Air conditioner, frequency control method and device thereof, electronic equipment and storage medium

Abstract

The invention relates to an air conditioner and a frequency control method and device thereof, electronic equipment and a storage medium, and the method comprises the steps that in the operation process of the air conditioner in a refrigeration mode or a heating mode, the indoor environment temperature, the indoor environment humidity and the air outlet air speed are obtained; according to the indoor environment temperature, the indoor environment humidity and the air outlet air speed, the average heat sensation index PMV value in the corresponding refrigeration mode or heating mode is determined; and controlling the operation frequency of a compressor in the air conditioner according to the PMV value. Therefore, the frequency control of the air conditioner running in the refrigerating mode or the heating mode is associated with the somatosensory requirement of the human body, so that the frequency control of the air conditioner is more humanized, and different requirements of the human body on the comfort degree can be met in different use scenes.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioners, and in particular to an air conditioner and a frequency control method, device, electronic device and storage medium thereof. Background Art

[0002] With the development of economy and the improvement of people's living standards, air conditioners are used more and more widely.

[0003] At present, the frequency control of air conditioners is mainly based on fuzzy control or PID (Proportional Integral Derivative) control. Although these frequency control methods of air conditioners can basically meet the user's demand for indoor ambient temperature, they cannot meet the different needs of the human body for comfort in different usage scenarios. Summary of the invention

[0004] The present disclosure provides an air conditioner and a frequency control method, device, electronic device and storage medium thereof.

[0005] According to a first aspect of an embodiment of the present disclosure, a frequency control method for an air conditioner is proposed, which is applied to a controller in the air conditioner, and the method includes: obtaining the indoor ambient temperature, the indoor ambient humidity and the outlet wind speed during the operation of the air conditioner in a cooling mode or a heating mode; determining a mean thermal sensation index PMV (Predicted Mean Vote) value corresponding to the cooling mode or the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the outlet wind speed; and controlling the operating frequency of the compressor in the air conditioner according to the mean thermal sensation index PMV value.

[0006] In one embodiment of the present disclosure, during the operation of the air conditioner in the heating mode, the method further includes:

[0007] Get the thermal resistance of clothing;

[0008] Wherein, determining the average thermal sensation index PMV value in the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed includes:

[0009] The average thermal sensation index PMV value in the heating mode is determined according to the indoor environment temperature, the indoor environment humidity, the air outlet wind speed and the clothing thermal resistance.

[0010] In one embodiment of the present disclosure, before determining the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed, the method further includes:

[0011] Determining whether the air conditioner is in a wind sensing mode;

[0012] In response to the air conditioner turning on the wind sensing mode, modifying the wind speed at the air outlet;

[0013] Wherein, determining the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed includes:

[0014] The average thermal sensation index PMV value corresponding to the cooling mode or the heating mode is determined according to the indoor ambient temperature, the indoor ambient humidity and the corrected air outlet wind speed.

[0015] In one embodiment of the present disclosure, in response to the air conditioner turning on the wind sensing mode, the wind speed at the air outlet is corrected, including:

[0016] Obtaining the wind sense type and wind speed of the air conditioner when the wind sense mode is turned on;

[0017] Determining an adjustment coefficient of the wind speed at the air outlet according to the wind sensation type and the wind gear;

[0018] The wind speed at the air outlet is corrected according to the adjustment coefficient.

[0019] In one embodiment of the present disclosure, before determining the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed, the method further includes:

[0020] Determine whether the absolute value of the temperature difference between the indoor ambient temperature and the target temperature satisfies a set condition; wherein the set condition satisfies ΔT1≤|ΔT|≤ΔT2, wherein ΔT1 is a first set temperature threshold, ΔT is the temperature difference, and ΔT2 is a second set temperature threshold.

[0021] In one embodiment of the present disclosure, controlling the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value includes:

[0022] Get theoretical control frequency and PID control frequency;

[0023] Determine the PMV interval to which the average thermal sensation index PMV value belongs;

[0024] Determining a PMV control frequency corresponding to the cooling mode or the heating mode according to the PMV interval to which the average thermal sensation index PMV value belongs;

[0025] Calculating the sum of the theoretical control frequency, the PID control frequency and the PMV control frequency as the target operating frequency of the compressor in the air conditioner;

[0026] The compressor is controlled to operate at the target operating frequency.

[0027] In one embodiment of the present disclosure, the process of obtaining the indoor environmental humidity includes:

[0028] Determine the temperature range to which the indoor ambient temperature belongs;

[0029] The indoor environment humidity is obtained according to the temperature range.

