An air conditioner control method, device, system and air conditioner

Abstract

The application discloses an air conditioner control method, device, system and air conditioner, and belongs to the air conditioner control field. The air conditioner control method comprises the following steps: when power interruption occurs in operation and power is reconnected, it is determined whether to enter a power correction mode based on an operation mode of the air conditioner, an outdoor environment temperature and an actual current; when the power correction mode is entered, a limit current is determined based on a current power interruption frequency and an effective current, wherein the limit current is less than the effective current; finally, the air conditioner is controlled to start operation, and the actual current is controlled to be the limit current. According to the application, whether to enter the power correction mode is determined based on actual demand when power interruption occurs in operation and power is reconnected, and after the power correction mode is entered, the actual current of the air conditioner is actively reduced to limit operation power, so that the probability of power tripping caused by large load operation in a short time is reduced, the satisfaction of users with intelligent use of the air conditioner is improved, and the competitiveness of a brand product is maintained.

Description

Technical Field

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

[0002] When users select circuit breakers for their home's electrical control box, they usually leave a certain margin of safety. However, as users add more electrical appliances or multiple high-power appliances operate under high load simultaneously, the mains power sometimes trips. Even after power is restored and the preceding loads are kept running, the power still trips. Because the electrical control box is designed with maximum power and effective protection in mind, it's difficult to balance this with occasional overload conditions. Therefore, users tend to avoid running high-power loads to prevent the power from tripping.

[0003] Air conditioners, as basic household appliances in modern society, provide heating in summer and cooling in summer, effectively regulating indoor temperature to achieve comfortable operation. They are frequently used appliances. In actual operation, during the off-season, multiple air conditioners may be running for heating, while other high-load appliances such as induction cookers and electric heaters are also used simultaneously. In summer, during midday, multiple air conditioners may be running for cooling while other appliances are operating. In both of these situations, the operating power may far exceed the capacity of the electrical control box switch, causing a power outage. Even after the user turns the power back on, if the previous high-load appliances continue to run, the power outage may still occur, or the user may reduce the number of operating appliances to avoid a power outage. If the air conditioner could autonomously limit its operating power in such situations, reducing the probability of power outages caused by short-term high-load operation, it could improve user satisfaction with the intelligent use of the air conditioner and maintain the competitiveness of the brand's products. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this application provides an air conditioner control method, device, system and air conditioner to solve the problem that when multiple high-power appliances are running at high loads at the same time and causing the circuit breaker to trip, the existing air conditioner cannot automatically limit the operating power after the circuit breaker is reconnected, resulting in a poor user experience.

[0005] The technical solution adopted by this application to solve its technical problem is: Firstly, an air conditioner control method is provided, including: When power is interrupted and then restored, it is determined whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current. When entering power correction mode, a limiting current is determined based on the current number of power outages and the effective current, and the limiting current is less than the effective current. The air conditioner is controlled to start and run, and the actual current is controlled to be the limiting current.

[0006] As an optional implementation of this application, the step of determining whether to enter the power correction mode based on the actual current of the air conditioner and the recorded effective current includes: A preset coefficient is determined based on the current outdoor ambient temperature, wherein the lower the current outdoor ambient temperature, the higher the preset coefficient, and the preset coefficient is a positive value less than 1; The product of the preset coefficient and the effective current is taken as the preset current; When the actual current is greater than or equal to the preset current, the system enters the power correction mode.

[0007] As an optional implementation of this application, the step of determining the preset coefficient based on the current outdoor ambient temperature includes: The preset outdoor ambient temperature is determined based on the operating mode of the air conditioner. The value of the preset outdoor ambient temperature varies depending on the operating mode of the air conditioner. When the outdoor ambient temperature is greater than or equal to a preset outdoor ambient temperature, the preset coefficient is a first preset value; when the outdoor ambient temperature is less than the preset outdoor ambient temperature, the preset coefficient is a second preset value. Wherein, the first preset value is less than the second preset value.

[0008] As an optional implementation of this application, determining the limiting current based on the current number of power outages and the effective current includes: When the current number of power outages is less than the preset number, a limiting current is determined based on the current number of power outages and the effective current, wherein the larger the current number of power outages, the smaller the limiting current.

[0009] As an optional implementation of this application, it also includes: Get the indoor ambient temperature and the user-set temperature; Calculate the temperature difference between the indoor ambient temperature and the user-set temperature; When the absolute value of the temperature difference is greater than or equal to the first preset temperature difference, the recording of effective current is enabled.

