Air conditioner control method and device and air conditioner

Abstract

Embodiments of the present application provide an air conditioner control method, device and air conditioner, and relate to the technical field of air conditioners. The air conditioner control method comprises: obtaining a running duration of the air conditioner, wherein the running duration represents a duration from when the air conditioner is restarted after temperature-reached shutdown to when the air conditioner is temperature-reached shutdown; obtaining a shutdown duration of the air conditioner, wherein the shutdown duration represents a duration from when the air conditioner is temperature-reached shutdown to when the air conditioner is restarted; determining whether the frequency of temperature-reached shutdown of the air conditioner exceeds a preset frequency according to the running duration and the shutdown duration; if so, controlling the frequency of the compressor to be reduced or the rotating speed of the indoor fan to be reduced according to the running duration and the shutdown duration, so as to reduce the frequency of temperature-reached shutdown. The air conditioner control method reduces the frequency of temperature-reached shutdown by limiting the capacity and the temperature change rate, avoids repeated start and stop of the air conditioner, reduces the room temperature fluctuation, and improves the thermal sensation and temperature control accuracy.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner control method, device, and air conditioner. Background Technology

[0002] When an air conditioner operates at excessive capacity, causing room temperature fluctuations far exceeding the set temperature, relevant technologies can limit cooling output by reducing the air conditioner's frequency or even shutting it down. When cooling occurs too quickly, the air conditioner may repeatedly turn on and off. This repeated starting and stopping of the unit results in intermittent operating noise and fluctuating perceived temperature, affecting user comfort. Summary of the Invention

[0003] The problem solved by this invention is that the repeated starting and stopping of air conditioners affects the user's physical experience and sound perception.

[0004] To address the above problems, embodiments of the present invention provide an air conditioner control method, device, and air conditioner.

[0005] In a first aspect, embodiments of the present invention provide an air conditioner control method, comprising: The running time of the air conditioner is obtained, wherein the running time represents the time from when the air conditioner restarts after reaching the temperature and stopping to when the air conditioner reaches the temperature and stops. The downtime of the air conditioner is obtained, wherein the downtime represents the time from when the air conditioner stops operating after reaching the set temperature until the air conditioner resumes operation. Based on the running time and the shutdown time, it is determined whether the frequency of the air conditioner reaching the temperature and then shutting down exceeds the preset frequency; If the frequency of shutdown upon reaching the set temperature exceeds the preset frequency, the compressor frequency or the indoor fan speed will be reduced based on the running time and the shutdown time, so as to reduce the frequency of shutdown upon reaching the set temperature.

[0006] The air conditioner control method provided in this embodiment of the invention determines whether the frequency of temperature-reaching shutdown exceeds a preset frequency based on the running time and shutdown time. When the frequency of temperature-reaching shutdown exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced according to the different running time and shutdown time. In this way, by limiting the capacity and temperature change rate, the frequency of temperature-reaching shutdown is reduced, avoiding repeated start-stop of the air conditioner, reducing room temperature fluctuations, and improving the comfort and temperature control accuracy.

[0007] Further, in an optional implementation, the step of controlling the compressor frequency reduction based on the runtime and the downtime includes: If the ratio of the downtime to the running time is greater than a first preset ratio, then the frequency of the compressor is controlled to be adjusted to N times the frequency of the last running time, where N is greater than 0 and less than 1.

[0008] Furthermore, in an optional implementation, if the ratio of the downtime to the running time is greater than the first preset ratio, the value of N decreases accordingly as the ratio of the downtime to the running time decreases.

[0009] Further, in an optional implementation, the step of controlling the reduction of the indoor fan speed based on the running time and the shutdown time includes: If the ratio of the downtime to the running time is greater than the second preset ratio and less than or equal to the first preset ratio, then the speed of the indoor fan is controlled to decrease to a preset speed.

[0010] Furthermore, in an optional embodiment, when the ratio of the downtime to the running time is greater than the second preset ratio and less than or equal to the first preset ratio, the rotational speed of the indoor fan decreases accordingly as the ratio of the downtime to the running time decreases.

