Control method and device for air conditioning dehumidification, and air conditioner

Abstract

This application relates to the field of intelligent air conditioning technology, and discloses a control method for air conditioning dehumidification, including: obtaining a target indoor ambient temperature, real-time indoor ambient humidity, and real-time air conditioning indoor coil temperature; determining a target air conditioning indoor coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity; determining a first target operating frequency of the air conditioning compressor based on the coil temperature difference between the target air conditioning indoor coil temperature and the real-time air conditioning indoor coil temperature; controlling the air conditioning compressor to operate at the first target operating frequency to lower the temperature of the air conditioning indoor coil so that water vapor in the air condenses. By adjusting the dehumidification reference factors and determining the target operating frequency of the air conditioning compressor based on the coil temperature difference between the target air conditioning indoor coil temperature and the real-time air conditioning indoor coil temperature, and controlling the compressor operation, precise dehumidification can be achieved, improving the air conditioning dehumidification effect. This application also discloses a control device and air conditioner for air conditioning dehumidification.

Description

Technical Field

[0001] This application relates to the field of intelligent air conditioning technology, such as a control method and device for dehumidifying air conditioners, and an air conditioner. Background Technology

[0002] As people's living standards improve, air conditioners are widely used, and people's requirements for air conditioners are also increasing, leading to continuous optimization of air conditioner performance. For example, current air conditioners generally have a dehumidification function. When the air conditioner is in cooling mode, because the evaporation temperature of the heat exchanger is low, condensation will occur, thus reducing indoor humidity and achieving a dehumidification effect.

[0003] In related technologies, the difference between indoor humidity and set humidity is usually used to control the compressor frequency to achieve air conditioning dehumidification.

[0004] In the process of implementing the embodiments of this disclosure, it was found that at least the following problems exist in the related technology: the air conditioner dehumidifies by controlling the compressor frequency solely by the difference between the indoor humidity and the set humidity. Due to the single dehumidification reference factor, the dehumidification effect of the air conditioner is poor. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a control method and device for air conditioning dehumidification, and an air conditioner, which controls the operation of the air conditioner compressor by adjusting dehumidification reference factors to achieve precise dehumidification and improve the dehumidification effect of the air conditioner.

[0007] In some embodiments, the control method for air conditioning dehumidification includes: obtaining a target indoor ambient temperature, real-time indoor ambient humidity, and real-time air conditioning indoor coil temperature; determining a target air conditioning indoor coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity; determining a first target operating frequency of the air conditioning compressor based on the coil temperature difference between the target air conditioning indoor coil temperature and the real-time air conditioning indoor coil temperature; and controlling the air conditioning compressor to operate at the first target operating frequency to reduce the temperature of the air conditioning indoor coil so that water vapor in the air condenses.

[0008] In some embodiments, the control device for air conditioning dehumidification includes a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned control method for air conditioning dehumidification when executing the program instructions.

[0009] In some embodiments, the air conditioner includes the aforementioned control device for dehumidification.

[0010] The control method and device for dehumidification of air conditioners and the air conditioner provided in this disclosure can achieve the following technical effects:

[0011] In this disclosed technical solution, the target indoor coil temperature of the air conditioner is first determined based on the target indoor ambient temperature and the real-time indoor ambient humidity. Then, the target operating frequency of the air conditioner compressor is determined based on the temperature difference between the target indoor coil temperature and the real-time indoor coil temperature. The air conditioner compressor is then controlled to operate at the target operating frequency, thereby lowering the temperature of the indoor coil to cause condensation of water vapor in the air, achieving dehumidification. In this way, by adjusting the dehumidification reference factors and determining the target operating frequency of the air conditioner compressor based on the temperature difference between the target indoor coil temperature and the real-time indoor coil temperature, and controlling the compressor's operation, precise dehumidification can be achieved, significantly improving the dehumidification effect of the air conditioner.

[0012] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0014] Figure 1 This is a schematic flowchart of a control method for air conditioning dehumidification provided in an embodiment of this disclosure;

[0015] Figure 2 This is a schematic flowchart of another control method for air conditioning dehumidification provided in an embodiment of this disclosure;

[0016] Figure 3 This is a schematic flowchart of another control method for air conditioning dehumidification provided in an embodiment of this disclosure;

[0017] Figure 4 This is a schematic flowchart of another control method for air conditioning dehumidification provided in an embodiment of this disclosure;

[0018] Figure 5 This is a schematic flowchart of another control method for air conditioning dehumidification provided in an embodiment of this disclosure;

[0019] Figure 6 This is a schematic diagram of a control device for dehumidifying an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0020] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0021] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0022] Unless otherwise stated, the term "multiple" means two or more. In embodiments of this disclosure, the character " / " indicates that the preceding and following objects are in an "OR" relationship. For example, A / B means: A or B. The term "and / or" describes an association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B. The term "correspondence" can refer to an association or binding relationship; A corresponding to B means that there is an association or binding relationship between A and B.