[0030] In one embodiment of the present disclosure, the process of obtaining the thermal resistance of clothing includes:

[0031] Obtaining the clothing material of the indoor person through millimeter wave radar;

[0032] The thermal resistance of the clothing is obtained according to the material of the clothing.

[0033] According to the second aspect of an embodiment of the present disclosure, a frequency control device for an air conditioner is proposed, which is applied to a controller in the air conditioner, and the device includes: an acquisition module, used to acquire the indoor ambient temperature, indoor ambient humidity and outlet wind speed when the air conditioner is operating in a cooling mode or a heating mode; a determination module, used to determine the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode based on the indoor ambient temperature, the indoor ambient humidity and the outlet wind speed; and a control module, used to control the operating frequency of the compressor in the air conditioner based on the average thermal sensation index PMV value.

[0034] In one embodiment of the present disclosure, when the air conditioner is running in the heating mode, the acquisition module is further used to acquire thermal resistance of clothing;

[0035] Wherein, when the determination module is used to determine the average thermal sensation index PMV value in the heating mode according to the indoor environment temperature, the indoor environment humidity and the outlet wind speed, it includes:

[0036] The average thermal sensation index PMV value in the heating mode is determined according to the indoor environment temperature, the indoor environment humidity, the air outlet wind speed and the clothing thermal resistance.

[0037] In one embodiment of the present disclosure, the above-mentioned device further includes:

[0038] A judging module, used for judging whether the air conditioner is in a wind sensing mode;

[0039] a correction module, for correcting the wind speed at the air outlet in response to the air conditioner turning on the wind sensing mode;

[0040] The determination module is used to determine the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed, including:

[0041] The average thermal sensation index PMV value corresponding to the cooling mode or the heating mode is determined according to the indoor ambient temperature, the indoor ambient humidity and the corrected air outlet wind speed.

[0042] In one embodiment of the present disclosure, the correction module is used to correct the wind speed of the air outlet in response to the air conditioner turning on the wind sensing mode, including:

[0043] Obtaining the wind sense type and wind speed of the air conditioner when the wind sense mode is turned on;

[0044] Determining an adjustment coefficient of the wind speed at the air outlet according to the wind sensation type and the wind gear;

[0045] The wind speed at the air outlet is corrected according to the adjustment coefficient.

[0046] In one embodiment of the present disclosure, before the determination module is used to determine the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the outlet wind speed, it is also used to:

[0047] Determine whether the absolute value of the temperature difference between the indoor ambient temperature and the target temperature satisfies a set condition; wherein the set condition satisfies ΔT1≤|ΔT|≤ΔT2, wherein ΔT1 is a first set temperature threshold, ΔT is the temperature difference, and ΔT2 is a second set temperature threshold.

[0048] In one embodiment of the present disclosure, when the control module is used to control the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value, it includes:

[0049] Get theoretical control frequency and PID control frequency;

[0050] Determine the PMV interval to which the average thermal sensation index PMV value belongs;

[0051] Determining a PMV control frequency corresponding to the cooling mode or the heating mode according to the PMV interval to which the average thermal sensation index PMV value belongs;

[0052] Calculating the sum of the theoretical control frequency, the PID control frequency and the PMV control frequency as the target operating frequency of the compressor in the air conditioner;

[0053] The compressor is controlled to operate at the target operating frequency.

[0054] In one embodiment of the present disclosure, when the acquisition module is used to acquire the indoor environmental humidity, it includes:

[0055] Determine the temperature range to which the indoor ambient temperature belongs;

[0056] The indoor environment humidity is obtained according to the temperature range.

[0057] In one embodiment of the present disclosure, when the acquisition module is used to acquire the thermal resistance of clothing, it includes:

[0058] Obtaining the clothing material of the indoor person through millimeter wave radar;

[0059] The thermal resistance of the clothing is obtained according to the material of the clothing.

[0060] According to a third aspect of an embodiment of the present disclosure, an electronic device is proposed, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the frequency control method of the air conditioner as described above.

[0061] According to a fourth aspect of an embodiment of the present disclosure, an air conditioner is provided, which includes the above-mentioned electronic device.

[0062] According to a fifth aspect of an embodiment of the present disclosure, a computer-readable storage medium is proposed. When instructions in the storage medium are executed by a processor, the processor is enabled to execute the above-mentioned frequency control method of the air conditioner.

[0063] The technical solution provided by the embodiments of the present disclosure brings at least the following beneficial effects:

[0064] When the air conditioner is running in cooling mode or heating mode, the controller in the air conditioner obtains the indoor environment temperature, indoor environment humidity and outlet wind speed, and determines the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor environment temperature, indoor environment humidity and outlet wind speed, and then controls the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value. Therefore, the present disclosure associates the frequency control of the air conditioner when it is running in cooling mode or heating mode with the body's somatosensory needs, making the frequency control of the air conditioner more humane, thereby meeting the different needs of the human body for comfort in different usage scenarios.

