CN113883687B - 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 PDF

Info

Publication number
CN113883687B
CN113883687B CN202111200092.4A CN202111200092A CN113883687B CN 113883687 B CN113883687 B CN 113883687B CN 202111200092 A CN202111200092 A CN 202111200092A CN 113883687 B CN113883687 B CN 113883687B
Authority
CN
China
Prior art keywords
rainfall
preset
air conditioner
outdoor
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111200092.4A
Other languages
Chinese (zh)
Other versions
CN113883687A (en
Inventor
张琴兰
刘湘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL Air Conditioner Zhongshan Co Ltd
Original Assignee
TCL Air Conditioner Zhongshan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TCL Air Conditioner Zhongshan Co Ltd filed Critical TCL Air Conditioner Zhongshan Co Ltd
Priority to CN202111200092.4A priority Critical patent/CN113883687B/en
Publication of CN113883687A publication Critical patent/CN113883687A/en
Application granted granted Critical
Publication of CN113883687B publication Critical patent/CN113883687B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

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 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 change of the indoor and outdoor temperature difference; and controlling the outdoor fan to run according to the target rotating speed. The initial rotating speed of the air conditioner outdoor unit is regulated by correlating the rainfall, the outdoor temperature and the rainfall are comprehensively and accurately controlled, the comfort of the air conditioner is ensured, and the energy consumed by the operation of a fan is reduced so as to achieve the purpose of energy conservation.

