the correspondence between the data set and the refrigeration / heating performance level comprises a correspondence between the set temperature, the temperature difference, the air conditioner running power and the refrigeration / heating performance level.

[0017] Optionally, the correspondence between the data set and the refrigeration / heating performance level comprises a correspondence between the set temperature, the temperature difference, the air conditioner running time and the air conditioner running power and the refrigeration / heating performance level.

[0018] Optionally, the correspondence between the data set and the refrigeration / heating performance level comprises a correspondence between the set temperature, the temperature difference, the air conditioner running power and the refrigeration / heating performance level.

[0019] Optionally, the self-cleaning duration is determined according to a difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level, including: in a case where the temperature difference is a standard temperature difference and the set temperature is a standard set temperature, obtaining a fourth air conditioner running duration and / or a fourth air conditioner running power corresponding to the first refrigeration / heating performance level, and a fourth air conditioner running duration and / or a fourth air conditioner running power corresponding to the preset refrigeration / heating performance level; obtaining a second duration difference between the fourth air conditioner running duration and a fifth air conditioner running duration, and / or obtaining a second power difference between the fourth air conditioner running power and a fifth air conditioner running power; determining the self-cleaning duration according to the second duration difference and / or the second power difference, the self-cleaning duration being positively correlated with the second duration difference and / or the second power difference.

[0020] Optionally, in a case where the air conditioner running duration and / or the air conditioner running power is a standard running duration and / or a standard running power, a second temperature difference corresponding to the first refrigeration / heating performance level and a third temperature difference corresponding to the second refrigeration / heating performance level are obtained; the self-cleaning duration is determined according to a difference between the second temperature difference and the third temperature difference; the difference between the second temperature difference and the third temperature difference is positively correlated with the self-cleaning duration.

[0021] Optionally, the second set temperature is determined according to the second refrigeration / heating performance level corresponding to a last self-cleaning process and the self-cleaning duration, including: determining an indoor temperature reduction value in the self-cleaning process according to the self-cleaning duration; the indoor temperature reduction value is positively correlated with the self-cleaning duration; obtaining a required duration for reducing the indoor temperature reduction value to a temperature before the self-cleaning process by the second refrigeration / heating performance level; the required duration is negatively correlated with a refrigeration / heating performance represented by the second refrigeration / heating performance level, and is positively correlated with the indoor temperature reduction value; determining the second set temperature according to the required duration; in a refrigeration state, the second set temperature is negatively correlated with the required duration, and in a heating state, the second set temperature is positively correlated with the required duration.

[0022] Optionally, the indoor temperature reduction value in the self-cleaning process is determined according to the self-cleaning duration, including: obtaining a fourth temperature difference between an actual indoor temperature and an outdoor temperature; the actual indoor temperature is a first indoor temperature, or the actual indoor temperature is a first set temperature, or the actual indoor temperature is an average temperature of the first indoor temperature and the first set temperature; obtaining the indoor temperature reduction value which is positively correlated with the fourth temperature difference and positively correlated with the self-cleaning duration.

[0023] Optionally, the obtaining of the required duration for reducing the indoor temperature reduction value to the temperature before the self-cleaning process at the second refrigeration / heating performance level comprises: obtaining a fourth temperature difference value between the actual indoor temperature and the outdoor temperature; the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is the average temperature of the first indoor temperature and the first set temperature; and obtaining the required duration which is negatively related to the refrigeration / heating performance represented by the second refrigeration / heating performance level, positively related to the indoor temperature reduction value, and positively related to the fourth temperature difference value.

[0024] In some embodiments, the confirmation device for air conditioner self-cleaning comprises a first determination module, a second determination module, a third determination module, and a fourth determination module.

[0025] The first determination module is configured to determine a first refrigeration / heating performance level of the air conditioner according to the first indoor temperature, the first set temperature, and the first air conditioner running duration and / or the first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature.

[0026] The second determination module is configured to determine a self-cleaning duration according to the difference between the first refrigeration / heating performance level and a preset refrigeration / heating performance level in the case that the refrigeration / heating performance represented by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance represented by the preset refrigeration / heating performance level.

[0027] The third determination module is configured to determine a second set temperature according to the corresponding second refrigeration / heating performance level after the last self-cleaning process and the self-cleaning duration; the refrigeration / heating performance represented by the second refrigeration / heating performance level is stronger than the refrigeration / heating performance represented by the preset refrigeration / heating performance level; the second set temperature is less than the first set temperature in the refrigeration state, and the second set temperature is greater than the first set temperature in the heating state.

[0028] The fourth determination module is configured to confirm that the condition for entering the self-cleaning process is met in the case that the indoor temperature reaches the second set temperature.

[0029] In some embodiments, the confirmation device for air conditioner self-cleaning comprises a processor and a memory storing program instructions, and the processor is configured to execute the air conditioner self-cleaning confirmation method provided in the foregoing embodiments when executing the program instructions.

[0030] In some embodiments, the intelligent air conditioner comprises the confirmation device for air conditioner self-cleaning provided in the foregoing embodiments.

[0031] The confirmation method, device, and intelligent air conditioner for air conditioner self-cleaning provided in the embodiments of the present application can achieve the following technical effects:

[0032] The first refrigeration / heat production performance level of the air conditioner is determined, and the dust accumulated in the filter screen or the heat exchanger of the air conditioner reduces the refrigeration / heat production performance of the air conditioner. The difference between the first refrigeration / heat production performance level and the preset refrigeration / heat production performance level is used to determine the self-cleaning time of the air conditioner. The air conditioner can be self-cleaned on demand to maintain the refrigeration / heat production performance of the air conditioner.

[0033] The second refrigeration / heat production performance level can indicate the refrigeration / heat production performance of the air conditioner after self-cleaning to a certain extent. The second set temperature is determined based on the second refrigeration / heat production performance level and the self-cleaning time. In the refrigeration state, the second set temperature is less than the first set temperature, and the process of the air conditioner reaching the second set temperature is the process of the air conditioner continuing to reduce the indoor temperature. In the heating state, the second set temperature is greater than the first set temperature, and the process of the air conditioner reaching the second set temperature is the process of the air conditioner continuing to increase the indoor temperature.

[0034] The indoor temperature is thus lowered / increased in advance to compensate for the fluctuation of the indoor temperature during the self-cleaning process.

[0035] In addition, in the process of determining the self-cleaning time of the air conditioner based on the difference between the first refrigeration / heat production performance level and the preset refrigeration / heat production performance level, the self-cleaning is on demand. Therefore, the self-cleaning time is not too long, and the second set temperature determined based on the self-cleaning time is not too low in the refrigeration state and not too high in the heating state. That is, the process of the air conditioner reaching the second set temperature also causes the fluctuation of the indoor temperature. Since the first set temperature is not too low in the refrigeration state and the second set temperature is not too high in the heating state, the fluctuation of the indoor temperature caused by the second set temperature itself is not too large.

[0036] In this way, the fluctuation of the indoor temperature before the self-cleaning process is not too large, and the fluctuation of the indoor temperature during the self-cleaning process is also not too large. Therefore, the extreme influence of the air conditioner on the indoor temperature during the self-cleaning process can be reduced, and the user experience is improved.

[0037] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0038] One or more embodiments are exemplified by the corresponding drawings, which do not constitute limitations on the embodiments, and elements with the same reference numerals in the drawings are considered to be similar elements, and wherein:

[0039] Figure 1is a flowchart of a method for confirming self-cleaning of an air conditioner provided by an embodiment of the present application;

[0040] Figure 2 is a flowchart of a method for confirming self-cleaning of an air conditioner provided by an embodiment of the present application;

[0041] Figure 3 is a flowchart of a method for confirming self-cleaning of an air conditioner provided by an embodiment of the present application;

[0042] Figure 4 is a schematic diagram of a device for confirming self-cleaning of an air conditioner provided by an embodiment of the present application;

[0043] Figure 5 is a schematic diagram of a device for confirming self-cleaning of an air conditioner provided by an embodiment of the present application;

[0044] Figure 6 is a schematic diagram of a smart air conditioner provided by an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present application, the implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are for reference only and do not limit the embodiments of the present application. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0046] The terms "first", "second", and the like in the specification and claims of the embodiments of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0047] Unless otherwise specified, the term "a plurality of" means two or more.

[0048] In the embodiments of the present application, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0049] The term "and / or" is a description of the relationship between the objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, three relationships.

[0050] In a state where the air conditioner is in a refrigeration operation, the term "refrigeration / heating performance" or "refrigeration / heating performance level" represents the refrigeration performance or refrigeration performance level of the air conditioner; in a state where the air conditioner is in a heating operation, the term "refrigeration / heating performance" or "refrigeration / heating performance level" represents the heating performance or heating performance level of the air conditioner.

[0051] In the embodiments of the present application, the self-cleaning duration determined based on the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level has the significance of enabling the first refrigeration / heating performance level to reach the preset refrigeration / heating performance level, and the on-demand self-cleaning is realized. Furthermore, the second set temperature is determined based on the self-cleaning duration, and the second set temperature has the characteristics that it is not too small in the refrigeration state and not too large in the heating state. The indoor temperature is lowered / rised in advance before the self-cleaning process based on the second set temperature, the extreme change of the indoor temperature caused by the self-cleaning process is reduced, and the use experience of the user is improved.

[0052] Figure 1 is a flowchart of a method for confirming air conditioner self-cleaning provided by the embodiments of the present application. The method for confirming air conditioner self-cleaning can be executed in a controller of the air conditioner, can be executed in a mobile terminal such as a remote controller, and can also be executed in a server in a smart home scenario.

[0053] In combination with Figure 1 As shown in the figure, the method for confirming air conditioner self-cleaning comprises the following steps.

[0054] S101, determining a first refrigeration / heating performance level of the air conditioner according to a first indoor temperature, a first set temperature, and a first air conditioner running duration and / or a first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature.

[0055] For example, at a first time, the indoor temperature is a first indoor temperature, and at a second time, it is determined that the indoor temperature reaches a first set temperature. The duration between the first time and the second time is the first air conditioner running duration.

