CN111486542A - Air conditioner and control method and control device thereof - Google Patents

Air conditioner and control method and control device thereof Download PDF

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CN111486542A
CN111486542A CN202010349005.0A CN202010349005A CN111486542A CN 111486542 A CN111486542 A CN 111486542A CN 202010349005 A CN202010349005 A CN 202010349005A CN 111486542 A CN111486542 A CN 111486542A
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target
air
space
temperature
angle
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CN111486542B (en
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李德鹏
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Hisense Guangdong Air Conditioning Co Ltd
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Hisense Guangdong Air Conditioning Co 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
    • 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
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F24F2110/20—Humidity
    • 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

Abstract

The invention discloses an air conditioner and a control method and a control device thereof, wherein the control method of the air conditioner comprises the following steps: in an air conditioner action space, acquiring target clothing thermal resistance, target metabolic rate and target average radiation temperature; acquiring the temperature and humidity of the air in the space; determining the air flow rate of a target point in the space according to the target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, and the air temperature and humidity in the space; and controlling the running state of an air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor. According to the air conditioner control method, the running state of the air deflector of the indoor unit can be controlled, so that the room air is kept in a continuous comfortable state, and the continuous comfortable energy-saving running of the air conditioner can be kept.

Description

Air conditioner and control method and control device thereof
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method and a control device thereof.
Background
In the related art, the air deflector of the air outlet of the air conditioner is usually set to a plurality of gears through experimental conditions, and in actual use, the angle of the air deflector is automatically adjusted according to a set angle, or a user adjusts the angle of the air deflector according to the needs of the user. However, the above-mentioned control method for the angle of the air deflector has obvious disadvantages: on one hand, a plurality of gear angles set in a laboratory cannot well cover the air supply requirement of a user in real use; on the other hand, when the user adjusts the air deflector, the main consideration is that the user considers uncomfortable, but the user does not know how to adjust the air deflector to be suitable, the angle of the air deflector is often adjusted to the minimum air outlet position, the too low air speed is not favorable for the heat exchange effect of the air conditioner, the problems of poor refrigeration effect, high energy consumption, high electricity charge and the like are caused, the comfort of the user cannot be well improved, and the user is required to manually adjust the air deflector back and forth, so that the burden of the user is increased.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an air conditioner control method, which can control the operation state of an air deflector of an indoor unit according to a PMV (Predicted Mean volume) value, so as to keep the room air in a continuous comfortable state, thereby keeping the air conditioner in continuous comfortable energy-saving operation.
Another object of the present invention is to provide an air conditioner control device having the above air conditioner control method.
Another object of the present invention is to provide an air conditioner having the above air conditioner control method.
An air conditioner control method according to an embodiment of a first aspect of the present invention includes: in an air conditioner action space, acquiring target clothing thermal resistance, target metabolic rate and target average radiation temperature; acquiring the temperature and humidity of the air in the space; determining the air flow rate of a target point in the space according to the target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, and the air temperature and humidity in the space; and controlling the running state of an air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor.
According to the air conditioner control method provided by the embodiment of the invention, in an air conditioner action space, target clothing thermal resistance, target metabolic rate and target average radiation temperature are obtained, air temperature and humidity in the space are obtained, then, according to target human body thermal comfort evaluation index values, target clothing thermal resistance, target metabolic rate, target average radiation temperature and air temperature and humidity in the space, the air flow rate of a target point in the space is determined, and the operation state of an air deflector of an indoor unit is controlled according to the air flow rate of the target point in the space and the current rotating speed of an indoor fan motor. Therefore, the air flow rate in the space is calculated through the target human body thermal comfort evaluation index value and the influence factors (such as clothing thermal resistance, metabolic rate, average radiation temperature, air temperature and humidity in the space) of the index value, and then the angle of the air deflector of the indoor unit is adjusted based on the air flow rate and the current rotating speed of the indoor fan motor, so that the room air is kept in a continuous comfortable state, the air conditioner can be kept in continuous comfortable and energy-saving operation, the heating and cooling requirements of a user are guaranteed, and meanwhile the comfort of the user can be improved.
It should be noted that the air flow rate is directly related to the indoor fan motor speed and the indoor unit air deflector angle.
According to some embodiments of the present invention, the controlling the operation state of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotation speed of the indoor fan motor includes: determining a target angle of an air deflector of the indoor unit according to the air flow rate of a target point in the space and the current rotating speed of an indoor fan motor; and correspondingly controlling the air deflector of the indoor unit according to the target angle.
It should be noted that, the angle of the air deflector of the indoor unit corresponding to each fan motor at the rotation speed has a minimum operation angle and a maximum operation angle, and in order to facilitate the control of the angle of the air deflector, according to some embodiments of the present invention, the determining the target angle of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotation speed of the indoor fan motor includes:
determining the maximum wind speed and the minimum wind speed corresponding to the target point under the current fan motor rotating speed according to the current rotating speed of the indoor fan motor;
comparing the air flow rate of the target point in the space with the maximum wind speed and the minimum wind speed corresponding to the target point at the current fan motor rotating speed;
if the air flow velocity of the target point in the space is smaller than or equal to the minimum air velocity corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the minimum air velocity as the target angle;
if the air flow velocity of the target point in the space is larger than or equal to the maximum air speed corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the maximum air speed as the target angle;
and if the air velocity of the target point in the space is greater than the minimum wind velocity and less than the maximum wind velocity, performing interpolation calculation based on the air velocity of the target point in the space, the minimum wind velocity and the maximum wind velocity to obtain the target angle.
In order to adjust a plurality of gear angles of the air deflector and enrich diversified adjustment of the air deflector, according to some embodiments of the present invention, the performing interpolation calculation based on the air velocity of the target point in the space, the minimum wind velocity, and the maximum wind velocity to obtain the target angle includes:
determining a target flow speed reference value range in which the air flow speed of a target point in the space is located from a plurality of flow speed reference value ranges under the current fan motor rotating speed; wherein the plurality of flow speed reference value ranges are obtained by dividing a numerical interval consisting of the minimum wind speed and the maximum wind speed into a plurality of intervals through at least one flow speed intermediate value, and the flow speed intermediate value is greater than the minimum wind speed and less than the maximum wind speed;
determining a first air deflector operation angle corresponding to a first critical value in the target flow speed reference value range, and determining a second air deflector operation angle corresponding to a second critical value in the target flow speed reference value range;
and carrying out interpolation calculation according to the air flow velocity of the target point in the space, the first critical value, the second critical value, the first air deflector operation angle and the second air deflector operation angle to obtain the target angle.