[0065] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0067] Figure 1 is a flow chart of a frequency control method for an air conditioner according to an embodiment of the present disclosure;

[0068] Figure 2 is a flow chart of a frequency control method of an air conditioner according to another embodiment of the present disclosure;

[0069] Figure 3 is a block diagram of a frequency control device for an air conditioner according to an embodiment of the present disclosure;

[0070] Figure 4 It is a structural block diagram of an electronic device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0071] In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

[0072] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0073] The following describes a frequency control method for an air conditioner, a frequency control device for an air conditioner, an electronic device, an air conditioner, and a computer-readable storage medium according to embodiments of the present disclosure with reference to the accompanying drawings.

[0074] Figure 1 is a flow chart of a frequency control method for an air conditioner according to an embodiment of the present disclosure.

[0075] It should be noted that the frequency control method of the air conditioner in the embodiment of the present disclosure is executed by a controller in the air conditioner, or by software in the controller in the air conditioner. The following description is made by taking the controller in the air conditioner as an example.

[0076] like Figure 1 As shown, the frequency control method of the air conditioner according to the embodiment of the present disclosure includes:

[0077] S101, when the air conditioner is operating in a cooling mode or a heating mode, obtaining indoor ambient temperature, indoor ambient humidity and outlet wind speed.

[0078] In this step, the indoor ambient temperature can be obtained through a set temperature sensor. The temperature sensor can be a temperature sensor set on the air conditioner or a temperature sensor set indoors. If the indoor ambient temperature is collected through the temperature sensor set indoors, the indoor ambient temperature collected by the ambient temperature sensor set indoors needs to be sent to the controller in the air conditioner through wireless communication.

[0079] In this step, the indoor environmental humidity can be obtained by a set humidity sensor. The humidity sensor can be a humidity sensor set on the air conditioner or a temperature sensor set indoors. If the indoor environmental humidity is collected by the humidity sensor set indoors, the indoor environmental humidity collected by the humidity sensor set indoors needs to be sent to the controller in the air conditioner by wireless means.

[0080] If there is no humidity sensor on the air conditioner or in the room, or the humidity sensors on the air conditioner and in the room are both faulty, the temperature range to which the indoor ambient temperature belongs can be determined first, and then the indoor ambient humidity can be obtained based on the temperature range to which the indoor ambient temperature belongs, through the functional relationship between the temperature range and the indoor ambient humidity, or by looking up a mapping table between different temperature ranges and the indoor ambient humidity (as shown in Table 1 below).

[0081] Table 1

[0082] <![CDATA[T 内环 ]]> <![CDATA[T 内环 <18]]> <![CDATA[18≤T 内环 <21]]> <![CDATA[21≤T 内环 <24]]> <![CDATA[24≤T 内环 <26]]> <![CDATA[26≤T 内环 <29]]> <![CDATA[29≤T 内环 ]]> RH <![CDATA[RH1]]> <![CDATA[RH2]]> <![CDATA[RH3]]> <![CDATA[RH4]]> <![CDATA[RH5]]> <![CDATA[RH6]]>

[0083] Among them, T in Table 1 内环 is the indoor ambient temperature, and RH is the indoor ambient humidity. 内环 <18℃, RH=RH1; when 18℃≤T 内环 When 21℃≤T 内环 <24℃, RH=RH3; when 24℃≤T 内环 <26℃, RH=RH4; when 26℃≤T 内环When <29℃, RH=RH5; when T 内环 When ≥29℃, RH=RH6.

[0084] It should be noted that Table 1 is only a specific example. Of course, in other embodiments of the present disclosure, the indoor ambient temperature range may be divided differently according to actual needs.

[0085] In this step, the wind speed at the air outlet can be obtained by a wind speed sensor arranged at the air outlet of the indoor unit.

[0086] If a wind speed sensor is not provided at the air outlet of the air conditioner, when the air conditioner is running in cooling mode or heating mode, the wind speed at the air outlet is selected according to the following Table 2 depending on the set wind speed.

