Control method and control device of air conditioner and air conditioner

Abstract

The application provides a control method and device of an air conditioner and the air conditioner. The control method of the air conditioner comprises: controlling the air conditioner to enter a pre-protection mode according to occurrence of at least one abnormal external factor, wherein in the pre-protection mode, a main power supply and a supplementary power supply supply power to the air conditioner at the same time so that the air conditioner operates at a set operating power, and when the abnormal external factor occurs, the main power supply and / or the supplementary power supply supply power to the air conditioner at an output power lower than the set power corresponding to the abnormal external factor; wherein the abnormal external factor is used to cause fluctuation of the output power of the external power supply. The control method of the air conditioner provided by the application can ensure stability of input power received by the air conditioner, thereby ensuring stability of air conditioner two-end voltage and stability of the air conditioner operating state, and further avoiding damage to the structure of the air conditioner and prolonging the service life of the air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, and in particular to a control method and control device of an air conditioner and the air conditioner. BACKGROUND

[0002] In the related art, the air conditioner does not consider the power supply condition of the external power supply during operation, that is, the external power supply still outputs power to the air conditioner according to the set power regardless of whether an abnormal condition occurs. Thus, if the external power supply is affected by the external environment during power supply, the output power of the external power supply may fluctuate abnormally, for example, the output power of a solar cell is unstable in a changeable weather condition, and the output power of a commercial power supply fluctuates greatly during a power peak period. Therefore, the air conditioner in the related art does not have a risk protection mechanism when an abnormal condition occurs, which leads to great and unstable fluctuations of the voltage and power of the air conditioner, and may cause damage to the structure of the air conditioner and shorten the service life of the air conditioner. In addition, the air conditioner may even malfunction, such as power failure and shutdown, when the voltage fluctuates severely. SUMMARY

[0003] The present application provides a control method and control device of an air conditioner and the air conditioner to solve the defects in the prior art and achieve the following technical effects: the stability of the input power received by the air conditioner is ensured, thereby ensuring the stability of the voltage at both ends of the air conditioner and the stability of the operating state of the air conditioner, and further avoiding damage to the structure of the air conditioner and prolonging the service life of the air conditioner.

[0004] According to the control method of the air conditioner of the first aspect of the present application, the air conditioner is powered by an external power supply, and the external power supply includes a main power supply and a supplementary power supply.

[0005] The control method comprises:

[0006] According to the occurrence of at least one abnormal external factor, the air conditioner is controlled to enter a pre-protection mode, wherein in the pre-protection mode, the main power supply and the supplementary power supply simultaneously supply power to the air conditioner to enable the air conditioner to operate according to the set operating power, and when the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner according to an output power lower than the respective set power.

[0007] The abnormal external factor is used to cause fluctuations in the output power of the external power supply.

[0008] According to one embodiment of the present application, the external power supply includes a photovoltaic power supply device as the main power supply and a commercial power supply device as the supplementary power supply, and the abnormal external factor corresponding to the photovoltaic power supply device includes at least a changeable weather condition, and the abnormal external factor corresponding to the commercial power supply device includes at least a power peak period.

[0009] According to one embodiment of the present application, the step of controlling the air conditioner to enter the pre-protection mode according to the occurrence of the abnormal external factor, specifically comprises:

[0010] controlling the air conditioner to enter the pre-protection mode according to the occurrence of the abnormal external factor of the changeable weather, wherein in the pre-protection mode, the photovoltaic power supply device supplies power to the air conditioner with a first output power lower than the photovoltaic set power, and the mains power supply device supplies power to the air conditioner with a mains set power, so that the air conditioner operates according to the set operating power.

[0011] According to one embodiment of the present application, the step of determining the occurrence of the abnormal external factor of the changeable weather, specifically comprises:

[0012] According to the temperature change condition and / or the light intensity change condition in the weather information, if at least one of the temperature change condition and the light intensity change condition meets a set condition, it is determined that the abnormal external factor of the changeable weather occurs.

[0013] According to one embodiment of the present application, the step of determining the occurrence of the abnormal external factor of the changeable weather according to the temperature change condition and / or the light intensity change condition in the weather information, specifically comprises:

[0014] generating a temperature change curve according to the temperature change condition, and / or generating a light intensity change curve according to the light intensity change condition;

[0015] if the curvature of at least one point on the temperature change curve exceeds a first set curvature range, and / or if the curvature of at least one point on the light intensity change curve exceeds a second set curvature range, it is determined that the abnormal external factor of the changeable weather occurs.

