A control method and device of an air conditioner, a storage medium and an air conditioner

Abstract

The application provides a control method and device of an air conditioner, a storage medium and the air conditioner. The method comprises the following steps: after the air conditioner is started to cool, an initial running frequency of the air conditioner last time when the air conditioner is started to cool under the same indoor and outdoor environment temperature and set temperature as this time is acquired, and a second time length of running at an intermediate running frequency is acquired; it is judged whether the second time length of running at the intermediate running frequency last time is greater than a preset time length; if it is judged that the second time length is greater than the preset time length, a preset frequency value is added to the initial running frequency of the air conditioner last time when the air conditioner is started to cool, as the initial running frequency of the air conditioner this time when the air conditioner is started to cool; if it is judged that the second time length is less than or equal to the preset time length, the initial running frequency of the air conditioner last time when the air conditioner is started to cool is taken as the initial running frequency of the air conditioner this time when the air conditioner is started to cool. The application can realize the rapid change of room temperature and improve the comfort of users.

Description

Technical Field

[0001] This invention relates to the field of control, and more particularly to a control method, apparatus, storage medium, and air conditioner for an air conditioner. Background Technology

[0002] During air conditioning operation, the compressor frequency is determined by the difference between the indoor ambient temperature and the set temperature. Generally, a larger temperature difference results in a higher initial operating frequency. As the indoor temperature decreases, the temperature difference narrows, leading to a lower operating frequency. Conversely, a smaller temperature difference results in a lower initial operating frequency, sometimes preventing the air conditioner from reaching its maximum operating value.

[0003] Currently, users prioritize rapid cooling and energy efficiency when using air conditioners. However, the aforementioned control logic can cause air conditioners to underperform under certain conditions. Summary of the Invention

[0004] The main objective of this invention is to overcome the deficiencies of the aforementioned related technologies and provide an air conditioner control method, device, storage medium, and air conditioner to solve the problem that the control logic in the related technologies causes the air conditioner to fail to achieve its optimal performance under certain operating conditions.

[0005] This invention provides a method for controlling an air conditioner, comprising: after the air conditioner is turned on for cooling, acquiring the initial operating frequency of the air conditioner during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling is turned on, and the second duration of the air conditioner operating at an intermediate operating frequency during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling is turned on; determining whether the second duration of the air conditioner operating at the intermediate operating frequency during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling is turned on is greater than a preset duration; if the second duration is greater than the preset duration, then determining the initial operating frequency of the air conditioner during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling is turned on. The system adds a preset frequency value to the operating frequency as the initial operating frequency for this cooling operation, so that the air conditioner operates at the initial operating frequency for this cooling operation; if it is determined that the second duration is less than or equal to the preset duration, then the initial operating frequency of the air conditioner in the previous cooling operation under the same indoor and outdoor ambient temperature and set temperature as when the current cooling was turned on is used as the initial operating frequency for this cooling operation, so that the air conditioner operates at the initial operating frequency for this cooling operation; wherein, the intermediate operating frequency is the operating frequency at which the air conditioner operates at the initial operating frequency until the preset conditions are met, and then reduces the frequency until the temperature difference between the indoor ambient temperature and the set temperature is less than the preset temperature difference threshold, and the intermediate operating frequency includes more than one frequency value.

[0006] Optionally, it further includes: if the air conditioner previously operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time, then a preset frequency value is added to the initial operating frequency of the air conditioner previously operating under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time, as the initial operating frequency of the air conditioner for the current cooling operation; and / or, if it is determined that the second duration is less than or equal to the preset duration, then after the air conditioner operates at the initial operating frequency of the current cooling operation for a first duration, it directly switches to the low-frequency operating frequency of the air conditioner previously operating under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time; wherein, the first duration is the duration of the air conditioner operating at the initial operating frequency when it was previously operating under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time; the low-frequency operating frequency is the operating frequency of the air conditioner previously operating under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold.

[0007] Optionally, it further includes: after the air conditioner has been running for a first duration at the initial operating frequency of the current cooling operation, determining the duration for which the air conditioner will run at the same initial operating frequency as the current cooling operation after the next cooling operation is turned on, based on the temperature difference between the minimum indoor ambient temperature and the set temperature.

[0008] Optionally, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is determined based on the temperature difference between the minimum indoor ambient temperature and the set temperature. This includes: if the temperature difference is within a preset temperature difference range, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the first duration; if the temperature difference is greater than or equal to the upper limit of the preset temperature difference range, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the sum of the first duration and a preset duration correction value; if the temperature difference is less than or equal to the lower limit of the preset temperature difference range, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the difference between the first duration and the preset duration correction value.

