Air conditioner energy-saving auxiliary control method and air conditioner applying same

Abstract

The invention discloses an air conditioner energy-saving auxiliary control method and an air conditioner applying the air conditioner energy-saving auxiliary control method. The method comprises the steps that the load grade of the air conditioner operation environment is determined; respectively calculating at least two power adjustment coefficients of the air conditioner in at least two modes according to the load grade; a first difference value between the current indoor temperature and the set temperature is obtained every first preset period, and a corresponding power adjustment coefficient is selected according to the first difference value; wherein the larger the first difference value is, the larger the selected power adjustment coefficient is; and adjusting the operation power of the air conditioner by using the selected power adjustment coefficient. The corresponding power adjusting coefficient is selected according to the obtained first difference value, and then the operation power of the air conditioner is adjusted according to the power adjusting coefficient, so that the power of the air conditioner can be accurately adjusted, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning energy-saving auxiliary control method and an air conditioning using the same. Background Art

[0002] Traditional air conditioning control systems mainly adjust the air conditioning power based on changes in indoor temperature. However, there is a certain lag in temperature changes. When the indoor temperature reaches the set value, the adjustment of the air conditioning power often lags behind, which means that the air conditioning continues to work, causing the indoor temperature to drop excessively. Specifically, when the indoor temperature is actually detected to meet the set temperature, the air conditioning starts to reduce the air conditioning power, while the actual indoor temperature will continue to drop, resulting in an overshoot phenomenon. Under different load conditions, the degree of overshoot is also different. Therefore, the existing air conditioning power cannot be accurately adjusted, and the overshoot phenomenon also leads to a waste of electrical energy. Summary of the invention

[0003] The embodiment of the present invention provides an air conditioner energy-saving auxiliary control method and an air conditioner using the same, aiming to solve the problem in the prior art that the air conditioner power cannot be accurately adjusted, resulting in waste of electric energy.

[0004] In a first aspect, an embodiment of the present invention provides an air conditioning energy-saving auxiliary control method, comprising:

[0005] Determine the load level of the air conditioning operating environment;

[0006] Calculating at least two power adjustment coefficients of the air conditioner in at least two ways according to the load level;

[0007] Obtaining a first difference between the current indoor temperature and the set temperature every first preset period, and selecting a corresponding power adjustment coefficient according to the first difference; wherein the larger the first difference, the larger the selected power adjustment coefficient;

[0008] The operating power of the air conditioner is adjusted using the selected power adjustment coefficient.

[0009] Further, the determining of the load level of the air-conditioning operating environment includes:

[0010] Control the air conditioner to operate at constant power for a predetermined period of time, and obtain the indoor temperature before and after the predetermined period of time;

[0011] Calculating a second difference between the indoor temperature before and after the predetermined time period;

[0012] The second difference is matched with a load level table to obtain a corresponding load level; wherein the load level table stores associations between different second difference ranges and different load levels.

[0013] Furthermore, obtaining a first difference between the current indoor temperature and the set temperature every first preset period, and selecting a corresponding power adjustment coefficient according to the first difference, includes:

[0014] Obtaining a first difference between the current indoor temperature and the set temperature every first preset period;

[0015] The first difference is matched with a preset power adjustment coefficient table, and a corresponding power adjustment coefficient is selected according to the matching result; wherein the power adjustment coefficient table stores associations between different first difference ranges and different power adjustment coefficients.

[0016] Further, at least two of the power adjustment coefficients include k1 and k2, and the first difference range includes a range of (ΔT1-ΔT2) and a range greater than ΔT3;

[0017] Among them, the range greater than ΔT3 corresponds to k1, the range of (ΔT1-ΔT2) corresponds to k2, and ΔT1<ΔT2<ΔT3, k2 is smaller than k1.