[0016] According to one embodiment of the present application, before the step of determining the occurrence of the abnormal external factor of the changeable weather according to the temperature change condition and / or the light intensity change condition in the weather information, the control method of the air conditioner further comprises:

[0017] obtaining current weather information based on a temperature sensor and / or a light intensity sensor, and obtaining future weather information based on a weather forecast;

[0018] obtaining the temperature change condition and / or the light intensity change condition according to the current weather information and the future weather information.

[0019] According to one embodiment of the present application, the step of controlling the air conditioner to enter the pre-protection mode according to the occurrence of at least one abnormal external factor specifically comprises:

[0020] determining that the air conditioner is in the power consumption peak period, and controlling the air conditioner to enter the pre-protection mode, wherein in the pre-protection mode, the photovoltaic power supply device preferentially supplies power to the air conditioner at a photovoltaic set power, and the mains power supply device supplements the power supply to the air conditioner at a second output power lower than a mains set power, so that the air conditioner operates at the set operating power.

[0021] According to one embodiment of the present application, the step of determining that the air conditioner is in the power consumption peak period specifically comprises:

[0022] obtaining a current use time of the air conditioner;

[0023] determining that the air conditioner is in the power consumption peak period according to the current use time corresponding to a peak power supply section of the power supply distribution model in the power supply cycle.

[0024] The power supply distribution model is a model of the power supply distribution of the mains power supply device in a power supply cycle obtained based on a cloud database.

[0025] According to one embodiment of the present application, the step of controlling the air conditioner to enter the pre-protection mode according to the occurrence of at least one abnormal external factor specifically comprises:

[0026] determining the occurrence of the abnormal external factor of changeable weather and that the air conditioner is in the power consumption peak period, and controlling the air conditioner to enter the pre-protection mode, wherein in the pre-protection mode, the photovoltaic power supply device preferentially supplies power to the air conditioner at a first output power lower than a photovoltaic set power, and the mains power supply device supplements the power supply to the air conditioner at a second output power lower than a mains set power.

[0027] The control device of the air conditioner according to the second embodiment of the present application, wherein the air conditioner is supplied with power by external power sources including a main power source and a supplementary power source;

[0028] The control device comprises:

[0029] a control module configured to control the air conditioner to enter a pre-protection mode according to the occurrence of at least one abnormal external factor, wherein in the pre-protection mode, the main power source and the supplementary power source simultaneously supply power to the air conditioner to enable the air conditioner to operate at a set operating power, and when the abnormal external factor occurs, the main power source and / or the supplementary power source corresponding to the abnormal external factor supply power to the air conditioner at an output power lower than a respective set power.

[0030] The abnormal external factors are used to cause the output power of the external power supply to fluctuate.

[0031] The air conditioning system according to the third aspect of the present application comprises:

[0032] The control device of the air conditioner according to the second aspect of the present application;

[0033] The air conditioner indoor unit and the air conditioner outdoor unit.

[0034] The electronic device according to the fourth aspect of the present application comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor executes the program to realize the control method of the air conditioner according to the first aspect of the present application.

[0035] The control method of the air conditioner provided by the present application can ensure the stability of the input power received by the air conditioner, thereby ensuring the stability of the voltage at both ends of the air conditioner and the stability of the operating state of the air conditioner, and further avoiding damage to the structure of the air conditioner and prolonging the service life of the air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0037] Figure 1 is one of the flowcharts of the control method of the air conditioner provided by the present application;

[0038] Figure 2 is another flowchart of the control method of the air conditioner provided by the present application;

[0039] Figure 3 is a structural schematic diagram of the control device of the air conditioner provided by the present application;

[0040] Figure 4 is a structural schematic diagram of the air conditioning system provided by the present application;

[0041] Figure 5is a structural schematic diagram of an electronic device provided by the present application. BRIEF DESCRIPTION OF DRAWINGS

[0043] 1, air conditioner indoor unit; 2, air conditioner outdoor unit; 21, electric control board; 22, air conditioner frequency conversion outer plate; 23, compressor; 3, photovoltaic power supply device; 4, mains power supply device; 110, control module; 810, processor; 820, communication interface; 830, memory; 840, communication bus. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0045] The control method, control device and air conditioner of the present application will be described below with reference to the drawings. Before the embodiments of the present application are described in detail, the entire application scenario will be described first. The control method, control device, electronic device and computer readable storage medium of the air conditioner of the embodiments of the present application can be applied to the air conditioner locally, can be applied to the cloud platform in the Internet field, or the cloud platform in other kinds of Internet fields, or can be applied to third party devices. The third party devices can include mobile phones, tablet computers, notebook computers, vehicle-mounted computers and other smart terminals of various types.