[0009] In another aspect, the present invention provides an air conditioner control device, comprising: an acquisition unit, configured to acquire, after the air conditioner is turned on for cooling, the initial operating frequency of the air conditioner during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling operation is turned on, and a second duration of the air conditioner operating at an intermediate operating frequency during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling operation is turned on; a judgment unit, configured to determine whether the second duration of the air conditioner operating at the intermediate operating frequency during its previous cooling operation under the same indoor and outdoor ambient temperatures and set temperature as when the current cooling operation is turned on is greater than a preset duration; and a control unit, configured to, if the judgment unit determines that the second duration is greater than the preset duration, determine whether the second duration of the air conditioner operating at the same indoor and outdoor ambient temperatures and set temperature as when the current cooling operation is turned on, the second duration of the air conditioner operating at the intermediate operating frequency is greater than a preset duration. The initial operating frequency of the air conditioner during cooling operation is increased by a preset frequency value to serve as the initial operating frequency for this cooling operation, so that the air conditioner operates at the initial operating frequency for this cooling operation. If the judgment unit determines that the second duration is less than or equal to the preset duration, the initial operating frequency of the air conditioner during cooling operation under the same indoor and outdoor ambient temperatures and set temperatures as when cooling is turned on this time is used as the initial operating frequency for this cooling operation, so that the air conditioner operates at the initial operating frequency for this cooling operation. The intermediate operating frequency is the operating frequency at which the air conditioner operates at the initial operating frequency until the preset conditions are met, and then reduces the frequency until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold. The intermediate operating frequency includes more than one frequency value.

[0010] Optionally, the control unit is further configured to: if the air conditioner previously operated under the same indoor and outdoor ambient temperature and set temperature as when it was first turned on for the current cooling operation, then add a preset frequency value to the initial operating frequency of the air conditioner previously operated under the same indoor and outdoor ambient temperature and set temperature as when it was first turned on for the current cooling operation, as the initial operating frequency of the air conditioner for the current cooling operation; and / or, if the judgment unit determines that the second duration is less than or equal to the preset duration, then after the air conditioner operates at the initial operating frequency of the current cooling operation for a first duration, directly switch to the low-frequency operating frequency of the air conditioner previously operated under the same indoor and outdoor ambient temperature and set temperature as when it was first turned on for the current cooling operation; wherein, the first duration is the duration during which the air conditioner operated under the initial operating frequency as when it was first turned on for the current cooling operation; the low-frequency operating frequency is the operating frequency after the air conditioner operated under the same indoor and outdoor ambient temperature and set temperature as when it was first turned on for the current cooling operation until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold.

[0011] Optionally, it further includes: a determining unit, configured to determine, based on the temperature difference between the minimum indoor ambient temperature and the set temperature, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the air conditioner has been running for a first duration at the initial operating frequency of the current cooling operation.

[0012] Optionally, the determining unit determines the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle begins, based on the temperature difference between the minimum indoor ambient temperature and the set temperature. This includes: if the temperature difference is within a preset temperature difference range, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle begins is the first duration; if the temperature difference is greater than or equal to the upper limit of the preset temperature difference range, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle begins is the sum of the first duration and a preset duration correction value; if the temperature difference is less than or equal to the lower limit of the preset temperature difference range, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle begins is the difference between the first duration and the preset duration correction value.

[0013] In another aspect, the present invention provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0014] In another aspect, the present invention provides an air conditioner, including a processor, a memory, and a computer program stored in the memory that can run on the processor, wherein the processor executes the program to implement the steps of any of the methods described above.

[0015] In another aspect, the present invention provides an air conditioner including any of the control devices described above.

[0016] According to the technical solution of the present invention, by increasing the initial operating frequency after the air conditioner is turned on, the operating time of the air conditioner running at the intermediate operating frequency after the temperature drops is shortened, thereby achieving rapid changes in room temperature, improving user comfort, and also achieving energy saving. Once the operating time at the intermediate operating frequency is shortened to a preset value, the next control directly changes the initial operating frequency to the minimum operating frequency. After the initial operating frequency directly changes to the minimum operating frequency, the difference between the indoor ambient temperature and the set temperature is recorded to shorten or increase the operating time of the next initial operating frequency, thus achieving accurate room temperature control.

[0017] According to the technical solution of the present invention, the air conditioner can achieve rapid cooling and energy saving through continuous optimization control in the user's actual operating scenario. During operation, the air conditioner avoids failing to perform at its optimal capacity under various operating conditions, thus preventing rapid changes in room temperature, improving user comfort, and achieving energy savings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of an embodiment of the air conditioner control method provided by the present invention;

[0020] Figure 2 This is a schematic diagram of a specific embodiment of the air conditioner control method provided by the present invention;

[0021] Figure 3 A schematic diagram illustrating the variation of air conditioner operating frequency according to the present invention is shown;

[0022] Figure 4 A schematic diagram illustrating the average room temperature variation according to the present invention is shown;

[0023] Figure 5 This is a structural block diagram of an embodiment of the air conditioner control device provided by the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] Figure 1 This is a schematic diagram of an embodiment of the air conditioner control method provided by the present invention.

