Humidity control method and device, air conditioner and storage medium

Abstract

The invention discloses a humidity control method and device, an air conditioner and a storage medium, the humidity control method is applied to the air conditioner, and the humidity control method comprises the steps that under the condition that sudden change of indoor environment humidity is detected, the humidity difference value before and after sudden change is determined, and the indoor environment humidity before sudden change is smaller than the indoor environment humidity after sudden change; and at least one of a frequency adjusting instruction and a rotating speed adjusting instruction is determined according to the humidity difference value, the frequency adjusting instruction indicates a compressor in the air conditioner to conduct frequency increasing control, and the rotating speed adjusting instruction is used for indicating an indoor fan in the air conditioner to conduct speed reducing control. According to the method, under the condition that sudden change of the indoor environment humidity is detected, the dehumidification effect is improved by improving the frequency of the compressor and / or reducing the rotating speed of the indoor fan, and therefore the humidity of the indoor environment can be rapidly reduced.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a humidity control method, device, air conditioner and storage medium. Background Art

[0002] At present, the functions of air conditioners such as no wind feeling, soft wind feeling, and anti-direct blowing are all achieved by changing the angle of the air guide strip to reduce the air volume, thereby achieving the effect of reducing the wind feeling. As the air volume of the air conditioner is reduced, the air conditioner is more likely to produce condensation. In order to solve the condensation problem, when the air conditioner detects that the humidity has risen, it directly reduces the compressor frequency, thereby reducing the air outlet temperature and increasing the evaporator temperature to prevent condensation.

[0003] However, if the humidity rises for a short time when the user opens the door, the air conditioner will reduce the frequency of the compressor when it detects the increase in humidity. Since the frequency of the compressor is low, the air conditioner has no dehumidification ability, resulting in higher humidity. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first object of the present invention is to provide a humidity control method, which improves the dehumidification effect by increasing the frequency of the compressor and / or reducing the speed of the indoor fan when a sudden change in the humidity of the indoor environment is detected, thereby quickly reducing the humidity of the indoor environment.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] The third object of the present invention is to provide an air conditioner.

[0007] A fourth object of the present invention is to provide a humidity control device.

[0008] To achieve the above-mentioned purpose, a humidity control method is proposed according to an embodiment of the first aspect of the present invention, which is applied to an air conditioner, and the method includes: when a sudden change in the indoor environmental humidity is detected, determining the humidity difference before and after the mutation, wherein the indoor environmental humidity before the mutation is less than the indoor environmental humidity after the mutation; determining at least one of a frequency adjustment instruction and a speed adjustment instruction according to the humidity difference, wherein the frequency adjustment instruction instructs the compressor in the air conditioner to perform frequency increase control, and the speed adjustment instruction is used to instruct the indoor fan in the air conditioner to perform speed reduction control.

[0009] According to the humidity control method of the embodiment of the present invention, when a sudden change in the indoor environmental humidity is detected, the frequency of the compressor is controlled to increase and / or the speed of the indoor fan is controlled to decrease according to the humidity difference. Compared with the related art that gives priority to solving the condensation problem when an increase in humidity is detected, the increased frequency of the compressor and the reduced speed of the indoor fan enhance the dehumidification capacity of the air conditioner, thereby quickly reducing the humidity of the indoor environment.

[0010] According to one embodiment of the present invention, when the compressor is controlled to increase its frequency according to a frequency adjustment instruction, the method also includes: if it is detected that the indoor ambient humidity has decreased, controlling the frequency of the compressor to decrease to the frequency before the frequency increase; if it is detected that the indoor ambient humidity has not decreased, when the compressor runs at the frequency after the frequency increase for a first preset time, controlling the frequency of the compressor to decrease to a first target frequency, wherein the first target frequency is less than the frequency before the frequency increase.

[0011] According to one embodiment of the present invention, before performing frequency increase control on the compressor according to the frequency adjustment instruction, the method further includes: if the frequency of the compressor reaches a second target frequency, performing speed reduction control on the indoor fan, wherein the second target frequency is used to characterize high-frequency operation of the compressor.

[0012] According to one embodiment of the present invention, before the compressor is controlled to increase its frequency according to the frequency adjustment instruction, the method also includes: if the frequency of the compressor does not reach the second target frequency, then when the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, the indoor fan is controlled to reduce its speed and the frequency of the compressor is controlled to remain unchanged, wherein the second target frequency is used to characterize the high-frequency operation of the compressor.

[0013] According to an embodiment of the present invention, the frequency of the compressor after frequency upgrading is positively correlated with the humidity difference.

[0014] According to one embodiment of the present invention, when the compressor operates at the upgraded frequency, the method also includes: determining the dew point temperature based on the current indoor ambient humidity and the current indoor ambient temperature; and when the evaporator temperature of the air conditioner is greater than the dew point temperature, further reducing the speed of the indoor fan.