Description

Fan control method and device of air conditioner, air conditioner and storage medium
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, reliability and energy conservation of air conditioners are increasingly receiving attention from users, especially in terms of improving protection of air conditioners and reducing energy consumption in rainy days.
The prior air conditioner reduces energy consumption in rainy days, mainly adjusts the initial rotating speed of an air conditioner outdoor unit through the temperature of a condenser, and under the general condition, the higher the temperature of the condenser is, the lower the rotating speed is, but the air conditioner system has hysteresis, namely the temperature of the condenser can not be reduced in time just in rainy days, so that the air conditioner is unfavorable for timely adjusting and controlling the initial rotating speed to achieve the purpose of energy conservation.
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 increased power consumption caused by controlling the rotating speed of an air conditioner outdoor unit only through the temperature of a condenser.
In one aspect, an embodiment of the present invention provides a fan control method for an air conditioner, including:
acquiring 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 change of the indoor and outdoor temperature difference;
and controlling the outdoor fan to run 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-outdoor temperature difference includes:
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;
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 larger than the preset variation threshold and the rainfall is smaller 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 a condenser in the air conditioner.
In some embodiments of the present invention, the determining the target rotational speed of the outdoor fan according to the initial rotational speed and the rainfall includes:
calculating a difference value between a preset rainfall standard value and the rainfall, wherein the ratio of the difference value to the preset rainfall standard value is set as a rotation speed regulating coefficient;
And calculating the product of the rotation speed regulating coefficient and the initial rotation speed to obtain the target rotation speed of the outdoor fan.
In some embodiments of the present invention, before calculating the difference between the preset rainfall standard value and the rainfall, and calculating the rotation speed adjustment coefficient according to the ratio between the difference and the preset rainfall standard value, the method includes:
acquiring weather information of the environment where the air conditioner is located in a first time;
according to the weather information, the precipitation data are counted;
according to the statistical characteristics of the precipitation data, at least one precipitation value in the precipitation data and the frequency corresponding to each precipitation value are counted;
and carrying out weighted average on the precipitation data according to the precipitation values and the frequencies corresponding to the precipitation values to obtain a rainfall standard value.
In some embodiments of the present invention, the determining the target rotational speed of the outdoor fan according to the initial rotational speed and the condenser temperature in the air conditioner includes:
acquiring the temperature of a condenser in the air conditioner;
if the temperature of the condenser is smaller than or equal to a preset temperature threshold value, acquiring a target rotating speed reduction value corresponding to the temperature of the condenser according to a mapping relation between the preset 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 the 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 greater than or equal to a preset change threshold value, the target rotating speed is reduced according to the change value;
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 the rainfall, the indoor temperature, the outdoor temperature, and the initial rotation speed of the outdoor fan in the air conditioner includes:
the method comprises the steps that 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 the 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, controlling the outdoor fan to stop.
In another aspect, an embodiment of the present invention provides a fan control apparatus for an air conditioner, including:
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-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 change of the indoor and outdoor temperature difference;
and the control module is used for controlling the outdoor fan to run 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 storing a plurality of instructions adapted to be loaded by a processor to perform steps in a fan control method of the 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 change of the indoor and outdoor temperature difference; controlling the outdoor fan to run according to the target rotating speed; the initial rotating speed of the air conditioner outdoor unit is regulated by correlating the rainfall, the outdoor temperature and the rainfall are comprehensively and accurately controlled, the comfort of the air conditioner is ensured, and the energy consumed by the operation of a fan is reduced so as to achieve the purpose of energy conservation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a fan control method for an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of an embodiment of a fan control method for controlling a fan to safely operate in an air conditioner according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating an embodiment of determining a target rotational 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 of an embodiment of a rainfall standard value preset in a fan control method of an air conditioner according to the embodiment of the present invention;
FIG. 5 is a flow chart of an embodiment of determining a target rotational speed based on a rainfall in a fan control method of an air conditioner according to an embodiment of the present invention;
FIG. 6 is a flow chart of an embodiment of determining a target rotational speed based on a condenser temperature in a fan control method of an air conditioner according to an embodiment of the present invention;
FIG. 7 is a flowchart of another embodiment of a fan control method of an air conditioner according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of an embodiment of a fan control apparatus for 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 following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the 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 the embodiment of the fan control method for 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 logic sequence is shown in the diagram, in some cases, the steps described or shown may be executed in an execution sequence different from that herein.
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, an air conditioner may be a split type air conditioner, including an indoor unit and an outdoor unit, a control assembly for controlling the indoor unit and the outdoor unit, and a connection assembly for connecting the outdoor unit and the indoor unit, the indoor unit including an indoor fan, and the outdoor unit including 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 rotational speed of an outdoor fan of the air conditioner.
As shown in fig. 1, fig. 1 is a flow chart of an 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 101 to 104:
and 101, acquiring rainfall, indoor temperature, outdoor temperature and initial rotation speed of an indoor fan and an outdoor fan in the air conditioner.
The rainfall can be the instantaneous rainfall in the environment where the outdoor fan of the air conditioner is located; or the average rainfall in the environment where the outdoor fan of the air conditioner is located, for example, the average rainfall in unit time, where the unit time may be 1 second or 1 minute. In some embodiments of the 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 communicatively connected to the air conditioner, for example, one or more terminals of a mobile phone, a smart bracelet, and a background server communicatively connected to the air conditioner.
The indoor temperature may be an indoor temperature preset by a user, for example, a preset cooling temperature; but also the indoor air temperature, such as the 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 obtained; 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 temperature sensor may be used to acquire the indoor air temperature, for example, the temperature sensor disposed at the air outlet of the indoor unit in the air conditioner may be used to acquire the air outlet temperature as the indoor air temperature; the temperature sensor may be configured to acquire the indoor air temperature, or may be configured to receive the indoor air temperature transmitted from a temperature sensor communicatively connected to the air conditioner, for example, the temperature sensor provided in another home appliance.
The initial rotation speed of the indoor and outdoor fans in the air conditioner can be the rotation speed of the outdoor fan corresponding to the indoor temperature preset by a user, and can also be the current rotation 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, by a temperature sensor provided at an outdoor compressor in the air conditioner; the outdoor temperature sent by the terminal in communication with the air conditioner may also be received, for example, by one or more terminals in a cell phone, smart band, and background server in communication with the pickup.
In some embodiments of the present invention, the acquiring the outdoor temperature may be acquiring the outdoor temperature at intervals of a preset period of time. 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.
Step 102, calculating the indoor and outdoor temperature difference between the indoor temperature and the outdoor temperature.
In some embodiments of the present invention, detecting whether the temperature in the inner chamber changes in a preset time period, and if the temperature in the inner chamber does not change in the preset time period, calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature; if the temperature in the inner chamber changes in the preset time period, acquiring a new indoor temperature, and calculating an indoor and outdoor temperature difference between the new indoor temperature and the outdoor temperature.
And step 103, determining the target rotating speed of the outdoor fan according to the rainfall, the initial rotating speed and the change 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 change of the indoor and outdoor temperature in a preset time period.
In some embodiments of the present invention, the indoor temperature and the outdoor temperature are collected once every preset time period, the new indoor temperature is compared with the previous indoor temperature collected before the preset time period, and if the new indoor temperature is equal to the previous indoor temperature, the temperature difference between the new outdoor temperature and the billion outdoor temperature collected before the preset time period is calculated as the variation of the indoor and outdoor temperature difference; 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 is in a refrigerating mode, when rainfall occurs in an outdoor environment, the rainwater splashes onto the fan blades of the outdoor fan, the fan blades are washed, the temperature of the fan blades is reduced, the outdoor temperature is reduced by the rainfall, so that the indoor and outdoor temperature difference is reduced, the rotating speed of the outdoor fan is reduced, the energy consumption of the air conditioner can be reduced while the indoor refrigeration is ensured, and the rotating speed of the fan is reduced more when the rainfall is larger, so that the energy saving of the air conditioner is more beneficial. The rotation speed variation may be a variation value of the rotation speed, including a reduction value of the rotation speed or an increase value of the rotation speed, and 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, by subtracting the reduction value of the rotation speed from the initial rotation speed. The rotation speed variation can also be a variation coefficient, and the target rotation speed of the outdoor fan in the air conditioner is obtained through the product of the variation coefficient and the initial rotation speed.
In some embodiments of the present invention, step 103 may include: comparing the rainfall with a preset rainfall threshold, comparing the variation of the indoor and outdoor temperature difference with the preset variation threshold, and determining the target rotating speed of the outdoor fan in the air conditioner according to the comparison result. Specifically, the rainfall is compared with a preset rainfall threshold, 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 larger than the preset variation threshold and the rainfall is larger than the preset rainfall threshold, the outdoor temperature is reduced due to environmental rainfall, the initial rotating speed of an outdoor fan in the air conditioner is adjusted according to the rainfall, so that the energy consumption of the air conditioner is reduced.