[0027] like Figure 1 As shown, according to an embodiment of the present invention, the air conditioner control method includes at least steps S110, S120, S130 and S140.

[0028] Step S110: After the air conditioner is turned on for cooling, obtain the initial operating frequency of the air conditioner when it was running for cooling under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling this time, and the second duration of the air conditioner running for cooling at the intermediate operating frequency when it was running for cooling under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling this time.

[0029] Specifically, during each cooling cycle of the air conditioner, the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency are recorded, along with the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency. This is further supported by recording the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency, as well as the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency, assuming the same indoor and outdoor ambient temperatures and set temperatures as when the current cooling cycle begins.

[0030] The initial operating frequency, denoted as F1, is the initial target frequency for the air conditioner's cooling operation. It is determined based on the outdoor ambient temperature and the temperature difference between the indoor ambient temperature and the air conditioner's set temperature. The outdoor ambient temperature determines the upper limit of the initial operating frequency. The initial operating frequency is determined by the temperature difference between the indoor ambient temperature and the air conditioner's set temperature; the larger the temperature difference, the higher the initial operating frequency, and vice versa. For example, different pre-set correspondences between the temperature difference between the indoor ambient temperature and the air conditioner's set temperature and the initial operating frequency can be established, and the initial operating frequency can be determined based on these pre-set correspondences. The intermediate operating frequency, denoted as F2, is the operating frequency at which the air conditioner operates at the initial operating frequency until a preset condition is met, then reduces its frequency until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold. For example, the preset condition can be that the indoor ambient temperature begins to decrease and the decrease reaches a preset temperature value. That is, after the indoor ambient temperature begins to decrease and reaches the preset temperature value, the air conditioner starts to operate at a reduced frequency. Specifically, for each preset temperature decrease in the indoor ambient temperature, the air conditioner's operating frequency decreases by the preset frequency value. Therefore, the intermediate operating frequency includes more than one frequency value. The low-frequency operating frequency is denoted as F3, which is the operating frequency of the air conditioner after the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold. Because the room temperature decreases in real time, the air conditioner's frequency also decreases, and the indoor cooling output shows a decreasing trend. When the cooling output to the room is just enough to maintain the room temperature (the user-set temperature), the air conditioner's frequency remains unchanged and no longer decreases further. This frequency is the low-frequency operating frequency F3.

[0031] As the room temperature gradually approaches the user's set temperature, the air conditioner's operating frequency gradually decreases. For example, if the user sets the temperature to 26℃ and the initial indoor ambient temperature is 32℃, after the air conditioner is turned on, the compressor frequency will rise to 85Hz (the highest frequency during this operation, which is the initial operating frequency F1). As the indoor ambient temperature decreases, the frequency will gradually decrease to 69Hz, maintain this level for a period, and then decrease to 52Hz. When the difference between the indoor ambient temperature and the set temperature (specifically, the absolute difference between the indoor ambient temperature and the set temperature) is within 0.5℃, the frequency will continuously operate at 25Hz. The 85Hz frequency is the initial operating frequency, i.e., the highest frequency, represented by F1. 69Hz and 52Hz are intermediate operating frequencies, i.e., frequencies between F1 and F3, with 25Hz being the lowest frequency, F3.

[0032] Step S120: Determine whether the second duration of the air conditioner's operation at the intermediate operating frequency when it was running in the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling operation is greater than the preset duration.

[0033] Step S130: If it is determined that the second duration is greater than the preset duration, then the preset frequency value is added to the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation.

[0034] Step S140: If it is determined that the second duration is less than or equal to the preset duration, then the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation is taken as the initial operating frequency of the air conditioner for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation.

[0035] Specifically, it is determined whether the second duration t2 of the air conditioner running at the intermediate operating frequency when it was running in the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling operation is greater than the preset duration θ1. The value of θ1 can be, for example, 0 to 5 minutes.

[0036] If t2 > θ1, a preset frequency value ΔF (within a range of, for example, 1Hz to 10Hz) is added to the initial operating frequency F1 as the initial operating frequency F1' for this cooling operation. This initial operating frequency F1' continues in this manner. If the second duration of the current cooling operation at the intermediate operating frequency exceeds the preset duration, then the next cooling operation under the same indoor and outdoor ambient temperatures and set temperatures as when the current cooling operation began, ΔF is added to the initial operating frequency F1' as the initial operating frequency, until t2 ≤ θ1. If t2 ≤ θ1, the current cooling operation runs at the same initial operating frequency F1' as the initial operating frequency F1.

