CN112944617A - Control method and device for air conditioner and air conditioner - Google Patents
Control method and device for air conditioner and air conditioner Download PDFInfo
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- CN112944617A CN112944617A CN202110130391.9A CN202110130391A CN112944617A CN 112944617 A CN112944617 A CN 112944617A CN 202110130391 A CN202110130391 A CN 202110130391A CN 112944617 A CN112944617 A CN 112944617A
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- 239000003507 refrigerant Substances 0.000 claims abstract description 163
- 239000007788 liquid Substances 0.000 claims abstract description 103
- 230000036760 body temperature Effects 0.000 claims abstract description 67
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- 238000004590 computer program Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
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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
- 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
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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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
-
- 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
- F24F2120/14—Activity of occupants
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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
- F25B2600/00—Control issues
- F25B2600/05—Refrigerant levels
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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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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
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- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent household appliances, and discloses a control method for an air conditioner, wherein the air conditioner comprises a throttle valve arranged at the inlet end of a capillary tube and a liquid storage tank arranged on a branch between the throttle valve and a condenser, and the control method comprises the following steps: acquiring the human body temperature and the environmental temperature in the space where the air conditioner is located; determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located; and adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage capacity in the liquid storage tank to the target storage capacity. The opening of the throttle valve and the refrigerant circulation volume in the air conditioner can be adjusted under the condition that the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is different, the utilization rate of energy sources is improved, and the energy efficiency of the air conditioner is improved. The present application also discloses a control for an air conditioner. An apparatus and an air conditioner.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a control method and device for an air conditioner and the air conditioner.
Background
A window type air conditioner is a small air conditioner that can be mounted on a window. The window type air conditioner is an integrated machine integrating an evaporator, a condenser and other components, and has simple structure and convenient installation. With the continuous improvement of living standard of people, the requirement on air treatment equipment is higher and higher.
At present, the refrigerant injection amount of a window type air conditioner is determined by adjusting through repeated tests in the air conditioner research and development process. In the actual operation process, different operation temperatures correspond to different refrigerating capacities, but when the operation temperatures are different, the length of a capillary tube for throttling and pressure reducing in the window type air conditioner cannot be changed, and the refrigerant quantity circulating in the system is also fixed, so that the window type air conditioner cannot adjust the circulating quantity of a throttling device and the refrigerant according to the different temperatures, the energy efficiency of the window type air conditioner is low, the energy utilization rate of the refrigerant is poor, and electric power energy is wasted.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method and device for an air conditioner and the air conditioner, and aims to solve the technical problems of low energy efficiency and poor energy utilization rate of a refrigerant of the air conditioner.
In some embodiments, the air conditioner includes a throttle valve disposed at an inlet end of the capillary tube and a liquid reservoir disposed on a branch between the throttle valve and the condenser, and the control method includes: acquiring the human body temperature and the environmental temperature in the space where the air conditioner is located; determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located; and adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage capacity in the liquid storage tank to the target storage capacity.
In some embodiments, determining the temperature of the human body in the space in which the air conditioner is located comprises: if a plurality of users exist in the space where the air conditioner is located, the average body surface temperature of the users is obtained and used as the human body temperature in the space where the air conditioner is located.
In some embodiments, if there are multiple users in the space where the air conditioner is located, determining the human body temperature in the space where the air conditioner is located includes: acquiring posture information of a plurality of users and determining age stages of the plurality of users; if the age stages of the users represent that children or old people exist in the users, taking the body surface temperature of the children or the old people as the human body temperature in the space where the air conditioner is located; wherein, the posture information comprises height information and posture information.
In some embodiments, determining the temperature of the human body in the space in which the air conditioner is located comprises: when the fact that a biological body exists in a space where an air conditioner is located is determined, characteristic information of the biological body is obtained; and if the class of the organism is determined to be human according to the characteristic information, determining the human body temperature in the space where the air conditioner is located according to the body surface temperature of the organism.
In some embodiments, the characteristic information includes: one or more of position information, altitude information, movement speed, posture information, and limb information.