[0010] As an optional implementation of this application, enabling the recording of effective current includes: The real-time current of the air conditioner is obtained at a first preset time interval; When the difference between the real-time current obtained at the current moment and the real-time current obtained at the previous moment is greater than or equal to a preset current difference, the effective current is updated to the real-time current at the current moment.

[0011] As an optional implementation of this application, it also includes: When controlling the air conditioner to start and operate, and controlling the actual current to be the limit current, the actual current is compensated once every third preset time interval. The compensation is performed by controlling the actual current to increase by a preset current value.

[0012] As an optional implementation of this application, it also includes: Exit power correction mode when any of the following conditions are met: The current number of power outages is greater than or equal to the preset number; The number of compensations for the actual current is greater than or equal to the preset number of compensations.

[0013] As an optional implementation of this application, it also includes: If no preset signal is received when the air conditioner is powered off, it is determined that the air conditioner is experiencing a power outage. When the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner is less than or equal to a third preset duration, it is determined that the air conditioner has experienced a power outage and is powered on again.

[0014] As an optional implementation of this application, it also includes: The effective current is cleared when any of the following conditions are met: When the difference between the power restoration time of the air conditioner and the power outage time of the current power interruption is greater than the third preset time; When recording the effective current, the effective current was not updated for the fourth consecutive preset time period. When the absolute value of the temperature difference between the indoor ambient temperature and the user-set temperature is less than the second preset temperature difference.

[0015] Secondly, an air conditioner control device is provided, comprising: The power correction determination module is used to determine whether to enter the power correction mode based on the actual current of the air conditioner and the recorded effective current when the power is interrupted and then restored. A current limiting determination module is used to determine a limiting current based on the current number of power outages and the effective current when entering the power correction mode, wherein the limiting current is less than the effective current; The actual current control module is used to control the air conditioner to start and run, and to control the actual current to be the limiting current.

[0016] Thirdly, an air conditioner control system is provided, comprising: At least one processor and at least one memory; The memory stores the executable instructions of the processor; The processor is configured to perform the air conditioner control method described in any of the preceding descriptions.

[0017] Fourthly, an air conditioner is provided, wherein the air conditioner applies the air conditioner control method described in any of the above claims.

[0018] Beneficial effects: This application provides an air conditioner control method, device, system, and air conditioner. The air conditioner control method includes: when power is interrupted and then restored, determining whether to enter a power correction mode based on the air conditioner's operating mode, outdoor ambient temperature, and actual current; when entering the power correction mode, determining a limiting current based on the current number of power outages and effective current, wherein the limiting current is less than the effective current; and finally controlling the air conditioner to start operation and controlling the actual current to be the limiting current. This application's solution can determine whether to enter a power correction mode based on actual needs when the air conditioner is interrupted and then restored. After entering the power correction mode, it actively reduces the actual current of the air conditioner to limit operating power, reducing the probability of power tripping caused by short-term high-load operation, improving user satisfaction with the intelligent use of the air conditioner, and maintaining the competitiveness of the brand's products. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a flowchart of an air conditioning control method provided in an embodiment of this application; Figure 2 This is a flowchart of a specific air conditioning control method provided in an embodiment of this application; Figure 3 This is a schematic diagram of an air conditioning control device provided in an embodiment of this application; Figure 4 This is a schematic diagram of an air conditioning control system provided in an embodiment of this application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Reference Figure 1 This application provides an air conditioner control method, including: S11: When power is interrupted and then restored, determine whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current. First, it should be noted that there are two types of power outages for air conditioners. One is an active power outage by the air conditioner, in which case the air conditioner sends a specified signal to the indoor unit. The other is a power outage caused by a tripped circuit breaker due to a large load or a mains power failure. The first type is not the technical problem to be solved in this application. Therefore, when controlling the system according to the solution of this application, it is first necessary to determine whether the power outage falls under the second type.

[0023] Therefore, if no preset signal is received when the air conditioner is powered off, the air conditioner is determined to be in operation power outage; the operation power outage refers to the power outage encountered in the second situation during the operation of the air conditioner.

[0024] Furthermore, when the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner's operation interruption is less than or equal to a third preset duration, it is determined that the air conditioner's operation has been interrupted and power is restored. Here, power restoration refers to ending the power outage, such as reclosing the circuit breaker or restoring power. Closing the circuit breaker can be manual or automatic, such as in a smart home system where a tripped circuit breaker due to overload is detected, and the circuit breaker is reclosing after a certain period of time.