[0087] Table 2

[0088] Windshield 7 gears 6 gears 5 gears 4 gears 3rd gear 2nd gear 1st gear <![CDATA[V c ]]> <![CDATA[V c7 ]]> <![CDATA[V c6 ]]> <![CDATA[V c5 ]]> <![CDATA[V c4 ]]> <![CDATA[V c3 ]]> <![CDATA[V c2 ]]> <![CDATA[V c1 ]]> <![CDATA[V h ]]> <![CDATA[V h7 ]]> <![CDATA[V h6 ]]> <![CDATA[V h5 ]]> <![CDATA[V h4 ]]> <![CDATA[V h3 ]]> <![CDATA[V h2 ]]> <![CDATA[V h1 ]]>

[0089] Among them, V in Table 2 c V is the wind speed at the air outlet when the air conditioner is running in cooling mode; h is the outlet wind speed when the air conditioner is running in heating mode. For example, when the air conditioner is set to level 1, V c =V c1 , V h =V h1 ; When the air conditioner is set to wind speed 2, V c =V c2 , V h =V h2 ; When the air conditioner is set to level 3, V c =V c3 , V h =V h3 ; When the air conditioner is set to level 4, V c =V c4 , V h =V h4 ; When the air conditioner is set to level 5, V c =V c5 , V h =V h5 ; When the air conditioner is set to level 6, V c =V c6 , V h =V h6 ; When the air conditioner is set to level 7, V c =V c7 , V h =V h7 .

[0090] It should be noted that Table 2 is only a specific example. Of course, in other embodiments of the present disclosure, the windshield may be divided differently according to actual needs.

[0091] In an embodiment of the present disclosure, if the air conditioner is operated in a heating mode, the clothing thermal resistance needs to be obtained. As a process of obtaining clothing thermal resistance, the clothing thermal resistance includes: first obtaining the clothing material of the indoor person through a millimeter wave radar, and then obtaining the clothing thermal resistance by searching a mapping relationship table between clothing material and clothing thermal resistance (as shown in Table 3 below) according to the clothing material.

[0092] Table 3

[0093] Clothing Material Thick coat sweater shirt f <![CDATA[f1]]> <![CDATA[f2]]> <![CDATA[f3]]>

[0094] Among them, f in Table 3 is the thermal resistance of clothing. For example, when the clothing material is a thick coat, f = f1; when the clothing material is a sweater, f = f2; when the clothing material is a shirt, f = f3. It should be noted that if there is no millimeter wave radar in the air conditioner or the millimeter wave radar fails, f takes the default value f3.

[0095] It should be noted that Table 3 is only a specific example. Of course, in other embodiments of the present disclosure, clothing materials can be divided more finely according to actual needs.

[0096] S102, determining an average thermal sensation index PMV value in a corresponding cooling mode or heating mode according to the indoor ambient temperature, the indoor ambient humidity and the wind speed at the air outlet.

[0097] In this step, if the air conditioner is operated in cooling mode, the average thermal sensation index PMV value in the corresponding cooling mode or heating mode is determined according to the indoor ambient temperature, indoor ambient humidity and outlet wind speed. For example, the specific formula for calculating the PMV value is as follows:

[0098] PMV=a×T 内环 +b×RH-c×V c +d (1)

[0099] Among them, T 内环 is the indoor ambient temperature, RH is the indoor ambient humidity, V c is the air outlet wind speed when the air conditioner is running in cooling mode, and a, b, c, and d are fixed constants.

[0100] If the air conditioner is operated in heating mode, the average thermal sensation index PMV value in heating mode is determined according to the indoor ambient temperature, indoor ambient humidity, air outlet wind speed and clothing thermal resistance. For example, the specific formula for calculating the PMV value is as follows (2):

[0101] PMV=a×T内环 +b×RH-c×V h +f+d (2)

[0102] Among them, T 内环 is the indoor ambient temperature, RH is the indoor ambient humidity, V h is the outlet wind speed when the air conditioner is running in heating mode, a, b, c, d are fixed constants, and f is the thermal resistance of the clothing.

[0103] S103, controlling the operating frequency of the compressor in the air conditioner according to the mean thermal perception index PMV value.

[0104] In this step, after the average thermal sensation index PMV value in the cooling mode or the heating mode is obtained in step S102, it is necessary to determine the PWM interval to which the average thermal sensation index PMV value belongs. For example, a mapping table between different PWM intervals and PWM control frequencies in the corresponding cooling mode and heating mode can be obtained in advance (as shown in Table 4), and then the PMV control frequency ΔF in the corresponding cooling mode or heating mode can be determined by looking up the table according to the PWM interval to which the average thermal sensation index PMV value belongs. PMV控制频率 , the ΔF PMV控制频率 It can also be called the correction frequency, that is, the frequency value for correcting the theoretical control frequency of the compressor.