[0046] The control method suitable for the air conditioner will be described below as an example. It should be understood that the control method of the embodiments of the present application can also be applied to the cloud platform and the third party devices. It should be further noted that the control method of the air conditioner proposed by the present application is universal, that is, the method is suitable for the air conditioner to perform refrigeration or heating in a low temperature environment or a high temperature environment.

[0047] As shown in Figure 1 The control method of the air conditioner according to the first embodiment of the present application is powered by an external power supply, which includes a main power supply and a supplementary power supply. The control method includes the following steps:

[0048] At step 100, the air conditioner is controlled to enter a pre-protection mode according to occurrence of at least one abnormal external factor, wherein in the pre-protection mode, the main power supply and the supplementary power supply supply power to the air conditioner at the same time so that the air conditioner operates at the set operating power, and when the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner at an output power lower than the set power, wherein the abnormal external factor is used to cause fluctuation of the output power of the external power supply.

[0049] In one specific embodiment, the working process of the air conditioner is as follows: after the air conditioner is powered on, the controller first acquires the composition types of the external power supplies currently supplying power to the air conditioner, that is, the controller acquires the specific power supply types of the main power supply and the supplementary power supply, and then the controller analyzes based on the types of the main power supply and the types of the supplementary power supply to determine the abnormal external factors causing fluctuation of the output power of each external power supply, that is, the controller analyzes each external power supply to obtain the abnormal external factors corresponding to each external power supply, including the first abnormal factor corresponding to the main power supply and the second abnormal factor corresponding to the supplementary power supply. It should also be pointed out that the controller of the air conditioner can also receive information transmitted externally through a wireless module to obtain the above-mentioned abnormal external factors, which are not specially limited by the present application.

[0050] Further, the controller can determine whether the abnormal external factors obtained in the above steps have occurred, thereby determining whether the external power supply has the risk of output power fluctuation abnormality in the current time period and in the future time period, and if the controller determines that at least one of the abnormal external factors obtained in the above steps has occurred, the controller will control the air conditioner to enter the pre-protection mode, that is, the controller controls the external power supply corresponding to the abnormal external factor to supply power to the air conditioner at a power lower than the set power, so that the external power supply reserves part of the electric energy in the power supply process.

[0051] In the above power supply process, the main power supply supplies power preferentially and the supplementary power supply supplies power complementarily, when the first abnormal factor corresponding to the main power supply occurs, the main power supply supplies power preferentially to the air conditioner at an output power lower than the set power, and then the supplementary power supply supplies power complementarily to the air conditioner at the original set power, so that the air conditioner can operate stably at the set operating power; when the second abnormal factor corresponding to the supplementary power supply occurs, the main power supply supplies power preferentially to the air conditioner at the original set power, and then the supplementary power supply supplies power complementarily to the air conditioner at an output power lower than the set power, so that the air conditioner can operate stably at the set operating power; when both the first abnormal factor and the second abnormal factor occur, the main power supply supplies power preferentially to the air conditioner at an output power lower than the set power, and then the supplementary power supply supplies power complementarily to the air conditioner at an output power lower than the set power, so that the air conditioner can operate stably at the set operating power.

[0052] It can be understood that when the abnormal external factor occurs, the output power of the external power supply will abnormally fluctuate, and in the subsequent power supply process, the output power of the external power supply will not always be stable at the set power to supply power to the air conditioner. Therefore, if the external power supply still outputs according to the set power during the subsequent power supply, the size of the input power received by the air conditioner will continuously change and fluctuate, thereby causing the voltage at both ends of the air conditioner to be unstable, that is, the running state of the air conditioner is unstable, and thus the structure of the air conditioner is easily damaged and the service life is reduced.

[0053] Therefore, the above step is performed by executing the step of "controlling the external power supply corresponding to the abnormal external factor to supply power to the air conditioner at a power lower than the set power", so that the air conditioner enters the pre-protection mode. In the pre-protection mode, since the main power supply and / or the supplementary power supply pre-store part of the electric energy during the power supply process, the external power supply can ensure the stability of the input power to the air conditioner, and the external power supply can always meet the use demand of the air conditioner. In this way, the stability of the input power received by the air conditioner can be ensured, thereby ensuring the stability of the voltage at both ends of the air conditioner and the stability of the running state of the air conditioner, and thus avoiding the damage of the structure of the air conditioner and prolonging the service life of the air conditioner.

