CN106196490B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN106196490B CN106196490B CN201610625617.1A CN201610625617A CN106196490B CN 106196490 B CN106196490 B CN 106196490B CN 201610625617 A CN201610625617 A CN 201610625617A CN 106196490 B CN106196490 B CN 106196490B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000017525 heat dissipation Effects 0.000 claims abstract description 105
- 230000005855 radiation Effects 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims description 24
- 230000035807 sensation Effects 0.000 claims description 22
- 238000005057 refrigeration Methods 0.000 claims description 20
- 230000007613 environmental effect Effects 0.000 claims description 15
- 238000002474 experimental method Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013021 overheating Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 12
- 238000012937 correction Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000037323 metabolic rate Effects 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- XGFJCRNRWOXGQM-UHFFFAOYSA-N hot-2 Chemical compound CCSC1=CC(OC)=C(CCNO)C=C1OC XGFJCRNRWOXGQM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an air conditioner control method, which comprises the following steps: the method comprises the steps of obtaining the radiation temperature in a room, the temperature value of the surface of a human body and the air temperature value near the human body, obtaining first heat dissipation capacity of the human body through the difference value of the surface temperature value of the human body and the radiation temperature in the room, obtaining second heat dissipation capacity of the human body through the air temperature value near the human body, obtaining the heat dissipation capacity of the human body through the first heat dissipation capacity and the second heat dissipation capacity, obtaining the cold and hot feeling state of the human body through the heat dissipation capacity of the human body, and controlling the air conditioner to operate according to the cold and hot feeling state. The invention also discloses an air conditioner. The invention automatically adjusts the operation parameters of the air conditioner through the current cold and hot feeling state value of the human body, so that the human body is in a comfortable state, and the problem of discomfort caused by overcooling or overheating caused by manually adjusting the operation parameters of the air conditioner by a user is solved.
Description
Technical Field
The invention relates to the field of air conditioning equipment, in particular to an air conditioner control method and an air conditioner.
Background
Generally, the air conditioner performs cooling or heating operation by adjusting parameter values such as temperature or wind speed preset by a user, and the preset parameters of the user are only set according to the past habits of the user and are not adjustment parameters really suitable for the user. For example, some users set a relatively low temperature such as 20 ℃ in a relatively hot environment, and the room temperature rapidly decreases after a certain period of time, so that the users feel relatively cool, and then adjust the set temperature of the air conditioner to be high, which causes discomfort to the users. And when the user is in different positions in the room, the cooling or heating effect of the air conditioner felt by the user is different due to different positions of the air outlet which is far away from the air conditioner. Therefore, if the air conditioners are operated according to the same adjustment parameter, the phenomenon of supercooling or overheating may occur, which may cause discomfort to users, and thus, the user experience effect of the air conditioners may be reduced.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, and aims to solve the technical problem that the air conditioner runs according to air conditioner adjusting parameters set by a user, so that overcooling or overheating is caused, and discomfort is caused to the user.
In order to achieve the above object, the present invention provides an air conditioner control method, comprising:
acquiring radiation temperature in a room and a temperature value of the surface of a human body;
acquiring an air temperature value near a human body;
obtaining a first heat dissipation capacity of the human body according to the difference value of the surface temperature value of the human body and the radiation temperature in the room, and obtaining a second heat dissipation capacity of the human body according to the air temperature value near the human body;
obtaining the cold and hot feeling state of the human body according to the first heat dissipation capacity of the human body and the second heat dissipation capacity of the human body;
and controlling the air conditioner to operate according to the cold and heat feeling state.
Preferably, the step of acquiring the air temperature value near the human body includes:
when the air conditioner operates in a refrigeration mode, detecting the position of a human body, detecting the operation wind speed value and the environment temperature value of the air conditioner, and acquiring the air temperature value near the human body according to the position of the human body, the operation wind speed value and the environment temperature value.
Preferably, the step of acquiring the air temperature value near the human body includes:
when the air conditioner operates in a heating mode, detecting an air conditioner operation air speed value and an environment temperature value, and acquiring an air temperature value near a human body according to the air conditioner operation air speed value and the environment temperature value.
Preferably, the method further comprises the following steps of after obtaining the cold and hot feeling state of the human body according to the heat dissipation capacity of the human body:
when the air conditioner runs in a refrigeration mode, detecting an environmental temperature value, and correcting the cold and hot feeling state according to the environmental temperature value.
Preferably, the step of controlling the operation of the air conditioner according to the cold and hot feeling state includes:
and controlling one or more of the set temperature, the operating wind speed and the air guide bar parameters of the air conditioner according to the cold and hot feeling state.
In order to achieve the above object, the present invention also provides an air conditioner, comprising:
the temperature detection module is used for detecting the radiation temperature in the room and the temperature value of the surface of the human body;
the air temperature detection module is used for detecting the air temperature value near the human body;
the cold and heat feeling acquisition module is used for acquiring a first heat dissipation capacity of the human body according to the difference value between the surface temperature value of the human body and the radiation temperature in the room, acquiring a second heat dissipation capacity of the human body according to the air temperature value near the human body, acquiring the heat dissipation capacity of the human body according to the first heat dissipation capacity and the second heat dissipation capacity of the human body, and acquiring the cold and heat feeling state of the human body according to the heat dissipation capacity of the human body;
and the control module controls the air conditioner to operate according to the cold and heat feeling state.
Preferably, the step of acquiring the air temperature value near the human body includes:
when the air conditioner operates in a refrigeration mode, detecting the position of a human body, detecting an operating wind speed value and an environment temperature value of the air conditioner, and acquiring an air temperature value near the human body according to the position of the human body, the operating wind speed value and the environment temperature value;
preferably, the step of acquiring the air temperature value near the human body includes:
when the air conditioner operates in a heating mode, detecting an operating wind speed value and an environment temperature value of the air conditioner, and acquiring an air temperature value near a human body according to the operating wind speed value and the environment temperature value of the air conditioner;
preferably, the method further comprises the following steps of after obtaining the cold and hot feeling state of the human body according to the heat dissipation capacity of the human body:
when the air conditioner operates in a refrigeration mode, detecting an environmental temperature value, and correcting a cold and hot feeling state according to the environmental temperature value;
preferably, the step of controlling the operation of the air conditioner according to the cold and hot feeling state includes:
and controlling one or more of the set temperature, the operating wind speed and the air guide bar parameters of the air conditioner according to the cold and hot feeling state.