It should be noted that, if the types of the indoor unit air deflectors are different, the control of the air deflector angle will also be different. According to some embodiments of the present invention, the correspondingly controlling the indoor unit air deflector according to the target angle includes:
when the indoor unit air deflector is an electrodeless adjusting type air deflector, correspondingly controlling the indoor unit air deflector according to the target angle;
when the indoor unit air deflector is an air deflector with an adjustable pole, finding out the operation angle closest to the target angle from the operation angles of the first air deflector and the second air deflector, and correspondingly controlling the indoor unit air deflector according to the found operation angle closest to the target angle.
In order to improve the calculation accuracy, according to some embodiments of the present invention, the obtaining the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature includes:
acquiring the initial temperature in the air conditioner acting space;
and acquiring the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature according to the initial temperature in the air conditioner action space.
In order to meet the requirements of users for cooling and heating and maintain continuous comfortable and energy-saving operation, according to some embodiments of the present invention, the acquiring the air temperature and humidity in the space includes:
acquiring the temperature in the air conditioner acting space;
and when the temperature in the air conditioner acting space reaches a target temperature or the difference between the temperature in the air conditioner acting space and the target temperature meets a target value, acquiring the temperature and the humidity of the air in the space.
According to some embodiments of the invention, the target human thermal comfort evaluation index value is 0. Thereby, the comfort level in the air conditioner working space can be maintained in the highest comfort state.
An air conditioner control device according to an embodiment of a second aspect of the present invention includes:
the parameter acquisition module is used for acquiring target clothing thermal resistance, target metabolic rate and target average radiation temperature in the air conditioner action space;
the temperature and humidity acquisition module is used for acquiring the temperature and humidity of the air in the space;
the air flow rate determining module is used for determining the air flow rate of a target point in the space according to a target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature and the air temperature and humidity in the space;
and the air deflector control module is used for controlling the running state of the air deflector of the indoor unit according to the air velocity of the target point in the space and the current rotating speed of the indoor fan motor.
According to the air conditioner control device provided by the embodiment of the invention, the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature can be obtained in the air conditioner action space through the parameter obtaining module, the temperature and humidity obtaining module obtains the air temperature and humidity in the space, the air flow rate determining module determines the air flow rate of a target point in the space according to the target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, the air temperature and humidity in the space, and the air deflector control module controls the running state of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor. Therefore, the air flow rate in the space is calculated through the target human body thermal comfort evaluation index value and the influence factors (such as clothing thermal resistance, metabolic rate, average radiation temperature, air temperature and humidity in the space) of the index value, and then the angle of the air deflector of the indoor unit is adjusted based on the air flow rate and the current rotating speed of the indoor fan motor, so that the room air is kept in a continuous comfortable state, the air conditioner can be kept in continuous comfortable and energy-saving operation, the heating and cooling requirements of a user are guaranteed, and meanwhile the comfort of the user can be improved.
According to some embodiments of the invention, the air deflection control module comprises:
the target angle determining unit is used for determining a target angle of the air deflector of the indoor unit according to the air flow rate of a target point in the space and the current rotating speed of the indoor fan motor;
and the control unit is used for correspondingly controlling the air deflector of the indoor unit according to the target angle.
According to some embodiments of the invention, the target angle determination unit is specifically configured to:
determining the maximum wind speed and the minimum wind speed corresponding to the target point under the current fan motor rotating speed according to the current rotating speed of the indoor fan motor;
comparing the air flow rate of the target point in the space with the maximum wind speed and the minimum wind speed corresponding to the target point at the current fan motor rotating speed;
if the air flow velocity of the target point in the space is smaller than or equal to the minimum air velocity corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the minimum air velocity as the target angle;
if the air flow velocity of the target point in the space is larger than or equal to the maximum air speed corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the maximum air speed as the target angle;
and if the air velocity of the target point in the space is greater than the minimum wind velocity and less than the maximum wind velocity, performing interpolation calculation based on the air velocity of the target point in the space, the minimum wind velocity and the maximum wind velocity to obtain the target angle.
According to some embodiments of the invention, the target angle determination unit is specifically configured to:
determining a target flow speed reference value range in which the air flow speed of a target point in the space is located from a plurality of flow speed reference value ranges under the current fan motor rotating speed; wherein the plurality of flow speed reference value ranges are obtained by dividing a numerical interval consisting of the minimum wind speed and the maximum wind speed into a plurality of intervals through at least one flow speed intermediate value, and the flow speed intermediate value is greater than the minimum wind speed and less than the maximum wind speed;
determining a first air deflector operation angle corresponding to a first critical value in the target flow speed reference value range, and determining a second air deflector operation angle corresponding to a second critical value in the target flow speed reference value range;
and carrying out interpolation calculation according to the air flow velocity of the target point in the space, the first critical value, the second critical value, the first air deflector operation angle and the second air deflector operation angle to obtain the target angle.
According to some embodiments of the invention, the control unit is specifically configured to:
when the indoor unit air deflector is an electrodeless adjusting type air deflector, correspondingly controlling the indoor unit air deflector according to the target angle;
when the indoor unit air deflector is an air deflector with an adjustable pole, finding out the operation angle closest to the target angle from the operation angles of the first air deflector and the second air deflector, and correspondingly controlling the indoor unit air deflector according to the found operation angle closest to the target angle.
According to some embodiments of the present invention, the parameter obtaining module is specifically configured to:
acquiring the initial temperature in the air conditioner acting space;
and acquiring the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature according to the initial temperature in the air conditioner action space.
According to some embodiments of the invention, the temperature and humidity acquisition module is specifically configured to:
acquiring the temperature in the air conditioner acting space;
and when the temperature in the air conditioner acting space reaches a target temperature or the difference between the temperature in the air conditioner acting space and the target temperature meets a target value, acquiring the temperature and the humidity of the air in the space.
According to some embodiments of the invention, the target human thermal comfort evaluation index value is 0.
An air conditioner according to an embodiment of a third aspect of the present invention includes:
an indoor unit air deflector;
an indoor fan motor;
the temperature sensor is used for collecting the air temperature in the air conditioner acting space;
the humidity sensor is used for acquiring the humidity in the air conditioner acting space;
at least one processor;
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the air conditioner control method according to any of the embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of an air conditioner control method according to an embodiment of the present invention;
fig. 2 is a flowchart of an air conditioner control method according to another embodiment of the present invention;
fig. 3 is a flowchart of an air conditioner control method according to still another embodiment of the present invention;
fig. 4 is a flowchart of an air conditioner control method according to an embodiment of the present invention;
fig. 5 is a schematic structural view of an air conditioner control device according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 7 is a sectional view taken along line a-a in fig. 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An air conditioner control method according to an embodiment of a first aspect of the present invention is described below with reference to fig. 1 to 7.