In some embodiments, determining a target opening of the throttle valve and a target refrigerant storage capacity of the receiver comprises: acquiring an opening information table, wherein the opening information table stores the range of the preset opening of the throttle valve corresponding to the range of different temperature difference values and the range of the preset refrigerant storage amount of the liquid storage tank, wherein each temperature difference value corresponds to a preset opening value of one throttle valve and a preset refrigerant storage amount value of one liquid storage tank; if the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is larger than or equal to a first preset difference value, a first difference value range matched with the first preset difference value, a first preset opening range matched with the first difference value range and a first preset refrigerant storage range are obtained from the opening information table, the minimum opening in the first opening range is determined as the target opening of the throttling valve, and the minimum refrigerant storage in the first refrigerant storage range is determined as the target storage of the liquid storage tank.
In some embodiments, determining a target opening of the throttle valve and a target refrigerant storage capacity of the receiver further comprises: if the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is smaller than or equal to a second preset difference value, acquiring a second difference value range matched with the second preset difference value, a second preset opening range and a second preset refrigerant storage range matched with the second difference value range from the opening information table, determining the maximum opening in the second opening range as the target opening of the throttling valve, and determining the maximum refrigerant storage in the second refrigerant storage range as the target storage of the liquid storage tank; wherein the first preset difference is smaller than the second preset difference.
In some embodiments, the control method further comprises: and determining the air speed operation mode of the air conditioner matched with the target opening and the target refrigerant storage amount of the liquid storage tank according to the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank.
In some embodiments, the air conditioner includes a throttle valve provided at an inlet end of the capillary tube and a liquid reservoir provided on a branch between the throttle valve and the condenser, and the control device includes: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire the human body temperature and the ambient temperature in the space where the air conditioner is located; the determining module is configured to determine a target opening of the throttle valve and a target refrigerant storage capacity of the liquid storage tank according to a temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located; and the adjusting module is configured to adjust the opening of the throttle valve to a target opening and adjust the refrigerant storage amount in the liquid storage tank to the target storage amount.
In some embodiments, the control device comprises: a processor and a memory storing program instructions, the processor being configured to execute the control method for an air conditioner as provided in the foregoing embodiments when executing the program instructions.
In some embodiments, the air conditioner includes: the control device for an air conditioner as provided in the foregoing embodiments.
The control method and device for the air conditioner and the air conditioner provided by the embodiment of the disclosure can achieve the following technical effects:
the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank can be determined according to the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located, the opening of the throttle valve is adjusted to the target opening, and the refrigerant storage amount in the liquid storage tank is adjusted to the target storage amount. Therefore, the opening degree of the throttle valve and the refrigerant circulation quantity in the air conditioner can be adjusted according to different temperature difference values of the human body temperature and the environment temperature in the space where the air conditioner is located, the utilization rate of energy is improved, the energy efficiency of the air conditioner is improved, and electric quantity is saved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic structural diagram of an air conditioner provided in an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a control method for an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a control device for an air conditioner according to an embodiment of the present disclosure
Fig. 4 is a schematic diagram of another control device for an air conditioner according to an embodiment of the present disclosure.
Reference numerals:
001. an evaporator; 002. a condenser; 003. a capillary tube; 004. a throttle valve;
005. a liquid storage tank; 006. a first check valve; 007. a second one-way valve.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 1, the air conditioner includes an evaporator 001, a condenser 002, a capillary tube 003 connected between the evaporator 001 and the condenser 002, a throttle valve 004 disposed at an inlet end of the capillary tube 003, and a liquid storage tank 005 disposed on a branch between the throttle valve 004 and the condenser 002. The opening degree of the throttle valve 004 can be adjusted. Alternatively, a throttle valve may also be provided at the outlet end of the capillary tube 003. The liquid storage tank 005 is used for storing redundant refrigerants in the air conditioner operation process, or, supplements the refrigerants in the air conditioner operation process, specifically, in order to realize the adjustment of the refrigerant memory space in the liquid storage tank 005, the air conditioner further comprises a first check valve 006 connected with the liquid inlet end of the liquid storage tank 005 and a second check valve 007 connected with the liquid outlet end of the liquid storage tank 005, the refrigerant memory space in the liquid storage tank 005 is adjusted through the opening or closing of the first check valve and the closing or opening of the second check valve, and therefore the refrigerant circulation amount in the air conditioner operation process can be changed. Optionally, in the cooling mode, the larger the cooling capacity is, the smaller the opening of the throttle valve is, and the smaller the refrigerant storage capacity of the liquid storage tank is. Alternatively, the air conditioner provided in the embodiments of the present disclosure may be a window type air conditioner.