[0023] Combination Figure 1 As shown, this disclosure provides a control method for air conditioning dehumidification, including the following steps:

[0024] S101 obtains the target indoor ambient temperature, real-time indoor ambient humidity, and real-time indoor air conditioning coil temperature.

[0025] In practical applications, temperature and humidity sensors are used for real-time temperature and humidity data acquisition. For example, a temperature sensor placed near the indoor coil is used to obtain the real-time temperature of the air conditioner's indoor coil, and a humidity sensor is used to obtain the real-time indoor humidity. Here, the target indoor temperature is the indoor temperature that the user wants to achieve.

[0026] S102, determine the target indoor air conditioning coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity.

[0027] Since the dew point temperature varies with humidity, this disclosure determines the target indoor coil temperature by combining the target indoor ambient temperature and the real-time indoor ambient humidity, thereby better achieving air conditioning dehumidification based on the target indoor coil temperature.

[0028] S103, determine the first target operating frequency of the air conditioning compressor based on the coil temperature difference between the target indoor coil temperature and the real-time indoor coil temperature.

[0029] Optionally, the first target operating frequency of the air conditioning compressor is determined based on the coil temperature difference between the target indoor coil temperature and the real-time indoor coil temperature, including: determining the first target operating frequency by means of PID calculation based on the coil temperature difference.

[0030] PID control, or Proportional-Integral-Derivative (PID) control, combines the effects of proportional, integral, and derivative functions. It accelerates system response, reduces oscillations, overcomes overshoot, and effectively eliminates steady-state error, significantly improving both the static and dynamic performance of the system. By determining the target operating frequency of the compressor through PID calculation, air conditioning dehumidification can be achieved, resulting in more precise and stable dehumidification control.

[0031] S104 controls the air conditioning compressor to operate at the first target operating frequency, reducing the temperature of the indoor coil of the air conditioner to cause water vapor in the air to condense.

[0032] In practical applications, the air conditioner compressor is controlled to operate at the first target operating frequency, so that the indoor coil near the evaporator creates a localized lower temperature. Since this temperature is lower than the dew point temperature of the room air, water vapor in the air near the indoor coil condenses, forming water droplets. These droplets slide along the evaporator track to the drain trough and are then discharged into the room, thus achieving air conditioning dehumidification.

[0033] The control method for air conditioning dehumidification provided in this disclosure first determines the target indoor coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity. Then, based on the temperature difference between the target indoor coil temperature and the real-time indoor coil temperature, the target operating frequency of the air conditioning compressor is determined, and the air conditioning compressor is controlled to operate at the target operating frequency. This lowers the temperature of the indoor coil, causing water vapor in the air to condense, thus achieving air conditioning dehumidification. In this way, by adjusting the dehumidification reference factors and determining the target operating frequency of the air conditioning compressor based on the temperature difference between the target indoor coil temperature and the real-time indoor coil temperature, and controlling the compressor's operation, precise dehumidification can be achieved, significantly improving the air conditioning dehumidification effect.

[0034] Combination Figure 2 As shown, this disclosure provides a control method for air conditioning dehumidification, which determines the target indoor coil temperature of the air conditioner based on the target indoor ambient temperature and the real-time indoor ambient humidity, including the following steps:

[0035] S201, determine the real-time dew point temperature based on the target indoor ambient temperature and the real-time indoor ambient humidity.

[0036] Dew point temperature, simply put, is the temperature at which water vapor in the atmosphere condenses into dew droplets. Because the atmosphere has a limited capacity to hold water vapor, generally, the higher the temperature, the more water vapor it can hold. When the amount of water vapor remains constant, if the air temperature drops, the water vapor will become saturated at a certain point; this critical temperature is the dew point temperature.

[0037] Since dew point temperature is related to ambient humidity, this disclosure determines the real-time dew point temperature based on the target indoor ambient temperature and the real-time indoor ambient humidity. Subsequently, the dehumidification control of the air conditioning can be performed more accurately based on the real-time dew point temperature.

