CN106765986B - Air conditioner and air outlet control method thereof - Google Patents

Air conditioner and air outlet control method thereof Download PDF

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Publication number
CN106765986B
CN106765986B CN201710025487.2A CN201710025487A CN106765986B CN 106765986 B CN106765986 B CN 106765986B CN 201710025487 A CN201710025487 A CN 201710025487A CN 106765986 B CN106765986 B CN 106765986B
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wind speed
air
temperature
preset
next moment
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CN106765986A (en
Inventor
国德防
张玉波
温晓杰
吴洪金
臧元强
庄佳兰
赵娜
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • 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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • 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
    • 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
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F24F2110/22—Humidity 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
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/20—Feedback from users
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The invention discloses an air conditioner and an air outlet control method thereof, wherein the method comprises the following steps: determining a preset desired value u of the wind speedCAnd including the wind speed preset desired valueuCWind speed preset interval uA,uB](ii) a Presetting an expected value u at the wind speed according to normal distributionCAs an average over said preset interval of wind speed [ u ]A,uB]Determining the wind speed u at the next moment at randomn+1(ii) a Controlling the fan to rotate at the wind speed u at the next momentn+1And (5) air is exhausted. Compared with the prior art, the invention has the beneficial effects that: on one hand, the wind speed can be controlled to randomly and irregularly change, natural wind is highly simulated, discomfort caused by long-term blowing at the same wind speed is avoided, and the comfort level of a user is improved; on the other hand, the wind speed of the outlet air randomly appears in a certain range according to normal distribution, the range of the wind speed is ensured, the occurrence probability of more comfortable wind speed is also ensured, and the comfort level of a user is further improved.

Description

Air conditioner and air outlet control method thereof
Technical Field
The invention relates to an air conditioner and an air outlet control method thereof, and belongs to the technical field of household appliances.
Background
The air conditioner is a common electrical appliance in daily life, and more people use the air conditioner along with the improvement of the living standard of people. However, with the popularization of air conditioners, especially with the generation of "air conditioning diseases" in recent years, more and more people are aware that the environment created by air conditioners is quite different from the natural environment, and natural wind air conditioners become an important research topic and development direction for realizing health, energy conservation and environmental protection in the field of air conditioners.
The existing natural wind air conditioner usually utilizes an electric control technology to change the air outlet direction. The wind speed is still controlled according to a specific gear, for example, five gears with different wind speeds are preset: silence, low wind, apoplexy, high wind, powerful, when using, the user controls the air-out through selecting different gears. However, once a gear is selected, the air conditioner can only output air at a fixed wind speed corresponding to the gear, the wind speed is always constant before the gear is changed, the characteristic that the wind speed of natural wind changes randomly cannot be simulated, a user cannot really experience good experience of blowing the natural wind, and the comfort level of the user is reduced.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide an air conditioner capable of highly simulating natural wind and an air outlet control method thereof, so as to solve the problem of low comfort of a user.
In order to achieve one of the above objects, an embodiment of the present invention provides an air outlet control method for an air conditioner, where the method includes:
determining a preset desired value u of the wind speedCAnd including the wind speed preset desired value uCWind speed preset interval uA,uB]；
Presetting an expected value u at the wind speed according to normal distributionCAs an average over said preset interval of wind speed [ u ]A,uB]Determining the wind speed u at the next moment at randomn+1；
Controlling the fan to rotate at the wind speed u at the next momentn+1And (5) air is exhausted.
As a further improvement of an embodiment of the invention, the wind speed preset desired value uCSetting the wind speed to be within a preset interval [ u ]A,uB]To the median value of (c).
As a further improvement of an embodiment of the invention, said step "presets the desired value u at said wind speed according to a normal distributionCAs an average over said preset interval of wind speed [ u ]A,uB]Determining the wind speed u at the next moment at randomn+1"comprises:
establishing the air-out control quantity U at the next momentn+1Air-out control quantity U corresponding to current momentnThe control characteristic equation of (1); wherein the control characteristic equation comprises a random number R conforming to a normal distribution;
according to the control characteristic equation meterCalculating and outputting air outlet control quantity U at next momentn+1；
Establishing a standardized equation of the wind speed U corresponding to the wind outlet control quantity U;
the air outlet control quantity U at the next momentn+1The standardized equation is brought in, and the wind speed u at the next moment is calculated and outputn+1。
As a further improvement of an embodiment of the present invention, the control characteristic equation is set as:
Un+1＝0.5+(0.5-R)×(1-Un 2)
wherein, the value range of the random number R is set as [0.0,1.0) and the value probability accords with the normal distribution taking 0.5 as the mean value.