[0015] According to one embodiment of the present invention, when the indoor fan is controlled to reduce its speed according to a speed adjustment instruction, the method also includes: if it is detected that the indoor ambient humidity is reduced, controlling the operating speed of the indoor fan to increase to the speed before the speed reduction; if it is detected that the indoor ambient humidity is not reduced, when the time when the indoor fan runs at the speed after the speed reduction reaches a second preset time, controlling the operating speed of the indoor fan to increase to a first target speed, wherein the first target speed is greater than the speed before the speed reduction.

[0016] According to an embodiment of the present invention, when the air guide strip of the air conditioner is closed, the method further comprises: controlling the air conditioner to stop humidity detection and maintaining the humidity detection for a third preset time.

[0017] According to one embodiment of the present invention, before a sudden change in indoor ambient humidity is detected, the method further includes: controlling the air conditioner to operate in a target air outlet mode, wherein the target air outlet mode includes at least one of a no wind mode, a soft wind mode and an anti-direct blowing mode.

[0018] According to an embodiment of the present invention, when the running speed of the indoor fan is reduced, the method further includes: controlling the air conditioner to stop humidity detection and maintain it for a fourth preset time.

[0019] To achieve the above objective, according to a second aspect of the present invention, a computer-readable storage medium is provided, on which a humidity control program is stored. When the program is executed by a processor, the humidity control method of any of the above embodiments is implemented.

[0020] According to the computer-readable storage medium of an embodiment of the present invention, by executing a computer program of the above-mentioned humidity control method, when a sudden change in the humidity of the indoor environment is detected, the dehumidification effect is improved by increasing the frequency of the compressor and / or reducing the speed of the indoor fan, thereby quickly reducing the humidity of the indoor environment.

[0021] To achieve the above-mentioned purpose, an air conditioner is proposed according to an embodiment of the third aspect of the present invention, comprising: a memory, a processor, and a humidity control program stored in the memory and executable on the processor. When the processor executes the program, the humidity control method of any of the aforementioned embodiments is implemented.

[0022] According to the air conditioner of the embodiment of the present invention, the computer program of the above-mentioned humidity control method is executed by the processor. When a sudden change in the humidity of the indoor environment is detected, the dehumidification effect is improved by increasing the frequency of the compressor and / or reducing the speed of the indoor fan, thereby quickly reducing the humidity of the indoor environment.

[0023] To achieve the above-mentioned purpose, according to an embodiment of the fourth aspect of the present invention, a humidity control device is proposed, which is applied to an air conditioner. The device includes: a humidity detection module, which is used to determine the humidity difference before and after the mutation when a sudden change in the indoor environment humidity is detected, wherein the indoor environment humidity before the mutation is less than the indoor environment humidity after the mutation; a control module, which is used to determine at least one of a frequency adjustment instruction and a speed adjustment instruction according to the humidity difference, wherein the frequency adjustment instruction instructs the compressor in the air conditioner to perform frequency increase control, and the speed adjustment instruction is used to instruct the indoor fan in the air conditioner to perform speed reduction control.

[0024] According to the humidity control device of the embodiment of the present invention, when the humidity detection module detects a sudden change in the indoor environmental humidity, the control module controls the frequency of the compressor to increase and / or controls the speed of the indoor fan to decrease according to the humidity difference. Compared with the related art, when the humidity increase is detected, the condensation problem is solved first. The increased frequency of the compressor and the reduced speed of the indoor fan enhance the dehumidification capacity of the air conditioner, thereby quickly reducing the humidity of the indoor environment.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a system schematic diagram of an air conditioner according to an embodiment of the present invention;

[0027] Figure 2 is a schematic flow chart of a humidity control method according to an embodiment of the present invention;

[0028] Figure 3 is a flow chart of a humidity control method using a compressor frequency control method according to an embodiment of the present invention;

[0029] Figure 4 It is a flow chart of a humidity control method using a method of controlling the operating speed of an indoor fan according to an embodiment of the present invention;

[0030] Figure 5 is a flow chart of a humidity control method using a method of controlling the compressor frequency and the indoor fan operating speed according to an embodiment of the present invention;

[0031] Figure 6 is a system schematic diagram of an air conditioner according to another embodiment of the present invention;

[0032] Figure 7 Schematic diagram of the structure of a humidity control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] It should be noted that this application is made based on the inventor's understanding and research of the following issues:

[0035] Air conditioners in related art generally solve the condensation problem in the following two ways:

[0036] Method 1: When the air conditioner detects that the humidity is rising, it directly reduces the compressor frequency, which reduces the outlet air temperature and increases the evaporator temperature, thereby preventing condensation. The problem caused by this is that the humidity rises for a short time when the user opens the door, and the frequency is reduced, resulting in poor cooling effect. In addition, during this period, since the compressor frequency is reduced, there is no dehumidification effect, and the humidity will remain high.