[0038] Optionally, the real-time dew point temperature is determined based on the target indoor ambient temperature and the real-time indoor ambient humidity, including: filtering the real-time indoor ambient humidity to obtain the filtered real-time indoor ambient humidity; and determining the real-time dew point temperature based on the target indoor ambient temperature and the filtered real-time indoor ambient humidity.

[0039] The real-time indoor humidity is filtered, including: obtaining the average indoor humidity of the previous N real-time indoor humidity readings; if the difference between the real-time indoor humidity and the average indoor humidity is greater than a preset humidity difference, the average of the previous two real-time indoor humidity readings is taken as the current real-time indoor humidity. Here, N is an integer greater than or equal to 2.

[0040] For example, if the real-time indoor humidity detected in the first N times (e.g., the first 5 times) is 70%, 68%, 66%, 64%, and 62%, then the average indoor humidity is 66%. When the preset humidity difference is 5%, if the current real-time indoor humidity is 88%, then the humidity difference between the current real-time indoor humidity and the average indoor humidity is 22% (greater than the preset humidity difference of 5%). Therefore, the average of the previous two real-time indoor humidity values ​​(64% and 62%, respectively), which is 63%, is taken as the current real-time indoor humidity.

[0041] By filtering the real-time indoor humidity, we can avoid the impact of obviously abnormal real-time indoor humidity data on the accuracy of the real-time dew point temperature, thereby improving the stability of the subsequent operation of the air conditioner compressor, preventing drastic fluctuations in compressor frequency from damaging the compressor's lifespan, and minimizing the impact of unstable air conditioner operation on the user experience.

[0042] Table 1 below shows a preset correspondence table for selectable target indoor ambient temperature, real-time indoor ambient humidity, and real-time dew point temperature. Based on the target indoor ambient temperature and real-time indoor ambient humidity (filtered real-time indoor ambient humidity), the real-time dew point temperature corresponding to the target indoor ambient temperature and real-time indoor ambient humidity can be determined by looking up the preset correspondence table below. For example, if the target indoor ambient temperature is 15℃ and the real-time indoor ambient humidity is 32%, then the real-time dew point temperature is -1.4℃.

[0043] Table 1. Preset Correspondence Table

[0044]

[0045] S202, determine the real-time dew point temperature compensation value based on the indoor fan speed of the air conditioner.

[0046] Under constant ambient temperature and humidity, the condensation effect is also related to wind speed. Generally speaking, the higher the wind speed, the faster the airflow at the indoor coil of the air conditioner, and the faster the condensation; the lower the wind speed, the slower the airflow at the indoor coil, and the slower the condensation. Therefore, the real-time dew point temperature compensation value should be determined based on the indoor fan speed (wind speed).

[0047] In practical applications, a correspondence table between the indoor fan speed of the air conditioner and the real-time dew point temperature compensation value can be established. By looking up the correspondence table between the indoor fan speed of the air conditioner and the real-time dew point temperature compensation value, the real-time dew point temperature compensation value corresponding to the indoor fan speed of the air conditioner can be determined.

[0048] S203, determine the target indoor coil temperature of the air conditioner based on the real-time dew point temperature and the real-time dew point temperature compensation value.

[0049] Optionally, the target indoor coil temperature of the air conditioner is determined based on the real-time dew point temperature and the real-time dew point temperature compensation value, including determining the target indoor coil temperature of the air conditioner according to the following formula:

[0050] T m =T s +α×ΔT b

[0051] Among them, T m For the target indoor coil temperature of the air conditioner, T s ΔT represents the real-time dew point temperature, α represents the real-time dew point temperature compensation coefficient, and ΔT represents the dew point temperature. b This is the real-time dew point temperature compensation value.

[0052] Real-time dew point temperature compensation value ΔT b When the temperature exceeds the preset compensation value (e.g., 2°C), the real-time dew point temperature compensation coefficient α and the real-time dew point temperature compensation value ΔT... bNegative correlation, i.e., ΔT b The smaller ΔT is, the larger α is; b The larger the value, the smaller α becomes. This avoids the need for a real-time dew point temperature compensation value ΔT. b An excessively large value can actually affect the accuracy of the target air conditioner indoor coil temperature Tm.

[0053] In this embodiment, the target indoor coil temperature of the air conditioner is determined comprehensively based on the target indoor ambient temperature and the real-time indoor ambient humidity, and the target indoor coil temperature is compensated by the indoor fan speed. This can more accurately determine the temperature factors on which the air conditioner dehumidifies, thereby achieving precise dehumidification and improving the dehumidification effect of the air conditioner.