[0037] If the air conditioner previously operated for the first time under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time, then the initial operating frequency for this cooling operation is increased by a preset frequency value based on the initial operating frequency of the air conditioner under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time. That is, if this is the first time the air conditioner has operated for cooling under the current indoor and outdoor ambient temperatures and set temperature, then it operates normally and records the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency of this cooling operation, as well as the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency. After the next cooling operation, the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency recorded for this cooling operation (under the same indoor and outdoor ambient temperatures and set temperature), as well as the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency, are obtained, and the initial operating frequency is the same as the initial operating frequency of this operation plus the preset frequency value.

[0038] Furthermore, if it is determined that the second duration is less than or equal to the preset duration, then after the air conditioner runs for a first duration at the initial operating frequency of this cooling operation, it directly switches to the low-frequency operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when this cooling operation was started.

[0039] Specifically, the first duration is the duration during which the air conditioner operated at its initial operating frequency when it was cooling under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time. If t2 ≤ θ1, then the current cooling operation runs at the same initial operating frequency F1 as the previous operation for a first duration t1, and then switches to the low-frequency operating frequency F3 used when the air conditioner was cooling under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time. The low-frequency operating frequency is the operating frequency after the air conditioner has been cooling under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold.

[0040] Similarly, if, based on the initial operating frequency F1 of the air conditioner under the same indoor and outdoor ambient temperature and set temperature as when it was last turned on for cooling, a preset frequency value ΔF (within a range of, for example, 1Hz to 10Hz) is added as the initial operating frequency F1' of the air conditioner for cooling this time, and the operating time is less than or equal to the preset duration, then the next time the air conditioner is turned on for cooling under the same indoor and outdoor ambient temperature and set temperature as when it was last turned on for cooling, it will directly run at F1' for a first duration t1, and then switch to the low-frequency operating frequency F3 of the air conditioner under the same indoor and outdoor ambient temperature and set temperature as when it was last turned on for cooling.

[0041] Optionally, the method further includes: after the air conditioner has been running for a first duration at the initial operating frequency of the current cooling operation, determining the duration for which the air conditioner will run at the same initial operating frequency as the current cooling operation after the next cooling operation is turned on, based on the temperature difference between the minimum indoor ambient temperature and the set temperature.

[0042] Specifically, it is determined whether the temperature difference between the minimum indoor ambient temperature and the set temperature is within a preset temperature difference range. If the temperature difference is within the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the first duration. If the temperature difference is greater than or equal to the upper limit of the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the sum of the first duration and the preset duration correction value. If the temperature difference is less than or equal to the lower limit of the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the difference between the first duration and the preset duration correction value.

[0043] For example, the preset range is -1℃ < tn min -Ts < 1℃; After running at the initial operating frequency for the first duration, and before switching to a lower operating frequency, determine the minimum indoor ambient temperature tn. min The temperature difference between the initial operating frequency F1' and the set temperature Ts is such that when the temperature difference is ≤ -1℃, the continuous operating time t1 of the initial operating frequency F1' decreases by Δt upon the next startup, until -1℃ < tn. min -Ts < 1℃. The advantage of this is that while the room temperature drops rapidly, it avoids excessively low temperatures and large deviations from the user-set temperature, thus improving comfort and achieving energy savings. Similarly, when the temperature difference is ≥ 1℃, the continuous running time t1 of the initial operating frequency F1' increases by Δt upon the next startup, until -1℃ < tn. min -Ts<1℃. Figure 4 A schematic diagram illustrating the average room temperature variation according to the present invention is shown. Figure 4 As shown, curve 1 is the initial room cooling curve, curve 2 is the target room cooling curve, and curve 3 is the room temperature drop curve when the temperature is over-adjusted. Curve 3 shows the phenomenon of temperature over-adjustment. At this time, the duration of the initial operating frequency F1' can be determined by the minimum temperature value and the set temperature value.

[0044] To clearly illustrate the technical solution of the present invention, the execution flow of the air conditioner control method provided by the present invention will be described below with reference to a specific embodiment.

[0045] Figure 2 This is a schematic diagram of a specific embodiment of the air conditioner control method provided by the present invention. After the air conditioner is turned on for cooling, the initial indoor ambient temperature Tn0, the user-set temperature Ts0, and the outdoor ambient temperature Tw0 are collected; as follows: Figure 2 As shown, the air conditioner operates according to normal control logic, reaching the initial frequency curve. The stable frequencies after startup are F1, F2, F3... (This embodiment uses three frequencies as an example to illustrate the subsequent changes. It should be understood that the invention is not limited to three frequencies. When the frequency increases, F2 represents the intermediate frequency and F3 represents the low frequency.) It is worth noting that as the room temperature decreases, F1, F2, and F3 gradually decrease.