[0037] Method 2: When the air conditioner detects that the humidity is rising, it maintains the current frequency for a period of time and then reduces the frequency. The problem with this is that if the current frequency is relatively low, there is still no dehumidification effect and the current humidity still cannot be reduced during this period of time.

[0038] Therefore, in the related art, when the humidity rises, the priority of the air conditioner is to prevent the formation of condensation, and it is unable to solve the problem of the humidity rising in a short time caused by the user opening the door or window for a short time.

[0039] Based on this, the embodiments of the present invention provide a humidity control method, device, air conditioner and storage medium. When a sudden change in the indoor environmental humidity is detected, the dehumidification effect is improved by increasing the frequency of the compressor and / or reducing the speed of the indoor fan, thereby quickly reducing the humidity of the indoor environment.

[0040] The humidity control method, device, air conditioner and storage medium according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0041] Figure 1 is a system schematic diagram of an air conditioner according to an embodiment of the present invention. Figure 1 As shown, the air conditioner includes: a humidity sensor 10 , an indoor fan module 20 , a wind speed detection module 30 , a compressor 40 and a controller 50 .

[0042] In this embodiment, the humidity control method can be applied to the controller 50. The humidity sensor 10 is used to detect the indoor environment humidity and send the indoor environment humidity to the controller 50. The wind speed detection module 30 is used to detect the rotation speed of the indoor fan and send the rotation speed to the controller 50. When the controller 50 detects that the indoor environment humidity has a sudden change, it determines the humidity difference before and after the sudden change, and controls the compressor 40 to increase the operating frequency and / or controls the indoor fan module 20 to reduce the speed of the indoor fan according to the humidity difference.

[0043] In an optional embodiment, if Figure 1 As shown, the air conditioner further includes an indoor temperature detection module 60 and an evaporator temperature detection module 70. The indoor temperature detection module 60 is used to detect the indoor return air temperature, and the evaporator temperature detection module 70 is used to detect the temperature of the evaporator.

[0044] Figure 2 FIG. 1 is a flow chart of a humidity control method according to an embodiment of the present invention. Figure 2 As shown, the humidity control method includes the following steps:

[0045] To achieve the above object, a humidity control method is proposed according to a first aspect of the present invention, which is applied to an air conditioner. The method includes:

[0046] S101, when a sudden change in the indoor environmental humidity is detected, determining a humidity difference before and after the sudden change, wherein the indoor environmental humidity before the sudden change is less than the indoor environmental humidity after the sudden change.

[0047] Specifically, the indoor environmental humidity can be detected by the humidity sensor in the air conditioner to detect the humidity value of the return air outlet of the air conditioner. However, since there is a difference between the humidity of the return air outlet of the air conditioner and the average humidity of the indoor environment, and the humidity of the return air outlet is easily affected by changes in the wind field and the angle of the air guide strip, the indoor environmental humidity can also be detected by an external humidity detection device. The humidity detection device can transmit the signal to the controller of the air conditioner through WIFI (wireless network communication technology), or send a code to the controller through an infrared signal, or transmit it through an external serial port. After the controller receives the indoor environmental humidity, if it detects that the indoor environmental humidity rises by more than a preset amplitude in a short period of time, it is considered that the indoor environmental humidity has changed suddenly and dehumidification is required. If the indoor environmental humidity rises slowly, the compressor frequency can be reduced to prevent the formation of condensation.

[0048] S102, determining at least one of a frequency adjustment instruction and a speed adjustment instruction according to the humidity difference, wherein the frequency adjustment instruction instructs the compressor in the air conditioner to perform frequency increase control, and the speed adjustment instruction is used to instruct the indoor fan in the air conditioner to perform speed reduction control.

[0049] Specifically, when the frequency of the compressor increases, the temperature of the evaporator decreases, and when the air flows through the evaporator with a lower temperature, the moisture in the air is condensed, thereby reducing the humidity. When the speed of the indoor fan decreases, the temperature of the indoor air decreases. When the temperature of the indoor air drops below the dew point temperature, the moisture in the indoor air condenses into liquid, thereby reducing the humidity.

[0050] In the above embodiment, when it is detected that the indoor humidity rises in a short time, the dehumidification effect is improved by increasing the frequency of the compressor and / or reducing the speed of the indoor fan, so that the humidity of the indoor environment can be quickly reduced.

