CN113883687A - Fan control method and device of air conditioner, air conditioner and storage medium - Google Patents
Fan control method and device of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN113883687A CN113883687A CN202111200092.4A CN202111200092A CN113883687A CN 113883687 A CN113883687 A CN 113883687A CN 202111200092 A CN202111200092 A CN 202111200092A CN 113883687 A CN113883687 A CN 113883687A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses a fan control method and device of an air conditioner, the air conditioner and a storage medium, wherein the method comprises the following steps: acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in an air conditioner; calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature; determining a target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference; and controlling the outdoor fan to operate according to the target rotating speed. The initial rotating speed of the outdoor unit of the air conditioner is adjusted by correlating the rainfall, the outdoor temperature and the rainfall are integrated to carry out accurate control, and the energy consumed by the running of the fan is reduced while the comfort of the air conditioner is ensured so as to achieve the purpose of energy conservation.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a fan control method and device of an air conditioner, the air conditioner and a storage medium.
Background
Currently, with the popularization of air conditioners, the reliability and energy conservation of the air conditioners are increasingly concerned by users, especially in the aspects of improving the protection of the air conditioners and reducing the energy consumption in the rainy weather.
The conventional air conditioner reduces energy consumption in rainy days, and the initial rotating speed of an outdoor unit of the air conditioner is mainly adjusted through the temperature of a condenser, the higher the temperature of the condenser is in a refrigeration mode under ordinary conditions, the higher the rotating speed is, the lower the temperature of the condenser is, the lower the rotating speed is, but an air conditioning system has hysteresis, namely the temperature of the condenser cannot be timely reduced just before raining, so that the purpose of timely adjusting and controlling the initial rotating speed of the air conditioner to save energy is not facilitated.
Disclosure of Invention
The embodiment of the invention provides a fan control method and device of an air conditioner, the air conditioner and a storage medium, and aims to solve the problem of power consumption increase caused by the fact that the rotating speed of an outdoor unit of the air conditioner is controlled only through the temperature of a condenser.
In one aspect, an embodiment of the present invention provides a method for controlling a fan of an air conditioner, where the method includes:
acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in an air conditioner;
calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature;
determining a target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference;
and controlling the outdoor fan to operate according to the target rotating speed.
In some embodiments of the present invention, the determining the target rotation speed of the outdoor fan according to the rainfall, the initial rotation speed, and the variation of the indoor and outdoor temperature differences includes:
comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold, and comparing the rainfall with a preset rainfall threshold;
if the variation of the indoor and outdoor temperature difference is larger than the preset variation threshold and the rainfall is larger than the preset rainfall threshold, determining the target rotating speed of the outdoor fan according to the initial rotating speed and the rainfall;
and if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold and the rainfall is less than or equal to the preset rainfall threshold, determining the target rotating speed of the outdoor fan according to the initial rotating speed and the temperature of the condenser in the air conditioner.
In some embodiments of the present invention, the determining the target rotation speed of the outdoor fan according to the initial rotation speed and the rainfall includes:
calculating a difference value between a preset rainfall standard value and the rainfall, wherein a ratio of the difference value to the preset rainfall standard value is set as a rotation speed adjusting coefficient;
and calculating the product of the rotating speed regulating coefficient and the initial rotating speed to obtain the target rotating speed of the outdoor fan.
In some embodiments of the present invention, before calculating the difference between the preset standard rainfall value and the rainfall and calculating the rotation speed adjustment coefficient by the ratio of the difference to the preset standard rainfall value, the method comprises:
acquiring weather information of an environment where an air conditioner is located in a first time;
counting precipitation data according to the weather information;
according to the statistical characteristics of the precipitation data, at least one precipitation numerical value in the precipitation data and the frequency corresponding to each precipitation numerical value are counted;
and carrying out weighted average on the precipitation data according to the precipitation numerical values and the frequency corresponding to each precipitation numerical value to obtain a precipitation standard value.
In some embodiments of the present invention, the determining the target rotation speed of the outdoor fan based on the initial rotation speed and the condenser temperature in the air conditioner includes:
acquiring the temperature of a condenser in an air conditioner;
if the condenser temperature is smaller than or equal to a preset temperature threshold value, acquiring a target rotating speed reduction value corresponding to the condenser temperature according to a preset mapping relation between the temperature and the rotating speed;
and determining the target rotating speed of the outdoor fan according to the initial rotating speed and the target rotating speed reduction value.
In some embodiments of the present invention, after controlling the outdoor fan to operate at the target rotation speed, the method includes:
acquiring new rainfall, and calculating a change value between the new rainfall and the rainfall;
comparing the change value with a preset change threshold value;
if the change value is larger than or equal to a preset change threshold value, reducing the target rotating speed according to the change value;
and if the change value is smaller than a preset change threshold value, the target rotating speed is increased according to the change value.
In some embodiments of the present invention, the obtaining of the rainfall, the indoor temperature, the outdoor temperature and the initial rotation speed of the outdoor fan in the air conditioner includes:
the rainfall is obtained through at least one rainfall sensor arranged on an outdoor fan in the air conditioner, and/or the rainfall is obtained through a terminal in communication connection with the air conditioner;
and acquiring the indoor temperature, the outdoor temperature and the initial rotating speed of an outdoor fan in the air conditioner.
In some embodiments of the present invention, after controlling the outdoor fan to operate at the target rotation speed, the method includes:
acquiring new rainfall, and comparing the new rainfall with a preset early warning rainfall threshold;
and if the new rainfall reaches the preset early warning rainfall threshold value, controlling the outdoor fan to stop.
On the other hand, an embodiment of the present invention provides a blower control device for an air conditioner, where the blower control device for an air conditioner includes:
the acquisition module is used for acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in the air conditioner;
a calculation module for calculating an indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature;
the adjusting module is used for determining the target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference;
and the control module is used for controlling the outdoor fan to operate according to the target rotating speed.
In another aspect, an embodiment of the present invention provides an air conditioner, including a memory and a processor; the memory stores an application program, and the processor is used for running the application program in the memory so as to execute the operation in the fan control method of the air conditioner.
In another aspect, an embodiment of the present invention provides a storage medium, where the storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to perform the steps in the method for controlling a fan of an air conditioner.
The embodiment of the invention obtains rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in the air conditioner; calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature; determining a target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference; controlling the outdoor fan to operate according to the target rotating speed; the initial rotating speed of the outdoor unit of the air conditioner is adjusted by correlating the rainfall, the outdoor temperature and the rainfall are integrated to carry out accurate control, and the energy consumed by the running of the fan is reduced while the comfort of the air conditioner is ensured so as to achieve the purpose of energy conservation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating an embodiment of a method for controlling a fan of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an embodiment of controlling safe operation of a fan in a fan control method for an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an embodiment of determining a target rotation speed in a fan control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating an embodiment of a standard rainfall value preset in a fan control method of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating an embodiment of determining a target rotation speed based on rainfall in a fan control method for an air conditioner according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating an embodiment of determining a target rotational speed based on a condenser temperature in a blower control method for an air conditioner according to an embodiment of the present invention;
fig. 7 is a schematic flow chart illustrating a fan control method of an air conditioner according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of an embodiment of a fan control device of an air conditioner according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an embodiment of an air conditioner according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a fan control method and device of an air conditioner, the air conditioner and a storage medium. According to an embodiment of the method for controlling a fan of an air conditioner provided by the embodiment of the present invention, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the schematic diagram, in some cases, the steps described or shown may be executed in an order different from the execution order here.
The fan control method of the air conditioner provided by the embodiment of the invention can be applied to the air conditioner. In some embodiments of the present invention, the air conditioner may be a household air conditioner or an industrial air conditioner. In some embodiments of the invention, the air conditioner may be a single air conditioner, such as a cabinet air conditioner or a wall-mounted air conditioner; in some embodiments of the present invention, the air conditioner may also be an air conditioning unit composed of a plurality of air conditioners, for example, a multi-connected air conditioner composed of a plurality of air conditioners.
In some embodiments of the present invention, the air conditioner may be a split type air conditioner, and includes an indoor unit, an outdoor unit, a control unit and a connection unit, wherein the control unit is configured to control the indoor unit and the outdoor unit, the connection unit is configured to connect the outdoor unit and the indoor unit, the indoor unit includes an indoor fan, and the outdoor unit includes an outdoor fan and an outdoor compressor. In some embodiments of the present invention, a fan control method of an air conditioner is used to control a rotation speed of an outdoor fan of the air conditioner.