[0054] Among them, the composition types of the above-mentioned external power supply include but are not limited to photovoltaic power supply device 3, mains power supply device 4 or battery and the like, which are not specially limited by the present application. In addition, the above-mentioned abnormal external factor refers to an external environmental factor that has an adverse effect on the external power supply to cause abnormal fluctuation of the output power thereof.

[0055] It can be understood that the abnormal external factors corresponding to different types of external power supplies are also different. For example, the abnormal external factors affecting the output power of the photovoltaic power supply device 3 are usually related to weather conditions, lighting conditions or geographical location and the like; the abnormal external factors affecting the output power of the mains power supply device 4 are usually related to the distribution of peak electricity consumption period or mains failure and the like; and the abnormal external factors affecting the output power of the battery are usually related to the temperature of the battery or the remaining capacity of the battery and the like.

[0056] In the related art, the air conditioner does not consider the power supply condition of the external power supply during operation, that is, whether the external power supply is abnormal, the external power supply still outputs according to the set power to the air conditioner, so that when the external power supply is affected by the external environment during power supply, the output power of the external power supply may fluctuate abnormally, for example, the output power of the solar cell is unstable in the case of variable weather, and the output power of the mains fluctuates greatly in the case of peak electricity consumption. Therefore, the air conditioner in the related art does not have a risk protection mechanism when encountering abnormal conditions, resulting in large and unstable fluctuations in the voltage and power of the air conditioner, which can easily damage the structure of the air conditioner and shorten the service life of the air conditioner, and the air conditioner may even malfunction such as power failure and shutdown when the voltage fluctuates severely.

[0057] In summary, in order to solve the technical defects in the above-mentioned related art, the present application provides a control method for an air conditioner, which obtains a plurality of abnormal external factors affecting the output power of the current external power supply, and controls the air conditioner to enter a pre-protection mode when at least one of the above-mentioned abnormal external factors occurs. In the pre-protection mode, since the external power supply pre-stores part of the power during power supply, the external power supply can ensure the stability of its input power to the air conditioner, and the external power supply can always meet the use requirements of the air conditioner. In this way, the stability of the input power received by the air conditioner can be ensured, thereby ensuring the stability of the voltage at both ends of the air conditioner and the stability of the operating state of the air conditioner, thereby avoiding damage to the structure of the air conditioner and prolonging the service life of the air conditioner.

[0058] According to some embodiments of the present application, the external power supply includes a photovoltaic power supply device 3 as a main power supply and a mains power supply device 4 as a supplementary power supply, and the abnormal external factors corresponding to the photovoltaic power supply device 3 at least include variable weather, and the abnormal external factors corresponding to the mains power supply device 4 at least include peak electricity consumption.

[0059] Of course, the composition of the external power supply is not limited to the above-mentioned embodiments, and the external power supply can also include a battery and other power supplies, and in addition, the abnormal external factors are not limited to the above-mentioned embodiments, for example, the abnormal external factors corresponding to the photovoltaic power supply device 3 can also include factors such as altitude, and the present application does not make special limitations here.

[0060] According to some embodiments of the present application, after the controller obtains the composition of the external power supply, it can obtain the abnormal external factors corresponding to each external power supply from the cloud database or from the pre-stored information in the system, and the present application does not make special limitations here, and in particular, the controller can also display the composition of the external power supply on the air conditioner display screen, and obtain the abnormal external factors corresponding to each external power supply through the input of the user.

[0061] In one embodiment of the present application, the step of controlling the air conditioner to enter the pre-protection mode according to the occurrence of the abnormal external factor includes:

[0062] The occurrence of the abnormal external factor of changeable weather is determined, and the air conditioner is controlled to enter the pre-protection mode, wherein in the pre-protection mode, the photovoltaic power supply device 3 supplies power to the air conditioner with a first output power lower than the photovoltaic set power, and the power grid power supply device 4 supplies power to the air conditioner with the power grid set power, so that the air conditioner operates at the set operating power.

[0063] It can be understood that when the external environment of the photovoltaic power supply device 3 is in a changeable weather state, the power generation of the photovoltaic power supply device 3 will change due to changes in temperature conditions and light conditions and other factors. Therefore, in order to ensure the stability of the output power of the photovoltaic power supply device 3 to the air conditioner, the controller will reduce the output power of the photovoltaic power supply device 3 based on the original photovoltaic set power, so that the photovoltaic power supply device 3 always stores a part of the power, thereby ensuring that the photovoltaic power supply device 3 can always meet the demand for output power to the air conditioner, and avoiding the instability of the output power of the photovoltaic power supply device 3 to the air conditioner, thereby causing the air conditioner to have unstable voltage.

