Air conditioner return air humidity compensation control method, operation control device and air conditioner

Abstract

This invention discloses a return air humidity compensation control method, an operation control device, and an air conditioner. The air conditioner includes a humidity sensor for measuring the humidity of indoor return air. The method includes: in heating mode, acquiring the indoor fan speed and the humidity measurement value of the humidity sensor; obtaining a humidity compensation value based on the indoor fan speed; and adding the humidity compensation value to the humidity measurement value to obtain the current humidity value. In heating mode, by acquiring the indoor fan speed and obtaining the humidity compensation value based on it (i.e., the determination of the humidity compensation value takes into account the influence of the indoor fan speed), and then adding the humidity compensation value to the humidity measurement value to obtain the current humidity value, the distortion in humidity detection caused by uneven air heating leading to stratification is reduced, thereby improving the accuracy of the air conditioner in detecting the relative humidity of indoor areas.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly to a return air humidity compensation control method, operation control device and air conditioner of air conditioner. BACKGROUND

[0002] At present, when the indoor unit of the air conditioner tests the humidity of the indoor area, the humidity sensor is generally arranged at the return air box, and the installation height of the return air box is generally high, for example, is installed in the ceiling, so that the height of the humidity measurement position is obviously higher than the indoor personnel activity area. When the air conditioner operates in the heating mode, the return air temperature is high and the relative humidity is low due to the influence of the heated air density, so the relative humidity collected by the humidity sensor of the indoor unit needs to be compensated and corrected before being transmitted to the controller of the air conditioner. One of the commonly used compensation methods at present is to correct the humidity sensor measurement value by using a fixed compensation value, but there is a problem of large error and insufficient precision. In addition, the humidity detected by the relative humidity sensor of the wall-mounted installation line controller is also used to replace the measurement parameter of the return air relative humidity sensor of the unit, but the detected relative humidity is often greatly deviated due to the influence of the heat of the line controller electronic device and the narrow space of the line controller, resulting in insufficient detection precision. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art, and provides a return air humidity compensation control method, operation control device and air conditioner of air conditioner, which can improve the relative humidity detection precision of the air conditioner on the indoor area.

[0004] In a first aspect, the present application provides a return air humidity compensation control method of air conditioner, the air conditioner comprising a humidity sensor for measuring the humidity of indoor return air; the method comprising:

[0005] In the heating mode, the speed of the indoor fan and the humidity measurement value of the humidity sensor are obtained;

[0006] A humidity compensation value is obtained according to the speed of the indoor fan, and the current humidity value is obtained by adding the humidity compensation value to the humidity measurement value.

[0007] The return air humidity compensation control method of air conditioner provided by the present application has at least the following beneficial effects: in the heating mode, the speed of the indoor fan is obtained, and a humidity compensation value is obtained according to the speed of the indoor fan, that is, the determination of the humidity compensation value considers the influence of the speed of the indoor fan, and then the current humidity value is obtained by adding the humidity compensation value to the humidity measurement value, which reduces the humidity detection distortion caused by the uneven heating of air and the stratification, and improves the relative humidity detection precision of the air conditioner on the indoor area.

[0008] According to some embodiments of the present invention, the return air humidity compensation control method calculates the humidity compensation value using the following formula:

[0009] Hx=A*Fan 2 +B*Fan+C

[0010] Where: Hx is the humidity compensation value; Fan is the internal fan speed, which is expressed as a percentage; A, B, and C are constants.

[0011] In this embodiment, when A is not zero, the humidity compensation value Hx is calculated as a quadratic function of the internal fan speed Fan; when A is zero and B is not zero, the humidity compensation value Hx is calculated as a linear function of the internal fan speed Fan.

[0012] According to some embodiments of the present invention, the return air humidity compensation control method wherein A or B is zero.

[0013] In this embodiment, when A is zero, it is equivalent to using a linear function of the internal fan speed Fan, Hx = B * Fan + C, to calculate the humidity compensation value Hx; when B is zero, it is equivalent to using a quadratic function of the same degree, Hx = A * Fan, where the first term is zero. 2 The humidity compensation value Hx is calculated using +C. The values ​​of the constants will vary slightly depending on the calculation formula used.

[0014] According to some embodiments of the present invention, the return air humidity compensation control method includes a humidity compensation value ranging from [D, E], where D and E are constants.

[0015] When the obtained humidity compensation value is less than D, the humidity compensation value is set to D;

[0016] When the obtained humidity compensation value is greater than E, the humidity compensation value is set to E.