As shown in fig. 1, fig. 1 is a schematic flow chart of an embodiment of a fan control method of an air conditioner provided in an embodiment of the present invention, where the fan control method of the air conditioner includes steps 101 to 104:
The rainfall can be the instantaneous rainfall in the environment where the outdoor fan of the air conditioner is located; it may also be an average rainfall in the environment where the outdoor fan of the air conditioner is located, for example, an average rainfall in a unit time, wherein the unit time may be 1 second or 1 minute. In some embodiments of the present invention, the rainfall may be obtained by a sensor mounted on the outdoor fan, for example, by a rainfall sensor. In some embodiments of the present invention, the rainfall may also be obtained through a terminal in communication connection with the air conditioner, for example, through one or more terminals in a mobile phone, a smart band, and a background server in communication connection with the air conditioner.
The indoor temperature may be an indoor temperature preset by a user, such as a preset cooling temperature; or may be an indoor air temperature, such as an indoor average temperature. In some embodiments of the present invention, when the indoor temperature is an indoor temperature preset by a user, a preset temperature of an indoor unit in the air conditioner is acquired; when the indoor temperature is an indoor air temperature, the indoor air temperature is acquired by the temperature sensor. In some embodiments of the present invention, the acquiring of the indoor air temperature by the temperature sensor may be acquiring the indoor air temperature by a temperature sensor arranged in an indoor unit of the air conditioner, for example, acquiring the outlet air temperature by a temperature sensor arranged at an outlet of the indoor unit of the air conditioner as the indoor air temperature; the indoor air temperature obtained by the temperature sensor may be the indoor air temperature sent by the temperature sensor connected to the air conditioner in communication, for example, the indoor air temperature sent by the temperature sensor provided in another household appliance.
The initial rotating speed of the indoor and outdoor fans in the air conditioner can be the rotating speed of the outdoor fan corresponding to the indoor temperature preset by a user, and can also be the current rotating speed of the outdoor fan in the air conditioner.
In some embodiments of the present invention, the outdoor temperature may be collected by a temperature sensor provided at an outdoor unit of the air conditioner, for example, a temperature sensor provided at an outdoor compressor of the air conditioner; the outdoor temperature sent by the terminal in communication connection with the air conditioner can also be received, for example, the outdoor temperature sent by one or more terminals in a mobile phone, a smart band and a background server in communication connection with the air conditioner is received.
In some embodiments of the present invention, the acquiring of the outdoor temperature may be acquiring the outdoor temperature at intervals of a preset time period. The preset time may be any one of 60s, 90s, and 120 s. Acquiring the outdoor temperature is understood to mean acquiring the outdoor temperature at intervals of 60s, acquiring the outdoor temperature at intervals of 90s, and acquiring the outdoor temperature at intervals of 120 s.
In some embodiments of the present invention, whether the temperature in the chamber changes within a preset time period is detected, and if the temperature in the chamber does not change within the preset time period, an indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature is calculated; and if the indoor temperature changes within the preset time period, acquiring a new indoor temperature, and calculating the indoor and outdoor temperature difference between the new indoor temperature and the outdoor temperature.
And 103, determining the target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference.
The variation of the indoor and outdoor temperature difference refers to the variation of the indoor and outdoor temperature difference caused by the indoor and outdoor temperature variation within a preset time period.
In some embodiments of the present invention, an indoor temperature and an outdoor temperature are collected every a preset time period, a new indoor temperature is compared with a previous indoor temperature collected before the preset time period, and if the new indoor temperature is equal to the previous indoor temperature, a temperature difference between the new outdoor temperature and a billion outdoor temperature collected before the preset time period is calculated as a variation amount of an indoor and outdoor temperature difference; and if the new indoor temperature is greater than or equal to the previous indoor temperature, calculating a first temperature difference between the new outdoor temperature and the new indoor temperature and a second temperature difference between the previous outdoor temperature and the new indoor temperature, and subtracting the second temperature difference from the first temperature difference to obtain the variation of the indoor and outdoor temperature differences. When the air conditioner operates in a refrigeration mode, when rainfall occurs in an outdoor environment, the rainwater splashes onto the fan blades of the outdoor fan, the blades are washed and cooled, the outdoor temperature is reduced due to the rainfall, the indoor and outdoor temperature difference is reduced, the energy consumption of the air conditioner can be reduced while the indoor refrigeration is ensured by reducing the rotating speed of the outdoor fan, and the rotating speed of the fan is reduced as the rainfall is larger, so that the energy saving of the air conditioner is facilitated. The target rotation speed of the outdoor fan in the air conditioner may be obtained by subtracting or adding the variation value of the rotation speed from the initial rotation speed, for example, the target rotation speed may be obtained by subtracting the reduction value of the rotation speed from the initial rotation speed. The variation of the rotating speed can also be a variation coefficient, and the target rotating speed of the outdoor fan in the air conditioner is obtained by the product of the variation coefficient and the initial rotating speed.
In some embodiments of the present invention, step 103 may comprise: and comparing the rainfall with a preset rainfall threshold, comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold, and determining the target rotating speed of an outdoor fan in the air conditioner according to the comparison result. Specifically, the rainfall is compared with a preset rainfall threshold value, the variation of the indoor and outdoor temperature difference is compared with a preset variation threshold value, if the variation of the indoor and outdoor temperature difference is larger than the preset variation threshold value and the rainfall is larger than the preset rainfall threshold value, the outdoor temperature is reduced due to environmental rainfall, and then the initial rotating speed of an outdoor fan in the air conditioner is adjusted according to the rainfall so as to reduce the energy consumption of the air conditioner.
In some embodiments of the present invention, the preset variation threshold is a temperature reduction threshold of the outdoor temperature, the variation of the indoor and outdoor temperature difference is compared with the preset variation threshold, and if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold, it indicates that the outdoor temperature is reduced within the preset time, and the outdoor temperature reduction value reaches the temperature reduction threshold of the outdoor temperature; if the variation of the indoor and outdoor temperature difference is smaller than or equal to the preset variation threshold, the indoor and outdoor temperature is not changed within the preset time, or the reduction value of the outdoor temperature is lower than the cooling threshold of the outdoor temperature.
In some embodiments of the present invention, in order to provide a refined control for the fan of the air conditioner, when detecting that the variation of the indoor and outdoor temperature differences is less than or equal to the preset variation threshold, the variation of the indoor and outdoor temperature differences is compared with the preset second variation threshold, if the variation of the indoor and outdoor temperature differences is less than the preset second variation threshold, indicating that temperature rise occurs outdoors, a new indoor and outdoor temperature difference between a new outdoor temperature and a new indoor temperature is calculated, and the rotation speed of the indoor fan and the initial rotation speed of the outdoor fan of the air conditioner are increased according to the new indoor and outdoor temperature difference; if the variation of the indoor and outdoor temperature difference is larger than or equal to the preset second variation threshold, which indicates that the indoor and outdoor temperature does not change within the preset time or the reduction value of the outdoor temperature is lower than the cooling threshold of the outdoor temperature, the initial rotating speed of the outdoor fan in the air conditioner is not adjusted, and the outdoor temperature and the indoor temperature are continuously monitored. The preset second variation threshold is used for indicating the temperature rise condition of the outdoor temperature, and is smaller than the preset variation threshold.
In some embodiments of the present invention, the preset rainfall threshold may be adjusted according to rainfall data of an environment where the air conditioner is located in a historical time period, specifically, the method includes steps a1 to a 3:
step a1, acquiring the current preset rainfall threshold and rainfall data of the environment where the air conditioner is located in the historical time period.
The current preset rainfall threshold may be an initial preset rainfall threshold, or an adjusted initial preset rainfall threshold. The initial preset rainfall threshold refers to a rainfall threshold preset when the air conditioner leaves a factory or when the air conditioner is installed.
The historical time period may be the past month, the past three months, or the past year, and the obtaining of the rainfall data of the environment where the air conditioner is located in the historical time period may be understood as obtaining the rainfall data of the environment where the air conditioner is located in the past month, obtaining the rainfall data of the environment where the air conditioner is located in the past three months, and obtaining the rainfall data of the environment where the air conditioner is located in the past year.
Step a2, the rainfall data is counted to obtain the distribution characteristics of the rainfall data.
The distribution characteristics include, but are not limited to, average rainfall in the rainfall data, maximum value of rainfall, minimum value of rainfall, mode of rainfall, median of rainfall, and variance of rainfall.
Step a3, correcting the current preset rainfall threshold according to the distribution characteristics to obtain the preset rainfall threshold.