As a further improvement of an embodiment of the present invention, the step "calculates and outputs the controlled air output U at the next time according to the control characteristic equationn+1"comprises:
calculating the air outlet control quantity U at the next moment according to the control characteristic equationn+1；
Calculate Un+1And UnAnd comparing the absolute value of the delta U with the preset critical parameter G;
if | delta U | is less than G, the air outlet control quantity U at the next moment is outputn+1；
If | Δ U | ≧ G, then according to Un+1＝G×ΔU+UnCalculating and outputting new air outlet control quantity U at next momentn+1。
As a further improvement of an embodiment of the invention, the normalization equation is set as:
as a further improvement of an embodiment of the present invention, said step "controlling the fan at said wind speed u at the next momentn+1The air-out "includes:
establishing a conversion relation equation of the rotating speed N corresponding to the wind speed u;
according to the conversion relation equation meterCalculating the wind speed un+1Corresponding rotational speed Nn+1；
Controlling the fan to rotate at the rotating speed N at the next momentn+1Operation, achieved at said wind speed un+1And (5) air is exhausted.
As a further improvement of an embodiment of the present invention, the method further comprises the steps of:
and sensing outdoor environment temperature and controlling the air outlet temperature of the air conditioner to be the environment temperature.
As a further improvement of an embodiment of the present invention, the step of "sensing an outdoor ambient temperature and controlling an outlet air temperature of an air conditioner to the ambient temperature" includes:
sensing outdoor environment temperature and judging a temperature interval corresponding to the environment temperature;
if the environment temperature corresponds to a low-temperature preset temperature interval, controlling the air outlet temperature of the air conditioner to be a heating operation preset temperature;
if the environment temperature corresponds to a high-temperature preset temperature interval, controlling the air outlet temperature of the air conditioner to be a refrigeration operation preset temperature;
and if the ambient temperature corresponds to a comfortable preset temperature interval, controlling the air outlet temperature of the air conditioner to be the ambient temperature.
In order to achieve one of the above objects, an embodiment of the present invention further provides an air conditioner, including a heat exchange system, a fan, and a control system connected to the heat exchange system and the fan, where the control system controls the air conditioner to output air according to the air output control method.
Compared with the prior art, the invention has the following beneficial technical effects: on one hand, the wind speed can be controlled to randomly and irregularly change, natural wind is highly simulated, discomfort caused by long-term blowing at the same wind speed is avoided, and the comfort level of a user is improved; on the other hand, the wind speed of the outlet air randomly appears in a certain range according to normal distribution, the range of the wind speed is ensured, the occurrence probability of more comfortable wind speed is also ensured, and the comfort level of a user is further improved.
Drawings
Fig. 1 is a flowchart of an air outlet control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a probability curve diagram of the wind outlet speed of the air conditioner according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
An embodiment of the invention provides an air conditioner, which comprises a heat exchange system, a fan and a control system.
The heat exchange system comprises a compressor and a heat exchanger, the heat exchanger is used for exchanging heat with air flowing through the heat exchanger to heat or cool the air, and the fan is used for conveying the heated or cooled air to the indoor space to realize temperature regulation such as heating or cooling of the indoor space. The control system is connected with the heat exchange system and the fan and used for controlling the operation of the heat exchange system and the fan so as to realize the control of the air outlet of the air conditioner.
Specifically, the control system includes a controller, which may be specifically configured as a remote controller, and the controller may control the on/off of the air conditioner and may be further configured to collect information of the wind speed gear set/selected by a user. In the present embodiment, the air conditioner may be configured to have a plurality of wind speed stages or a single wind speed stage. And after the controller acquires the wind speed gear information, the control system controls the air outlet of the air conditioner according to an air outlet control method.
Furthermore, the control system comprises a setting module, a judging module, an operation module and a control module.
Referring to fig. 1, the air outlet control method of the air conditioner provided in this embodiment specifically includes the following steps:
determining a preset desired value u of the wind speedCAnd including the wind speed preset desired value uCWind speed preset interval uA,uB]；
Presetting an expected value u at the wind speed according to normal distributionCAs an average over said preset interval of wind speed [ u ]A,uB]Determining the wind speed u at the next moment at randomn+1；
Controlling the fan to rotate at the wind speed u at the next momentn+1And (5) air is exhausted.