[0064] Further, the step of determining the occurrence of the abnormal external factor of changeable weather includes:

[0065] According to the temperature change condition and / or the light intensity change condition in the weather information, if at least one of the temperature change condition and the light intensity change condition meets a set condition, it is determined that the abnormal external factor of changeable weather occurs.

[0066] In this way, by analyzing the change of temperature and the change of light intensity, the change condition of the weather can be obtained, so as to determine whether the abnormal external factor of changeable weather occurs.

[0067] The set condition can be that whether the temperature value and the light intensity value exceed a set value range, or whether the temperature change rate and the light intensity change rate exceed a set change rate range. The two embodiments will be described in detail below.

[0068] In one embodiment, the step of determining the occurrence of the abnormal external factor of changeable weather according to the temperature change condition and / or the light intensity change condition in the weather information includes:

[0069] According to the temperature change condition and / or the light intensity change condition, it is determined whether the temperature value exceeds a set temperature range and whether the light intensity value exceeds a set light intensity range. If at least one of the above determinations is not met, it is determined that the abnormal external factor of changeable weather has occurred.

[0070] In another embodiment, according to the air temperature change condition and / or the light intensity change condition in the weather information, in a case where at least one of the air temperature change condition and the light intensity change condition meets a set condition, the step of determining the occurrence of the abnormal external factor of the changeable weather specifically includes:

[0071] generating an air temperature change curve according to the air temperature change condition, and / or generating a light intensity change curve according to the light intensity change condition;

[0072] determining that the curvature of at least one point on the air temperature change curve exceeds a first set curvature range, and / or determining that the curvature of at least one point on the light intensity change curve exceeds a second set curvature range, and then determining the occurrence of the abnormal external factor of the changeable weather.

[0073] It can be understood that the changeable weather can be in various forms, which can be a mutation of the air temperature and / or the light intensity, or the air temperature and / or the light intensity reaching an extremely high value or an extremely low value, and the above two situations can also occur simultaneously, so the above two embodiments can also be combined to determine whether the abnormal external factor of the changeable weather occurs.

[0074] According to some embodiments of the present application, before the step of determining the occurrence of the abnormal external factor of the changeable weather according to the air temperature change condition and / or the light intensity change condition in the weather information, in a case where at least one of the air temperature change condition and the light intensity change condition meets a set condition, the control method of the air conditioner includes:

[0075] obtaining current weather information based on an air temperature sensor and / or a light intensity sensor and obtaining future weather information based on a weather forecast;

[0076] obtaining the air temperature change condition and / or the light intensity change condition according to the current weather information and the future weather information.

[0077] In this way, the weather information in the current time period and the weather information in the future time period are obtained at the same time, and the air temperature change condition and / or the light intensity change condition are obtained based on the above two kinds of weather information, so that the change trend of the weather can be more accurately determined, and the accuracy of the determination of the abnormal external factor of the changeable weather is ensured.

[0078] According to some other embodiments of the present application, the step of controlling the air conditioner to enter a pre-protection mode according to the occurrence of the at least one abnormal external factor specifically includes:

[0079] determining that the air conditioner is in the power peak period, and controlling the air conditioner to enter the pre-protection mode, wherein in the pre-protection mode, the photovoltaic power supply device 3 preferentially supplies power to the air conditioner at a photovoltaic set power, and the mains power supply device 4 supplements power to the air conditioner at a second output power lower than the mains set power, so that the air conditioner operates at the set operating power.

[0080] It can be understood that when the mains power is in different power supply periods, the power output to the air conditioner by the mains power will change due to changes in the user's power demand, for example, when the air conditioner is currently in the power peak period (for example, in the afternoon period in summer), the power demand of the air conditioner is large, that is, the air conditioner demand is in the peak season, and therefore the fluctuation of the input power provided by the mains power supply device 4 to a single air conditioner will be more obvious.

[0081] Therefore, in order to ensure the stability of the output power of the mains power supply device 4 to the air conditioner, the controller will reduce the output power of the mains power supply device 4 on the basis of the original mains set power, so that the mains power can always store a part of the power, thereby ensuring that the mains power can always meet the demand for output power of the air conditioner, and avoiding the phenomenon that the output power of the mains power supply device 4 to the air conditioner is unstable, thereby causing the air conditioner to have unstable voltage.

[0082] Further, the step of determining that the air conditioner is in the power peak period specifically comprises:

[0083] obtaining the current use time of the air conditioner;

[0084] obtaining the position corresponding to the power distribution model of the current use time in the power supply period, and determining that the position is in the peak power supply section, and determining that the air conditioner is in the power peak period, wherein the power distribution model is a model of the power distribution of the mains power supply device in a power supply period obtained based on a cloud database.