In some embodiments of the present invention, the modifying the current preset rainfall threshold according to the distribution characteristics may be comparing the distribution characteristics with the current preset rainfall threshold; if the distribution characteristic is larger than or equal to the current preset rainfall threshold, the current preset rainfall threshold is not adjusted, and the current preset rainfall threshold is used as the preset rainfall threshold; and if the distribution characteristic is smaller than the current preset rainfall threshold, taking the distribution characteristic as the preset rainfall threshold. For example, when the distribution characteristic is an average rainfall, the average rainfall is compared with a current preset rainfall threshold; if the average rainfall is larger than or equal to the current preset rainfall threshold, the current preset rainfall threshold is not adjusted, and the current preset rainfall threshold is used as the preset rainfall threshold; and if the average rainfall is smaller than the current preset rainfall threshold, taking the average rainfall as the preset rainfall threshold.
It should be noted that the updating manner of the preset rainfall threshold is only an exemplary illustration, and the setting manner and the updating manner of the preset rainfall threshold are not limited in the embodiment of the present invention, and the preset rainfall threshold may be adjusted according to the actual application scenario of the air conditioner and the operation parameters of the outdoor fan in the air conditioner, where the operation parameters of the outdoor fan in the air conditioner include the average rotation speed of the outdoor fan, the rated power of the outdoor fan, the performance of the outdoor fan, and the like.
In some embodiments of the present invention, the target rotation speed of the outdoor fan in the air conditioner is determined according to the rainfall, the initial rotation speed, and the variation of the indoor and outdoor temperature differences, and the target rotation speed of the outdoor fan in the air conditioner may be calculated through a preset rotation speed calculation model according to the rainfall, the initial rotation speed, and the variation of the indoor and outdoor temperature differences. In some embodiments of the present invention, the preset rotation speed calculation model may be a neural network model, or may be other rotation speed calculation models, such as a preset mixed integer programming model or a mathematical fitting model.
In some embodiments of the present invention, determining the target rotation speed of the outdoor fan in the air conditioner according to the rainfall amount, the initial rotation speed, and the variation amount of the indoor and outdoor temperature difference may include: comparing the rainfall with a preset rainfall threshold, comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold, if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold and the rainfall is greater than the preset rainfall threshold, acquiring the current rotating speed of the outdoor fan, calculating a target rotating speed variation value corresponding to the rainfall through a preset rotating speed calculation model according to the rainfall, and adding the initial rotating speed and the target rotating speed variation value of the outdoor fan to obtain the target rotating speed corresponding to the rainfall.
In some embodiments of the present invention, determining the target rotation speed of the outdoor fan in the air conditioner according to the rainfall, the initial rotation speed, and the variation of the indoor and outdoor temperature difference may further include: and comparing the rainfall with a preset rainfall threshold, comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold, and calculating a target rotating speed corresponding to the rainfall through a preset rotating speed calculation model according to the rainfall and the initial rotating speed if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold and the rainfall is greater than the preset rainfall threshold.
In some embodiments of the present invention, if the variation of the indoor and outdoor temperature differences is greater than the preset variation threshold, and the rainfall is less than or equal to the preset rainfall threshold, which indicates that the outdoor temperature is decreased, but no rainfall occurs or the rainfall is less, in order to reduce the power consumption of the air conditioner and provide a refined fan control, the initial rotation speed of the outdoor fan is adjusted according to the indoor and outdoor temperature differences between the indoor temperature and the outdoor temperature, specifically: if the variation of the indoor and outdoor temperature difference is larger than a preset variation threshold and the rainfall is smaller than or equal to a preset rainfall threshold, acquiring the indoor temperature, and calculating the indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature; comparing the indoor and outdoor temperature difference with a preset indoor and outdoor temperature difference threshold, and if the indoor and outdoor temperature difference is less than or equal to the preset indoor and outdoor temperature difference threshold, reducing the initial rotating speed of the outdoor fan according to the indoor and outdoor temperature difference; and if the indoor and outdoor temperature difference is greater than the preset indoor and outdoor temperature difference threshold value, the initial rotating speed of the outdoor fan is increased.
In some embodiments of the present invention, a target wind speed reduction value corresponding to the indoor and outdoor temperature difference may be obtained according to the indoor and outdoor temperature difference and the preset mapping relationship between the temperature difference and the wind speed, and the initial rotation speed of the outdoor fan may be reduced according to the target wind speed reduction value. The preset mapping relation between the temperature difference and the rotating speed is used for indicating the corresponding relation between the indoor and outdoor temperature difference and the rotating speed of the fan, for example, when the indoor and outdoor temperature difference meets the requirements of [5 ℃, 10 ℃, the corresponding target wind speed reduction value is 0, namely, the outdoor fan is controlled to continue to operate according to the initial rotating speed; when the indoor and outdoor temperature difference meets the requirements of 0 ℃ and 5 ℃, the corresponding target wind speed reduction value is 10, namely the initial rotating speed of the outdoor fan is reduced by 10. It should be noted that the preset mapping relationship between the temperature difference and the rotation speed is only an exemplary illustration, and the embodiment of the present invention does not limit the preset mapping relationship between the temperature difference and the rotation speed, the indoor and outdoor temperature difference, and the corresponding target wind speed reduction value.
And 104, controlling the outdoor fan to operate according to the target rotating speed.
In some embodiments of the present invention, in order to improve the fineness of the control of the outdoor fan and enhance the user experience, after step 104, the new rainfall is monitored in real time, whether the new rainfall is less than or equal to the preset rainfall threshold is determined, if the new rainfall is less than or equal to the preset rainfall threshold, the condenser temperature in the air conditioner is obtained, and the rotation speed of the outdoor fan is adjusted according to the condenser temperature, specifically, the method includes steps b 1-b 6:
and step b1, acquiring new rainfall, and comparing the new rainfall with a preset rainfall threshold.
And b2, if the new rainfall is less than or equal to the preset rainfall threshold, acquiring the temperature of the condenser in the air conditioner.
And step b3, comparing the condenser temperature in the air conditioner with a preset temperature threshold value.
And b4, if the condenser temperature in the air conditioner is less than or equal to the preset temperature threshold, inquiring the mapping relation between the preset temperature and the rotating speed, and acquiring a second target rotating speed corresponding to the condenser temperature.
For example, as shown in table one, the table is an illustration of the mapping relationship between the preset temperature and the rotation speed provided in the embodiment of the present invention, and in the shown mapping relationship between the preset temperature and the rotation speed, when the condenser temperature satisfies that the condenser temperature is greater than or equal to a1 ℃ and less than a2 ℃, the corresponding rotation speed of the outdoor fan is the first fan rotation speed; when the temperature of the condenser meets the condition that the temperature of the condenser is more than or equal to A2 ℃ and less than A3 ℃, the corresponding rotating speed of the outdoor fan is the rotating speed of the second fan; and when the temperature of the condenser meets the condition that the temperature of the condenser is more than or equal to A3 ℃ and less than or equal to a preset temperature threshold value, the corresponding rotating speed of the outdoor fan is the rotating speed of the third fan. Wherein a1, a2, A3 satisfy a1< a2< A3< a preset temperature threshold, and the first fan speed < the second fan speed < the third fan speed. In some embodiments of the present invention, the first fan rotation speed, the second fan rotation speed, and the third fan rotation speed may be set according to performance of the air conditioner, for example, when a windshield of an outdoor fan of the air conditioner includes a low wind gear, a medium wind gear, and a high wind gear, the first fan rotation speed may be a fan rotation speed corresponding to the low wind gear, the second fan rotation speed may be a fan rotation speed corresponding to the medium wind gear, and the third fan rotation speed may be a fan rotation speed corresponding to the medium wind gear. In some embodiments of the present invention, the predetermined temperature-to-rotational speed mapping relationship may be determined experimentally.
Table-preset mapping relationship between temperature and rotation speed
| Condenser temperature | Outdoor fan rotating speed |
| The temperature of a condenser is less than or equal to A1 DEG C<A2℃ | First fan speed |
| The temperature of a condenser is less than or equal to A2 DEG C<A3℃ | Second fan speed |
| The temperature of the condenser is more than or equal to A3 ℃ and less than or equal to the preset temperature threshold value | Third fan speed |
It should be noted that the preset mapping relationship between the temperature and the rotation speed shown in the table i is only an exemplary description, and the embodiment of the present invention does not limit the value of the condenser temperature, the rotation speed of the outdoor fan, and the mapping relationship between the temperature and the rotation speed, and the preset mapping relationship between the temperature and the rotation speed may be adjusted according to the actual application scenario of the air conditioner and the performance parameter of the air conditioner.
And b5, if the condenser temperature in the air conditioner is larger than the preset temperature threshold, taking the initial rotating speed of the outdoor fan as a second target rotating speed.
And b6, controlling the outdoor fan to operate according to the second target rotating speed.