[0105] Table 4

[0106] PMV interval ＜-3 [-3,-2) [-2,-1) [-1,1] (1,2] (2,3] ＞3 <![CDATA[ΔF c ]]> 0 <![CDATA[ΔF c1 ]]> <![CDATA[ΔF c2 ]]> <![CDATA[ΔF c3 ]]> <![CDATA[ΔF c4 ]]> <![CDATA[ΔF c5 ]]> 0 <![CDATA[ΔF h ]]> 0 <![CDATA[ΔF h1 ]]> <![CDATA[ΔF h2 ]]> <![CDATA[ΔF h3 ]]> <![CDATA[ΔF h4 ]]> <![CDATA[ΔF h5 ]]> 0

[0107] Where, ΔF c is the PMV control frequency in cooling mode, ΔF h is the PMV control frequency in heating mode. For example, when PMV is in the (-∞, -3) range, ΔF c =0, ΔF h =0; when PMV is in the interval [-3, -2), ΔF c =ΔF c1 , ΔF h =ΔF h1 ; When PMV is in the interval [-2, -1), ΔF c =ΔF c2 , ΔF h =ΔF h2 ; When PMV is in the interval [-1, 1], ΔF c =ΔF c3 , ΔF h =ΔF h3 ; When PMV is in the interval [1, 2], ΔF c =ΔF c4 , ΔF h =ΔFh4 ; When PMV is in the interval (2, 3], ΔF c =ΔF c5 , ΔF h =ΔF h5 ; When PMV is in the interval (3, +∞), ΔF c =0, ΔF h =0.

[0108] It should be noted that Table 4 is only a specific example. Of course, in other embodiments of the present disclosure, the PMV intervals may be divided more finely according to actual needs.

[0109] After obtaining the PMV control frequency ΔF PMV控制频率 In the process, it is also necessary to obtain the theoretical control frequency F of the compressor 理论控制频率 and PID control frequency ΔF PID控制频率 (ΔF PID控制频率 It can also be called the correction frequency, which is the correction of F 理论控制频率 The corrected frequency value) is calculated and the theoretical control frequency F is calculated. 理论控制频率 ,PID control frequency ΔF PID控制频率 and PMV control frequency ΔF PMV控制频率 The sum of the three is used as the target operating frequency of the compressor in the air conditioner, as shown in the following formula (3), and the compressor is controlled to operate at the target operating frequency.

[0110] F 目标运行频率 =F 理论控制频率 +ΔF PID控制频率 +ΔF PMV控制频率 (3)

[0111] It should be noted that, usually when the air conditioner is just turned on, the indoor ambient temperature and the target temperature are quite different. For example, the absolute value of the temperature difference between the indoor ambient temperature and the target temperature |ΔT|>ΔT2, so the frequency F can be directly controlled according to the calculation theory. 理论控制频率 and PID control frequency ΔF PID控制频率The target operating frequency of the compressor in the air conditioner is calculated, and the compressor is controlled to operate at the target operating frequency currently calculated. However, as the temperature difference between the indoor ambient temperature and the target temperature gradually decreases, the user's comfort requirements will become higher. For this reason, the present disclosure can determine whether the absolute value of the temperature difference between the indoor ambient temperature and the target temperature meets the set condition before determining the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed; wherein the set condition satisfies ΔT1≤|ΔT|≤ΔT2, wherein ΔT1 is the first set temperature threshold value such as 0°C, ΔT is the temperature difference value, and ΔT2 is the second set temperature threshold value such as 1°C, and when it is determined that the absolute value of the temperature difference between the indoor ambient temperature and the target temperature |ΔT| satisfies ΔT1≤|ΔT|≤ΔT2, then the average thermal sensation index PMV value in the corresponding cooling mode or heating mode is determined according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed, and the operating frequency of the compressor in the air conditioner is controlled according to the average thermal sensation index PMV value.

[0112] It should be noted that the frequency control method of the air conditioner disclosed in the present invention may be to obtain the average thermal sensation index PMV value in real time, or to obtain the average thermal sensation index PMV value once every set time, and then control the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value. The specific method is not limited in the disclosed embodiments.

[0113] Therefore, the present invention selects a corresponding correction frequency according to the average thermal sensation index PMV value when the air conditioner is operating in cooling mode or heating mode. When the air conditioner is operating in cooling mode or heating mode, on the basis of PID control, a frequency correction based on PMV is performed. That is, the frequency control of the air conditioner when it is operating in cooling mode or heating mode is associated with the physical needs of the human body. In this way, the frequency control can be closer to the human comfort experience and the indoor environment temperature control can be more humane, thereby meeting the different needs of the human body for comfort in different usage scenarios.

[0114] Figure 2 is a flow chart of a frequency control method for an air conditioner according to an embodiment of the present disclosure.