[0085] Of course, the above embodiment is only one of the many embodiments of the present application, and the present method can also be implemented in other ways to determine whether the air conditioner is in the power peak period.

[0086] According to still another embodiment of the present application, the external power source includes the photovoltaic power supply device 3 and the mains power supply device 4, and the step of controlling the air conditioner to enter the pre-protection mode according to the occurrence of at least one abnormal external factor specifically comprises:

[0087] determining that the weather is changeable and that the air conditioner is in the power peak period, and controlling the air conditioner to enter the pre-protection mode, wherein in the pre-protection mode, the photovoltaic power supply device 3 preferentially supplies power to the air conditioner at a first output power lower than the photovoltaic set power, and the mains power supply device 4 supplements power to the air conditioner at a second output power lower than the mains set power, so that the air conditioner operates at the set operating power.

[0088] It can be understood that when the abnormal external factors of weather change and air conditioner in power peak period occur simultaneously, the controller will control the photovoltaic power supply device 3 and the mains power supply device 4 to reserve a part of the power, so as to avoid the abnormal fluctuation of voltage and power of the air conditioner, and ensure the stable operation of the air conditioner. It also needs to be explained that during the operation of the air conditioner, the external power supply can output power higher than the set running power of the air conditioner to the air conditioner, or output power lower than or equal to the set running power of the air conditioner to the air conditioner.

[0089] A specific embodiment of the control method of the air conditioner of the present application is described below with reference to the accompanying drawings.

[0090] As shown in Figure 2 The external power supply for the air conditioner includes a photovoltaic power supply device 3 and a mains power supply device 4, wherein the photovoltaic power supply device 3 and the mains power supply device 4 supply power to the air conditioner at the same time, and the photovoltaic power supply device 3 is the main power supply and supplies power first, and the mains power supply device 4 is the supplementary power supply and supplies power supplementarily. After the air conditioner is turned on, it first receives the weather change condition and the mains power change condition in the current period through the WiFi module, and judges whether the current weather is changeable and / or the mains power is in the power peak period based on the above obtained information.

[0091] When the weather is cloudy and the current is in the summer mains power peak period, the air conditioner enters the pre-protection mode. After entering the mode, the air conditioner is powered by solar energy and then powered by mains power, but the photovoltaic power supply device 3 and the mains power supply device 4 reserve a part of the power to prevent too large power drop and cause the air conditioner to stop.

[0092] Among them, after the air conditioner enters the pre-protection mode, if only the abnormal external factor of weather change is present, the photovoltaic power supply device 3 supplies power to the air conditioner at 80% of the photovoltaic set power, and the remaining power is supplied by the mains power supply device 4 as the supplementary power supply; if only the abnormal external factor of the air conditioner in the power peak period is present, the photovoltaic power supply device 3 supplies power to the air conditioner at the photovoltaic set power, and the remaining power is supplied by the mains power supply device 4 to the air conditioner at 80% of the photovoltaic set power; if the abnormal external factors of weather change and air conditioner in power peak period occur simultaneously, the air conditioner is first powered by solar energy and then powered by mains power, and the photovoltaic power supply device 3 supplies power to the air conditioner at 80% of the photovoltaic set power, and the mains power supply device 4 supplies power to the air conditioner at 80% of the photovoltaic set power.

[0093] It should be noted that in the present application, whether the abnormal external factors occur or not, and regardless of the occurrence of any abnormal external factors, the air conditioner can maintain the set running power.

[0094] The control device of the air conditioner provided by the present application is described below, and the control device of the air conditioner described below can be referred to in correspondence with the control method of the air conditioner described above.

[0095] As shown in Figure 3 the control device of the air conditioner according to the second aspect of the present application, the air conditioner is powered by external power sources, which include a main power source and a supplementary power source; the control device includes:

[0096] a control module 110, configured to control the air conditioner to enter a pre-protection mode according to the occurrence of at least one abnormal external factor, wherein in the pre-protection mode, the main power source and the supplementary power source simultaneously power the air conditioner to operate at a set operating power, and when the abnormal external factor occurs, the main power source and / or the supplementary power source corresponding to the abnormal external factor powers the air conditioner at an output power lower than the respective set power.

[0097] As shown in Figure 4 the air conditioner system according to the third aspect of the present application, which includes a controller for executing the control method of the air conditioner described above, or a control device of the air conditioner, and further includes an air conditioner indoor unit 1 and an air conditioner outdoor unit 2.