[0051] In some embodiments, when the compressor is controlled to increase its frequency according to a frequency adjustment instruction, the method also includes: if it is detected that the indoor ambient humidity has decreased, controlling the frequency of the compressor to decrease to the frequency before the frequency increase; if it is detected that the indoor ambient humidity has not decreased, when the compressor runs at the frequency after the frequency increase for a first preset time, controlling the frequency of the compressor to decrease to a first target frequency, wherein the first target frequency is less than the frequency before the frequency increase.

[0052] It is understandable that if it is detected that the indoor humidity is reduced, the air conditioner's dehumidification is effective, so the compressor frequency is reduced to the frequency before the frequency increase, which can avoid the situation where the indoor temperature is too low due to the compressor frequency being too high. If the compressor runs at the frequency after the frequency increase for a first preset time and the indoor humidity has not decreased, it is considered that the user may have opened the door or window for a long time, and the air conditioner cannot effectively dehumidify the indoor environment. In order to prevent condensation, the compressor frequency is reduced to a first target frequency that is lower than the frequency before the frequency increase.

[0053] In some embodiments, before performing frequency increase control on the compressor according to the frequency adjustment instruction, the method further includes: if the frequency of the compressor reaches a second target frequency, performing speed reduction control on the indoor fan, wherein the second target frequency is used to characterize high-frequency operation of the compressor.

[0054] Specifically, if the frequency of the compressor reaches the second target frequency, it indicates that the compressor is already in a high-frequency operation state, and the dehumidification effect can be further improved by reducing the rotation speed of the indoor fan.

[0055] In this embodiment, when the compressor is running at a high frequency, the dehumidification effect is further improved by reducing the rotation speed of the indoor fan, which can avoid the situation where the life of the compressor is shortened due to long-term high-frequency operation of the compressor.

[0056] In some embodiments, before the compressor is controlled to increase its frequency according to the frequency adjustment instruction, the method also includes: if the frequency of the compressor does not reach the second target frequency, then when the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, the indoor fan is controlled to reduce its speed and the frequency of the compressor is controlled to remain unchanged, wherein the second target frequency is used to characterize the high-frequency operation of the compressor.

[0057] Specifically, if the frequency of the compressor does not reach the second target frequency, the frequency of the compressor can be further increased. If the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, the current indoor temperature has met the set temperature. At this time, in order to prevent the indoor temperature from being too low, the indoor fan is controlled to reduce speed to further improve the dehumidification effect.

[0058] It should be noted that the current indoor temperature can be detected by the indoor temperature detection module mentioned above.

[0059] In an optional implementation, if the frequency of the compressor does not reach the second target frequency, the compressor is controlled to increase its frequency when the current indoor temperature is greater than or equal to the sum of the set temperature and the preset temperature threshold. If the current indoor temperature is greater than or equal to the sum of the set temperature and the preset temperature threshold, the current indoor temperature is high, so the frequency of the compressor can be further increased, thereby further improving the dehumidification effect and the cooling effect.

[0060] In the above embodiment, when the compressor is not in a high-frequency operation state and the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, the dehumidification effect can be improved by reducing the speed of the indoor fan, which can prevent the indoor temperature from being too low, thereby improving the user's comfort.

[0061] In some embodiments, the frequency of the compressor after frequency conversion is positively correlated with the humidity difference.

[0062] It is understandable that the higher the frequency of the compressor, the better the dehumidification effect of the compressor. Therefore, when the temperature difference is greater, the frequency of the compressor after the frequency is increased.

[0063] In an optional implementation, the frequency increase value of the compressor can be calculated according to the following formula:

[0064] ΔF=K*(B1-A1)+K1

[0065] Among them, K is the humidity coefficient, B1 is the indoor environmental humidity after the mutation, A1 is the indoor environmental humidity before the mutation, and K1 is a preset constant. K and K1 can be set according to actual conditions.

[0066] It should be noted that in actual applications, the frequency increase value of the compressor can also be obtained by other means, such as establishing a table mapping based on the humidity difference, and searching the frequency increase value corresponding to the humidity difference from the table, or directly setting the frequency increase value to a fixed value. There is no specific restriction here.

[0067] Furthermore, the frequency of the compressor after frequency conversion is positively correlated with the rotation speed of the indoor fan.

[0068] It is understandable that the lower the speed of the indoor fan, the better the dehumidification effect of the air conditioner. If the speed of the indoor fan is higher, the dehumidification effect becomes worse. In order to ensure the dehumidification effect of the air conditioner, the frequency of the compressor needs to be increased.

[0069] In an optional implementation, the speed of the indoor fan after speed reduction is negatively correlated with the humidity difference, that is, the greater the humidity difference, the lower the speed of the indoor fan after speed reduction. The speed reduction value of the indoor fan can be calculated by a formula similar to the frequency increase value, or can be obtained by a table, or can be a fixed value, which is not limited here.