[0025] The reason this application limits the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner to be less than or equal to a third preset duration is that user demand remains essentially unchanged after a short power restoration, and the required load may be relatively large. If the power restoration time is long, such as a day, some high-power devices may not be needed at all, and there is no need to adjust the air conditioner's power. Based on this, the solution in this application is only applied to power restoration when the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner is less than or equal to the third preset duration.

[0026] In one embodiment, determining whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current includes: When the actual current is greater than or equal to a preset coefficient multiplied by the effective current, the system enters power correction mode. In this embodiment, the preset coefficient is a fixed value. However, this control method is relatively simple and cannot meet user needs.

[0027] Therefore, in another embodiment, determining whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current includes: A preset coefficient is determined based on the current outdoor ambient temperature, wherein the lower the current outdoor ambient temperature, the higher the preset coefficient, and the preset coefficient is a positive value less than 1; The product of the preset coefficient and the effective current is taken as the preset current; When the actual current is greater than or equal to the preset current, the system enters the power correction mode.

[0028] In this embodiment, the preset coefficient is determined based on the outdoor ambient temperature. Specifically, the lower the outdoor ambient temperature, the smaller the preset coefficient. This is because the higher the outdoor ambient temperature, the greater the relative load. That is, with the same compressor frequency, the higher the outdoor ambient temperature, the greater the overall load; when the compressor frequency is increased by 1Hz, the power may only increase by 5W if the outdoor ambient temperature is low, but it may increase by 20W if the outdoor ambient temperature is high.

[0029] For example, the preset outdoor ambient temperature is determined based on the operating mode of the air conditioner. The value of the preset outdoor ambient temperature varies depending on the operating mode of the air conditioner. When the outdoor ambient temperature is greater than or equal to a preset outdoor ambient temperature, the preset coefficient is a first preset value; when the outdoor ambient temperature is less than the preset outdoor ambient temperature, the preset coefficient is a second preset value. Wherein, the first preset value is less than the second preset value.

[0030] It should be noted that the system operates differently in cooling mode and heating mode, therefore the corresponding preset outdoor ambient temperature is different.

[0031] As a preferred implementation of this application, the effective current is recorded according to the following scheme: Get the indoor ambient temperature and the user-set temperature; Calculate the temperature difference between the indoor ambient temperature and the user-set temperature; When the absolute value of the temperature difference is greater than or equal to the first preset temperature difference, the recording of effective current is enabled.

[0032] Furthermore, when the absolute value of the temperature difference is less than a second preset temperature difference, the recording of valid current is stopped and the valid current is cleared. The second preset temperature difference is less than a first preset temperature difference.

[0033] When the absolute value of the temperature difference is less than a first preset temperature difference and greater than or equal to a second preset temperature difference, the previous control is maintained. Maintaining the previous control includes: If the absolute value of the temperature difference at the previous moment is greater than or equal to the first preset temperature difference, then the effective current continues to be recorded; if the absolute value of the temperature difference at the previous moment is less than the second preset temperature difference, then the effective current is not recorded.

[0034] If the absolute value of the temperature difference at the moment of power-on is greater than or equal to the first preset temperature difference, then the recording of valid current is enabled.

[0035] Enabling the recording of valid current includes: The real-time current of the air conditioner is obtained at a first preset time interval; When the difference between the real-time current obtained at the current moment and the real-time current obtained at the previous moment is greater than or equal to a preset current difference, the effective current is updated to the real-time current at the current moment.

[0036] The effective current is cleared when any of the following conditions are met: When the difference between the power restoration time of the air conditioner and the power outage time of the current power interruption is greater than the third preset time; When recording the effective current, if the effective current is not updated for the fourth consecutive preset time period, it may be due to environmental factors causing the actual current to decrease. If the effective current is still recorded as before, the resulting limiting current may be too large.

[0037] When the absolute value of the temperature difference between the indoor ambient temperature and the user-set temperature is less than the second preset temperature difference.

[0038] S12: When entering the power correction mode, a limiting current is determined based on the current number of power outages and the effective current, wherein the limiting current is less than the effective current; It should be noted that the current power outage count refers to the number of times the air conditioner has been interrupted during operation.

[0039] As a preferred implementation of this application, determining the limiting current based on the current number of power outages and the effective current includes: When the current number of power outages is less than the preset number, a limiting current is determined based on the current number of power outages and the effective current, wherein the larger the current number of power outages, the smaller the limiting current.

[0040] For example, when the current power outage count is 1, the current limit is 80% of the effective current; when the current power outage count is 2, the current limit is 65% of the effective current; and when the current power outage count is 3, the current limit is 50% of the effective current. Alternatively, the current limit = a n *Effective current, where a is a preset coefficient and a is a positive number less than 1, and n is the current number of power outages.