Specifically, in this embodiment, the time since the air conditioner is turned on is divided into a plurality of consecutive moments according to a preset time period t, where the preset time period t is obtained by the setting module and may be specifically set to 5 s. For convenience of description, if the current time is the nth time, the next time (i.e., the next 5s) is the (n + 1) th time, where n denotes a natural number such as 0,1, 2, … …, etc. Correspondingly, in each parameter notation in the present application, n +1 are only expressions of the respective parameter at the current time and the next time, for example, u designates wind speed, and the wind speed at the next time is expressed as un+1。
The wind speed preset desired value uCThe wind speed preset interval [ u ]A,uB]All can be obtained by the setting module. Wherein the wind speed is preset to a desired value uCThe wind speed which is comfortable and healthy to human bodies is set, and the specific numerical value can be obtained through modes of big data statistics, market investigation, scientific research and the like; the wind speed preset desired value uCIs included in the wind speed preset interval [ u ]A,uB]Inner, i.e. uA≤uC≤uB. Of course, different wind speed gears of the air conditioner have different preset desired values u of the wind speedCAnd the wind speed preset interval [ u ]A,uB]。
In the present embodiment, referring to fig. 2, the desired value u is preset according to the wind speedCAs an average, in the wind speed preset interval [ u ]A,uB]Randomly determining the wind speed u at the next moment according to the normal distributionn+1. Thus, the wind speed u at the next momentn+1In the wind speed preset interval [ u ]A,uB]The internal random value cannot be calculated and determined in advance; moreover, since the random value is normalDistribution, therefore, wind speed u at the next momentn+1Taking the value of the preset expected value u of the wind speedCHas a larger probability, and takes a value close to the preset expected value u of the wind speedCIs greater than a preset desired value u away from the wind speedCThe probability of (c).
When determining the wind speed u at the next momentn+1And then, the control module controls the fan to operate at the next moment so as to realize the wind speed un+1And (5) air is exhausted.
According to the air conditioner and the air outlet control method thereof provided by the embodiment, on one hand, the random and irregular change of the wind speed can be controlled, the natural wind is highly simulated, the uncomfortable feeling caused by long-term air blowing at the same wind speed is avoided, and the comfort level of a user is improved; on the other hand, the wind speed of the outlet air randomly appears in a certain range according to normal distribution, the range of the wind speed is ensured, the occurrence probability of more comfortable wind speed is also ensured, and the comfort level of a user is further improved.
Further, in the present embodiment, the wind speed is preset to a desired value uCSetting the wind speed to be within a preset interval [ u ]A,uB]Intermediate values of (i.e. u)B-uC＝uC-uAThus, the wind speed is determined by uATo uCThe probability of occurrence is gradually increased, and the wind speed is increased by uCTo uBThe probability of occurrence gradually decreases.
Further, the step of "presetting the expected value u at the wind speed according to a normal distributionCAs an average over said preset interval of wind speed [ u ]A,uB]Determining the wind speed u at the next moment at randomn+1"comprises:
establishing the air-out control quantity U at the next momentn+1Air-out control quantity U corresponding to current momentnThe control characteristic equation of (1); wherein the control characteristic equation comprises a random number R conforming to a normal distribution;
calculating and outputting the air outlet control quantity U at the next moment according to the control characteristic equationn+1；
Establishing a standardized equation of the wind speed U corresponding to the wind outlet control quantity U;
the next momentCarved air-out control quantity Un+1The standardized equation is brought in, and the wind speed u at the next moment is calculated and outputn+1。
Specifically, the Random number R may be obtained and output by a normal distribution Random number generator (e.g., a function Random) of the operation module, and the operation module may include a single chip, a calculator, and the like. Since the governing characteristic equation contains the random number R, Un、Un+1Random correlation exists between the air outlets, so that the air outlet control quantity U which cannot be controlled according to the current moment is realizednDeducing the air-out control quantity U at the next momentn+1。
The operation module calculates and outputs the air outlet control quantity U at the next moment according to the control characteristic equationn+1"middle output air-out control quantity Un+1The standard equation is brought in, and the air outlet control quantity U at the next moment can be calculatedn+1Corresponding wind speed u at the next momentn+1Then outputs the wind speed un+1. Because the air-out control quantity U at the current moment can not be obtainednDeducing the air-out control quantity U at the next momentn+1That is, the wind speed u cannot be determined according to the current timenDeducing the wind speed u at the next momentn+1Thereby realizing the randomness and unpredictability of the wind outlet speed.