[0098] The control device of the air conditioner and the air conditioner according to the embodiments of the present application can ensure the stability of the input power received by the air conditioner, thereby ensuring the stability of the voltage at both ends of the air conditioner and the stability of the operating state of the air conditioner, and further avoiding damage to the structure of the air conditioner and prolonging the service life of the air conditioner.

[0099] As shown in Figure 4 According to some embodiments of the present application, the air conditioner outdoor unit 2 includes an electric control board 21, an air conditioner frequency conversion outer board 22 and a compressor 23 connected in sequence, wherein the electric control board 21 is an isolated boost electric control board 21 on which a photovoltaic maximum power tracking algorithm is recorded, the photovoltaic power supply device 3 provides direct current to the air conditioner frequency conversion outer board 22 through the electric control board 21, and the commercial power supply device 4 provides direct current to the compressor 23 and the indoor unit 1 through the air conditioner frequency conversion outer board 22.

[0100] Figure 5 An example of a schematic diagram of the physical structure of an electronic device is shown in Figure 5As shown, the electronic device can include a processor 810, a communications interface 820, a memory 830, and a communications bus 840, wherein the processor 810, the communications interface 820, and the memory 830 complete communications with each other through the communications bus 840. The processor 810 can invoke a logical instruction in the memory 830 to execute a control method of an air conditioner, the method including controlling the air conditioner to enter a pre-protection mode according to occurrence of at least one abnormal external factor, wherein in the pre-protection mode, a main power supply and a supplementary power supply simultaneously supply power to the air conditioner to cause the air conditioner to operate according to a set operating power, and when the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner according to an output power lower than a respective set power.

[0101] In addition, the logical instruction in the memory 830 described above can be implemented in the form of a software functional unit and sold or used as an independent product, and can be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application essentially or parts contributing to the prior art, or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0102] On the other hand, the present application also provides a computer program product, the computer program product comprising a computer program, the computer program being storable on a non-transitory computer-readable storage medium, and the computer program being executable by a processor to cause a computer to execute a control method of an air conditioner, the method including controlling the air conditioner to enter a pre-protection mode according to occurrence of at least one abnormal external factor, wherein in the pre-protection mode, a main power supply and a supplementary power supply simultaneously supply power to the air conditioner to cause the air conditioner to operate according to a set operating power, and when the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner according to an output power lower than a respective set power.

[0103] In yet another aspect, the present application also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a control method of an air conditioner, the method comprising: controlling the air conditioner to enter a pre-protection mode according to occurrence of at least one abnormal external factor, wherein in the pre-protection mode, the main power supply and the supplementary power supply supply power to the air conditioner at the same time so that the air conditioner operates at a set operating power, and when the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner at an output power lower than the respective set power.

[0104] The device embodiments described above are merely illustrative, wherein the units shown as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0105] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software plus necessary universal hardware platforms, and of course can also be realized by hardware. Based on such understanding, the above technical solutions, essentially or in other words, the part that contributes to the prior art, can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods of the various embodiments or some parts of the embodiments.

[0106] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.​

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner is powered by an external power source, which includes a main power source and a supplementary power source. The control method includes: Based on the occurrence of at least one abnormal external factor, the air conditioner is controlled to enter a pre-protection mode. In the pre-protection mode, the main power supply and the supplementary power supply simultaneously supply power to the air conditioner so that the air conditioner operates at a set operating power. When the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner at an output power lower than their respective set power. The abnormal external factors are used to cause fluctuations in the output power of the external power supply; The external power source includes a photovoltaic power supply device as the main power source and a mains power supply device as a supplementary power source. The abnormal external factors corresponding to the photovoltaic power supply device include at least variable weather, and the abnormal external factors corresponding to the mains power supply device include at least peak electricity consumption periods. The step of controlling the air conditioner to enter the pre-protection mode based on the occurrence of at least one abnormal external factor specifically includes: If the occurrence of abnormal external factors causing changeable weather is determined, the air conditioner is controlled to enter a pre-protection mode. In the pre-protection mode, the photovoltaic power supply device prioritizes power supply to the air conditioner with a first output power lower than the photovoltaic set power, and the mains power supply device supplements the air conditioner with the mains set power, so that the air conditioner operates according to the set operating power. If the air conditioner is determined to be in the peak electricity consumption period, the air conditioner is controlled to enter the pre-protection mode. In the pre-protection mode, the photovoltaic power supply device prioritizes power supply to the air conditioner at the photovoltaic set power, and the mains power supply device supplements the air conditioner with a second output power lower than the mains power set power, so that the air conditioner operates according to the set operating power. If the occurrence of abnormal external factors such as variable weather is determined, and the air conditioner is in the peak electricity consumption period, the air conditioner is controlled to enter a pre-protection mode. In the pre-protection mode, the photovoltaic power supply device prioritizes power supply to the air conditioner with a first output power lower than the photovoltaic set power, and the mains power supply device supplements power supply to the air conditioner with a second output power lower than the mains set power.