[0054] Combination Figure 3 As shown, this disclosure provides a control method for air conditioning dehumidification, which determines a first target operating frequency based on the coil temperature difference using a PID calculation method, including the following steps:

[0055] S301, with multiple (ΔT) n Q n Linear fitting is performed on the fitting points to form a reference curve between the coil temperature difference and the cooling capacity.

[0056] Where, ΔT n Let Q be the temperature difference of the nth coil. n For ΔT n The corresponding nth cooling capacity.

[0057] S302: Select multiple reference points arbitrarily from the reference curve, and take the cooling capacity of the reference points as the fixed cooling capacity value, and take the coil temperature difference of the reference points as the fixed parameter.

[0058] S303, adjust the indoor fan speed and compressor operating frequency until the cooling efficiency ratio (COP) reaches its maximum.

[0059] S304, collecting the indoor fan speed and compressor frequency of the air conditioner under the highest COP condition, to obtain the optimal state point (ΔT). n R n F n ).

[0060] Among them, R n Let F be the speed of the nth indoor air conditioner fan. n Let n be the frequency of the nth air conditioner compressor.

[0061] S305, all optimal state points (ΔT) n R n F n Perform surface fitting to obtain the fitted curve;

[0062] S306, based on the fitted curve, determine the air conditioner compressor frequency corresponding to the coil temperature difference as the first target operating frequency.

[0063] This embodiment of the invention determines the first target operating frequency of the compressor based on the coil temperature difference using PID calculation, thereby achieving air conditioning dehumidification. This makes the air conditioning dehumidification control more precise and stable. At the same time, selecting the air conditioning compressor frequency at the highest COP (Cooling Performance Ratio) makes the air conditioning dehumidification operation more energy-efficient and environmentally friendly.

[0064] Combination Figure 4 As shown, this disclosure provides a control method for air conditioner dehumidification, which controls the air conditioner compressor to operate at a first target operating frequency, including the following steps:

[0065] S401, obtain the first ambient temperature difference between the real-time indoor ambient temperature and the target indoor ambient temperature.

[0066] S402, determine the second target operating frequency of the air conditioning compressor based on the first ambient temperature difference.

[0067] Optionally, determining the second target operating frequency of the air conditioning compressor based on the first ambient temperature difference includes: determining the second target operating frequency based on the first ambient temperature difference using a PID calculation method.

[0068] The method for obtaining the operating frequency of the second target is similar to that for the first target. Specifically, it includes: using multiple (ΔT2) n Q n Linear fitting is performed on the fitted points to form a reference curve between the first ambient temperature difference and the cooling capacity; where ΔT2 n Let Q be the nth first ambient temperature difference value. n For ΔT2 n The corresponding nth cooling capacity; arbitrarily select multiple reference points from the reference curve, and take the cooling capacity of the reference points as the fixed cooling capacity value, and take the first ambient temperature difference of the reference points as the fixed parameter; adjust the indoor fan speed and the operating frequency of the air conditioner compressor until the cooling efficiency ratio (COP) reaches its maximum; collect the indoor fan speed and the air conditioner compressor frequency under the highest cooling efficiency ratio (COP) condition to obtain the optimal state point (ΔT). n R n F n ); where R n Let F be the speed of the nth indoor air conditioner fan. n Let the frequency of the nth air conditioner compressor be ; let all the optimal state points (ΔT) be denoted as . n R n F nPerform surface fitting to obtain the fitting curve; based on the fitting curve, determine the air conditioner compressor frequency corresponding to the first ambient temperature difference as the second target operating frequency.

[0069] Based on the first ambient temperature difference, the second target operating frequency of the compressor is determined by PID calculation, thereby achieving air conditioning dehumidification. This makes the air conditioning dehumidification control more precise and stable. At the same time, selecting the air conditioning compressor frequency when the cooling energy efficiency ratio (COP) is at its highest makes the air conditioning dehumidification operation more energy-efficient and environmentally friendly.

[0070] S403, when the first target operating frequency is greater than the second target operating frequency, control the air conditioning compressor to operate at the first target operating frequency.

[0071] A second target operating frequency is determined based on the first ambient temperature difference, reflecting the air conditioner's temperature regulation needs. The larger the first ambient temperature difference, the higher the second target operating frequency, indicating a relatively large user's temperature regulation needs; conversely, the smaller the first ambient temperature difference, the lower the second target operating frequency, indicating a relatively small user's temperature regulation needs.