[0018] Furthermore, the air conditioning energy-saving auxiliary control method further includes:

[0019] If the first difference is less than ΔT1 or within the range of (ΔT2-ΔT3), the power adjustment coefficient is not selected, and the operating power of the air conditioner is not adjusted.

[0020] Further, the calculating at least two power adjustment coefficients of the air conditioner in at least two ways according to the load level includes:

[0021] obtaining the load level;

[0022] Calculate the first power adjustment coefficient k1 in a first manner;

[0023] Calculate the second power adjustment coefficient k2 in the second way;

[0024] The higher the load level, the larger k1 and k2.

[0025] Further, the first power adjustment coefficient k1 is calculated in the first manner, including:

[0026] The first power adjustment coefficient k1 is calculated according to the following formula:

[0027] k1=(5X+85)×100%

[0028] The second power adjustment coefficient k2 is calculated in the second manner, including:

[0029] The second power adjustment coefficient k2 is calculated according to the following formula:

[0030] K2=(3X+80)×100%

[0031] Wherein, X represents the load level, and the larger X is, the heavier the load is.

[0032] Furthermore, after the step of adjusting the operating power of the air conditioner using the selected power adjustment coefficient, the following steps are performed:

[0033] After the air conditioner runs for a preset time, obtaining a third difference between the current indoor temperature and the set temperature every second preset period;

[0034] If the third difference is less than the first preset value or greater than the second preset value, re-determine the load level of the air-conditioning operating environment and perform power adjustment;

[0035] If the third difference is greater than or equal to the first preset value and less than or equal to the second preset value, the first difference continues to be calculated every first preset period, the corresponding power adjustment coefficient is selected, and power adjustment is performed.

[0036] Further, the adjusting the operating power of the air conditioner by using the selected power adjustment coefficient includes:

[0037] Multiplying the selected power adjustment coefficient by the preset operating power of the air conditioner to obtain the current operating power of the air conditioner;

[0038] The air conditioner is controlled to operate according to the current operating power.

[0039] In a second aspect, an embodiment of the present invention provides an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the air conditioner energy-saving auxiliary control method as described in the first aspect above are implemented.

[0040] The embodiment of the present invention provides an air conditioner energy-saving auxiliary control method, comprising determining the load level of the air conditioner operating environment; calculating at least two power adjustment coefficients of the air conditioner in at least two ways according to the load level; obtaining a first difference between the current indoor temperature and the set temperature every first preset period, and selecting a corresponding power adjustment coefficient according to the first difference; wherein the larger the first difference, the larger the selected power adjustment coefficient; and adjusting the operating power of the air conditioner using the selected power adjustment coefficient. The present invention uses the obtained first difference to select the corresponding power adjustment coefficient, and then adjusts the operating power of the air conditioner according to the power adjustment coefficient, so that the air conditioner power can be accurately adjusted and achieve energy-saving effects.

[0041] The embodiment of the present invention further provides an air conditioner, which also has the above beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0043] Figure 1 A schematic diagram of a process of an air conditioning energy-saving auxiliary control method provided by an embodiment of the present invention Figure 1 ;

[0044] Figure 2 A schematic diagram of a process of an air conditioning energy-saving auxiliary control method provided by an embodiment of the present invention Figure 2 ;

[0045] Figure 3 A schematic diagram of a process of an air conditioning energy-saving auxiliary control method provided by an embodiment of the present invention Figure 3 . DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0048] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0049] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0050] Combination Figure 1 and Figure 2 As shown, the embodiment of the present invention provides an air conditioning energy-saving auxiliary control method, and the specific steps include S101 to S104:

[0051] S101, determining the load level of the air conditioning operating environment;

[0052] S102, calculating at least two power adjustment coefficients of the air conditioner in at least two ways according to the load level;

[0053] S103, obtaining a first difference between the current indoor temperature and the set temperature every first preset period, and selecting a corresponding power adjustment coefficient according to the first difference; wherein the larger the first difference is, the larger the selected power adjustment coefficient is;

[0054] S104: Adjust the operating power of the air conditioner using the selected power adjustment coefficient.