It should be noted that the currently internationally recognized evaluation index PMV for human thermal comfort is the predicted average thermal sensation index, and the PMV evaluation index includes 4 environmental factors and 2 human factors. Wherein, the 4 environmental factors may include air temperature, humidity, air flow rate and average radiation temperature; the 2 personal factors may include metabolic rate and clothing thermal resistance. The calculation formula of the PMV can be as follows:
Figure BDA0002471252090000071
in the formula:
Figure BDA0002471252090000072
Figure BDA0002471252090000073
Figure BDA0002471252090000074
PMV: an expected average heat sensation index;
m: metabolic rate in watts per square meter (W/m)2)；
W: heat consumed by external work (negligible for most activities), in watts per square meter (W/m)2)；
Pa: water vapor partial pressure in pascals (Pa);
ta: air temperature in degrees Celsius (. degree. C.);
fc1: the ratio of the body surface area of the wearer when worn to the body surface area of the wearer when exposed;
tc1: garment surface temperature in degrees Celsius (C.))；
Figure BDA0002471252090000075
Mean radiant temperature in degrees Celsius (. degree. C.);
hc: convective heat transfer system with unit of watt per square meter centigrade (W/(m)2·℃)；
Ic1: clothing thermal resistance in units of degrees Celsius per square meter per watt (m)2·℃/W)；
var: air flow rate in meters per second (m/s).
The PMV index is obtained from a static state. In applications where there is a small variation in one or more of the parameters, a good approximation can be obtained with a time-weighted average of the first 1h of the parameter.
It is recommended that the PMV index be used only when the PMV value is between-2 + 2.
Further, when the following 6 main parameters are in the following ranges, the PMV index may be recommended.
M＝46.25W/m2～232.60W/m2(0.8met～4met)
Ic1＝0m2·℃/W～0.31m2·℃/W(0clo～2clo)
As can be seen from the PMV calculation formula, the PMV can be simply expressed in the form: PMV ═ F (air temperature, humidity, air flow rate, mean radiant temperature, metabolic rate, clothing thermal resistance). For the air conditioner, the average room radiation temperature, the human body metabolic rate and the clothing thermal resistance can be set according to relevant standards, the main factors influencing the PMV are temperature, humidity and air flow rate, the temperature and the humidity of the room can be directly measured by a sensor, and the air flow rate is directly related to the rotating speed of a fan and the angle of an air deflector. If a relation table of the air flow rate of the room, the rotating speed of the fan and the angle of the air deflector is established, the PMV value of the room can be adjusted through the angle of the air deflector, and therefore the comfort degree of a user is improved. Based on the principle, the invention provides an air conditioner control method, a control device and an air conditioner, which can control the running state of an air deflector of an indoor unit according to a PMV value to keep room air in a continuous comfortable state, so that the air conditioner can be kept in continuous comfortable energy-saving running.
Fig. 1 is a flowchart of an air conditioner control method according to an embodiment of the present invention. It should be noted that the air conditioner control method according to the embodiment of the present invention may be applied to the air conditioner control device according to the embodiment of the present invention, and the control device may be configured on an air conditioner. As shown in fig. 1, the air conditioner control method may include:
step 201, obtaining target clothing thermal resistance, target metabolic rate and target average radiation temperature in an air conditioner acting space.
It will be appreciated that the three factors of garment thermal resistance, metabolic rate and average radiation temperature described above will have different numerical performance at different ambient temperatures. For example, the setting table of the clothing thermal resistance, the metabolic rate and the average radiation temperature at different environmental temperatures can be shown in the following table 1, wherein the corresponding relationship between the temperature in the table and the corresponding numerical values of the clothing thermal resistance, the metabolic rate and the average radiation temperature is an empirical value obtained through a large number of experimental tests.
TABLE 1 setting table of thermal resistance, metabolic rate and average radiation temperature of clothes under different environmental temperatures
Figure BDA0002471252090000081
As can be seen from Table 1 above, the three factors of clothing thermal resistance, metabolic rate and average radiation temperature have different numerical expressions under different ambient temperatures. It should be noted that, generally, the ambient temperatures in the room and the outside do not differ too much, so the three factors of the thermal resistance, the metabolic rate and the average radiation temperature of the garment affected by the ambient temperatures do not change much at the indoor and the outdoor temperatures, for example, when a user wears a certain piece of clothes, the thermal resistance of the garment does not differ much at the indoor and the outdoor ambient temperatures, and therefore, the three factors of the thermal resistance, the metabolic rate and the average radiation temperature of the garment have little influence on the PMV value of the evaluation index of the human thermal comfort level at different ambient temperatures. Based on the characteristic, in one embodiment of the present invention, when the operation state of the air deflector of the indoor unit is controlled based on the PMV value, the target clothing thermal resistance C, the target metabolic rate M and the target average radiation temperature TF may be obtained according to a certain fixed temperature. That is, the target clothing thermal resistance C, the target metabolic rate M, and the target average radiation temperature TF may be obtained by referring to table 1 based on a certain fixed temperature. As an example, the certain fixed temperature may be an average temperature value throughout the year.
In order to improve the calculation accuracy, in another embodiment of the present invention, an initial temperature in the air conditioner operation space may be obtained, and the target clothing thermal resistance, the target metabolic rate, and the target average radiation temperature may be obtained according to the initial temperature in the air conditioner operation space. For example, when the air conditioner receives a power-on signal, the temperature in the air conditioner working space can be collected by the indoor temperature sensor to obtain an initial temperature T0 in the air conditioner working space, and the initial temperature T0 is searched in the table 1 to obtain a target clothing thermal resistance C, a target metabolic rate M and a target average radiation temperature TF corresponding to the initial temperature T0. Therefore, the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature are determined through the initial temperature in the air conditioner acting space, the clothing thermal resistance, the metabolic rate and the average radiation temperature which are more in line with the current environment can be obtained, calculation is carried out on the basis of the clothing thermal resistance, the metabolic rate and the average radiation temperature which are more in line with the current environment in the following process, the air flow rate can be obtained more accurately, and calculation accuracy is improved.
Step 202, acquiring the air temperature and humidity in the space.
In the embodiment of the present invention, when the air conditioner receives a power-on signal, the air deflector of the indoor unit may be controlled to perform cooling or heating operation according to a preset position, and at this time, the temperature in the space where the air conditioner is operating may be obtained in real time or periodically, and the temperature in the space reaches a target temperature (where the target temperature may be a certain set temperature), or a difference between the temperature in the space and the target temperature satisfies a target value, for example, the difference between the temperature in the space and the target temperature is equal to the target value, and at this time, the current air temperature and humidity in the space may be obtained. From this, the temperature reaches the settlement temperature in the space, or the difference between the temperature in the space and this target temperature satisfies the target value, can satisfy user's demand basically this moment, in order to keep lasting comfortable and energy-conserving operation, the temperature reaches the settlement temperature in the space, or when the difference between the temperature in the space and this target temperature satisfies the target value, gather again and record current air temperature T ring, environment humidity RH ring, and like this, can improve the calculation accuracy of air flow rate, thereby based on this high accuracy air flow rate, adjustment aviation baffle angle that can be accurate, thereby can promote user's comfort level.