Accordingly, the embodiment of the present disclosure provides an air conditioner control scheme, which is helpful for adjusting the opening of the throttle valve and the refrigerant circulation amount in the air conditioner under the condition that the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located changes, so as to improve the energy utilization rate and the energy efficiency of the air conditioner. Specifically, in practical application, the human body temperature and the environment temperature in the space where the air conditioner is located can be obtained, the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank are determined according to the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located, the opening of the throttle valve is adjusted to the target opening, the refrigerant storage amount in the liquid storage tank is adjusted to the target storage amount, and the air conditioner is enabled to operate under the condition, so that the energy efficiency is improved.
Fig. 2 is a schematic diagram of a control method for an air conditioner according to an embodiment of the present disclosure. Referring to fig. 2, an embodiment of the present disclosure provides a control method for an air conditioner, including:
and S11, acquiring the human body temperature and the ambient temperature in the space where the air conditioner is located.
And S12, determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the temperature difference between the human body temperature and the environment temperature in the space where the air conditioner is located.
And S13, adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage amount in the liquid storage tank to a target storage amount.
In step S11, the human body temperature and the ambient temperature in the space where the air conditioner is located may be acquired.
In one example of the present solution, a human body infrared detection device may be provided at the side of the air-conditioning indoor unit, or a human body infrared detection device may be provided in a space where the side of the air-conditioning indoor unit is located, for detecting the current human body temperature. In another example, the approach may be simple and reliable by obtaining a body temperature detected by a wearable device on the body.
Alternatively, a temperature sensing device, specifically, a temperature sensor may be provided on the indoor unit side of the air conditioner to detect the ambient temperature in the space where the air conditioner is located.
Alternatively, the human body temperature and the ambient temperature in the space where the air conditioner is located may be periodically obtained by setting the detection period. For example, the detection period may be set to detect once every ten minutes.
In step S12, a target opening of the throttle valve and a target refrigerant storage amount of the accumulator may be determined according to a temperature difference between a human body temperature and an ambient temperature in a space where the air conditioner is located.
In this scheme, when the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is large, that is, the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is greater than a first preset temperature value, it is indicated that cooling capacity needs to be rapidly provided for the space at this time, so that the ambient temperature is rapidly reduced to reach the temperature set by the air conditioner or reach the temperature at which the human body feels comfortable, at this time, the target opening of the throttle valve needs to be determined to be a small opening, and meanwhile, the storage amount of the refrigerant in the liquid storage tank is small. In this process, the purpose of determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located can be achieved in various ways, which is exemplified below. In one example, each difference may correspond to a target opening of the throttle valve and a target refrigerant storage capacity of the receiver.
In step S13, the control may be such that the opening of the throttle valve is adjusted to a target opening, and the refrigerant storage amount in the tank is adjusted to a target storage amount.
In the scheme, the air conditioner is enabled to operate under the condition, so that the energy efficiency of the air conditioner and the utilization rate of refrigerant energy can be improved. Therefore, under the condition that the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is changed, the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank are correspondingly changed, so that the adjustment of the opening of the throttle valve and the adjustment of the refrigerant circulation amount in the air conditioner can be realized according to different temperatures in different operation modes, and the utilization rate of energy and the energy efficiency of the air conditioner are improved.