[0041] Furthermore, the reason for limiting the current number of power outages to less than a preset number is that if the current number of power outages is too high, the limiting current will be very small, and the air conditioner will not be able to regulate the temperature. Therefore, after the current number of power outages exceeds the preset number, the power correction mode will no longer be entered. Additionally, the current number of power outages is cleared after the air conditioner has run for five preset hours without a power outage. When the air conditioner has run for five preset hours without a power outage, it indicates that the air conditioner is functioning normally. Clearing the current number of power outages at this point allows the air conditioner to continue to be controlled according to the scheme outlined in this application after a subsequent trip.

[0042] S13: Control the air conditioner to start operation and control the actual current to be the limiting current. Furthermore, when controlling the air conditioner to start operation and controlling the actual current to be the limiting current, the actual current is compensated once every third preset time interval. Each compensation is performed by controlling the actual current to increase by a preset current value.

[0043] Furthermore, the power correction mode will exit when any of the following conditions are met: The current number of power outages is greater than or equal to the preset number; The number of compensations for the actual current is greater than or equal to the preset number of compensations.

[0044] The air conditioner control method provided in this application determines whether to enter a power correction mode when power is interrupted and then restored, based on the air conditioner's operating mode, outdoor ambient temperature, and actual current. When entering power correction mode, a limiting current is determined based on the current number of power outages and the effective current, wherein the limiting current is less than the effective current. Finally, the air conditioner is controlled to start operation, and the actual current is controlled to be the limiting current. This solution can determine whether to enter a power correction mode based on actual needs when power is interrupted and then restored. Once in power correction mode, it actively reduces the actual current of the air conditioner to limit operating power, reducing the probability of power tripping due to short-term high-load operation, improving user satisfaction with the intelligent use of the air conditioner, and maintaining the competitiveness of the brand's products. To illustrate the solution of this application more specifically, a specific air conditioner control method is provided below, such as... Figure 2 As shown: Step 1: Turn on the unit for cooling or heating: When △T≥A, enable the recording of valid current I, the counting time interval is t1, and when It current ≥ It-1 current + 0.5A, refresh the valid current I and write it into the memory chip; (△T is the temperature difference between T indoor ambient and T set temperature, t1 is the current sampling interval time, It current is the current sampled at the current interval t1, and It-1 current is the current detected at the previous interval t1); it should be noted that when △T<A, it indicates that the user's set cooling demand is small. For example, when the indoor ambient temperature is 27°C and the set temperature is 26°C, the small set cooling demand corresponds to a lower operating load of the air conditioner, and accordingly, whether the air conditioner corrects the operating power has little impact.

[0045] Therefore, when A-2°C<△T<A, maintain the previous control scheme, that is, if △T≥A previously, when A-2°C<△T<A, continue to record the valid current; if △T<A-2°C previously, on one hand, when △T<A-2°C, still do not record the valid current; if the temperature directly falls into A-2°C<△T<A after startup, execute the recording of valid current I; When △T<A-2°C, exit the recording and clear the valid current I.

[0046] In addition, if there is a power outage before startup, the limited current during startup operation is: 1) Current limit in cooling mode: a) When T cooling outdoor ambient ≥Y°C, Ic limit = Ic maximum current; b) When T cooling outdoor ambient <Y°C, Ic limit = Ic rated current; (Ic limit is the set current limit in cooling mode, Ic maximum is the maximum current in cooling mode set ex-factory for this model, and Ic rated current is the rated current in cooling mode set ex-factory for this model).

[0047] 2) Current limit in heating mode: a) When T heating outdoor ambient ≥X°C, Ih limit = Ih maximum current; b) When T heating outdoor ambient <X°C, Ih limit = Ih rated current; (Ih limit is the set current limit in heating mode, Ih maximum is the maximum current in heating mode set ex-factory for this model, and Ih rated is the rated current in heating mode set ex-factory for this model).

[0048] Step 2: Judgment of power outage during operation: If the indoor unit does not receive a preset power-off signal during operation and the power supply of the air conditioner is cut off, after power-on, the indoor unit judges that it is a power outage during operation, and performs a judgment on whether power correction is required; Enter power correction when any of the following conditions is met: a) When T heating outdoor ambient ≥X°C or T cooling outdoor ambient ≥Y°C, it is detected that It current ≥ 80% of valid current I; b) When T heating outdoor ambient <X°C or T cooling outdoor ambient <Y°C, it is detected that It current ≥ 90% of valid current I.