And step 203, determining the air flow rate of a target point in the space according to the target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, and the air temperature and humidity in the space.
It will be appreciated from the PMV calculation formula that the PMV can be expressed simply as follows: the PMV is a function value composed of 6 parameters of air temperature, humidity, air flow rate, average radiation temperature, metabolic rate, and clothing thermal resistance, and based on the function, if the PMV is assumed to be a target value and the parameters of clothing thermal resistance, metabolic rate, average radiation temperature, air temperature, and humidity have corresponding values, a functional formula of the air flow rate can be derived based on the above-mentioned PMV, for example, the air flow rate V is F1 (T-ring, RH-ring, C, M, TF, PMV).
In this step, the air velocity at the target point in the space can be calculated based on the target human thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, the air temperature and humidity in the space, and the function formula of the air velocity V. As an example, the above target human thermal comfort evaluation index PMV value may preferably be 0. It can be understood that when the temperature in the space reaches the set temperature or the difference between the temperature in the space and the target temperature meets the target value, the requirement of the user can be basically met, and in order to keep continuous comfortable and energy-saving operation, the rotating speed of the indoor fan motor can be controlled according to the PMV with the highest comfort degree being 0, therefore, in the present invention, the value of the target human body thermal comfort degree evaluation index value may preferably be 0.
It should be noted that in the embodiment of the present invention, the target point may be understood as a set point or a set area in a space, for example, a middle layer area of a three-dimensional space in a room, i.e., approximately 1.5 meters from the floor of the room. It is to be understood that the above description of the target point is only for the convenience of understanding of those skilled in the art and is not to be taken as a specific limitation of the present invention, and the position of the target point may be set based on the actual situation and is not specifically limited herein.
And 204, controlling the running state of an air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor.
It should be noted that the air flow rate is directly related to the indoor fan motor speed and the indoor unit air deflector angle. In the embodiment of the invention, the target angle of the air deflector of the indoor unit can be determined according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor, and the air deflector of the indoor unit is correspondingly controlled according to the target angle, namely, the air conditioner controller controls the target angle A obtained by calculation as the target value of the angle of the air deflector of the indoor unit. For example, a relation table of the wind speed of the target point in the space, the rotating speed of the indoor fan motor and the angle of the indoor unit wind deflector may be pre-established, for example, as shown in the following table 2. After the current rotating speed of the indoor fan motor is determined, the rotating speed of the current fan motor is found in the table 2, then an air deflector angle corresponding to the air flow speed of a target point in a space, namely a target angle, is found out from a plurality of air deflector angles corresponding to the rotating speed of the current fan motor based on the obtained air flow speed of the target point in the space, and then the air deflector of the indoor unit can be correspondingly controlled based on the target angle, so that the angle of the air deflector of the indoor unit can be controlled according to the PMV (maximum comfort) of 0, and the continuous comfortable energy-saving operation of the air conditioner can be maintained.
TABLE 2 relation table of wind speed of target point in space, indoor fan motor speed and indoor unit air deflector angle
Figure BDA0002471252090000111
Alternatively, in table 2 above, R1 is less than R2 and R2 is less than R3. For example, assuming that the air flow rate at the target point in the space is calculated to be V1, and the current rotation speed of the indoor fan motor is determined to be R2, at this time, the current fan motor rotation speed R2 can be found in the table, the wind speed corresponding to the air flow rate V1 at the target point in the space is found out from the multiple wind speeds "V21, …, V22, …, and V23" corresponding to the current fan motor rotation speed R2, for example, V22, and the corresponding air deflector angle is found out from table 2 according to the wind speed V22 to be a22, then the air deflector angle a22 is the target angle, and the angle a22 is used as the target value of the air deflector of the indoor unit to be controlled.
According to the air conditioner control method provided by the embodiment of the invention, in an air conditioner action space, target clothing thermal resistance, target metabolic rate and target average radiation temperature are obtained, air temperature and humidity in the space are obtained, then, according to target human body thermal comfort evaluation index values, target clothing thermal resistance, target metabolic rate, target average radiation temperature and air temperature and humidity in the space, the air flow rate of a target point in the space is determined, and the operation state of an air deflector of an indoor unit is controlled according to the air flow rate of the target point in the space and the current rotating speed of an indoor fan motor. Therefore, the air flow rate in the space is calculated through the target human body thermal comfort evaluation index value and the influence factors (such as clothing thermal resistance, metabolic rate, average radiation temperature, air temperature and humidity in the space) of the index value, and then the angle of the air deflector of the indoor unit is adjusted based on the air flow rate and the current rotating speed of the indoor fan motor, so that the room air is kept in a continuous comfortable state, the air conditioner can be kept in continuous comfortable and energy-saving operation, the heating and cooling requirements of a user are guaranteed, and meanwhile the comfort of the user can be improved.
It should be noted that the angle of the air deflector of the indoor unit corresponding to each fan motor rotation speed has a minimum operation angle and a maximum operation angle, and in order to facilitate the control of the air deflector angle, in the embodiment of the present invention, as shown in the above table 2, the air deflector angle is divided into a plurality of gears, where the angle of each air deflector of the indoor unit corresponding to each fan motor rotation speed corresponds to a wind speed value, so that, based on the above table 2 and the relationship table shown, the target angle of the air deflector of the indoor unit at this time can be determined by the air flow rate of the target point in the current space and the current rotation speed of the indoor fan motor, and the air deflector of the indoor unit can be controlled to perform heating and cooling operations based on the target angle. Specifically, in some embodiments of the present invention, as shown in fig. 2, the specific implementation process of determining the target angle of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotation speed of the indoor fan motor may include:
step 301, determining a maximum wind speed and a minimum wind speed corresponding to a target point under the current fan motor rotation speed according to the current rotation speed of the indoor fan motor.
For example, taking the current rotation speed of the indoor fan motor as R2 as an example, as seen from the above table 2, it can be determined that the maximum wind speed corresponding to the target point at the current fan motor rotation speed R2 is V23 and the minimum wind speed is V21.
Step 302, comparing the air flow rate of the target point in the space with the maximum air speed and the minimum air speed corresponding to the target point at the current fan motor rotating speed.
It can be understood that, since the air flow rate is directly related to the indoor fan motor rotation speed and the indoor unit air deflector angle, the corresponding indoor unit air deflector angle at each fan motor rotation speed has the minimum operating angle and the maximum operating angle, and therefore, the wind speed at the target point at the current fan motor rotation speed also has the minimum wind speed and the maximum wind speed.