[0056] During the first time to the second time, the average running power of the air conditioner is the first air conditioner running power, or during the first time to the second time, the total running power (total power consumption) of the air conditioner is the first air conditioner running power.

[0057] Wherein, it is determined that the indoor temperature reaches the first set temperature, which means that the absolute value of the temperature difference between the indoor temperature and the first set temperature is less than or equal to a temperature threshold. The temperature threshold can be set by experience by those skilled in the art, for example, the temperature threshold can be 1℃ or 2℃.

[0058] S102, in a case where the refrigeration / heating performance indicated by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance indicated by the preset refrigeration / heating performance level, determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level.

[0059] In this step, the self-cleaning duration is determined according to the difference between the refrigeration / heating performance indicated by the first refrigeration / heating performance level and the refrigeration / heating performance indicated by the preset refrigeration / heating performance level.

[0060] In different specific forms of the refrigeration / heating performance, the way of determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level is also different. The following exemplary lists one way of determining the self-cleaning duration, and other ways of determining are exemplary described in other embodiments.

[0061] In the process of dividing the refrigeration / heating performance levels, the greater the value of the refrigeration / heating performance level is, the higher the refrigeration / heating performance is, and the smaller the value of the refrigeration / heating performance level is, the lower the refrigeration / heating performance is; or, the smaller the value of the refrigeration / heating performance level is, the lower the refrigeration / heating performance is, and the greater the value of the refrigeration / heating performance level is, the higher the refrigeration / heating performance is.

[0062] For example, a first level difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level can be obtained; the self-cleaning duration is determined according to the first level difference, and the self-cleaning duration is positively correlated with the first level difference.

[0063] The specific number of the refrigeration / heating performance levels can be set by those skilled in the art according to actual conditions, the greater the specific number of the refrigeration / heating performance levels is, the greater the first level difference corresponding to the same self-cleaning duration is, and the smaller the specific number of the refrigeration / heating performance levels is, the smaller the first level difference corresponding to the same self-cleaning duration is.

[0064] S103, determining a second set temperature according to the second refrigeration / heating performance level corresponding to the last self-cleaning process and the self-cleaning duration.

[0065] The refrigeration / heating performance indicated by the second refrigeration / heating performance level is stronger than the refrigeration / heating performance indicated by the preset refrigeration / heating performance level.

[0066] The second refrigeration / heating performance level can be a preset value, or the second refrigeration / heating performance level can be the refrigeration / heating performance level that can be reached when the air conditioner is first operated after the last self-cleaning process.

[0067] In the cooling state, the second set temperature is less than the first set temperature; in the heating state, the second set temperature is greater than the first set temperature.

[0068] Optionally, the second set temperature is determined according to the second cooling / heating performance level corresponding to the last self-cleaning process and the self-cleaning duration, including:

[0069] The indoor temperature reduction value in the self-cleaning process is determined according to the self-cleaning duration; the indoor temperature reduction value is positively correlated with the self-cleaning duration;

[0070] The requirement duration for reducing the indoor temperature reduction value to the temperature before the self-cleaning process by the second cooling / heating performance level is obtained; the requirement duration is negatively correlated with the cooling / heating performance represented by the second cooling / heating performance level, and is positively correlated with the indoor temperature reduction value;

[0071] The second set temperature is determined according to the requirement duration; in the cooling state, the second set temperature is negatively correlated with the requirement duration, and in the heating state, the second set temperature is positively correlated with the requirement duration.

[0072] Further, the indoor temperature reduction value in the self-cleaning process is determined according to the self-cleaning duration, including: obtaining a fourth temperature difference value between the actual indoor temperature and the outdoor temperature; the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is the average temperature of the first indoor temperature and the first set temperature; obtaining the indoor temperature reduction value positively correlated with the fourth temperature difference value and positively correlated with the self-cleaning duration. In the process of determining the indoor temperature reduction value, by considering the fourth temperature difference value between the actual indoor temperature and the outdoor temperature, a more accurate indoor temperature reduction value can be obtained.

[0073] Further, the requirement duration for reducing the indoor temperature reduction value to the temperature before the self-cleaning process by the second cooling / heating performance level is obtained, including: obtaining a fourth temperature difference value between the actual indoor temperature and the outdoor temperature; the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is the average temperature of the first indoor temperature and the first set temperature; obtaining the requirement duration negatively correlated with the cooling / heating performance represented by the second cooling / heating performance level, positively correlated with the indoor temperature reduction value, and positively correlated with the fourth temperature difference value. In the process of determining the requirement duration, by considering the fourth temperature difference value between the actual indoor temperature and the outdoor temperature, a more accurate requirement duration can be obtained.

[0074] S104, in the case that the indoor temperature reaches the second set temperature, it is confirmed that the condition for entering the self-cleaning process is met.

[0075] The indoor temperature reaching the second set temperature refers to that an absolute value of a temperature difference between the indoor temperature and the second set temperature is less than or equal to a temperature threshold. The temperature threshold can be set by experience, for example, the temperature threshold can be 1°C or 2°C.

[0076] The first refrigeration / heating performance grade of the air conditioner is determined. After dust accumulates in the filter screen or the heat exchanger of the air conditioner, the refrigeration / heating performance of the air conditioner is reduced. The difference between the first refrigeration / heating performance grade and the preset refrigeration / heating performance grade is used to determine the self-cleaning duration of the air conditioner. The self-cleaning is performed on demand to maintain the refrigeration / heating performance of the air conditioner.

[0077] The second refrigeration / heating performance grade can indicate the refrigeration / heating performance that the air conditioner can achieve after self-cleaning to a certain extent. The second set temperature is determined based on the second refrigeration / heating performance grade and the self-cleaning duration. In the refrigeration state, the second set temperature is less than the first set temperature. The process of the air conditioner reaching the second set temperature is a process of the air conditioner continuously reducing the indoor temperature. In the heating state, the second set temperature is greater than the first set temperature. The process of the air conditioner reaching the second set temperature is a process of the air conditioner continuously increasing the indoor temperature.

[0078] The indoor temperature is thus lowered / increased in advance to compensate for the fluctuation of the indoor temperature during the self-cleaning process.

[0079] In addition, in the process of determining the self-cleaning duration of the air conditioner based on the difference between the first refrigeration / heating performance grade and the preset refrigeration / heating performance grade, the self-cleaning is performed on demand. Therefore, the self-cleaning duration is not too long. Based on the self-cleaning duration, the second set temperature determined in the refrigeration state is not too low, and the second set temperature determined in the heating state is not too high. That is, the process of the air conditioner reaching the second set temperature also causes the fluctuation of the indoor temperature. Since the first set temperature is not too low in the refrigeration state and the second set temperature is not too high in the heating state, the fluctuation of the indoor temperature caused by the second set temperature itself is not too large.

[0080] In this way, the fluctuation of the indoor temperature before the self-cleaning process is not too large, and the fluctuation of the indoor temperature during the self-cleaning process is also not too large. Therefore, the extreme influence of the air conditioner on the indoor temperature during the self-cleaning process can be reduced, and the user experience is improved.

[0081] Further, in the case that the second refrigeration / heating performance grade is the refrigeration / heating performance grade that the air conditioner can achieve when the air conditioner is first operated after the last self-cleaning process, the self-cleaning duration can be more accurately determined, and a more accurate second set temperature can be determined. Finally, the fluctuation of the temperature before the self-cleaning process can be further reduced.

[0082] The air conditioner filter screen and the heat exchanger have limited self-cleaning ability. After self-cleaning, the ventilation ability of the filter screen and the heat exchanger cannot reach the initial installation state, and with the multiple performance of the self-cleaning process, the ventilation ability of the filter screen and the heat exchanger tends to gradually decrease. The first time the air conditioner is run after the above self-cleaning process, the cooling / heating performance level that can be reached is taken as the second cooling / heating performance level. With the multiple performance of the self-cleaning process, the cooling / heating performance represented by the second cooling / heating performance level gradually decreases. In the case where the self-cleaning time does not change, the second set temperature in the cooling state will gradually increase, and the second set temperature in the heating state will gradually decrease. Thus, before the self-cleaning process, the temperature fluctuation caused by the air conditioner adjusting the indoor temperature to the second set temperature will gradually decrease. Finally, without affecting the self-cleaning effect, the temperature fluctuation before the self-cleaning process is reduced.

[0083] In a specific scenario, when the filter screen is self-cleaning, the indoor fan speed is zero or extremely low to avoid dust in the filter screen being blown into the room.

[0084] When the heat exchanger is self-cleaning, the frosting-defrosting method is usually used to realize the self-cleaning of the heat exchanger. In this process, to reduce the influence of the frosting-defrosting process of the indoor heat exchanger on the indoor temperature, the indoor fan speed is also zero or extremely low.

[0085] That is, the self-cleaning process of the filter screen and the self-cleaning process of the heat exchanger will both cause changes in the indoor temperature. The air conditioner self-cleaning confirmation method provided by the embodiments of the present application can be applied to the self-cleaning process of the filter screen and the self-cleaning process of the heat exchanger.

[0086] Figure 2 is a flowchart of an air conditioner self-cleaning confirmation method provided by the embodiments of the present application. The air conditioner self-cleaning confirmation method can be executed in the controller of the air conditioner, can be executed in the mobile terminal such as a remote controller, and can also be executed in the server in the smart home scenario.

[0087] In combination with Figure 2 As shown in the figure, the air conditioner self-cleaning confirmation method comprises the following steps.

[0088] S201, obtaining a first temperature difference between a first indoor temperature and a first set temperature.

[0089] S202, taking the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as a first data set.

[0090] S203, determining a first refrigeration / heating performance level corresponding to the first data set according to a correspondence between data sets and refrigeration / heating performance levels.

[0091] In the embodiments of the present application, the refrigeration / heating performance level can represent the length of air conditioner operation and / or the power of air conditioner operation required to reduce / increase the temperature of a unit volume of indoor space by a unit temperature.

[0092] Alternatively, the refrigeration / heating performance level can represent the temperature reduction or temperature increase of a unit volume of indoor space under a unit length of air conditioner operation and / or a unit power of air conditioner operation.

[0093] The correspondence between data sets and refrigeration / heating performance levels can be obtained by experiments by those skilled in the art.