[0049] Corrected power not satisfied: a) For heating mode, when the outdoor temperature T<X°C or for cooling mode, when the outdoor temperature T<Y°C, it is detected that the current It<80% of the effective current I; b) For heating mode, when the outdoor temperature T<X°C or for cooling mode, when the outdoor temperature T<Y°C, it is detected that the current It<90% of the effective current I.

[0050] That is: in cooling mode, the corrected power is entered when any of the following conditions is satisfied: a) T for cooling in outdoor environment ≥Y°C, and it is detected that It = 80% of maximum current I; b) T for cooling in outdoor environment <Y°C, and it is detected that It = 90% of rated current I; In heating mode, the corrected power is entered when any of the following conditions is satisfied: a) T for heating in outdoor environment ≥X°C, and it is detected that It = 80% of maximum current Ih; b) T for heating in outdoor environment <X°C, and it is detected that It = 90% of rated current Ih.

[0051] Step 3: Power correction execution: When the air conditioner is turned on within time t2 after power-on, the load operates with the limited current I = I_effective *a%; (t2 is the preset maximum interval startup time after power-on. If the indoor unit does not start up within t2, it indicates that the load of the air conditioner will not cause tripping of the secondary power supply due to overload).

[0052] In the corrected power limited operation, if automatic power-off occurs again, after power-on, the air conditioner records it as the second power-off, and when starting up, the load operates with the limited current I = I_effective *b%; In the corrected power limited operation, if automatic power-off occurs again, after power-on, the air conditioner records it as the third power-off, and when starting up, the load operates with the limited current I = I_effective *c%; In the corrected power limited operation, if automatic power-off occurs again, after power-on, the number of power outages recorded by the air conditioner remains the third time, and when starting up, the load operates with the limited current I = I_effective *C%, that is, no more correction is performed after the maximum current is corrected three times.

[0053] It should be noted that a is a value less than 1; in addition, in terms of numerical values, a>b>c, for example, after the first correction, the limited power is 80% of I_effective, the second is 65%, and the third is 50%. It is set according to actual requirements.

[0054] Step 4: Exit corrected power limitation: 1) During cooling or heating power correction operation, the I-limit current is compensated every t3 interval to ensure cooling / heating demand. Each compensation I_compensation = I-limit current + 1 / N (A). The power correction limit is exited after M consecutive compensations of the I-limit current. (t3 is the preset time for the air conditioner to operate stably without power overload tripping. However, there is still high demand for cooling / heating during t3, so a portion of the limit current is restored.) In addition, N is the denominator value of the compensation current to exit the power correction limit, which can be 2, 3, or 5 (corresponding to compensation of 1 / 2A, 1 / 3A, and 1 / 5A), and can be set according to actual needs.

[0055] Step 5: Clear I effective: 1) After powering on, run for time t2 before turning on the machine again to clear the effective current value I; 2) During cooling or heating operation, if the effective current I is not updated for a continuous time t4, the detected current It will be updated to the effective current I in the next time t1. (T4 is the preset time during actual air conditioning operation when the It current decreases but does not leave the large load detection range, and the effective current I value is maintained).

[0056] 3) Detecting ΔT≤A-2℃ clears the effective current I; The specific air conditioner control method provided in this application records the maximum current during operation and adjusts the operating power after the power supply trips and is restored. Without adding components or controller hardware, it solves the problem of occasional overload caused by multiple electrical appliances, ensuring that the air conditioner and other appliances can be turned on simultaneously without overloading. Through intelligent identification of power trips, it effectively avoids the problem of frequent power outages in the user's home caused by multiple air conditioners operating simultaneously, achieving the goal of sustainable and stable operation of the air conditioner.

[0057] Based on the same inventive concept, such as Figure 3 As shown, this application also provides an air conditioner control device 30, comprising: The power correction determination module 31 is used to determine whether to enter the power correction mode based on the actual current of the air conditioner and the recorded effective current when the power is interrupted and then restored. First, it should be noted that there are two types of power outages for air conditioners. One is an active power outage by the air conditioner, in which case the air conditioner sends a specified signal to the indoor unit. The other is a power outage caused by a tripped circuit breaker due to a large load or a mains power failure. The first type is not the technical problem to be solved in this application. Therefore, when controlling the system according to the solution of this application, it is first necessary to determine whether the power outage falls under the second type.

[0058] Therefore, if no preset signal is received when the air conditioner is powered off, the air conditioner is determined to be in operation power outage; the operation power outage refers to the power outage encountered in the second situation during the operation of the air conditioner.