[0011] Furthermore, in an optional implementation, if the ratio of the downtime to the running time is less than or equal to a second preset ratio, the operating parameters of the air conditioner are kept unchanged.

[0012] Further, in an optional implementation, the step of determining whether the air conditioner's temperature-reaching shutdown frequency exceeds a preset frequency based on the running time and the shutdown time includes: The downtime cycle duration is obtained by summing the runtime and the downtime. Determine whether the downtime period is less than a preset duration; If the downtime cycle is less than the preset duration, then the frequency of downtime upon reaching the set temperature exceeds the preset frequency.

[0013] Furthermore, in an optional implementation, the method further includes: If the downtime cycle is greater than or equal to the preset duration, it is determined that the frequency of downtime upon reaching the set temperature does not exceed the preset frequency, and the operating parameters of the air conditioner are controlled to remain unchanged.

[0014] In a second aspect, embodiments of the present invention provide an air conditioner control device, comprising: The first acquisition module is used to acquire the running time of the air conditioner, wherein the running time represents the time from when the air conditioner restarts after reaching the temperature and stopping to when the air conditioner reaches the temperature and stops. The second acquisition module is used to acquire the downtime of the air conditioner, wherein the downtime represents the time from when the air conditioner stops operating at the set temperature to when it resumes operation. The judgment module is used to determine whether the frequency of the air conditioner stopping when it reaches the set temperature exceeds a preset frequency based on the running time and the shutdown time. The control module is used to reduce the frequency of compressor shutdown or reduce the speed of indoor fan based on the running time and the shutdown time if the frequency of shutdown after reaching the temperature exceeds the preset frequency, so as to reduce the frequency of shutdown after reaching the temperature.

[0015] The technical effects of the air conditioner control device provided in this embodiment of the invention are similar to those of the air conditioner control method provided in this embodiment of the invention. When the frequency of stopping the air conditioner when reaching the set temperature exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced according to the different running time and stopping time. In this way, by limiting the capacity and the rate of temperature change, the frequency of stopping the air conditioner when reaching the set temperature is reduced, avoiding repeated start-stop of the air conditioner, reducing room temperature fluctuations, and improving the comfort and temperature control accuracy.

[0016] Thirdly, embodiments of the present invention provide an air conditioner, including a controller, the controller being configured to execute a computer program to implement the air conditioner control method as described in any of the foregoing embodiments.

[0017] The technical effects of the air conditioner provided in this embodiment of the invention are similar to those of the air conditioner control method provided in this embodiment of the invention. When the frequency of stopping when reaching the temperature exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced according to the different running time and stopping time. In this way, by limiting the capacity and the rate of temperature change, the frequency of stopping when reaching the temperature is reduced, avoiding repeated start-stop of the air conditioner, reducing room temperature fluctuations, and improving the comfort and temperature control accuracy. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the air conditioner control method provided in an embodiment of the present invention. Figure 2 for Figure 1 A flowchart illustrating the sub-steps of step S300 in the process; Figure 3 for Figure 1 A flowchart illustrating the sub-steps of step S400 in the process; Figure 4 This is a schematic block diagram of the structure of an air conditioner control device provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 200 - Air conditioner control device; 210 - First acquisition module; 220 - Second acquisition module; 230 - Judgment module; 240 - Control module. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] To address the issue of repeated start-stop cycles in air conditioners affecting user comfort and sound perception in related technologies, this invention provides an air conditioner control method, device, and air conditioner. By limiting the air conditioner's capacity and temperature change rate, the frequency of temperature-reaching shutdowns can be reduced, thus avoiding repeated start-stop cycles, minimizing room temperature fluctuations, and improving comfort and temperature control accuracy.

[0022] Please see Figure 1 This air conditioner control method is applied to an air conditioner, which may be an inverter air conditioner. This air conditioner control method can be applied to various modes in the air conditioner, such as cooling mode and heating mode. The following is a specific explanation using the application of this air conditioner control method in the cooling mode as an example. The air conditioner control method includes the following steps: Step S100: Obtain the running time of the air conditioner, where the running time represents the time from when the air conditioner restarts after reaching the temperature and shutting down to when the air conditioner reaches the temperature and shuts down again.

