Control method and device of air conditioner and air conditioner

Abstract

The application relates to the air conditioning technical field, and provides an air conditioner control method and device and the air conditioner, the air conditioner control method comprises the following steps: in the case that the air conditioner is in refrigeration operation, the indoor ring temperature change trend in a preset judgment period is acquired; the difference between the last indoor ring temperature in the indoor ring temperature change trend and the set temperature is less than or equal to a target set value, according to the indoor ring temperature change trend, the indoor fan of the air conditioner is controlled to operate to a target preset rotating speed; wherein the last indoor ring temperature in the indoor ring temperature change trend in a previous preset judgment period is taken as the first indoor ring temperature in the indoor ring temperature change trend in a next preset judgment period. The application can maintain the indoor environment temperature stable, reduce the fluctuation of the indoor environment temperature, thereby achieving the purpose of prolonging the air conditioner indoor unit operation time length, reducing the air conditioner indoor unit start-stop times, and effectively improving the comfort experience of the user.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a control method, device and air conditioner for an air conditioner. Background Technology

[0002] When a residential central air conditioning indoor unit is running in cooling mode, it may shut down when the room temperature reaches the set temperature. After shutting down, the room temperature rises and exceeds the set temperature, at which point the air conditioner restarts. This situation causes the compressor to start and stop frequently, increasing the user's power consumption and causing repeated fluctuations in indoor temperature, resulting in a poor user experience. Summary of the Invention

[0003] This invention provides a control method, device, and air conditioner that can maintain a stable indoor temperature and reduce fluctuations in indoor temperature, thereby extending the operating time of the indoor unit and reducing the number of times the indoor unit starts and stops, effectively improving the user's comfort experience.

[0004] This invention provides a control method for an air conditioner, comprising:

[0005] Under the condition of air conditioner cooling operation, obtain the trend of indoor ambient temperature change within a preset judgment period;

[0006] If the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, the indoor fan of the air conditioner is controlled to run to the target preset speed according to the indoor ambient temperature change trend.

[0007] Among them, the last indoor ambient temperature in the indoor ambient temperature change trend in the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend in the next preset judgment period.

[0008] According to a control method for an air conditioner provided by the present invention, the step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to a target set value, and controlling the indoor fan of the air conditioner to run to a target preset speed based on the indoor ambient temperature change trend, specifically includes:

[0009] The difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is determined to be greater than or equal to the first set value and less than or equal to the target set value:

[0010] If the indoor ambient temperature change trend is greater than the first preset value, control the indoor fan to increase its speed;

[0011] If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, the indoor fan is controlled to continue running at the current speed.

[0012] If the indoor ambient temperature change trend is less than the second preset value, control the indoor fan to reduce its speed.

[0013] According to a control method for an air conditioner provided by the present invention, the step of controlling the indoor fan to increase or decrease its speed specifically includes:

[0014] The speed of the indoor fan can be increased or decreased by one gear.

[0015] According to a control method for an air conditioner provided by the present invention, the step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to a target set value, and controlling the indoor fan of the air conditioner to run to a target preset speed based on the indoor ambient temperature change trend, further includes:

[0016] The difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is determined to be greater than or equal to zero and less than the first set value:

[0017] If the indoor ambient temperature change trend is greater than the first preset value, the indoor fan is controlled to continue running at the current speed.

[0018] If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, control the indoor fan to reduce its speed.

[0019] If the indoor ambient temperature change trend is less than the second preset value, control the indoor fan to reduce its speed.

[0020] According to a control method for an air conditioner provided by the present invention, the step of controlling the indoor fan to reduce its speed specifically includes:

[0021] The operating speed of the indoor fan is reduced by one level.

[0022] According to a control method for an air conditioner provided by the present invention, the step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to a target set value, and controlling the indoor fan of the air conditioner to run to a target preset speed based on the indoor ambient temperature change trend, further includes:

[0023] If the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is greater than or equal to the second set value and less than zero, the indoor fan is controlled to run at the lowest speed.