[0017] In this embodiment, by setting a range for the humidity compensation value, when the calculated humidity compensation value is greater than the upper limit E of the range, the humidity compensation value is set to the upper limit E; when the calculated humidity compensation value is less than the lower limit D of the range, the humidity compensation value is set to the lower limit D. This limits the calculated humidity compensation value, preventing significant fluctuations in relative humidity caused by compensation. In some embodiments, the humidity compensation value range is [-5%, 5%], meaning the range for humidity compensation of the measured humidity value does not exceed 5%.

[0018] According to some embodiments of the present invention, the return air humidity compensation control method controls the humidity compensation value to remain at zero during a first preset time period when the heating mode is turned on.

[0019] In this embodiment, since the indoor air humidity is relatively uniform for a period of time immediately after the heating mode is activated, without any stratification, the humidity compensation value is kept at zero during this period, meaning no humidity compensation is required. After the heating mode has been activated for a while, the density of the blown hot air is low. Due to the influence of the hot air density, the return air temperature is higher, and the relative humidity is lower. Therefore, it is necessary to compensate and correct the relative humidity collected by the indoor unit's humidity sensor before transmitting it to the air conditioner's controller.

[0020] According to some embodiments of the present invention, the return air humidity compensation control method is provided in which, during the heating mode, the internal fan speed and the humidity measurement value are reacquired every second preset time interval, and the humidity compensation value and the current humidity value are recalculated.

[0021] In this embodiment, since the air conditioner is always running in heating mode, the humidity in the indoor area is constantly changing. Every second preset time interval, the indoor fan speed and humidity measurement values ​​are re-acquired, thereby updating the humidity compensation value and the current humidity value. This allows the air conditioner controller to obtain the latest current humidity value every second preset time interval, so that the air conditioner's operating status can be adjusted according to the latest current humidity value.

[0022] According to some embodiments of the present invention, the return air humidity compensation control method controls the humidity compensation value to remain at the last value for a third preset time period when the indoor unit is turned off, and controls the humidity compensation value to be zero after the third preset time period.

[0023] In this embodiment, after the indoor unit is turned off, the indoor fan speed will drop to 0. If the humidity compensation value and the current humidity value are updated directly according to the indoor fan speed at this time, the current humidity value will fluctuate significantly. For air conditioners that always display the current humidity value on a screen or can be viewed via a mobile terminal, users may perceive this significant fluctuation as abnormal. However, in reality, the humidity in the indoor area does not fluctuate significantly for a period of time after the indoor unit is turned off. Therefore, by keeping the humidity compensation value at the last value for a third preset time period, the possibility of significant fluctuations in the current humidity value can be eliminated. After the third preset time period, the indoor air gradually becomes more uniform, and air stratification no longer occurs. The humidity measurement value obtained from the humidity sensor also tends to be consistent with the humidity of other indoor areas. Therefore, by keeping the humidity compensation value at zero, that is, without humidity compensation, a relatively accurate current humidity value can be obtained.

[0024] According to some embodiments of the present invention, when the indoor unit is restarted within a third preset time period, the current humidity value is calculated using the humidity compensation value obtained last time before the indoor unit is turned off.

[0025] According to some embodiments of the present invention, the return air humidity compensation control method displays the current humidity value on a display screen and / or sends the current humidity value to a mobile terminal bound to the air conditioner.

[0026] In this embodiment, displaying the current humidity value on the screen allows users to see the current humidity value intuitively; in addition, sending the current humidity value to a mobile terminal bound to the air conditioner allows users to view relevant humidity data on the mobile terminal, such as viewing the humidity change curve of the indoor area.

[0027] In a second aspect, embodiments of the present invention provide an operation control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to implement the return air humidity compensation control method as described in the first aspect embodiment above.

[0028] The operation control device provided according to the embodiments of the present invention has at least the following beneficial effects: In the heating mode, by acquiring the speed of the indoor fan and obtaining the humidity compensation value based on the speed of the indoor fan, that is, the determination of the humidity compensation value takes into account the influence of the speed of the indoor fan, and then adding the humidity measurement value to the humidity compensation value to obtain the current humidity value, the humidity detection distortion caused by uneven air heating and stratification is reduced, and the relative humidity detection accuracy of the air conditioner in the indoor area can be improved.

[0029] Thirdly, embodiments of the present invention provide an air conditioner, including the operation control device described in the second aspect of the embodiments above.

[0030] The air conditioner provided according to the embodiments of the present invention has at least the following beneficial effects: In heating mode, by obtaining the speed of the indoor fan and obtaining the humidity compensation value based on the speed of the indoor fan, that is, the determination of the humidity compensation value takes into account the influence of the speed of the indoor fan, and then adding the humidity measurement value to the humidity compensation value to obtain the current humidity value, the humidity detection distortion caused by uneven air heating and stratification is reduced, and the relative humidity detection accuracy of the air conditioner in the indoor area can be improved.

[0031] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the return air humidity compensation control method as described in the first aspect embodiment above.

[0032] The computer-readable storage medium provided according to the embodiments of the present invention has at least the following beneficial effects: In heating mode, by acquiring the internal fan speed and obtaining the humidity compensation value based on the internal fan speed, that is, the determination of the humidity compensation value takes into account the influence of the internal fan speed, and then adding the humidity measurement value to the humidity compensation value to obtain the current humidity value, the humidity detection distortion caused by uneven air heating and stratification is reduced, and the relative humidity detection accuracy of the air conditioner in the indoor area can be improved.

[0033] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0034] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0036] Figure 1 This is a flowchart of the air conditioner return air humidity compensation control method provided in the embodiment of the present invention;

[0037] Figure 2 This is a flowchart of a return air humidity compensation control method for an air conditioner provided in another embodiment of the present invention;

[0038] Figure 3 This is a diagram showing the correspondence between the internal fan speed and humidity compensation value provided in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the operation control device provided in an embodiment of the present invention. Detailed Implementation

[0040] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0041] In the description of the embodiments of the present invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, while "above," "below," "within," etc. are understood to include the number itself. "At least one" refers to one or more, and "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or multiple items. If "first," "second," etc., are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0042] It should be noted that the terms "setting," "installing," and "connecting" in the embodiments of this invention should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in the embodiments of this invention in conjunction with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it can be a direct connection or an indirect connection through an intermediate medium.

[0043] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] When an air conditioner's indoor unit tests indoor humidity, the humidity sensor is typically located in the return air box. However, the return air box is usually installed at a relatively high height, such as within the ceiling, resulting in the humidity measurement point being significantly higher than the area where people move around indoors. When the air conditioner is operating in heating mode, the return air temperature is higher and the relative humidity is lower due to the density of heated air. Therefore, the relative humidity readings collected by the indoor unit's humidity sensor need to be compensated and corrected before being transmitted to the air conditioner's controller. Currently, the commonly used compensation method is to use a fixed compensation value to correct the humidity sensor's measurement, but this method suffers from significant errors and insufficient accuracy.

[0045] Based on this, embodiments of the present invention provide a return air humidity compensation control method, an operation control device, and an air conditioner. In heating mode, the indoor fan speed is obtained, and a humidity compensation value is obtained based on the indoor fan speed. That is, the determination of the humidity compensation value takes into account the influence of the indoor fan speed. The humidity measurement value is then added to the humidity compensation value to obtain the current humidity value. This reduces the humidity detection distortion caused by uneven air heating and stratification, and can improve the relative humidity detection accuracy of the air conditioner in the indoor area.

[0046] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0047] Reference Figure 1A first aspect of the present invention provides a return air humidity compensation control method for an air conditioner, the air conditioner including a humidity sensor for measuring indoor return air humidity; the method includes, but is not limited to, steps S110 to S120:

[0048] Step S110: In heating mode, acquire the internal fan speed and humidity measurement value from the humidity sensor.

[0049] It is understandable that in cooling mode, the blown cold air has a relatively high density and is more likely to diffuse downwards compared to the hot air blown out during heating. Therefore, the blown cold air will not gather in the upper part of the room and be re-inhaled by the unit like the blown hot air. In other words, the return air humidity compensation scheme provided in this embodiment of the invention is applicable to the heating mode of the air conditioner, but is not needed in the cooling mode, or a different compensation scheme is used than that in this embodiment of the invention.

[0050] Step S120: Obtain the humidity compensation value based on the internal fan speed, and add the humidity compensation value to the measured humidity value to obtain the current humidity value. It should be noted that in this embodiment, the measured humidity value, humidity compensation value, and current humidity value all refer to relative humidity.

[0051] According to the air conditioner return air humidity compensation control method provided in the embodiment of the present invention, in the heating mode, the indoor fan speed is obtained and the humidity compensation value is obtained based on the indoor fan speed. That is, the determination of the humidity compensation value takes into account the influence of the indoor fan speed. Then, the humidity measurement value is added to the humidity compensation value to obtain the current humidity value. This reduces the humidity detection distortion caused by uneven air heating and stratification, and can improve the relative humidity detection accuracy of the air conditioner in the indoor area.

[0052] In the return air humidity compensation control method provided in some embodiments of the present invention, the humidity compensation value is calculated using the following formula:

[0053] Hx=A*Fan 2 +B*Fan+C

[0054] Where: Hx is the humidity compensation value; Fan is the internal fan speed, which is expressed as a percentage; A, B, and C are constants.

[0055] It is understandable that when A is not zero, the humidity compensation value Hx is calculated as a quadratic function of the internal fan speed Fan; when A is zero and B is not zero, the humidity compensation value Hx is calculated as a linear function of the internal fan speed Fan. It should be noted that the humidity compensation value formula used in this embodiment of the invention is a correction method for actual relative humidity under different fan speed conditions, derived through statistical analysis of a large amount of regularly observed experimental data. Specifically: A is the coefficient of the quadratic term, with a value range of 0 ≤ A ≤ 50; B is the coefficient of the linear term, with a value range of -100 ≤ B ≤ 0; C is a constant term, with a value range of -100 ≤ C ≤ 100; and the internal fan speed is expressed as a percentage, with a value range of 1% to 100%.

[0056] In the return air humidity compensation control method provided in some embodiments of the present invention, A or B is zero.

[0057] It is understandable that when A is zero, it is equivalent to using a linear function of the internal fan speed Fan, Hx = B * Fan + C, to calculate the humidity compensation value Hx; when B is zero, it is equivalent to using a quadratic function of the same degree, Hx = A * Fan, where the first term is zero. 2 The humidity compensation value Hx is calculated using +C. It's understandable that the values ​​of the constants will differ slightly when different calculation formulas are used.

[0058] After obtaining the current indoor fan speed Fan of the air conditioner and calculating the humidity compensation value Hx using the above formula, the current humidity value Hc can be further calculated using the following formula:

[0059] Hc = H1 + Hx;

[0060] Where: Hc is the current humidity value, and H1 is the humidity measurement value of the humidity sensor.

[0061] In the return air humidity compensation control method provided in some embodiments of the present invention, the humidity compensation value ranges from [D, E], where D and E are constants.

[0062] When the obtained humidity compensation value is less than D, the humidity compensation value is set to D.

[0063] When the obtained humidity compensation value is greater than E, the humidity compensation value is set to E.

[0064] In this embodiment, by setting a range for the humidity compensation value, when the calculated humidity compensation value is greater than the upper limit E of the range, the humidity compensation value is set to the upper limit E; when the calculated humidity compensation value is less than the lower limit D of the range, the humidity compensation value is set to the lower limit D. This limits the calculated humidity compensation value, preventing significant fluctuations in relative humidity caused by compensation. In some embodiments, the humidity compensation value range is [-5%, 5%], meaning the range for humidity compensation of the measured humidity value does not exceed 5%.

[0065] In the return air humidity compensation control method provided in some embodiments of the present invention, the humidity compensation value is kept at zero during the first preset time period of the heating mode being turned on.

[0066] Understandably, during the initial period after the heating mode is activated, the indoor air humidity is relatively uniform without any stratification. Therefore, the humidity compensation value is kept at zero during this time, meaning no humidity compensation is needed. However, after the heating mode has been running for a while, the density of the blown hot air is low. Due to the influence of the hot air density, the return air temperature is higher, and the relative humidity is lower. Therefore, it is necessary to compensate and correct the relative humidity collected by the indoor unit's humidity sensor before transmitting it to the air conditioner's controller.

[0067] In some embodiments, the first preset duration is set to 10 minutes. (See also...) Figure 2 After the air conditioner is turned on in heating mode, the running time in heating mode is timed. If the heating running time is less than 10 minutes, humidity compensation is not performed. If the heating running time is more than 10 minutes, humidity compensation is performed, the indoor fan speed Fan is obtained, and then the humidity compensation value Hx = A * Fan is calculated. 2 +B*Fan+C, then calculate the current humidity value Hc=H1+Hx, and finally transmit the current humidity value Hc after humidity compensation to the air conditioner controller, which controls the air conditioner's operating status based on the current humidity value Hc.

[0068] In the return air humidity compensation control method provided in some embodiments of the present invention, during the heating mode, the internal fan speed and humidity measurement values ​​are reacquired every second preset time interval, and the humidity compensation value and the current humidity value are recalculated.

[0069] Understandably, since the air conditioner is always running in heating mode, the humidity in the indoor area is constantly changing. Every second preset time interval, the indoor fan speed and humidity measurement values ​​are re-acquired, thereby updating the humidity compensation value and the current humidity value. This allows the air conditioner controller to obtain the latest current humidity value every second preset time interval, so that the air conditioner's operating status can be adjusted according to the latest current humidity value.

[0070] In some embodiments of the present invention, the return air humidity compensation control method displays the current humidity value on a display screen and / or sends the current humidity value to a mobile terminal bound to the air conditioner.

[0071] Understandably, displaying the current humidity value on the screen allows users to see it intuitively; in addition, sending the current humidity value to a mobile terminal linked to the air conditioner allows users to view relevant humidity data on their mobile devices, such as viewing the humidity change curve of the indoor area.

[0072] In the return air humidity compensation control method provided in some embodiments of the present invention, when the indoor unit is turned off, the humidity compensation value is kept at the last value for a third preset time period, and the humidity compensation value is controlled to be zero after the third preset time period.

[0073] In this embodiment, after the indoor unit is turned off, the indoor fan speed will drop to 0. If the humidity compensation value and the current humidity value are updated directly according to the indoor fan speed at this time, the current humidity value will fluctuate significantly. For air conditioners that always display the current humidity value on a screen or can be viewed via a mobile terminal, users may perceive this significant fluctuation as abnormal. However, in reality, the humidity in the indoor area does not fluctuate significantly for a period of time after the indoor unit is turned off. Therefore, by keeping the humidity compensation value at the last value for a third preset time period, the possibility of significant fluctuations in the current humidity value can be eliminated. After the third preset time period, the indoor air gradually becomes more uniform, and air stratification no longer occurs. The humidity measurement value obtained from the humidity sensor also tends to be consistent with the humidity of other indoor areas. Therefore, by keeping the humidity compensation value at zero, that is, without humidity compensation, a relatively accurate current humidity value can be obtained.

[0074] In the return air humidity compensation control method provided in some embodiments of the present invention, when the indoor unit is restarted within a third preset time period, the current humidity value is calculated using the humidity compensation value obtained last before the indoor unit is turned off.

[0075] It is understandable that if the indoor unit is restarted within the third preset time period, the indoor air has not yet become completely uniform. Therefore, the humidity compensation value obtained before the indoor unit was turned off is used to calculate the current humidity value. In other words, the humidity compensation value is kept valid within the third preset time period, which makes the current humidity value obtained after restarting more accurate.

[0076] The return air humidity compensation control method of the present invention will now be described in detail with reference to a specific embodiment.

[0077] When the air conditioner receives a control signal and switches to heating mode, it begins timing the heating operation time. When the heating operation time is less than 10 minutes, the air in the indoor area is relatively uniform, and the air conditioner does not perform humidity compensation, directly using the humidity measurement value obtained from the humidity sensor as the current humidity value to control the air conditioner's operation. When the heating operation time is greater than 10 minutes, the density of the blown hot air is low, and due to the influence of the hot air density, the return air temperature is higher, resulting in lower relative humidity. Therefore, it is necessary to start compensating and correcting the relative humidity collected by the indoor unit's humidity sensor: first, obtain the indoor fan speed Fan and the humidity measurement value H1 from the humidity sensor, then use the formula Hx = 38.709Fan. 2 The humidity compensation value Hx is calculated using +61.731*Fan+45.58. The calculation result is referenced. Figure 3 As shown in the curve, the current humidity value Hc is calculated using the formula Hc = H1 + Hx. Finally, the humidity-compensated current humidity value Hc is transmitted to the air conditioner's controller, which then controls the air conditioner's operation based on the current humidity value Hc. To prevent large fluctuations in relative humidity due to compensation, the humidity compensation value Hx for each cycle is limited: Hx ∈ [-5%, 5%]. Furthermore, after the indoor unit is turned off, the indoor fan speed Fan decreases to 0, and the current humidity value Hc remains the Hc calculated in the last calculation cycle before the indoor unit is turned off. After 30 minutes, Hc = H1, while adhering to the principle that the humidity compensation value Hx ∈ [-5%, 5%] for each cycle. In this embodiment, by obtaining the humidity compensation value based on the indoor fan speed and adding the humidity compensation value to the measured humidity value to obtain the current humidity value, the distortion in humidity detection caused by uneven air heating leading to stratification in heating mode can be reduced, improving the relative humidity detection accuracy of the air conditioning unit in the controlled area.

[0078] Reference Figure 4 A second aspect of the present invention provides an operation control device 400, including a memory 410, a processor 420, and a computer program stored in the memory 410 and executable on the processor 420. The processor 420 executes the program to implement the return air humidity compensation control method of the first aspect embodiment above, for example, by executing... Figure 1 Method steps S110 to S120, or execution Figure 2 The method and process in the process.

[0079] According to the operation control device 400 provided in the embodiment of the present invention, in the heating mode, the internal fan speed is obtained and the humidity compensation value is obtained based on the internal fan speed. That is, the determination of the humidity compensation value takes into account the influence of the internal fan speed. Then, the humidity measurement value is added to the humidity compensation value to obtain the current humidity value. This reduces the humidity detection distortion caused by uneven air heating and stratification, and can improve the relative humidity detection accuracy of the air conditioner in the indoor area.

[0080] In addition, a third aspect of the present invention provides an air conditioner including the operation control device 400 as described in the second aspect embodiment above.

[0081] According to the air conditioner provided in the embodiment of the present invention, in the heating mode, the indoor fan speed is obtained and the humidity compensation value is obtained based on the indoor fan speed. That is, the determination of the humidity compensation value takes into account the influence of the indoor fan speed. Then, the humidity measurement value is added to the humidity compensation value to obtain the current humidity value. This reduces the humidity detection distortion caused by uneven air heating and stratification, and can improve the relative humidity detection accuracy of the air conditioner in the indoor area.

[0082] Furthermore, a fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the return air humidity compensation control method of the first aspect embodiment above, for example, executing... Figure 1 Method steps S110 to S120, or execution Figure 2 The method and process in the process.

[0083] According to the computer-readable storage medium provided in the embodiments of the present invention, in the heating mode, by acquiring the internal fan speed and obtaining the humidity compensation value based on the internal fan speed, that is, the determination of the humidity compensation value takes into account the influence of the internal fan speed, and then adding the humidity measurement value to the humidity compensation value to obtain the current humidity value, the humidity detection distortion caused by uneven air heating and stratification is reduced, and the relative humidity detection accuracy of the air conditioner in the indoor area can be improved.

[0084] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0085] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A return air humidity compensation control method of an air conditioner, characterized by, The air conditioner comprises a humidity sensor for measuring humidity of indoor return air; the method comprises: In a heating mode, obtaining an indoor fan rotating speed and a humidity measurement value of the humidity sensor; Obtaining a humidity compensation value according to the indoor fan rotating speed, and obtaining a current humidity value by adding the humidity compensation value to the humidity measurement value; Wherein: The humidity compensation value is calculated by using the following formula: Wherein: Hx is the humidity compensation value; Fan is the indoor fan rotating speed, which is expressed by percentage; A, B, C are constants; the humidity compensation value ranges from [D, E], D, E are constants, when the obtained humidity compensation value is less than D, the humidity compensation value is D; when the obtained humidity compensation value is greater than E, the humidity compensation value is E.

2. The return air humidity compensation control method according to claim 1, characterized by, The A or the B is zero.

3. The return air humidity compensation control method according to claim 1, characterized by, In a first preset time length of starting the heating mode, the humidity compensation value is controlled to be zero.

4. The return air humidity compensation control method according to claim 1, characterized by, During the heating mode, every second preset time length, the indoor fan rotating speed and the humidity measurement value are re-obtained, and the humidity compensation value and the current humidity value are re-calculated.

5. The return air humidity compensation control method according to claim 4, characterized by, When the indoor unit is turned off, the humidity compensation value is controlled to be the last value for a third preset time length, and the humidity compensation value is controlled to be zero after the third preset time length.

6. The return air humidity compensation control method according to claim 5, characterized by, When the indoor unit is restarted within the third preset time length, the humidity compensation value obtained before the indoor unit is turned off is used to calculate the current humidity value.

7. The return air humidity compensation control method according to claim 5, characterized by, The current humidity value is displayed on a display screen, and / or the current humidity value is sent to a mobile terminal bound to the air conditioner.

8. A running control device characterized by comprising: The computer readable storage medium stores computer executable instructions for making the computer execute the return air humidity compensation control method according to any one of claims 1 to 7.

9. An air conditioner characterized by comprising: The operation control device according to claim 8.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer executable instructions for making the computer execute the return air humidity compensation control method according to any one of claims 1 to 7.

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