[0072] In this embodiment, when the first target operating frequency is greater than the second target operating frequency, the air conditioning compressor is controlled to operate at the first target operating frequency. When the air conditioning dehumidification demand is high, controlling the air conditioning compressor to operate at the first target operating frequency effectively and prioritizes air conditioning dehumidification, thereby improving the user experience.

[0073] Combination Figure 5 As shown, this disclosure provides a control method for air conditioning dehumidification, including the following steps:

[0074] S501 obtains the target indoor ambient temperature, real-time indoor ambient humidity, and real-time indoor air conditioning coil temperature.

[0075] S502 determines the target indoor air conditioning coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity.

[0076] S503, based on the coil temperature difference between the target indoor coil temperature and the real-time indoor coil temperature, determine the first target operating frequency of the air conditioning compressor.

[0077] S504, obtain the first ambient temperature difference between the real-time indoor ambient temperature and the target indoor ambient temperature.

[0078] S505, based on the first ambient temperature difference, determine the second target operating frequency of the air conditioning compressor.

[0079] S506, compare the operating frequency of the first target with the operating frequency of the second target.

[0080] S507, when the first target operating frequency is greater than the second target operating frequency, controls the air conditioning compressor to operate at the first target operating frequency to reduce the temperature of the indoor coil of the air conditioner so that the water vapor in the air will condense.

[0081] S508, when the first target operating frequency is less than the second target operating frequency, control the air conditioning compressor to operate at the second target operating frequency;

[0082] S509 controls the air conditioning compressor to operate at the second target operating frequency, and obtains the second ambient temperature difference between the real-time indoor ambient temperature and the target indoor ambient temperature.

[0083] In practical applications, after controlling the air conditioning compressor to run at the second target operating frequency, the real-time indoor ambient temperature is continuously monitored, and the ambient temperature difference between the real-time indoor ambient temperature and the target indoor ambient temperature (the second ambient temperature difference) is calculated.

[0084] S510, when the second ambient temperature difference is less than the preset temperature difference, controls the air conditioning compressor to operate at the first target operating frequency.

[0085] The preset temperature difference range is (0.5℃, 2℃), for example, 0.5℃, 1℃, 1.5℃, 2℃.

[0086] The control method for air conditioning dehumidification provided in this embodiment adjusts dehumidification reference factors by determining the target operating frequency of the air conditioning compressor based on the temperature difference between the target indoor coil temperature and the real-time indoor coil temperature. This control enables precise dehumidification and significantly improves the dehumidification effect. Furthermore, when the first target operating frequency is greater than the second target operating frequency, the air conditioning compressor operates at the first target operating frequency; when the first target operating frequency is less than the second target operating frequency, the air conditioning compressor operates at the second target operating frequency. When dehumidification demand is high, controlling the air conditioning compressor to operate at the first target operating frequency effectively and prioritizes dehumidification. When temperature regulation demand is high, controlling the air conditioning compressor to operate at the second target operating frequency effectively and prioritizes temperature regulation. After the indoor temperature is adjusted to a suitable level, the air conditioning compressor continues to operate at the first target operating frequency for effective dehumidification. This better meets users' air conditioning needs and enhances the user experience.

[0087] Combination Figure 6The present disclosure provides a control device for air conditioning dehumidification, including a processor 60 and a memory 61, and may also include a communication interface 62 and a bus 63. The processor 60, communication interface 62, and memory 61 can communicate with each other via the bus 63. The communication interface 62 can be used for information transmission. The processor 60 can call logical instructions in the memory 61 to execute the control method for air conditioning dehumidification described in the above embodiment.

[0088] Furthermore, the logic instructions in the aforementioned memory 61 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0089] The memory 61, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 60 executes functional applications and data processing by running the program instructions / modules stored in the memory 61, thereby implementing the control method for air conditioning dehumidification in the above method embodiments.

[0090] The memory 61 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 61 may include high-speed random access memory and may also include non-volatile memory.

[0091] The control device for air conditioning dehumidification provided in this embodiment first determines the target indoor coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity. Then, based on the temperature difference between the target indoor coil temperature and the real-time indoor coil temperature, it determines the target operating frequency of the air conditioning compressor and controls the compressor to operate at the target frequency. This lowers the temperature of the indoor coil, causing water vapor in the air to condense, thus achieving dehumidification. By adjusting the dehumidification reference factors and determining the target operating frequency of the air conditioning compressor based on the temperature difference between the target and real-time indoor coil temperatures, and controlling the compressor's operation, precise dehumidification can be achieved, significantly improving the dehumidification effect of the air conditioning system.