[0024] According to a control method for an air conditioner provided by the present invention, the control method further includes:

[0025] If the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is greater than the target set value, the indoor fan is controlled to run at the user-set speed.

[0026] According to the control method of an air conditioner provided by the present invention, the step of obtaining the indoor ambient temperature change trend within a preset judgment period specifically includes:

[0027] Within the preset judgment period, the indoor ambient temperature is detected once every first preset duration, and this is repeated multiple times.

[0028] Based on the indoor ambient temperature measured multiple times, the trend of indoor ambient temperature change was obtained, namely:

[0029] ΔT=[(T y -T1)+(T y-1 -T2)+……+(T y / 2+1 -T y / 2 )] / y / 2;

[0030] Where ΔT represents the indoor ambient temperature variation trend; T1, T2...T y The indoor ambient temperature was measured for y times, where y is an even number.

[0031] The present invention also provides a control device for an air conditioner, comprising:

[0032] The acquisition module is used to acquire the indoor ambient temperature change trend within a preset judgment period when the air conditioner is in cooling operation.

[0033] The control module is used to determine that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and to control the indoor fan of the air conditioner to run to the target preset speed according to the indoor ambient temperature change trend.

[0034] Among them, the last indoor ambient temperature in the indoor ambient temperature change trend in the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend in the next preset judgment period.

[0035] The present invention also provides an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the above-described control method for the air conditioner.

[0036] The air conditioner control method, device, and air conditioner provided by this invention can intelligently and automatically adjust the fan speed of the indoor unit based on the trend of indoor ambient temperature changes and the difference between the indoor ambient temperature and the user-set temperature. This balances the required cooling capacity and the cooling capacity provided by the indoor unit. If the indoor ambient temperature changes, the indoor fan speed changes dynamically to maintain a stable indoor ambient temperature and reduce fluctuations. This extends the operating time of the indoor unit, reduces the number of times the indoor unit starts and stops, and effectively improves the user's comfort experience. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in this invention or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is one of the flowcharts illustrating the control method for an air conditioner provided by the present invention;

[0039] Figure 2 This is the second flowchart illustrating the control method for an air conditioner provided by the present invention;

[0040] Figure 3 This is the third flowchart illustrating the control method for an air conditioner provided by the present invention;

[0041] Figure 4 This is the fourth flowchart illustrating the control method for an air conditioner provided by the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of the control device for the air conditioner provided by the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of the air conditioner provided by the present invention.

[0044] Figure label:

[0045] 510: Acquisition module; 520: Control module;

[0046] 610: Processor; 620: Communication interface;

[0047] 630: Memory; 640: Communication bus. Detailed Implementation

[0048] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] The following is combined Figures 1-6 The present invention describes a control method, apparatus, and air conditioner for an air conditioner.

[0052] According to an embodiment of the first aspect of the present invention, referring to Figure 1 As shown, the present invention provides a control method for an air conditioner, which mainly includes the following steps:

[0053] S100. Under the condition of air conditioner cooling operation, obtain the indoor ambient temperature change trend within a preset judgment period.

[0054] Specifically, within the preset judgment period, the indoor ambient temperature is detected once every first preset duration, and this is repeated multiple times.

[0055] Based on multiple measurements of indoor ambient temperature, the trend of indoor ambient temperature changes was obtained, namely:

[0056] ΔT=[(T y -T1)+(T y-1 -T2)+……+(T y / 2+1 -T y / 2 )] / y / 2;

[0057] Where ΔT represents the indoor ambient temperature variation trend; T1, T2...T yThe indoor ambient temperature was measured for y times, where y is an even number.

[0058] For example, when the indoor unit of an air conditioner is running in cooling mode, it starts detecting and storing the indoor ambient temperature 2 minutes after the indoor fan starts running. It detects once every 1 minute, and four consecutive detections constitute a judgment cycle. That is, each preset judgment cycle is 4 minutes. The four detection values ​​are T1, T2, T3, and T4, respectively. Then, the trend of indoor ambient temperature change in each preset judgment cycle is: ΔT=[(T4-T1)+(T3-T2)] / 2.