In order to avoid that the air flow rate of the target point in the space is too high or too low due to the fact that the angle of the air deflector of the indoor unit exceeds the minimum or maximum operation angle, in the embodiment of the invention, after the air flow rate of the target point in the current space is obtained, the air flow rate of the target point needs to be compared with the maximum air speed and the minimum air speed corresponding to the target point under the current fan motor rotating speed, so that the target angle of the air deflector of the indoor unit is determined based on the comparison result.
Step 303, if the air flow rate of the target point in the space is less than or equal to the minimum air speed corresponding to the target point at the current fan motor rotation speed, determining the angle of the air deflector corresponding to the minimum air speed as the target angle.
And 304, if the air flow rate of the target point in the space is greater than or equal to the maximum air speed corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the maximum air speed as the target angle.
In step 305, if the air flow velocity of the target point in the space is greater than the minimum wind speed and less than the maximum wind speed, an interpolation calculation is performed based on the air flow velocity of the target point in the space, the minimum wind speed and the maximum wind speed to obtain a target angle.
That is, when the air velocity at the target point in the space is greater than the minimum wind velocity and less than the maximum wind velocity, interpolation calculation can be performed according to the air velocity at the target point in the space, the minimum wind velocity, and the maximum wind velocity to obtain the target angle. As an example, assuming that the current fan motor rotation speed is R1, the minimum wind speed corresponding to the current fan motor rotation speed R1 is V11, the angle of the air deflector corresponding to the minimum wind speed V11 is a11, the maximum wind speed corresponding to the current fan motor rotation speed R1 is V13, and the angle of the air deflector corresponding to the maximum wind speed V13 is a13, the target angle of the air deflector may be calculated by using the following interpolation calculation formula:
Figure BDA0002471252090000131
wherein A is a target angle; and V is the calculated air velocity of the target point in the space.
In order to realize the adjustment of a plurality of gear angles of the air deflector and enrich the diversified adjustment of the air deflector angle, a numerical interval formed by the minimum wind speed and the maximum wind speed can be divided into a plurality of flow speed reference value ranges under the current fan motor rotating speed through at least one flow speed intermediate value, and then interpolation calculation can be carried out between the most similar flow speed reference value ranges according to the air flow speed V of a target point in space to obtain the target angle. As an example of one possible implementation manner, as shown in fig. 3, the performing interpolation calculation based on the air velocity, the minimum wind velocity and the maximum wind velocity of the target point in the space may include:
step 401, determining a target flow speed reference value range in which the air flow speed of a target point in the space is located from a plurality of flow speed reference value ranges at the current fan motor rotation speed.
In an embodiment of the present invention, the plurality of flow speed reference value ranges are obtained by dividing a numerical interval consisting of the minimum wind speed and the maximum wind speed into a plurality of intervals by at least one flow speed intermediate value, and the flow speed intermediate value is greater than the minimum wind speed and less than the maximum wind speed. For example, taking the relation table shown in table 2 as an example, the numerical interval [ V11, V13] composed of the corresponding minimum V11 and maximum wind speed V13 at the current fan motor speed R1 may be divided into a plurality of flow speed reference value ranges by the flow speed intermediate value (e.g., V12, etc.), and [ V11, V13] may be divided into a plurality of flow speed reference value ranges, i.e., [ V11, V12], [ V12, V13] by the flow speed intermediate value V12.
In this step, during the interpolation calculation, a target flow velocity reference value range in which the air velocity of the target point in the space is located needs to be determined from a plurality of flow velocity reference value ranges at the current fan motor rotation speed. For example, assuming that the calculated airflow velocity V at the target point in the space is greater than V11 and less than V12, the target airflow velocity reference value range where the airflow velocity V at the target point in the space is located can be determined as [ V11, V12] as an example of the relationship table shown in table 2.
Step 402, determine a first air deflector operating angle corresponding to a first critical value in the target flow rate reference value range, and determine a second air deflector operating angle corresponding to a second critical value in the target flow rate reference value range.
That is, after the target flow velocity reference value range where the air flow velocity of the target point in the space is located is determined, the air deflector operation angle corresponding to the critical value can be found from the relationship table shown in the table 2 based on the critical value in the target flow velocity reference value range. For example, taking the target flow rate reference value range [ V11, V12] as an example, the first air deflector operation angle corresponding to the first threshold V11 in the target flow rate reference value range is a11, and the second air deflector operation angle corresponding to the second threshold V12 in the target flow rate reference value range is a 12.
In step 403, interpolation calculation is performed according to the air flow rate of the target point in the space, the first critical value, the second critical value, the first air deflector operation angle and the second air deflector operation angle to obtain a target angle.
That is, the target angle may be obtained by interpolating between the closest flow reference value ranges according to the air flow velocity of the target point in the space. For example, after obtaining the air flow rate, the first critical value, the second critical value, the first air deflector operation angle and the second air deflector operation angle of the target point in the space, the target angle for the air deflector can be calculated by using the following interpolation calculation formula (2):
Figure BDA0002471252090000141
wherein A is a target angle; and V is the calculated air velocity of the target point in the space.
Therefore, interpolation calculation is carried out between the most similar flow speed reference value ranges according to the air flow speed of the target point in the space, and then the air conditioner controller controls the calculated target angle A as the target value of the air deflector, so that the PMV value in the space is adjusted through the angle of the air deflector of the indoor unit, and the comfort level of a user is improved.
It should be noted that, if the types of the indoor unit air deflectors are different, the control of the air deflector angle will also be different. As an example of a possible implementation manner, the specific implementation process of correspondingly controlling the air deflector of the indoor unit according to the target angle may be as follows: when the air deflector of the indoor unit is an electrodeless adjusting air deflector, the air deflector of the indoor unit is correspondingly controlled according to a target angle; when the indoor unit air deflector is an extremely-adjustable air deflector, finding out the operation angle closest to the target angle from the operation angles of the first air deflector and the second air deflector, and correspondingly controlling the indoor unit air deflector according to the found operation angle closest to the target angle.