[0094] The correspondence between data sets and refrigeration / heating performance levels can be stored in a one-to-one correspondence data table, and after obtaining the first data set, the first refrigeration / heating performance level corresponding to the first data set can be obtained by searching the one-to-one correspondence data table for the first data set.

[0095] Alternatively, a fitting formula for calculating the refrigeration / heating performance of the data set can be determined by data fitting, and after obtaining the first data set, the first refrigeration / heating performance level corresponding to the first data set can be obtained by substituting the first data set into the fitting formula.

[0096] Optionally, the correspondence between data sets and refrigeration / heating performance levels includes the correspondence between the temperature difference, the length of air conditioner operation, and the refrigeration / heating performance level.

[0097] Alternatively, the correspondence between data sets and refrigeration / heating performance levels can include the correspondence between the temperature difference, the power of air conditioner operation, and the refrigeration / heating performance level.

[0098] Alternatively, the correspondence between data sets and refrigeration / heating performance levels can include the correspondence between the temperature difference, the length of air conditioner operation, and the power of air conditioner operation, and the refrigeration / heating performance level.

[0099] The greater the temperature difference, the higher the refrigeration / heating performance represented by the refrigeration / heating performance level; the shorter the length of air conditioner operation, the higher the refrigeration / heating performance represented by the refrigeration / heating performance level; and the smaller the power of air conditioner operation, the higher the refrigeration / heating performance represented by the refrigeration / heating performance level.

[0100] In the above embodiments, the volume / area of the room is ignored in the process of determining the first refrigeration / heating performance level.

[0101] In the specific application process, the volume / area of the room where the air conditioner is located can be regarded as a unit volume / unit area, or 1 cubic meter / square meter can be regarded as a unit volume / unit area, or a value greater than 1 cubic meter / square meter, such as 5 cubic meters / square meter, 10 cubic meters / square meter, etc. can be regarded as a unit volume / unit area, which will not be described one by one here.

[0102] S204, in the case that the refrigeration / heating performance represented by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance represented by the preset refrigeration / heating performance level, determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level.

[0103] In this step, the self-cleaning duration is determined according to the difference between the refrigeration / heating performance represented by the first refrigeration / heating performance level and the refrigeration / heating performance represented by the preset refrigeration / heating performance level.

[0104] Wherein, the specific representation of the refrigeration / heating performance is different, then the way of determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level is also different.

[0105] In the case that the refrigeration / heating performance is directly represented by the refrigeration / heating performance level, determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level can include: obtaining a first level difference value of the first refrigeration / heating performance level and the preset refrigeration / heating performance level; determining the self-cleaning duration according to the first level difference value, and the self-cleaning duration is positively correlated with the first level difference value.

[0106] In the case that the refrigeration / heating performance is represented by the air conditioner running time and / or air conditioner running power, determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level can include: in the case that the temperature difference value is a standard temperature difference value, obtaining a second air conditioner running time and / or a second air conditioner running power corresponding to the first refrigeration / heating performance level, and a third air conditioner running time and / or a third air conditioner running power corresponding to the preset refrigeration / heating performance level; obtaining a first time difference value of the second air conditioner running time and the third air conditioner running time, and / or obtaining a first power difference value of the second air conditioner running power and the third air conditioner running power; determining the self-cleaning duration according to the first time difference value and / or the first power difference value, and the self-cleaning duration is positively correlated with the first time difference value and / or the first power difference value.

[0107] In the case of expressing the refrigeration / heating performance by a temperature reduction value or a temperature increase value, determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level can include: obtaining a second temperature difference value corresponding to the first refrigeration / heating performance level and a third temperature difference value corresponding to the second refrigeration / heating performance level in the case that the air conditioner running duration and / or the air conditioner running power are standard running duration and / or standard running power; and determining the self-cleaning duration according to the difference between the second temperature difference value and the third temperature difference value; wherein the difference between the second temperature difference value and the third temperature difference value is positively correlated with the self-cleaning duration.

[0108] S205, determining the second set temperature according to the second refrigeration / heating performance level corresponding to the last self-cleaning process and the self-cleaning duration.

[0109] The refrigeration / heating performance expressed by the second refrigeration / heating performance level is stronger than the refrigeration / heating performance expressed by the preset refrigeration / heating performance level; in the refrigeration state, the second set temperature is less than the first set temperature, and in the heating state, the second set temperature is greater than the first set temperature.

[0110] S206, confirming that the condition of entering the self-cleaning process is met in the case that the indoor temperature reaches the second set temperature.

[0111] Figure 3 is a flowchart of a method for confirming self-cleaning of an air conditioner provided in the embodiments of the present application. The method for confirming self-cleaning of an air conditioner can be executed in a controller of the air conditioner, can be executed in a mobile terminal such as a remote controller, and can also be executed in a server in a smart home scenario.

[0112] In combination with Figure 3 As shown in the figure, the method for confirming self-cleaning of an air conditioner includes:

[0113] S301, obtaining a first temperature difference value between a first indoor temperature and a first set temperature.

[0114] S302, taking the first set temperature, the first temperature difference value, a first air conditioner running duration and / or a first air conditioner running power as a first data group.

[0115] S303, determining a first refrigeration / heating performance level corresponding to the first data group according to the correspondence between the data group and the refrigeration / heating performance level.

[0116] In the embodiments of the present application, the refrigeration / heating performance level can represent the air conditioner running duration and / or the air conditioner running power required to reduce / increase the temperature of a unit volume of indoor space by a unit temperature.

[0117] Alternatively, the cooling / heating performance level can represent the temperature reduction or temperature increase of a unit volume of indoor space per unit running time and / or per unit running power of the air conditioner.

[0118] The correspondence between the data set and the cooling / heating performance level can be obtained by the skilled person in the art through experiments.

[0119] The correspondence between the data set and the cooling / heating performance level can be stored in a one-to-one correspondence data table. After obtaining the first data set, the first cooling / heating performance level corresponding to the first data set can be obtained by searching the one-to-one correspondence data table for the first data set.

[0120] Alternatively, a fitting formula for calculating the cooling / heating performance from the data set can be determined by data fitting. After obtaining the first data set, the first cooling / heating performance level corresponding to the first data set can be obtained by substituting the first data set into the fitting formula.

[0121] Alternatively, the correspondence between the data set and the cooling / heating performance level can include the correspondence between the set temperature, the temperature difference, the air conditioner running time, and the cooling / heating performance level.

[0122] Alternatively, the correspondence between the data set and the cooling / heating performance level can include the correspondence between the set temperature, the temperature difference, the air conditioner running power, and the cooling / heating performance level.

[0123] Alternatively, the correspondence between the data set and the cooling / heating performance level can include the correspondence between the set temperature, the temperature difference, the air conditioner running time, and the air conditioner running power, and the cooling / heating performance level.

[0124] The greater the temperature difference, the higher the cooling / heating performance represented by the cooling / heating performance level. The shorter the air conditioner running time, the higher the cooling / heating performance represented by the cooling / heating performance level. The smaller the air conditioner running power, the higher the cooling / heating performance represented by the cooling / heating performance level. In the cooling process, the lower the set temperature, the higher the cooling performance represented by the cooling / heating performance level. In the heating process, the higher the set temperature, the higher the cooling performance represented by the cooling / heating performance level.

[0125] In the above embodiments, the room volume / area is ignored in the process of determining the first cooling / heating performance level.

[0126] In the specific application process, the volume / area of the room where the air conditioner is located can be regarded as a unit volume / unit area, or 1 cubic meter / square meter can be regarded as a unit volume / unit area, or a value greater than 1 cubic meter / square meter, such as 5 cubic meters / square meter, 10 cubic meters / square meter, etc. can be regarded as a unit volume / unit area, which will not be repeated here.

[0127] S304, in the case that the refrigeration / heating performance represented by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance represented by the preset refrigeration / heating performance level, determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level.

[0128] In this step, the self-cleaning duration is determined according to the difference between the refrigeration / heating performance represented by the first refrigeration / heating performance level and the refrigeration / heating performance represented by the preset refrigeration / heating performance level.

[0129] Wherein, the specific representation of the refrigeration / heating performance is different, then the way of determining the self-cleaning duration according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level is also different.

[0130] In the case that the refrigeration / heating performance is directly represented by the refrigeration / heating performance level, the self-cleaning duration is determined according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level, including: obtaining a first level difference value of the first refrigeration / heating performance level and the preset refrigeration / heating performance level; determining the self-cleaning duration according to the first level difference value, the self-cleaning duration is positively correlated with the first level difference value.

[0131] In the case that the refrigeration / heating performance is represented by the air conditioner running time and / or air conditioner running power, the self-cleaning duration is determined according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level, which can include: in the case that the temperature difference value is a standard temperature difference value and the set temperature is a standard set temperature, obtaining the fourth air conditioner running time and / or the fourth air conditioner running power corresponding to the first refrigeration / heating performance level, and the fourth air conditioner running time and / or the fourth air conditioner running power corresponding to the preset refrigeration / heating performance level; obtaining a second time difference value of the fourth air conditioner running time and the fifth air conditioner running time, and / or obtaining a second power difference value of the fourth air conditioner running power and the fifth air conditioner running power; determining the self-cleaning duration according to the second time difference value and / or the second power difference value, the self-cleaning duration is positively correlated with the second time difference value and / or the second power difference value.

[0132] S305, determining a second set temperature according to the second refrigeration / heating performance level corresponding to the last self-cleaning process and the self-cleaning duration.

[0133] The refrigeration / heating performance indicated by the second refrigeration / heating performance level is stronger than the refrigeration / heating performance indicated by the preset refrigeration / heating performance level; in the refrigeration state, the second set temperature is smaller than the first set temperature, and in the heating state, the second set temperature is greater than the first set temperature.

[0134] S306, in the case that the indoor temperature reaches the second set temperature, it is confirmed that the condition for entering the self-cleaning process is met.

[0135] In some application scenarios, after it is confirmed that the condition for entering the self-cleaning process is met, the air conditioner is controlled to enter the self-cleaning process.