In some embodiments of the present invention, if the new rainfall is greater than the preset rainfall threshold, a third target rotation speed corresponding to the new rainfall is calculated according to the new rainfall through a preset rotation speed calculation model, and the rotation speed of the outdoor fan is adjusted according to the third target rotation speed.
The embodiment of the invention adjusts the initial rotating speed of the outdoor unit of the air conditioner by correlating the rainfall amount, integrates the outdoor temperature and the rainfall amount to carry out accurate control, and reduces the energy consumed by the running of the fan to achieve the aim of saving energy while ensuring the comfort of the air conditioner.
In some embodiments of the present invention, in order to reduce energy consumption of the air conditioner, in step 101, a placement position of an outdoor unit of the air conditioner is monitored, and whether rainfall is obtained is determined according to the placement position, specifically, steps c1 to c4 are included:
and c1, obtaining the outdoor temperature difference in the preset time and the setting position of the outdoor unit of the air conditioner.
And c2, judging whether the setting position is an open air position.
And c3, if the setting position is an open air position, acquiring rainfall, indoor temperature, initial rotating speed and outdoor temperature.
In some embodiments of the present invention, if the installation location is an open air location, which indicates that rainwater may splash onto the blades of the outdoor fan of the air conditioner, the rainfall, the indoor temperature, the initial rotation speed, and the outdoor temperature are obtained.
And c4, if the setting position is not the open air position, acquiring the indoor temperature and the outdoor temperature, and adjusting the rotating speed of the outdoor fan according to the indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature.
In some embodiments of the present invention, if the setting position is not an open position, it indicates that rainwater does not splash onto a fan blade of an outdoor fan in the air conditioner, and the rotation speed of the outdoor fan is adjusted according to an indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature, according to the obtained indoor temperature and the outdoor temperature, regardless of the rainfall, specifically, if the setting position is not an open position, the outdoor temperature difference is compared with a preset outdoor temperature difference by a variation amount of the indoor and outdoor temperature differences; if the outdoor temperature difference is less than or equal to the preset outdoor temperature difference, the rotating speed of the fan of the air conditioner is not adjusted; if the outdoor temperature difference is larger than the preset outdoor temperature difference, acquiring the indoor temperature; and adjusting the rotating speed of the outdoor fan according to the temperature difference between the indoor temperature and the outdoor temperature. The method for adjusting the rotation speed of the fan of the air conditioner according to the temperature difference between the indoor temperature and the outdoor temperature is similar to the method for adjusting the rotation speed of the fan of the air conditioner according to the indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature in step 103, and is not described herein again.
In some embodiments of the present invention, if the setting position is not an outdoor position, the rotation speed of the fan of the air conditioner may be adjusted according to the outdoor temperature difference, or if the setting position is not an outdoor position, the outdoor temperature difference may be compared with a preset outdoor temperature difference; and if the outdoor temperature difference is greater than the preset outdoor temperature difference, acquiring the temperature of a condenser of the air conditioner, and adjusting the rotating speed of an outdoor fan according to the temperature of the condenser. The method for adjusting the rotating speed of the outdoor fan according to the temperature of the condenser is similar to the method for adjusting the rotating speed of the outdoor fan according to the temperature of the condenser in steps b3 and b4, and is not repeated here.
In some embodiments of the present invention, in order to ensure normal operation of the air conditioner in rainy days, after step 104, it is detected whether the new rainfall reaches the preset early warning rainfall, and if the new rainfall reaches the preset early warning rainfall, the air conditioner is stopped by controlling the outdoor fan, so that the air conditioner does not refrigerate any more. The preset early warning rainfall refers to a safe rainfall limit value that an outdoor fan of the air conditioner can normally run, when the rainfall in the environment reaches the safe rainfall limit value, the outdoor fan of the air conditioner cannot timely discharge water splashed onto the blades, the running of the air conditioner is affected, and the service life of the air conditioner is shortened. In some embodiments of the present invention, the preset early warning rainfall may be set according to the performance of the air conditioner. Specifically, as shown in fig. 2, fig. 2 is a schematic flow chart of an embodiment of controlling safe operation of a fan in a fan control method of an air conditioner provided in an embodiment of the present invention, where the method for controlling safe operation of a fan includes steps 201 to 202:
In some embodiments of the present invention, the new rainfall is compared with a preset early warning rainfall threshold, if the new rainfall is greater than or equal to the preset early warning rainfall threshold, it is determined that the new rainfall reaches the preset early warning rainfall threshold, and if the new rainfall is less than the preset early warning rainfall threshold, it is determined that the new rainfall does not reach the preset early warning rainfall threshold.
And step 202, if the new rainfall reaches a preset early warning rainfall threshold, controlling the outdoor fan to stop.
In some embodiments of the present invention, if the new rainfall reaches the preset early warning rainfall threshold, the outdoor fan is controlled to stop, and the outdoor compressor is controlled to stop, so that the air conditioner does not refrigerate any more.
In some embodiments of the present invention, if the new rainfall reaches the preset early warning rainfall threshold, sending rainfall early warning information to the indoor unit and the user, so that the indoor unit obtains the water level of the water pan of the air conditioner according to the rainfall early warning information, comparing the water level with the preset early warning water level, if the water level is greater than or equal to the preset early warning water level, controlling the outdoor fan to stop, controlling the outdoor compressor to stop, if the water level is less than the preset early warning water level, controlling the outdoor fan to operate at the preset minimum rotation speed, and controlling the outdoor compressor to operate at the preset minimum frequency.
In some embodiments of the present invention, if the new rainfall does not reach the preset early warning rainfall threshold, the air conditioner is controlled to adjust the rotation speed of the outdoor fan according to the temperature of the condenser, specifically, the method includes steps d 1-d 3:
and d1, judging whether the new rainfall is less than or equal to the preset rainfall threshold.
In some embodiments of the present invention, the new rainfall is compared with a preset rainfall threshold to determine whether the new rainfall is less than or equal to the preset rainfall threshold.
And d2, if the new rainfall is less than or equal to the preset rainfall threshold, calculating the temperature change value of the condenser in the air conditioner, and acquiring a new indoor temperature and a new outdoor temperature.
The condenser temperature change value in the air conditioner refers to a temperature difference between a current condenser temperature and an initial condenser temperature in the air conditioner, wherein the initial condenser temperature may be a temperature corresponding to a condenser when the outdoor fan operates at a target rotation speed.
In some embodiments of the present invention, if the new rainfall is less than or equal to the preset rainfall threshold, the new rainfall is decreased, and is lower than the preset rainfall threshold, and the accuracy of the rotation speed of the outdoor fan in the air conditioner may be decreased by adjusting the rotation speed of the outdoor fan according to the rainfall, so that the rotation speed of the outdoor fan is adjusted by detecting the change value of the condenser temperature in the air conditioner, the new indoor temperature and the new outdoor temperature.
In some embodiments of the present invention, if the new rainfall is less than or equal to the preset rainfall threshold, the condenser temperature is obtained, the temperature difference between the condenser temperature and the initial condenser temperature is calculated as the condenser temperature variation value in the air conditioner, and the new indoor temperature and the new outdoor temperature are obtained through the obtaining method of the indoor temperature and the outdoor temperature in step 101.
And d3, adjusting the target rotating speed according to the condenser temperature change value, the new indoor temperature and the new outdoor temperature.
In some embodiments of the present invention, step d3 includes: comparing the condenser temperature change value with a preset temperature change value, if the condenser temperature change value is smaller than the preset temperature change value, indicating that the condenser temperature is reduced, calculating the current indoor and outdoor temperature difference between the new indoor temperature and the new outdoor temperature, and adjusting the target rotating speed according to the condenser temperature change value and the current indoor and outdoor temperature difference; if the condenser temperature change value is greater than or equal to the preset temperature change value, comparing the condenser temperature change value with a second preset temperature change value, if the condenser temperature change value is greater than or equal to the second preset temperature change value, indicating that the condenser temperature is increased, calculating a current indoor and outdoor temperature difference between a new indoor temperature and a new outdoor temperature, and increasing the target rotating speed according to the condenser temperature change value and the current indoor and outdoor temperature difference; and if the temperature change value of the condenser is smaller than the second preset temperature change value and is greater than or equal to the preset temperature change value, controlling the outdoor fan of the air conditioner to continuously operate according to the target rotating speed. The preset temperature change value is a real number smaller than zero, the second preset temperature change value is a real number larger than zero, and the second preset temperature change value is larger than the preset temperature change value.