[0046] When the air conditioner is turned on again, ΔF is added to F1, becoming F1'. The value of ΔF ranges from 1Hz to 10Hz, and the subsequent control remains unchanged. The duration of F2's operation is recorded as t2. If t2 > θ1, ΔF is added again to the initial F1' during the next operation, until t2 ≤ θ1. The value of θ1 ranges from 0 to 5 minutes.

[0047] When the duration of F2 frequency t2 ≤ θ1, record the duration of F1' in this run t1. In the next run, directly run F1' for t1, then switch to F3 and record the minimum inner ring temperature Tn at this time. min The difference between F1' and Ts, when the difference is ≤ -1℃, will cause the continuous running time t1 of F1' to decrease by Δt during the next startup, until -1℃ < tn. min -Ts < 1℃. The advantage of this is that while the room temperature drops rapidly, it avoids excessively low temperatures and large deviations from the user-set temperature. This not only improves comfort but also achieves energy savings. When the difference is ≥ 1℃, the continuous running time t1 of F1' increases by Δt upon the next startup, until -1℃ < tn. min -Ts<1℃.

[0048] Figure 3 A schematic diagram illustrating the air conditioner operating frequency variation according to the present invention is shown. For example... Figure 3As shown, the initial frequency line is the frequency line when the present invention is not implemented; the frequency line during the process is the frequency line after adding a preset frequency value to the initial operating frequency of the previous cooling operation (under the same indoor and outdoor ambient temperature and set temperature as when the current cooling is turned on); the target frequency line is the frequency line that directly switches from the initial operating frequency to the previous minimum operating frequency when the time of operation at the previous intermediate operating frequency is less than the preset time. Figure 4 A schematic diagram illustrating the average room temperature variation according to the present invention is shown. Figure 4 Curve 3 in the diagram will result in over-adjustment of the temperature. In this case, the duration is determined by comparing the minimum temperature value with the set temperature value.

[0049] The present invention also provides a control device for an air conditioner.

[0050] Figure 5 This is a structural block diagram of an embodiment of the air conditioner control device provided by the present invention. Figure 5 As shown, the control device 100 includes: an acquisition unit 110, a judgment unit 120, and a control unit 130.

[0051] The acquisition unit 110 is used to acquire, after the air conditioner is turned on for cooling, the initial operating frequency of the air conditioner when it was previously running under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling, and the second duration of the air conditioner running at the intermediate operating frequency when it was previously running under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling.

[0052] Specifically, during each cooling cycle of the air conditioner, the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency are recorded, along with the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency. This is further supported by recording the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency, as well as the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency, assuming the same indoor and outdoor ambient temperatures and set temperatures as when the current cooling cycle begins.

[0053] The initial operating frequency, denoted as F1, is the initial target frequency for the air conditioner's cooling operation. It is determined based on the outdoor ambient temperature and the temperature difference between the indoor ambient temperature and the air conditioner's set temperature. The outdoor ambient temperature determines the upper limit of the initial operating frequency. The initial operating frequency is determined by the temperature difference between the indoor ambient temperature and the air conditioner's set temperature; the larger the temperature difference, the higher the initial operating frequency, and vice versa. For example, different pre-set correspondences between the temperature difference between the indoor ambient temperature and the air conditioner's set temperature and the initial operating frequency can be established, and the initial operating frequency can be determined based on these pre-set correspondences. The intermediate operating frequency, denoted as F2, is the operating frequency at which the air conditioner operates at the initial operating frequency until a preset condition is met, then reduces its frequency until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold. For example, the preset condition can be that the indoor ambient temperature begins to decrease and the decrease reaches a preset temperature value. That is, after the indoor ambient temperature begins to decrease and reaches the preset temperature value, the air conditioner starts to operate at a reduced frequency. Specifically, for each preset temperature decrease in the indoor ambient temperature, the air conditioner's operating frequency decreases by the preset frequency value. Therefore, the intermediate operating frequency includes more than one frequency value. The low-frequency operating frequency is denoted as F3, which is the operating frequency of the air conditioner after the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold. Because the room temperature decreases in real time, the air conditioner's frequency also decreases, and the indoor cooling output shows a decreasing trend. When the cooling output to the room is just enough to maintain the room temperature (the user-set temperature), the air conditioner's frequency remains unchanged and no longer decreases further. This frequency is the low-frequency operating frequency F3.

[0054] As the room temperature gradually approaches the user's set temperature, the air conditioner's operating frequency gradually decreases. For example, if the user sets the temperature to 26℃ and the initial indoor ambient temperature is 32℃, after the air conditioner is turned on, the compressor frequency will rise to 85Hz (the highest frequency during this operation, which is the initial operating frequency F1). As the indoor ambient temperature decreases, the frequency will gradually decrease to 69Hz, maintain this level for a period, and then decrease to 52Hz. When the difference between the indoor ambient temperature and the set temperature (specifically, the absolute difference between the indoor ambient temperature and the set temperature) is within 0.5℃, the frequency will continuously operate at 25Hz. The 85Hz frequency is the initial operating frequency, i.e., the highest frequency, represented by F1. 69Hz and 52Hz are intermediate operating frequencies, i.e., frequencies between F1 and F3, with 25Hz being the lowest frequency, F3.

[0055] The judgment unit 120 is used to determine whether the second duration of the air conditioner's operation at the intermediate operating frequency when the air conditioner was running in the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling operation is greater than the preset duration.

[0056] The control unit 130 is configured to, if the determination unit determines that the second duration is greater than the preset duration, add a preset frequency value to the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation, and use this preset frequency value as the initial operating frequency of the air conditioner for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation; if the determination unit determines that the second duration is less than or equal to the preset duration, use the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation, and use this initial operating frequency of the air conditioner for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation.

[0057] Specifically, the judgment unit 120 determines whether the second duration t2 of the air conditioner running at the intermediate operating frequency when it was running in the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling operation is greater than the preset duration θ1. The value range of θ1 can be, for example, 0 to 5 minutes.

[0058] If t2 > θ1, a preset frequency value ΔF (within a range of, for example, 1Hz to 10Hz) is added to the initial operating frequency F1 as the initial operating frequency F1' for this cooling operation. This initial operating frequency F1' continues in this manner. If the second duration of the current cooling operation at the intermediate operating frequency exceeds the preset duration, then the next cooling operation under the same indoor and outdoor ambient temperatures and set temperatures as when the current cooling operation began, ΔF is added to the initial operating frequency F1' as the initial operating frequency, until t2 ≤ θ1. If t2 ≤ θ1, the current cooling operation runs at the same initial operating frequency F1' as the initial operating frequency F1.

[0059] Furthermore, the control unit 130 is also configured to: if the judgment unit 120 determines that the second duration is less than or equal to the preset duration, then after the air conditioner runs for a first duration at the initial operating frequency of the current cooling operation, it directly switches to the low-frequency operating frequency of the air conditioner when it last ran cooling under the same indoor and outdoor ambient temperature and set temperature as when the current cooling was turned on.

[0060] Specifically, the first duration is the duration during which the air conditioner operated at its initial operating frequency when it was cooling under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time. If t2 ≤ θ1, then the current cooling operation runs at the same initial operating frequency F1 as the previous operation for a first duration t1, and then switches to the low-frequency operating frequency F3 used when the air conditioner was cooling under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time. The low-frequency operating frequency is the operating frequency after the air conditioner has been cooling under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold.

[0061] Similarly, if, based on the initial operating frequency F1 of the air conditioner under the same indoor and outdoor ambient temperature and set temperature as when it was last turned on for cooling, a preset frequency value ΔF (within a range of, for example, 1Hz to 10Hz) is added as the initial operating frequency F1' of the air conditioner for cooling this time, and the operating time is less than or equal to the preset duration, then the next time the air conditioner is turned on for cooling under the same indoor and outdoor ambient temperature and set temperature as when it was last turned on for cooling, it will directly run at F1' for a first duration t1, and then switch to the low-frequency operating frequency F3 of the air conditioner under the same indoor and outdoor ambient temperature and set temperature as when it was last turned on for cooling.

[0062] If the air conditioner previously operated for the first time under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time, then the initial operating frequency for this cooling operation is increased by a preset frequency value based on the initial operating frequency of the air conditioner under the same indoor and outdoor ambient temperatures and set temperature as when it was turned on this time. That is, if this is the first time the air conditioner has operated for cooling under the current indoor and outdoor ambient temperatures and set temperature, then it operates normally and records the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency of this cooling operation, as well as the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency. After the next cooling operation, the initial operating frequency, intermediate operating frequency, and low-frequency operating frequency recorded for this cooling operation (under the same indoor and outdoor ambient temperatures and set temperature), as well as the first duration of operation at the initial operating frequency and the second duration of operation at the intermediate operating frequency, are obtained, and the initial operating frequency is the same as the initial operating frequency of this operation plus the preset frequency value.

[0063] Optionally, the device further includes: a determining unit (not shown), configured to determine, based on the temperature difference between the minimum indoor ambient temperature and the set temperature, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the air conditioner has been running for a first duration at the initial operating frequency of the current cooling operation.

[0064] Specifically, it is determined whether the temperature difference between the minimum indoor ambient temperature and the set temperature is within a preset temperature difference range. If the temperature difference is within the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the first duration. If the temperature difference is greater than or equal to the upper limit of the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the sum of the first duration and the preset duration correction value. If the temperature difference is less than or equal to the lower limit of the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling cycle is turned on is the difference between the first duration and the preset duration correction value.

[0065] For example, the preset range is -1℃ < tn min -Ts < 1℃; After running at the initial operating frequency for the first duration, and before switching to a lower operating frequency, determine the minimum indoor ambient temperature tn. min The temperature difference between the initial operating frequency F1' and the set temperature Ts is such that when the temperature difference is ≤ -1℃, the continuous operating time t1 of the initial operating frequency F1' decreases by Δt upon the next startup, until -1℃ < tn. min -Ts < 1℃. The advantage of this is that while the room temperature drops rapidly, it avoids excessively low temperatures and large deviations from the user-set temperature, thus improving comfort and achieving energy savings. Similarly, when the temperature difference is ≥ 1℃, the continuous running time t1 of the initial operating frequency F1' increases by Δt upon the next startup, until -1℃ < tn. min -Ts<1℃. Figure 4 A schematic diagram illustrating the average room temperature variation according to the present invention is shown. Figure 4 As shown, curve 1 is the initial room cooling curve, curve 2 is the target room cooling curve, and curve 3 is the room temperature drop curve when the temperature is over-adjusted. Curve 3 shows the phenomenon of temperature over-adjustment. At this time, the duration of the initial operating frequency F1' can be determined by the minimum temperature value and the set temperature value.

[0066] The present invention also provides a storage medium corresponding to the control method of the air conditioner, wherein a computer program is stored thereon, and the program, when executed by a processor, implements the steps of any of the aforementioned methods.

[0067] The present invention also provides an air conditioner corresponding to the control method of the air conditioner, comprising a processor, a memory, and a computer program stored in the memory that can run on the processor, wherein the processor executes the program to implement the steps of any of the aforementioned methods.

[0068] The present invention also provides an air conditioner corresponding to the control device of the air conditioner, including the control device of any of the aforementioned air conditioners.

[0069] Accordingly, the solution provided by this invention shortens the operating time of the air conditioner at the intermediate operating frequency after the temperature drops by increasing the initial operating frequency after the air conditioner is turned on, thereby achieving rapid changes in room temperature, improving user comfort, and also achieving energy savings. Once the operating time at the intermediate operating frequency is shortened to a preset value, the next control directly changes the initial operating frequency to the minimum operating frequency. After the initial operating frequency directly changes to the minimum operating frequency, the difference between the indoor ambient temperature and the set temperature is recorded to shorten or increase the operating time at the next initial operating frequency, thus achieving accurate room temperature control.

[0070] According to the technical solution of the present invention, the air conditioner can achieve rapid cooling and energy saving through continuous optimization control in the user's actual operating scenario. During operation, the air conditioner avoids failing to perform at its optimal capacity under various operating conditions, thus preventing rapid changes in room temperature, improving user comfort, and achieving energy savings.

[0071] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0072] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0073] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0074] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several 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 methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0075] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that, include: After the air conditioner is turned on for cooling, the initial operating frequency of the air conditioner when it was running for cooling under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling this time is obtained, as well as the second duration of the air conditioner running for cooling at the intermediate operating frequency when it was running for cooling under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling this time. Determine whether the second duration of the air conditioner's operation at the intermediate operating frequency when it was running in the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling operation is greater than the preset duration. If it is determined that the second duration is greater than the preset duration, then the preset frequency value is added to the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation. If it is determined that the second duration is less than or equal to the preset duration, then the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation is taken as the initial operating frequency of the air conditioner for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation. The intermediate operating frequency is the operating frequency at which the air conditioner operates at the initial operating frequency until the preset conditions are met, and then reduces the frequency until the temperature difference between the indoor ambient temperature and the set temperature is less than the preset temperature difference threshold. The intermediate operating frequency includes more than one frequency value.

2. The method according to claim 1, characterized in that, Also includes: If the air conditioner previously operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time, then a preset frequency value is added to the initial operating frequency of the air conditioner under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time, and this preset frequency value is used as the initial operating frequency of the air conditioner for the current cooling operation. And / or, If it is determined that the second duration is less than or equal to the preset duration, then after the air conditioner runs for a first duration at the initial operating frequency of this cooling operation, it directly switches to the low-frequency operating frequency of the air conditioner when it last ran cooling under the same indoor and outdoor ambient temperature and set temperature as when this cooling was turned on. Wherein, the first duration is the duration during which the air conditioner last operated at the initial operating frequency under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation; The low-frequency operating frequency is the operating frequency of the air conditioner after it has operated at the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling, until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold.

3. The method according to claim 2, characterized in that, Also includes: After the air conditioner has been running for a first period of time at the initial operating frequency of this cooling operation, the duration for which the air conditioner will run at the same initial operating frequency after the next cooling operation is turned on is determined based on the temperature difference between the minimum indoor ambient temperature and the set temperature.

4. The method according to claim 3, characterized in that, The duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle is determined based on the temperature difference between the minimum indoor ambient temperature and the set temperature, including: If the temperature difference is within the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling start is the first duration. If the temperature difference is greater than or equal to the upper limit of the preset temperature difference range, then the duration for which the air conditioner operates at the same initial operating frequency as this cooling operation after the next cooling start is the sum of the first duration and the preset duration correction value. If the temperature difference is less than or equal to the lower limit of the preset temperature difference range, then the duration for which the air conditioner operates at the same initial operating frequency as this cooling operation after the next cooling start is the difference between the first duration and the preset duration correction value.

5. A control device for an air conditioner, characterized in that, include: The acquisition unit is used to acquire, after the air conditioner is turned on for cooling, the initial operating frequency of the air conditioner when it was previously operating under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling, and the second duration of the air conditioner operating at the intermediate operating frequency when it was previously operating under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for cooling. The judgment unit is used to determine whether the second duration of the air conditioner's operation at the intermediate operating frequency when the air conditioner was running in the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling operation is greater than the preset duration. The control unit is configured to, if the judgment unit determines that the second duration is greater than the preset duration, add a preset frequency value to the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation, and use this preset frequency value as the initial operating frequency of the air conditioner for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation. If the judgment unit determines that the second duration is less than or equal to the preset duration, then the initial operating frequency of the air conditioner when it last operated under the same indoor and outdoor ambient temperature and set temperature as when it started cooling this time is taken as the initial operating frequency of the air conditioner for this cooling operation, so that the air conditioner operates according to the initial operating frequency of this cooling operation. The intermediate operating frequency is the operating frequency at which the air conditioner operates at the initial operating frequency until the preset conditions are met, and then reduces the frequency until the temperature difference between the indoor ambient temperature and the set temperature is less than the preset temperature difference threshold. The intermediate operating frequency includes more than one frequency value.

6. The apparatus according to claim 5, characterized in that, The control unit is also used for: If the air conditioner previously operated under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time, then a preset frequency value is added to the initial operating frequency of the air conditioner under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the first time, and this preset frequency value is used as the initial operating frequency of the air conditioner for the current cooling operation. And / or, If the judgment unit determines that the second duration is less than or equal to the preset duration, then after the air conditioner runs for a first duration at the initial operating frequency of this cooling operation, it directly switches to the low-frequency operating frequency of the air conditioner when it last ran cooling under the same indoor and outdoor ambient temperature and set temperature as when this cooling was turned on. Wherein, the first duration is the duration during which the air conditioner last operated at the initial operating frequency under the same indoor and outdoor ambient temperature and set temperature as when it was turned on for this cooling operation; The low-frequency operating frequency is the operating frequency of the air conditioner after it has operated at the same indoor and outdoor ambient temperature and set temperature as when it was turned on for the current cooling, until the temperature difference between the indoor ambient temperature and the set temperature is less than a preset temperature difference threshold.

7. The apparatus according to claim 6, characterized in that, Also includes: The determining unit is used to determine, based on the temperature difference between the minimum indoor ambient temperature and the set temperature, the duration for which the air conditioner will run at the same initial operating frequency as the current cooling operation after the air conditioner has run for a first duration at the initial operating frequency of the current cooling operation.

8. The apparatus according to claim 7, characterized in that, The determining unit determines, based on the temperature difference between the minimum indoor ambient temperature and the set temperature, the duration for which the air conditioner will operate at the same initial operating frequency as the current cooling operation after the next cooling cycle begins, including: If the temperature difference is within the preset temperature difference range, the duration for which the air conditioner operates at the same initial operating frequency as the current cooling operation after the next cooling start is the first duration. If the temperature difference is greater than or equal to the upper limit of the preset temperature difference range, then the duration for which the air conditioner operates at the same initial operating frequency as this cooling operation after the next cooling start is the sum of the first duration and the preset duration correction value. If the temperature difference is less than or equal to the lower limit of the preset temperature difference range, then the duration for which the air conditioner operates at the same initial operating frequency as this cooling operation after the next cooling start is the difference between the first duration and the preset duration correction value.

9. A storage medium, characterized in that, It stores a computer program that, when executed by a processor, implements the steps of the method according to any one of claims 1-4.

10. An air conditioner, characterized in that, It includes a processor, a memory, and a computer program stored in the memory that can run on the processor, wherein the processor executes the program to implement the steps of the method of any one of claims 1-4, or includes a control device as described in any one of claims 5-8.

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