[0115] like Figure 2 As shown, the frequency control method of the air conditioner according to the embodiment of the present disclosure includes:

[0116] S201, when the air conditioner is operating in a cooling mode or a heating mode, obtaining indoor ambient temperature, indoor ambient humidity and outlet wind speed.

[0117] It should be noted that the implementation process of step S201 can refer to the content described in the above step S101, and the details will not be repeated here.

[0118] S202, determining whether the air conditioner is in wind sensing mode.

[0119] S203, in response to the air conditioner turning on the wind sensing mode, correcting the wind speed at the air outlet.

[0120] In this step, when it is determined that the air conditioner is turned on in the wind sense mode, the wind sense type and wind gear of the air conditioner in the wind sense mode are first obtained, and then the adjustment coefficient of the air outlet wind speed is determined according to the wind sense type and wind gear, and the air outlet wind speed is corrected according to the adjustment coefficient to obtain the corrected air outlet wind speed. In order to facilitate the acquisition of the corrected air outlet wind speed, a mapping table between the wind sense type and wind gear and the corrected air outlet wind speed can be obtained, as shown in Table 5 below.

[0121] Table 5

[0122]

[0123]

[0124] The wind feeling types include sky curtain wind, carpet wind, surround wind and soft wind. Vc' is the corrected wind speed at the air outlet in cooling mode, Vh' is the corrected wind speed at the air outlet in heating mode, and K t1 , K t2 , K t3 , K d1 , K d2 , K d3 , K h1 , K h2 , K h3 , K r1 , K r2 , K r3 For example, when the air conditioner is running in cooling mode, if it is determined that the air conditioner has turned on the wind sense mode, the wind sense type obtained is skylight wind, and the wind speed is 1 to 3, then the corrected air outlet wind speed Vc' = K t3 *V c When the air conditioner is running in heating mode, if it is determined that the air conditioner is turned on the wind sense mode, the wind sense type obtained is surround wind, and the wind speed is 6-7, then the corrected outlet wind speed Vh'=K h3 *V h .

[0125] It should be noted that Table 5 is only a specific example. Of course, in other embodiments of the present disclosure, the wind feeling types and wind speeds may be divided more finely according to actual needs.

[0126] S204, determining an average thermal sensation index PMV value in a corresponding cooling mode or heating mode according to the indoor ambient temperature, the indoor ambient humidity and the corrected air outlet wind speed.

[0127] S205, controlling the operating frequency of the compressor in the air conditioner according to the mean thermal perception index PMV value.

[0128] It should be noted that the implementation process of step S204 and step S205 can refer to the contents described in the above step S102 and step S103, and the details will not be repeated here.

[0129] Therefore, the present invention can also determine whether the wind sensing mode of the air conditioner is turned on, and when the wind sensing mode is turned on, correct the air outlet wind speed, and determine the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor ambient temperature, indoor ambient humidity and the corrected air outlet wind speed, and control the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value, so that the frequency control can be closer to the human comfort experience, and the indoor environment temperature control can be more humanized, thereby further meeting the different needs of the human body for comfort in different usage scenarios.

[0130] In summary, in the frequency control method of the air conditioner of the embodiment of the present disclosure, the controller in the air conditioner obtains the indoor ambient temperature, indoor ambient humidity and outlet wind speed when the air conditioner is running in cooling mode or heating mode, and determines the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor ambient temperature, indoor ambient humidity and outlet wind speed, and then controls the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value. Therefore, the present disclosure associates the frequency control of the air conditioner when it is running in cooling mode or heating mode with the body's somatosensory needs, making the frequency control of the air conditioner more humane, thereby meeting the different needs of the human body for comfort in different usage scenarios.

[0131] Figure 3 4 is a block diagram of a frequency control device for an air conditioner according to an embodiment of the present disclosure.

[0132] like Figure 3 As shown, the frequency control device 300 of an air conditioner according to the embodiment of the present disclosure may be applied to a controller in an air conditioner. The frequency control device 300 of an air conditioner may include: an acquisition module 310 , a determination module 320 and a control module 330 .

[0133] The acquisition module 310 is used to acquire the indoor environment temperature, indoor environment humidity and outlet wind speed when the air conditioner is running in cooling mode or heating mode. The determination module 320 is used to determine the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor environment temperature, indoor environment humidity and outlet wind speed. The control module 330 is used to control the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value.