[0055] An embodiment of the present invention provides an air conditioner energy-saving auxiliary control method, which refers to an auxiliary control added outside the normal control method of the air conditioner, and adjusts the parameters in the normal control method without affecting the control of the normal control method.

[0056] In step S101, it is first necessary to determine the load level of the current air-conditioning operating environment according to different conditions of the air-conditioning environment. The load level can reflect the working intensity required by the air-conditioning in different environments.

[0057] For example, the load levels can be divided as follows:

[0058] Low load level: When the indoor temperature and humidity are relatively stable, and the external ambient temperature is suitable, the air conditioner load is at a low level, indicating that the air conditioner operating load is relatively light.

[0059] Medium load level: When the indoor temperature changes greatly, the humidity level fluctuates, or the outside temperature changes significantly, the air conditioner load level is medium, indicating that the air conditioner needs to increase cooling / heating output.

[0060] High load level: When the indoor temperature fluctuates violently, the humidity is high, or the external ambient temperature is extreme, the air conditioner load level is high, indicating that the air conditioner needs to operate at a higher power to meet the needs of the environment.

[0061] The above are mainly divided into three levels. In actual applications, more levels can be divided as needed for more precise adjustment. For example, from low to high, there are 5 levels: 1-5. Load level 1 represents the smallest load, and load level 5 represents the largest load.

[0062] In one embodiment, the step S101 includes:

[0063] Control the air conditioner to operate at constant power for a predetermined period of time, and obtain the indoor temperature before and after the predetermined period of time;

[0064] Calculating a second difference between the indoor temperature before and after the predetermined time period;

[0065] The second difference is matched with a load level table to obtain a corresponding load level; wherein the load level table stores associations between different second difference ranges and different load levels.

[0066] In this embodiment, the air conditioner operates at a constant power within a predetermined time period (such as set to 80% constant power). During this time period, the operating power of the air conditioner remains unchanged and is not adjusted according to the real-time temperature. In this way, it can be ensured that the temperature change is mainly caused by the continuous effect of the air conditioner power, avoiding interference from other factors. The indoor temperature before and after the predetermined time period is used as the basis for subsequent calculation of the load level. Before the start of the predetermined time period, the air conditioner can obtain the indoor temperature through the temperature sensor (that is, the indoor temperature before the predetermined time period, such as the indoor temperature when the air conditioner is turned on). After the predetermined time period ends, the air conditioner obtains the indoor temperature data again through the temperature sensor (that is, the indoor temperature after the predetermined time period, such as the indoor temperature after the air conditioner has been running for 15 minutes).

[0067] After obtaining the indoor temperature data before and after the predetermined time period, the temperature change difference between the two time points, i.e., the second difference, can be calculated. The second difference is matched with the load level table to obtain the corresponding load level. The load level table can be pre-designed according to the actual application requirements, and the mapping relationship between the second difference range and the load level in the load level table can be determined through experiments or system optimization. The design of the load level table should be able to adapt to temperature changes under different environmental conditions to ensure that the air conditioner can operate under various load conditions.

[0068] Specifically, the load level table can be divided according to the following Table 1:

[0069]

[0070] Table 1

[0071] In step S102, at least two power adjustment coefficients of the air conditioner are calculated in at least two ways according to the current load level of the air conditioner, so as to accurately adjust the operating power of the air conditioner. According to the determined load level, the air conditioner has at least two power adjustment methods. A low load level can be adjusted with a smaller power adjustment coefficient, while a high load level can be adjusted with a larger power adjustment coefficient.

[0072] In one embodiment, the step S102 includes:

[0073] obtaining the load level;

[0074] Calculate the first power adjustment coefficient k1 in a first manner;

[0075] Calculate the second power adjustment coefficient k2 in the second way;

[0076] The higher the load level, the larger k1 and k2.