[0136] The self-cleaning process of the air conditioner is a self-cleaning process of the filter screen, or a self-cleaning process of the heat exchanger, or a self-cleaning process of the filter screen and the heat exchanger.

[0137] When the filter screen needs to be cleaned, the self-cleaning process of the filter screen is started, and when the heat exchanger needs to be cleaned, the self-cleaning process of the heat exchanger is started.

[0138] The specific manner of the self-cleaning process of the filter screen and the specific manner of the self-cleaning process of the heat exchanger can be set by the person skilled in the art according to experience, which will not be described here.

[0139] Further, the confirmation method for the self-cleaning of the air conditioner further comprises: after exiting the self-cleaning process, determining a third refrigeration / heating performance level of the air conditioner according to the second indoor temperature, a third set temperature, and a sixth air conditioner running time length and / or a sixth air conditioner running power required for the second indoor temperature to reach the third set temperature; in the case that the first refrigeration / heating performance level and the third refrigeration / heating performance level can indicate the degree of improvement of the self-cleaning process performed on the refrigeration / heating performance of the air conditioner, and the preset degree of improvement is met, determining that the self-cleaning process is effective, and making the air conditioner continue to run.

[0140] For example, the time when the self-cleaning process is exited is a third time, at which the indoor temperature is the second indoor temperature, at a fourth time, it is determined that the indoor temperature reaches the third set temperature, and the time length between the third time and the fourth time is the sixth air conditioner running time length.

[0141] The average running power of the air conditioner between the third time and the fourth time is the sixth air conditioner running power, or the total running power (total consumed power) of the air conditioner between the third time and the fourth time is the sixth air conditioner running power.

[0142] The determination that the indoor temperature reaches the third set temperature means that the absolute value of the temperature difference between the indoor temperature and the third set temperature is less than or equal to a temperature threshold, which can be set by the person skilled in the art according to experience, for example, the temperature threshold can be 1℃ or 2℃.

[0143] The third set temperature can be equal to or different from the first set temperature. The first set temperature and the third set temperature can be set according to actual requirements by the person skilled in the art or the user.

[0144] The preset improvement degree is used to represent that the self-cleaning process can improve the refrigeration / heating performance of the air conditioner, that is, the self-cleaning means taken is effective for the purpose of improving the refrigeration / heating performance of the air conditioner.

[0145] The first refrigeration / heating performance grade of the air conditioner is determined, and the first refrigeration / heating performance is taken as a judgment condition of the first step of the self-cleaning process of the air conditioner. Due to the overall blocking and dirty degree of the filter screen or the overall pollution degree of the heat exchanger, the refrigeration / heating performance of the air conditioner will be reduced, and therefore the first refrigeration / heating performance can represent the overall blocking and dirty degree of the filter screen or the overall pollution degree of the heat exchanger to a certain extent. Then, the filter screen or the heat exchanger not meeting the manual cleaning condition is taken as a judgment condition of the second step. The judgment condition of the second step can represent that although the overall blocking and dirty degree of the filter screen or the overall pollution degree of the heat exchanger is high, there is no excessive pollution or excessive blocking and dirty, and it still belongs to the self-cleaning ability of the air conditioner that can be handled. In this case, it is determined that the self-cleaning process needs to be started. The air conditioner can enter the self-cleaning process in any way, such as manual selection and confirmation by the user to make the air conditioner enter the self-cleaning process, or the air conditioner automatically enters the self-cleaning process.

[0146] In the exit of the self-cleaning process, the refrigeration / heating performance of the air conditioner is determined again, that is, the third refrigeration / heating performance grade. Because many factors such as indoor humidity, indoor air flow, outdoor environment temperature, sealing degree of the room, refrigerant amount of the air conditioning system, and self performance of the compressor and the fan will all affect the refrigeration / heating performance, there will be a certain error in representing the overall blocking and dirty degree of the filter screen or the overall blocking and dirty degree of the heat exchanger by the first refrigeration / heating performance grade determined in the foregoing steps.

[0147] The first refrigeration / heating performance grade and the third refrigeration / heating performance grade can represent the improvement degree of the self-cleaning process performed on the refrigeration / heating performance of the air conditioner, and meet the preset improvement degree. The overall blocking and dirty degree of the filter screen or the overall pollution degree of the heat exchanger represented by the first refrigeration / heating performance grade is accurate, and it is further determined that the self-cleaning process is effective, and the air conditioner continues to operate normally.

[0148] In the foregoing manner, the embodiments of the present application take improving the refrigeration / heating performance of the air conditioner as a starting point, more accurately reflect the overall blocking and dirty degree of the filter screen or the overall pollution degree of the heat exchanger by the first refrigeration / heating performance grade, and make the air conditioner enter the self-cleaning process in time, so as to achieve the effect of improving the refrigeration / heating performance of the air conditioner.

[0149] In the embodiment of the present application, the air conditioner continues to run refers to that the air conditioner continues to execute according to the default control method and continues to execute the confirmation method for air conditioner self-cleaning provided by the embodiment of the present application.

[0150] In the case that the first refrigeration / heating performance level and the third refrigeration / heating performance level cannot represent the improvement degree of the self-cleaning process executed on the refrigeration / heating performance of the air conditioner, and the preset improvement degree is met, it is determined that the self-cleaning process is invalid. The self-cleaning duration in the next self-cleaning process can be increased, or the user is prompted to manually clean or replace the filter screen, or the heat exchanger is manually cleaned.

[0151] The determination process of the third refrigeration / heating performance level is exemplarily described below.

[0152] Optionally, the third refrigeration / heating performance level of the air conditioner is determined according to the second indoor temperature, the third set temperature, and the sixth air conditioner running duration and / or the sixth air conditioner running power required for the second indoor temperature to reach the third set temperature, and includes: obtaining a fourth temperature difference value between the second indoor temperature and the third set temperature; taking the fourth temperature difference value, the sixth air conditioner running duration and / or the sixth air conditioner running power as a second data set; and determining the third refrigeration / heating performance level corresponding to the second data set according to the correspondence between the data set and the refrigeration / heating performance level.

[0153] The correspondence between the data set and the refrigeration / heating performance level can be stored in a one-to-one correspondence data table, and after the second data set is obtained, the third refrigeration / heating performance level corresponding to the second data set can be obtained by searching the second data set in the one-to-one correspondence data table.

[0154] Alternatively, a fitting formula for calculating the data set and the refrigeration / heating performance can be determined by data fitting, and after the second data set is obtained, the third refrigeration / heating performance level corresponding to the second data set can be obtained by substituting the second data set into the fitting formula.

[0155] Optionally, the correspondence between the data set and the refrigeration / heating performance level includes the correspondence between the temperature difference value, the air conditioner running duration and the refrigeration / heating performance level.

[0156] Alternatively, the correspondence between the data set and the refrigeration / heating performance level can include the correspondence between the temperature difference value, the air conditioner running power and the refrigeration / heating performance level.

[0157] Alternatively, the correspondence between the data set and the refrigeration / heating performance level can include the correspondence between the temperature difference value, the air conditioner running duration and the air conditioner running power and the refrigeration / heating performance level.

[0158] Alternatively, the correspondence between the data set and the cooling / heating performance level can include a correspondence between the set temperature, the temperature difference, the air conditioner running time, and the cooling / heating performance level.

[0159] Alternatively, the correspondence between the data set and the cooling / heating performance level can include a correspondence between the set temperature, the temperature difference, the air conditioner running power, and the cooling / heating performance level.

[0160] Alternatively, the correspondence between the data set and the cooling / heating performance level can include a correspondence between the set temperature, the temperature difference, the air conditioner running time, and the air conditioner running power, and the cooling / heating performance level.

[0161] Wherein, the greater the temperature difference, the higher the cooling / heating performance represented by the cooling / heating performance level; the shorter the air conditioner running time, the higher the cooling / heating performance represented by the cooling / heating performance level; the smaller the air conditioner running power, the higher the cooling / heating performance represented by the cooling / heating performance level; in the cooling process, the lower the set temperature, the higher the cooling performance represented by the cooling / heating performance level; in the heating process, the higher the set temperature, the higher the cooling performance represented by the cooling / heating performance level.

[0162] In the above embodiment, the room volume / area is ignored in determining the third cooling / heating performance level.

[0163] In specific applications, the volume / area of the room where the air conditioner is located can be considered as a unit volume / unit area, or 1 cubic meter / square meter can be considered as a unit volume / unit area, or a value greater than 1 cubic meter / square meter, such as 5 cubic meters / square meters, 10 cubic meters / square meters, etc. can be considered as a unit volume / unit area, which will not be repeated here.

[0164] The following is an exemplary description of the degree of improvement of the self-cleaning process on the cooling / heating performance of the air conditioner to meet the preset improvement degree.

[0165] Alternatively, the first cooling / heating performance level and the third cooling / heating performance level can represent the degree of improvement of the self-cleaning process on the cooling / heating performance of the air conditioner to meet the preset improvement degree, including: obtaining a level difference between the first cooling / heating performance level and the third cooling / heating performance level; in the case that the level difference is greater than or equal to a first difference threshold, it is determined that the preset improvement degree is met; wherein the greater the number of performance level divisions, the greater the first difference threshold.

[0166] In the process of dividing the refrigeration / heating performance levels, the greater the numerical value of the refrigeration / heating performance level, the higher the refrigeration / heating performance, and the smaller the numerical value of the refrigeration / heating performance level, the lower the refrigeration / heating performance; or, the smaller the numerical value of the refrigeration / heating performance level, the lower the refrigeration / heating performance, and the greater the numerical value of the refrigeration / heating performance level, the higher the refrigeration / heating performance.

[0167] Alternatively, the first refrigeration / heating performance level and the third refrigeration / heating performance level can represent the degree of improvement of the self-cleaning process that has been started on the refrigeration / heating performance of the air conditioner, and meeting the preset degree of improvement can include: obtaining a fifth temperature difference value corresponding to the first refrigeration / heating performance level and a sixth temperature difference value corresponding to the third refrigeration / heating performance level when the running time and / or the running power of the air conditioner is the standard running time and / or the standard running power; and determining that the preset degree of improvement is met when the difference between the fifth temperature difference value and the sixth temperature difference value is greater than or equal to the second difference threshold.