[0023] It should be noted that after the air conditioner responds to the user's command and starts cooling, it records the room temperature and the user's set temperature. After a period of time, the air conditioner enters the temperature-reaching shutdown state for the first time. In this embodiment, when the set temperature minus the room temperature is ≥2℃, it can be considered that the set temperature has been reached, and the air conditioner stops at the temperature, and the compressor stops (hereinafter, this situation is referred to as temperature-reaching shutdown). After this, when the set temperature minus the room temperature is ≤1℃, it can be considered that there is a cooling demand, and the air conditioner restarts, and the compressor resumes operation (hereinafter, this situation is referred to as restarting). After running for a period of time, the air conditioner again reaches the temperature and shuts down; after shutting down for a period of time, the air conditioner restarts again... and so on, forming an operating process of initial startup, initial temperature-reaching shutdown, restarting, temperature-reaching shutdown, restarting... from the moment it starts running.

[0024] In step S100, the runtime represents the duration of the air conditioner's operation from the start of the recovery shutdown after any temperature-reaching shutdown until the next temperature-reaching shutdown. The runtime can be represented by Y and can be used in the judgment and control logic of subsequent steps. Because the runtime is calculated from the start of the recovery shutdown, the air conditioner has already experienced at least one temperature-reaching shutdown, causing the room temperature to reach near the set temperature. This results in a more stable room temperature and higher control accuracy in subsequent control processes.

[0025] In this embodiment, the control logic of the air conditioner control method provided in this embodiment can be entered upon restarting after the initial temperature-reaching shutdown, at which point the runtime Y is recorded. This allows the control logic to be entered after the initial temperature-reaching shutdown and when the room temperature is relatively stable, resulting in more accurate control and helping to reduce the frequency of temperature-reaching shutdowns in a timely manner.

[0026] Step S200: Obtain the downtime of the air conditioner, where the downtime represents the time from when the air conditioner stops operating at the set temperature until it restarts.

[0027] It should be noted that from the moment the air conditioner first reaches the set temperature and shuts down, until it restarts, it undergoes one complete shutdown until it restarts again. This period can be considered a shutdown cycle, and subsequent shutdown cycles follow the same pattern. Within any shutdown cycle, the shutdown duration is always after the running duration. For example, the running duration is counted from the start of the restart shutdown after reaching the set temperature until the next shutdown, while the shutdown duration is counted from the start of the next shutdown after reaching the set temperature until the next restart. The shutdown duration is denoted by T and can be used in the judgment and control logic of subsequent steps.

[0028] Step S300: Determine whether the frequency of the air conditioner stopping when it reaches the set temperature exceeds the preset frequency based on the running time and the shutdown time.

[0029] In step S300, the frequency of temperature-reaching shutdown refers to the frequency at which the air conditioner stops operating when it reaches the set temperature during the entire air conditioning process. The preset frequency is a pre-defined value that can be set according to actual needs. If the temperature-reaching shutdown frequency exceeds the preset frequency, it can be considered that the temperature-reaching shutdown is too frequent. Frequent start-stop cycles will cause intermittent noise from the air conditioner and repeated fluctuations in perceived temperature, affecting user comfort. The operating time and shutdown duration can accurately determine whether the temperature-reaching shutdown frequency exceeds the preset frequency, allowing for subsequent control to reduce the frequency of temperature-reaching shutdown. Here, the operating time and shutdown duration refer to the operating time and shutdown duration within the same shutdown cycle.

[0030] Please see Figure 2In order to improve the accuracy of the determination of the frequency of shutdown when the temperature is reached, in this embodiment, step S300 may include the following sub-steps S310 to S340.

[0031] Sub-step S310: Calculate the sum of runtime and downtime to obtain the downtime cycle duration.

[0032] In sub-step S310, the sum of the running time and the downtime within the same downtime cycle is calculated to obtain the downtime cycle duration. The downtime cycle duration can be represented by T0, then T0 = Y + T.

[0033] Sub-step S320: Determine whether the downtime cycle is less than the preset duration.

[0034] In sub-step S320, the preset duration is a preset value, which is set according to actual needs. In this embodiment, the preset duration can be selected as 1 hour. For example, it can be determined whether T0 = Y + T < 1 hour is satisfied.

