Air conditioner, control method, device, and computer-readable storage medium thereof

Abstract

This application provides an air conditioner and its control method, apparatus, and computer-readable storage medium. The air conditioner control method includes: determining the dehumidification operation stage of the air conditioner based on the indoor temperature and the set temperature; and controlling the operation of the air conditioner according to the control strategy corresponding to the dehumidification operation stage.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, specifically to an air conditioner and its control method, device, and computer-readable storage medium. Background Technology

[0002] In related technologies, when air conditioners are cooling and dehumidifying, they cannot be accurately controlled, resulting in less than ideal temperature and humidity regulation effects. Summary of the Invention

[0003] This application provides an air conditioner and its control method, device, and computer-readable storage medium, which can execute corresponding control strategies according to different dehumidification operation stages, thereby improving the temperature and humidity control effect.

[0004] In a first aspect, embodiments of this application provide an air conditioner control method, comprising: determining the dehumidification operation stage of the air conditioner based on the indoor temperature and the set temperature; and controlling the operation of the air conditioner according to a control strategy corresponding to the dehumidification operation stage.

[0005] In some embodiments, determining the dehumidification operation stage of the air conditioner based on the indoor temperature and the set temperature includes: determining whether the temperature difference between the indoor temperature and the set temperature is greater than a first threshold temperature; determining that the air conditioner is in a cooling and dehumidification stage in response to determining that the temperature difference between the indoor temperature and the set temperature is greater than the first threshold temperature; and determining that the air conditioner is in a temperature-reaching and dehumidification stage in response to determining that the temperature difference between the indoor temperature and the set temperature is less than or equal to the first threshold temperature.

[0006] In some embodiments, controlling the operation of the air conditioner according to the control strategy corresponding to the dehumidification operation phase includes: in response to the air conditioner being in the cooling and dehumidification phase, determining the critical temperature of the inner pipe according to the load prediction model, wherein the critical temperature of the inner pipe is the temperature of the inner pipe when the sensible heat of the air conditioner enters the stable zone; and determining the operating parameters of the air conditioner according to the critical temperature of the inner pipe and the current temperature of the inner pipe.

[0007] In some embodiments, determining the operating parameters of the air conditioner based on the critical temperature of the inner pipe and the current temperature of the inner pipe includes: determining the frequency adjustment amount of the compressor based on the temperature difference between the current temperature of the inner pipe and the critical temperature of the inner pipe, and the temperature difference between the indoor temperature and the set temperature; and adjusting the operating frequency of the compressor based on the frequency adjustment amount of the compressor.

[0008] In some embodiments, controlling the operation of the air conditioner according to the control strategy corresponding to the dehumidification operation phase includes: in response to the air conditioner being in the temperature-reaching dehumidification phase, determining the required sensible heat and the optimal sensible heat, wherein the required sensible heat is the sensible heat required for the air conditioner to maintain the temperature-reaching state, and the optimal sensible heat is the sensible heat when the air conditioner reaches the optimal load; and determining the operating parameters of the air conditioner according to the required sensible heat and the optimal sensible heat.

[0009] In some embodiments, determining the required sensible heat and the optimal sensible heat includes: determining the required sensible heat, and the sensible heat and latent heat of the air conditioner's refrigeration cycle system under various operating parameters, based on a load forecasting model; determining the load evaluation parameters of the refrigeration cycle system under corresponding operating parameters based on the sensible heat and latent heat of the refrigeration cycle system under different operating parameters; and determining the maximum value of the load evaluation parameters and the sensible heat corresponding to the maximum value, using these as the optimal sensible heat.

[0010] In some embodiments, the load evaluation parameters are determined by the following formula: W n =a·Q l,n +b·(Q s,n -Q s,set ); where Wn is the load evaluation parameter of the refrigeration cycle system under the nth set of operating parameters, and Q l,n Let Q be the latent heat of the refrigeration cycle system under the nth set of operating parameters. s,n Q represents the sensible heat of the refrigeration cycle system under the nth set of operating parameters. s,set Let be the sensible heat required, and a and b be constants.

[0011] In some embodiments, determining the operating parameters of the air conditioner based on the required sensible heat and the optimal sensible heat includes: determining the operating frequency of the compressor and the opening degree of the throttling component based on the optimal sensible heat; determining the difference between the optimal sensible heat and the required sensible heat; and controlling the operation of the electric auxiliary heating device based on the difference.