In some embodiments of the present invention, the preset variation threshold is a cooling threshold of the outdoor temperature, the variation of the indoor and outdoor temperature difference is compared with the preset variation threshold, if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold, it is indicated that the outdoor temperature is cooled within the preset time, and the outdoor temperature reduction value reaches the cooling 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 fact that the indoor and outdoor temperatures are not changed or the reduction value of the outdoor temperature is lower than the reduction threshold of the outdoor temperature is indicated in the preset time.
In some embodiments of the present invention, in order to provide refined control for a fan of an air conditioner, when detecting that a variation of an indoor and outdoor temperature difference is less than or equal to a preset variation threshold, comparing the variation of the indoor and outdoor temperature difference with a preset second variation threshold, if the variation of the indoor and outdoor temperature difference is less than the preset second variation threshold, indicating that temperature rising occurs outdoors, calculating a new indoor and outdoor temperature difference between a new outdoor temperature and a new indoor temperature, and increasing a rotational speed of the indoor fan of the air conditioner and an initial rotational speed of the outdoor fan 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 a preset second variation threshold, indicating that the indoor and outdoor temperatures are not changed or the reduction value of the outdoor temperature is lower than the cooling threshold of the outdoor temperature in preset time, not adjusting the initial rotating speed of the outdoor fan in the air conditioner, and continuously monitoring the outdoor temperature and the indoor temperature. The preset second variation threshold is used for indicating the temperature rise condition of the outdoor temperature, and the preset second variation threshold 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 the environment where the air conditioner is located in a historical period, specifically, the method includes steps a1 to a3:
Step a1, obtaining a current preset rainfall threshold value and rainfall data of an environment where the air conditioner is located in a 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 value refers to a rainfall threshold value preset when the air conditioner leaves a factory or is installed.
The historical time period may be one month or three months, or one year, and acquiring rainfall data of the environment where the air conditioner is located in the historical time period may be understood as acquiring rainfall data of the environment where the air conditioner is located in one month, acquiring rainfall data of the environment where the air conditioner is located in three months, and acquiring rainfall data of the environment where the air conditioner is located in one year.
And a2, counting rainfall data to obtain the distribution characteristics of the rainfall data.
Distribution characteristics include, but are not limited to, average rainfall in the rainfall data, maximum rainfall, minimum rainfall, mode of rainfall, median of rainfall, and variance of rainfall.
And a 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, correcting 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 characteristics are larger than or equal to the current preset rainfall threshold, not adjusting the current preset rainfall threshold, and taking the current preset rainfall threshold as the preset rainfall threshold; and if the distribution characteristics are smaller than the current preset rainfall threshold, taking the distribution characteristics as the preset rainfall threshold. For example, when the distribution characteristic is an average rainfall, comparing the average rainfall with a current preset rainfall threshold; if the average rainfall is greater than or equal to the current preset rainfall threshold, not adjusting the current preset rainfall threshold, and taking the current preset rainfall threshold 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 foregoing update manner of the preset rainfall threshold is only exemplary, and the setting manner and the update 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 so on.
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 difference, and the target rotation speed of the outdoor fan in the air conditioner can be calculated according to the rainfall, the initial rotation speed and the variation of the indoor and outdoor temperature difference through a preset rotation speed calculation model. 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, for example, a preset mixed integer programming model or a mathematical fitting model, etc.
In some embodiments of the present invention, determining the target rotational speed of the outdoor fan in the air conditioner according to the amount of rainfall, the initial rotational speed, and the amount of change in the indoor-outdoor temperature difference may include: comparing the rainfall with a preset rainfall threshold, comparing the variation of the indoor and outdoor temperature difference with the preset variation 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, 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 carrying out addition operation on the initial rotating speed and the target rotating speed variation value of the outdoor fan to obtain a target rotating speed corresponding to the rainfall.
In some embodiments of the present invention, determining the target rotational speed of the outdoor fan in the air conditioner according to the rainfall, the initial rotational speed, and the variation of the indoor-outdoor temperature difference may further include: comparing the rainfall with a preset rainfall threshold, comparing the variation of the indoor and outdoor temperature difference with the preset variation threshold, and 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, 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.
In some embodiments of the present invention, if the variation of the indoor and outdoor temperature difference is greater than the preset variation threshold, the rainfall is less than or equal to the preset rainfall threshold, which indicates that the outdoor temperature is reduced, but no rainfall or less rainfall occurs, in order to reduce the power consumption of the air conditioner and provide fine fan control, the initial rotation speed of the outdoor fan is adjusted according to the indoor and outdoor temperature difference 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 value, and if the indoor and outdoor temperature difference is smaller than or equal to the preset indoor and outdoor temperature difference threshold value, reducing the initial rotating speed of the outdoor fan according to the indoor and outdoor temperature difference; if the indoor and outdoor temperature difference is larger 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 through a 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 condition of [5 ℃,10 ℃ and the like, 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 0 ℃ and 5 ℃, the corresponding target wind speed reduction value is 10, namely the initial rotation speed of the outdoor fan is reduced by 10. It should be noted that, the foregoing mapping relationship between the preset temperature difference and the rotation speed is merely illustrative, and the mapping relationship between the preset temperature difference and the rotation speed, the indoor and outdoor temperature differences, and the corresponding target wind speed reduction values are not limited in the embodiment of the present invention.
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 outdoor fan control and improve the user experience, after step 104, the new rainfall is monitored in real time, and whether the new rainfall is less than or equal to a preset rainfall threshold is determined, if the new rainfall is less than or equal to the preset rainfall threshold, the temperature of a condenser in the air conditioner is obtained, and the rotation speed of the outdoor fan is adjusted according to the temperature of the condenser, specifically, the method includes steps b1 to b6:
And b1, acquiring new rainfall, and comparing the new rainfall with a preset rainfall threshold.
And b2, if the new rainfall is smaller than or equal to the preset rainfall threshold, acquiring the temperature of a condenser in the air conditioner.
And b3, comparing the temperature of a condenser in the air conditioner with a preset temperature threshold.
And b4, if the temperature of the condenser in the air conditioner is smaller than or equal to a preset temperature threshold value, inquiring a mapping relation between the preset temperature and the rotating speed to obtain a second target rotating speed corresponding to the temperature of the condenser.
The mapping relationship between the preset temperature and the rotation speed is used for indicating the corresponding relationship between the condenser temperature and the rotation speed of the outdoor fan, for example, as shown in table one, which is one illustration of the mapping relationship between the preset temperature and the rotation speed provided by the embodiment of the invention, in the mapping relationship between the preset temperature and the rotation speed, when the condenser temperature meets the condition that the condenser temperature is less 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 is less than or equal to A2 ℃ and less than or equal to the temperature of the condenser and is less than A3 ℃, the corresponding rotating speed of the outdoor fan is the rotating speed of the second fan; when the temperature of the condenser is less than or equal to A3 ℃ and less than or equal to a preset temperature threshold, the corresponding rotating speed of the outdoor fan is the rotating speed of the third fan. Wherein A1, A2, A3 satisfy A1< A2< A3< 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 speed, the second fan speed, and the third fan speed may be set according to performance of the air conditioner, for example, when a damper 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 speed may be a fan speed corresponding to the low wind gear, the second fan speed may be a fan speed corresponding to the medium wind gear, and the third fan speed may be a fan speed corresponding to the medium wind gear. In some embodiments of the present invention, the preset mapping relationship between the temperature and the rotation speed may be determined through experiments.
A preset mapping relation between temperature and rotating speed is shown
Condenser temperature Outdoor fan rotating speed
A1 ℃ is less than or equal to the temperature of the condenser<A2℃ First fan rotational speed
A2 ℃ is less than or equal to the temperature of the condenser<A3℃ Second fan rotational speed
The temperature of the condenser is less than or equal to A3 ℃ and less than or equal to a preset temperature threshold value Third fan rotational speed
It should be noted that, the mapping relationship between the preset temperature and the rotation speed shown in the table one is only illustrative, and the embodiment of the invention does not limit the numerical value of the condenser temperature, the rotation speed of the outdoor fan and the mapping relationship between the temperature and the rotation speed, and can adjust the mapping relationship between the preset temperature and the rotation speed according to the actual application scenario of the air conditioner and the performance parameter of the air conditioner.
And b5, if the temperature of the condenser in the air conditioner is greater than a 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, calculating a third target rotation speed corresponding to the new rainfall according to the new rainfall through a preset rotation speed calculation model, and adjusting the rotation speed of the outdoor fan according to the third target rotation speed.
According to the embodiment of the invention, the initial rotating speed of the air conditioner outdoor unit is regulated by correlating the rainfall, the outdoor temperature and the rainfall are comprehensively and accurately controlled, the comfort of the air conditioner is ensured, and the energy consumed by the operation of the fan is reduced, so that the purpose of saving energy is achieved.
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 to obtain a rainfall is determined according to the placement position, specifically, the method includes steps c1 to c4:
step 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 set 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 set position is an outdoor position, which indicates that rainwater may splash onto a fan blade of an outdoor fan of an air conditioner, the rainfall, the indoor temperature, the initial rotational speed, and the outdoor temperature are obtained.
And c4, if the set position is not the outdoor 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 set position is not an outdoor position, it is indicated that rainwater will not splash onto a fan blade of an outdoor fan in an air conditioner, the rotational speed of the outdoor fan is adjusted according to the indoor temperature and the outdoor temperature and according to the indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature, regardless of the rainfall, specifically, if the set position is not an outdoor position, the change amount of the indoor-outdoor temperature difference compares the outdoor temperature difference with a preset outdoor temperature difference; if the outdoor temperature difference is smaller 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 in step 103, and is not described herein.