[0035] In sub-step S330, if the downtime cycle is less than the preset duration, it is determined that the frequency of downtime upon reaching the temperature exceeds the preset frequency.

[0036] In sub-step S330, if the downtime cycle is less than the preset duration, for example, T0=Y+T<1h, it can be considered that the machine will reach the temperature and stop once within the preset duration of 1h. The downtime cycle is short and the temperature-reaching downtime is frequent. At this time, it can be determined that the temperature-reaching downtime frequency exceeds the preset frequency, and then the subsequent step S400 is executed to reduce the temperature-reaching downtime frequency.

[0037] In sub-step S340, if the downtime cycle is greater than or equal to the preset duration, it is determined that the frequency of downtime upon reaching the temperature does not exceed the preset frequency, and the operating parameters of the air conditioner are kept unchanged.

[0038] In sub-step S340, if the shutdown cycle length is greater than or equal to the preset duration, for example, T0=Y+T≥1h, it can be considered that a start-stop control will only be performed once the preset duration is more than 1h. The shutdown cycle is relatively long, and the shutdown when the temperature is reached is not frequent, which has little impact on the user experience. At this time, it is determined that the shutdown frequency when the temperature is reached does not exceed the preset frequency, and the operating parameters of the air conditioner are kept unchanged.

[0039] It should be noted that after step S300, if it has been determined that the frequency of temperature-reaching shutdown has not exceeded the preset frequency, the same step of keeping the operating parameters of the air conditioner unchanged will be performed.

[0040] Please continue reading. Figure 1 The air conditioner control method also includes step S400.

[0041] In step S400, if the frequency of shutdown upon reaching the temperature exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced based on the running time and shutdown time, so as to reduce the frequency of shutdown upon reaching the temperature.

[0042] In step S400, if the frequency of temperature-reaching shutdown exceeds a preset frequency, it can be considered that the temperature-reaching shutdown is too frequent. Depending on the operating and shutdown durations, the compressor frequency or the indoor fan speed is reduced accordingly. In this way, by controlling the compressor frequency or the indoor fan speed to reduce capacity and temperature change rate, the frequency of temperature-reaching shutdown is reduced, avoiding repeated start-stop cycles of the air conditioner, reducing room temperature fluctuations, and improving comfort and temperature control accuracy.

[0043] It should be noted that the downtime can indirectly reflect the heat input to the room; that is, during the downtime, the external environment causes the room temperature to rise. The running time can indirectly reflect the heat removed by the air conditioner; that is, during the running time, the air conditioner's cooling capacity, after offsetting the external heat input, can still bring the room temperature to the set temperature. In this embodiment of the invention, based on the difference between the room's heat input and the air conditioner's heat removal, by controlling the compressor frequency or the indoor fan speed to reduce these differences, the room's heat input and the air conditioner's heat removal can be made as equal as possible, thereby reducing the frequency of shutdown upon reaching the set temperature.

[0044] Please see Figure 3 Furthermore, in order to improve the accuracy of control, step S400 may include the following sub-steps S410 to S440.

[0045] Sub-step S410: Determine whether the ratio of downtime to running time is greater than the first preset ratio.

[0046] It should be noted that since the downtime can indirectly reflect the heat input to the room, and the running time can indirectly reflect the heat removed by the air conditioner, the ratio of downtime to running time can indirectly reflect the relationship between the heat input to the room and the heat removed by the air conditioner. The ratio of downtime to running time can be represented by i. The first preset ratio is a preset value that can be set according to actual needs. In this embodiment, the first preset ratio can be selected as 0.5, i.e., whether the ratio i = T / Y > 0.5 is satisfied.

[0047] In sub-step S420, if the ratio of the shutdown duration to the running duration is greater than the first preset ratio, the frequency of the compressor is adjusted to N times the frequency of the last running operation, where N is greater than 0 and less than 1.