[0077] In this embodiment, the load level of the current air-conditioning environment is obtained, and the power adjustment requirements of the air conditioner are different according to the load level. The load level affects the calculation of the power adjustment coefficients k1 and k2. Specifically, the higher the load level, the stronger the cooling or heating capacity required by the air conditioner, so the power adjustment coefficient will increase accordingly. After obtaining the load level, the air conditioner calculates the first power adjustment coefficient k1 according to the first method, and calculates the second power adjustment coefficient k2 according to the second method. Of course, the calculation of the first method and the second method can be carried out in combination with actual conditions, and there are no special requirements here.

[0078] In one embodiment, the first power adjustment coefficient k1 is calculated in a first manner, including:

[0079] The first power adjustment coefficient k1 is calculated according to the following formula:

[0080] k1=(5X+85)×100%

[0081] The second power adjustment coefficient k2 is calculated in the second manner, including:

[0082] The second power adjustment coefficient k2 is calculated according to the following formula:

[0083] K2=(3X+80)×100%

[0084] Wherein, X represents the load level, and the larger X is, the heavier the load is.

[0085] In this embodiment, for the calculation method of the first method, for example, when the load level X is 1, the calculation result of k1 is: (5×1+85)×100%=90%, indicating that the air conditioner needs to be adjusted according to 90% power at a lower load level. When the load level X is 2, k1 is: (5×2+85)×100%=95%, indicating that the power demand of the air conditioner increases.

[0086] For the calculation method of the second method, for example, when the load level X is 1, the calculation result of k2 is: (3×1+80)×100%=83%, indicating that the air conditioner needs to be adjusted according to 83% power at a lower load level. When the load level X is 2, k2 is: (3×2+80)×100%=86%, indicating that the power demand of the air conditioner increases.

[0087] According to the above formula, we can see that the larger the load level X is, the larger the calculation result will be, whether it is k1 or k2.

[0088] In step S103, the air conditioner obtains the current indoor temperature every first preset period (e.g., the first preset period can be a predetermined time interval such as 1 minute, 5 minutes, etc.), and calculates the difference with the set temperature. The current indoor temperature is subtracted from the set temperature to obtain a first difference. When the first difference is small, it means that the indoor temperature is close to the set temperature, and the power adjustment coefficient of the air conditioner required is small. The air conditioner does not need to adjust the power significantly to avoid excessive cooling or heating. When the first difference is large, it means that the difference between the indoor temperature and the set temperature is large, and the power adjustment coefficient of the air conditioner required is large to accelerate the temperature to approach the set value and ensure stronger cooling or heating capacity.

[0089] In one embodiment, the step S103 includes:

[0090] Obtaining a first difference between the current indoor temperature and the set temperature every first preset period;

[0091] The first difference is matched with a preset power adjustment coefficient table, and a corresponding power adjustment coefficient is selected according to the matching result; wherein the power adjustment coefficient table stores associations between different first difference ranges and different power adjustment coefficients.

[0092] In this embodiment, the air conditioner obtains the current indoor temperature and compares it with the set temperature every first preset period (for example, 1 minute, 5 minutes or other appropriate time intervals). The current indoor temperature can be measured in real time by the temperature sensor built into the air conditioner, and the set temperature is the target temperature set by the user through a remote control, a mobile phone application or other control means. The difference between the current indoor temperature and the set temperature is calculated to obtain a first difference. After obtaining the first difference, the air conditioner matches the first difference with the preset range in the power adjustment coefficient table according to the pre-set power adjustment coefficient table. The power adjustment coefficient table stores different first difference ranges and their corresponding power adjustment coefficients.

[0093] The power adjustment coefficient table is pre-designed based on experimental data, actual needs or system optimization results. The power adjustment coefficient table records the mapping relationship between different first difference ranges and power adjustment coefficients. The design of the power adjustment coefficient table should take into account the performance requirements of the air conditioner under different temperature differences, ensuring that the air conditioner can accurately control the temperature under each load condition while avoiding energy waste caused by over-adjustment.