[0070] In some embodiments, when the compressor operates at the upgraded frequency, the method also includes: determining the dew point temperature based on the current indoor ambient humidity and the current indoor ambient temperature; and when the evaporator temperature of the air conditioner is greater than the dew point temperature, further reducing the speed of the indoor fan.

[0071] That is to say, if the temperature of the evaporator is greater than the dew point temperature, it indicates that the frequency of the compressor after frequency increase cannot meet the current dehumidification requirements. Therefore, it is necessary to further reduce the speed of the indoor fan to further improve the dehumidification capacity and accelerate the reduction of indoor humidity.

[0072] Of course, in actual applications, the dehumidification capacity can also be improved by further increasing the frequency of the compressor, but this may cause the compressor to operate at a high frequency, shortening the life of the compressor.

[0073] It should be noted that the temperature of the evaporator can be detected by the evaporator temperature detection module mentioned above.

[0074] In some embodiments, when the indoor fan is controlled to reduce its speed according to a speed adjustment instruction, the method also includes: if it is detected that the indoor ambient humidity has decreased, controlling the operating speed of the indoor fan to increase to the speed before the speed reduction; if it is detected that the indoor ambient humidity has not decreased, when the time when the indoor fan runs at the speed after the speed reduction reaches a second preset time, controlling the operating speed of the indoor fan to increase to a first target speed, wherein the first target speed is greater than the speed before the speed reduction.

[0075] It is understandable that if it is detected that the indoor humidity is reduced, the air conditioner's dehumidification is effective, so the running speed of the indoor fan is increased to the speed before the speed reduction, which can avoid the situation where the indoor temperature is too low due to the high frequency of the compressor. If the running speed of the indoor fan reaches the second preset time according to the speed after Jiangsu, and the indoor humidity has not decreased, it is considered that the user may open the door or window for a long time, and the air conditioner cannot effectively dehumidify the indoor environment. In order to prevent the formation of condensation, the running speed of the indoor fan is increased to a first target speed that is higher than the running speed before the speed reduction.

[0076] In some embodiments, when the air guide strip of the air conditioner is closed, the method further includes: controlling the air conditioner to stop humidity detection and maintain the humidity detection for a third preset time.

[0077] Specifically, when the air guide strip of the air conditioner is closed, the humidity of the return air outlet may change suddenly due to the change of the wind field of the return air outlet, but the indoor environmental humidity does not change. Therefore, the humidity sensor is controlled to stop humidity detection at the third preset time, and then detect the indoor humidity normally.

[0078] In the above embodiment, when the air guide strip of the air conditioner is closed, the humidity of the return air outlet may suddenly change. By controlling the air conditioner to stop humidity detection, misjudgment is avoided.

[0079] In some embodiments, before detecting a sudden change in the indoor ambient humidity, the method further includes: controlling the air conditioner to operate in a target air outlet mode, wherein the target air outlet mode includes at least one of a no wind mode, a soft wind mode, and an anti-direct blowing mode.

[0080] It is understandable that when the air conditioner is working in the no-wind mode, soft-wind mode and anti-direct-blow mode, condensation is easy to form due to the low air volume. When the indoor humidity is high, the air conditioner is more likely to produce condensation. Therefore, when the air conditioner is working in the no-wind mode, soft-wind mode and anti-direct-blow mode, it will be more sensitive to the indoor humidity and the indoor environment needs to be dehumidified in time.

[0081] In some embodiments, when the operating speed of the indoor fan is reduced, the method further includes: controlling the air conditioner to stop humidity detection and maintain a fourth preset time.

[0082] That is to say, when the operating speed of the indoor fan decreases, the change in wind speed will cause disturbance in the return air outlet wind field, thereby affecting the data collected by the humidity sensor. Therefore, the air conditioner is controlled to stop humidity detection within the fourth preset time to avoid misjudgment.

[0083] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods:

[0084] like Figure 3 As shown, the method for controlling indoor humidity by controlling the frequency of the compressor includes the following steps:

[0085] S201, obtaining indoor environmental humidity.

[0086] S202, determine whether the indoor environmental humidity has a sudden change, if the indoor environmental humidity has a sudden change, execute step S203, if the indoor environmental humidity has not a sudden change, return to step S201.

[0087] S203, performing frequency increase control on the compressor according to the humidity difference before and after the sudden change.

[0088] S204, determining whether the indoor environmental humidity has decreased, if the indoor environmental humidity has decreased, executing step S205, if the indoor environmental humidity has not decreased, executing step S206.

[0089] S205, controlling the frequency of the compressor to decrease to the frequency before the frequency increase.

[0090] S206, controlling the compressor to operate at the upgraded frequency for a first preset time.

[0091] S207, controlling the frequency of the compressor to decrease to a first target frequency, wherein the first target frequency is less than the frequency before the frequency increase.