Further, in the present embodiment, the control characteristic equation is set as:
Un+1＝0.5+(0.5-R)×(1-Un 2)
the value range of the random number R is set to [0.0,1.0) and the value probability conforms to normal distribution with 0.5 as the mean value, that is, the normal distribution random number generator of the operation module randomly generates the random number R between [0.0,1.0) according to the normal distribution with 0.5 as the mean value. Thus, through the control characteristic equation, the value range of the air-out controlled variable U is [0,1] and the value probability also conforms to the normal distribution taking 0.5 as the mean value.
Further, the step calculates and outputs the air outlet control quantity U at the next moment according to the control characteristic equationn+1The method specifically comprises the following steps:
calculating the air outlet control quantity U at the next moment according to the control characteristic equationn+1；
Calculate Un+1And UnAnd comparing the absolute value of the delta U with the preset critical parameter G;
if | delta U | is less than G, the air outlet control quantity U at the next moment is outputn+1；
If | Δ U | ≧ G, then according to Un+1＝G×ΔU+UnCalculating and outputting new air outlet control quantity U at next momentn+1。
Specifically, the preset critical parameter G is obtained by the setting module and G can be set to a fixed value in a range from 0 to 0.5, preferably, G is 0.3; the operation module calculates Un+1And UnDifference Δ U, i.e.
ΔU＝Un+1-Un
Then the judging module compares the absolute value of the; if the absolute value delta U is less than G, directly outputting the air outlet control quantity U at the next moment calculated according to the control characteristic equationn+1(ii) a If | Δ U | ≧ G, Δ U, U needs to be setnSubstituting into formula Un+1＝G×ΔU+UnTo recalculate the new air outlet control quantity U at the next momentn+1And then outputs the calculation result. Therefore, through comparing | Δ U | with the preset critical parameter G, when the air outlet control quantity U at two adjacent moments is changed too much, U is changedn+1And the output is carried out after secondary calculation, so that the damage or sharp noise of the fan caused by the sudden change of the output of the fan in the subsequent flow is avoided, and the running stability of the air conditioner is enhanced.
Further, in the present embodiment, the normalization equation is set as:
that is, when U is turnedn+1When the wind speed is less than 0.5, presetting the expected value u of the wind speedCThe wind speed preset interval [ u ]A,uB]Upper limit value u ofBAnd self-step' calculating and outputting the air outlet control quantity U at the next moment according to the control characteristic equationn+1"middle output air-out control quantity Un+1Substituting into formula
un+1＝uC-(Un+1-0.5)×(uB-uC)×2
To calculate the wind speed u with the next momentn+1(ii) a When U is formedn+1If the wind speed is less than 0.5, presetting the expected value u of the wind speedCThe wind speed preset interval [ u ]A,uB]Lower limit value u ofASelf-step, calculating and outputting the air outlet control quantity U at the next moment according to the control characteristic equationn+1"middle output air-out control quantity Un+1Substituting into formula
un+1＝uC+(Un+1-0.5)×(uA-uC)×2
To calculate the wind speed u with the next momentn+1。
Further, the step controls the fan to rotate at the wind speed u at the next momentn+1The air-out "includes:
establishing a conversion relation equation of the rotating speed N corresponding to the wind speed u;
calculating the wind speed u according to the conversion relation equationn+1Corresponding rotational speed Nn+1；
Controlling the fan to rotate at the rotating speed N at the next momentn+1Operation, achieved at said wind speed un+1And (5) air is exhausted.
Specifically, the conversion relation equation may be obtained by calculating various structural parameters of the fan or may be obtained by performing experimental statistics on an operation rule of the fan, and in this embodiment, the conversion relation equation is set as:
the operation module is used for converting the wind speed u into a wind speedn+1The conversion relation equation is brought in, and the corresponding rotating speed N is obtained through calculationn+1Then the control module controls theThe fan rotates at the rotating speed N at the next momentn+1And operating, wherein the wind speed of the wind output by the fan is the wind speed un+1And the control is more accurate and convenient by controlling the rotating speed.
Further, in this embodiment, the control system further includes a sensing module, and the sensing module includes an outdoor temperature sensor and an outlet air temperature sensor. Wherein the outdoor temperature sensor is used for sensing the outdoor environment temperature; the air outlet temperature sensor is used for sensing the air outlet temperature of the air conditioner and can be specifically arranged at the positions of an air outlet of an indoor unit of the air conditioner, the fan, the heat exchanger and the like.
Correspondingly, in this embodiment, the air outlet control method further includes the steps of:
and sensing outdoor environment temperature and controlling the air outlet temperature of the air conditioner to be the environment temperature.