[0094] Combination Figure 3 As shown, in one embodiment, at least two of the power adjustment coefficients include k1 and k2, and the first difference range includes a range of (ΔT1-ΔT2) and a range greater than ΔT3;

[0095] Among them, the range greater than ΔT3 corresponds to k1, the range of (ΔT1-ΔT2) corresponds to k2, and ΔT1<ΔT2<ΔT3, k2 is smaller than k1.

[0096] In this embodiment, the air conditioner selects the corresponding power adjustment coefficient according to the size of the first difference, including at least two coefficients k1 and k2. Specifically, k1 corresponds to a larger first difference range, and k2 corresponds to a smaller first difference range. When the first difference is small (when the indoor temperature is close to the set temperature), the air conditioner will select a smaller power adjustment coefficient k2; when the first difference is large (when the temperature difference is large), a larger power adjustment coefficient k1 is selected to enhance the temperature control effect. The range of (ΔT1-ΔT2) corresponds to a smaller temperature deviation, that is, the difference between the indoor temperature and the set temperature is small. The power adjustment coefficient corresponding to this range is k2, indicating that when the indoor temperature is close to the set temperature, the air conditioner should select a smaller power adjustment range to avoid over-adjustment and save energy. When the first difference is greater than the predetermined ΔT3, it means that the difference between the indoor temperature and the set temperature is large, and the air conditioner needs a larger power output to quickly adjust the temperature. At this time, the air conditioning system selects the power adjustment coefficient k1 to meet the larger load demand with higher power.

[0097] For example, the first difference range can be divided as follows:

[0098] For a range greater than ΔT3 (ΔT3 is 3°C), when the first difference is greater than 3°C, the power adjustment coefficient is selected as k1;

[0099] For the range of (ΔT1-ΔT2) (ΔT1 is 1°C, ΔT2 is 2°C), when the first difference is greater than 1°C and less than or equal to 2°C, the power adjustment coefficient is selected as k2.

[0100] In one embodiment, the air conditioning energy-saving auxiliary control method further includes:

[0101] If the first difference is less than ΔT1 or within the range of (ΔT2-ΔT3), the power adjustment coefficient is not selected, and the operating power of the air conditioner is not adjusted.

[0102] In this embodiment, when the first difference is less than ΔT1, it means that the difference between the indoor temperature and the set temperature is very small, the air conditioner is already close to the set temperature, and the system believes that there is no need to further adjust the power. At this time, the air conditioner will maintain the current operating state and will not adjust the power. When the first difference is within the range from ΔT2 to ΔT3, it means that although the indoor temperature has deviated, the deviation is not large, and the temperature change is within the range set by the system, so the air conditioner does not need to adjust the power output.

[0103] For example, when the first difference is less than or equal to 1° C. (ΔT1), and when the first difference is greater than 2° C. and less than or equal to 3° C. (ΔT2-ΔT3), the power adjustment coefficient is not selected, that is, normal operation is maintained.

[0104] In step S104, after obtaining the power adjustment coefficient, the air conditioner dynamically adjusts the operating power of the air conditioner according to the power adjustment coefficient. The air conditioner adjusts the cooling or heating effect by controlling the operating power of the compressor. According to the selected power adjustment coefficient, the system will adjust the speed or workload of the compressor to achieve the desired temperature control effect. For example, when the power adjustment coefficient k1 is selected, if k1 is greater than 100%, the system will increase the power output of the compressor to improve the cooling or heating capacity; if k1 is less than 100%, the system will reduce the power output of the compressor to avoid excessive energy consumption. When k2 is generally set to less than 100%, when the power adjustment coefficient k2 is selected, the system will reduce the power output of the compressor to avoid excessive energy consumption.