[0092] In the above embodiment, when a sudden change in the indoor humidity is detected, the frequency of the compressor is controlled to increase according to the humidity difference, so that the dehumidification capacity of the air conditioner is enhanced, thereby quickly reducing the humidity of the indoor environment.

[0093] like Figure 4 As shown, the method for controlling indoor humidity by controlling the running speed of the indoor fan includes the following steps:

[0094] S301, obtaining indoor environmental humidity.

[0095] S302, determine whether the indoor environmental humidity has a sudden change, if the indoor environmental humidity has a sudden change, execute step S303, if the indoor environmental humidity has not a sudden change, return to step S301.

[0096] S303, controlling the speed of the indoor fan to decrease according to the humidity difference before and after the sudden change.

[0097] S304, determining whether the indoor environmental humidity has decreased, if the indoor environmental humidity has decreased, executing step S305, if the indoor environmental humidity has not decreased, executing step S306.

[0098] S305, controlling the running speed of the indoor fan to increase to the speed before the speed reduction.

[0099] S306, controlling the indoor fan to run at the reduced speed for a second preset time.

[0100] S307, controlling the operating speed of the indoor fan to increase to a first target speed, wherein the first target speed is greater than the speed before the speed reduction.

[0101] In the above embodiment, when a sudden change in the indoor environmental humidity is detected, the operating speed of the indoor fan is controlled to be reduced according to the humidity difference, so that the dehumidification capacity of the air conditioner is enhanced, thereby quickly reducing the humidity of the indoor environment.

[0102] like Figure 5As shown, the method for controlling indoor humidity by controlling the compressor frequency and the indoor fan operating speed includes the following steps:

[0103] S401, obtaining indoor environmental humidity.

[0104] S402, determine whether the indoor environmental humidity has a sudden change, if the indoor environmental humidity has a sudden change, execute step S403, if the indoor environmental humidity has not a sudden change, return to step S401.

[0105] S403, determine whether the frequency of the compressor reaches the second target frequency, the second target frequency is used to characterize the high-frequency operation of the compressor. If the frequency of the compressor reaches the second target frequency, execute step S404; if the frequency of the compressor does not reach the second target frequency, execute step S405.

[0106] S404, controlling the speed of the indoor fan to decrease.

[0107] S405, determine whether the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold. If the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, execute step S406; if the current indoor temperature is greater than or equal to the sum of the set temperature and the preset temperature threshold, execute step S407.

[0108] S406, controlling the speed of the indoor fan to decrease, and controlling the frequency of the compressor to remain unchanged.

[0109] S407, performing frequency increase control on the compressor and controlling the running speed of the indoor fan to remain unchanged.

[0110] In the above embodiment, when a sudden change in the indoor environmental humidity is detected, if the compressor is in a high-frequency operation state, dehumidification is performed by controlling the indoor fan to slow down, which will not shorten the life of the compressor; if the compressor is not in a high-frequency operation state, the indoor fan is controlled to slow down or the compressor is controlled to increase its frequency according to the current indoor temperature, which can not only improve the dehumidification capacity of the air conditioner, but also improve the cooling effect of the air conditioner, thereby improving the user's comfort.

[0111] In summary, according to the humidity control method of the embodiment of the present invention, when a sudden change in the indoor environment humidity is detected, the frequency of the compressor is controlled to increase and / or the speed of the indoor fan is controlled to decrease according to the humidity difference. Compared with the related art, when the humidity is detected to increase, the problem of condensation is solved first. The frequency increase of the compressor and the speed reduction of the indoor fan enhance the dehumidification capacity of the air conditioner, thereby quickly reducing the humidity of the indoor environment; and after the indoor environment humidity is reduced, the frequency of the compressor is controlled to decrease to the frequency before the frequency increase and / or the speed of the indoor fan is controlled to increase to the speed before the speed reduction, which will not affect the operation of the air conditioner. In addition, when the compressor is running at high frequency, the dehumidification effect is further improved by reducing the speed of the indoor fan, so that the compressor life is shortened due to long-term high-frequency operation of the compressor. When the compressor is not in a high-frequency operation state, and when the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, the dehumidification effect can be improved by reducing the speed of the indoor fan, so that the indoor temperature can be prevented from being too low, thereby improving the user's comfort.

[0112] Corresponding to the above embodiments, an embodiment of the present invention further provides a computer-readable storage medium on which a humidity control program is stored. When the program is executed by a processor, the humidity control method of any of the above embodiments is implemented.

[0113] According to the computer-readable storage medium of an embodiment of the present invention, by executing a computer program of the above-mentioned humidity control method, when a sudden change in the humidity of the indoor environment is detected, the dehumidification effect is improved by increasing the frequency of the compressor and / or reducing the speed of the indoor fan, thereby quickly reducing the humidity of the indoor environment.