[0168] The fifth temperature difference value and the sixth temperature difference value can each be a temperature reduction value; or the fifth temperature difference value and the sixth temperature difference value can each be a temperature increase value.

[0169] In the above embodiments, the standard running time is a preset value, for example, the standard running time can be 20 min, 30 min, or 40 min; or the above standard running time is an average value of the time required for the indoor temperature to reach the set temperature after the air conditioner is started by the current user multiple times; or the above standard running time can be an average value of the time required for the indoor temperature to reach the set temperature after the air conditioner is started by a plurality of different users using the same model of air conditioner. A person skilled in the art can determine a suitable standard running time according to the actual situation.

[0170] In the above embodiments, the standard running power is a preset value, for example, the standard running power can be the rated running power of the air conditioner; or the above standard running power is the average running power of the air conditioner during the process of the indoor temperature reaching the set temperature after the air conditioner is started by the current user multiple times; or the above standard running power can be the average running power of the air conditioner during the process of the indoor temperature reaching the set temperature after the air conditioner is started by a plurality of different users using the same model of air conditioner. A person skilled in the art can determine a suitable standard running power according to the actual situation.

[0171] Alternatively, the first and third refrigeration / heating performance levels can represent the degree of improvement of the air conditioner's refrigeration / heating performance by the started self-cleaning process, and the preset degree of improvement can be determined by: obtaining a seventh air conditioner running time and / or a seventh air conditioner running power corresponding to the first refrigeration / heating performance level, and an eighth air conditioner running time and / or an eighth air conditioner running power corresponding to the third refrigeration / heating performance level, when the temperature difference is a standard temperature difference; and determining that the preset degree of improvement is met when a second time difference between the seventh and eighth air conditioner running times is greater than or equal to a first time threshold, and / or a second power difference between the seventh and eighth air conditioner running powers is greater than or equal to a first power threshold. This can facilitate more accurate determination of whether the preset degree of improvement is met.

[0172] In the above embodiments, the standard temperature difference can be a preset value, for example, the standard temperature difference can be 5℃, 10℃, or 15℃; or the standard temperature difference can be a temperature difference between a local average temperature and a user average set temperature; or the standard temperature difference can be a temperature difference between a current season average temperature and a user average set temperature. A suitable standard temperature difference can be determined by a person skilled in the art according to actual conditions.

[0173] Alternatively, the first and third refrigeration / heating performance levels can represent the degree of improvement of the air conditioner's refrigeration / heating performance by the started self-cleaning process, and the preset degree of improvement can be determined by: obtaining a ninth air conditioner running time and / or a ninth air conditioner running power corresponding to the first refrigeration / heating performance level, and a tenth air conditioner running time and / or a tenth air conditioner running power corresponding to the third refrigeration / heating performance level, when the temperature difference is a standard temperature difference and the set temperature is a standard set temperature; and determining that the preset degree of improvement is met when a third time difference between the ninth and tenth air conditioner running times is greater than or equal to a second time threshold, and / or a third power difference between the ninth and tenth air conditioner running powers is greater than or equal to a second power threshold. This can facilitate more accurate determination of whether the preset degree of improvement is met.

[0174] In the above embodiments, the standard set temperature can be a human comfort temperature range, for example, the standard set temperature can be 20℃, 21℃, 22℃, 23℃, 24℃, 25℃, 26℃, 27℃, 28℃; or the standard set temperature can be a normal temperature, such as 25℃; or the standard set temperature can be a current user's average set temperature; or the standard set temperature can be an average set temperature of users using the same model of air conditioner. A suitable standard set temperature can be determined by a person skilled in the art according to actual conditions.

[0175] In the foregoing S102, in the case that the refrigeration / heating performance indicated by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance indicated by the preset refrigeration / heating performance level, the self-cleaning duration is determined according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level.

[0176] In the embodiments of the present application, the refrigeration / heating performance level can represent the required air conditioner running duration and / or air conditioner running power for reducing / increasing the temperature of a unit volume of indoor space by a unit temperature.

[0177] Alternatively, the refrigeration / heating performance level can represent the temperature reduction or temperature increase of a unit volume of indoor space under the unit running duration and / or unit running power of the air conditioner.

[0178] The preset refrigeration / heating performance level can be a preset value, or the preset refrigeration / heating performance level is determined according to the self-cleaning effect of the last self-cleaning process.

[0179] The preset refrigeration / heating performance level is used to represent the standard for measuring whether the refrigeration / heating performance requirement is met in the current self-cleaning confirmation process.

[0180] Specifically, the standard for measuring in the current self-cleaning process can be determined in the following two ways:

[0181] The first way: the first preset refrigeration / heating performance level in the last self-cleaning confirmation process is adjusted to a second preset refrigeration / heating performance level according to the historical dust amount of the filter screen or the heat exchanger obtained after the historical self-cleaning process; the refrigeration / heating performance indicated by the second preset refrigeration / heating performance level is lower than the refrigeration / heating performance indicated by the first preset refrigeration / heating performance level.

[0182] The second way: the first preset refrigeration / heating performance level in the last self-cleaning confirmation process is adjusted to a second preset refrigeration / heating performance level according to the second refrigeration / heating performance level; the refrigeration / heating performance indicated by the second preset refrigeration / heating performance level is lower than the refrigeration / heating performance indicated by the first preset refrigeration / heating performance level.

[0183] The second preset refrigeration / heating performance level in the above two ways is the standard for measuring in the current self-cleaning process.

[0184] First, the above first determination method is exemplarily described.

[0185] Optionally, the adjusting the first preset cooling / heating performance level in the last self-cleaning confirmation process to the second preset cooling / heating performance level according to the historical dust amount of the filter screen or the heat exchanger obtained after the historical self-cleaning process can include: obtaining a first historical dust amount of the filter screen or the heat exchanger after the last self-cleaning process and a second historical dust amount of the filter screen or the heat exchanger after the last-but-one self-cleaning process; obtaining a first performance level increase value corresponding to a dust amount difference between the first historical dust amount and the second historical dust amount according to a corresponding relationship between the dust amount and the performance level increase value; and determining the second preset cooling / heating performance level according to a sum of the first preset cooling / heating performance level and the first performance level increase value.

[0186] The corresponding relationship between the dust amount and the performance level increase value represents the influence of the filter screen or the dust amount on the cooling / heating performance level of the air conditioner. A person skilled in the art can confirm the corresponding relationship between the dust amount and the performance level increase value by using an existing air conditioner cooling / heating model according to the specific meaning of the selected cooling / heating performance level and the specific parameters of the air conditioner, or obtain the corresponding relationship between the dust amount and the performance level increase value by means of experiments.

[0187] The corresponding relationship between the dust amount and the performance level increase value can be expressed in the form of a fitting formula or also in the form of a one-to-one corresponding data table. The corresponding relationship between the dust amount and the performance level increase value can be stored in a database. After obtaining the dust amount difference between the first historical dust amount and the second historical dust amount, the dust amount difference is substituted into the fitting formula or the dust amount difference is inquired in the database, so as to obtain the first performance level increase value corresponding to the dust amount difference.

[0188] The sum of the first preset cooling / heating performance level and the first performance level increase value can be used as the second preset cooling / heating performance level.

[0189] Alternatively, after obtaining the sum of the first preset cooling / heating performance level and the first performance level increase value, the sum is fine-tuned according to the actual situation, and the adjusted value is used as the second preset cooling / heating performance level.

[0190] Optionally, the first preset refrigeration / heating performance level in the last self-cleaning confirmation process is adjusted to the second preset refrigeration / heating performance level according to a historical dust amount of the filter screen or the heat exchanger obtained after a historical self-cleaning process, comprising: obtaining a first historical dust amount of the filter screen or the heat exchanger after the last self-cleaning process; obtaining a second performance level increase value corresponding to the first historical dust amount according to a corresponding relationship between the dust amount and the performance level increase value; obtaining an original preset refrigeration / heating performance level corresponding to the first preset refrigeration / heating performance level; and determining the second preset refrigeration / heating performance level according to a sum of the original preset refrigeration / heating performance level and the second performance level increase value.

[0191] The corresponding relationship between the dust amount and the performance level increase value can be expressed in the form of a fitting formula or in the form of a one-to-one corresponding data table. The corresponding relationship between the dust amount and the performance level increase value can be stored in a database. After the first historical dust amount is obtained, the first historical dust amount difference value is substituted into the fitting formula or the first historical dust amount is inquired in the database, and the second performance level increase value corresponding to the first historical dust amount is obtained.

[0192] In the embodiments of the present application, the preset refrigeration / heating performance level is composed of two parts, one part is the original preset refrigeration / heating performance level, and the other part is the refrigeration / heating performance level increase value.

[0193] The first preset refrigeration / heating performance level and the second preset refrigeration / heating performance level correspond to the same original preset refrigeration / heating performance level.

[0194] The sum of the original preset refrigeration / heating performance level and the second performance level increase value can be taken as the second preset refrigeration / heating performance level.

[0195] Or, after the sum of the original preset refrigeration / heating performance level and the second performance level increase value is obtained, the sum is fine-tuned according to actual conditions, and the adjusted value is taken as the second preset refrigeration / heating performance level.

[0196] The second kind of determination of the second preset refrigeration / heating performance level in the present self-cleaning process is exemplarily described below.

[0197] Optionally, the first preset refrigeration / heating performance level in the last self-cleaning confirmation process is adjusted to the second preset refrigeration / heating performance level according to the second refrigeration / heating performance level, comprising: obtaining a third performance level increase value corresponding to the second refrigeration / heating performance level according to a first corresponding relationship between the historical performance level and the performance level increase value; and determining the second preset refrigeration / heating performance level according to a sum of the first preset refrigeration / heating performance level and the third performance level increase value.

[0198] In the first correspondence between the historical performance level and the performance level increase value, the performance level increase value represents the difference between the refrigeration / heating performance represented by the historical performance level and the refrigeration / heating performance represented by the preset refrigeration / heating performance level in the current self-cleaning process, i.e., the change range of the refrigeration / heating performance level from the end of the last self-cleaning process to the beginning of the current self-cleaning process.