In some embodiments of the present invention, if the set position is not an outdoor position, the fan speed of the air conditioner may be adjusted according to the outdoor temperature difference, and if the set position is not an outdoor position, the outdoor temperature difference is compared with a preset outdoor temperature difference; if the outdoor temperature difference is larger than the preset outdoor temperature difference, acquiring the temperature of a condenser of the air conditioner, and adjusting the rotating speed of the outdoor fan according to the temperature of the condenser. The method for adjusting the rotation speed of the outdoor fan according to the temperature of the condenser is similar to the method for adjusting the rotation speed of the outdoor fan according to the temperature of the condenser in steps b3 and b4, and will not be repeated here.
In some embodiments of the present invention, in order to ensure the normal operation of the air conditioner in a rainy day, 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 outdoor fan is controlled to stop, so that the air conditioner does not refrigerate any more. The pre-set early warning rainfall refers to a safe rainfall limit value of the air conditioner, when the rainfall in the environment reaches the safe rainfall limit value, the air conditioner outdoor fan can not timely discharge water splashed onto the blades, the operation of the air conditioner is affected, and the service life of the air conditioner is reduced. 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 a method for controlling a fan to safely operate in a fan control method of an air conditioner according to an embodiment of the present invention, where the method for controlling the fan to safely operate includes steps 201 to 202:
Step 201, obtaining new rainfall, and comparing the new rainfall with a preset early warning rainfall threshold.
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, the new rainfall is determined to reach the preset early warning rainfall threshold, and if the new rainfall is less than the preset early warning rainfall threshold, the new rainfall is determined to not reach the preset early warning rainfall threshold.
And 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 a preset early warning rainfall threshold, then the rainfall early warning information is sent 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, compares 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, controls the outdoor fan to stop, controls the outdoor compressor to stop, and if the water level is less than the preset early warning water level, controls the outdoor fan to operate according to the preset minimum rotation speed, and controls the outdoor compressor to operate according to the preset minimum frequency.
In some embodiments of the present invention, if the new rainfall does not reach the preset early warning rainfall threshold, controlling the air conditioner to adjust the rotation speed of the outdoor fan according to the condenser temperature, specifically, the method includes steps d1 to d3:
and d1, judging whether the new rainfall is smaller than or equal to a preset rainfall threshold.
In some embodiments of the present invention, the new rainfall is compared to 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 smaller than or equal to the preset rainfall threshold, calculating a temperature change value of a 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 rotational speed.
In some embodiments of the present invention, if the new rainfall is less than or equal to the preset rainfall threshold, it is indicated that the new rainfall is reduced and is lower than the preset rainfall threshold, and adjusting the rotation speed of the outdoor fan in the air conditioner according to the rainfall may reduce the accuracy of the rotation speed of the fan, so that the rotation speed of the outdoor fan is adjusted by detecting the temperature change value of the condenser in the air conditioner and 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 by the method for obtaining 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 invention, step d3 comprises: 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, and 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 the current indoor and outdoor temperature difference between the new indoor temperature and the new outdoor temperature, and increasing the target rotating speed according to the condenser temperature change value and the current indoor and outdoor temperature difference; if the temperature change value of the condenser is smaller than the second preset temperature change value and is larger than or equal to the preset temperature change value, the outdoor fan of the air conditioner is controlled to continue to operate according to the target rotating speed. Wherein 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, calculating a current indoor and outdoor temperature difference between the new indoor temperature and the new outdoor temperature, and adjusting the target rotation speed according to the condenser temperature change value and the current indoor and outdoor temperature difference may be comparing the current indoor and outdoor temperature difference with a preset indoor and outdoor temperature difference threshold; if the current indoor and outdoor temperature difference is smaller than or equal to the preset indoor and outdoor temperature difference threshold value, the indoor and outdoor temperature difference is smaller, and the outdoor fan of the air conditioner is controlled to continue to operate according to the target rotating speed; if the current indoor and outdoor temperature difference is larger than the preset indoor and outdoor temperature difference threshold value, which means that the indoor and outdoor temperature difference is larger, the rotating speed of the outdoor fan needs to be increased to ensure indoor refrigerating capacity and improve user comfort, a mapping relation between the preset temperature and the rotating speed is inquired, a 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 inquiring the preset mapping relation 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 the step b4, and will not be repeated here.
In some embodiments of the present invention, the 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 change 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; if the current indoor and outdoor temperature difference is smaller than or equal to the preset indoor and outdoor temperature difference threshold value, the fact that the indoor and outdoor temperature difference is smaller is indicated, a mapping relation between the preset temperature and the rotating speed is inquired, a 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 inquiring the preset mapping relation 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 the step b4, and is not repeated here; and if the current indoor and outdoor temperature difference is larger than the preset indoor and outdoor temperature difference threshold, 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.
According to the embodiment of the invention, after the outdoor fan is controlled to run according to the target rotating speed, the new rainfall in the environment where the outdoor fan 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 is not refrigerated any more, and the normal running of the air conditioner in rainy days is ensured and the service life of the air conditioner is prolonged in the new rainfall; the method has the advantages that the preset early warning rainfall is not reached, the air conditioner is controlled to adjust the rotating speed of the outdoor fan according to the temperature of the condenser, the rotating speed adjusting method based on the rainfall is combined with the rotating speed adjusting method based on the temperature of the condenser, and the flexibility and the applicability of the fan control method of the air conditioner are improved; and when the rainfall is lower than a preset rainfall threshold, a rotating speed adjusting method based on the temperature of the condenser is increased, and the accuracy of the rotating speed of the fan is improved.
In some embodiments of the present invention, in order to improve fan refinement control of an air conditioner, a variation of an indoor temperature difference and an outdoor temperature difference is compared with a preset variation threshold, a rainfall is compared with a preset rainfall threshold, and a target rotation speed of an outdoor fan is determined according to a comparison result, specifically, as shown in fig. 3, fig. 3 is a schematic flow chart of an embodiment of determining the target rotation speed in a fan control method of the air conditioner provided by the embodiment of the present invention, where the method for determining the target rotation speed includes steps 301 to 303:
Step 301, comparing the variation of the indoor and outdoor temperature difference with a preset variation threshold, and comparing the rainfall with a preset rainfall threshold.
Step 302, 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, determining the target rotation speed of the outdoor fan according to the initial rotation speed and the rainfall.
In some embodiments of the present invention, if the variation of the indoor and outdoor temperature difference is greater than a preset variation threshold and the rainfall is greater than a preset rainfall threshold, a preset rainfall standard value is obtained, and a target rotation speed of the outdoor fan is calculated according to a difference between the preset rainfall standard value and the rainfall. The preset rainfall standard value refers to a rainfall threshold value of an environment where the air conditioner is located, in some embodiments of the present invention, the rainfall threshold value may be determined according to a historical rainfall condition of the environment where the air conditioner is located, specifically, as shown in fig. 4, fig. 4 is a schematic flow diagram of an embodiment of the preset rainfall standard value in the fan control method of the air conditioner provided by the embodiment of the present invention, where the method of the preset rainfall standard value includes steps 401 to 404:
step 401, obtaining weather information of an environment where an air conditioner is located in a first time.
The environment where the air conditioner is located may 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 a past month, a past three months, a past six months, and a past year. In some embodiments of the present invention, the acquiring weather information of the environment in which the air conditioner is located in the first time may be acquiring weather information of the environment in which the air conditioner is located in the past month, acquiring weather information of the environment in which the air conditioner is located in the past three months, acquiring weather information of the environment in which the air conditioner is located in the past six months, and acquiring 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, wherein the normal weather includes sunny days, cloudy days and cloudy days, and the normal weather information includes days and temperatures corresponding to each normal weather; abnormal weather includes, but is not limited to, rainy days, snowy days, haze days, and hail days, and abnormal weather information includes days corresponding to various abnormal weather, rainfall information of rainy days, snowy snowfall information of snowy days, visibility of haze days, haze concentration, and the like. The rainfall information of the rainy days comprises the days of the rainy days, the rainfall duration of the rainy days, the maximum rainfall and the average rainfall of the whole days, and the snowy rainfall information of the snowy days comprises the days of the snowy days, the snowy duration of the snowy days, the maximum rainfall and the temperature.
In some embodiments of the present invention, weather information of an environment in which an air conditioner is located in a first time may be obtained through a terminal communicatively connected to the air conditioner.
And step 402, calculating precipitation data according to weather information.
Precipitation data refers to precipitation per rainfall, duration of rainfall, average precipitation per rainfall, maximum precipitation, and minimum precipitation for a region over a first time period.
In some embodiments of the present invention, the rainfall data of each rainfall of the environment in which the air conditioner is located in the first time may be counted according to the number of days in the rainy day, the rainfall duration in the rainy day, the maximum rainfall and the average rainfall throughout the day.
Step 403, counting at least one precipitation value and the frequency corresponding to each precipitation value in the precipitation data according to the statistical characteristics of the precipitation data.
The statistical characteristic includes at least one of a mean, a maximum, a minimum, a median, a mode, a variance, and a standard deviation.
In some embodiments of the present invention, at least one precipitation value in the precipitation data and the frequency corresponding to each precipitation value are counted, so that the daily average precipitation of the environment where the air conditioner is located in the first time and the occurrence number of each daily average precipitation in the first time can be counted. For example, the environment where the air conditioner is located is counted to generate 12 times of precipitation within one month, and the daily average precipitation amount of each precipitation is respectively: m1, M2, M3, M4, M1, M2, M1 and M3, the number of times of daily average precipitation of M1, the number of times of daily average precipitation of M2, the number of times of daily average precipitation of M3 and the number of times of daily average precipitation of M4 in one month are counted as 6, the number of times of daily average precipitation of M2 is counted as 2, and the number of times of daily average precipitation of M4 is counted as 1.