[0114] Corresponding to the above embodiment, the embodiment of the present invention further provides an air conditioner. Figure 6 As shown, the air conditioner 100 includes: a memory 110, a processor 120, and a humidity control program stored in the memory 110 and executable on the processor 120. When the processor 120 executes the program, the humidity control method of any of the aforementioned embodiments is implemented.

[0115] According to the air conditioner of the embodiment of the present invention, the computer program of the above-mentioned humidity control method is executed by the processor. When a sudden change in the humidity of the indoor environment is detected, the dehumidification effect is improved by increasing the frequency of the compressor and / or reducing the speed of the indoor fan, thereby quickly reducing the humidity of the indoor environment.

[0116] Corresponding to the above embodiment, the embodiment of the present invention further provides a humidity control device, which is applied to an air conditioner. Figure 7 As shown, the humidity control device includes: a humidity detection module 80 and a control module 90.

[0117] Among them, the humidity detection module 80 is used to determine the humidity difference before and after the mutation when a sudden change in the indoor environmental humidity is detected, wherein the indoor environmental humidity before the mutation is less than the indoor environmental humidity after the mutation; the control module 90 is used to determine at least one of a frequency adjustment instruction and a speed adjustment instruction according to the humidity difference, wherein the frequency adjustment instruction instructs the compressor in the air conditioner to perform frequency increase control, and the speed adjustment instruction is used to instruct the indoor fan in the air conditioner to perform speed reduction control.

[0118] In some embodiments, the control module 90 is also used to: if it is detected that the indoor ambient humidity has decreased, control the frequency of the compressor to be reduced to the frequency before the frequency increase; if it is detected that the indoor ambient humidity has not decreased, when the compressor has been running at the frequency after the frequency increase for a first preset time, control the frequency of the compressor to be reduced to a first target frequency, wherein the first target frequency is less than the frequency before the frequency increase.

[0119] In some embodiments, the control module 90 is also used to: before increasing the frequency of the compressor according to the frequency adjustment instruction, if the frequency of the compressor reaches a second target frequency, then reduce the speed of the indoor fan, wherein the second target frequency is used to characterize the high-frequency operation of the compressor.

[0120] In some embodiments, the control module 90 is also used for: before the compressor is increased in frequency according to the frequency adjustment instruction, if the frequency of the compressor has not reached the second target frequency, then when the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, the indoor fan is reduced in speed and the frequency of the compressor is controlled to remain unchanged, wherein the second target frequency is used to characterize the high-frequency operation of the compressor.

[0121] In some embodiments, the frequency of the compressor after frequency conversion is positively correlated with the humidity difference.

[0122] In some embodiments, the device also includes a determination module (not shown), which is used to determine the dew point temperature based on the current indoor ambient humidity and the current indoor ambient temperature when the compressor operates at the upgraded frequency. The control module 90 is also used to further reduce the speed of the indoor fan when the evaporator temperature of the air conditioner is greater than the dew point temperature.

[0123] In some embodiments, the control module 90 is also used for: when the indoor fan is controlled to reduce its speed according to the speed adjustment instruction, if it is detected that the indoor environmental humidity has decreased, the operating speed of the indoor fan is controlled to increase to the speed before the speed reduction; if it is detected that the indoor environmental humidity has not decreased, when the time when the indoor fan runs at the speed after the speed reduction reaches a second preset time, the operating speed of the indoor fan is controlled to increase to a first target speed, wherein the first target speed is greater than the speed before the speed reduction.

[0124] In some embodiments, the control module 90 is further used to: when the air guide strip of the air conditioner is closed, control the air conditioner to stop humidity detection and maintain the humidity detection for a third preset time.

[0125] In some embodiments, the control module 90 is also used to: before detecting a sudden change in the indoor ambient humidity, control the air conditioner to operate in a target air outlet mode, wherein the target air outlet mode includes at least one of a no wind mode, a soft wind mode, and an anti-direct blowing mode.

[0126] In some embodiments, the control module 90 is further configured to: when the operating speed of the indoor fan is reduced, control the air conditioner to stop humidity detection and maintain the fourth preset time.

[0127] It should be noted that the specific implementation of the humidity detection device in the embodiment of the present invention corresponds one to one with the specific implementation of the humidity detection method in the aforementioned embodiment of the present invention, and will not be described in detail herein.

[0128] According to the humidity control device of the embodiment of the present invention, when the humidity detection module detects a sudden change in the indoor environmental humidity, the control module controls the frequency of the compressor to increase and / or controls the speed of the indoor fan to decrease according to the humidity difference. Compared with the related art, when the humidity increase is detected, the condensation problem is solved first. The increased frequency of the compressor and the reduced speed of the indoor fan enhance the dehumidification capacity of the air conditioner, thereby quickly reducing the humidity of the indoor environment.