[0134] In one embodiment of the present disclosure, when the air conditioner is running in the heating mode, the acquisition module 310 is further used to acquire the thermal resistance of the clothing;

[0135] The determination module 320 is used to determine the average thermal sensation index PMV value in the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed, including:

[0136] The average thermal sensation index PMV value in heating mode is determined according to the indoor ambient temperature, indoor ambient humidity, air outlet wind speed and clothing thermal resistance.

[0137] In one embodiment of the present disclosure, the above-mentioned device further includes:

[0138] A judgment module, used to judge whether the air conditioner is turned on the wind sensing mode;

[0139] A correction module, for correcting the wind speed at the air outlet in response to the air conditioner turning on the wind sensing mode;

[0140] The determination module 320 is used to determine the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed, including:

[0141] According to the indoor ambient temperature, indoor ambient humidity and the corrected air outlet wind speed, the average thermal sensation index PMV value in the corresponding cooling mode or heating mode is determined.

[0142] In one embodiment of the present disclosure, the correction module is used to correct the wind speed of the air outlet in response to the air conditioner turning on the wind sensing mode, including:

[0143] Get the wind type and wind speed of the air conditioner in wind mode;

[0144] Determine the adjustment coefficient of the outlet wind speed according to the wind feeling type and wind speed;

[0145] According to the adjustment coefficient, the wind speed at the air outlet is corrected.

[0146] In one embodiment of the present disclosure, the determination module 320 is used to determine the average thermal sensation index PMV value in the corresponding cooling mode or heating mode according to the indoor ambient temperature, the indoor ambient humidity and the outlet wind speed, and is also used to:

[0147] Determine whether the temperature difference between the indoor environment temperature and the set temperature satisfies the set condition; wherein the set condition satisfies ΔT1≤ΔT≤ΔT2, wherein ΔT1 is the first set temperature threshold, ΔT is the temperature difference, and ΔT2 is the second set temperature threshold.

[0148] In one embodiment of the present disclosure, the control module 330 is used to control the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value, including:

[0149] Get theoretical control frequency and PID control frequency;

[0150] Determine the PMV interval to which the average thermal sensation index PMV value belongs;

[0151] According to the PMV interval to which the average thermal sensation index PMV value belongs, the PMV control frequency in the corresponding cooling mode or heating mode is determined;

[0152] Calculate the sum of the theoretical control frequency, PID control frequency and PMV control frequency as the target operating frequency of the compressor in the air conditioner;

[0153] Control the compressor to operate at the target operating frequency.

[0154] In one embodiment of the present disclosure, when the acquisition module 310 is used to acquire the indoor environmental humidity, it includes:

[0155] Determine the temperature range to which the indoor ambient temperature belongs;

[0156] Get the indoor humidity according to the temperature range.

[0157] In one embodiment of the present disclosure, when the acquisition module 310 is used to acquire the thermal resistance of clothing, it includes:

[0158] Use millimeter-wave radar to obtain the clothing material of people indoors;

[0159] Get the thermal resistance of clothing based on the clothing material.

[0160] It should be noted that for details not disclosed in the frequency control device of the air conditioner in the embodiment of the present disclosure, please refer to the details disclosed in the frequency control method of the air conditioner in the embodiment of the present disclosure, and the details will not be repeated here.

[0161] According to the frequency control device of the air conditioner of the embodiment of the present disclosure, the controller in the air conditioner obtains the indoor environment temperature, indoor environment humidity and outlet wind speed through the acquisition module when the air conditioner is running in the cooling mode or the heating mode, and determines the average thermal sensation index PMV value in the corresponding cooling mode or the heating mode according to the indoor environment temperature, indoor environment humidity and the outlet wind speed through the determination module, and then controls the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value through the control module. Therefore, the present disclosure associates the frequency control of the air conditioner when it is running in the cooling mode or the heating mode with the body's somatosensory needs, making the frequency control of the air conditioner more humane, thereby meeting the different needs of the human body for comfort in different usage scenarios.

[0162] In order to implement the above embodiment, the present disclosure also proposes an electronic device, including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the above frequency control method of the air conditioner.

[0163] In order to implement the above embodiments, the present disclosure also proposes an air conditioner, comprising the above electronic device.

[0164] In order to implement the above embodiments, the present disclosure also proposes a computer-readable storage medium.

[0165] When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device can execute the above frequency control method for the air conditioner.

[0166] In order to implement the above embodiments, the present disclosure also provides a computer program product.

[0167] When the computer program product is executed by a processor of an electronic device, the electronic device can execute the above-mentioned frequency control method of the air conditioner.