[0199] In the process of the decrease of the refrigeration / heating performance represented by the historical performance level, the performance level increase value can be kept unchanged, or gradually decreased, so that the change amount of the refrigeration / heating performance represented by the performance level increase value is less than the decrease amount of the refrigeration / heating performance represented by the historical performance level.

[0200] The first correspondence between the historical performance level and the performance level increase value can be expressed in the form of a fitting formula, or also in the form of a one-to-one correspondence data table. The first correspondence between the historical performance level and the performance level increase value can be stored in a database. After obtaining the second refrigeration / heating performance level, the second refrigeration / heating performance level is substituted into the fitting formula, or the second refrigeration / heating performance level is queried in the database, so as to obtain the third performance level increase value corresponding to the second refrigeration / heating performance level.

[0201] The sum of the first preset refrigeration / heating performance level and the third performance level increase value can be taken as the second preset refrigeration / heating performance level.

[0202] Alternatively, after obtaining the sum of the first preset refrigeration / heating performance level and the third performance level increase value, the sum is fine-tuned according to actual conditions, and the adjusted value is taken as the second preset refrigeration / heating performance level.

[0203] Alternatively, according to the second refrigeration / heating performance level, the first preset refrigeration / heating performance level in the confirmation process of the last self-cleaning is adjusted to obtain the second preset refrigeration / heating performance level, including: obtaining a fourth performance level increase value corresponding to the second refrigeration / heating performance level according to the second correspondence between the historical performance level and the performance level increase value; obtaining an original preset refrigeration / heating performance level corresponding to the first preset refrigeration / heating performance level; and determining the second preset refrigeration / heating performance level according to the sum of the original preset refrigeration / heating performance level and the fourth performance level increase value.

[0204] In the second correspondence between the historical performance level and the performance level increase value, the performance level increase value represents the difference between the original preset refrigeration / heating performance level and the refrigeration / heating performance represented by the preset refrigeration / heating performance level in the current self-cleaning process.

[0205] The change in the refrigeration / heating performance indicated by the performance level increase value is less than or equal to the decrease in the refrigeration / heating performance indicated by the historical performance level.

[0206] The second correspondence between the historical performance level and the performance level increase value can be expressed in the form of a fitting formula or in the form of a one-to-one correspondence data table. The second correspondence between the historical performance level and the performance level increase value can be stored in a database. After obtaining the second refrigeration / heating performance level, the second refrigeration / heating performance level is substituted into the fitting formula or the second refrigeration / heating performance level is queried in the database, and the fourth performance level increase value corresponding to the second refrigeration / heating performance level can be obtained.

[0207] In the embodiments of the present application, the preset refrigeration / heating performance level is composed of two parts, one part is the original preset refrigeration / heating performance level, and the other part is the refrigeration / heating performance level increase value.

[0208] The first preset refrigeration / heating performance level and the second preset refrigeration / heating performance level correspond to the same original preset refrigeration / heating performance level.

[0209] The sum of the initial preset refrigeration / heating performance level and the fourth performance level increase value can be used as the second preset refrigeration / heating performance level.

[0210] Alternatively, after obtaining the sum of the initial preset refrigeration / heating performance level and the fourth performance level increase value, the sum is adjusted according to actual conditions, and the adjusted value is used as the second preset refrigeration / heating performance level.

[0211] Optionally, the second preset refrigeration / heating performance level is obtained by adjusting the first preset refrigeration / heating performance level in the last self-cleaning confirmation process according to the second refrigeration / heating performance level, including: obtaining the second refrigeration / heating performance level after the last self-cleaning process and the fourth refrigeration / heating performance level of the filter screen or the heat exchanger after the self-cleaning process before the last self-cleaning process; obtaining a fifth performance level increase value corresponding to the difference between the performance levels of the second refrigeration / heating performance level and the fourth refrigeration / heating performance level according to the third correspondence between the historical performance level and the performance level increase value; and determining the second preset refrigeration / heating performance level according to the sum of the first preset refrigeration / heating performance level and the fifth performance level increase value.

[0212] In the third correspondence between the historical performance level and the performance level increase value, the performance level increase value indicates the difference between the preset refrigeration / heating performance level in the last self-cleaning confirmation process and the preset refrigeration / heating performance level in the current self-cleaning process.

[0213] The change in the refrigeration / heating performance represented by the performance grade difference value can be greater than or equal to the change in the refrigeration / heating performance represented by the performance grade increase value.

[0214] The third correspondence between the historical performance grade and the performance grade increase value can be expressed in the form of a fitting formula or in the form of a one-to-one correspondence data table. After the performance grade difference value is obtained, the performance grade difference value is substituted into the fitting formula or the performance grade difference value is queried in the database, and the fifth performance grade increase value corresponding to the performance grade difference value can be obtained.

[0215] The sum of the initial preset refrigeration / heating performance grade and the second performance grade increase value can be used as the second preset refrigeration / heating performance grade.

[0216] Alternatively, after the sum of the initial preset refrigeration / heating performance grade and the second performance grade increase value is obtained, the sum is fine-tuned according to actual conditions, and the adjusted value is used as the second preset refrigeration / heating performance grade.

[0217] In the process of determining the preset refrigeration / heating performance grade in the current self-cleaning process, the overall clogging degree of the filter screen or the overall contamination degree of the heat exchanger can reduce the refrigeration / heating performance of the air conditioner. Therefore, the first refrigeration / heating performance can represent the overall clogging degree of the filter screen or the overall contamination degree of the heat exchanger to a certain extent. Because many factors such as indoor humidity, indoor air flow, outdoor environment temperature, room sealing degree, refrigerant amount of the air conditioning system, and self-performance of the compressor and the fan can affect the refrigeration / heating performance, there can be certain errors in representing the overall clogging degree of the filter screen or the overall contamination degree of the heat exchanger by using the first refrigeration / heating performance grade determined in the foregoing steps, and the errors are not constant and are easily changed.

[0218] The second preset refrigeration / heating performance grade is a standard index for measuring whether the first refrigeration / heating performance grade meets the standard. The first refrigeration / heating performance grade does not meet the standard due to the combined action of the dust amount of the filter screen or the heat exchanger and other factors.

[0219] The second preset refrigeration / heating performance grade is obtained by adjusting the first preset refrigeration / heating performance grade in the confirmation process of the last self-cleaning. The second preset refrigeration / heating performance grade represents that the second preset refrigeration / heating performance grade used in the current self-cleaning process is relative and changeable, and the refrigeration / heating performance represented by the second preset refrigeration / heating performance grade is lower than the refrigeration / heating performance represented by the first preset refrigeration / heating performance grade, which indicates that the measurement standard is reduced in the current self-cleaning process.

[0220] The air conditioner has limited self-cleaning capability. After each cleaning process, the cooling / heating performance indicated by the second cooling / heating performance level obtained after self-cleaning is continuously reduced due to incomplete cleaning. In this case, by reducing the measurement standard in the current cleaning process, the change amount of the first cooling / heating performance level caused by other factors except the filter screen or the heat exchanger is not compressed or reduced, so as to reduce the phenomenon that the air conditioner frequently enters the self-cleaning process and reduce the influence of the self-cleaning process on the indoor temperature fluctuation.

[0221] In the above manner, the embodiments of the present application reduce the cooling / heating performance in a manner consistent with the self-cleaning capability of the air conditioner, reduce the influence of the self-cleaning process on the indoor temperature fluctuation, improve the temperature stability during the air conditioner cooling / heating process, and improve the user experience.

[0222] Figure 4 FIG. 1 is a schematic diagram of an air conditioner self-cleaning confirmation device provided by an embodiment of the present application. The air conditioner self-cleaning confirmation device can be implemented in the form of software, hardware, or a combination of both. As shown in FIG. 1, the air conditioner self-cleaning confirmation device includes a first determining module 41, a second determining module 42, a third determining module 43, and a fourth determining module 44. Figure 4

[0223] The first determining module 41 is configured to determine a first cooling / heating performance level of the air conditioner according to a first indoor temperature, a first set temperature, and a first air conditioner running time and / or a first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature.

[0224] The second determining module 42 is configured to determine a self-cleaning time according to the difference between the first cooling / heating performance level and a preset cooling / heating performance level in a case where the cooling / heating performance indicated by the first cooling / heating performance level is weaker than the cooling / heating performance indicated by the preset cooling / heating performance level.

[0225] The third determining module 43 is configured to determine a second set temperature according to a second cooling / heating performance level corresponding to the last self-cleaning process and the self-cleaning time; the cooling / heating performance indicated by the second cooling / heating performance level is stronger than the cooling / heating performance indicated by the preset cooling / heating performance level; in a cooling state, the second set temperature is less than the first set temperature, and in a heating state, the second set temperature is greater than the first set temperature.

[0226] The fourth determining module 44 is configured to confirm that the condition for entering the self-cleaning process is met in a case where the indoor temperature reaches the second set temperature.

[0227] The first determining module 41 includes a first obtaining unit, a first determining unit, and a second determining unit.​

[0228] The first obtaining unit is configured to obtain a first temperature difference between the first indoor temperature and the first set temperature;

[0229] The first determining unit is configured to take the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as the first data group, or take the first set temperature, the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as the first data group;

[0230] The second determining unit is configured to determine a first refrigeration / heating performance level corresponding to the first data group according to a correspondence between the data group and the refrigeration / heating performance level.

[0231] Optionally, the correspondence between the data group and the refrigeration / heating performance level comprises a correspondence between the temperature difference, the air conditioner running time and the refrigeration / heating performance level.

[0232] Alternatively, the correspondence between the data group and the refrigeration / heating performance level can comprise a correspondence between the temperature difference, the air conditioner running power and the refrigeration / heating performance level.

[0233] Alternatively, the correspondence between the data group and the refrigeration / heating performance level can comprise a correspondence between the temperature difference, the air conditioner running time and the air conditioner running power and the refrigeration / heating performance level.

[0234] Alternatively, the correspondence between the data group and the refrigeration / heating performance level can comprise a correspondence between the set temperature, the temperature difference, the air conditioner running time and the refrigeration / heating performance level.