[0048] In sub-step S420, if the ratio of the shutdown duration to the operating duration is greater than a first preset ratio, it can be considered that the heat input to the room and the heat removed by the air conditioner are not equivalent within the same shutdown cycle, and the repeated start-stop situation is relatively serious. At this time, the compressor frequency can be adjusted to N times the frequency of the last operation (the air conditioner was in operation before reaching the temperature and shutting down), thereby reducing the compressor frequency, while the other air conditioner operating parameters remain unchanged. Here, N is a preset value, which is set according to actual needs. In this embodiment, optionally, N=80%, that is, the compressor frequency is adjusted to 80% of the frequency of the last operation. In this way, with the shutdown duration T unchanged, the operating duration Y is extended, which increases the shutdown cycle duration T0=(Y+T), and the ratio i=T / Y decreases, thereby achieving the effect of reducing the frequency of shutdown when reaching the temperature.

[0049] Furthermore, in order to improve the accuracy of control and better address the problem of repeated start-stop cycles, when the ratio of shutdown duration to running duration is greater than the first preset ratio, the value of N increases accordingly as the ratio of shutdown duration to running duration decreases.

[0050] In other words, when executing sub-step S420, the smaller the ratio i of the downtime to the running time, the larger the value of N can be within a certain frequency range. For example, as the ratio i decreases, the value of N can be 80%, 85%, 90%, 95%, etc. To prevent the reduction in air conditioning capacity from being too small, N can optionally be set to be greater than or equal to 80% and less than 1.

[0051] Sub-step S430: If the ratio of downtime to running time is less than or equal to the first preset ratio, then determine whether the ratio of downtime to running time is greater than the second preset ratio and less than or equal to the first preset ratio.

[0052] In sub-step S430, the second preset ratio is a preset value, which can be set as needed. The second preset ratio is less than the first preset ratio. Optionally, the second preset ratio can be 0.3. In this embodiment, it is determined whether 0.3 < i = T / Y ≤ 0.5 is satisfied.

[0053] In sub-step S440, if the ratio of the downtime to the running time is greater than the second preset ratio and less than or equal to the first preset ratio, the speed of the indoor fan is reduced to a preset speed.

[0054] In sub-step S440, if the ratio of the shutdown duration to the operating duration is greater than the second preset ratio and less than or equal to the first preset ratio (e.g., satisfying 0.3 < i = T / Y ≤ 0.5), it can be considered that the heat input to the room and the heat removed by the air conditioner are not equivalent within the same shutdown cycle. Furthermore, the repeated start-stop situation is not as severe as the situation where the ratio i is greater than the first preset ratio. Therefore, to avoid excessive reduction in the heat removed by the air conditioner due to frequency reduction, the indoor fan speed can be reduced to a preset speed, while other air conditioner operating parameters remain unchanged. This limited reduction in speed results in a lower decrease in heat exchange than the decrease in heat exchange caused by frequency reduction. This ensures the cooling effect in the room while extending the operating duration Y without changing the shutdown duration T, thus improving the problem of repeated start-stop.

[0055] It should be noted that the preset speed is a preset value and can be set as needed. In this embodiment, the preset speed can be set to 50 rpm, which means that the indoor fan speed is reduced by 50 rpm, while the other air conditioner operating parameters remain unchanged.

[0056] Furthermore, in order to improve the accuracy of control and better address the issue of repeated start-stop cycles, when the ratio of shutdown duration to operating duration is greater than the second preset ratio but less than or equal to the first preset ratio, the preset speed at which the indoor fan speed decreases is correspondingly reduced as the ratio of shutdown duration to operating duration decreases.

[0057] In other words, when executing sub-step S440, the smaller the ratio i of the shutdown duration to the running duration, the smaller the preset speed at which the indoor fan speed can be reduced within a certain speed range. For example, as the ratio i decreases, the preset speed can be 50 rpm, 40 rpm, 30 rpm, 20 rpm, etc.

[0058] The air conditioner control method also includes step S500.

[0059] In step S500, if the ratio of the shutdown duration to the running duration is less than or equal to the second preset ratio, the operating parameters of the air conditioner are kept unchanged.

[0060] It should be noted that after sub-step S430, if the result of the judgment is negative, that is, the ratio i is less than or equal to the second preset ratio, for example, the ratio i ≤ 0.3, then it can be considered that the start and stop of the air conditioner is not frequent, and at this time the operating parameters of the air conditioner can be kept unchanged.