And step 404, carrying out weighted average on the precipitation data according to the precipitation values and the frequencies corresponding to the precipitation values to obtain a rainfall standard value.
In some embodiments of the present invention, step 404 includes: 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 amount value corresponding to each frequency and the corresponding weight, and accumulating each product to obtain a rainfall standard value. For example, when 12 times of precipitation occurs in an environment where the air conditioner is located in one month, the statistics result in that the number of times of daily average precipitation of 50 mm in one month is 6, the number of times of daily average precipitation of 30 mm is 2, the number of times of daily average precipitation of 70 mm is 3, and the number of times of daily average precipitation of 138 mm is 1, and the precipitation data is weighted and averaged according to the precipitation values and the frequencies corresponding to the precipitation values, so that the rainfall standard value is 59 mm.
In some embodiments of the present invention, a rainfall standard value may be set according to at least one of an average value, a maximum value, a minimum value, a median, a mode, a variance, and a standard deviation of the precipitation data, for example, the maximum value of the precipitation in the first time when the air conditioner is located is set as the rainfall standard value; the mode of the precipitation of the environment where the air conditioner is located in the first time can be set as a rainfall standard value; the median of the precipitation of the environment where the air conditioner is located in the first time can be set as a rainfall standard value; the difference between the maximum value and the minimum value of the precipitation amount of the environment where the air conditioner is located in the first time can be used as a rainfall standard value.
In some embodiments of the present invention, the precipitation amount, the duration of the precipitation, the average precipitation amount, the maximum precipitation amount, and the minimum precipitation amount of each rainfall in the first time may be counted, the maximum precipitation amount, the minimum precipitation amount, the mode of the precipitation amount, and the median of the precipitation amounts in the first time may be counted, the average precipitation amount in the first time may be calculated according to the precipitation amount of each rainfall and the number of times of the precipitation, and the precipitation amount variance and the precipitation amount standard deviation may be obtained according to the average precipitation amount.
According to the embodiment of the invention, the rainfall standard value is set according to 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 a rainfall standard value presetting method in the air conditioner is improved, and the applicability of a fan control method of the air conditioner is improved.
As shown in fig. 5, fig. 5 is a flowchart 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 the target rotation speed based on the rainfall includes steps 501 to 502:
step 501, calculating a difference value between a preset rainfall standard value and rainfall, and setting a ratio between the difference value and the preset rainfall standard value as a rotation speed adjusting coefficient.
The rotation speed regulating coefficient is used for quantifying the regulating quantity of the rainfall corresponding to the rotation speed of the outdoor fan.
In some embodiments of the present invention, in order to calculate an adjustment amount of a rotational speed of an outdoor fan corresponding to a rainfall, by collecting rainfall data of an environment in which the 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 the 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 between each rainfall and the preset rainfall standard value, obtaining a preset target power consumption corresponding to each rainfall according to the adjustment parameter and the difference and the preset power consumption, counting an actual power consumption of the air conditioner corresponding to each rainfall, minimizing the difference between the actual power consumption and the preset target power consumption as a target function, and performing data fitting on the rainfall data according to the operation parameter of the air conditioner according to the target function, and establishing a rotational speed adjustment model [ ((R-Y)/R) - α ] of the outdoor fan, wherein R represents the preset rainfall standard value, and α represents each rainfall, and α represents an adjustment parameter, in some embodiments of the present invention 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 the preset rainfall standard value, and the preset target power consumption refers to the lowest power consumption corresponding to each rainfall. In some embodiments of the present invention, the obtaining the preset power consumption of the air conditioner corresponding to the preset rainfall standard value may be obtaining the preset power consumption of the air conditioner corresponding to the preset rainfall standard value through a mapping relationship between the preset rainfall standard value and the power consumption, where the mapping relationship between the preset rainfall standard value and the power consumption is used to indicate a corresponding relationship between the rainfall standard value and the power consumption of the corresponding air conditioner.
In some embodiments of the present invention, the obtaining 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 the difference value between the difference value and the preset rainfall standard value is made with 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 value R-Y between a preset rainfall standard value R and a rainfall Y is calculated, and a rotation speed adjustment coefficient is calculated by a ratio (R-Y)/R between the difference value (R-Y) and the preset rainfall standard value R. In order to facilitate adjustment and improvement of universality, after the ratio (R-Y)/R between the difference (R-Y) and a preset rainfall standard value R, calculating the difference between the ratio (R-Y)/R and an adjustment parameter alpha to obtain a rotation speed adjustment coefficient.
In some embodiments of the present invention, the rotation speed adjustment coefficient is calculated through 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, the rotation speed of the outdoor fan of the air conditioner is gradually reduced along with the increase of the rainfall, a preset rainfall standard value is compared with the rainfall, and the rotation speed adjustment model of the outdoor fan is adjusted according to the comparison result. Specifically, judging whether the difference between a preset rainfall standard value and rainfall is greater than or equal to 0; if the difference between the preset rainfall standard value and the rainfall is greater than or equal to 0, calculating a rotation speed regulating coefficient through [ ((R-Y)/R) +alpha ]; if the difference between the preset rainfall standard value and the rainfall is smaller than 0, the rotating speed regulating coefficient is calculated through [ ((R-Y)/R) -alpha ].
And step 502, calculating the product of the rotation speed adjustment coefficient and the initial rotation speed to obtain the target rotation speed of the outdoor fan.
In some embodiments of the present invention, a product of the rotational speed adjustment coefficient [ ((R-Y)/R) - α ] and the initial rotational speed F [ ((R-Y)/R) - α ] F is calculated to obtain the target rotational speed F of the outdoor fan.
And 303, 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, a target rotation speed reduction value corresponding to a condenser temperature may be obtained according to a preset mapping relationship between temperature and rotation speed, specifically, as shown in fig. 6, fig. 6 is a schematic flow chart of an embodiment of determining a target rotation speed based on the condenser temperature in the fan control method of an air conditioner according to the embodiment of the present invention, where the method for determining the target rotation speed based on the condenser temperature includes steps 601 to 603:
step 601, obtaining a condenser temperature in an air conditioner.
In some embodiments of the present invention, 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 the preset rainfall threshold, the difference between the calculated target rotation speed and the initial rotation speed is small due to the small difference between the rainfall and the preset rainfall standard value, which is not good for energy saving of the air conditioner, so when the rainfall is less than or equal to the preset rainfall threshold, the air conditioner is controlled to execute the method of determining the target rotation speed based on the condenser temperature, the condenser temperature in the air conditioner is obtained, and the condenser temperature is compared with the preset temperature threshold. Wherein the condenser temperature may be the condenser surface temperature or the condenser exit flow path temperature.
Step 602, if the condenser temperature is less than or equal to the preset temperature threshold, obtaining a target rotation speed reduction value corresponding to the condenser temperature according to a mapping relationship between the preset temperature and the rotation speed.
The mapping relation between the preset temperature and the rotating speed is used for indicating the corresponding relation between the condenser temperature and the rotating speed reduction value, and as shown in a second table, the second table is another illustration of the mapping relation between the preset temperature and the rotating speed provided by the embodiment of the invention, and in the mapping relation between the preset temperature and the rotating speed, when the condenser temperature meets A1 ℃ to less than or equal to the condenser temperature < A2 ℃, the corresponding target rotating speed reduction value is the first rotating speed reduction value; when the temperature of the condenser meets A2 ℃ to less than or equal to the temperature of the condenser and is less than A3 ℃, the corresponding target rotation speed reduction value is a second rotation speed reduction value; when the temperature of the condenser is less than or equal to A3 ℃ and less than or equal to a preset temperature threshold, the corresponding target rotating speed reduction value is a third rotating speed reduction value. Wherein A1, A2, A3 satisfies A1< A2< A3< preset temperature threshold, and the first rotational speed reduction value < the second rotational speed reduction value < the third rotational speed reduction value, in some embodiments of the present invention, the first rotational speed reduction value, the second rotational speed reduction value, and the third rotational speed reduction value may be set according to 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 querying the preset mapping relationship between the temperature and the rotation speed in the step b4 to obtain the second target rotation speed corresponding to the condenser temperature, which is not described herein again.
Mapping relation between preset temperature and rotating speed
Condenser temperature Rotational speed reduction value
A1 ℃ is less than or equal to the temperature of the condenser<A2℃ First rotation speed reduction value
A2 ℃ is less than or equal to the temperature of the condenser<A3℃ Second rotation speed reduction value
The temperature of the condenser is less than or equal to A3 ℃ and less than or equal to a preset temperature threshold value Second rotation speed reduction value
It should be noted that, the mapping relationship between the preset temperature and the rotation speed shown in the second table is only illustrative, and the embodiment of the invention does not limit the numerical value of the condenser temperature, the rotation speed reduction value of the outdoor fan and the mapping relationship between the temperature and the rotation speed, and can adjust the mapping relationship between the preset temperature and the rotation speed according to the actual application scenario of the air conditioner and the performance of the air conditioner.
And 603, 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 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 a preset temperature threshold, the outdoor fan of the air conditioner is controlled to operate at an initial rotational speed.
In some embodiments of the present invention, in order to increase applicability of a fan control method of an air conditioner and increase comfort of indoor users, when detecting that a condenser temperature is greater than a preset temperature threshold, determining a target rotational speed increase value corresponding to the condenser temperature according to the condenser temperature, specifically including steps e 1-e 2:
And e1, if the temperature of the condenser is larger than a preset temperature threshold value, acquiring a target rotating speed increasing value corresponding to the temperature of the condenser according to a mapping relation between the preset temperature and the rotating speed increasing value.