That is, when a target angle for an indoor unit air deflector is obtained, the type of the indoor unit air deflector needs to be determined first, and when the indoor unit air deflector is an electrodeless adjustable air deflector, the target angle obtained by calculation can be used as a target value of the indoor unit air deflector for control; when the indoor unit air deflector is an extremely-adjustable air deflector, the operating angle closest to the calculated target angle needs to be found from the existing gear angles to be used as the target value of the indoor unit air deflector for control. For example, taking the target flow speed reference value range [ V11, V12] in which the air flow speed V of the target point in the space of the current fan motor rotation speed R1 is located as an example, since the air flow speed V of the target point in the space is located between the flow speed reference value ranges [ V11, V12], the operation angle closest to the calculated target angle a needs to be found from the first air deflector operation angle a11 corresponding to the first critical value V11 and the second air deflector operation angle a12 corresponding to the second critical value V12, for example, assuming that the operation angle closest to the calculated target angle a is a12, the found operation angle a12 closest to the target angle a can be used as the target value of the air deflector for control. In one embodiment of the present invention, the operating angle closest to the calculated target angle a may be found by: and judging whether the difference value between the target angle A and the first air deflector operation angle A11 is smaller than or equal to the difference value between the second air deflector operation angle A12 and the target angle, or whether the target angle A is smaller than or equal to the average value between the first air deflector operation angle A11 and the second air deflector operation angle A12, if A-A11 is smaller than or equal to A12-A, or A is smaller than or equal to 0.5 (A11+ A12), the operation angle closest to the calculated target angle A is A11, and if A-A11 is larger than A12-A, or A is larger than 0.5 (A11+ A12), the operation angle closest to the calculated target angle A is A12. Therefore, the real situation of the air deflector of the indoor unit can be better met, and the PMV value in the space can be kept at a fixed target value as much as possible, so that the comfort level of a user is improved while energy-saving operation is carried out.
In order to make the air conditioner control flow more clearly understood by those skilled in the art, the following detailed description is provided.
For example, as shown in fig. 4, the air conditioner control method may include:
step 501, receiving a startup signal, collecting an initial temperature T0 in an air conditioner action space, and searching in the table 1 according to the initial temperature T0 in the air conditioner action space to obtain a target clothing thermal resistance C, a target metabolic rate M and a target average radiation temperature TF corresponding to the initial temperature T0.
Step 502, controlling an indoor unit air deflector to perform cooling or heating operation according to a preset position (or a preset angle) or a preset angle.
Step 503, in the process of controlling the angle of the air deflector of the indoor unit to perform cooling or heating operation according to a preset position (or a preset angle) or a set angle, acquiring a temperature T ring in an action space of the air conditioner in real time or periodically, and judging whether the detected current temperature T ring in the space reaches a target temperature T set (wherein the target temperature may be a certain set temperature), or judging whether a difference value Δ T between the temperature T ring in the space and the target temperature T set meets a condition, for example, when the air conditioner is in a cooling mode, Δ T is required to be less than or equal to TA; when the air conditioner is in a heating mode, the requirement that delta T is larger than or equal to TA is met, wherein TA is a target value.
Step 504, when it is judged that the current temperature T ring in the space reaches the target temperature T set, or the difference value Δ T between the temperature T ring in the space and the target temperature T set satisfies the condition, that is, when the air conditioner is in the cooling mode, it is required to satisfy Δ T not more than TA; when the air conditioner is in a heating mode, if delta T is required to be more than or equal to TA, the current air temperature T ring and the ambient humidity RH ring in the space can be collected and recorded.
Step 505, according to the target human thermal comfort evaluation index value PMV (for example, PMV is 0), the target clothing thermal resistance C, the target metabolic rate M, the target average radiation temperature TF, the current air temperature T-loop and the ambient humidity RH-loop, the most comfortable air flow velocity V at the target point in the space is calculated to be F1 (T-loop, RH-loop, C, M, TF, PMV).
And step 506, determining the current fan motor rotating speed, and calculating the target angle A of the air deflector of the indoor unit according to the calculated air flow velocity V of the target point in the space and the current fan motor rotating speed. For example, the corresponding angle a of the air deflector can be obtained by interpolation calculation based on the calculated air velocity V of the target point in the space and the nearest flow velocity reference value range.
And 507, comparing the calculated angle A with the lowest operation angle Amin of the air deflector and the highest operation angle Amax of the air deflector respectively. If A is less than or equal to Amin, taking Amin as the target value of the air deflector for control; if A is larger than or equal to Amax, taking Amax as the target value of the air deflector for control; if Amin < A < Amax, go to step 508.
And step 508, judging the type of the air deflector of the indoor unit. If the air deflector of the indoor unit is an electrodeless adjustable air deflector (or a continuous adjustable air deflector), the calculated angle A can be used as a target value of the air deflector for control; if the indoor unit air deflector is a polar-adjustment type air deflector, the process continues to step 509.
In step 509, the calculated difference between the angle a and the adjacent set angle is compared. For example, assuming that the adjacent set angles of the angle a are a11 and a12, if a is less than or equal to 0.5 (a11+ a12), controlling a11 as the target value of the indoor unit air deflector; if a >0.5 × (a11+ a12), a12 is controlled as the target value of the indoor unit air guide plate.
Step 510, in the process of controlling the operation of the air deflector of the indoor unit according to the target value, whether a difference value Δ T between the temperature T ring in the space and the set temperature meets the condition can be detected. If the air conditioner is in the cooling mode and the delta T is less than or equal to TA, or the air conditioner is in the heating mode and the delta T is more than or equal to TA, the heating and cooling requirements are met, and the step 504 can be executed in order to ensure that the air conditioner keeps continuous and comfortable operation; if the air conditioner is in the cooling mode and Δ T > TA, or if the air conditioner is in the heating mode and Δ T < TA, it indicates that the cooling and heating requirements of the user cannot be met, and at this time, the indoor unit air deflector needs to be controlled to perform cooling or heating operation according to a preset position (or a preset angle) or a preset angle, that is, the step 502 is returned to.
Therefore, the air conditioner control method provided by the embodiment of the invention firstly operates according to the set temperature when the air conditioner is started, and enters the angle control mode of the air deflector of the indoor unit after the set temperature is reached, so that the purpose of comfortable and energy-saving operation is achieved.
Corresponding to the air conditioner control methods provided in the foregoing embodiments, an embodiment of the present invention further provides an air conditioner control device, and since the air conditioner control device provided in the embodiment of the present invention corresponds to the air conditioner control methods provided in the foregoing embodiments, the embodiments of the air conditioner control method described above are also applicable to the air conditioner control device provided in this embodiment, and will not be described in detail in this embodiment. Fig. 5 is a schematic structural diagram of an air conditioner control device according to an embodiment of the present invention. As shown in fig. 5, the air conditioner control device 600 may include: the air flow rate control system comprises a parameter acquisition module 610, a temperature and humidity acquisition module 620, an air flow rate determination module 630 and an air deflector control module 640.
The parameter obtaining module 610 is used for obtaining target clothing thermal resistance, target metabolic rate and target average radiation temperature in the air conditioner acting space. As an example, the parameter obtaining module 610 obtains an initial temperature in the air conditioner action space, and obtains a target clothing thermal resistance, a target metabolic rate and a target average radiation temperature according to the initial temperature in the air conditioner action space.