[0235] Alternatively, the correspondence between the data group and the refrigeration / heating performance level can comprise a correspondence between the set temperature, the temperature difference, the air conditioner running power and the refrigeration / heating performance level.

[0236] Alternatively, the correspondence between the data group and the refrigeration / heating performance level can comprise a correspondence between the set temperature, the temperature difference, the air conditioner running time and the air conditioner running power and the refrigeration / heating performance level.

[0237] Wherein, the greater the temperature difference, the higher the refrigeration / heating performance represented by the refrigeration / heating performance level; the shorter the air conditioner running time, the higher the refrigeration / heating performance represented by the refrigeration / heating performance level; the smaller the air conditioner running power, the higher the refrigeration / heating performance represented by the refrigeration / heating performance level; in the refrigeration process, the lower the set temperature, the higher the refrigeration performance represented by the refrigeration / heating performance level; in the heating process, the higher the set temperature, the higher the refrigeration performance represented by the refrigeration / heating performance level.

[0238] Optionally, the second determining module 42 comprises a second obtaining unit and a third determining unit.

[0239] The second obtaining unit is configured to obtain a first grade difference between the first refrigeration / heating performance grade and the preset refrigeration / heating performance grade.

[0240] The third determining unit is configured to determine the self-cleaning duration according to the first grade difference, the self-cleaning duration being positively correlated with the first grade difference.

[0241] Optionally, the second determining module 42 can comprise a third obtaining unit, a fourth obtaining unit and a fourth determining unit.

[0242] The third obtaining unit is configured to, in the case that the temperature difference is a standard temperature difference, obtain a second air conditioner running duration and / or a second air conditioner running power corresponding to the first refrigeration / heating performance grade, and a third air conditioner running duration and / or a third air conditioner running power corresponding to the preset refrigeration / heating performance grade.

[0243] The fourth obtaining unit is configured to obtain a first duration difference between the second air conditioner running duration and the third air conditioner running duration, and / or a first power difference between the second air conditioner running power and the third air conditioner running power.

[0244] The fourth determining unit is configured to determine the self-cleaning duration according to the first duration difference and / or the first power difference, the self-cleaning duration being positively correlated with the first duration difference and / or the first power difference.

[0245] Optionally, the second determining module 42 can comprise a fifth obtaining unit, a sixth obtaining unit and a fifth determining unit.

[0246] The fifth obtaining unit is configured to, in the case that the temperature difference is a standard temperature difference and the set temperature is a standard set temperature, obtain a fourth air conditioner running duration and / or a fourth air conditioner running power corresponding to the first refrigeration / heating performance grade, and a fourth air conditioner running duration and / or a fourth air conditioner running power corresponding to the preset refrigeration / heating performance grade.

[0247] The sixth obtaining unit is configured to obtain a second duration difference between the fourth air conditioner running duration and a fifth air conditioner running duration, and / or a second power difference between the fourth air conditioner running power and a fifth air conditioner running power.

[0248] The fifth determining unit is configured to determine the self-cleaning duration according to the second duration difference and / or the second power difference, the self-cleaning duration being positively correlated with the second duration difference and / or the second power difference.

[0249] Optionally, the second determining module 42 can comprise a seventh obtaining unit and a sixth determining unit.

[0250] The seventh obtaining unit is configured to obtain a second temperature difference corresponding to the first cooling / heating performance grade and a third temperature difference corresponding to the second cooling / heating performance grade when the running time and / or the running power of the air conditioner is the standard running time and / or the standard running power.

[0251] The sixth determining unit is configured to determine the self-cleaning time according to a difference between the second temperature difference and the third temperature difference, wherein the difference between the second temperature difference and the third temperature difference is positively correlated with the self-cleaning time.

[0252] Optionally, the third determining module 43 comprises a seventh determining unit, an eighth obtaining unit and an eighth determining unit.

[0253] The seventh determining unit is configured to determine an indoor temperature reduction value in the self-cleaning process according to the self-cleaning time, wherein the indoor temperature reduction value is positively correlated with the self-cleaning time.

[0254] The eighth obtaining unit is configured to obtain a required time length for reducing the indoor temperature reduction value to a temperature before the self-cleaning process by using the second cooling / heating performance grade, wherein the required time length is negatively correlated with the cooling / heating performance represented by the second cooling / heating performance grade, and the required time length is positively correlated with the indoor temperature reduction value.

[0255] The eighth determining unit is configured to determine a second set temperature according to the required time length, wherein the second set temperature is negatively correlated with the required time length in the cooling state, and the second set temperature is positively correlated with the required time length in the heating state.

[0256] Optionally, the seventh determining unit is specifically configured to obtain a fourth temperature difference between an actual indoor temperature and an outdoor temperature, wherein the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is an average temperature of the first indoor temperature and the first set temperature, and the indoor temperature reduction value positively correlated with the fourth temperature difference and the self-cleaning time is obtained.

[0257] Optionally, the eighth obtaining unit is specifically configured to obtain a fourth temperature difference between an actual indoor temperature and an outdoor temperature, wherein the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is an average temperature of the first indoor temperature and the first set temperature, and the required time length negatively correlated with the cooling / heating performance represented by the second cooling / heating performance grade and positively correlated with the indoor temperature reduction value and the fourth temperature difference is obtained.

[0258] Optionally, the confirmation device for air conditioner self-cleaning further comprises a fifth determining module and a sixth determining module.

[0259] The fifth determining module is configured to determine a third refrigeration / heating performance grade of the air conditioner according to the second indoor temperature, the third set temperature, and the sixth air conditioner running time length and / or the sixth air conditioner running power required for the second indoor temperature to reach the third set temperature.

[0260] The sixth determining module determines that the self-cleaning process is effective and makes the air conditioner continue to run in a case that the first refrigeration / heating performance grade and the third refrigeration / heating performance grade can represent an improvement degree of the self-cleaning process on the refrigeration / heating performance of the air conditioner, and the improvement degree meets a preset improvement degree.

[0261] Optionally, the fifth determining module comprises a ninth obtaining unit, a ninth determining unit and a tenth determining unit.

[0262] The ninth obtaining unit is configured to obtain a fourth temperature difference between the second indoor temperature and the third set temperature.

[0263] The ninth determining unit is configured to take the fourth temperature difference, the sixth air conditioner running time length and / or the sixth air conditioner running power as a second data group.

[0264] The tenth determining unit is configured to determine a third refrigeration / heating performance grade corresponding to the second data group according to a corresponding relationship between the data group and the refrigeration / heating performance grade.

[0265] In some embodiments, the confirmation device for air conditioner self-cleaning comprises a processor and a memory storing program instructions, and the processor is configured to execute the program instructions to perform the confirmation method for air conditioner self-cleaning provided in the foregoing embodiments.

[0266] Figure 5 is a schematic diagram of a confirmation device for air conditioner self-cleaning provided in an embodiment of the present application. As shown in Figure 5 The confirmation device for air conditioner self-cleaning comprises:

[0267] The processor 51 and the memory 52 can also comprise a communication interface 53 and a bus 54. The processor 51, the communication interface 53 and the memory 52 can communicate with each other through the bus 54. The communication interface 53 can be used for information transmission. The processor 51 can call the logical instructions in the memory 52 to execute the confirmation method for air conditioner self-cleaning provided in the foregoing embodiments.

[0268] In addition, the logical instructions in the memory 52 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0269] The memory 52 can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present application. The processor 51 executes the functions and data processing, i.e., implements the method in the above-mentioned method embodiments, by running the software programs, instructions and modules stored in the memory 52.

[0270] The memory 52 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 52 can include a high-speed random access memory, and can also include a non-volatile memory.

[0271] Figure 6 The intelligent air conditioner schematic diagram is provided by the embodiments of the present application.

[0272] As shown in Figure 6 , the intelligent air conditioner 61 includes the confirmation device 62 for air conditioner self-cleaning provided by the foregoing embodiments.

[0273] The embodiments of the present application provide a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to:

[0274] According to the first indoor temperature, the first set temperature, and the first air conditioner running time and / or the first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature, determine the first refrigeration / heating performance level of the air conditioner.

[0275] In the case that the refrigeration / heating performance indicated by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance indicated by the preset refrigeration / heating performance level, determine the self-cleaning time according to the difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level.

[0276] According to the second refrigeration / heating performance level corresponding to the last self-cleaning process, and the self-cleaning time, determine the second set temperature; the refrigeration / heating performance indicated by the second refrigeration / heating performance level is stronger than the refrigeration / heating performance indicated by the preset refrigeration / heating performance level; in the refrigeration state, the second set temperature is less than the first set temperature, and in the heating state, the second set temperature is greater than the first set temperature.

[0277] In the case that the indoor temperature reaches the second set temperature, it is confirmed that the condition for entering the self-cleaning process is met.

[0278] The embodiment of the present application provides a computer program product, the computer program product comprises a computer program stored on a computer readable storage medium, the computer program comprises program instructions, when the program instructions are executed by a computer, the computer executes the following steps:

[0279] determining the first refrigeration / heat performance grade of the air conditioner according to the first indoor temperature, the first set temperature, and the first air conditioner running time and / or the first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature;

[0280] in the case that the refrigeration / heat performance indicated by the first refrigeration / heat performance grade is weaker than the refrigeration / heat performance indicated by the preset refrigeration / heat performance grade, determining the self-cleaning time according to the difference between the first refrigeration / heat performance grade and the preset refrigeration / heat performance grade;

[0281] determining the second set temperature according to the second refrigeration / heat performance grade corresponding to the last self-cleaning process and the self-cleaning time; the refrigeration / heat performance indicated by the second refrigeration / heat performance grade is stronger than the refrigeration / heat performance indicated by the preset refrigeration / heat performance grade; in the refrigeration state, the second set temperature is smaller than the first set temperature, and in the heating state, the second set temperature is greater than the first set temperature;

[0282] in the case that the indoor temperature reaches the second set temperature, confirming that the condition of entering the self-cleaning process is met.