[0105] In one embodiment, the step S104 includes:

[0106] Multiplying the selected power adjustment coefficient by the preset operating power of the air conditioner to obtain the current operating power of the air conditioner;

[0107] The air conditioner is controlled to operate according to the current operating power.

[0108] In this embodiment, the air conditioner multiplies the selected power adjustment coefficient by the preset operating power of the air conditioner to obtain the current operating power of the air conditioner. The preset operating power refers to the standard power value of the air conditioner under normal working conditions, which is usually set by the air conditioner manufacturer according to the model and performance parameters of the air conditioner. This value represents the basic power output of the air conditioner under ideal operating conditions and is not affected by any external adjustment factors. The power adjustment coefficient is selected according to the aforementioned steps (such as step S103 and step S102), and is dynamically adjusted according to the load level and the difference in indoor temperature to determine the actual power that the air conditioner needs to output. By accurately controlling the operating power of the air conditioner, the air conditioner can avoid invalid power output while meeting the temperature adjustment requirements. If the indoor temperature difference is small, the air conditioner maintains appropriate comfort through lower operating power; if the temperature difference is large, the air conditioner accelerates temperature adjustment by increasing the operating power, so as to quickly reach the set temperature.

[0109] In this embodiment, the operating power can be adjusted by adjusting the operating parameters of the air conditioner, wherein the operating parameters may refer to parameters such as the fan frequency and the compressor frequency when the air conditioner is running. In the normal operating strategy, the preset operating power of the air conditioner uses a PID control algorithm. In this embodiment, the operating power is adjusted by not changing the PID algorithm parameters. The operating parameters are obtained according to the existing PID control operation, and only the result after the final PID calculation needs to be adjusted.

[0110] Specifically, when the load level is divided into 5 levels, the following table 2 can be used for corresponding execution:

[0111]

[0112]

[0113] Table 2

[0114] Taking load level 1 as an example, it can be considered that load level 1 represents the minimum load, and the calculated power adjustment coefficients k1 and k2 are 90% and 83% respectively. When the first difference is greater than 3°C, due to the small load, it is necessary to prevent overshoot in advance. It is only necessary to operate at 90% of the normal power to quickly reduce the first difference. When the first difference is reduced to the range of 2°C < first difference ≤ 3°C, it is operated at 100% of the normal power. When the first difference continues to reduce to the range of 1°C < first difference ≤ 2°C, in order to avoid overshoot, it is necessary to lower the power in advance, that is, operate at 83% of the normal power. Finally, when the first difference is reduced to ≤ 1°C, it can be restored to 100% of the normal power.

[0115] Taking load level 3 as an example, it can be considered that load level 3 represents a standard load, and the calculated power adjustment coefficients k1 and k2 are 100% and 89% respectively. When the first difference is greater than 3°C, it is necessary to operate at a ratio of 100% of normal power. When the first difference is reduced to the range of 2°C < first difference ≤ 3°C, it continues to operate at a ratio of 100% of normal power. When the first difference continues to reduce to the range of 1°C < first difference ≤ 2°C, in order to avoid overshoot, it is necessary to reduce the power in advance, that is, operate at a ratio of 89% of normal power. Finally, when the first difference is reduced to ≤ 1°C, it can be restored to operate at a ratio of 100% of normal power.

[0116] Taking load level 5 as an example, it can be considered that load level 5 represents the maximum load, and the calculated power adjustment coefficients k1 and k2 are 110% and 95% respectively. When the first difference is greater than 3°C, due to the large load, it is necessary to operate at a normal power ratio of 110% to reduce the first difference as soon as possible and make the indoor temperature reach the set temperature faster. When the first difference is reduced to the range of 2°C < first difference ≤ 3°C, it is operated at a normal power ratio of 100%. When the first difference continues to reduce to the range of 1°C < first difference ≤ 2°C, in order to avoid overshoot, it is necessary to reduce the power in advance, that is, operate at a normal power ratio of 95%. Finally, when the first difference is reduced to ≤ 1°C, it can be restored to a normal power ratio of 100%.