The temperature and humidity acquiring module 620 is used for acquiring the temperature and humidity of the air in the space. As an example, the temperature and humidity acquisition module is specifically configured to: acquiring the temperature in an action space of the air conditioner; when the temperature in the air conditioner action space reaches a target temperature or the difference between the temperature in the air conditioner action space and the target temperature meets a target value, the temperature and the humidity of the air in the space are acquired.
The air flow rate determination module 630 is configured to determine an air flow rate of a target point in the space according to the target human thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, and the air temperature and humidity in the space. Wherein the target human thermal comfort evaluation index value is 0.
The air deflector control module 640 is used for controlling the operation state of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor. According to some embodiments of the present invention, the air deflection control module 640 may include a target angle determination unit and a control unit. The target angle determining unit is used for determining a target angle of an air deflector of the indoor unit according to the air flow rate of a target point in space and the current rotating speed of an indoor fan motor; the control unit is used for correspondingly controlling the air deflector of the indoor unit according to the target angle.
In some embodiments according to the invention, the target angle determination unit is specifically configured to: determining the maximum wind speed and the minimum wind speed corresponding to a target point under the current fan motor rotating speed according to the current rotating speed of the indoor fan motor; comparing the air velocity of a target point in the space with the maximum air velocity and the minimum air velocity corresponding to the target point under the current fan motor rotating speed; if the air flow rate of the target point in the space is less than or equal to the minimum air speed corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the minimum air speed as a target angle; if the air flow rate of a target point in the space is greater than or equal to the maximum air speed corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the maximum air speed as a target angle; and if the air velocity of the target point in the space is greater than the minimum wind speed and less than the maximum wind speed, performing interpolation calculation based on the air velocity of the target point in the space, the minimum wind speed and the maximum wind speed to obtain a target angle.
In some embodiments according to the invention, the target angle determination unit is specifically configured to: determining a target flow speed reference value range in which the air flow speed of a target point in a space is located from a plurality of flow speed reference value ranges at the current fan motor rotating speed; the flow speed reference value ranges are obtained by dividing a numerical interval consisting of the minimum wind speed and the maximum wind speed into a plurality of intervals through at least one flow speed intermediate value, and the flow speed intermediate value is larger than the minimum wind speed and smaller than the maximum wind speed; determining a first air deflector operation angle corresponding to a first critical value in a target flow speed reference value range, and determining a second air deflector operation angle corresponding to a second critical value in the target flow speed reference value range; and carrying out interpolation calculation according to the air flow velocity of the target point in the space, the first critical value, the second critical value, the first air deflector operation angle and the second air deflector operation angle to obtain a target angle.
According to some embodiments of the invention, the control unit is specifically configured to: when the air deflector of the indoor unit is an electrodeless adjusting air deflector, the air deflector of the indoor unit is correspondingly controlled according to a target angle; when the air deflector of the indoor unit is an extremely-adjustable air deflector, finding out the operation angle closest to the target angle from the operation angles of the first air deflector and the second air deflector, and correspondingly controlling the air deflector of the indoor unit according to the found operation angle closest to the target angle.
According to the air conditioner control device provided by the embodiment of the invention, the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature can be obtained in the air conditioner action space through the parameter obtaining module, the temperature and humidity obtaining module obtains the air temperature and humidity in the space, the air flow rate determining module determines the air flow rate of a target point in the space according to the target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, the air temperature and humidity in the space, and the air deflector control module controls the running state of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor. Therefore, the air flow rate in the space is calculated through the target human body thermal comfort evaluation index value and the influence factors (such as clothing thermal resistance, metabolic rate, average radiation temperature, air temperature and humidity in the space) of the index value, and then the angle of the air deflector of the indoor unit is adjusted based on the air flow rate and the current rotating speed of the indoor fan motor, so that the room air is kept in a continuous comfortable state, the air conditioner can be kept in continuous comfortable and energy-saving operation, the heating and cooling requirements of a user are guaranteed, and meanwhile the comfort of the user can be improved.
In order to realize the embodiment, the invention further provides an air conditioner. As an example of one possible implementation, the air conditioner may include: an indoor unit air deflector; an indoor fan motor; the temperature sensor is used for collecting the air temperature in the air conditioner acting space; the humidity sensor is used for acquiring the humidity in the air conditioner acting space; at least one processor; a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the air conditioner control method according to any one of the embodiments.
It should be noted that the indoor unit air deflector may include a transverse air deflector and a longitudinal air deflector. For example, as shown in fig. 6, a horizontal louver 71 extending long in the left-right direction is provided at the outlet of the indoor unit, and the horizontal louver 71 is rotatably attached to the indoor unit casing. The lateral air plates 71 can be independently rotated about a rotation center extending to the left and right by the lateral air plate drive motor. The transverse air vane drive motor is controlled by the processor. The lateral air blades 71 can adjust the vertical direction of the air blown out from the air outlet. As shown in fig. 7, a vertical air plate 81 having a plane intersecting the left-right direction is provided in the depth of the air outlet. The vertical air blades 81 can be rotated left and right about a rotation center extending in the vertical direction (direction intersecting the left and right direction) by the vertical air blade driving motor. The motor for driving the longitudinal air plates 81 is also controlled by the processor. The vertical louvers 81 adjust the direction of the air blown out from the air outlet in the left-right direction. As shown in fig. 7, the indoor fan 82 is located at a substantially central portion inside the indoor unit casing. The indoor fan 82 is a cross-flow fan having a substantially cylindrical shape elongated in the longitudinal direction (left-right direction) of the indoor unit. By rotationally driving the indoor fan 82, the conditioned air generated by the air being sucked from the suction port, passing through the air filter, and then passing through the indoor heat exchanger is blown out from the discharge port into the room. The indoor fan 82 rotates in accordance with the rotation speed of the indoor fan motor, and the larger the rotation speed, the larger the volume of conditioned air blown out from the outlet port. From this, can find out the angle of the horizontal aerofoil that corresponds under the current fan motor rotational speed and vertical aerofoil through the air flow rate that obtains of calculation, and then control horizontal aerofoil and vertical aerofoil based on the angle of finding to make the air keep lasting comfortable state, thereby can keep the air conditioner to last comfortable and energy-conserving operation, when guaranteeing the user heating refrigeration demand, can also promote user's comfort level.
In order to achieve the above embodiments, the present invention also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the air conditioner control method according to any of the above embodiments.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be stored in a computer readable storage medium, and the program may be executed by a computer to instruct the relevant hardware, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air conditioner control method, comprising:
in an air conditioner action space, acquiring target clothing thermal resistance, target metabolic rate and target average radiation temperature;
acquiring the temperature and humidity of the air in the space;
determining the air flow rate of a target point in the space according to the target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature, and the air temperature and humidity in the space;
and controlling the running state of an air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotating speed of the indoor fan motor.