[0283] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0284] The technical scheme of the embodiment of the present application can be embodied in the form of a software product, the computer software product is stored in a storage medium, and comprises one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method in the embodiment of the present application. The storage medium described above can be a non-transitory storage medium, including: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0285] The foregoing description and accompanying drawings fully illustrate embodiments of this application to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Unless otherwise specified, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes that element. In this document, each embodiment may focus on describing the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, then the relevant parts can be referred to the description of the method section.

[0286] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0287] The disclosed method, product (including but not limited to device, equipment, etc.) in the embodiments disclosed in the present document can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit can be merely a logical function division. In actual implementation, another division mode can be used. For example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other form. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, which can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to implement the embodiments. In addition, the functional units in the embodiments of the present application can be integrated in one processing unit, or each unit can be a physical unit, or two or more units can be integrated in one unit.

[0288] The flowcharts and block diagrams in the drawings show the possible implementation architecture, function and operation of the system, method and computer program product according to the embodiments of the present application. In this regard, each block in the flowchart or block diagram can represent a module, program segment or part of code containing one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions noted in the blocks can occur in different order from that shown in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes in reverse order, depending on the functions involved. Each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

Claims

1. A method for confirming the self-cleaning function of an air conditioner, characterized in that, The method comprises the following steps: determining a first cooling / heating performance level of the air conditioner according to the first indoor temperature, the first set temperature, and the first air conditioner running time and / or the first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature; in the case where the cooling / heating performance indicated by the first cooling / heating performance level is weaker than the cooling / heating performance indicated by a preset cooling / heating performance level, determining a self-cleaning time according to the difference between the first cooling / heating performance level and the preset cooling / heating performance level; determining an indoor temperature reduction value in the self-cleaning process according to the self-cleaning time; the indoor temperature reduction value is positively correlated with the self-cleaning time; obtaining a required time for the indoor temperature reduction value to return to the temperature before the self-cleaning process after the second cooling / heating performance level corresponding to the above self-cleaning process; the required time is negatively correlated with the cooling / heating performance indicated by the second cooling / heating performance level, and is positively correlated with the indoor temperature reduction value; the cooling / heating performance indicated by the second cooling / heating performance level is stronger than the cooling / heating performance indicated by the preset cooling / heating performance level; determining a second set temperature according to the required time; in the cooling state, the second set temperature is negatively correlated with the required time, and in the heating state, the second set temperature is positively correlated with the required time; in the cooling state, the second set temperature is smaller than the first set temperature, and in the heating state, the second set temperature is larger than the first set temperature; in the case where the indoor temperature reaches the second set temperature, it is determined that the condition for entering the self-cleaning process is met.

2. The validation method of claim 1, wherein, The method comprises the following steps: obtaining a first temperature difference between the first indoor temperature and the first set temperature; taking the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as a first data group, or taking the first set temperature, the first temperature difference, the first air conditioner running time and / or the first air conditioner running power as a first data group; determining a first cooling / heating performance level corresponding to the first data group according to the correspondence between the data group and the cooling / heating performance level.

3. The validation method of claim 2, wherein, The correspondence between the data group and the cooling / heating performance level comprises: the correspondence between the temperature difference, the air conditioner running time and the cooling / heating performance level; or, the correspondence between the temperature difference, the air conditioner running power and the cooling / heating performance level; or, the correspondence between the temperature difference, the air conditioner running time and the air conditioner running power and the cooling / heating performance level; or, the correspondence between the set temperature, the temperature difference, the air conditioner running time and the cooling / heating performance level; or, the correspondence between the set temperature, the temperature difference, the air conditioner running power and the cooling / heating performance level; or, the correspondence between the set temperature, the temperature difference, the air conditioner running time and the air conditioner running power and the cooling / heating performance level. The greater the temperature difference is, the higher the cooling / heating performance indicated by the cooling / heating performance grade is; the shorter the air conditioner running time is, the higher the cooling / heating performance indicated by the cooling / heating performance grade is; the smaller the air conditioner running power is, the higher the cooling / heating performance indicated by the cooling / heating performance grade is; in the cooling process, the lower the set temperature is, the higher the cooling performance indicated by the cooling / heating performance grade is; in the heating process, the higher the set temperature is, the higher the cooling performance indicated by the cooling / heating performance grade is.

4. The validation method according to any one of claims 1 to 3, characterized in that, The self-cleaning time is determined according to the difference between the first cooling / heating performance grade and the preset cooling / heating performance grade, comprising: a first grade difference between the first cooling / heating performance grade and the preset cooling / heating performance grade is obtained; the self-cleaning time is determined according to the first grade difference, and the self-cleaning time is positively correlated with the first grade difference; or, in the case that the temperature difference is a standard temperature difference, a second air conditioner running time and / or a second air conditioner running power corresponding to the first cooling / heating performance grade and a third air conditioner running time and / or a third air conditioner running power corresponding to the preset cooling / heating performance grade are obtained; a first time difference between the second air conditioner running time and the third air conditioner running time is obtained, and / or a first power difference between the second air conditioner running power and the third air conditioner running power is obtained; the self-cleaning time is determined according to the first time difference and / or the first power difference, and the self-cleaning time is positively correlated with the first time difference and / or the first power difference; wherein the standard temperature difference is a temperature difference between a local average temperature and a user average set temperature, or a temperature difference between a current seasonal average temperature and the user average set temperature; or, in the case that the temperature difference is a standard temperature difference and the set temperature is a standard set temperature, a fourth air conditioner running time and / or a fourth air conditioner running power corresponding to the first cooling / heating performance grade and a fourth air conditioner running time and / or a fourth air conditioner running power corresponding to the preset cooling / heating performance grade are obtained; a second time difference between the fourth air conditioner running time and the fifth air conditioner running time is obtained, and / or a second power difference between the fourth air conditioner running power and the fifth air conditioner running power is obtained; the self-cleaning time is determined according to the second time difference and / or the second power difference, and the self-cleaning time is positively correlated with the second time difference and / or the second power difference; wherein the standard set temperature is a human body comfortable temperature interval, or a normal temperature, or an average set temperature of the current user, or an average set temperature of the user using the same model air conditioner; or, In a case that the air conditioner running time and / or the air conditioner running power is a standard running time and / or a standard running power, a second temperature difference corresponding to the first refrigeration / heating performance level and a third temperature difference corresponding to the second refrigeration / heating performance level are obtained; the self-cleaning time is determined according to a difference between the second temperature difference and the third temperature difference; the difference between the second temperature difference and the third temperature difference is positively correlated with the self-cleaning time; the standard running time is an average value of a time required for the indoor temperature to reach a set temperature after the air conditioner is started by the current user for multiple times, or an average value of a time required for the indoor temperature to reach the set temperature after the air conditioner is started by multiple different users using the same type of air conditioner; the standard running power is an average running power of the air conditioner during a process in which the indoor temperature reaches the set temperature after the air conditioner is started by the current user for multiple times, or an average running power of the air conditioner during a process in which the indoor temperature reaches the set temperature after the air conditioner is started by multiple different users using the same type of air conditioner.

5. The validation method of claim 1, wherein, The indoor temperature reduction value in the self-cleaning process is determined according to the self-cleaning time, including: A fourth temperature difference between the actual indoor temperature and the outdoor temperature is obtained; the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is an average temperature of the first indoor temperature and the first set temperature; The indoor temperature reduction value positively correlated with the self-cleaning time and the fourth temperature difference is obtained.

6. The validation method of claim 1, wherein, The required time length for reducing the indoor temperature reduction value to a temperature before the self-cleaning process by the second refrigeration / heating performance level is obtained, including: A fourth temperature difference between the actual indoor temperature and the outdoor temperature is obtained; the actual indoor temperature is the first indoor temperature, or the actual indoor temperature is the first set temperature, or the actual indoor temperature is an average temperature of the first indoor temperature and the first set temperature; The required time length positively correlated with the refrigeration / heating performance represented by the second refrigeration / heating performance level, the indoor temperature reduction value and the fourth temperature difference is obtained. 7.A confirmation device for self-cleaning of an air conditioner, characterized by, Including: The first determining module is configured to determine the first refrigeration / heating performance level of the air conditioner according to the first indoor temperature, the first set temperature, and the first air conditioner running time and / or the first air conditioner running power required for the indoor temperature to reach the first set temperature from the first indoor temperature; The second determining module is configured to determine the self-cleaning time according to a difference between the first refrigeration / heating performance level and the preset refrigeration / heating performance level in a case that the refrigeration / heating performance represented by the first refrigeration / heating performance level is weaker than the refrigeration / heating performance represented by the preset refrigeration / heating performance level; The third determining module is configured to determine the second set temperature according to the second refrigeration / heating performance level corresponding to the last self-cleaning process and the self-cleaning time; The refrigeration / heating performance represented by the second refrigeration / heating performance level is stronger than the refrigeration / heating performance represented by the preset refrigeration / heating performance level; in the refrigeration state, the second set temperature is less than the first set temperature, and in the heating state, the second set temperature is greater than the first set temperature; The fourth determining module is configured to confirm that the condition for entering the self-cleaning process is met when the indoor temperature reaches the second set temperature. The third determining module comprises a seventh determining unit, an eighth obtaining unit and an eighth determining unit. The seventh determining unit is configured to determine an indoor temperature reduction value in the self-cleaning process according to the self-cleaning duration; the indoor temperature reduction value is positively correlated with the self-cleaning duration; the eighth obtaining unit is configured to obtain a required duration for reducing the indoor temperature reduction value to the temperature before the self-cleaning process at the second refrigeration / heating performance level; the required duration is negatively correlated with the refrigeration / heating performance represented by the second refrigeration / heating performance level, and is positively correlated with the indoor temperature reduction value; and the eighth determining unit is configured to determine the second set temperature according to the required duration; in the refrigeration state, the second set temperature is negatively correlated with the required duration, and in the heating state, the second set temperature is positively correlated with the required duration. 8.A device for confirming self-cleaning of an air conditioner, comprising a processor and a memory having stored program instructions, wherein, The processor is configured to execute the program instructions to perform the method for confirming self-cleaning of an air conditioner according to any one of claims 1 to 6.

9. An intelligent air conditioner, characterized by, The air conditioner comprises the device for confirming self-cleaning according to claim 7 or 8.

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