[0061] Additionally, it should be noted that in the above steps, once the cooling parameters (compressor frequency, indoor fan speed) drop to their lower limit, no further adjustments will be made. After executing the above adjustment control logic, cooling operation will resume, and the running time and downtime will continue to be recorded. This cycle will continue until the user adjusts the air conditioner's settings (such as temperature, fan speed, mode, etc.).

[0062] In summary, the air conditioner control method provided by this invention determines whether the frequency of temperature-reaching shutdown exceeds a preset frequency by measuring the running time and shutdown time. When the frequency of temperature-reaching shutdown exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced according to the different running time and shutdown time. In this way, by limiting the capacity and temperature change rate, the frequency of temperature-reaching shutdown is reduced, avoiding repeated start-stop of the air conditioner, reducing room temperature fluctuations, improving the problem of excessive start-stop noise, improving the comfort and temperature control accuracy, and eliminating the need for additional sensors.

[0063] Please see Figure 4 To execute the possible steps of the air conditioner control method provided in the above embodiments, this embodiment of the invention provides an air conditioner control device 200, applied to an air conditioner, for executing the above-described air conditioner control method. It should be noted that the basic principle and technical effects of the air conditioner control device 200 provided in this embodiment are basically the same as those in the above embodiments. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in the above embodiments.

[0064] The air conditioner control device 200 provided in this embodiment of the invention includes a first acquisition module 210, a second acquisition module 220, a judgment module 230, and a control module 240.

[0065] The first acquisition module 210 is used to acquire the running time of the air conditioner, wherein the running time represents the time from when the air conditioner restarts after reaching the temperature and stopping until it reaches the temperature and stops.

[0066] In this embodiment, the first acquisition module 210 is used to execute step S100 in the above method to achieve the corresponding technical effect.

[0067] The second acquisition module 220 is used to acquire the downtime of the air conditioner, wherein the downtime represents the time from when the air conditioner stops operating at the set temperature to when it restarts.

[0068] In this embodiment, the second acquisition module 220 is used to execute step S200 in the above method to achieve the corresponding technical effect.

[0069] The judgment module 230 is used to determine whether the frequency of the air conditioner reaching the temperature and stopping exceeds the preset frequency based on the running time and the shutdown time.

[0070] In this embodiment, the judgment module 230 is used to execute step S300 and its sub-steps in the above method to achieve the corresponding technical effect.

[0071] The control module 240 is used to control the compressor frequency to decrease or control the indoor fan speed to decrease if the frequency of shutdown upon reaching the temperature exceeds the preset frequency, based on the running time and the shutdown time, so as to reduce the frequency of shutdown upon reaching the temperature.

[0072] In this embodiment, the control module 240 is used to execute step S400 and its sub-steps in the above method to achieve the corresponding technical effect.

[0073] The control module 240 is used to keep the operating parameters of the air conditioner unchanged if the ratio of the downtime to the running time is less than or equal to a second preset ratio.

[0074] In this embodiment, the control module 240 is used to execute step S500 in the above method to achieve the corresponding technical effect.

[0075] In addition, embodiments of the present invention also provide an air conditioner, including a controller, which is used to execute computer instructions to implement the air conditioner control method provided in the embodiments of the present invention.

[0076] The controller can be an integrated circuit chip with signal processing capabilities. The aforementioned controller can be a general-purpose processor, including a central processing unit (CPU), or a microcontroller, microcontroller unit (MCU), complex programmable logic device (CPLD), field-programmable gate array (FPGA), application-specific integrated circuit (ASIC), embedded ARM, etc. The controller can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention.

[0077] In one feasible implementation, the air conditioner may further include a memory for storing program instructions executable by the controller. For example, the air conditioner control device 200 provided in this application embodiment includes at least one programmable instruction stored in the memory in the form of software or firmware. The memory may be a separate external memory, including but not limited to Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and Electrically Erasable Programmable Read-Only Memory (EEPROM). The memory may also be integrated with the controller; for example, the memory may be integrated with the controller within the same chip.