The mapping relation between the preset temperature and the rotation speed increasing value is used for indicating the corresponding relation between the condenser temperature and the rotation speed increasing value of the outdoor fan, for example, when the condenser temperature meets a preset temperature threshold value < the condenser temperature < A4 ℃, the corresponding target rotation speed increasing value is 0; when the temperature of the condenser meets A4 ℃ to less than or equal to the temperature of the condenser and is less than A5 ℃, the corresponding target rotating speed increasing value is a first rotating speed increasing value; when the temperature of the condenser meets A5 ℃ and is less than or equal to the temperature of the condenser, the corresponding target rotating speed increasing value is the second rotating speed increasing value. Wherein A4, A5 satisfies A5> A4> preset temperature threshold, and 0< first rotational speed increase value < second rotational speed increase value.
And e2, adding a target rotating speed increasing value to the initial rotating speed to obtain the target rotating speed of the outdoor fan.
According to the embodiment of the invention, the rotational speed adjusting method based on rainfall is combined with the rotational speed adjusting method based on condenser temperature, so that the flexibility and applicability of the fan control method of the air conditioner are improved; and when the rainfall is lower than a preset rainfall threshold, a rotating speed adjusting method based on the temperature of the condenser is increased, 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 rainfall is obtained, a change value between the new rainfall and the rainfall is calculated, and the rotation speed of the outdoor fan of the air conditioner is adjusted according to the change value. For example, the rainfall change condition may be determined by the change value, the rotation speed of the outdoor fan may be adjusted according to the rainfall change condition, for example, when the rainfall is increased, the target rotation speed is reduced, when the rainfall is unchanged, the operation is continued according to the target rotation speed, and when the rainfall is reduced, the target rotation speed is increased. Specifically, as shown in fig. 7, fig. 7 is a flowchart 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:
step 701, obtaining new rainfall, and calculating a new rainfall and a change value between rainfall.
The change value is used for indicating rainfall change, and illustratively, the new rainfall is subtracted from the new rainfall to obtain a change value between the new rainfall and the rainfall, when the change value is greater than 0, the rainfall is indicated to be increased, when the change value is equal to 0, the rainfall is indicated to be unchanged, and when the change value is less than 0, the rainfall is indicated to be reduced.
In some embodiments of the present invention, a new rainfall is obtained, and whether the new rainfall is greater than a preset rainfall threshold is determined; if the new rainfall is larger than the preset rainfall threshold, calculating a change value between the new rainfall and the rainfall; if the new rainfall is smaller than or equal to the preset rainfall threshold, executing the steps b 1-b 6 to obtain the condenser temperature in the air conditioner, and adjusting the target rotating speed of the outdoor fan according to the condenser temperature.
Step 702, comparing the variation value with a preset variation threshold.
In some embodiments of the present invention, the preset change threshold may be 0.
In step 703, if the variation value is greater than or equal to the preset variation threshold, the target rotation speed is reduced according to the variation value.
In some embodiments of the present invention, if the change value is greater than or equal to the preset change threshold, indicating that the rainfall is increased or unchanged, calculating a rotation speed reduction value according to the change value, and adjusting the target rotation speed by subtracting the rotation speed reduction value from the target rotation speed.
In some embodiments of the present invention, the rotation speed reduction value calculated according to the variation value may be a ratio Δy/R of the calculated variation value Δy to a preset rainfall standard value R, a product (Δy/R) of the ratio Δy/R and the initial rotation speed F is calculated, the product (Δy/R) is taken as the rotation speed reduction value Δf, and the target rotation speed is adjusted by subtracting the rotation speed reduction value Δf from the target rotation speed F. For example, when the variation value is 0, i.e. the rainfall is unchanged, the rotation speed reduction value is 0 through Δf= (Δy/R) x F, i.e. 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 according to the target rotation speed.
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 change value is smaller than the preset change threshold, indicating that the rainfall is reduced, calculating a rotation speed increasing value according to the change value, and adjusting the target rotation speed by adding the rotation speed increasing 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 change value is similar to the method for calculating the rotation speed decreasing value according to the change value in step 703, and will not be described herein.
According to the embodiment of the invention, the new rainfall is obtained, the new rainfall and the change value between the rainfall are calculated, the rotating speed of the outdoor fan of the air conditioner is adjusted according to the change value, and the rotating speed of the outdoor fan is adjusted in real time according to the change condition of the rainfall, so that the energy consumption of the air conditioner is further reduced.
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 diagram of an embodiment of the fan control device of the air conditioner provided by the embodiment of the present invention, where the fan control device of the air conditioner includes:
An acquisition module 801, configured to acquire a rainfall, an indoor temperature, an outdoor temperature, and an initial rotation speed of an outdoor fan in the air conditioner;
a calculating module 802 for calculating an indoor-outdoor temperature difference between the indoor temperature and the outdoor temperature;
an adjusting module 803, configured to determine a target rotational speed of the outdoor fan according to the rainfall, the initial rotational speed, and the variation of the indoor-outdoor temperature difference;
and the control module 804 is used for controlling the outdoor fan to run according to the target rotating speed.
In some embodiments of the present invention, the adjustment module 803 includes:
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 the target rotating speed of the outdoor fan according to the initial rotating speed and the rainfall if the change amount of the indoor and outdoor temperature difference is larger than the preset change amount threshold value and the rainfall is larger than the preset rainfall threshold value;
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 a condenser in the air conditioner if the change amount of the indoor and outdoor temperature difference is larger than the preset change amount 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:
a coefficient calculating subunit, configured to calculate a difference between a preset rainfall standard value and the rainfall, and set a ratio between the difference and the preset rainfall standard value as a rotation speed adjustment 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 weather information of the environment where the air conditioner is located in a first time;
according to the statistical characteristics of the precipitation data, at least one precipitation value in the precipitation data and the frequency corresponding to each precipitation value are counted;
and carrying out weighted average on the precipitation data according to the precipitation values and the frequencies corresponding to the precipitation values to obtain a rainfall standard value.
In some embodiments of the invention, the temperature-based conditioning unit comprises:
the acquisition subunit is used for acquiring the temperature of a condenser in the air conditioner;
the temperature judging subunit is used for acquiring a target rotating speed reduction value corresponding to the condenser temperature according to a mapping relation between the preset temperature and the rotating speed if the condenser temperature is smaller than or equal to a preset temperature threshold value;
And the temperature-based 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 fan control apparatus of an air conditioner further includes:
the rainfall monitoring module 805 is configured to obtain a new rainfall, and calculate 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 greater than or equal to a preset change threshold value, the target rotating speed is reduced according to the change value; 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 fan control apparatus of an air conditioner further includes:
the rotation speed adjusting module 806 is 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, controlling the outdoor fan to stop.
According to the embodiment of the invention, the initial rotating speed of the air conditioner outdoor unit is regulated by correlating the rainfall, the outdoor temperature and the rainfall are comprehensively and accurately controlled, the comfort of the air conditioner is ensured, and the energy consumed by the operation of the fan is reduced, so that the purpose of saving energy is achieved.
The embodiment of the invention also 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 invention, specifically:
the air conditioner may include one or more processing cores 'processors 901, one or more computer-readable storage media's memory 902, a power supply 903, and an input unit 904, among other components. It will be appreciated by those skilled in the art that the air conditioner configuration shown in fig. 9 is not limiting of the air conditioner and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components. Wherein:
the processor 901 is a control center of the air conditioner, and connects various parts of the entire air conditioner 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 and a modem processor, wherein the application processor primarily handles operating systems, user interfaces, applications, etc., and the modem processor primarily 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 performs various functional applications and data processing by executing the software programs and modules stored in the memory 902. The memory 902 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data created according to the use of the air conditioner, etc. In addition, 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 access to the memory 902 by the processor 901.
The air conditioner further includes a power supply 903 for supplying power to the respective components, and preferably, the power supply 903 may be logically connected to the processor 901 through a power management system, so that functions of managing charge, discharge, power consumption management, etc. are implemented through the power management system. The power supply 903 may also include one or more of any components, such as a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
The air conditioner may further include an input unit 904, and the input unit 904 may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
Although not shown, the air conditioner may further include a display unit or the like, which is not described herein. In particular, in this embodiment, the processor 901 in the air conditioner loads executable files corresponding to the processes of one or more application programs into the memory 902 according to the following instructions, and the processor 901 executes 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 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 change of the indoor and outdoor temperature difference;
and controlling the outdoor fan to run according to the target rotating speed.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the various methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in a computer-readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present invention provides a storage medium having stored therein a plurality of instructions that can be loaded by a processor to perform the steps in any one of the fan control methods of an air conditioner provided in the embodiment 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 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 change of the indoor and outdoor temperature difference;
and controlling the outdoor fan to run according to the target rotating speed.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
Wherein the storage medium may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like.
The steps in the fan control method of any air conditioner provided by the embodiment of the present invention can be executed due to the instructions stored in the storage medium, so that the beneficial effects that can be achieved by the fan control method of any air conditioner provided by the embodiment of the present invention can be achieved, and detailed descriptions of the previous embodiments are omitted herein.
The above description is made in detail of a method and a device for controlling a fan of an air conditioner, and a storage medium of the air conditioner, which are provided by the embodiments of the present invention, and specific examples are applied to illustrate the principles and embodiments of the present invention, and the above description of the embodiments is only for helping to understand the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.