According to the invention, the radiation temperature in the room, the temperature value on the surface of the human body and the air temperature value near the human body are obtained, the first heat dissipation capacity of the human body is obtained through the difference value between the surface temperature value of the human body and the radiation temperature in the room, the second heat dissipation capacity of the human body is obtained through the air temperature value near the human body, the heat dissipation capacity of the human body is obtained through the first heat dissipation capacity and the second heat dissipation capacity, the cold and hot feeling state of the human body is obtained through the heat dissipation capacity of the human body, and finally the set temperature, the running wind speed and the wind guide strip state of the air conditioner are adjusted through the cold and hot feeling state of the human body, so that the air conditioner can automatically adjust the parameters influencing the cold and hot feeling of the user according to the cold and hot feeling state of the human body, the.
Drawings
FIG. 1 is a schematic flow chart illustrating a control method of an air conditioner according to a first embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method of an air conditioner according to a second embodiment of the present invention;
FIG. 3 is a schematic view of the infrared array sensor of the present invention detecting the position of a human body in the up-down direction;
FIG. 4 is a schematic diagram of an infrared array sensor of the present invention detecting the position of a human body in the left-right direction;
FIG. 5 is a distribution diagram of the area of the human body in the room according to the present invention;
FIG. 6 is a functional block diagram of an embodiment of an air conditioner of the present invention;
fig. 7 is a schematic thermal image of an infrared array sensor scanning an object according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An air conditioner control method and an air conditioner according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
First, a method for controlling an air conditioner according to an embodiment of the present invention will be described. Fig. 1 is a flowchart illustrating an air conditioner control method according to an embodiment of the present invention. As shown in fig. 1, the air conditioner control method according to the embodiment of the present invention includes the steps of:
and step S10, acquiring the radiation temperature value in the room and the temperature value of the surface of the human body.
The temperature of the human body surface is the temperature value of the human body surface, and the radiation temperature is the temperature of the radiation effect of the surface around the environment on the human body. Taking a person in a room as an example, at this time, the radiation temperature is a temperature value of a surrounding environment in the room, such as surrounding walls, windows, and the like, which has a function of measuring a thermal image, and the two temperature values can be obtained by measuring and reading the temperature values by using sensors having the function of measuring the thermal image, for example, an array type infrared sensor module, in which a thermal image can be obtained when an infrared sensor scans a human body or the surrounding environment, as shown in fig. 7, the thermal image can obtain a temperature value of each small area, i.e., one of pixels, by an array arrangement manner, as shown in fig. 7, the color shade of each pixel represents the difference in the temperature values, and a specific temperature value of each. When the thermal infrared sensor scans a human body, a thermal image of a certain area can be obtained, because the temperatures of all the parts on the surface of the human body are different, the corresponding thermal images are also different, and therefore the temperature of the surface of the human body can be measured by measuring the temperature points of all the pixels of the thermal image corresponding to the human body and obtaining the average value, namely the average temperature value of the surface of the human body represents the surface temperature value of the human body. The radiation temperature in the room is measured by scanning a thermal image formed by surrounding areas such as walls, ceilings and windows in the room through an infrared sensor, removing a part of the thermal image where a human body is located, reading temperature values of all pixels of the remaining part of the thermal image, and then averaging to obtain a radiation temperature value in the room, namely, the average radiation temperature value in the room represents the radiation temperature value in the room.
Step S20, an air temperature value near the human body is acquired.
The ambient temperature value can be detected by the air conditioner in a room, the ambient temperature value is generally detected by a temperature sensor arranged on the air conditioner, in order to obtain the air temperature value near the human body in the room according to the ambient temperature value detected by the air conditioner, the air temperature value needs to be considered by combining the specific refrigerating and heating running states of the air conditioner, because the air speed of the refrigerating and heating air supply has different influences on the air temperature near the human body, the air temperature near the human body is greatly influenced by the position of the human body in the room when the air is supplied in a refrigerating mode, the influence on the position of the human body in the room when the air is supplied in a heating mode is small, and different influence factors need to be considered by specifically combining the refrigerating and heating modes of the air conditioner in order to obtain the air temperature near the.
The rule for specifically acquiring the air temperature value near the human body is as follows:
and under the refrigeration mode, detecting the position of a human body, detecting the operation wind speed value and the environment temperature value of the air conditioner, and acquiring the air temperature value near the human body according to the position of the human body, the operation wind speed value and the environment temperature value of the air conditioner.
Further, when the position of the human body is detected, the position of the human body is determined by detecting the position angle of the human body in the left-right direction by an infrared sensor arranged on the air conditioner and the position angle of the human body and the infrared sensor in the up-down direction.
The array type infrared sensor module can read radiation temperature values in a room and temperature values on the surface of a human body, and the position of the human body in the room can be obtained through the array type infrared sensor module. The position of the human body in the room can be determined through two parameters based on the measured value of the array type infrared sensor module, wherein the two parameters are firstly based on the position parameters of the array type infrared sensor module for measuring the human body in the upper and lower directions; in addition, the array-type infrared sensor module is used for measuring the position parameters of the human body in the left and right directions.
Fig. 3 is a schematic diagram showing the array infrared sensor module measuring the position parameters of the human body in the up-down direction, in which fig. 1 is an air conditioner, fig. 2 is the array infrared sensor module installed on the air conditioner, fig. 3 is the position of the human body, fig. 4 is the wall around the room, fig. 5 is the ground, the array infrared sensor module can detect the size of the included angle between the connection line with the position of the human body in the up-down direction and the wall surface fixed by the air conditioner installed with the array infrared sensor module, i.e. the included angle θ between the connection line L between the array infrared sensor module and the position of the human body and the line H vertically parallel to the wall surface of the fixed air conditioner, and because the installation height of the air conditioner is a fixed value, i.e. H in the figure is a fixed value, the value can be obtained by measuring the height of the air conditioner after the air conditioner is installed by the user and inputting the measured value into the control interface of the air conditioner, or can be roughly estimated, so that the size of W can be obtained by the trigonometric function formula, i.e. W ＊ tan θ, i..