[0078] In summary, the air conditioner control method, device, and air conditioner provided in this embodiment of the invention determine whether the frequency of temperature-reaching shutdown exceeds a preset frequency by measuring the running time and shutdown time. When the frequency of temperature-reaching shutdown exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced according to the different running time and shutdown time. In this way, by limiting the capacity and temperature change rate, the frequency of temperature-reaching shutdown is reduced, avoiding repeated start-stop of the air conditioner, reducing room temperature fluctuations, improving the problem of excessive start-stop noise, improving the comfort and temperature control accuracy, and without the need for additional sensors.

[0079] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0080] In addition, the functional modules in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0081] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a portion 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 this 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.

[0082] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An air conditioner control method, characterized in that, include: The running time of the air conditioner is obtained, wherein the running time represents the time from when the air conditioner restarts after reaching the temperature and stopping to when the air conditioner reaches the temperature and stops. The downtime of the air conditioner is obtained, wherein the downtime represents the time from when the air conditioner stops operating after reaching the set temperature until the air conditioner resumes operation. Based on the running time and the shutdown time, it is determined whether the frequency of the air conditioner reaching the temperature and then shutting down exceeds the preset frequency; If the frequency of shutdown upon reaching the set temperature exceeds the preset frequency, the compressor frequency is reduced or the indoor fan speed is reduced based on the running time and the shutdown time, so as to reduce the frequency of shutdown upon reaching the set temperature. The step of controlling the compressor frequency reduction based on the running time and the downtime includes: If the ratio of the downtime to the running time is greater than a first preset ratio, then the frequency of the compressor is controlled to be adjusted to N times the frequency of the last running time, where N is greater than 0 and less than 1. The step of controlling the indoor fan speed reduction based on the running time and the shutdown time includes: If the ratio of the downtime to the running time is greater than the second preset ratio and less than or equal to the first preset ratio, then the speed of the indoor fan is controlled to decrease by a preset speed. If the ratio of the downtime to the running time is less than or equal to the second preset ratio, the operating parameters of the air conditioner are kept unchanged. The step of determining whether the frequency of the air conditioner reaching the temperature and stopping exceeds the preset frequency based on the running time and the downtime includes: The downtime cycle duration is obtained by summing the runtime and the downtime. Determine whether the downtime period is less than a preset duration; If the downtime cycle is less than the preset duration, then the frequency of downtime upon reaching the set temperature exceeds the preset frequency.

2. The air conditioner control method according to claim 1, characterized in that, When the ratio of the downtime to the running time is greater than the first preset ratio, the value of N increases accordingly as the ratio of the downtime to the running time decreases.

3. The air conditioner control method according to claim 1, characterized in that, When the ratio of the downtime to the running time is greater than the second preset ratio and less than or equal to the first preset ratio, the preset speed at which the indoor fan speed decreases decreases as the ratio of the downtime to the running time decreases.

4. The air conditioner control method according to claim 1, characterized in that, The method further includes: If the downtime cycle is greater than or equal to the preset duration, it is determined that the frequency of downtime upon reaching the set temperature does not exceed the preset frequency, and the operating parameters of the air conditioner are controlled to remain unchanged.

5. An air conditioner control device, characterized in that, For performing the air conditioner control method as described in any one of claims 1-4, the air conditioner control device comprises: The first acquisition module is used to acquire the running time of the air conditioner, wherein the running time represents the time from when the air conditioner restarts after reaching the temperature and stopping to when the air conditioner reaches the temperature and stops. The second acquisition module is used to acquire the downtime of the air conditioner, wherein the downtime represents the time from when the air conditioner stops operating at the set temperature to when it resumes operation. The judgment module is used to determine whether the frequency of the air conditioner stopping when it reaches the set temperature exceeds a preset frequency based on the running time and the shutdown time. The control module is used to reduce the frequency of compressor shutdown or reduce the speed of indoor fan based on the running time and the shutdown time if the frequency of shutdown after reaching the temperature exceeds the preset frequency, so as to reduce the frequency of shutdown after reaching the temperature.

6. An air conditioner, characterized in that, It includes a controller for executing a computer program to implement the air conditioner control method as described in any one of claims 1-4.

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