Specifically, the outdoor temperature sensor senses outdoor ambient temperature and feeds back the outdoor ambient temperature to the control module, and the control module controls the running state of the heat exchange system to enable the outlet air temperature to be consistent with the ambient temperature. Like this, the air conditioner of this embodiment, through the control to the air-out, not only can simulate the wind speed of natural wind random irregularity change, but also can simulate the temperature of natural wind at that time, and the indoor environment is more close natural environment, and the user can experience the dynamic thermal environment of nature, promotes its travelling comfort.
Further, the step of "sensing outdoor ambient temperature and controlling the outlet air temperature of the air conditioner to be the ambient temperature" specifically includes:
sensing outdoor environment temperature and judging a temperature interval corresponding to the environment temperature;
if the environment temperature corresponds to a low-temperature preset temperature interval, controlling the air outlet temperature of the air conditioner to be a heating operation preset temperature;
if the environment temperature corresponds to a high-temperature preset temperature interval, controlling the air outlet temperature of the air conditioner to be a refrigeration operation preset temperature;
and if the ambient temperature corresponds to a comfortable preset temperature interval, controlling the air outlet temperature of the air conditioner to be the ambient temperature.
Specifically, the low-temperature preset temperature interval (e.g., lower than 13 ℃), the high-temperature preset temperature interval (e.g., higher than 30 ℃), and the comfortable preset temperature interval (e.g., 13 to 30 ℃) can all be collected by the setting module in advance.
The outdoor temperature sensor transmits the sensed environment temperature to the judging module, and the judging module receives the environment temperature and judges a temperature interval corresponding to the environment temperature; if the ambient temperature corresponds to the low-temperature preset temperature interval, for example, the ambient temperature is-2 ℃, the control module controls the air conditioner to operate in a heating mode, that is, controls the working state of the heat exchange system to make the air outlet temperature of the air conditioner be the preset temperature for heating operation, so that hot air is delivered indoors; if the ambient temperature corresponds to the high-temperature preset temperature interval, for example, the ambient temperature is 36 ℃, the control module controls the air conditioner to operate in a refrigeration mode, that is, controls the working state of the heat exchange system so that the air outlet temperature of the air conditioner is the preset temperature for refrigeration operation, thereby realizing cold air delivery to the indoor space; if the ambient temperature corresponds to the comfortable preset temperature interval, for example, the ambient temperature is 22 ℃, the control module controls the air conditioner to operate in a comfortable mode, that is, controls the working state of the heat exchange system so that the air outlet temperature of the air conditioner is consistent with the ambient temperature.
Thus, the air conditioner can cool to reduce the indoor temperature when the outdoor temperature is high, heat to raise the indoor temperature when the outdoor temperature is low, and cool or heat according to the specific temperature when the outdoor temperature is proper, so as to adjust the indoor temperature.
Further, in this embodiment, the air conditioner further includes a humidity control module, and the control system is further configured to control the operation of the humidity control module to regulate and control the outlet air humidity of the air conditioner. Specifically, the setting module is used for collecting a preset humidity interval suitable for a human body and a preset humidity value in advance, and the sensing module further comprises an outdoor humidity sensor used for sensing outdoor environment humidity. Correspondingly, the air outlet control method further comprises the following steps:
the outdoor humidity sensor senses outdoor environment humidity, and the judging module judges whether the environment humidity corresponds to a preset humidity interval or not;
if so, the control module controls the humidity adjusting module to work so that the air outlet humidity of the air conditioner is the environment humidity;
if not, the control module controls the humidity adjusting module to work so that the outlet air humidity of the air conditioner is a preset humidity value.
Therefore, the control of the air outlet humidity can be realized, when the environment humidity does not accord with the standard of the human body comfort level (for example, plum rainy days), the air conditioner is controlled to output air with a preset humidity value, and when the environment humidity accords with the standard of the human body comfort level, the indoor humidity is controlled to be consistent with the outdoor humidity, so that the indoor humidity can be maintained to be more comfortable, and the indoor humidity can also be close to the natural environment.
Further, in this embodiment, the air conditioner may further include an aroma module, the controller may be further configured to collect a natural scene mode set/selected by a user, the natural scene mode includes a forest mode, an ocean mode, a general indoor mode, and the like, and different natural scene modes are correspondingly provided with different temperature and humidity parameters. In this embodiment, the method further includes the steps of:
collecting a natural scene mode set by an air conditioner;
and when the natural scene mode is set to be the forest mode, controlling the aromatherapy module to work.