[0059] Furthermore, when the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner's operation interruption is less than or equal to a third preset duration, it is determined that the air conditioner's operation has been interrupted and power is restored. Here, power restoration refers to ending the power outage, such as reclosing the circuit breaker or restoring power. Closing the circuit breaker can be manual or automatic, such as in a smart home system where a tripped circuit breaker due to overload is detected, and the circuit breaker is reclosing after a certain period of time.

[0060] The reason this application limits the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner to be less than or equal to a third preset duration is that user demand remains essentially unchanged after a short power restoration, and the required load may be relatively large. If the power restoration time is long, such as a day, some high-power devices may not be needed at all, and there is no need to adjust the air conditioner's power. Based on this, the solution in this application is only applied to power restoration when the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner is less than or equal to the third preset duration.

[0061] In one embodiment, determining whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current includes: When the actual current is greater than or equal to a preset coefficient multiplied by the effective current, the system enters power correction mode. In this embodiment, the preset coefficient is a fixed value. However, this control method is relatively simple and cannot meet user needs.

[0062] Therefore, in another embodiment, determining whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current includes: A preset coefficient is determined based on the current outdoor ambient temperature, wherein the lower the current outdoor ambient temperature, the higher the preset coefficient, and the preset coefficient is a positive value less than 1; The product of the preset coefficient and the effective current is taken as the preset current; When the actual current is greater than or equal to the preset current, the system enters the power correction mode.

[0063] In this embodiment, the preset coefficient is determined based on the outdoor ambient temperature. Specifically, the lower the outdoor ambient temperature, the smaller the preset coefficient.

[0064] For example, the preset outdoor ambient temperature is determined based on the operating mode of the air conditioner. The value of the preset outdoor ambient temperature varies depending on the operating mode of the air conditioner. When the outdoor ambient temperature is greater than or equal to a preset outdoor ambient temperature, the preset coefficient is a first preset value; when the outdoor ambient temperature is less than the preset outdoor ambient temperature, the preset coefficient is a second preset value. Wherein, the first preset value is less than the second preset value.

[0065] It should be noted that the system operates differently in cooling mode and heating mode, therefore the corresponding preset outdoor ambient temperature is different.

[0066] Wherein, the first preset current = the first preset coefficient * the effective current, the second preset current = the second preset coefficient * the effective current, and the first preset coefficient is less than the second preset coefficient.

[0067] The effective current is recorded according to the following scheme: Get the indoor ambient temperature and the user-set temperature; Calculate the temperature difference between the indoor ambient temperature and the user-set temperature; When the absolute value of the temperature difference is greater than or equal to the first preset temperature difference, the recording of effective current is enabled.

[0068] Furthermore, when the absolute value of the temperature difference is less than a second preset temperature difference, the recording of valid current is stopped and the valid current is cleared. The second preset temperature difference is less than a first preset temperature difference.

[0069] When the absolute value of the temperature difference is less than a first preset temperature difference and greater than or equal to a second preset temperature difference, the previous control is maintained. Maintaining the previous control includes: If the absolute value of the temperature difference at the previous moment is greater than or equal to the first preset temperature difference, then the effective current continues to be recorded; if the absolute value of the temperature difference at the previous moment is less than the second preset temperature difference, then the effective current is not recorded.

[0070] If the absolute value of the temperature difference at the moment of power-on is greater than or equal to the first preset temperature difference, then the recording of valid current is enabled.

[0071] Enabling the recording of valid current includes: The real-time current of the air conditioner is obtained at a first preset time interval; When the difference between the real-time current obtained at the current moment and the real-time current obtained at the previous moment is greater than or equal to a preset current difference, the effective current is updated to the real-time current at the current moment.

[0072] The effective current is cleared when any of the following conditions are met: When the difference between the power restoration time of the air conditioner and the power outage time of the current power interruption is greater than the third preset time; When recording the effective current, if the effective current is not updated for the fourth consecutive preset time period, it may be due to environmental factors causing the actual current to decrease. If the effective current is still recorded as before, the resulting limiting current may be too large.

[0073] When the absolute value of the temperature difference between the indoor ambient temperature and the user-set temperature is less than the second preset temperature difference.

[0074] The current limiting determination module 32 is used to determine the limiting current based on the current number of power outages and the effective current when entering the power correction mode, wherein the limiting current is less than the effective current; It should be noted that the current power outage count refers to the number of times the air conditioner has been interrupted during operation.

[0075] As a preferred implementation of this application, determining the limiting current based on the current number of power outages and the effective current includes: When the current number of power outages is less than the preset number, a limiting current is determined based on the current number of power outages and the effective current, wherein the larger the current number of power outages, the smaller the limiting current.