2. The method as claimed in claim 1, wherein the controlling the operation state of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotation speed of the indoor fan motor comprises:
determining a target angle of an air deflector of the indoor unit according to the air flow rate of a target point in the space and the current rotating speed of an indoor fan motor;
and correspondingly controlling the air deflector of the indoor unit according to the target angle.
3. The method as claimed in claim 2, wherein the determining the target angle of the air deflector of the indoor unit according to the air flow rate of the target point in the space and the current rotation speed of the indoor fan motor comprises:
determining the maximum wind speed and the minimum wind speed corresponding to the target point under the current fan motor rotating speed according to the current rotating speed of the indoor fan motor;
comparing the air flow rate of the target point in the space with the maximum wind speed and the minimum wind speed corresponding to the target point at the current fan motor rotating speed;
if the air flow velocity of the target point in the space is smaller than or equal to the minimum air velocity corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the minimum air velocity as the target angle;
if the air flow velocity of the target point in the space is larger than or equal to the maximum air speed corresponding to the target point under the current fan motor rotating speed, determining the angle of the air deflector corresponding to the maximum air speed as the target angle;
and if the air velocity of the target point in the space is greater than the minimum wind velocity and less than the maximum wind velocity, performing interpolation calculation based on the air velocity of the target point in the space, the minimum wind velocity and the maximum wind velocity to obtain the target angle.
4. The air conditioner control method according to claim 3, wherein the interpolating based on the air flow velocity of the target point in the space, the minimum wind speed, and the maximum wind speed to obtain the target angle comprises:
determining a target flow speed reference value range in which the air flow speed of a target point in the space is located from a plurality of flow speed reference value ranges under the current fan motor rotating speed; wherein the plurality of flow speed reference value ranges are obtained by dividing a numerical interval consisting of the minimum wind speed and the maximum wind speed into a plurality of intervals through at least one flow speed intermediate value, and the flow speed intermediate value is greater than the minimum wind speed and less than the maximum wind speed;
determining a first air deflector operation angle corresponding to a first critical value in the target flow speed reference value range, and determining a second air deflector operation angle corresponding to a second critical value in the target flow speed reference value range;
and carrying out interpolation calculation according to the air flow velocity of the target point in the space, the first critical value, the second critical value, the first air deflector operation angle and the second air deflector operation angle to obtain the target angle.
5. The air conditioner control method according to claim 4, wherein the controlling the indoor unit air deflector accordingly according to the target angle comprises:
when the indoor unit air deflector is an electrodeless adjusting type air deflector, correspondingly controlling the indoor unit air deflector according to the target angle;
when the indoor unit air deflector is an air deflector with an adjustable pole, finding out the operation angle closest to the target angle from the operation angles of the first air deflector and the second air deflector, and correspondingly controlling the indoor unit air deflector according to the found operation angle closest to the target angle.
6. The air conditioner control method according to any one of claims 1-5, wherein said obtaining a target clothing thermal resistance, a target metabolic rate, and a target average radiation temperature comprises:
acquiring the initial temperature in the air conditioner acting space;
and acquiring the target clothing thermal resistance, the target metabolic rate and the target average radiation temperature according to the initial temperature in the air conditioner action space.
7. The air conditioner control method according to any one of claims 1-5, wherein said obtaining the air temperature and humidity in the space includes:
acquiring the temperature in the air conditioner acting space;
and when the temperature in the air conditioner acting space reaches a target temperature or the difference between the temperature in the air conditioner acting space and the target temperature meets a target value, acquiring the temperature and the humidity of the air in the space.
8. The air conditioner control method according to any one of claims 1 to 5, wherein the target human thermal comfort evaluation index value is 0.
9. An air conditioner control device, comprising:
the parameter acquisition module is used for acquiring target clothing thermal resistance, target metabolic rate and target average radiation temperature in the air conditioner action space;
the temperature and humidity acquisition module is used for acquiring the temperature and humidity of the air in the space;
the air flow rate determining module is used for determining the air flow rate of a target point in the space according to a target human body thermal comfort evaluation index value, the target clothing thermal resistance, the target metabolic rate, the target average radiation temperature and the air temperature and humidity in the space;
and the air deflector control module is used for controlling the running state of the air deflector of the indoor unit according to the air velocity of the target point in the space and the current rotating speed of the indoor fan motor.
10. An air conditioner, comprising:
an indoor unit air deflector;
an indoor fan motor;
the temperature sensor is used for collecting the air temperature in the air conditioner acting space;
the humidity sensor is used for acquiring the humidity in the air conditioner acting space;
at least one processor;
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the air conditioner control method of any one of claims 1-8.
CN202010349005.0A 2020-04-28 2020-04-28 Air conditioner and control method and control device thereof Active CN111486542B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112254287A (en) * 2020-09-01 2021-01-22 深圳达实智能股份有限公司 Variable-weight multi-model comprehensive prediction central air conditioner tail end air supply control method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4735377B2 (en) * 2006-04-04 2011-07-27 パナソニック株式会社 Operation method of air conditioner
CN106016620A (en) * 2016-06-15 2016-10-12 湖南大学 Energy saving thermal comfort control method of air conditioning system
CN107120813A (en) * 2017-06-29 2017-09-01 广东美的制冷设备有限公司 Air conditioner air blowing control method, electronic equipment and computer-readable recording medium
CN109373536A (en) * 2018-10-26 2019-02-22 广东美的制冷设备有限公司 Control device, air conditioner and its control method and readable storage medium storing program for executing of air conditioner
CN109405222A (en) * 2018-10-26 2019-03-01 美的集团武汉制冷设备有限公司 Air-out control method, control device, air conditioner and the storage medium of air conditioner
CN109654689A (en) * 2018-12-24 2019-04-19 美的集团武汉制冷设备有限公司 The control method and air conditioner of air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4735377B2 (en) * 2006-04-04 2011-07-27 パナソニック株式会社 Operation method of air conditioner
CN106016620A (en) * 2016-06-15 2016-10-12 湖南大学 Energy saving thermal comfort control method of air conditioning system
CN107120813A (en) * 2017-06-29 2017-09-01 广东美的制冷设备有限公司 Air conditioner air blowing control method, electronic equipment and computer-readable recording medium
CN109373536A (en) * 2018-10-26 2019-02-22 广东美的制冷设备有限公司 Control device, air conditioner and its control method and readable storage medium storing program for executing of air conditioner
CN109405222A (en) * 2018-10-26 2019-03-01 美的集团武汉制冷设备有限公司 Air-out control method, control device, air conditioner and the storage medium of air conditioner
CN109654689A (en) * 2018-12-24 2019-04-19 美的集团武汉制冷设备有限公司 The control method and air conditioner of air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112254287A (en) * 2020-09-01 2021-01-22 深圳达实智能股份有限公司 Variable-weight multi-model comprehensive prediction central air conditioner tail end air supply control method

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