Therefore, the air outlet of the air conditioner can be enhanced in fragrance, and the sensory enjoyment of a user is improved.
Compared with the prior art, the air conditioner and the air outlet control method thereof have the following beneficial technical effects: on one hand, the wind speed can be controlled to randomly and irregularly change, natural wind is highly simulated, discomfort caused by long-term blowing at the same wind speed is avoided, and the comfort level of a user is improved; on the other hand, the wind speed of the outlet wind randomly appears in a certain range according to normal distribution, so that the range of the wind speed is ensured, the occurrence probability of more comfortable wind speed is also ensured, and the comfort of a user is further improved; except simulating the wind speed, the temperature of natural wind at that time can also be simulated, the indoor environment is closer to the natural environment, the dynamic thermal environment of nature can be experienced to the user, promotes its travelling comfort.
In the several embodiments provided in the present invention, it should be understood that the above-described structure, system and method embodiments are merely illustrative, for example, the division of the modules is only one logical function division, and other division may be implemented in practice, for example, a plurality of modules or components may be combined or integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiment.
In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist alone physically, or 2 or more modules may be integrated into one module. The integrated module can be realized in a hardware form, and can also be realized in a form of hardware and a software functional module.
The detailed description set forth above is merely a specific description of possible embodiments of the present invention and is not intended to limit the scope of the invention, which is intended to include within the scope of the invention equivalent embodiments or modifications that do not depart from the technical spirit of the present invention.

Claims (5)

1. An air outlet control method of an air conditioner is characterized by comprising the following steps:
determining a preset desired value u of the wind speedCAnd including the wind speed preset desired value uCWind speed preset interval uA,uB]；
Presetting an expected value u at the wind speed according to normal distributionCAs an average over said preset interval of wind speed [ u ]A,uB]Determining the wind speed u at the next moment at randomn+1；
Controlling the fan to rotate at the wind speed u at the next momentn+1Air is discharged;
establishing the air-out control quantity U at the next momentn+1Air-out control quantity U corresponding to current momentnThe control characteristic equation of (2) includes a random number R in accordance with a normal distribution, and the control characteristic equation is set as:
Un+1＝0.5+(0.5-R)×(1-Un 2)
calculating the air outlet control quantity U at the next moment according to the control characteristic equationn+1；
Calculate Un+1And UnAnd comparing the absolute value of the delta U with the preset critical parameter G;
if | delta U | is less than G, the air outlet control quantity U at the next moment is outputn+1；
If | Δ U | ≧ G, then according to Un+1＝G×ΔU+UnCalculating and outputting new air outlet control quantity U at next momentn+1；
Establishing a standardized equation of the wind speed U corresponding to the wind outlet control quantity U, wherein the standardized equation is set as follows:
the value range of the air outlet control quantity U is [0,1 ];
the air outlet control quantity U at the next momentn+1The standardized equation is brought in, and the wind speed u at the next moment is calculated and outputn+1；
Sensing outdoor environment temperature and judging a temperature interval corresponding to the environment temperature;
if the environment temperature corresponds to a low-temperature preset temperature interval, controlling the air outlet temperature of the air conditioner to be a heating operation preset temperature;
if the environment temperature corresponds to a high-temperature preset temperature interval, controlling the air outlet temperature of the air conditioner to be a refrigeration operation preset temperature;
and if the ambient temperature corresponds to a comfortable preset temperature interval, controlling the air outlet temperature of the air conditioner to be the ambient temperature.
2. The air-out control method of the air conditioner according to claim 1, wherein the preset desired value u of the wind speed isCSetting the wind speed to be within a preset interval [ u ]A,uB]To the median value of (c).
3. The air outlet control method of the air conditioner according to claim 1, wherein a value range of the random number R is set to [0.0,1.0) and a value probability conforms to a normal distribution with 0.5 as a mean value.
4. The air-out control method of the air conditioner according to claim 1, wherein the step of controlling the fan to have the wind speed u at the next momentn+1The air-out "includes:
establishing a conversion relation equation of the rotating speed N corresponding to the wind speed u;
calculating the wind speed u according to the conversion relation equationn+1Corresponding rotational speed Nn+1；
Controlling the fan to rotate at the rotating speed N at the next momentn+1Operation, achieved at said wind speed un+1And (5) air is exhausted.
5. An air conditioner comprises a heat exchange system, a fan and a control system connected with the heat exchange system and the fan, and is characterized in that the control system controls the air conditioner to output air according to the air output control method as claimed in any one of claims 1 to 4.
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