Fig. 4 is a schematic diagram showing an array type infrared sensor module measuring position parameters of a human body in the left-right direction, where 1 is an air conditioner, 2 is an array type infrared sensor module installed on the air conditioner, 3 is a human body, 4 is a wall around a room, a1 and a2 are different position points where the human body is located, the maximum viewing angle of the array type infrared sensor module in the left-right direction, which can scan and detect the range of the surrounding environment and objects, is fixed, as shown in the diagram, an included angle b3 formed by lines L and L is the maximum viewing angle where the array type infrared sensor module can detect the surrounding environment and objects in the left-right direction, when a human body is located at different positions in the room, as shown in the diagram, a1 and a2 points, the position of the array type infrared sensor module in the left-right direction, which is located at the maximum viewing angle range, can be detected and determined by the array type infrared sensor module, as the lines L and L are fixed, the connection line determined by the array type infrared sensor module and the connection line between the two sides of the detected line can be obtained by determining the size of the included angle b of the connection line between the connection line 3723 and the connection line between the array type infrared sensor module and the vertical line between the detected line of the detected human body, and the detected line of the array type infrared sensor module, and the connection line can be determined by the connection line of the array type infrared sensor module, and the connection line of the detected module, and the detected line of the detected left side of the detected module, and the detected line of the detected module, as a 638, and the detected line of.
The position of the human body in a room can be determined by measuring the position parameters of the human body in the up-down direction and the position parameters of the human body in the left-right direction of the array type infrared sensor module.
The position of the human body is determined according to the area of the human body in the room, and then the air temperature value near the human body in the refrigeration mode can be determined according to the running air speed value and the environment temperature value of the air conditioner. According to experiments, when the position of a human body is closer to the position opposite to the air conditioner, the deviation between the air temperature value near the human body and the ambient temperature value is larger; when the position of the human body is farther away from the position opposite to the air conditioner, the deviation between the air temperature value near the human body and the environment temperature value is smaller. When the air conditioner runs at a higher wind speed value, the deviation between the air temperature value near the human body and the environment temperature value is smaller; when the air conditioner is operated at a lower wind speed value, the deviation between the air temperature value near the human body and the environment temperature value is larger.
Specifically, the space in the room may be divided into a plurality of areas according to the position of the human body in the room, as shown in fig. 5, the area in the room is divided into a to E5 areas, where the area C is an area relatively close to the facing position of the air conditioner. The operation wind speed value of the air conditioner is divided into a plurality of grades F from small to large, and each grade has a corresponding operation wind speed value. In this embodiment, the air temperature value near the human body may be determined according to the room division region and the relationship between the level of the operating wind speed and the air temperature value near the human body. For example:
the above table shows that, if the human body is located in different areas of the room when the air conditioner operates at a certain wind speed level, such as 60, it can be seen that the difference between the air temperature value of the area C, where the human body is relatively close to the opposite position of the air conditioner, and the ambient temperature value is the largest, and the difference between the air temperature values of the other A, B, D, E areas and the ambient temperature value is the smallest. For example, when the human bodies are all located in the same area, such as the area C, the deviation value between the air temperature value near the human body and the environment temperature value corresponding to the operation wind speed of the air conditioner is smaller when the operation wind speed is 100 grade than that of the air conditioner corresponding to the operation wind speed of 80 grade. After the current area where the human body is located and the current operating wind speed value of the air conditioner are obtained, the air temperature value near the human body can be obtained according to the relation in the table.
In the heating mode, when the air temperature value near the human body is detected, the position relation with the human body is very small, so that the parameter does not need to be considered, the operation wind speed value of the air conditioner is newly influenced by the air temperature near the human body in the heating mode, the human body is sensitive to hot wind in the heating mode compared with cold wind in the cooling mode, and the difference of the hot wind speed in different sizes is obvious, so that the fixed calculation rule is not suitable for obtaining the air temperature value near the human body according to the environment temperature value T1, and the different calculation is needed according to different wind speed intervals. For example, the wind speed may be divided into 100 levels from small to large according to the operating wind speed value of the air conditioner, and the 100 levels are divided into 10 intervals, and each interval adopts a different calculation rule:
wherein Ta is the temperature value of air near the human body, T1 is the temperature value of environment, and c1, c2, c3, c4, c5 and c6 are positive values and are different from each other.
According to experiments, when the wind speed is higher, the difference between the air temperature near the human body and the ambient temperature is smaller, and when the wind speed is lower, the difference between the air temperature near the human body and the ambient temperature is larger, that is, the above-mentioned size relationship of c1, c2, c3, c4, c5 and c6 is: c1 > c2 > c3 > c4 > c5 > c6, for example, the table above lists specific values of c1, c2, c3, c4, c5, c6 as follows:
| interval of wind speed | Calculation rule |
| [1，10] | Ta＝T1－11 |
| [11，30] | Ta＝T1－9.3 |
| [31，50] | Ta＝T1－8.4 |
| [51，70] | Ta＝T1－4.1 |
| [71，90] | Ta＝T1－2.4 |
| [91，100] | Ta＝T1－0.9 |
And step S30, obtaining a first heat dissipation capacity of the human body according to the difference value between the surface temperature value of the human body and the radiation temperature in the room, obtaining a second heat dissipation capacity of the human body according to the air temperature value near the human body, and obtaining the heat dissipation capacity of the human body according to the first heat dissipation capacity and the second heat dissipation capacity of the human body.
According to the first law of thermodynamics, the heat dissipation generated by the human body is basically equal to the heat consumed by the human body, so that the heat dissipation of the human body can be obtained by measuring the heat consumed by the human body, and the heat consumed by the human body can be calculated by the following formula:
H＝H1+H2
wherein H1 ═ phi (Tcl-Tax)
H2＝A1＊Mh＊(A2－Ta)
H1 is a first heat dissipation capacity of the human body, mainly related to Tcl and Tax, Tcl is a temperature value of the surface of the human body, Tax is a radiation temperature value, Φ is an additional calculation coefficient, which are some common calculation coefficients in the field of human thermal comfort research, such as an effective radiation area coefficient f _ eff considering the surrounding environment, a human body area coefficient f _ cl of the dressing, Φ ═ f _ eff ＊ f _ cl, when H1 ═ f ＊ f _ cl ＊ (Tcl-Ta), a first heat dissipation capacity H1 of the human body is obtained by calculating a difference between the temperature value Tcl of the surface of the human body and the radiation temperature Ta and combining the calculation coefficient Φ, H2 is a second heat dissipation capacity of the human body, H2 is calculated mainly related to a human body metabolic rate Mh and an air temperature value near the human body, wherein the human body metabolic rate Mh is related to the human body, the heat dissipation capacities of different ages such as aged people and aged people such as young people are determined by a, a fixed heat dissipation capacity H1 and a total heat dissipation capacity H3876 is obtained by calculating the second heat dissipation capacity of the human body.
And step S40, obtaining the cold and hot feeling state of the human body according to the heat dissipation capacity of the human body.