Claims (9)

1. A fan control method of an air conditioner, the method comprising:
acquiring 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 change of the indoor and outdoor temperature difference;
controlling the outdoor fan to run according to the target rotating speed;
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 difference comprises the following steps:
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;
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 that the outdoor temperature reduction is caused by environmental rainfall, determining a rotation speed regulating coefficient according to the rainfall and a preset rainfall standard value, and determining a target rotation speed of the outdoor fan according to the rotation speed regulating coefficient and the initial rotation speed;
and 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, determining that the outdoor temperature reduction is not caused by environmental rainfall, and determining the target rotating speed of the outdoor fan according to the initial rotating speed and the temperature of a condenser in the air conditioner.
2. The fan control method of an air conditioner as claimed in claim 1, wherein the determining a rotation speed adjustment coefficient according to the rainfall and a preset rainfall standard value, and determining a target rotation speed of the outdoor fan according to the rotation speed adjustment coefficient and the initial rotation speed, comprises:
Calculating a difference value between a preset rainfall standard value and the rainfall, and setting a ratio between the difference value and the preset rainfall standard value as a rotation speed regulating coefficient;
and calculating the product of the rotation speed regulating coefficient and the initial rotation speed to obtain the target rotation speed of the outdoor fan.
3. The fan control method of an air conditioner according to claim 2, wherein before calculating a difference between a preset rainfall standard value and the rainfall, and calculating a rotation speed adjustment coefficient from a ratio between the difference and the preset rainfall standard value, the method includes:
acquiring weather information of the environment where the air conditioner is located in a first time;
according to the weather information, the precipitation data are counted;
according to the statistical characteristics of the precipitation data, at least one precipitation value in the precipitation data and the frequency corresponding to each precipitation value are counted;
and carrying out weighted average on the precipitation data according to the precipitation values and the frequencies corresponding to the precipitation values to obtain a rainfall standard value.
4. The method of controlling a fan of an air conditioner as claimed in claim 1, wherein the determining the target rotational speed of the outdoor fan according to the initial rotational speed and a condenser temperature in the air conditioner comprises:
Acquiring the temperature of a condenser in the air conditioner;
if the temperature of the condenser is smaller than or equal to a preset temperature threshold value, acquiring a target rotating speed reduction value corresponding to the temperature of the condenser according to a mapping relation between the preset 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.
5. The fan control method of an air conditioner as claimed in claim 1, wherein after said controlling said outdoor fan to operate at said target rotational speed, said 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 greater than or equal to a preset change threshold value, the target rotating speed is reduced according to the change value;
if the change value is smaller than a preset change threshold value, the target rotating speed is increased according to the change value.
6. The fan control method of an air conditioner according to any one of claims 1 to 5, wherein after the controlling the outdoor fan to operate at the target rotational 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, controlling the outdoor fan to stop.
7. A fan control apparatus of an air conditioner, wherein an initial rotation speed control apparatus of the 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-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 change of the indoor and outdoor temperature difference;
the control module is used for controlling the outdoor fan to run according to the target rotating speed;
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 difference comprises the following steps:
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;
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 that the outdoor temperature reduction is caused by environmental rainfall, determining a rotation speed regulating coefficient according to the rainfall and a preset rainfall standard value, and determining a target rotation speed of the outdoor fan according to the rotation speed regulating coefficient and the initial rotation speed;
And 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, determining that the outdoor temperature reduction is not caused by environmental rainfall, and determining the target rotating speed of the outdoor fan according to the initial rotating speed and the temperature of a condenser in the air conditioner.
8. An air conditioner is characterized by comprising a memory and a processor; the memory stores an application program, and the processor is configured to run the application program in the memory to perform the operations in the fan control method of the air conditioner according to any one of claims 1 to 6.
9. A storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the steps in the fan control method of an air conditioner according to any one of claims 1 to 6.
CN202111200092.4A 2021-10-14 2021-10-14 Fan control method and device of air conditioner, air conditioner and storage medium Active CN113883687B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111200092.4A CN113883687B (en) 2021-10-14 2021-10-14 Fan control method and device of air conditioner, air conditioner and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111200092.4A CN113883687B (en) 2021-10-14 2021-10-14 Fan control method and device of air conditioner, air conditioner and storage medium