[0012] In some embodiments, the load prediction model is an artificial neural network prediction model. The input layer of the artificial neural network prediction model includes indoor temperature, indoor humidity, outdoor temperature, outdoor humidity, indoor fan speed, compressor operating frequency, and throttling component opening degree. The output layer of the artificial neural network prediction model includes the total cooling capacity, sensible heat capacity, and inner pipe critical temperature of the air conditioner.

[0013] Secondly, embodiments of this application provide an air conditioner control device, including: an operation phase confirmation circuit configured to determine the dehumidification operation phase of the air conditioner based on the indoor temperature and a set temperature; and an operation control circuit configured to control the operation of the air conditioner according to a control strategy corresponding to the dehumidification operation phase.

[0014] Thirdly, embodiments of this application provide an air conditioner, including: a memory storing a computer program; and a processor, wherein the computer program, when executed by the processor, implements the air conditioner control method as described in any of the above embodiments.

[0015] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the steps in the air conditioner control method described above.

[0016] The air conditioner control method provided in this application first determines the dehumidification operation stage of the air conditioner based on the indoor temperature and the set temperature, and then selects the control strategy corresponding to the dehumidification operation stage to control the air conditioner in a targeted manner, so that the operating characteristics of the air conditioner are more closely matched with the actual needs, thereby enabling more accurate regulation of indoor temperature and humidity, and more ideally meeting the user's comfort needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of an air conditioner control method provided in some embodiments of this application;

[0019] Figure 2 This is a partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0020] Figure 3 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0021] Figure 4 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0022] Figure 5 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0023] Figure 6This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0024] Figure 7 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0025] Figure 8 This is another partial flowchart of an air conditioner control method provided in some embodiments of this application;

[0026] Figure 9 This is a structural diagram of the load prediction model of the air conditioner control method provided in some embodiments of this application;

[0027] Figure 10 This is a structural diagram of an air conditioner provided in some embodiments of this application.

[0028] Explanation of key component symbols:

[0029] 1-Air conditioner, 10-Processor, 20-Memory. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0033] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0034] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0035] like Figure 1 As shown, in a first aspect, embodiments of this application provide an air conditioner control method, which includes S10 to S20, and can execute corresponding control strategies according to different dehumidification operation stages, thereby improving the temperature and humidity control effect.

[0036] S10: Determine the dehumidification operation stage of air conditioner 1 based on the indoor temperature and the set temperature. Here, the indoor temperature can be measured by a temperature sensor installed on the indoor side. The set temperature is the target temperature expected to be reached in the indoor environment, which can be manually entered by the user or automatically generated by air conditioner 1 based on operating conditions such as user habits and current environmental information.

[0037] When air conditioner 1 performs cooling and dehumidification, it needs to go through several different dehumidification operation stages to reduce the indoor temperature to near the set temperature and the indoor humidity to near the target indoor humidity. The demand for sensible heat and latent heat varies significantly in different dehumidification operation stages, resulting in different operating characteristics. In the dehumidification operation stage where the indoor temperature differs greatly from the set temperature, the indoor temperature needs to be reduced rapidly to provide a comfortable temperature environment. At this time, the demand for sensible heat is high, requiring a higher proportion of sensible heat in the total cooling capacity of air conditioner 1. Conversely, in the dehumidification operation stage where the indoor temperature differs less from the set temperature, the indoor temperature environment is relatively comfortable, but the indoor humidity needs to be further reduced. At this time, the demand for sensible heat decreases, while the demand for latent heat increases. If the same control strategy is used for different dehumidification operation stages, it will lead to a significant deviation between the operating characteristics of air conditioner 1 and actual needs, making it impossible for air conditioner 1 to accurately regulate temperature and humidity. Therefore, targeted control strategies should be adopted for different dehumidification operation stages.

[0038] S20: Control the operation of air conditioner 1 according to the control strategy corresponding to the dehumidification operation stage.

[0039] Here, multiple control strategies can be pre-set in air conditioner 1, each corresponding to a different dehumidification operation stage. In this way, after determining the dehumidification operation stage of air conditioner 1, the control strategy corresponding to that dehumidification operation stage can be selected to control air conditioner 1 in a targeted manner, so that the operating characteristics of air conditioner 1 are more closely matched with actual needs, thereby enabling more accurate regulation of indoor temperature and humidity, and more ideally meeting the user's comfort needs.

[0040] like Figure 2 As shown, in some embodiments, S10 may include S11 to S13.

[0041] S11: Determine whether the temperature difference between the indoor temperature and the set temperature is greater than a first threshold temperature. Here, the first threshold temperature can be preset in the air conditioner 1 as a marker to determine the dehumidification operation stage of the air conditioner 1. In some examples, the air conditioner 1 may include a cooling dehumidification stage and a temperature-reaching dehumidification stage when performing cooling dehumidification.

[0042] S12: In response to the determination that the temperature difference between the indoor temperature and the set temperature is greater than a first threshold temperature, the air conditioner 1 is determined to be in the cooling and dehumidification stage. When the temperature difference between the indoor temperature and the set temperature is determined to be greater than the first threshold temperature, it indicates that the indoor temperature and the set temperature are significantly different, and the indoor temperature needs to be rapidly reduced to provide a comfortable temperature environment; during this process, the temperature and humidity decrease simultaneously, achieving the effects of cooling and dehumidification at the same time.

[0043] S13: In response to determining that the temperature difference between the indoor temperature and the set temperature is less than or equal to a first threshold temperature, the air conditioner 1 is determined to be in the temperature-reaching dehumidification stage. When the temperature difference between the indoor temperature and the set temperature is less than or equal to the first threshold temperature, it indicates that the indoor temperature is near the set temperature and the temperature regulation purpose has been achieved, thus reaching the temperature-reaching state; at this time, dehumidification control needs to be performed while maintaining the indoor temperature at the temperature-reaching state.

[0044] By setting S11 to S13, the dehumidification operation stage of air conditioner 1 can be determined more accurately, thus providing a reliable basis for subsequent targeted control based on the dehumidification operation stage.

[0045] like Figure 3 As shown, in some examples, S20 may include S21 to S22.

[0046] S21: In response to the air conditioner 1 being in the cooling and dehumidification stage, the critical temperature of the inner pipe is determined according to the load prediction model.

[0047] Here, the critical temperature of the inner pipe is the temperature of the inner pipe when the sensible heat of the air conditioner 1 enters the stable zone. Specifically, it is the temperature of the inner pipe when the sensible heat of the refrigeration cycle system of the air conditioner 1 enters the stable zone during the cooling process, which is also the maximum value of the inner pipe temperature corresponding to the stable zone. The critical temperature of the inner pipe is lower than the dew point temperature of the indoor heat exchanger, and the inner pipe temperature is the coil temperature of the indoor heat exchanger. The refrigeration cycle system is a cycle system that uses the phase change of the refrigerant for refrigeration, and typically includes a compressor, a reversing valve, an indoor heat exchanger, and an outdoor heat exchanger.

[0048] Here, the load prediction model can be pre-set in the air conditioner 1. One or more of the following can be used as input variables: environmental parameters such as indoor temperature, indoor humidity, outdoor temperature and outdoor humidity, and operating parameters such as indoor fan speed, compressor operating frequency and throttling device opening degree. The critical temperature of the inner pipe can be used as at least one of the output variables. After determining the measured values ​​of the input variables, the measured values ​​can be input into the load prediction model to obtain the actual calculated value of the critical temperature of the inner pipe.

[0049] like Figure 9As shown, for example, the load forecasting model can be an artificial neural network (ANN) forecasting model. The input layer of the ANN forecasting model includes indoor temperature, indoor humidity, outdoor temperature, outdoor humidity, indoor fan speed, compressor operating frequency, and throttling device opening degree. The output layer of the ANN forecasting model includes the total cooling capacity of air conditioner 1, sensible heat capacity, and critical temperature of the inner pipe. Before use, historical operating data such as indoor temperature, indoor humidity, outdoor temperature, outdoor humidity, indoor fan speed, compressor operating frequency, and throttling device opening degree can be used as sample data to train the ANN forecasting model.

[0050] The inventors discovered that during the cooling and dehumidification phase, as the inner pipe temperature decreases, the sensible heat in the total cooling capacity of the air conditioner 1 changes synchronously. When the inner pipe temperature drops to the dew point temperature, condensation occurs on the surface of the indoor heat exchanger. A portion of the cooling capacity of the air conditioner 1 is used for dehumidification; this portion is latent heat, reducing the proportion of sensible heat in the total cooling capacity. When the inner pipe temperature further decreases to the critical temperature, the sensible heat of the air conditioner 1 enters a stable region. Within this stable region, as the inner pipe temperature continues to decrease, the change in sensible heat is relatively small, for example, less than the threshold value, while the latent heat continues to rise, further reducing the proportion of sensible heat in the total cooling capacity. Therefore, during the cooling and dehumidification phase, the proportion of sensible heat in the air conditioner 1 reaches its maximum at the critical temperature of the inner pipe. When the inner pipe temperature is near the critical temperature, a larger portion of the total cooling capacity in the refrigeration cycle system is sensible heat, which can be used to lower the indoor ambient temperature, while a smaller portion is latent heat, used to dehumidify the indoor air, thus ensuring rapid cooling and reducing energy waste for dehumidification.

[0051] S22: Determine the operating parameters of air conditioner 1 based on the critical temperature of the inner pipe and the current temperature of the inner pipe.

[0052] Here, the current inner pipe temperature can be measured by a temperature sensor installed on the indoor heat exchanger. After determining the critical temperature of the inner pipe, the operating parameters of air conditioner 1 can be adjusted based on the critical temperature and the current inner pipe temperature to bring the inner pipe temperature close to and maintain it near the critical temperature, thereby bringing the proportion of sensible heat of air conditioner 1 close to and maintaining it near its maximum value. Generally speaking, if the current inner pipe temperature and the critical temperature differ significantly, it indicates that the current proportion of sensible heat of air conditioner 1 is far from its maximum value, and the operating parameters of air conditioner 1 can be adjusted more significantly. If the current inner pipe temperature and the critical temperature differ little or are completely the same, it indicates that the current proportion of sensible heat of air conditioner 1 is small or even equal to its maximum value, and the operating parameters of air conditioner 1 can be adjusted less significantly or not at all. In this way, the proportion of sensible heat in air conditioner 1 can gradually approach and be maintained near its maximum value, so that a large part of the total cooling capacity in the refrigeration cycle system is sensible heat and can be used to lower the indoor ambient temperature, while a smaller part is latent heat and can be used to dehumidify the indoor air, thereby improving the utilization rate of the total cooling capacity, ensuring rapid cooling and reducing energy waste for dehumidification.

[0053] like Figure 4 As shown, for example, S22 may include S221 to S222.

[0054] S221: Determine the compressor frequency adjustment amount based on the temperature difference between the current inner tube temperature and the critical temperature of the inner tube, as well as the temperature difference between the indoor temperature and the set temperature.

[0055] Here, the temperature difference between the current inner pipe temperature and the critical temperature of the inner pipe reflects the distance between the current proportion of sensible heat and the maximum value of the air conditioner 1, while the temperature difference between the indoor temperature and the set temperature reflects the cooling capacity required to reach the set temperature. By combining the temperature difference between the current inner pipe temperature and the critical temperature of the inner pipe, as well as the temperature difference between the indoor temperature and the set temperature, the operating frequency of the compressor can be adjusted and controlled more accurately. This increases the total cooling capacity and the proportion of sensible heat of the air conditioner 1, thereby increasing the total value of sensible heat that the air conditioner 1 can provide, thus ensuring rapid cooling and reducing energy waste for dehumidification.

[0056] like Figure 5 As shown, for example, S221 may include S2211 to S2212.

[0057] S2211: Determine the temperature range of the inner tube where the temperature difference between the current inner tube temperature and the critical temperature of the inner tube lies, and the temperature range of the indoor temperature where the temperature difference between the indoor temperature and the set temperature lies.

[0058] S2212: Determine the compressor frequency adjustment amount based on the temperature range of the inner tube between the current inner tube temperature and the critical temperature of the inner tube, and the temperature range of the indoor temperature between the indoor temperature and the set temperature.

[0059] Here, several continuously distributed inner pipe temperature ranges and several indoor temperature ranges can be pre-set in the air conditioner 1. Any inner pipe temperature range and any indoor temperature range form a control range, and a corresponding frequency adjustment amount is set for each control range. The number of inner pipe / indoor temperature ranges and the length of each inner pipe / indoor temperature range can be determined according to actual needs, and this embodiment does not limit this. Generally speaking, if there are more inner pipe / indoor temperature ranges, there will be more control ranges and more frequency adjustment amounts, and the matching degree between each frequency adjustment amount and the inner pipe / indoor temperature range will be higher, and the grading accuracy of the frequency adjustment amount will be higher. Similarly, if the length of each inner pipe / indoor temperature range is shorter, the length of the control range will be shorter, the temperature range corresponding to each frequency adjustment amount will be smaller, the matching degree between each frequency adjustment amount and the inner pipe / indoor temperature range will be higher, and the grading accuracy of the frequency adjustment amount will be higher. In this way, after determining the inner pipe / indoor temperature range where the temperature difference is located, the control range corresponding to that inner pipe / indoor temperature range and the frequency adjustment amount corresponding to that control range can be determined, and thus the current heat demand can be determined.

[0060] For example, at least three indoor temperature ranges and at least six inner tube temperature ranges can be set. The at least three indoor temperature ranges are a first indoor temperature range less than a first indoor threshold temperature, a second indoor temperature range greater than or equal to the first indoor threshold temperature and less than a second indoor threshold temperature, and a third indoor temperature range greater than or equal to the second indoor threshold temperature. The first indoor threshold temperature is less than the second indoor threshold temperature; the specific values ​​of the first and second indoor threshold temperatures can be determined according to actual needs, and this embodiment does not limit this. The at least six inner tube temperature ranges are a first inner tube temperature range less than the first inner tube threshold temperature, a second inner tube temperature range greater than or equal to the first inner tube threshold temperature and less than the second inner tube threshold temperature, a third inner tube temperature range greater than or equal to the second inner tube threshold temperature and less than the third inner tube threshold temperature, a fourth inner tube temperature range greater than or equal to the third inner tube threshold temperature and less than the fourth inner tube threshold temperature, a fifth inner tube temperature range greater than or equal to the fourth inner tube threshold temperature and less than the fifth inner tube threshold temperature, and a sixth inner tube temperature range greater than or equal to the fifth inner tube threshold temperature. Wherein, the first inner tube threshold temperature is lower than the second inner tube threshold temperature, the second inner tube threshold temperature is lower than the third inner tube threshold temperature, the third inner tube threshold temperature is lower than the fourth inner tube threshold temperature, and the fourth inner tube threshold temperature is lower than the fifth inner tube threshold temperature; the specific values ​​of the first, second, third, fourth, and fifth inner tube threshold temperatures can be determined according to actual needs, and this application embodiment does not limit this. Any inner tube temperature range and any indoor temperature range form a control range, thereby forming at least eighteen control ranges.

[0061] For the same inner tube temperature range, the frequency adjustment amount corresponding to the control range formed by the inner tube temperature range and the first indoor temperature range is less than the frequency adjustment amount corresponding to the control range formed by the inner tube temperature range and the second indoor temperature range, and the frequency adjustment amount corresponding to the control range formed by the inner tube temperature range and the second indoor temperature range is less than the frequency adjustment amount corresponding to the control range formed by the inner tube temperature range and the third indoor temperature range. Similarly, for the same indoor temperature range, the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the first inner tube temperature range is less than the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the second inner tube temperature range; the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the second inner tube temperature range is less than the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the third inner tube temperature range; the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the third inner tube temperature range is less than the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the fourth inner tube temperature range; the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the fourth inner tube temperature range is less than the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the fifth inner tube temperature range; and the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the fifth inner tube temperature range is less than the frequency adjustment amount corresponding to the control range formed by the indoor temperature range and the sixth inner tube temperature range.

[0062] S222: Adjust the compressor's operating frequency according to the compressor's frequency adjustment amount. Here, the compressor's current operating frequency and the frequency adjustment amount can be added together to obtain the compressor's target operating frequency.

[0063] like Figure 6 As shown, in some examples, S20 may include S23 to S24.

[0064] S23: In response to the air conditioner 1 being in the temperature-reaching and dehumidification stage, determine the required sensible heat and the optimal sensible heat. Here, the required sensible heat is the sensible heat required for the air conditioner 1 to maintain the temperature-reaching state, while the optimal sensible heat is the sensible heat when the air conditioner 1 reaches its optimal load. Here, when the air conditioner 1 reaches its optimal load, the cooling capacity of the air conditioner 1 matches or is substantially matched with the demand load of the indoor environment, so that the utilization rate of the cooling capacity of the air conditioner 1 reaches its optimal level.

[0065] S24: Determine the operating parameters of air conditioner 1 based on the required sensible heat and the optimal sensible heat.

[0066] After determining the required sensible heat and the optimal sensible heat, the operating parameters of air conditioner 1 can be adjusted based on these parameters. This ensures that the cooling capacity of air conditioner 1 reaches its optimal load state while meeting the required sensible heat. In this way, the sensible heat provided by air conditioner 1 maintains the indoor temperature near the set temperature, the high latent heat provided ensures excellent dehumidification, and the cooling capacity of air conditioner 1 matches or nearly matches the demand load of the indoor environment. Consequently, the overall power consumption of air conditioner 1 remains at a low level, achieving optimal energy-saving performance.

[0067] like Figure 7 As shown, for example, S23 may include S231 to S233.

[0068] S231: Determine the required sensible heat, and the sensible heat and latent heat of the air conditioner 1's refrigeration cycle system under various operating parameters based on the load forecasting model. Here, the set temperature can be input into the load forecasting model to obtain the required sensible heat. Multiple sets of operating parameters of the air conditioner 1's refrigeration cycle system can be input into the load forecasting model to obtain the sensible heat, total cooling capacity, and latent heat of the refrigeration cycle system under various operating parameters. The latent heat is equal to the difference between the total cooling capacity and the sensible heat. Here, multiple different compressor operating frequency values ​​and multiple different throttling component opening values ​​can be input to obtain the sensible heat, total cooling capacity, and latent heat corresponding to different compressor operating frequency values / throttling component opening values.

[0069] S232: Based on the sensible and latent heat of the refrigeration cycle system under different operating parameters, determine the load evaluation parameters of the refrigeration cycle system under the corresponding operating parameters. Here, the load evaluation parameters are used to evaluate the ideal load state of air conditioner 1. These parameters are correlated with the sensible and latent heat of the refrigeration cycle system. If the value of the load evaluation parameter is large, it indicates that the matching degree between the cooling capacity of air conditioner 1 and the demand load of the indoor environment is high; if the value of the load evaluation parameter is small, it indicates that the matching degree between the cooling capacity of air conditioner 1 and the demand load of the indoor environment is low.

[0070] S233: Determine the maximum value of the load evaluation parameter and the sensible heat corresponding to the maximum value, and use it as the optimal sensible heat.

[0071] After determining the load evaluation parameters of the refrigeration cycle system under each set of operating parameters, a series of specific values ​​of the load evaluation parameters can be obtained. Based on these specific values ​​of the load evaluation parameters, the maximum value and the sensible heat corresponding to the maximum value can be determined, thereby obtaining the optimal sensible heat.

[0072] The specific calculation method for load assessment parameters can be determined according to actual needs, and this application embodiment does not limit this. For example, load assessment parameters are determined using the following formula:

[0073] W n =a·Q l,n +b·(Q s,n -Q s,set )

[0074] Among them, W n Let Q be the load evaluation parameter of the refrigeration cycle system under the nth set of operating parameters. l,n Let Q be the latent heat of the refrigeration cycle system under the nth set of operating parameters. s,n Let Q be the sensible heat of the refrigeration cycle system under the nth set of operating parameters. s,set For the required sensible heat, a and b are constants. Here, the values ​​of a and b can range from -100 to 100, and this application embodiment does not limit this; for example, a can be a positive value, and b can be a negative value.

[0075] like Figure 8 As shown, for example, S24 may include S241 to S242.

[0076] S241: Determine the compressor's operating frequency and the opening degree of the throttling component based on the optimal sensible heat.

[0077] Once the optimal sensible heat is determined, the operating parameters of the refrigeration cycle system corresponding to that optimal sensible heat can be determined, and the operating frequency of the compressor and the opening degree of the throttling component can be obtained accordingly.

[0078] S242: Determine the difference between the optimal sensible heat and the required sensible heat, and control the operation of the electric auxiliary heating device based on the difference.

[0079] During the temperature-reaching and dehumidification phase, the indoor heat exchanger primarily operates at a low pipe temperature and high latent heat. The inner pipe temperature of the indoor heat exchanger decreases to a lower range, further increasing the specific value of the latent heat of air conditioner 1 and its proportion in the total cooling capacity. During this process, although the proportion of sensible heat in the total cooling capacity continues to decrease, the sensible heat value remains at a high level, exceeding the required sensible heat. This may cause a significant drop in indoor temperature, preventing it from remaining near the set temperature. Here, the electric auxiliary heating device can be controlled to operate based on the difference between the optimal and required sensible heat to offset this difference, ensuring that the actual sensible heat matches the required sensible heat. This guarantees that the indoor temperature can be reliably maintained near the set temperature, thus maintaining the temperature-reaching state.

[0080] Here, if the electric auxiliary heating device is a power adjustable auxiliary heating device, the output power of the electric auxiliary heating device can be set to be equal to the difference between the optimal sensible heat and the required sensible heat; if the electric auxiliary heating device is a power constant auxiliary heating device, the start time and stop time of the electric auxiliary heating device can be determined according to the difference between the optimal sensible heat and the required sensible heat, thereby controlling the electric auxiliary heating device to periodically start and stop.

[0081] Secondly, embodiments of this application provide an air conditioner control device, which includes an operation phase confirmation circuit and an operation control circuit. The operation phase confirmation circuit is configured to determine the dehumidification operation phase of the air conditioner 1 based on the indoor temperature and the set temperature; the operation control circuit is configured to control the air conditioner 1 to operate according to the control strategy corresponding to the dehumidification operation phase.

[0082] like Figure 10 As shown, in a third aspect, embodiments of this application provide an air conditioner 1, which includes a processor 10 and a memory 20. The memory 20 stores a computer program, which, when executed by the processor 10, implements the air conditioner control method as described in any of the above embodiments. The type of air conditioner 1 can be determined according to actual needs, and may be, for example, a wall-mounted air conditioner 1, a cabinet air conditioner 1, a window air conditioner 1, a ceiling-mounted unit, etc., and embodiments of this application do not limit this.

[0083] Processor 10 is connected to memory 20 and can perform various actions and processes according to the program stored in memory 20. Specifically, processor 10 can be an integrated circuit chip with signal processing capabilities. The processor 10 can be a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, and can be based on x86 architecture or ARM architecture.

[0084] Memory 20 may be volatile or non-volatile, or may include both. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). It should be noted that memory 20 of the methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0085] Here, the air conditioner may also include a refrigeration cycle system, which may include a compressor, a reversing valve, an indoor heat exchanger, and an outdoor heat exchanger. Here, the air conditioner may also include an electric auxiliary heating device.

[0086] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor 10 to execute the steps in the control method of any of the above embodiments.

[0087] For example, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards, and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the embodiments of this application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0088] The above provides a detailed description of an air conditioner and its control method, apparatus, and computer-readable storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioner control method, characterized in that, include: Determine the dehumidification operation stage of the air conditioner based on the indoor temperature and the set temperature; The air conditioner is controlled to operate according to the control strategy corresponding to the dehumidification operation stage; Based on the indoor temperature and the set temperature, determine the dehumidification operation stage of the air conditioner, including: Determine whether the temperature difference between the indoor temperature and the set temperature is greater than the first threshold temperature; In response to the determination that the temperature difference between the indoor temperature and the set temperature is greater than a first threshold temperature, the air conditioner is determined to be in the cooling and dehumidification stage. In response to determining that the temperature difference between the indoor temperature and the set temperature is less than or equal to a first threshold temperature, the air conditioner is determined to be in the temperature-reaching and dehumidifying stage. According to the control strategy corresponding to the dehumidification operation phase, the air conditioner is controlled to operate, including: In response to the air conditioner being in the cooling and dehumidification stage, the critical temperature of the inner pipe is determined according to the load prediction model. The critical temperature of the inner pipe is the temperature of the inner pipe when the sensible heat of the air conditioner enters the stable zone. The operating parameters of the air conditioner are determined based on the critical temperature of the inner pipe and the current temperature of the inner pipe. In response to the air conditioner being in the temperature-reaching and dehumidification stage, the required sensible heat and the optimal sensible heat are determined. The required sensible heat is the sensible heat required for the air conditioner to maintain the temperature-reaching state, and the optimal sensible heat is the sensible heat when the air conditioner reaches its optimal load. The operating parameters of the air conditioner are determined based on the required sensible heat and the optimal sensible heat.

2. The air conditioner control method according to claim 1, characterized in that, The operating parameters of the air conditioner are determined based on the critical temperature of the inner pipe and the current temperature of the inner pipe, including: The compressor frequency adjustment amount is determined based on the temperature difference between the current inner tube temperature and the critical temperature of the inner tube, and the temperature difference between the indoor temperature and the set temperature. The operating frequency of the compressor is adjusted according to the frequency adjustment amount of the compressor.

3. The air conditioner control method according to claim 1, characterized in that, Determine the required sensible heat and the optimal sensible heat, including: The sensible heat demand and the sensible and latent heat of the air conditioner's refrigeration cycle system under various operating parameters are determined based on the load prediction model. Based on the sensible heat and latent heat of the refrigeration cycle system under different operating parameters, determine the load evaluation parameters of the refrigeration cycle system under the corresponding operating parameters; The maximum value of the load evaluation parameter and the sensible heat corresponding to the maximum value are determined, and this value is taken as the optimal sensible heat.

4. The air conditioner control method according to claim 3, characterized in that, The load evaluation parameters are determined by the following formula: ； in, W n Let Q be the load evaluation parameter of the refrigeration cycle system under the nth set of operating parameters. l,n The latent heat of the refrigeration cycle system under the nth set of operating parameters. Q s,n The sensible heat of the refrigeration cycle system under the nth set of operating parameters. Q s,set Let be the sensible heat required, and a and b be constants.

5. The air conditioner control method according to claim 1, characterized in that, Based on the required sensible heat and the optimal sensible heat, the operating parameters of the air conditioner are determined, including: Based on the optimal sensible heat, determine the compressor's operating frequency and the opening degree of the throttling component; Determine the difference between the optimal sensible heat and the required sensible heat, and control the operation of the electric auxiliary heating device based on the difference.

6. The air conditioner control method according to claim 1, characterized in that, The load prediction model is an artificial neural network prediction model. The input layer of the artificial neural network prediction model includes indoor temperature, indoor humidity, outdoor temperature, outdoor humidity, indoor fan speed, compressor operating frequency, and throttling component opening degree. The output layer of the artificial neural network prediction model includes the total cooling capacity, sensible heat capacity, and critical temperature of the inner pipe of the air conditioner.

7. An air conditioner control device, characterized in that, include: The operation phase confirmation circuit is configured to determine the dehumidification operation phase of the air conditioner based on the indoor temperature and the set temperature. Based on the indoor temperature and the set temperature, determine the dehumidification operation stage of the air conditioner, including: Determine whether the temperature difference between the indoor temperature and the set temperature is greater than the first threshold temperature; In response to the determination that the temperature difference between the indoor temperature and the set temperature is greater than a first threshold temperature, the air conditioner is determined to be in the cooling and dehumidification stage. In response to determining that the temperature difference between the indoor temperature and the set temperature is less than or equal to a first threshold temperature, the air conditioner is determined to be in the temperature-reaching and dehumidifying stage. The operation control circuit is configured to control the air conditioner to operate according to the control strategy corresponding to the dehumidification operation stage; controlling the air conditioner to operate according to the control strategy corresponding to the dehumidification operation stage includes: In response to the air conditioner being in the cooling and dehumidification stage, the critical temperature of the inner pipe is determined according to the load prediction model. The critical temperature of the inner pipe is the temperature of the inner pipe when the sensible heat of the air conditioner enters the stable zone. The operating parameters of the air conditioner are determined based on the critical temperature of the inner pipe and the current temperature of the inner pipe. In response to the air conditioner being in the temperature-reaching and dehumidification stage, the required sensible heat and the optimal sensible heat are determined. The required sensible heat is the sensible heat required for the air conditioner to maintain the temperature-reaching state, and the optimal sensible heat is the sensible heat when the air conditioner reaches its optimal load. The operating parameters of the air conditioner are determined based on the required sensible heat and the optimal sensible heat.

8. An air conditioner, characterized in that, include: Memory, which stores computer programs; A processor, wherein the computer program, when executed by the processor, implements the air conditioner control method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the air conditioner control method according to any one of claims 1 to 6.

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