In some embodiments of the present invention, a current indoor and outdoor temperature difference between the new indoor temperature and the new outdoor temperature is calculated, and the target rotation speed is adjusted according to the condenser temperature variation value and the current indoor and outdoor temperature difference, wherein the current indoor and outdoor temperature difference is compared with a preset indoor and outdoor temperature difference threshold; if the current indoor and outdoor temperature difference is less than or equal to the preset indoor and outdoor temperature difference threshold value, the indoor and outdoor temperature difference is small, controlling the outdoor fan of the air conditioner to continuously operate according to the target rotating speed; if the current indoor and outdoor temperature difference is greater than the preset indoor and outdoor temperature difference threshold value, the indoor and outdoor temperature difference is large, the rotating speed of the outdoor fan needs to be increased to guarantee the indoor refrigerating capacity, the comfort of a user is improved, the mapping relation between the preset temperature and the rotating speed is inquired, the second target rotating speed corresponding to the temperature of the condenser is obtained, and the target rotating speed is adjusted according to the second target rotating speed. The method for obtaining the second target rotation speed corresponding to the condenser temperature by querying the preset mapping relationship between the temperature and the rotation speed is similar to the method for obtaining the second target rotation speed corresponding to the condenser temperature in step b4, and is not repeated here.
In some embodiments of the present invention, a current indoor and outdoor temperature difference between the new indoor temperature and the new outdoor temperature is calculated, and the target rotation speed is adjusted according to the condenser temperature variation value and the current indoor and outdoor temperature difference, or the current indoor and outdoor temperature difference is compared with a preset indoor and outdoor temperature difference threshold; and if the current indoor and outdoor temperature difference is smaller than or equal to the preset indoor and outdoor temperature difference threshold value, which indicates that the indoor and outdoor temperature difference is small, inquiring the mapping relation between the preset temperature and the rotating speed, acquiring a second target rotating speed corresponding to the condenser temperature, and adjusting the target rotating speed according to the second target rotating speed. The method for obtaining the second target rotation speed corresponding to the condenser temperature by querying the preset mapping relationship between the temperature and the rotation speed is similar to the method for obtaining the second target rotation speed corresponding to the condenser temperature in step b4, and is not repeated here; and if the current indoor and outdoor temperature difference is greater than the preset indoor and outdoor temperature difference threshold value, adjusting the rotating speed of the outdoor fan according to the current indoor and outdoor temperature difference. The method for adjusting the rotation speed of the outdoor fan according to the current indoor and outdoor temperature difference is similar to the method for adjusting the rotation speed of the outdoor fan according to the indoor and outdoor temperature difference in step 103, and is not described herein again.
According to the embodiment of the invention, after the outdoor fan is controlled to operate according to the target rotating speed, the new rainfall in the environment where the outdoor unit is located is collected in real time, if the new rainfall reaches the preset early warning rainfall, the outdoor fan is controlled to stop, so that the air conditioner does not refrigerate any more, and the normal operation of the air conditioner in rainy days is ensured and the service life of the air conditioner is prolonged under the new rainfall; if the preset early warning rainfall is not reached, controlling the air conditioner to adjust the rotating speed of the outdoor fan according to the temperature of the condenser, and combining a rotating speed adjusting method based on the rainfall with a rotating speed adjusting method based on the temperature of the condenser to improve the flexibility and the applicability of the fan control method of the air conditioner; and when the rainfall is lower than the preset rainfall threshold value, a rotating speed adjusting method based on the temperature of the condenser is added, and the accuracy of the rotating speed of the fan is improved.
In some embodiments of the present invention, in order to improve the fan refinement control of the air conditioner, the variation of the indoor and outdoor temperature difference is compared with a preset variation threshold, the rainfall is compared with a preset rainfall threshold, and the target rotation speed of the outdoor fan is determined according to the comparison result, specifically, as shown in fig. 3, fig. 3 is a flowchart illustrating an embodiment of determining the target rotation speed in the fan control method of the air conditioner provided in the embodiment of the present invention, where the illustrated method of determining the target rotation speed includes steps 301 to 303:
In some embodiments of the present invention, if the variation of the indoor and outdoor temperature differences is greater than the preset variation threshold and the rainfall is greater than the preset rainfall threshold, the preset rainfall standard value is obtained, and the target rotation speed of the outdoor fan is calculated according to the difference between the preset rainfall standard value and the rainfall. Specifically, as shown in fig. 4, fig. 4 is a flow diagram of an embodiment of a preset standard rainfall value in a fan control method of an air conditioner provided in an embodiment of the present invention, where the preset standard rainfall value includes steps 401 to 404:
The environment of the air conditioner can be a street area where the air conditioner is located, an urban area where the air conditioner is located, or a province where the air conditioner is located.
The first time refers to a past period of time including any one of the past month, the past three months, the past six months, and the past year. In some embodiments of the present invention, the obtaining of the weather information of the environment in which the air conditioner is located in the first time may be obtaining the weather information of the environment in which the air conditioner is located in the past month, obtaining the weather information of the environment in which the air conditioner is located in the past three months, obtaining the weather information of the environment in which the air conditioner is located in the past six months, and obtaining the weather information of the environment in which the air conditioner is located in the past year. In some embodiments of the present invention, the weather information includes normal weather information and abnormal weather information, where the normal weather includes a sunny day, a cloudy day, and the normal weather information includes days and temperatures corresponding to each normal weather; the abnormal weather includes, but is not limited to, rainy days, snowy days, haze days and hail days, and the abnormal weather information includes days corresponding to each abnormal weather, rainfall information of rainy days, snowy rainfall information of snowy days, visibility and haze concentration of haze days, and the like. The rainfall information of the rainy day comprises the number of days of the rainy day, the rainfall duration of the rainy day, the maximum rainfall and the average rainfall of the whole day, and the snowfall information of the snowy day comprises the number of days of the snowy day, the snowfall duration of the snowy day, the maximum snowfall and the temperature.
In some embodiments of the present invention, the weather information of the environment where the air conditioner is located in the first time may be obtained through a terminal in communication connection with the air conditioner.
And step 402, counting precipitation data according to the weather information.
The precipitation data refers to the precipitation per rainfall, the length of the rainfall, the average precipitation per rainfall, the maximum precipitation and the minimum precipitation per rainfall for an area over a first time.
In some embodiments of the present invention, the rainfall data of each rainfall in the first time of the environment where the air conditioner is located may be counted according to the number of days of the rainy day, the rainfall duration of the rainy day, the maximum rainfall and the average rainfall of the whole day.
And 403, counting at least one precipitation amount value in the precipitation amount data and the frequency corresponding to each precipitation amount value according to the statistical characteristics of the precipitation amount data.
The statistical features include at least one of mean, maximum, minimum, median, mode, variance, and standard deviation.
In some embodiments of the present invention, the statistics of at least one precipitation amount value in the precipitation amount data and the frequency corresponding to each precipitation amount value may be performed to calculate a daily average precipitation amount of an environment in which the air conditioner is located in a first time and a number of occurrences of each daily average precipitation amount in the first time. For example, the environment where the air conditioner is located is counted to generate 12 precipitation within one month, and the daily average precipitation of each precipitation is respectively: m1, M1, M2, M3, M3, M4, M1, M2, M1, M1, M1 and M3, and counting the number of times that the daily average precipitation is M1, the number of times that the daily average precipitation is M2, the number of times that the daily average precipitation is M3 and the number of times that the daily average precipitation is M4 in one month is 6, 2 and 1.
And step 404, carrying out weighted average on precipitation data according to the precipitation numerical values and the frequency corresponding to each precipitation numerical value to obtain a precipitation standard value.
In some embodiments of the present invention, step 404 comprises: and counting the total rainfall times in the first time, taking the ratio of each frequency to the total rainfall times as a weight, calculating the product of the rainfall numerical value corresponding to each frequency and the corresponding weight, and accumulating the products to obtain the rainfall standard value. For example, the environment where the air conditioner is located has 12 precipitation within one month, the number of times that the daily average precipitation is 50 mm in one month is 6, the number of times that the daily average precipitation is 30 mm is 2, the number of times that the daily average precipitation is 70 mm is 3, and the number of times that the daily average precipitation is 138 mm is 1 are obtained through statistics, and the precipitation data is weighted and averaged according to the precipitation numerical values and the frequency corresponding to each precipitation numerical value, so that the standard precipitation value is 59 mm.
In some embodiments of the present invention, the rainfall standard value may also be set according to at least one of the average value, the maximum value, the minimum value, the median, the mode, the variance and the standard deviation of the rainfall data, for example, the maximum value of the rainfall in the first time of the environment where the air conditioner is located is set as the rainfall standard value; the mode of the rainfall of the environment where the air conditioner is located in the first time can be set as a standard rainfall value; the median of the rainfall of the environment where the air conditioner is located in the first time can also be set as a standard rainfall value; the difference value between the maximum value and the minimum value of the precipitation of the air conditioner in the first time can be used as the standard rainfall value.