[0076] For example, when the current power outage count is 1, the current limit is 80% of the effective current; when the current power outage count is 2, the current limit is 65% of the effective current; and when the current power outage count is 3, the current limit is 50% of the effective current. Alternatively, the current limit = a n *Effective current, where a is a preset coefficient and a is a positive number less than 1, and n is the current number of power outages.

[0077] Furthermore, the reason for limiting the current number of power outages to less than a preset number is that if the current number of power outages is too high, the limiting current will be very small, and the air conditioner will not be able to regulate the temperature. Therefore, after the current number of power outages exceeds the preset number, the power correction mode will no longer be entered. Additionally, the current number of power outages is cleared after the air conditioner has run for five preset hours without a power outage. When the air conditioner has run for five preset hours without a power outage, it indicates that the air conditioner is functioning normally. Clearing the current number of power outages at this point allows the air conditioner to continue to be controlled according to the scheme outlined in this application after a subsequent trip.

[0078] The actual current control module 33 is used to control the air conditioner to start and operate, and to control the actual current to be the limit current. Furthermore, when controlling the air conditioner to start and operate, and controlling the actual current to be the limit current, the actual current is compensated once every third preset time interval. Each compensation involves increasing the actual current by a preset current value.

[0079] Furthermore, the power correction mode will exit when any of the following conditions are met: The current number of power outages is greater than or equal to the preset number; The number of compensations for the actual current is greater than or equal to the preset number of compensations.

[0080] The air conditioner control device provided in this application stores executable instructions of the processor in a memory. When these executable instructions are executed, the processor can determine whether to enter a power correction mode based on the air conditioner's operating mode, outdoor ambient temperature, and actual current when power is interrupted and then restored. When entering power correction mode, it determines a limiting current based on the current number of power outages and the effective current, wherein the limiting current is less than the effective current. Finally, it controls the air conditioner to start operation and controls the actual current to be the limiting current. This solution can determine whether to enter power correction mode based on actual needs when power is interrupted and then restored. After entering power correction mode, it actively reduces the actual current of the air conditioner to limit the operating power, reducing the probability of power tripping caused by short-term high-load operation, improving user satisfaction with the intelligent use of the air conditioner, and maintaining the competitiveness of the brand's products.

[0081] Based on the same inventive concept, such as Figure 4 As shown, this application also provides an air conditioner control system 40, including: At least one processor 41 and at least one memory 42; The memory stores the executable instructions of the processor; The processor is configured to execute the air conditioner control method provided in the above embodiments.

[0082] The air conditioner control system provided in this application stores executable instructions for the processor in a memory. When these instructions are executed, the processor can determine whether to enter a power correction mode based on the air conditioner's operating mode, outdoor ambient temperature, and actual current when power is interrupted and then restored. When entering power correction mode, a limiting current is determined based on the current number of power outages and the effective current, wherein the limiting current is less than the effective current. Finally, the air conditioner is controlled to start operation, and the actual current is controlled to be the limiting current. This solution can determine whether to enter power correction mode based on actual needs when power is interrupted and then restored. Once in power correction mode, it actively reduces the actual current of the air conditioner to limit operating power, reducing the probability of power tripping due to short-term high-load operation, improving user satisfaction with the intelligent use of the air conditioner, and maintaining the competitiveness of the brand's products.

[0083] Based on the same inventive concept, this application also provides an air conditioner that applies the air conditioner control method provided in the above embodiments.

[0084] The air conditioner provided in this application embodiment, by applying the air conditioner control method provided in the above embodiment, can determine whether to enter a power correction mode when the air conditioner is interrupted and then powered on again, based on the air conditioner's operating mode, outdoor ambient temperature, and actual current. When entering the power correction mode, a limiting current is determined based on the current number of power outages and the effective current, wherein the limiting current is less than the effective current. Finally, the air conditioner is controlled to start operation, and the actual current is controlled to be the limiting current. This application solution can determine whether to enter a power correction mode based on actual needs when the air conditioner is interrupted and then powered on again. After entering the power correction mode, it actively reduces the actual current of the air conditioner to limit the operating power, reducing the probability of power tripping caused by short-term high-load operation, improving user satisfaction with the intelligent use of the air conditioner, and maintaining the competitiveness of the brand's products.

[0085] It should be noted that in the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means at least two.