[0168] like Figure 4 As shown, the electronic device 400 includes a processor 41, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 42 or a program loaded from a memory 46 to a random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 400 are also stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other via a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0169] The following components are connected to the I / O interface 45: a memory 46 including a hard disk, etc.; and a communication part 47 including a network interface card such as a local area network (LAN) card, a modem, etc., and the communication part 47 performs communication processing via a network such as the Internet; a drive 48 is also connected to the I / O interface 45 as needed.

[0170] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 47. When the computer program is executed by the processor 41, the above-mentioned functions defined in the method of the present disclosure are executed.

[0171] In an exemplary embodiment, a storage medium including instructions is also provided, such as a memory including instructions, and the instructions can be executed by the processor 41 of the electronic device 400 to complete the above method. Optionally, the storage medium can be a computer-readable storage medium, for example, the computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0172] In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, apparatus, or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0173] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0174] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A frequency control method for an air conditioner, characterized in that: The controller is applied to an air conditioner, and the method comprises the following steps: When the air conditioner is running in cooling mode or heating mode, the indoor ambient temperature, indoor ambient humidity and outlet wind speed are obtained; Determine the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed; The operating frequency of the compressor in the air conditioner is controlled according to the mean thermal sensation index PMV value.

2. The method according to claim 1, characterized in that: During the operation of the air conditioner in the heating mode, the method further includes: Get the thermal resistance of clothing; Wherein, determining the average thermal sensation index PMV value in the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed includes: The average thermal sensation index PMV value in the heating mode is determined according to the indoor environment temperature, the indoor environment humidity, the air outlet wind speed and the clothing thermal resistance.

3. The method according to claim 1, characterized in that: Before determining the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed, the method further includes: Determining whether the air conditioner is in a wind sensing mode; In response to the air conditioner turning on the wind sensing mode, modifying the wind speed at the air outlet; Wherein, determining the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed includes: The average thermal sensation index PMV value corresponding to the cooling mode or the heating mode is determined according to the indoor ambient temperature, the indoor ambient humidity and the corrected air outlet wind speed.

4. The method according to claim 3, characterized in that In response to the air conditioner turning on the wind sensing mode, the wind speed at the air outlet is corrected, including: Obtaining the wind sense type and wind speed of the air conditioner when the wind sense mode is turned on; Determining an adjustment coefficient of the wind speed at the air outlet according to the wind sensation type and the wind gear; The wind speed at the air outlet is corrected according to the adjustment coefficient.

5. The method according to claim 1, characterized in that Before determining the average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor environment temperature, the indoor environment humidity and the air outlet wind speed, the method further includes: Determine whether the absolute value of the temperature difference between the indoor ambient temperature and the target temperature satisfies a set condition; wherein the set condition satisfies ΔT1≤|ΔT|≤ΔT2, wherein ΔT1 is a first set temperature threshold, ΔT is the temperature difference, and ΔT2 is a second set temperature threshold.

6. The method according to claim 1, characterized in that The controlling of the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value comprises: Get theoretical control frequency and PID control frequency; Determine the PMV interval to which the average thermal sensation index PMV value belongs; Determining a PMV control frequency corresponding to the cooling mode or the heating mode according to the PMV interval to which the average thermal sensation index PMV value belongs; Calculating the sum of the theoretical control frequency, the PID control frequency and the PMV control frequency as the target operating frequency of the compressor in the air conditioner; The compressor is controlled to operate at the target operating frequency.

7. The method according to claim 1, characterized in that The process of obtaining the indoor environmental humidity includes: Determine the temperature range to which the indoor ambient temperature belongs; The indoor environment humidity is obtained according to the temperature range.

8. The method according to claim 2, characterized in that: The process of obtaining the thermal resistance of clothing includes: Obtaining the clothing material of the indoor person through millimeter wave radar; The thermal resistance of the clothing is obtained according to the material of the clothing.

9. A frequency control device for an air conditioner, characterized in that: The frequency control method of an air conditioner according to any one of claims 1 to 8 is applied to a controller in the air conditioner, and the device comprises: An acquisition module, used to acquire indoor ambient temperature, indoor ambient humidity and outlet wind speed when the air conditioner is running in cooling mode or heating mode; A determination module, configured to determine an average thermal sensation index PMV value corresponding to the cooling mode or the heating mode according to the indoor ambient temperature, the indoor ambient humidity and the air outlet wind speed; The control module is used to control the operating frequency of the compressor in the air conditioner according to the average thermal sensation index PMV value.

10. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instruction to implement the frequency control method of the air conditioner according to any one of claims 1-8.

11. An air conditioner, characterized in that: include: The electronic device as claimed in claim 10.

12. A computer-readable storage medium, when instructions in the storage medium are executed by a processor, enables the processor to execute the frequency control method of the air conditioner according to any one of claims 1 to 8.

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