[0129] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0130] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0131] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0132] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present invention, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0133] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific implementation situation.

[0134] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A humidity control method, characterized in that: Applied to an air conditioner, the method comprises: When a sudden change in the indoor environmental humidity is detected, a humidity difference before and after the sudden change is determined, wherein the indoor environmental humidity before the sudden change is less than the indoor environmental humidity after the sudden change; At least one of a frequency adjustment instruction and a speed adjustment instruction is determined according to the humidity difference, wherein the frequency adjustment instruction instructs the compressor in the air conditioner to perform frequency increase control, and the speed adjustment instruction is used to instruct the indoor fan in the air conditioner to perform speed reduction control.

2. The method according to claim 1, characterized in that: In the case where the compressor is subjected to frequency increase control according to the frequency adjustment instruction, the method further includes: If it is detected that the indoor environment humidity decreases, controlling the frequency of the compressor to decrease to the frequency before the frequency increase; If it is detected that the indoor ambient humidity has not decreased, then when the compressor runs at the frequency after the frequency increase for a first preset time, the frequency of the compressor is controlled to decrease to a first target frequency, wherein the first target frequency is less than the frequency before the frequency increase.

3. The method according to claim 1, characterized in that Before performing frequency increase control on the compressor according to the frequency adjustment instruction, the method further includes: If the frequency of the compressor reaches a second target frequency, the indoor fan is controlled to reduce its speed, wherein the second target frequency is used to indicate that the compressor operates at a high frequency.

4. The method according to claim 1, characterized in that: Before performing frequency increase control on the compressor according to the frequency adjustment instruction, the method further includes: If the frequency of the compressor does not reach the second target frequency, the indoor fan is controlled to reduce speed and the frequency of the compressor is controlled to remain unchanged when the current indoor temperature is less than the sum of the set temperature and the preset temperature threshold, wherein the second target frequency is used to characterize the high-frequency operation of the compressor.

5. The method according to any one of claims 1 to 4, characterized in that The frequency of the compressor after frequency upgrading is positively correlated with the humidity difference.

6. The method according to claim 5, characterized in that In the case where the compressor operates at the frequency after the frequency is increased, the method further includes: Determine the dew point temperature according to the current indoor ambient humidity and the current indoor ambient temperature; When the evaporator temperature of the air conditioner is greater than the dew point temperature, the rotation speed of the indoor fan is further reduced.

7. The method according to claim 1, characterized in that In the case where the indoor fan is controlled to reduce speed according to the speed adjustment instruction, the method further includes: If it is detected that the indoor ambient humidity decreases, the operating speed of the indoor fan is controlled to increase to the speed before the speed decrease; If it is detected that the indoor ambient humidity has not decreased, then when the time when the indoor fan runs at the speed after speed reduction reaches a second preset time, the running speed of the indoor fan is controlled to increase to a first target speed, wherein the first target speed is greater than the speed before speed reduction.

8. The method according to claim 1, characterized in that When the air guide strip of the air conditioner is closed, the method further comprises: The air conditioner is controlled to stop humidity detection and maintain the humidity detection for a third preset time.

9. The method according to claim 1, characterized in that: Before detecting a sudden change in the indoor environmental humidity, the method further includes: The air conditioner is controlled to operate in a target air outlet mode, wherein the target air outlet mode includes at least one of a no wind mode, a soft wind mode, and an anti-direct blowing mode.

10. The method according to any one of claims 3, 4, 6 and 7, characterized in that When the operating speed of the indoor fan is reduced, the method further includes: The air conditioner is controlled to stop humidity detection and maintain the humidity detection for a fourth preset time.

11. A computer-readable storage medium, characterized in that: A humidity control program is stored thereon, and when the program is executed by a processor, a humidity control method according to any one of claims 1 to 10 is implemented.

12. An air conditioner, characterized in that: include: A memory, a processor, and a humidity control program stored in the memory and executable on the processor, wherein when the processor executes the program, the humidity control method according to any one of claims 1 to 10 is implemented.

13. A humidity control device, characterized in that: Applied to an air conditioner, the device comprises: A humidity detection module is used to determine the humidity difference before and after the mutation when a sudden change in the indoor environment humidity is detected, wherein the indoor environment humidity before the mutation is less than the indoor environment humidity after the mutation; A control module is used to determine at least one of a frequency adjustment instruction and a speed adjustment instruction according to the humidity difference, wherein the frequency adjustment instruction instructs the compressor in the air conditioner to perform frequency increase control, and the speed adjustment instruction is used to instruct the indoor fan in the air conditioner to perform speed reduction control.

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