[0117] In one embodiment, after step S104, the following steps are included:

[0118] After the air conditioner runs for a preset time, obtaining a third difference between the current indoor temperature and the set temperature every second preset period;

[0119] If the third difference is less than the first preset value or greater than the second preset value, re-determine the load level of the air-conditioning operating environment and perform power adjustment;

[0120] If the third difference is greater than or equal to the first preset value and less than or equal to the second preset value, the first difference continues to be calculated every first preset period, the corresponding power adjustment coefficient is selected, and power adjustment is performed.

[0121] In this embodiment, after the air conditioner runs for a preset time (the time is the preset working cycle of the air conditioner, which can be tens of minutes or hours, and the specific time can be adjusted according to the application requirements), the air conditioner starts to obtain the current indoor temperature every second preset period (for example, 10 minutes, 30 minutes, etc.), and compares it with the set temperature to calculate the third difference. The third difference reflects the deviation between the actual temperature and the target temperature after the air conditioner has been running for a certain period of time. After calculating the third difference, the air conditioner will make a judgment based on the two preset thresholds (the first preset value and the second preset value), where the first preset value can be -2°C and the second preset value can be 2°C.

[0122] If the third difference is less than the first preset value or the third difference is greater than the second preset value, it means that the deviation between the indoor temperature and the set temperature is large, and it is determined that the current load condition has changed. For example, the load level has changed from level 1 to level 5, or from level 5 to level 1. The reasons may be personnel flow, changes in the outdoor environment (such as sunny days, rainy days), changes in the indoor environment (such as opening windows, closing windows), etc. These factors will affect the load in the room. It is necessary to re-evaluate the load level, calculate the power adjustment coefficient, and adjust the power output accordingly to accelerate the temperature adjustment.

[0123] If the third difference is greater than or equal to the first preset value and less than or equal to the second preset value: This indicates that the temperature deviation is within a reasonable range, that is, the current temperature control state is good, and the air conditioner can continue to operate according to the existing load level and power adjustment logic, and the air conditioner can maintain the current operating state. In this case, the air conditioner will continue to operate according to the original control strategy, that is, calculate the first difference every first preset period (for example, 1 minute, 5 minutes, etc.), and select the corresponding power adjustment coefficient according to the first difference. Based on the calculated first difference, the air conditioner selects an appropriate power adjustment coefficient (for example, k1 or k2) and continues to adjust the operating power of the air conditioner to ensure temperature control accuracy and energy saving effect.

[0124] Through this dynamic adjustment mechanism, the air conditioner can accurately control power output according to real-time temperature changes and load changes. When the temperature deviation is large, the air conditioner will improve the cooling or heating capacity by re-determining the load level and adjusting the power output; when the temperature deviation is within a reasonable range, the system will maintain a more energy-saving operation state to avoid unnecessary energy waste.

[0125] In summary, the present invention determines the indoor load level by the change of indoor temperature during the initial constant power operation, adjusts the air conditioner operating power according to different load levels, reduces the overshoot phenomenon of the air conditioner under different load conditions, improves the user's comfort experience, and achieves energy saving effects. Determine the indoor load level, adjust the air conditioner power according to different indoor load levels, and when the current operating conditions cannot meet the set requirements, re-determine the load level and adjust the operating conditions to accommodate the influences caused by personnel flow, external environmental changes, and load changes in the room. At the same time, there is no need to add external instruments, saving costs.

[0126] An embodiment of the present invention also provides an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the air conditioner energy-saving auxiliary control method as described above when executing the computer program.

[0127] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0128] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. An air conditioning energy-saving auxiliary control method, characterized in that: include: Determine the load level of the air conditioning operating environment; Calculating at least two power adjustment coefficients of the air conditioner in at least two ways according to the load level; Obtaining a first difference between the current indoor temperature and the set temperature every first preset period, and selecting a corresponding power adjustment coefficient according to the first difference; wherein the larger the first difference, the larger the selected power adjustment coefficient; The operating power of the air conditioner is adjusted using the selected power adjustment coefficient.

2. The air conditioning energy-saving auxiliary control method according to claim 1, characterized in that: Determining the load level of the air conditioning operating environment includes: Control the air conditioner to operate at constant power for a predetermined period of time, and obtain the indoor temperature before and after the predetermined period of time; Calculating a second difference between the indoor temperature before and after the predetermined time period; The second difference is matched with a load level table to obtain a corresponding load level; wherein the load level table stores associations between different second difference ranges and different load levels.

3. The air conditioning energy-saving auxiliary control method according to claim 1, characterized in that: The step of obtaining a first difference between the current indoor temperature and the set temperature at every first preset period, and selecting a corresponding power adjustment coefficient according to the first difference, comprises: Obtaining a first difference between the current indoor temperature and the set temperature every first preset period; The first difference is matched with a preset power adjustment coefficient table, and a corresponding power adjustment coefficient is selected according to the matching result; wherein the power adjustment coefficient table stores associations between different first difference ranges and different power adjustment coefficients.

4. The air conditioning energy-saving auxiliary control method according to claim 3, characterized in that: At least two of the power adjustment coefficients include k1 and k2, and the first difference range includes a range of (ΔT1-ΔT2) and a range greater than ΔT3; Among them, the range greater than ΔT3 corresponds to k1, the range of (ΔT1-ΔT2) corresponds to k2, and ΔT1<ΔT2<ΔT3, k2 is smaller than k1.

5. The air conditioning energy-saving auxiliary control method according to claim 4, characterized in that: Also includes: If the first difference is less than ΔT1 or within the range of (ΔT2-ΔT3), the power adjustment coefficient is not selected, and the operating power of the air conditioner is not adjusted.

6. The air conditioning energy-saving auxiliary control method according to claim 1, characterized in that: The calculating at least two power adjustment coefficients of the air conditioner in at least two ways according to the load level includes: obtaining the load level; Calculate the first power adjustment coefficient k1 in a first manner; Calculate the second power adjustment coefficient k2 in the second way; The higher the load level, the larger k1 and k2.

7. The air conditioning energy-saving auxiliary control method according to claim 6, characterized in that: The first power adjustment coefficient k1 is calculated in the first way, including: The first power adjustment coefficient k1 is calculated according to the following formula: k1=(5X+85)×100% The second power adjustment coefficient k2 is calculated in the second manner, including: The second power adjustment coefficient k2 is calculated according to the following formula: K2=(3X+80)×100% Wherein, X represents the load level, and the larger X is, the heavier the load is.

8. The air conditioning energy-saving auxiliary control method according to claim 1, characterized in that: After the step of adjusting the operating power of the air conditioner by using the selected power adjustment coefficient, the method further comprises: After the air conditioner runs for a preset time, obtaining a third difference between the current indoor temperature and the set temperature every second preset period; If the third difference is less than the first preset value or greater than the second preset value, re-determine the load level of the air-conditioning operating environment and perform power adjustment; If the third difference is greater than or equal to the first preset value and less than or equal to the second preset value, the first difference continues to be calculated every first preset period, the corresponding power adjustment coefficient is selected, and power adjustment is performed.

9. The air conditioning energy-saving auxiliary control method according to claim 1, characterized in that: The adjusting the operating power of the air conditioner by using the selected power adjustment coefficient includes: Multiplying the selected power adjustment coefficient by the preset operating power of the air conditioner to obtain the current operating power of the air conditioner; The air conditioner is controlled to operate according to the current operating power.

10. An air conditioner comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the air conditioning energy-saving auxiliary control method according to any one of claims 1 to 9 are implemented.

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