[0086] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

Claims

1. An air conditioner control method, characterized in that, include: When the air conditioner experiences a power outage and is subsequently powered on again, a power correction mode is determined based on the actual current of the air conditioner and the recorded effective current. Specifically, if no preset signal is received when the air conditioner's power is cut off, the air conditioner is determined to have experienced a power outage. If the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner is less than or equal to a third preset duration, the air conditioner is determined to have experienced a power outage and is subsequently powered on again. The effective current is the real-time current at the current moment when the difference between the real-time current acquired at the current moment and the real-time current acquired at the previous moment is greater than or equal to a preset current difference. When entering power correction mode, a limiting current is determined based on the current number of power outages and the effective current, and the limiting current is less than the effective current. The air conditioner is controlled to start and run, and the actual current is controlled to be the limiting current.

2. The method according to claim 1, characterized in that: The process of determining whether to enter power correction mode based on the actual current of the air conditioner and the recorded effective current includes: A preset coefficient is determined based on the current outdoor ambient temperature, wherein the lower the current outdoor ambient temperature, the higher the preset coefficient, and the preset coefficient is a positive value less than 1; The product of the preset coefficient and the effective current is taken as the preset current; When the actual current is greater than or equal to the preset current, the system enters the power correction mode.

3. The method according to claim 2, characterized in that: The process of determining the preset coefficient based on the current outdoor ambient temperature includes: The preset outdoor ambient temperature is determined based on the operating mode of the air conditioner. The value of the preset outdoor ambient temperature varies depending on the operating mode of the air conditioner. When the current outdoor ambient temperature is greater than or equal to a preset outdoor ambient temperature, the preset coefficient is a first preset value; when the current outdoor ambient temperature is less than the preset outdoor ambient temperature, the preset coefficient is a second preset value. Wherein, the first preset value is less than the second preset value.

4. The method according to claim 1, characterized in that: The process of determining the limiting current based on the current number of power outages and the effective current includes: When the current number of power outages is less than the preset number, a limiting current is determined based on the current number of power outages and the effective current, wherein the larger the current number of power outages, the smaller the limiting current.

5. The method according to claim 1, characterized in that, Also includes: Get the indoor ambient temperature and the user-set temperature; Calculate the temperature difference between the indoor ambient temperature and the user-set temperature; When the absolute value of the temperature difference is greater than or equal to the first preset temperature difference, the recording of effective current is enabled.

6. The method according to claim 5, characterized in that: The enabling of recording valid current includes: The real-time current of the air conditioner is obtained at a first preset time interval; When the difference between the real-time current obtained at the current moment and the real-time current obtained at the previous moment is greater than or equal to a preset current difference, the effective current is updated to the real-time current at the current moment.

7. The method according to claim 1, characterized in that, Also includes: When controlling the air conditioner to start and operate, and controlling the actual current to be the limit current, the actual current is compensated once every third preset time interval. The compensation is performed by controlling the actual current to increase by a preset current value.

8. The method according to claim 7, characterized in that, Also includes: The power correction mode will exit when any of the following conditions are met: The current number of power outages is greater than or equal to the preset number; The number of compensations for the actual current is greater than or equal to the preset number of compensations.

9. The method according to claim 6, characterized in that, Also includes: The effective current is cleared when any of the following conditions are met: When the difference between the power restoration time of the air conditioner and the power outage time of the current power interruption is greater than the third preset time; When recording the effective current, the effective current was not updated for the fourth consecutive preset time period. When the absolute value of the temperature difference between the indoor ambient temperature and the user-set temperature is less than the second preset temperature difference.

10. An air conditioner control device, characterized in that, include: The power correction determination module is used to determine whether to enter the power correction mode when the air conditioner is interrupted and then re-energized, based on the actual current of the air conditioner and the recorded effective current. Specifically, if no preset signal is received when the air conditioner is powered off, the air conditioner is determined to have experienced a power outage. If the difference between the power restoration time of the air conditioner and the power outage time of the air conditioner is less than or equal to a third preset duration, the air conditioner is determined to have experienced a power outage and been re-energized. The effective current is the real-time current at the current moment when the difference between the real-time current acquired at the current moment and the real-time current acquired at the previous moment is greater than or equal to a preset current difference. A current limiting determination module is used to determine a limiting current based on the current number of power outages and the effective current when entering the power correction mode, wherein the limiting current is less than the effective current; The actual current control module is used to control the air conditioner to start and run, and to control the actual current to be the limiting current.

11. An air conditioner control system, characterized in that, include: At least one processor and at least one memory; The memory stores the executable instructions of the processor; The processor is configured to perform the method according to any one of claims 1-9.

12. An air conditioner, characterized in that, The air conditioner includes the air conditioner control system as described in claim 11.

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