2. The air conditioning control method according to claim 1, characterized in that, The step of determining the occurrence of the abnormal external factors causing the changeable weather specifically includes: Based on the temperature changes and / or light intensity changes in the weather information, if at least one of the temperature changes and light intensity changes meets a set condition, the occurrence of the abnormal external factors causing the changeable weather is determined.

3. The air conditioning control method according to claim 2, characterized in that, The step of determining the occurrence of abnormal external factors causing variable weather, based on temperature changes and / or light intensity changes in weather information, and provided that at least one of the temperature changes and light intensity changes meets a preset condition, specifically includes: A temperature change curve is generated based on the temperature change, and / or a light intensity change curve is generated based on the light intensity change. If it is determined that the curvature of at least one point on the temperature change curve exceeds a first set curvature range, and / or if it is determined that the curvature of at least one point on the light intensity change curve exceeds a second set curvature range, then the occurrence of abnormal external factors causing weather variability is determined.

4. The air conditioning control method according to claim 2, characterized in that, Before the step of determining the occurrence of the abnormal external factor of weather variability based on the temperature change and / or light intensity change in the weather information, provided that at least one of the temperature change and light intensity change conditions meets a set condition, the method further includes: Current weather information is obtained based on temperature sensors and / or light intensity sensors, and future weather information is obtained based on weather forecasts; Based on the current weather information and the future weather information, obtain the temperature change status and / or the light intensity change status.

5. The air conditioning control method according to claim 1, characterized in that, The step of determining that the air conditioner is in the peak electricity consumption period specifically includes: Obtain the current usage time of the air conditioner; Based on the fact that the current usage time corresponds to the peak power supply segment in the power supply distribution model within the power supply cycle, it is determined that the air conditioner is in the peak electricity consumption period. The power supply distribution model is a model of the power supply distribution of the mains power supply device within a power supply cycle, obtained based on a cloud database.

6. A control device for an air conditioner, characterized in that, The air conditioner is powered by an external power source, which includes a main power source and a supplementary power source. The control device includes: The control module is used to control the air conditioner to enter a pre-protection mode based on the occurrence of at least one abnormal external factor. In the pre-protection mode, the main power supply and the supplementary power supply simultaneously supply power to the air conditioner so that the air conditioner operates at a set operating power. When the abnormal external factor occurs, the main power supply and / or the supplementary power supply corresponding to the abnormal external factor supply power to the air conditioner at an output power lower than their respective set power. The abnormal external factors are used to cause fluctuations in the output power of the external power supply; The external power source includes a photovoltaic power supply device as the main power source and a mains power supply device as a supplementary power source. The abnormal external factors corresponding to the photovoltaic power supply device include at least variable weather, and the abnormal external factors corresponding to the mains power supply device include at least peak electricity consumption periods. The step of controlling the air conditioner to enter the pre-protection mode based on the occurrence of at least one abnormal external factor specifically includes: If the occurrence of abnormal external factors causing changeable weather is determined, the air conditioner is controlled to enter a pre-protection mode. In the pre-protection mode, the photovoltaic power supply device prioritizes power supply to the air conditioner with a first output power lower than the photovoltaic set power, and the mains power supply device supplements the air conditioner with the mains set power, so that the air conditioner operates according to the set operating power. If the air conditioner is determined to be in the peak electricity consumption period, the air conditioner is controlled to enter the pre-protection mode. In the pre-protection mode, the photovoltaic power supply device prioritizes power supply to the air conditioner at the photovoltaic set power, and the mains power supply device supplements the air conditioner with a second output power lower than the mains power set power, so that the air conditioner operates according to the set operating power. If the occurrence of abnormal external factors such as variable weather is determined, and the air conditioner is in the peak electricity consumption period, the air conditioner is controlled to enter a pre-protection mode. In the pre-protection mode, the photovoltaic power supply device prioritizes power supply to the air conditioner with a first output power lower than the photovoltaic set power, and the mains power supply device supplements power supply to the air conditioner with a second output power lower than the mains set power.

7. An air conditioning system, characterized in that, include: The air conditioner control device as described in claim 6; Air conditioner indoor unit and air conditioner outdoor unit.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the air conditioning control method as described in any one of claims 1 to 5.

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