In some embodiments of the present invention, the rainfall amount, the rainfall duration, the average rainfall amount, the maximum rainfall amount, and the minimum rainfall amount of each rainfall in the first time may be counted, the maximum value, the minimum value, the mode of the rainfall amount, and the median of the rainfall amount of the environment where the air conditioner is located in the first time may be counted, the average rainfall amount in the first time may be calculated according to the rainfall amount of each rainfall and the number of rainings, and the rainfall variance and the rainfall standard deviation may be obtained according to the average rainfall amount.
According to the embodiment of the invention, the rainfall standard value is set through the rainfall data of the environment where the air conditioner is located in the historical time period, and the rainfall standard value is updated according to the rainfall of the actual application environment, so that the flexibility of the rainfall standard value presetting method in the air conditioner is improved, and the applicability of the fan control method of the air conditioner is improved.
As shown in fig. 5, fig. 5 is a schematic flow chart of an embodiment of determining a target rotation speed based on a rainfall in a fan control method of an air conditioner according to an embodiment of the present invention, where the method for determining a target rotation speed based on a rainfall includes steps 501 to 502:
The rotating speed adjusting coefficient is used for quantifying the adjusting quantity of the rotating speed of the outdoor fan corresponding to the rainfall.
In some embodiments of the present invention, in order to calculate an adjustment amount of rainfall corresponding to a rotation speed of an outdoor fan, by acquiring rainfall data of an environment where an air conditioner is located in a first time and an operation parameter of the air conditioner, calculating an actual power consumption of the air conditioner corresponding to a preset rainfall standard value according to the operation parameter of the air conditioner, obtaining a preset power consumption of the air conditioner corresponding to the preset rainfall standard value, taking a ratio between the actual power consumption of the air conditioner and the preset power consumption of the air conditioner as an adjustment parameter, calculating a difference value between each rainfall standard value and the preset rainfall standard value, obtaining a preset target power consumption corresponding to each rainfall according to the adjustment parameter, the difference value and the preset power consumption, calculating the actual power consumption of the air conditioner corresponding to each rainfall, minimizing the difference value between the actual power consumption and the preset target power consumption as a target function, and applying the target function to the rainfall data, and performing data fitting on the operating parameters of the air conditioner, and establishing a rotating speed regulation model [ ((R-Y)/R) -alpha ] of the outdoor fan, wherein R represents a preset standard rainfall value, Y represents rainfall at each time, and alpha refers to a regulation parameter, and in some embodiments of the invention, alpha is a real number smaller than 1. In some embodiments of the present invention, the preset power consumption refers to the lowest power consumption corresponding to a preset standard rainfall value, and the preset target power consumption refers to the lowest power consumption corresponding to each rainfall. In some embodiments of the present invention, obtaining the preset power consumption of the air conditioner corresponding to the preset standard rainfall value may be obtaining the preset power consumption of the air conditioner corresponding to the preset standard rainfall value through a preset mapping relationship between the standard rainfall value and the power consumption, where the preset mapping relationship between the standard rainfall value and the power consumption is used to indicate a corresponding relationship between the standard rainfall value and the power consumption of the air conditioner.
In some embodiments of the present invention, the obtaining of the preset target power consumption corresponding to each rainfall according to the adjustment parameter, the difference value, and the preset power consumption may be that a ratio between the difference value and a preset rainfall standard value is subtracted from the adjustment parameter, the adjustment parameter is corrected, and the preset power consumption is multiplied by the corrected adjustment parameter to obtain the preset target power consumption corresponding to each rainfall.
In some embodiments of the present invention, a difference R-Y between the preset standard rainfall value R and the rainfall Y is calculated, and the rotation speed adjustment coefficient is calculated by a ratio (R-Y)/R) between the difference (R-Y) and the preset standard rainfall value R. In order to facilitate adjustment and universality improvement, after the ratio (R-Y)/R) between the difference (R-Y) and a preset rainfall standard value R is obtained, the difference between the ratio (R-Y)/R) and the adjustment parameter alpha is calculated, and the rotation speed adjustment coefficient is obtained.
In some embodiments of the present invention, the rotation speed adjustment coefficient is calculated by a rotation speed adjustment model [ ((R-Y)/R) - α ] of the outdoor fan according to a preset rainfall standard value and rainfall. In some embodiments of the present invention, in order to increase the convenience and applicability of the rotation speed adjustment, so that the rotation speed of the outdoor fan of the air conditioner is gradually reduced with the increase of the rainfall, the preset standard rainfall value is compared with the rainfall, and the rotation speed adjustment model of the outdoor fan is adjusted according to the comparison result. Specifically, whether the difference between a preset standard rainfall value and the rainfall is greater than or equal to 0 is judged; if the difference value between the preset rainfall standard value and the rainfall is greater than or equal to 0, calculating a rotating speed adjusting coefficient through [ ((R-Y)/R) + alpha ]; and if the difference value between the preset rainfall standard value and the rainfall is less than 0, calculating the rotating speed adjusting coefficient through [ ((R-Y)/R) -alpha ].
And 502, calculating the product of the rotating speed regulating coefficient and the initial rotating speed to obtain the target rotating speed of the outdoor fan.
In some embodiments of the present invention, a product [ ((R-Y)/R) - α ] F of a rotation speed adjustment coefficient [ ((R-Y)/R) - α ] and an initial rotation speed F is calculated to obtain a target rotation speed F of the outdoor fan.
And 303, if the variation of the indoor and outdoor temperature difference is greater than a preset variation threshold and the rainfall is less than or equal to a preset rainfall threshold, determining the target rotating speed of the outdoor fan according to the initial rotating speed and the temperature of the condenser in the air conditioner.
In some embodiments of the present invention, a target rotation speed reduction value corresponding to a condenser temperature may be obtained according to a preset mapping relationship between a temperature and a rotation speed, specifically, as shown in fig. 6, fig. 6 is a flowchart illustrating an embodiment of determining a target rotation speed based on a condenser temperature in a fan control method of an air conditioner provided in an embodiment of the present invention, where the illustrated method of determining a target rotation speed based on a condenser temperature includes steps 601 to 603:
In some embodiments of the present invention, if the variation of the indoor and outdoor temperature differences is greater than the preset variation threshold and the rainfall is less than or equal to the preset rainfall threshold, because the difference between the rainfall and the preset rainfall standard value is small, the difference between the calculated target rotation speed and the initial rotation speed is small, which is not beneficial to energy saving of the air conditioner. The condenser temperature can be the surface temperature of the condenser or the temperature of the condenser outlet pipe flow path.
The preset mapping relationship between the temperature and the rotation speed is used for indicating the corresponding relationship between the condenser temperature and the rotation speed reduction value, for example, as shown in table two, which is another schematic of the preset mapping relationship between the temperature and the rotation speed provided by the embodiment of the present invention, in the shown mapping relationship between the preset temperature and the rotation speed, when the condenser temperature satisfies that the condenser temperature is greater than or equal to a1 ℃ and less than a2 ℃, the corresponding target rotation speed reduction value is the first rotation speed reduction value; when the temperature of the condenser meets the condition that the temperature of the condenser is more than or equal to A2 ℃ and less than A3 ℃, the corresponding target rotating speed reduction value is a second rotating speed reduction value; and when the condenser temperature meets the condition that the condenser temperature is greater than or equal to A3 ℃ and less than or equal to a preset temperature threshold value, the corresponding target rotating speed reduction value is a third rotating speed reduction value. Wherein a1, a2, A3 satisfy a1< a2< A3< a preset temperature threshold, and the first rotation speed reduction value < the second rotation speed reduction value < the third rotation speed reduction value, and in some embodiments of the present invention, the first rotation speed reduction value, the second rotation speed reduction value, and the third rotation speed reduction value may be set according to the performance of the air conditioner. In some embodiments of the present invention, the method for obtaining the target rotation speed reduction value corresponding to the condenser temperature according to the preset mapping relationship between the temperature and the rotation speed is similar to the method for obtaining the second target rotation speed corresponding to the condenser temperature by querying the preset mapping relationship between the temperature and the rotation speed in step b4, and details thereof are not repeated here.
Table two preset mapping relation of temperature and rotating speed
| Condenser temperature | Reduction of rotational speed |
| The temperature of a condenser is less than or equal to A1 DEG C<A2℃ | First reduced rotation speed value |
| The temperature of a condenser is less than or equal to A2 DEG C<A3℃ | Second reduced rotation speed value |
| The temperature of the condenser is more than or equal to A3 ℃ and less than or equal to the preset temperature threshold value | Second reduced rotation speed value |
It should be noted that the preset mapping relationship between the temperature and the rotation speed shown in the table two is only an exemplary description, and the embodiment of the present invention does not limit the numerical value of the condenser temperature, the reduction value of the rotation speed of the outdoor fan, and the mapping relationship between the temperature and the rotation speed, and the preset mapping relationship between the temperature and the rotation speed may be adjusted according to the actual application scenario of the air conditioner and the performance of the air conditioner.