[0059] S200: Determine that the difference between the last indoor ambient temperature and the set temperature in the indoor ambient temperature change trend is less than or equal to the target set value, and control the indoor fan of the air conditioner to run to the target preset speed according to the indoor ambient temperature change trend.

[0060] Among them, the last indoor ambient temperature T in the indoor ambient temperature change trend within the previous preset judgment period y As the first indoor ambient temperature T1 in the indoor ambient temperature change trend within the next preset judgment period, the continuity of control can be achieved based on the continuity of temperature change, effectively improving control accuracy. Furthermore, the approximate change trend of indoor ambient temperature in the next preset judgment period can be determined based on the indoor ambient temperature change trend of the current preset judgment period, achieving the effect of advance control and effectively improving control efficiency. This allows the indoor ambient temperature to be quickly stabilized, reducing fluctuations and improving the user experience.

[0061] It is understandable that during the operation of an air conditioner in cooling mode, there are multiple preset judgment cycles. Temperature judgment and control are performed once after each preset judgment cycle. For example, if the preset judgment cycle is 4 minutes, the temperature is judged once every 4 minutes.

[0062] Furthermore, as the indoor unit of the air conditioner operates in cooling mode, the indoor ambient temperature gradually decreases. When the indoor ambient temperature decreases to a level where the difference between the indoor ambient temperature and the set temperature is less than or equal to the target set value, i.e. when the indoor ambient temperature is close to the set temperature, the indoor fan of the air conditioner is controlled to run at a suitable speed according to the trend of indoor ambient temperature change. This can maintain the stability of the indoor ambient temperature, reduce fluctuations, and thus extend the running time of the indoor unit and avoid frequent start-stop of the indoor unit.

[0063] Therefore, the air conditioner control method provided in this embodiment of the invention can intelligently and automatically adjust the fan speed of the indoor unit based on the trend of indoor ambient temperature change and the difference between the indoor ambient temperature and the user-set temperature, thereby balancing the cooling capacity required indoors and the cooling capacity provided by the indoor unit. If the indoor ambient temperature changes, the indoor fan speed will change dynamically to maintain the indoor ambient temperature and reduce the fluctuation of the indoor ambient temperature, thereby extending the running time of the indoor unit and reducing the number of times the indoor unit starts and stops, effectively improving the user's comfort experience.

[0064] According to one embodiment of the present invention, referring to Figure 2 As shown, the step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and controlling the indoor fan of the air conditioner to run to the target preset speed based on the indoor ambient temperature change trend, specifically includes:

[0065] S201. Determine that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is greater than or equal to the first set value and less than or equal to the target set value:

[0066] S2011. If the indoor ambient temperature change trend is greater than the first preset value, control the indoor fan to increase the speed.

[0067] S2012. If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, control the indoor fan to continue running at the current speed.

[0068] S2013. If the indoor ambient temperature change trend is less than the second preset value, control the indoor fan to reduce the speed.

[0069] The steps of controlling the indoor fan to increase or decrease its speed include: increasing or decreasing the operating speed of the indoor fan by one gear.

[0070] Specifically, as the air conditioner's indoor unit cools, the indoor ambient temperature gradually decreases. When the difference between the last indoor ambient temperature and the set temperature in the temperature change trend is greater than or equal to the first preset value and less than or equal to the target preset value, that is, when the indoor ambient temperature has decreased to a level close to the set temperature, if the temperature change trend is greater than the first preset value, it indicates that the indoor ambient temperature is trending upward. At this time, the indoor fan speed should be increased, for example, by increasing the fan speed by one level, to lower the temperature and keep the indoor ambient temperature stable. If the temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, it indicates that the indoor ambient temperature fluctuates less and tends to be in a more stable state. At this time, the indoor fan can maintain its current speed. If the temperature change trend is less than the second preset value, it indicates that the indoor ambient temperature is trending downward. At this time, the indoor fan speed should be reduced, for example, by decreasing the fan speed by one level, to raise the temperature and keep the indoor ambient temperature stable.