The cold and heat feeling state of the human body can be embodied by specific different values as follows:
| state value of cold and heat feeling | Interval of cold and heat feeling | Thermal comfort |
| －3≤M＜－2 | Interval 8 | Cold |
| －2＜M≤－1 | Interval 7 | Is somewhat cooled |
| －1＜M≤0.5 | Interval 6 | Cool down |
| －0.5≤M＜0 | Interval 5 | Comfort of the wearer |
| 0≤M≤0.5 | |
Comfort of the wearer |
| 0.5＜M≤1 | |
Heating device |
| 1＜M≤2 | |
Is a little bit hot |
| 2＜M≤3 | Interval 1 | Heat generation |
In the above table, the value of the state of cold and heat feeling M is divided into 8 sections, which respectively represent different heat comfort feelings of the human body, wherein the section 5 is a slightly cool comfort feeling, and the section 6 is a slightly warm comfort feeling.
Because the human body thermal sensation state is related to the heat consumed by the human body, and the heat consumed by the human body is equal to the heat dissipation capacity of the human body, the human body thermal sensation state is reflected by the heat dissipation capacity of the human body, the thermal sensations of different users are subjected to experience tests in the early-stage air conditioner research and development process, and the relational expression between the thermal sensation state value M and the heat dissipation capacity H can be obtained through a fitting formula according to the heat dissipation capacity values under different thermal sensations calculated at that time, for example, the relational expression between the thermal sensation state value M and the heat dissipation capacity H can be expressed as follows:
M＝a0+a1H+a2H2+a3H3+.....+anHn
wherein a0, a1, a2, a3 and an are different calculation coefficient values obtained according to experiments, N is a positive value, and the value of the positive value is determined according to a forming fitting formula between specific H and M data groups, and if N can be 4. Through the relational expression between the human body cold and heat feeling value M and the heat dissipation capacity H in the above formula, after the heat dissipation capacity H of the human body is obtained through calculation, the human body cold and heat feeling state value M is obtained by substituting the above formula. It should be noted that the fitting formula is only used to illustrate that a certain relationship exists between the human body cold and heat feeling value and the heat dissipating capacity, and the scope of the present invention is not limited, and other fitting formulas can be obtained by fitting the H and M data sets according to other fitting methods in the early experimental process.
And step S50, controlling the air conditioner to operate according to the cold and hot feeling state.
The operation parameters of the air conditioner are controlled according to the state value of the human body cold and heat feeling, so that the state value of the human body cold and heat feeling is changed to a comfortable interval, the operation parameters of the air conditioner comprise one or more of set temperature, operation wind speed and air guide strip state, for example, when the current state value of the human body cold and heat feeling is 2.5 in the interval 1, namely, the human body cold and heat feeling is in a hot feeling, the set temperature of the current air conditioner is reduced when the set temperature of the automatic air conditioner is passed, so that the environmental temperature in a room is reduced, the state value of the human body cold and heat feeling is gradually reduced, and finally, the state of the human body cold and heat feeling is kept in the interval 4, so.
According to the air conditioner control method, the first heat dissipation capacity of the human body is obtained by obtaining the surface temperature of the human body and the radiation temperature value in a room, the second heat dissipation capacity of the human body is obtained by detecting the air temperature value near the human body, the heat dissipation capacity value of the human body is obtained according to the first heat dissipation capacity of the human body and the second heat dissipation capacity of the human body, the current cold and hot feeling state value of the human body is further obtained according to the heat dissipation capacity value of the human body, the accuracy of the cold and hot feeling state value obtained by the method is high, the cold and hot feeling state is further corrected according to the refrigeration or heating mode of the air conditioner operation after the cold and hot feeling state value is obtained, the cold and hot feeling state value of the human body is more accurately suitable for different temperature environments of the current air conditioner operation, and finally, the operation parameters of the air conditioner are automatically adjusted according to the current cold and hot feeling state, the discomfort of overcooling or overheating caused by the manual adjustment of the operating parameters of the air conditioner by a user is solved.
Further, referring to fig. 2, fig. 2 is a schematic flowchart of a control method of an air conditioner according to another embodiment of the present invention, and based on the above first embodiment of the control method of the air conditioner of the present invention, in this embodiment, after step S40, the method further includes:
step S401, when the air conditioner runs in the refrigeration mode, detecting an environmental temperature value, and correcting a cold and hot feeling state value according to the temperature value.
After the human body cold and heat feeling state value is calculated according to the heat dissipation capacity, if the air conditioner operates in a refrigeration mode, the cold and heat feeling state value can be further corrected according to the detected environmental temperature value.
The specific adjustment rules are as follows:
the ambient temperature value T1 detected by the air conditioner is obtained, and the thermal sensation state value M is corrected according to the value of the ambient temperature value T1, for example, it can be corrected by a formula, such as:
M＝aT13+b T12+c T1+d
wherein a, b, c, d are different calculated coefficient values.
Or the temperature range may be divided into different temperature ranges according to the ambient temperature value T1, and the thermal sensation state value M may be modified differently according to the different temperature ranges, such as:
when a1 is more than T1 and less than or equal to a2, M is M + b1
When a2 is more than T1 and less than or equal to a3, M is M + b2
When T1 is greater than a4, M is M + b3
Wherein a1 < a2 < a3, b1, b2, b3 are different correction values, for example, the specific correction values may be as follows:
m-1 at the temperature of more than 18 ℃ and less than or equal to T1 and less than or equal to 21 DEG C
M-0.5 at 21 ℃ < T1 ≤ 25 ℃
M +1 at T1 > 25 ℃
From the above corrected calculation formula, it can be seen that when the ambient temperature value T1 is in a cold state (18 ℃ < T1 ≤ 21 ℃) or a hot state (T1 > 25 ℃), the correction of the thermal sensation state value M is large; when the environmental temperature value T1 is in a relatively comfortable state (21 ℃ is less than T1 and less than or equal to 25 ℃), the correction on the cold and heat feeling state value M is small.
Further, the value of the state of thermal sensation M may be limited to upper and lower limits, such as:
when M is less than or equal to-3, taking M as-3
When M is more than or equal to 3, taking M as 3
In the embodiment of the invention, when the air conditioner operates in the refrigeration mode, the ambient temperature value is detected, and the cold and heat feeling state value is corrected according to the ambient temperature value, so that the current cold and heat feeling state of the user reflected by the cold and heat feeling state value is further ensured to be closer to the current cold and heat feeling of the user, the air conditioner is controlled to adjust the operation parameters more accurately according to the cold and heat feeling state value, and the comfort experience of the user is further improved.
An air conditioner according to another embodiment of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 6, fig. 6 is a functional module schematic diagram of an embodiment of an air conditioner of the present invention. In this embodiment, the air conditioner includes:
the temperature detection module 10 is used for acquiring a radiation temperature value in a room and a temperature value of the surface of a human body;
the air temperature detection module 20 is used for detecting the air temperature value near the human body;
the cold and heat feeling acquisition module 30 is configured to acquire a first heat dissipation amount of the human body according to a difference between a surface temperature value of the human body and a radiation temperature in a room, acquire a second heat dissipation amount of the human body according to an air temperature value near the human body, acquire a heat dissipation amount of the human body according to the first heat dissipation amount and the second heat dissipation amount of the human body, and acquire a cold and heat feeling state of the human body according to the heat dissipation amount of the human body;
and the control module 40 is used for controlling the air conditioner to operate according to the cold and hot feeling state.
The temperature of the human body surface is the temperature value of the human body surface, and the radiation temperature is the temperature of the radiation effect of the surface around the environment on the human body. Taking a person in a room as an example, at this time, the radiation temperature is a temperature value of a surrounding environment in the room, such as surrounding walls, windows, and the like, which has a function of measuring a thermal image, and the two temperature values can be obtained by measuring and reading the temperature values by using sensors having the function of measuring the thermal image, for example, an array type infrared sensor module, in which a thermal image can be obtained when an infrared sensor scans a human body or the surrounding environment, as shown in fig. 7, the thermal image can obtain a temperature value of each small area, i.e., one of pixels, by an array arrangement manner, as shown in fig. 7, the color shade of each pixel represents the difference in the temperature values, and a specific temperature value of each. When the thermal infrared sensor scans a human body, a thermal image of a certain area can be obtained, because the temperatures of all the parts on the surface of the human body are different, the corresponding thermal images are also different, and therefore the temperature of the surface of the human body can be measured by measuring the temperature points of all the pixels of the thermal image corresponding to the human body and obtaining the average value, namely the average temperature value of the surface of the human body represents the surface temperature value of the human body. The radiation temperature in the room is measured by scanning a thermal image formed by surrounding areas such as walls, ceilings and windows in the room through an infrared sensor, removing a part of the thermal image where a human body is located, reading temperature values of all pixels of the remaining part of the thermal image, and then averaging to obtain a radiation temperature value in the room, namely, the average radiation temperature value in the room represents the radiation temperature value in the room.
The ambient temperature value can be detected by the air conditioner in a room, the ambient temperature value is generally detected by a temperature sensor arranged on the air conditioner, in order to obtain the air temperature value near the human body in the room according to the ambient temperature value detected by the air conditioner, the air temperature value needs to be considered by combining the specific refrigerating and heating running states of the air conditioner, because the air speed of the refrigerating and heating air supply has different influences on the air temperature near the human body, the air temperature near the human body is greatly influenced by the position of the human body in the room when the air is supplied in a refrigerating mode, the influence on the position of the human body in the room when the air is supplied in a heating mode is small, and different influence factors need to be considered by specifically combining the refrigerating and heating modes of the air conditioner in order to obtain the air temperature near the.
The rule for specifically acquiring the air temperature value near the human body is as follows:
and under the refrigeration mode, detecting the position of a human body, detecting the operation wind speed value and the environment temperature value of the air conditioner, and acquiring the air temperature value near the human body according to the position of the human body, the operation wind speed value and the environment temperature value of the air conditioner.
Further, when the position of the human body is detected, the position of the human body is determined by detecting the position angle of the human body in the left-right direction by an infrared sensor arranged on the air conditioner and the position angle of the human body and the infrared sensor in the up-down direction.
The array type infrared sensor module can read radiation temperature values in a room and temperature values on the surface of a human body, and the position of the human body in the room can be obtained through the array type infrared sensor module. The position of the human body in the room can be determined through two parameters based on the measured value of the array type infrared sensor module, wherein the two parameters are firstly based on the position parameters of the array type infrared sensor module for measuring the human body in the upper and lower directions; in addition, the array-type infrared sensor module is used for measuring the position parameters of the human body in the left and right directions.
Fig. 2 is a schematic diagram showing that the array infrared sensor module measures position parameters of a human body in the upper and lower directions, fig. 1 is an air conditioner, fig. 2 is the array infrared sensor module installed on the air conditioner, fig. 3 is the position of the human body, fig. 4 is a wall body around a room, and fig. 5 is a ground, the array infrared sensor module can detect the size of an included angle between a connecting line with the position of the human body in the upper and lower directions and a wall surface fixed by the air conditioner where the array infrared sensor module is installed, that is, the included angle θ between a connecting line L between the array infrared sensor module and the position of the human body and a line H vertically parallel to the wall surface of the fixed air conditioner, and because the installation height of the air conditioner is a fixed value, that is, H in the drawing is a fixed value, the value can be obtained by measuring the height of the air conditioner after the air conditioner is installed by a user and inputting the measured value into a control interface of the air conditioner, or can be roughly estimated, so that the size of W can be obtained by a trigonometric function formula, that W is H ＊ tan θ, that is the shortest.
Fig. 3 is a schematic diagram showing an array type infrared sensor module measuring position parameters of a human body in the left-right direction, in which, 1 is an air conditioner, 2 is an array type infrared sensor module installed on the air conditioner, 3 is a human body, 4 is a wall around a room, a1 and a2 are different position points where the human body is located, the maximum viewing angle of the array type infrared sensor module in the left-right direction, which can scan and detect the range of the surrounding environment and objects, is fixed, as shown in the diagram, an included angle b3 formed by lines L and L is the maximum viewing angle of the array type infrared sensor module in the left-right direction, when the human body is located at different positions in the room, as shown in the diagram, a1 and a2 points, the position of the array type infrared sensor module in the left-right direction, which is located at the maximum viewing angle range, can be detected and determined by the array type infrared sensor module, as the lines L and L are fixed, the connection line determined by the array type infrared sensor module and the connection line 3523 and the connection line of the detected two sides can be obtained by the connection line, as the angle b of the connection line between the infrared sensor module and the detected by the infrared sensor module, and the connection line 3727 b, which is not necessarily obtained by the connection line, and the connection line of the connection line between the connection line of the infrared sensor module which is determined by the connection line of the maximum connection line of the array type infrared sensor module, and the connection line of the detected left-right side of the array type infrared sensor module, which is determined by the line of the detected room, and the line of the.
The position of the human body in a room can be determined by measuring the position parameters of the human body in the up-down direction and the position parameters of the human body in the left-right direction of the array type infrared sensor module.
The position of the human body is determined according to the area of the human body in the room, and then the air temperature value near the human body in the refrigeration mode can be determined according to the running air speed value and the environment temperature value of the air conditioner. According to experiments, when the position of a human body is closer to the position opposite to the air conditioner, the deviation between the air temperature value near the human body and the ambient temperature value is larger; when the position of the human body is farther away from the position opposite to the air conditioner, the deviation between the air temperature value near the human body and the environment temperature value is smaller. When the air conditioner runs at a higher wind speed value, the deviation between the air temperature value near the human body and the environment temperature value is smaller; when the air conditioner is operated at a lower wind speed value, the deviation between the air temperature value near the human body and the environment temperature value is larger.
Specifically, the space in the room may be divided into a plurality of areas according to the position of the human body in the room, as shown in fig. 5, the area in the room is divided into a to E5 areas, where the area C is an area relatively close to the facing position of the air conditioner. The operation wind speed value of the air conditioner is divided into a plurality of grades F from small to large, and each grade has a corresponding operation wind speed value. In this embodiment, the air temperature value near the human body may be determined according to the room division region and the relationship between the level of the operating wind speed and the air temperature value near the human body. For example:
the above table shows that, if the human body is located in different areas of the room when the air conditioner operates at a certain wind speed level, such as 60, it can be seen that the difference between the air temperature value of the area C, where the human body is relatively close to the opposite position of the air conditioner, and the ambient temperature value is the largest, and the difference between the air temperature values of the other A, B, D, E areas and the ambient temperature value is the smallest. For example, when the human bodies are all located in the same area, such as the area C, the deviation value between the air temperature value near the human body and the environment temperature value corresponding to the operation wind speed of the air conditioner is smaller when the operation wind speed is 100 grade than that of the air conditioner corresponding to the operation wind speed of 80 grade. After the current area where the human body is located and the current operating wind speed value of the air conditioner are obtained, the air temperature value near the human body can be obtained according to the relation in the table.
In the heating mode, when the air temperature value near the human body is detected, the position relation with the human body is very small, so that the parameter does not need to be considered, the operation wind speed value of the air conditioner is newly influenced by the air temperature near the human body in the heating mode, the human body is sensitive to hot wind in the heating mode compared with cold wind in the cooling mode, and the difference of the hot wind speed in different sizes is obvious, so that the fixed calculation rule is not suitable for obtaining the air temperature value near the human body according to the environment temperature value T1, and the different calculation is needed according to different wind speed intervals. For example, the wind speed may be divided into 100 levels from small to large according to the operating wind speed value of the air conditioner, and the 100 levels are divided into 10 intervals, and each interval adopts a different calculation rule:
| interval of wind speed classes | Calculation rule |
| [1，10] | Ta＝T1－c1 |
| [11，30] | Ta＝T1－c2 |
| [31，50] | Ta＝T1－c3 |
| [51，70] | Ta＝T1－c4 |
| [71，90] | Ta＝T1－c5 |
| [91，100] | Ta＝T1－c6 |
Wherein Ta is the temperature value of air near the human body, T1 is the temperature value of environment, and c1, c2, c3, c4, c5 and c6 are positive values and are different from each other.
According to experiments, when the wind speed is higher, the difference between the air temperature near the human body and the ambient temperature is smaller, and when the wind speed is lower, the difference between the air temperature near the human body and the ambient temperature is larger, that is, the above-mentioned size relationship of c1, c2, c3, c4, c5 and c6 is: c1 > c2 > c3 > c4 > c5 > c6, for example, the table above lists specific values of c1, c2, c3, c4, c5, c6 as follows:
| interval of wind speed | Calculation rule |
| [1，10] | Ta＝T1－11 |
| [11，30] | Ta＝T1－9.3 |
| [31，50] | Ta＝T1－8.4 |
| [51，70] | Ta＝T1－4.1 |
| [71，90] | Ta＝T1－2.4 |
| [91，100] | Ta＝T1－0.9 |
According to the first law of thermodynamics, the heat dissipation generated by the human body is basically equal to the heat consumed by the human body, so that the heat dissipation of the human body can be obtained by measuring the heat consumed by the human body, and the heat consumed by the human body can be calculated by the following formula:
H＝H1+H2
wherein H1 ═ phi (Tcl-Tax)
H2＝A1＊Mh＊(A2－Ta)
H1 is a first heat dissipation capacity of the human body, mainly related to Tcl and Tax, Tcl is a temperature value of the surface of the human body, Tax is a radiation temperature value, Φ is an additional calculation coefficient, which are some common calculation coefficients in the field of human thermal comfort research, such as an effective radiation area coefficient f _ eff considering the surrounding environment, a human body area coefficient f _ cl of the dressing, Φ ═ f _ eff ＊ f _ cl, when H1 ═ f ＊ f _ cl ＊ (Tcl-Ta), a first heat dissipation capacity H1 of the human body is obtained by calculating a difference between the temperature value Tcl of the surface of the human body and the radiation temperature Ta and combining the calculation coefficient Φ, H2 is a second heat dissipation capacity of the human body, H2 is calculated mainly related to a human body metabolic rate Mh and an air temperature value near the human body, wherein the human body metabolic rate Mh is related to the human body, the heat dissipation capacities of different ages such as aged people and aged people such as young people are determined by a, a fixed heat dissipation capacity H1 and a total heat dissipation capacity H3876 is obtained by calculating the second heat dissipation capacity of the human body.
The cold and heat feeling state of the human body can be embodied by specific different values as follows:
| state value of cold and heat feeling | Interval of cold and heat feeling | Thermal comfort |
| －3≤M＜－2 | Interval 8 | Cold |
| －2＜M≤－1 | Interval 7 | Is somewhat cooled |
| －1＜M≤0.5 | Interval 6 | Cool down |
| －0.5≤M＜0 | Interval 5 | Comfort of the wearer |
| 0≤M≤0.5 | |
Comfort of the wearer |
| 0.5＜M≤1 | |
Heating device |
| 1＜M≤2 | |
Is a little bit hot |
| 2＜M≤3 | Interval 1 | Heat generation |
In the above table, the value of the state of cold and heat feeling M is divided into 8 sections, which respectively represent different heat comfort feelings of the human body, wherein the section 5 is a slightly cool comfort feeling, and the section 6 is a slightly warm comfort feeling.
Because the human body thermal sensation state is related to the heat consumed by the human body, and the heat consumed by the human body is equal to the heat dissipation capacity of the human body, the human body thermal sensation state is reflected by the heat dissipation capacity of the human body, the thermal sensations of different users are subjected to experience tests in the early-stage air conditioner research and development process, and the relational expression between the thermal sensation state value M and the heat dissipation capacity H can be obtained through a fitting formula according to the heat dissipation capacity values under different thermal sensations calculated at that time, for example, the relational expression between the thermal sensation state value M and the heat dissipation capacity H can be expressed as follows:
M＝a0+a1H+a2H2+a3H3+.....+anHn
wherein a0, a1, a2, a3 and an are different calculation coefficient values obtained according to experiments, N is a positive value, and the value of the positive value is determined according to a forming fitting formula between specific H and M data groups, and if N can be 4. Through the relational expression between the human body cold and heat feeling value M and the heat dissipation capacity H in the above formula, after the heat dissipation capacity H of the human body is obtained through calculation, the human body cold and heat feeling state value M is obtained by substituting the above formula. It should be noted that the fitting formula is only used to illustrate that a certain relationship exists between the human body cold and heat feeling value and the heat dissipating capacity, and the scope of the present invention is not limited, and other fitting formulas can be obtained by fitting the H and M data sets according to other fitting methods in the early experimental process.
The operation parameters of the air conditioner are controlled according to the state value of the human body cold and heat feeling, so that the state value of the human body cold and heat feeling is changed to a comfortable interval, the operation parameters of the air conditioner comprise one or more of set temperature, operation wind speed and air guide strip state, for example, when the current state value of the human body cold and heat feeling is 2.5 in the interval 1, namely, the human body cold and heat feeling is in a hot feeling, the set temperature of the current air conditioner is reduced when the set temperature of the automatic air conditioner is passed, so that the environmental temperature in a room is reduced, the state value of the human body cold and heat feeling is gradually reduced, and finally, the state of the human body cold and heat feeling is kept in the interval 4, so.
According to the air conditioner control method, the first heat dissipation capacity of the human body is obtained by obtaining the surface temperature of the human body and the radiation temperature value in a room, the second heat dissipation capacity of the human body is obtained by detecting the air temperature value near the human body, the heat dissipation capacity value of the human body is obtained according to the first heat dissipation capacity of the human body and the second heat dissipation capacity of the human body, the current cold and hot feeling state value of the human body is further obtained according to the heat dissipation capacity value of the human body, the accuracy of the cold and hot feeling state value obtained by the method is high, the cold and hot feeling state is further corrected according to the refrigeration or heating mode of the air conditioner operation after the cold and hot feeling state value is obtained, the cold and hot feeling state value of the human body is more accurately suitable for different temperature environments of the current air conditioner operation, and finally, the operation parameters of the air conditioner are automatically adjusted according to the current cold and hot feeling state, the discomfort of overcooling or overheating caused by the manual adjustment of the operating parameters of the air conditioner by a user is solved.
Further, based on the first embodiment of the air conditioner of the present invention, in this embodiment, the temperature obtaining module 20 is configured to:
after the cold and hot feeling state of the human body is obtained according to the heat dissipation capacity of the human body, if the air conditioner operates in the refrigeration mode, the ambient temperature value is detected, and the cold and hot feeling state value is corrected according to the temperature value.
After the human body cold and heat feeling state value is calculated according to the heat dissipation capacity, if the air conditioner operates in a refrigeration mode, the cold and heat feeling state value can be further corrected according to the detected environmental temperature value.
The specific adjustment rules are as follows:
the ambient temperature value T1 detected by the air conditioner is obtained, and the thermal sensation state value M is corrected according to the value of the ambient temperature value T1, for example, it can be corrected by a formula, such as:
M＝aT13+b T12+c T1+d
wherein a, b, c, d are different calculated coefficient values.
Or the temperature range may be divided into different temperature ranges according to the ambient temperature value T1, and the thermal sensation state value M may be modified differently according to the different temperature ranges, such as:
when a1 is more than T1 and less than or equal to a2, M is M + b1
When a2 is more than T1 and less than or equal to a3, M is M + b2
M + b3 when T1 > a4
Wherein a1 < a2 < a3, b1, b2, b3 are different correction values, for example, the specific correction values may be as follows:
m-1 at the temperature of more than 18 ℃ and less than or equal to T1 and less than or equal to 21 DEG C
M-0.5 at 21 ℃ < T1 ≤ 25 ℃
M +1 at T1 > 25 ℃
From the above corrected calculation formula, it can be seen that when the ambient temperature value T1 is in a cold state (18 ℃ < T1 ≤ 21 ℃) or a hot state (T1 > 25 ℃), the correction of the thermal sensation state value M is large; when the environmental temperature value T1 is in a relatively comfortable state (21 ℃ is less than T1 and less than or equal to 25 ℃), the correction on the cold and heat feeling state value M is small.
Further, the value of the state of thermal sensation M may be limited to upper and lower limits, such as:
when M is less than or equal to-3, taking M as-3
When M is more than or equal to 3, taking M as 3
In the embodiment of the invention, when the air conditioner operates in the refrigeration mode, the ambient temperature value is detected, and the cold and heat feeling state is corrected according to the temperature value, so that the current cold and heat feeling state of a user reflected by the cold and heat feeling state value is further ensured to be closer to the current cold and heat feeling of the user, the subsequent adjustment of the air conditioner according to the cold and heat feeling state is more accurate, and the comfort experience of the user is further improved.