In some embodiments of the present invention, after the target rotation speed reduction value is obtained, the target rotation speed of the outdoor fan is obtained by subtracting the target rotation speed reduction value from the initial rotation speed.
In some embodiments of the present invention, if the condenser temperature is greater than the preset temperature threshold, the outdoor fan of the air conditioner is controlled to operate at the initial rotation speed.
In some embodiments of the present invention, in order to increase the applicability of the blower control method of the air conditioner and increase the comfort of indoor users, when it is detected that the condenser temperature is greater than the preset temperature threshold, a target rotation speed increase value corresponding to the condenser temperature is determined according to the condenser temperature, and specifically includes steps e 1-e 2:
and e1, if the condenser temperature is greater than the preset temperature threshold, obtaining a target rotating speed increasing value corresponding to the condenser temperature according to the preset mapping relation between the temperature and the rotating speed increasing value.
Wherein the preset mapping relationship between the temperature and the rotation speed increase value is used to indicate a corresponding relationship between the condenser temperature and the rotation speed increase value of the outdoor fan, for example, when the condenser temperature satisfies a preset temperature threshold < condenser temperature < a4 ℃, the corresponding target rotation speed increase value is 0; when the temperature of the condenser meets the condition that the temperature of the condenser is more than or equal to A4 ℃ and less than A5 ℃, the corresponding target rotating speed increasing value is a first rotating speed increasing value; and when the condenser temperature meets the condition that the temperature of the condenser is equal to or less than A5 ℃, the corresponding target rotating speed increasing value is a second rotating speed increasing value. Wherein a4, a5 satisfy a5> a4> preset temperature threshold, and 0< first speed increase value < second speed increase value.
And e2, obtaining the target rotating speed of the outdoor fan by adding the initial rotating speed and the target rotating speed increasing value.
According to the embodiment of the invention, the rotating speed adjusting method based on rainfall capacity is combined with the rotating speed adjusting method based on condenser temperature, so that the flexibility and the applicability of the fan control method of the air conditioner are improved; and when the rainfall is lower than the preset rainfall threshold value, a rotating speed adjusting method based on the temperature of the condenser is added, and the accuracy of the rotating speed of the fan is improved.
In some embodiments of the present invention, in order to further reduce the energy consumption of the air conditioner, after step 104, a new amount of rainfall is obtained, a variation value between the new amount of rainfall and the amount of rainfall is calculated, and the rotation speed of the outdoor fan of the air conditioner is adjusted according to the variation value. For example, the rainfall change condition may be determined by the change value, and the rotation speed of the outdoor fan may be adjusted according to the rainfall change condition, for example, when the rainfall increases, the target rotation speed may be reduced, when the rainfall does not change, the operation may be continued according to the target rotation speed, and when the rainfall decreases, the target rotation speed may be increased. Specifically, as shown in fig. 7, fig. 7 is a schematic flow chart of another embodiment of a fan control method of an air conditioner according to an embodiment of the present invention, where the fan control method of the air conditioner includes steps 701 to 704:
and 701, acquiring a new rainfall, and calculating a change value between the new rainfall and the rainfall.
The change value is used to indicate the rainfall change, and illustratively, the new rainfall and the change value between the rainfall are obtained by subtracting the rainfall from the new rainfall, when the change value is greater than 0, the rainfall is increased, when the change value is equal to 0, the rainfall is not changed, and when the change value is less than 0, the rainfall is decreased.
In some embodiments of the invention, a new rainfall is obtained, and whether the new rainfall is greater than a preset rainfall threshold is judged; if the new rainfall is larger than the preset rainfall threshold, calculating a change value between the new rainfall and the rainfall; and if the new rainfall is less than or equal to the preset rainfall threshold, executing the steps b 1-b 6 to obtain the temperature of the condenser in the air conditioner, and adjusting the target rotating speed of the outdoor fan according to the temperature of the condenser.
In some embodiments of the present invention, the preset variation threshold may be 0.
And 703, if the variation value is greater than or equal to the preset variation threshold, reducing the target rotating speed according to the variation value.
In some embodiments of the present invention, if the variation value is greater than or equal to the preset variation threshold, which indicates that the rainfall is increased or the rainfall is not changed, the rotation speed reduction value is calculated according to the variation value, and the target rotation speed is adjusted by subtracting the rotation speed reduction value from the target rotation speed.
In some embodiments of the present invention, the calculating the rotation speed reduction value according to the variation value may be calculating a ratio Δ Y/R of the variation value Δ Y to a preset rainfall standard value R, calculating a product (Δ Y/R) F of the ratio Δ Y/R and the initial rotation speed F, taking the product (Δ Y/R) F as the rotation speed reduction value Δ F, and adjusting the target rotation speed by subtracting the rotation speed reduction value Δ F from the target rotation speed F. For example, when the change value is 0, that is, when the rainfall is not changed, the rotation speed reduction value is 0 by Δ F ═ Δ Y/R × (F), that is, the rotation speed of the outdoor fan of the air conditioner is not adjusted, and the outdoor fan of the air conditioner is controlled to continue to operate at the target rotation speed.
In step 704, if the variation value is smaller than the preset variation threshold, the target rotation speed is increased according to the variation value.
In some embodiments of the present invention, if the variation value is smaller than the preset variation threshold, which indicates that the rainfall is decreased, the rotation speed increase value is calculated according to the variation value, and the target rotation speed is adjusted by adding the rotation speed increase value to the target rotation speed.
In some embodiments of the present invention, the method for calculating the rotation speed increasing value according to the variation value is similar to the method for calculating the rotation speed decreasing value according to the variation value in step 703, and is not repeated here.
The embodiment of the invention obtains the new rainfall, calculates the change value between the new rainfall and the rainfall, adjusts the rotating speed of the outdoor fan of the air conditioner according to the change value, adjusts the rotating speed of the outdoor fan in real time according to the change condition of the rainfall and further reduces the energy consumption of the air conditioner.
In order to better implement the fan control method of the air conditioner provided by the embodiment of the present invention, on the basis of the fan control method of the air conditioner, a fan control device of the air conditioner is provided, as shown in fig. 8, fig. 8 is a schematic structural view of an embodiment of the fan control device of the air conditioner provided by the embodiment of the present invention, and the fan control device of the air conditioner includes:
an obtaining module 801, configured to obtain rainfall, indoor temperature, outdoor temperature, and an initial rotation speed of an outdoor fan in an air conditioner;
a calculating module 802 for calculating an indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature;
an adjusting module 803, configured to determine a target rotation speed of the outdoor fan according to the rainfall, the initial rotation speed, and the variation of the indoor and outdoor temperature differences;
and the control module 804 is used for controlling the outdoor fan to operate according to the target rotating speed.
In some embodiments of the present invention, the adjusting module 803 comprises:
the judging unit is used for comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold value and comparing the rainfall with a preset rainfall threshold value;
the rainfall-based adjusting unit is used for determining a target rotating speed of the outdoor fan according to the initial rotating speed and the rainfall if the variation of the indoor and outdoor temperature difference is larger than the preset variation threshold and the rainfall is larger than the preset rainfall threshold;
and the temperature-based adjusting unit is used for determining the target rotating speed of the outdoor fan according to the initial rotating speed and the temperature of the condenser in the air conditioner if the variation of the indoor and outdoor temperature difference is larger than the preset variation threshold and the rainfall is smaller than or equal to the preset rainfall threshold.
In some embodiments of the invention, the rainfall-based adjustment unit comprises:
the coefficient calculating subunit is used for calculating a difference value between a preset rainfall standard value and the rainfall, and setting a ratio of the difference value to the preset rainfall standard value as a rotating speed regulating coefficient;
and the rotating speed calculating subunit is used for calculating the product of the rotating speed regulating coefficient and the initial rotating speed to obtain the target rotating speed of the outdoor fan.
In some embodiments of the invention, the rainfall-based adjustment unit further comprises:
the coefficient setting subunit is used for acquiring the weather information of the environment where the air conditioner is located in the first time;
according to the statistical characteristics of the precipitation data, at least one precipitation numerical value in the precipitation data and the frequency corresponding to each precipitation numerical value are counted;
and carrying out weighted average on the precipitation data according to the precipitation numerical values and the frequency corresponding to each precipitation numerical value to obtain a precipitation standard value.