Publications (2)

Publication Number Publication Date
CN113883687A CN113883687A (en) 2022-01-04
CN113883687B true CN113883687B (en) 2023-05-23

Family

ID=79002884

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111200092.4A Active CN113883687B (en) 2021-10-14 2021-10-14 Fan control method and device of air conditioner, air conditioner and storage medium

Country Status (1)

Country Link
CN (1) CN113883687B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002277024A (en) * 2001-03-19 2002-09-25 Fujitsu General Ltd Method for controlling air conditioner
JP2011220626A (en) * 2010-04-12 2011-11-04 Kankyo System Kaihatsu Kk Energy-saving-air-conditioning monitoring and controlling device
CN105757902B (en) * 2016-04-05 2019-02-01 芜湖美智空调设备有限公司 The method and apparatus of outdoor fan of air-conditioner revolving speed control
CN109269038B (en) * 2018-10-22 2020-06-02 珠海格力电器股份有限公司 Air conditioner control method and device and air conditioning system
CN110243060A (en) * 2019-06-20 2019-09-17 广东美的暖通设备有限公司 Control method, air conditioner and computer readable storage medium
CN111219845A (en) * 2020-01-15 2020-06-02 珠海格力电器股份有限公司 Temperature control method and device, storage medium and air conditioner

Also Published As

Publication number Publication date
CN113883687A (en) 2022-01-04

Similar Documents

Publication Publication Date Title
US10396592B2 (en) System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
CA2761038C (en) System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
CN104374052B (en) Energy-saving control method for central air conditioner and system based on neutral net
CN108386972B (en) Energy-saving control system and method for air conditioner of machine room
CN109974237A (en) Air conditioner, the method for adjustment of air conditioner operation reserve and device
CN110762747B (en) Defrosting control method of air conditioner
CN109974223B (en) Air conditioner control method and device for adjusting air conditioner work according to weather forecast
CN109059195B (en) Control method and control system for central air conditioner for reducing load peak value of power grid
CN108105969B (en) Intelligent air conditioner monitoring system and abnormal air conditioner operation efficiency detection method
CN112283890A (en) Cold and heat quantity control method and device suitable for building heating and ventilation equipment monitoring system
CN106969477A (en) Air conditioning control method and air-conditioner controller
CN111059727A (en) Frequency control method for air conditioner compressor
CN110081560B (en) Method and device for adjusting running frequency of fan
CN113883687B (en) Fan control method and device of air conditioner, air conditioner and storage medium
KR102144674B1 (en) The Control Strategy of Cooling Tower by Real-time Performance Analysis
CN109974253B (en) Fan control method, device and system of air conditioner capable of adjusting fan rotating speed
CN114526537B (en) Equipment energy-saving control method and device
CN105546772A (en) Energy-saving control method of central air conditioner
CN110567125B (en) Fan self-adaptive control method and device during frosting, air conditioner and storage medium
CN114811857A (en) Cold station system operation optimization method
CN112050383B (en) Control method of air conditioner under refrigeration working condition
CN112050389B (en) Control method of air conditioner under refrigeration working condition
CN112050392B (en) Control method of air conditioner under refrigeration working condition
CN113654198A (en) Energy efficiency management and control system of central air conditioner
CA2904829C (en) System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant