CN112283897B - Air conditioner and control method - Google Patents
Air conditioner and control method Download PDFInfo
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- CN112283897B CN112283897B CN202010989903.2A CN202010989903A CN112283897B CN 112283897 B CN112283897 B CN 112283897B CN 202010989903 A CN202010989903 A CN 202010989903A CN 112283897 B CN112283897 B CN 112283897B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
- 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
- F24F11/67—Switching between heating and cooling modes
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
Abstract
The invention discloses an air conditioner and a control method, the air conditioner comprises a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor environment temperature sensor, an indoor environment humidity sensor, an infrared imaging sensor and a controller, wherein the controller is configured to: according to the area of the indoor environment and the number of users in the indoor environment are determined by the infrared imaging sensor, the set temperature of the air conditioner is adjusted based on the area grade of the area and the number grade of the users of the number of the users, the set temperature of the air conditioner can be adjusted more accurately according to the area of the indoor environment and the number of the users in the indoor environment, and the use experience of the users is improved.
Description
Technical Field
The present disclosure relates to the field of air conditioners, and more particularly, to an air conditioner and a control method thereof.
Background
In the air conditioning industry, the air conditioner is mainly adjusted according to temperature and humidity parameters in an indoor environment when operating a refrigeration and heating mode, or is adjusted according to the direction of a user and by combining the temperature and the humidity, and the adjustment mode is single.
The adjusting mode in the prior art is mostly adjusting aiming at some conventional parameters, in an indoor environment, parameters influencing the indoor environment are many, and some special devices and indoor environment parameters influence comfort level, for example, the adjusting requirements for the set temperature of the air conditioner are different due to the difference between the indoor environment area and the number of users in the indoor environment, but the scheme for adjusting the set temperature of the air conditioner according to the indoor environment area and the number of users in the indoor environment is not provided in the prior art, so that the set temperature of the air conditioner is more accurate.
Therefore, how to provide an air conditioner capable of adjusting the set temperature more accurately so as to improve the user experience is a technical problem to be solved at present.
Disclosure of Invention
The embodiment of the invention provides an air conditioner, which is used for solving the technical problem that the set temperature of the air conditioner cannot be more accurately adjusted according to the indoor environment area and the user experience is influenced in the prior art.
In some embodiments of the present invention, the air conditioner includes:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
an outdoor heat exchanger and an indoor heat exchanger, wherein one of the heat exchangers operates as a condenser and the other operates as an evaporator;
an indoor environment temperature sensor for detecting an indoor environment temperature;
an indoor environment humidity sensor for detecting the indoor environment humidity;
the infrared imaging sensor is used for acquiring the area of the indoor environment and the number of users in the indoor environment;
the controller is configured to include:
determining the area of the indoor environment and the number of users in the indoor environment according to the infrared imaging sensor;
adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number.
In some embodiments of the invention, the controller is further configured to:
if the area is larger than a first preset area threshold value, the area grade is a first area grade;
if the area is not smaller than a second preset area threshold and not larger than a first preset area threshold, the area grade is a second area grade;
if the user number is greater than a first preset user number threshold, the user number grade is a first user number grade;
and if the user number is not less than a second preset user number threshold and not more than a first preset user number threshold, the user number grade is a second user number grade.
In some embodiments of the present invention, the controller is specifically configured to:
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a first preset adjusting temperature from the set temperature;
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the first preset adjusting temperature;
if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a second preset adjusting temperature from the set temperature;
and if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the second preset adjusting temperature.
In some embodiments of the invention, the controller is further configured to:
acquiring a user clothing amount of a user in the indoor environment, wherein the user clothing amount is determined according to a body surface temperature distribution image of the user, and comprises a first clothing amount, a second clothing amount and a third clothing amount, wherein the first clothing amount is larger than the second clothing amount, and the second clothing amount is larger than the third clothing amount;
and adjusting the operation mode of the air conditioner based on the indoor environment temperature, the indoor environment humidity and the clothes dressing amount of the user.
In some embodiments of the present invention, the controller is specifically configured to:
if the indoor environment temperature is not greater than a first preset indoor environment temperature and the clothes amount of the user is the first clothes amount, adjusting the operation mode of the air conditioner to be a heating mode;
and if the indoor environment temperature is not less than a second preset indoor environment temperature and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to be a refrigeration mode.
In some embodiments of the present invention, the controller is specifically configured to:
if the indoor environment temperature is higher than a third preset indoor environment temperature, the indoor environment humidity is higher than a preset indoor environment humidity, and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to a preset dehumidification mode, and adjusting the operation wind speed of the air conditioner to a preset high wind mode;
if the indoor environment temperature is higher than a fourth preset indoor environment temperature, the indoor environment humidity is higher than the preset indoor environment humidity, and the clothes amount of the user is the second clothes amount, the operation mode of the air conditioner is adjusted to be the preset dehumidification mode, and the operation wind speed of the air conditioner is adjusted to be the preset wind stroke mode.
Corresponding to the air conditioner in the embodiment of the invention, the embodiment of the invention also provides a control method of the air conditioner, which is applied to the air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor environment temperature sensor, an indoor humidity sensor, an infrared imaging sensor and a controller,
in some embodiments of the invention, the method comprises:
determining the area of an indoor environment and the number of users in the indoor environment according to the infrared imaging sensor;
adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number.
In some embodiments of the present invention, before adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number, the method further comprises:
if the area is larger than a first preset area threshold value, the area grade is a first area grade;
if the area is not smaller than a second preset area threshold and not larger than a first preset area threshold, the area grade is a second area grade;
if the user number is greater than a first preset user number threshold, the user number grade is a first user number grade;
and if the user quantity is not less than a second preset user quantity threshold and not more than a first preset user quantity threshold, the user quantity grade is a second user quantity grade.
In some embodiments of the present invention, the adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number specifically includes:
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a first preset adjusting temperature from the set temperature;
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the first preset adjusting temperature;
if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a second preset adjusting temperature from the set temperature;
and if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the second preset adjusting temperature.
In some embodiments of the invention, further comprising:
acquiring a user clothing amount of a user in the indoor environment, wherein the user clothing amount is determined according to a body surface temperature distribution image of the user, and comprises a first clothing amount, a second clothing amount and a third clothing amount, wherein the first clothing amount is larger than the second clothing amount, and the second clothing amount is larger than the third clothing amount;
and adjusting the operation mode of the air conditioner based on the indoor environment temperature, the indoor environment humidity and the clothes dressing amount of the user.
Compared with the prior art, the invention has the following beneficial effects:
through using above technical scheme, according to infrared imaging sensor confirms the area of indoor environment with user's quantity in the indoor environment, based on the area grade of area with user's quantity grade adjusts the settlement temperature of air conditioner, realized coming more accurate regulation air conditioner's settlement temperature according to the area of indoor environment and user's quantity in the indoor environment, promoted user's use experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a circuit diagram schematically showing the configuration of an air conditioner according to the embodiment.
Fig. 2 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating operation of an infrared imaging sensor in an embodiment of the invention;
fig. 4 is a diagram showing the relationship between the frequency of the compressor and the difference between the ring temperature and the set temperature in the embodiment of the present invention.
Description of the reference symbols
1: an air conditioner; 2: an outdoor unit; 3: an indoor unit; 10: a refrigerant circuit; 11: a compressor; 12: a four-way valve; 13: an outdoor heat exchanger;
14: an expansion valve; 16: an indoor heat exchanger; 21: an outdoor fan; 31: an indoor fan; 32: an indoor temperature sensor; 33: indoor heat exchanger temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
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 application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
Fig. 1 shows a circuit configuration of an air conditioner 1, and the air conditioner 1 includes a refrigerant circuit 10, and is capable of executing a vapor compression refrigeration cycle by circulating a refrigerant in the refrigerant circuit 10. The indoor unit 3 and the outdoor unit 2 are connected by a connecting pipe 4 to form a refrigerant circuit 10 through which a refrigerant circulates. The refrigerant circuit 10 includes a compressor 11, an outdoor heat exchanger 13, an expansion valve 14, an accumulator 15, and an indoor heat exchanger 16. Among them, the indoor heat exchanger 16 and the outdoor heat exchanger 13 operate as a condenser or an evaporator. The compressor 11 sucks the refrigerant from the suction port, and discharges the refrigerant compressed therein to the indoor heat exchanger 16 from the discharge port. The compressor 11 is an inverter compressor with variable capacity that performs rotational speed control by an inverter, and the four-way valve 12 switches between heating and cooling.
The outdoor heat exchanger 13 has a first inlet and a second outlet for allowing the refrigerant to flow between the refrigerant and the suction port of the compressor 11 through the accumulator 15, and the refrigerant flows between the refrigerant and the expansion valve 14. The outdoor heat exchanger 13 exchanges heat between the outdoor air and the refrigerant flowing through a heat transfer pipe (not shown) connected between the second inlet and the first inlet of the outdoor heat exchanger 13.
The expansion valve 14 is disposed between the outdoor heat exchanger 13 and the indoor heat exchanger 16. The expansion valve 14 has a function of expanding and decompressing the refrigerant flowing between the outdoor heat exchanger 13 and the indoor heat exchanger 16. The expansion valve 14 is configured to be capable of changing the opening degree, and by decreasing the opening degree, the flow path resistance of the refrigerant passing through the expansion valve 14 is increased, and by increasing the opening degree, the flow path resistance of the refrigerant passing through the expansion valve 14 is decreased. The expansion valve 14 expands and decompresses the refrigerant flowing from the indoor heat exchanger 16 to the outdoor heat exchanger 13 during the heating operation. Further, even if the states of other devices installed in the refrigerant circuit 10 do not change, when the opening degree of the expansion valve 14 changes, the flow rate of the refrigerant flowing in the refrigerant circuit 10 changes.
The indoor heat exchanger 16 has a second inlet and outlet for allowing the liquid refrigerant to flow between the expansion valve 14 and the indoor heat exchanger, and has a first inlet and outlet for allowing the gas refrigerant to flow between the compressor 11 and the discharge port. The indoor heat exchanger 16 exchanges heat between the refrigerant flowing through the heat transfer pipe connected between the second inlet and the first inlet and the second outlet of the indoor heat exchanger 16 and the indoor air.
An accumulator 15 is disposed between the outdoor heat exchanger 13 and the suction port of the compressor 11. In the accumulator 15, the refrigerant flowing from the outdoor heat exchanger 13 to the compressor 11 is separated into a gas refrigerant and a liquid refrigerant. Then, the gas refrigerant is mainly supplied from the accumulator 15 to the suction port of the compressor 11.
The outdoor unit 2 further includes an outdoor fan 21, and the outdoor fan 21 generates an airflow of outdoor air passing through the outdoor heat exchanger 13 to promote heat exchange between the refrigerant flowing through the heat transfer tubes and the outdoor air. The outdoor fan 21 is driven by an outdoor fan motor 21A whose rotational speed can be changed. The indoor unit 3 further includes an indoor fan 31, and the indoor fan 31 generates an airflow of the indoor air passing through the indoor heat exchanger 16 to promote heat exchange between the refrigerant flowing through the heat transfer tubes and the indoor air. The indoor fan 31 is driven by an indoor fan motor 31A whose rotation speed can be changed.
As described in the background art, the set temperature of the air conditioner in the prior art is relatively single to be adjusted, and is mainly set by using a remote controller according to the user's own experience, for example, when the user is hot, the user may need to set the temperature of the indoor environment to 25 ℃, and this 25 ℃ is the sensible temperature that the user wants to feel, but when the area of the indoor environment is too large or the number of users in the indoor environment is too many, the operating frequency of the air conditioner is fixed after the set temperature is set, and therefore, the air conditioner cannot actually reach the temperature value desired by the user in the indoor environment.
In order to solve the above problem, an embodiment of the present application provides an air conditioner, including:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
an outdoor heat exchanger and an indoor heat exchanger, wherein one of the heat exchangers operates as a condenser and the other operates as an evaporator;
an indoor environment temperature sensor for detecting an indoor environment temperature;
an indoor environment humidity sensor for detecting the indoor environment humidity;
the infrared imaging sensor is used for acquiring the area of an indoor environment and the number of users in the indoor environment;
the controller is configured to include:
determining the area of the indoor environment and the number of users in the indoor environment according to the infrared imaging sensor;
adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number.
Specifically, the area of the indoor environment and the number of users in the indoor environment are important factors for the air conditioner to adjust the indoor environment temperature, and by installing an infrared imaging sensor at the front end of the indoor unit of the air conditioner, the resolution of the sensor is not lower than 120 × 90, and the horizontal field angle is not lower than 90 degrees, as shown in fig. 3.
The recognition of the position of the user in the detection area is realized through the infrared imaging sensor, the user quantity is detected, the user quantity grade is determined, meanwhile, the temperature information in the indoor environment can be detected, the temperature information comprises the human body temperature of the user, the wall temperature, the space temperature of the indoor environment and the like, the distance from the sensor to each wall needs to be detected, the area of the indoor environment is determined through the distance from the sensor to each wall, and the set temperature of the air conditioner is adjusted through the area grade of the area and the user quantity grade of the user quantity.
It should be noted that the above manner of determining the area of the indoor environment and the number of users in the indoor environment according to the infrared imaging sensor is only one specific implementation manner in the present application, and other manners of determining the area of the indoor environment and the number of users, such as determining the area by inputting the area of the indoor environment by a user or determining the area by an indoor environment user-type diagram, all belong to the protection scope of the present application.
In order to determine the area level and the user number level more accurately, in an embodiment of the present application, the controller is further configured to:
if the area is larger than a first preset area threshold value, the area grade is a first area grade;
if the area is not smaller than a second preset area threshold and not larger than a first preset area threshold, the area grade is a second area grade;
if the user number is greater than a first preset user number threshold, the user number grade is a first user number grade;
and if the user quantity is not less than a second preset user quantity threshold and not more than a first preset user quantity threshold, the user quantity grade is a second user quantity grade.
Specifically, the area of the indoor environment is not affected by the same temperature of the indoor environment when the area is different in size, that is, different area grades, and the number of users in the indoor environment, that is, the number grade of users, so that the area of the indoor environment and the number of users in the indoor environment need to be classified according to grade.
The method comprises the steps of presetting a first preset area threshold, a second preset area threshold, a first preset user number threshold and a second user number threshold, wherein the first preset area threshold is larger than the second preset area threshold, and the first preset user number threshold is larger than the second user number threshold.
In order to accurately adjust the set temperature of the air conditioner, in the embodiment of the present application, the controller is specifically configured to:
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a first preset adjusting temperature from the set temperature;
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the first preset adjusting temperature;
if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a second preset adjusting temperature from the set temperature;
and if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the second preset adjusting temperature.
Specifically, in the cooling mode of the air conditioner, if the area level of the indoor environment is the second area level or the number of users is the second number of users level, the second preset adjustment temperature, for example, 0.5 ℃, is subtracted from the set temperature of the air conditioner, because the temperature of the user cannot be adjusted according to the initial set temperature when the area of the indoor environment or the number of users reaches the first step, and thus the temperature needs to be adjusted to be low.
In the air conditioner operation cooling mode, if the area level of the indoor environment is the first area level or the number level of the users is the first number level of the users, the first preset adjustment temperature, for example, 1 ℃, is subtracted from the set temperature of the air conditioner, because the area of the indoor environment or the number of the users reaches the second step, at this time, the area of the indoor environment is too large or the number of the users is too large, the cooling effect at the original set temperature is not obvious, and therefore the temperature needs to be adjusted more.
In the heating mode, if the area grade of the indoor environment is the second area grade or the user quantity grade is the second user quantity grade, the set temperature of the air conditioner is increased by a second preset adjusting temperature, and if the area grade of the indoor environment is the first area grade or the user quantity grade is the first user quantity grade, the set temperature of the air conditioner is increased by a first preset adjusting temperature.
It should be noted that, if the area level is smaller than the second preset area level and the user number level is smaller than the second user number level, no adjustment is performed on the set temperature.
And if the area grade is the second area grade and the user quantity grade is the first user quantity grade, or the area grade is the first area grade and the user quantity grade is the second user quantity grade, the first preset adjusting temperature is selected for adjusting the set temperature of the air conditioner, and the adjustment is not accumulated.
It should be noted that the above embodiment is only a specific implementation manner in the present application, and other manners of adjusting the set temperature of the air conditioner according to the area size of the indoor environment and the number of users all belong to the protection scope of the present application.
In addition, the relationship between the ambient temperature, i.e., the difference between the indoor ambient temperature and the set temperature, and the frequency of the compressor may be as shown in fig. 4, and when the area level is the second area level or the user number level is the second user number level, the second preset adjustment temperature is subtracted from the difference N2 between the indoor ambient temperature and the set temperature, or when the area level is the first area level or the user number level is the first user number level, the first preset adjustment temperature is subtracted from the difference N2 between the indoor ambient temperature and the set temperature, so as to adjust the set temperature of the air conditioner.
In order to more accurately determine a need of a user for a body-sensing temperature, in an embodiment of the present application, the controller is specifically configured to:
acquiring a user clothes amount of a user in the indoor environment, wherein the user clothes amount is determined according to a body surface temperature distribution image of the user, and comprises a first clothes amount, a second clothes amount and a third clothes amount, the first clothes amount is larger than the second clothes amount, and the second clothes amount is larger than the third clothes amount;
and adjusting the operation mode of the air conditioner based on the indoor environment temperature, the indoor environment humidity and the clothes dressing amount of the user.
Specifically, after the body temperature distribution diagram of the user is identified by the infrared imaging sensor, the clothing load of the user can be determined according to the body temperature distribution diagram, and can be roughly divided into a first clothing load, a second clothing load and a third clothing load, wherein the first clothing load is larger than the second clothing load, the second clothing load is larger than the third clothing load, and then the control of the cooling and heating operation modes of the air conditioner according to the clothing load of the user and the indoor environment temperature and humidity can be supported.
In order to adjust the operation mode of the air conditioner more accurately according to the clothes amount of the user, in the embodiment of the present application, the controller is specifically configured to:
if the indoor environment temperature is not greater than a first preset indoor environment temperature and the clothes amount of the user is the first clothes amount, adjusting the operation mode of the air conditioner to be a heating mode;
and if the indoor environment temperature is not less than a second preset indoor environment temperature and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to be a refrigeration mode.
Specifically, the first clothing amount also represents that the user wears more clothing, which indicates that the current indoor environment temperature is low, and therefore, when the indoor environment temperature is not greater than the first preset indoor environment temperature, for example, 10 ℃, and the clothing amount of the user is the first clothing amount, the operation mode of the air conditioner is adjusted to the heating mode, so that the user feels warm.
When the clothing amount of the user is not less than the second preset indoor temperature, for example, 30 ℃, and the clothing amount of the user is the third clothing amount, the operation mode of the air conditioner is adjusted to be the cooling mode, the third clothing amount also represents that the clothing worn by the user is less, and the first clothing amount, the second clothing amount and the third clothing amount can be distinguished according to the temperature difference between the exposed parts such as the face and the non-exposed parts such as the trunk in the human body temperature distribution diagram, and can also be distinguished according to the temperature of a certain part such as the trunk in the human body temperature distribution diagram, so that the protection range of the application is not influenced.
In order to improve the accuracy of the adjustment of the operation mode of the air conditioner, in the embodiment of the present application, the controller is specifically configured to:
if the indoor environment temperature is higher than a third preset indoor environment temperature, the indoor environment humidity is higher than a preset indoor environment humidity, and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to be a preset dehumidification mode, and adjusting the operation wind speed of the air conditioner to be a preset high wind mode;
and if the indoor environment temperature is higher than a fourth preset indoor environment temperature, the indoor environment humidity is higher than the preset indoor environment humidity, and the clothing amount of the user is the second clothing amount, adjusting the operation mode of the air conditioner to be the preset dehumidification mode, and adjusting the operation wind speed of the air conditioner to be the preset wind blowing mode.
Specifically, the air conditioner in this application does not have indoor environment temperature sensor, and indoor environment humidity transducer in addition can combine the user clothing volume to control the operational mode of air conditioner according to the humiture of indoor environment.
When it is detected that the indoor environment temperature is higher than a third preset indoor environment temperature, such as 25 ℃, and the indoor environment humidity is higher than the preset indoor environment humidity, such as the indoor environment humidity is higher than 80%, and the user clothing amount is the third clothing amount, the operation mode of the air conditioner may be adjusted to the preset dehumidification mode, and the operation wind speed of the air conditioner may be adjusted to the preset high wind mode, in such a case, for example, in summer in the south or in coastal areas, where the indoor temperature is high and the humidity is high, dehumidification of the indoor environment is required, humidity of the indoor environment is avoided, the operation wind speed is adjusted to the preset high wind mode, or in other words, the high wind mode, so that the user feels cool.
When the indoor environment is detected to be higher than the fourth preset indoor environment temperature, such as 20 ℃, the indoor environment humidity is higher than the preset indoor environment humidity, and the clothes amount of the user is the second clothes amount, the operation mode of the air conditioner is adjusted to be the preset dehumidification mode, and the operation wind speed of the air conditioner is adjusted to be the preset wind stroke mode.
Through using above technical scheme, according to infrared imaging sensor confirms the area of indoor environment with user's quantity in the indoor environment, based on the area grade of area with user's quantity grade adjusts the settlement temperature of air conditioner, realized coming more accurate regulation air conditioner's settlement temperature according to the area of indoor environment and user's quantity in the indoor environment, promoted user's use experience.
Corresponding to the air conditioner in the embodiment of the present application, the embodiment of the present application further provides a control method of an air conditioner, as shown in fig. 2, the method is applied to an air conditioner including a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor ambient temperature sensor, an indoor humidity sensor, an infrared imaging sensor, and a controller, and the method includes:
step S201, determining the area of an indoor environment and the number of users in the indoor environment according to the infrared imaging sensor.
Specifically, the area of the indoor environment and the number of users in the indoor environment are important factors for the air conditioner to adjust the indoor environment temperature, and by installing an infrared imaging sensor at the front end of the indoor unit of the air conditioner, the resolution of the sensor is not lower than 120 × 90, and the horizontal field angle is not lower than 90 degrees, as shown in fig. 3.
The recognition of the position of the user in the detection area is realized through the infrared imaging sensor, the user quantity is detected, the user quantity grade is determined, meanwhile, the temperature information in the indoor environment can be detected, the temperature information comprises the human body temperature of the user, the wall temperature, the space temperature of the indoor environment and the like, the distance from the sensor to each wall needs to be detected, the area of the indoor environment is determined through the distance from the sensor to each wall, and the set temperature of the air conditioner is adjusted through the area grade of the area and the user quantity grade of the user quantity.
And S202, adjusting the set temperature of the air conditioner based on the area grade of the area and the user quantity grade of the user quantity.
Specifically, the set temperature of the air conditioner is flexibly adjusted according to the determined area grade of the indoor environment and the user quantity grade of the user quantity.
In order to determine the area level and the user number level more accurately, in this embodiment of the application, before adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number, the method further includes:
if the area is larger than a first preset area threshold value, the area grade is a first area grade;
if the area is not smaller than a second preset area threshold value and not larger than a first preset area threshold value, the area grade is a second area grade;
if the user number is greater than a first preset user number threshold, the user number grade is a first user number grade;
and if the user number is not less than a second preset user number threshold and not more than a first preset user number threshold, the user number grade is a second user number grade.
In order to adjust the set temperature of the air conditioner more accurately according to the area level and the user number level, in this embodiment of the present application, the adjusting the set temperature of the air conditioner according to the area level of the area and the user number level of the user number specifically includes:
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a first preset adjusting temperature from the set temperature;
if the area grade is the first area grade and/or the user number grade is the first user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the first preset adjusting temperature;
if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a refrigeration mode, subtracting a second preset adjusting temperature from the set temperature;
and if the area grade is the second area grade and/or the user number grade is the second user number grade and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the second preset adjusting temperature.
In order to make the operation mode adjustment of the air conditioner more intelligent, in this embodiment of the application, the method further includes:
acquiring a user clothing amount of a user in the indoor environment, wherein the user clothing amount is determined according to a body surface temperature distribution image of the user, and comprises a first clothing amount, a second clothing amount and a third clothing amount, wherein the first clothing amount is larger than the second clothing amount, and the second clothing amount is larger than the third clothing amount;
and adjusting the operation mode of the air conditioner based on the indoor environment temperature, the indoor environment humidity and the clothes dressing amount of the user.
Through using above technical scheme, according to infrared imaging sensor confirms the area of indoor environment with user's quantity in the indoor environment, based on the area grade of area with user's quantity grade adjusts the settlement temperature of air conditioner, realized coming more accurate regulation air conditioner's settlement temperature according to the area of indoor environment and user's quantity in the indoor environment, promoted user's use experience.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (3)
1. An air conditioner, characterized in that the air conditioner comprises: the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer; the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; an outdoor heat exchanger and an indoor heat exchanger, wherein one of the heat exchangers operates as a condenser and the other operates as an evaporator; an indoor environment temperature sensor for detecting an indoor environment temperature; an indoor environment humidity sensor for detecting the indoor environment humidity; the infrared imaging sensor is used for acquiring the area of the indoor environment and the number of users in the indoor environment; the controller is configured to include: determining an area of the indoor environment and a number of users in the indoor environment according to the infrared imaging sensor; adjusting a set temperature of the air conditioner based on an area level of the area and a user number level of the user number;
the controller further configured to: if the area is larger than a first preset area threshold value, the area grade is a first area grade; if the area is not smaller than a second preset area threshold and not larger than a first preset area threshold, the area grade is a second area grade; if the user number is greater than a first preset user number threshold, the user number grade is a first user number grade; if the user number is not less than a second preset user number threshold and not greater than a first preset user number threshold, the user number grade is a second user number grade;
the controller is specifically configured to: if the area grade is the first area grade and the user number grade is the first user number grade, and the current operation mode of the air conditioner is a refrigeration mode, subtracting a first preset adjusting temperature from the set temperature; if the area grade is the first area grade and the user number grade is the first user number grade, and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the first preset adjusting temperature; if the area grade is the second area grade and the user number grade is the second user number grade, and the current operation mode of the air conditioner is a refrigeration mode, subtracting a second preset adjusting temperature from the set temperature; if the area grade is the second area grade and the user number grade is the second user number grade, and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the second preset adjusting temperature;
the controller further configured to: acquiring a user clothing amount of a user in the indoor environment, wherein the user clothing amount is determined according to a body surface temperature distribution image of the user, and comprises a first clothing amount, a second clothing amount and a third clothing amount, wherein the first clothing amount is larger than the second clothing amount, and the second clothing amount is larger than the third clothing amount; adjusting an operation mode of the air conditioner based on the indoor ambient temperature, the indoor ambient humidity, and a user clothing amount;
if the indoor environment temperature is higher than a third preset indoor environment temperature, the indoor environment humidity is higher than a preset indoor environment humidity, and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to a preset dehumidification mode, and adjusting the operation wind speed of the air conditioner to a preset high wind mode; if the indoor environment temperature is higher than a fourth preset indoor environment temperature, the indoor environment humidity is higher than the preset indoor environment humidity, and the clothes amount of the user is the second clothes amount, the operation mode of the air conditioner is adjusted to be the preset dehumidification mode, and the operation wind speed of the air conditioner is adjusted to be the preset wind stroke mode.
2. The air conditioner of claim 1, wherein the controller is specifically configured to: if the indoor environment temperature is not greater than a first preset indoor environment temperature and the clothes amount of the user is the first clothes amount, adjusting the operation mode of the air conditioner to be a heating mode; and if the indoor environment temperature is not less than a second preset indoor environment temperature and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to be a refrigeration mode.
3. A control method of an air conditioner is applied to the air conditioner comprising a refrigerant circulation loop, a compressor, an outdoor heat exchanger, an indoor environment temperature sensor, an indoor humidity sensor, an infrared imaging sensor and a controller, and is characterized by comprising the following steps: determining the area of an indoor environment and the number of users in the indoor environment according to the infrared imaging sensor; adjusting a set temperature of the air conditioner based on an area level of the area and a user number level of the user number;
before adjusting the set temperature of the air conditioner based on the area level of the area and the user number level of the user number, the method further comprises the following steps: if the area is larger than a first preset area threshold value, the area grade is a first area grade; if the area is not smaller than a second preset area threshold and not larger than a first preset area threshold, the area grade is a second area grade; if the user number is greater than a first preset user number threshold, the user number grade is a first user number grade; if the user quantity is not less than a second preset user quantity threshold and not greater than a first preset user quantity threshold, the user quantity grade is a second user quantity grade;
adjusting the set temperature of the air conditioner based on the area grade of the area and the user quantity grade of the user quantity, specifically: if the area grade is the first area grade and the user number grade is the first user number grade, and the current operation mode of the air conditioner is a refrigeration mode, subtracting a first preset adjusting temperature from the set temperature; if the area grade is the first area grade and the user number grade is the first user number grade, and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the first preset adjusting temperature; if the area grade is the second area grade and the user number grade is the second user number grade, and the current operation mode of the air conditioner is a refrigeration mode, subtracting a second preset adjusting temperature from the set temperature; if the area grade is the second area grade and the user number grade is the second user number grade, and the current operation mode of the air conditioner is a heating mode, increasing the set temperature by the second preset adjusting temperature;
further comprising: acquiring a user clothing amount of a user in the indoor environment, wherein the user clothing amount is determined according to a body surface temperature distribution image of the user, and comprises a first clothing amount, a second clothing amount and a third clothing amount, wherein the first clothing amount is larger than the second clothing amount, and the second clothing amount is larger than the third clothing amount; adjusting an operation mode of the air conditioner based on the indoor ambient temperature, the indoor ambient humidity, and a user clothing amount;
if the indoor environment temperature is higher than a third preset indoor environment temperature, the indoor environment humidity is higher than a preset indoor environment humidity, and the clothes amount of the user is the third clothes amount, adjusting the operation mode of the air conditioner to a preset dehumidification mode, and adjusting the operation wind speed of the air conditioner to a preset high wind mode; if the indoor environment temperature is higher than a fourth preset indoor environment temperature, the indoor environment humidity is higher than the preset indoor environment humidity, and the clothes amount of the user is the second clothes amount, the operation mode of the air conditioner is adjusted to be the preset dehumidification mode, and the operation wind speed of the air conditioner is adjusted to be the preset wind stroke mode.
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Address after: No.1, Hisense Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province 266700 Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: No.1, Hisense Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province 266700 Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
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