According to the air conditioner, the first heat dissipation capacity of the human body is obtained by obtaining the difference value between the surface temperature of the human body and the radiation temperature value in the room, the second heat dissipation capacity of the human body is obtained through the air temperature value near the human body, the heat dissipation capacity value of the human body is obtained through the first heat dissipation capacity of the human body and the second heat dissipation capacity of the human body, the current cold and hot feeling state value of the human body is further obtained according to the heat dissipation capacity value of the human body, the cold and hot feeling state value obtained through the method is high in accuracy due to the fact that the influence of the temperature value near the human body is considered, the cold and hot feeling state value is further corrected according to the cooling mode of the air conditioner operation after the cold and hot feeling state value is obtained, the cold and hot feeling state value of the human body is enabled to be more accurately adaptive to different temperature environments of the current air conditioner operation, and finally the operation, the human body is in a comfortable state, and the discomfort of over-cooling or over-heating caused by the manual adjustment of the operation parameters of the air conditioner by a user is solved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An air conditioner control method, characterized by comprising the steps of:
acquiring a radiation temperature value in a room and a temperature value of the surface of a human body;
acquiring an air temperature value near a human body;
obtaining a first heat dissipation capacity of the human body according to the difference value between the surface temperature value of the human body and the radiation temperature in the room, obtaining a second heat dissipation capacity of the human body according to the air temperature value near the human body, and obtaining the heat dissipation capacity of the human body according to the first heat dissipation capacity and the second heat dissipation capacity of the human body;
obtaining the cold and hot feeling state of the human body according to the heat dissipation capacity of the human body;
controlling the air conditioner to operate according to the cold and hot feeling state;
the step of obtaining the temperature value of the air near the human body comprises the following steps:
when the air conditioner operates in a refrigeration mode, detecting the position of a human body, detecting an operating wind speed value and an environment temperature value of the air conditioner, and acquiring an air temperature value near the human body according to the position of the human body, the operating wind speed value and the environment temperature value;
dividing the space in a room into a plurality of areas;
dividing the operation wind speed value of the air conditioner into a plurality of grades from small to large, wherein each wind speed grade has a corresponding operation wind speed value;
according to the room division areas and the relation between the grade of the operating wind speed and the air temperature value near the human body, the air temperature value near the human body can be determined;
the method for obtaining the cold and hot feeling state of the human body comprises the following steps:
the state of the human body is expressed by a state value M of the human body, and the relation between the state value M of the human body and the heat dissipation capacity H is as follows:
M＝a0+a1H+a2H2+a3H3+.....+anHn
a0, a1, a2, a3 and an are different calculation coefficient values obtained according to experiments, n is a positive value, and the value of the positive value is determined according to a forming fitting formula between specific H and M data groups;
the step of detecting the position of the human body comprises the following steps:
the position of the human body in a room can be determined by measuring the position parameters of the human body in the up-down direction and the position parameters of the human body in the left-right direction of the array type infrared sensor module.
2. The air conditioner controlling method as claimed in claim 1, wherein the step of obtaining the temperature value of the air near the human body comprises:
when the air conditioner operates in a heating mode, detecting an air conditioner operation air speed value and an environment temperature value, and acquiring an air temperature value near a human body according to the air conditioner operation air speed value and the environment temperature value.
3. The air conditioner controlling method as claimed in claim 1, further comprising, after obtaining the thermal sensation state of the human body according to the heat dissipation capacity of the human body:
when the air conditioner runs in a refrigeration mode, detecting an environmental temperature value, and correcting the cold and hot feeling state according to the environmental temperature value.
4. The air conditioner controlling method as claimed in any one of claims 1 to 3, wherein the step of controlling the operation of the air conditioner according to the cold feeling state includes:
and controlling one or more of the set temperature, the operating wind speed and the air guide bar parameters of the air conditioner according to the cold and hot feeling state.
5. An air conditioner, comprising:
the temperature detection module is used for detecting the radiation temperature in the room and the temperature value of the surface of the human body;
the array type infrared sensor module is used for measuring the position parameters of the human body in the up-down direction and the left-right direction, and then the position of the human body in a room can be determined;
the air temperature detection module is used for dividing the space in the room into a plurality of areas, dividing the operation wind speed value of the air conditioner into a plurality of grades from small to large, wherein each wind speed grade has a corresponding operation wind speed value, and determining the air temperature value near the human body according to the divided areas of the room and the relation between the grade of the operation wind speed and the air temperature value near the human body;
the cold and heat feeling acquisition module is used for acquiring a first heat dissipation capacity of a human body according to a difference value between a surface temperature value of the human body and a radiation temperature in a room, acquiring a second heat dissipation capacity of the human body according to an air temperature value near the human body, acquiring a heat dissipation capacity of the human body according to the first heat dissipation capacity of the human body and the second heat dissipation capacity of the human body, and acquiring a cold and heat feeling state of the human body according to the heat dissipation capacity of the human body, wherein the method for acquiring the cold and heat feeling state of the human body comprises the following steps:
the state of the human body is expressed by a state value M of the human body, and the relation between the state value M of the human body and the heat dissipation capacity H is as follows:
M＝a0+a1H+a2H2+a3H3+.....+anHn
a0, a1, a2, a3 and an are different calculation coefficient values obtained according to experiments, n is a positive value, and the value of the positive value is determined according to a forming fitting formula between specific H and M data groups;
and the control module controls the air conditioner to operate according to the cold and heat feeling state.
6. The air conditioner of claim 5, wherein the step of determining the temperature value of the air near the human body comprises:
when the air conditioner operates in a refrigeration mode, detecting the position of a human body, detecting the operation wind speed value and the environment temperature value of the air conditioner, and acquiring the air temperature value near the human body according to the position of the human body, the operation wind speed value and the environment temperature value.
7. The air conditioner of claim 5, wherein the step of determining the temperature value of the air near the human body comprises:
when the air conditioner operates in a heating mode, detecting an air conditioner operation air speed value and an environment temperature value, and acquiring an air temperature value near a human body according to the air conditioner operation air speed value and the environment temperature value.
8. The air conditioner as claimed in claim 5, further comprising, after obtaining the thermal sensation state of the human body according to the heat dissipation capacity of the human body:
when the air conditioner runs in a refrigeration mode, detecting an environmental temperature value, and correcting the cold and hot feeling state according to the environmental temperature value.
9. The air conditioner according to any one of claims 6 to 8, wherein the step of controlling the operation of the air conditioner according to the cold feeling state comprises:
and controlling one or more of the set temperature, the operating wind speed and the air guide bar parameters of the air conditioner according to the cold and hot feeling state.
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| CN201610625617.1A CN106196490B (en) | 2016-07-29 | 2016-07-29 | Control method of air conditioner and air conditioner |
| PCT/CN2017/086426 WO2018019026A1 (en) | 2016-07-29 | 2017-05-27 | Control method for air conditioner, and air conditioner |
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| CN107101321A (en) * | 2017-04-11 | 2017-08-29 | 美的集团武汉制冷设备有限公司 | Air-conditioner control method, device and air conditioner |
| CN109405213B (en) * | 2018-10-26 | 2021-01-08 | 美的集团武汉制冷设备有限公司 | Air conditioner, control method and device thereof and readable storage medium |
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| CN104501354A (en) * | 2014-12-02 | 2015-04-08 | 广东美的制冷设备有限公司 | Regulation method and system for air supply manner of air conditioner |
| CN105339742A (en) * | 2014-02-17 | 2016-02-17 | 松下电器产业株式会社 | Air conditioner and thermal image sensor system |
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| CN105339742A (en) * | 2014-02-17 | 2016-02-17 | 松下电器产业株式会社 | Air conditioner and thermal image sensor system |
| CN104501354A (en) * | 2014-12-02 | 2015-04-08 | 广东美的制冷设备有限公司 | Regulation method and system for air supply manner of air conditioner |
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