In some embodiments of the invention, the temperature-based conditioning unit comprises:
the acquiring subunit is used for acquiring the temperature of a condenser in the air conditioner;
the temperature judgment subunit is configured to, if the condenser temperature is less than or equal to a preset temperature threshold, obtain a target rotation speed reduction value corresponding to the condenser temperature according to a preset mapping relationship between the temperature and the rotation speed;
and the rotating speed calculating subunit is used for determining the target rotating speed of the outdoor fan according to the initial rotating speed and the target rotating speed reduction value.
In some embodiments of the present invention, the blower control device of an air conditioner further includes:
a rainfall monitoring module 805, configured to obtain a new rainfall, and calculate a variation value between the new rainfall and the rainfall; comparing the change value with a preset change threshold value; if the change value is larger than or equal to a preset change threshold value, reducing the target rotating speed according to the change value; and if the change value is smaller than a preset change threshold value, the target rotating speed is increased according to the change value.
In some embodiments of the present invention, the obtaining module 801 further includes:
the first acquisition unit is used for acquiring rainfall through at least one rainfall sensor arranged on an outdoor fan in the air conditioner and/or acquiring the rainfall through a terminal in communication connection with the air conditioner;
and the second acquisition unit is used for acquiring the indoor temperature, the outdoor temperature and the initial rotating speed of an outdoor fan in the air conditioner.
In some embodiments of the present invention, the blower control device of an air conditioner further includes:
a rotation speed adjusting module 806, configured to obtain a new rainfall, and compare the new rainfall with a preset early warning rainfall threshold; and if the new rainfall reaches the preset early warning rainfall threshold value, controlling the outdoor fan to stop.
The embodiment of the invention adjusts the initial rotating speed of the outdoor unit of the air conditioner by correlating the rainfall amount, integrates the outdoor temperature and the rainfall amount to carry out accurate control, and reduces the energy consumed by the running of the fan to achieve the aim of saving energy while ensuring the comfort of the air conditioner.
An embodiment of the present invention further provides an air conditioner, as shown in fig. 9, which shows a schematic structural diagram of the air conditioner according to the embodiment of the present invention, specifically:
the air conditioner may include components such as a processor 901 of one or more processing cores, memory 902 of one or more computer-readable storage media, a power supply 903, and an input unit 904. Those skilled in the art will appreciate that the air conditioner configuration shown in fig. 9 is not intended to be limiting and may include more or fewer components than shown, or some components in combination, or a different arrangement of components. Wherein:
the processor 901 is a control center of the air conditioner, connects various parts of the whole air conditioner by using various interfaces and lines, and performs various functions of the air conditioner and processes data by running or executing software programs and/or modules stored in the memory 902 and calling data stored in the memory 902, thereby performing overall monitoring of the air conditioner. Optionally, processor 901 may include one or more processing cores; preferably, the processor 901 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 901.
The memory 902 may be used to store software programs and modules, and the processor 901 executes various functional applications and data processing by operating the software programs and modules stored in the memory 902. The memory 902 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the air conditioner, and the like. Further, the memory 902 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 902 may also include a memory controller to provide the processor 901 access to the memory 902.
The air conditioner further comprises a power supply 903 for supplying power to each component, and preferably, the power supply 903 can be logically connected with the processor 901 through a power management system, so that functions of charging, discharging, power consumption management and the like can be managed through the power management system. The power supply 903 may also include any component including one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The air conditioner may further include an input unit 904, and the input unit 904 may be used to receive input numeric or character information and generate a keyboard, mouse, joystick, optical or trackball signal input related to user setting and function control.
Although not shown, the air conditioner may further include a display unit and the like, which will not be described in detail herein. Specifically, in this embodiment, the processor 901 in the air conditioner loads the executable file corresponding to the process of one or more application programs into the memory 902 according to the following instructions, and the processor 901 runs the application programs stored in the memory 902, so as to implement various functions as follows:
acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in an air conditioner;
calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature;
determining a target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference;
and controlling the outdoor fan to operate according to the target rotating speed.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, embodiments of the present invention provide a storage medium, in which a plurality of instructions are stored, where the instructions can be loaded by a processor to execute steps in any one of the methods for controlling a blower of an air conditioner provided by the embodiments of the present invention. For example, the instructions may perform the steps of:
acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in an air conditioner;
calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature;
determining a target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference;
and controlling the outdoor fan to operate according to the target rotating speed.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the storage medium may execute the steps in any method for controlling a fan of an air conditioner provided in the embodiment of the present invention, the beneficial effects that can be achieved by any method for controlling a fan of an air conditioner provided in the embodiment of the present invention may be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
The method and the device for controlling the fan of the air conditioner and the storage medium of the air conditioner provided by the embodiment of the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A fan control method of an air conditioner is characterized by comprising the following steps:
acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in an air conditioner;
calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature;
determining a target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference;
and controlling the outdoor fan to operate according to the target rotating speed.
2. The fan control method of an air conditioner according to claim 1, wherein the determining a target rotation speed of the outdoor fan according to the rainfall amount, the initial rotation speed, and the variation amount of the indoor and outdoor temperature difference comprises:
comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold, and comparing the rainfall with a preset rainfall threshold;
if the variation of the indoor and outdoor temperature difference is larger than the preset variation threshold and the rainfall is larger than the preset rainfall threshold, determining the target rotating speed of the outdoor fan according to the initial rotating speed and the rainfall;
and if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold and the rainfall is less than or equal to the preset rainfall threshold, determining the target rotating speed of the outdoor fan according to the initial rotating speed and the temperature of the condenser in the air conditioner.
3. The fan control method of an air conditioner according to claim 2, wherein the determining the target rotation speed of the outdoor fan based on the initial rotation speed and the rainfall amount comprises:
calculating a difference value between a preset rainfall standard value and the rainfall, and setting a ratio of the difference value to the preset rainfall standard value as a rotation speed regulation coefficient;
and calculating the product of the rotating speed regulating coefficient and the initial rotating speed to obtain the target rotating speed of the outdoor fan.
4. The fan control method of an air conditioner according to claim 3, wherein before calculating a difference between a preset standard rainfall value and the rainfall, and calculating a rotation speed adjustment coefficient by a ratio between the difference and the preset standard rainfall value, the method comprises:
acquiring weather information of an environment where an air conditioner is located in a first time;
counting precipitation data according to the weather information;
according to the statistical characteristics of the precipitation data, at least one precipitation numerical value in the precipitation data and the frequency corresponding to each precipitation numerical value are counted;
and carrying out weighted average on the precipitation data according to the precipitation numerical values and the frequency corresponding to each precipitation numerical value to obtain a precipitation standard value.
5. The fan control method of an air conditioner according to claim 2, wherein said determining a target rotation speed of the outdoor fan based on the initial rotation speed and a condenser temperature in the air conditioner comprises:
acquiring the temperature of a condenser in an air conditioner;
if the condenser temperature is smaller than or equal to a preset temperature threshold value, acquiring a target rotating speed reduction value corresponding to the condenser temperature according to a preset mapping relation between the temperature and the rotating speed;
and determining the target rotating speed of the outdoor fan according to the initial rotating speed and the target rotating speed reduction value.
6. The fan control method of an air conditioner as claimed in claim 1, wherein after controlling the outdoor fan to operate at the target rotation speed, the method comprises:
acquiring new rainfall, and calculating a change value between the new rainfall and the rainfall;
comparing the change value with a preset change threshold value;
if the change value is larger than or equal to a preset change threshold value, reducing the target rotating speed according to the change value;
and if the change value is smaller than a preset change threshold value, the target rotating speed is increased according to the change value.
7. The fan control method of an air conditioner according to any one of claims 1 to 6, wherein after controlling the outdoor fan to operate at the target rotation speed, the method comprises:
acquiring new rainfall, and comparing the new rainfall with a preset early warning rainfall threshold;
and if the new rainfall reaches the preset early warning rainfall threshold value, controlling the outdoor fan to stop.
8. A blower control device of an air conditioner, characterized in that the initial rotation speed control device of the air conditioner comprises:
the acquisition module is used for acquiring rainfall, indoor temperature, outdoor temperature and initial rotating speed of an outdoor fan in the air conditioner;
a calculation module for calculating an indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature;
the adjusting module is used for determining the target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the variation of the indoor and outdoor temperature difference;
and the control module is used for controlling the outdoor fan to operate according to the target rotating speed.
9. An air conditioner is characterized by comprising a memory and a processor; the memory stores an application program, and the processor is configured to execute the application program in the memory to perform an operation in the fan control method of the air conditioner according to any one of claims 1 to 7.
10. A storage medium storing a plurality of instructions, the instructions being adapted to be loaded by a processor to perform the steps of the fan control method of an air conditioner according to any one of claims 1 to 7.
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