[0092] This disclosure provides an air conditioner that includes the control device described above for dehumidifying the air conditioner.

[0093] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for air conditioning dehumidification.

[0094] This disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the aforementioned control method for air conditioning dehumidification.

[0095] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0096] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0097] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. The scope of the embodiments of this disclosure includes the entire scope of the claims and all available equivalents of the claims. While the terms “first,” “second,” etc., may be used in this application to describe elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be called a second element without changing the meaning of the description, and similarly, a second element may be called a first element, provided that all occurrences of “first element” are consistently renamed and all occurrences of “second element” are consistently renamed. First and second elements are both elements, but may not be the same element. Moreover, the terminology used in this application is only for describing embodiments and is not intended to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Similarly, the term “and / or” as used herein means including one or more of the associated listed elements and all possible combinations thereof. Additionally, when used herein, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase “comprising an…” does not exclude the presence of additional identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0098] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0099] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0100] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method for dehumidification in air conditioning, characterized in that, include: Obtain the target indoor ambient temperature, real-time indoor ambient humidity, and real-time indoor air conditioning coil temperature; The target indoor air conditioning coil temperature is determined based on the target indoor ambient temperature and the real-time indoor ambient humidity. The first target operating frequency of the air conditioning compressor is determined based on the coil temperature difference between the target indoor coil temperature and the real-time indoor coil temperature. The air conditioning compressor is controlled to operate at the first target operating frequency to reduce the temperature of the indoor air conditioning coil so that water vapor in the air condenses. The process of determining the target air conditioning indoor coil temperature based on the target indoor ambient temperature and real-time indoor ambient humidity includes: determining the real-time dew point temperature based on the target indoor ambient temperature and real-time indoor ambient humidity; determining the real-time dew point temperature compensation value based on the air conditioning indoor fan speed; and determining the target air conditioning indoor coil temperature based on the real-time dew point temperature and the real-time dew point temperature compensation value. The target indoor coil temperature of the air conditioner is determined based on the real-time dew point temperature and the real-time dew point temperature compensation value, including determining the target indoor coil temperature of the air conditioner according to the following formula: ,in, The target is the indoor coil temperature of the air conditioner. For real-time dew point temperature, This is the coefficient for real-time dew point temperature compensation. This is the real-time dew point temperature compensation value. When the real-time dew point temperature compensation value is greater than the preset compensation value, the coefficient of the real-time dew point temperature compensation value is... Compensation value for real-time dew point temperature Negative correlation.

2. The control method according to claim 1, characterized in that, The step of determining the real-time dew point temperature based on the target indoor ambient temperature and the real-time indoor ambient humidity includes: The real-time indoor humidity is filtered to obtain the filtered real-time indoor humidity. The real-time dew point temperature is determined based on the target indoor ambient temperature and the filtered real-time indoor ambient humidity.

3. The control method according to claim 1, characterized in that, The step of determining the first target operating frequency of the air conditioning compressor based on the coil temperature difference between the target indoor coil temperature and the real-time indoor coil temperature includes: The first target operating frequency is determined by PID calculation based on the temperature difference of the coil.

4. The control method according to any one of claims 1 to 3, characterized in that, The control of the air conditioner compressor to operate at the first target operating frequency includes: Obtain the first ambient temperature difference between the real-time indoor ambient temperature and the target indoor ambient temperature; Based on the first ambient temperature difference, the second target operating frequency of the air conditioning compressor is determined; When the first target operating frequency is greater than the second target operating frequency, the air conditioning compressor is controlled to operate at the first target operating frequency.

5. The control method according to claim 4, characterized in that, Determining the second target operating frequency of the air conditioning compressor based on the first ambient temperature difference includes: The second target operating frequency is determined by PID calculation based on the first ambient temperature difference.

6. The control method according to claim 4, characterized in that, Also includes: When the first target operating frequency is less than the second target operating frequency, the air conditioning compressor is controlled to operate at the second target operating frequency. After controlling the air conditioning compressor to operate at the second target operating frequency, a second ambient temperature difference between the real-time indoor ambient temperature and the target indoor ambient temperature is obtained; When the second ambient temperature difference is less than the preset temperature difference, the air conditioning compressor is controlled to operate at the first target operating frequency.

7. A control device for dehumidifying an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the control method for air conditioning dehumidification as described in any one of claims 1 to 6 when executing the program instructions.

8. An air conditioner, characterized in that, Includes the control device for dehumidification of air conditioning as described in claim 7.

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