[0071] According to one embodiment of the present invention, referring to Figure 3 As shown, the step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and controlling the indoor fan of the air conditioner to run to the target preset speed based on the indoor ambient temperature change trend, further includes:

[0072] S202. Determine that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is greater than or equal to zero and less than the first set value:

[0073] S2021. If the indoor ambient temperature change trend is greater than the first preset value, control the indoor fan to continue running at the current speed.

[0074] S2022. If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, control the indoor fan to reduce the speed.

[0075] S2023. If the indoor ambient temperature change trend is less than the second preset value, control the indoor fan to reduce the speed.

[0076] The step of controlling the indoor fan to reduce its speed specifically includes: reducing the operating speed of the indoor fan by one level.

[0077] Specifically, when the difference between the last indoor ambient temperature and the set temperature in the indoor ambient temperature change trend is greater than or equal to zero and less than the first set value, that is, when the indoor ambient temperature drops to be closer to the set temperature, if the indoor ambient temperature change trend is greater than the first preset value, it indicates that the indoor ambient temperature fluctuation is small and tends to be relatively stable. At this time, the indoor fan can maintain its current speed. If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, it indicates that the indoor ambient temperature has a downward trend. At this time, the speed of the indoor fan should be reduced, for example, by reducing the fan speed by one level, to increase the temperature and keep the indoor ambient temperature stable. If the indoor ambient temperature change trend is less than the second preset value, it indicates that the indoor ambient temperature has a further downward trend. At this time, the speed of the indoor fan should be reduced, for example, by reducing the fan speed by one level, to increase the temperature and keep the indoor ambient temperature stable.

[0078] According to one embodiment of the present invention, referring to Figure 4 As shown, the step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and controlling the indoor fan of the air conditioner to run to the target preset speed based on the indoor ambient temperature change trend, further includes:

[0079] S203. If the difference between the last indoor ambient temperature and the set temperature in the indoor ambient temperature change trend is greater than or equal to the second set value and less than zero, control the indoor fan to run at the lowest speed.

[0080] When the difference between the last indoor ambient temperature in the indoor temperature change trend and the set temperature is greater than or equal to the second set value and less than zero, it indicates that the indoor ambient temperature has dropped to basically close to the set temperature. At this time, there is no need to consider the indoor ambient temperature change trend. The indoor fan is then run at the lowest speed to achieve a balance between the cooling capacity provided by the air conditioner indoor unit and the cooling capacity required by the user environment, thereby reducing temperature fluctuations.

[0081] Therefore, according to the trend of indoor ambient temperature change and the temperature difference between indoor ambient temperature and set temperature, the indoor fan speed is controlled to a suitable target value, which can balance the cooling capacity provided by the air conditioner indoor unit with the cooling capacity required by the user environment, thereby stabilizing the indoor ambient temperature, reducing temperature fluctuations, and improving the user experience.

[0082] According to one embodiment of the present invention, referring to Figure 1 As shown, the control method for the air conditioner of the present invention further includes:

[0083] S300: If the difference between the last indoor ambient temperature and the set temperature in the indoor ambient temperature change trend is greater than the target set value, control the indoor fan to run at the user-set speed.

[0084] Specifically, when the air conditioner starts running in cooling mode, if the difference between the last indoor ambient temperature in the trend of indoor ambient temperature change and the set temperature is greater than the target set value, it indicates that the temperature difference between the two is large. At this time, controlling the indoor fan speed to run at the speed set by the user can achieve the purpose of rapid cooling.

[0085] The control method for the air conditioner provided by this invention is described below with reference to a specific example, and generally includes:

[0086] When the air conditioner starts running in cooling mode, if T is met... 环温 -T 设定 If the temperature exceeds 2℃, the indoor fan speed will operate according to the user-set speed to achieve rapid cooling. As the indoor air conditioning unit continues to refrigerate, the indoor ambient temperature T... 环温 Gradually decrease, when the indoor ambient temperature T 环温 Reduce to meet T 环温 -T 设定 When the temperature is ≤2℃, to extend the operating time of the indoor unit and avoid frequent start-stop, the indoor fan speed should be set according to the table below, with the indoor ambient temperature T... 环温 This refers to the last indoor ambient temperature within the preset judgment period (ΔT), which is also the first indoor ambient temperature within the next preset judgment period (ΔT). The purpose is to determine the indoor ambient temperature based on the indoor ambient temperature T. 环温 and set temperature T 设定Based on the temperature difference and the changing trend of indoor ambient temperature, the indoor fan speed is adjusted to a suitable value to achieve a balance between the cooling capacity provided by the indoor air conditioning unit and the cooling capacity required by the user's environment.

[0087]

[0088] In this embodiment of the invention, rapid cooling is achieved in the early stage of cooling. As the cooling operation progresses, when the indoor ambient temperature drops to near the set temperature, the indoor fan speed is adjusted to achieve a balance between the required cooling capacity and the cooling capacity provided by the indoor air conditioner unit. If the indoor ambient temperature changes, the indoor fan speed changes dynamically accordingly, which can maintain the stability of the indoor ambient temperature, reduce temperature fluctuations, thereby extending the operating time of the indoor air conditioner unit, reducing the number of times the indoor air conditioner unit starts and stops, and improving the user experience.

[0089] The control device for an air conditioner provided by the present invention is described below. The control device for an air conditioner described below can be referred to in correspondence with the control method for an air conditioner described above.

[0090] According to an embodiment of the second aspect of the present invention, referring to Figure 5 As shown, the present invention also provides a control device for an air conditioner, mainly comprising: an acquisition module 510 and a control module 520. The acquisition module 510 is used to acquire the indoor ambient temperature change trend within a preset judgment period when the air conditioner is in cooling operation; the control module 520 is used to determine that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and to control the indoor fan of the air conditioner to run to the target preset speed according to the indoor ambient temperature change trend; wherein, the last indoor ambient temperature in the indoor ambient temperature change trend of the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend of the next preset judgment period.

[0091] The control device for an air conditioner provided in this embodiment of the invention can intelligently and automatically adjust the fan speed of the indoor unit based on the trend of indoor ambient temperature change and the difference between the indoor ambient temperature and the user-set temperature. This balances the required cooling capacity and the cooling capacity provided by the indoor unit to maintain the indoor ambient temperature and reduce fluctuations in the indoor ambient temperature. As a result, the device extends the operating time of the indoor unit and reduces the number of times the indoor unit starts and stops, effectively improving the user's comfort experience.

[0092] According to an embodiment of the third aspect of the present invention, referring to Figure 6As shown, the present invention also provides an air conditioner, which may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other through the communication bus 640. The processor 610 can call logical instructions in the memory 630 to execute a control method for the air conditioner, the method including: when the air conditioner is in cooling operation, acquiring the indoor ambient temperature change trend within a preset judgment period; determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to a target set value; and controlling the indoor fan of the air conditioner to run to a target preset speed according to the indoor ambient temperature change trend; wherein the last indoor ambient temperature in the indoor ambient temperature change trend of the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend of the next preset judgment period.

[0093] Furthermore, the logical instructions in the aforementioned memory 630 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a 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, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0094] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method for an air conditioner provided by the above methods. The method includes: acquiring the indoor ambient temperature change trend within a preset judgment period when the air conditioner is in cooling operation; determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to a target set value; and controlling the indoor fan of the air conditioner to run to a target preset speed according to the indoor ambient temperature change trend; wherein the last indoor ambient temperature in the indoor ambient temperature change trend of the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend of the next preset judgment period.

[0095] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method for an air conditioner provided by the above methods. The method includes: acquiring the indoor ambient temperature change trend within a preset judgment period when the air conditioner is in cooling operation; determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and a set temperature is less than or equal to a target set value; and controlling the indoor fan of the air conditioner to run to a target preset speed according to the indoor ambient temperature change trend; wherein the last indoor ambient temperature in the indoor ambient temperature change trend within the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend within the next preset judgment period.

[0096] The device embodiments described above are merely illustrative. 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 modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0097] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, include: Under the condition of air conditioner cooling operation, obtain the trend of indoor ambient temperature change within a preset judgment period; If the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, the indoor fan of the air conditioner is controlled to run to the target preset speed according to the indoor ambient temperature change trend. Among them, the last indoor ambient temperature in the indoor ambient temperature change trend within the previous preset judgment period is taken as the first indoor ambient temperature in the indoor ambient temperature change trend within the next preset judgment period. The step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and controlling the indoor fan of the air conditioner to run to the target preset speed based on the indoor ambient temperature change trend, specifically includes: The difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is determined to be greater than or equal to the first set value and less than or equal to the target set value: If the indoor ambient temperature change trend is greater than the first preset value, control the indoor fan to increase its speed; If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, the indoor fan is controlled to continue running at the current speed. If the indoor ambient temperature change trend is less than the second preset value, control the indoor fan to reduce its speed; The step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and controlling the indoor fan of the air conditioner to run to the target preset speed based on the indoor ambient temperature change trend, further includes: The difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is determined to be greater than or equal to zero and less than the first set value: If the indoor ambient temperature change trend is greater than the first preset value, the indoor fan is controlled to continue running at the current speed. If the indoor ambient temperature change trend is greater than or equal to the second preset value and less than or equal to the first preset value, control the indoor fan to reduce its speed. If the indoor ambient temperature change trend is less than the second preset value, control the indoor fan to reduce its speed.

2. The control method for an air conditioner according to claim 1, characterized in that, The steps of controlling the indoor fan to increase or decrease its speed specifically include: The speed of the indoor fan can be increased or decreased by one gear.

3. The control method for an air conditioner according to claim 1, characterized in that, The steps of controlling the indoor fan to reduce its speed specifically include: The operating speed of the indoor fan is reduced by one level.

4. The control method for an air conditioner according to claim 1, characterized in that, The step of determining that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and controlling the indoor fan of the air conditioner to run to the target preset speed based on the indoor ambient temperature change trend, further includes: If the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is greater than or equal to the second set value and less than zero, the indoor fan is controlled to run at the lowest speed.

5. The control method for an air conditioner according to any one of claims 1-4, characterized in that, The control method further includes: If the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is greater than the target set value, the indoor fan is controlled to run at the user-set speed.

6. The control method for an air conditioner according to any one of claims 1-4, characterized in that, The steps for obtaining the indoor ambient temperature change trend within a preset judgment period include: Within the preset judgment period, the indoor ambient temperature is detected once every first preset duration, and this is repeated multiple times. Based on the indoor ambient temperature measured multiple times, the trend of indoor ambient temperature change was obtained, namely: ΔT=[(T y -T1)+(T y-1 -T2)+……+(T y / 2+1 -T y / 2 )] / y / 2; Where ΔT represents the indoor ambient temperature variation trend; T1, T2...T y The indoor ambient temperature was measured for y times, where y is an even number.

7. A control device for an air conditioner, applied to the control method of the air conditioner as described in any one of claims 1 to 6, characterized in that, include: The acquisition module is used to acquire the indoor ambient temperature change trend within a preset judgment period when the air conditioner is in cooling operation. The control module is used to determine that the difference between the last indoor ambient temperature in the indoor ambient temperature change trend and the set temperature is less than or equal to the target set value, and to control the indoor fan of the air conditioner to run to the target preset speed according to the indoor ambient temperature change trend. Among them, the last indoor ambient temperature in the indoor ambient temperature change trend in the previous preset judgment period is used as the first indoor ambient temperature in the indoor ambient temperature change trend in the next preset judgment period.

8. An air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the control method of the air conditioner as described in any one of claims 1-6.

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