Optionally, as another optional scheme provided by the embodiment of the present disclosure, a first difference may be determined according to the target temperature and the indoor environment temperature of the space where the air conditioner is located, and a target opening of the throttle valve and a target refrigerant storage amount of the liquid storage tank may be determined according to a second difference between the indoor environment temperature of the space where the air conditioner is located and the human body temperature of the space where the air conditioner is located, so as to further improve accuracy of adjustment of the opening of the throttle valve and adjustment of the refrigerant storage amount of the liquid storage tank by the air conditioner. The second difference is the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located in the above embodiment.
By adopting the control method for the air conditioner, the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank can be determined according to the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located, the opening of the throttle valve is adjusted to the target opening, and the refrigerant storage capacity in the liquid storage tank is adjusted to the target storage capacity. Therefore, the opening degree of the throttle valve and the refrigerant circulation quantity in the air conditioner can be adjusted under the condition that the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is changed, the utilization rate of energy is improved, the energy efficiency of the air conditioner is improved, and electric energy can be saved.
Optionally, determining the human body temperature in the space where the air conditioner is located includes: if a user exists in the space where the air conditioner is located, acquiring the body surface temperature of the user as the human body temperature in the space where the air conditioner is located; if a plurality of users exist in the space where the air conditioner is located, the average body surface temperature of the users is obtained and used as the human body temperature in the space where the air conditioner is located, or a target user is determined from the users, and the body surface temperature of the target user is used as the human body temperature in the space where the air conditioner is located.
In the scheme, when a plurality of users exist in the space where the air conditioner is located, the average body surface temperatures for multiple purposes can be obtained to serve as the human body temperature in the space where the air conditioner is located, so that the differentiation requirements of the users are met, and the comfort of the users is improved.
In some embodiments, if there are multiple users in the space where the air conditioner is located, determining the human body temperature in the space where the air conditioner is located includes: acquiring posture information of a plurality of users and determining age stages of the plurality of users; if the age stages of the users represent that children or old people exist in the users, taking the body surface temperature of the children or the old people as the human body temperature in the space where the air conditioner is located; wherein, the posture information comprises height information and posture information.
In the scheme, the age stages of a plurality of users can be determined by acquiring the posture information of the plurality of users; and if the age stages of the users represent that children or old people exist in the users, taking the body surface temperature of the children or the old people as the human body temperature in the space where the air conditioner is located.
In one example, an infrared thermal imaging sensor may be provided on the indoor side of the air conditioner. The infrared thermal imaging sensor utilizes an infrared detector and an optical imaging objective lens to receive an infrared radiation energy distribution pattern of a detected target and reflect the infrared radiation energy distribution pattern on a photosensitive element of the infrared detector, so that an infrared thermal image is obtained, and the thermal image corresponds to a thermal distribution field on the surface of an object. Thermal imagers, by its most popular means, convert the invisible infrared energy emitted by an object into a visible thermal image. The different colors on the top of the thermal image represent the different temperatures of the object being measured. Therefore, thermal imaging images of a plurality of users can be obtained, and the posture information of the users is obtained by analyzing the height information and the posture information of the human bodies in the thermal imaging images, so that the age stage of the users is determined. For example, if the height of the user is about 170 cm and the posture of the user is humpback, it can be determined that the age stage of the user indicates that the user is an elderly person, and the body surface temperature of the user is determined as the body temperature. Therefore, the comfort of the air conditioner to people of special ages is improved. Optionally, the contour information of the user can be further judged according to the thermal imaging image, so that the judgment accuracy is improved.
Optionally, determining the human body temperature in the space where the air conditioner is located includes: when the fact that a biological body exists in a space where an air conditioner is located is determined, characteristic information of the biological body is obtained; and if the class of the organism is determined to be human according to the characteristic information, determining the human body temperature in the space where the air conditioner is located according to the body surface temperature of the organism.
In the scheme, the type of the living body can be distinguished according to the acquired characteristic information of the living body, and if the type of the living body is determined to be human according to the characteristic information, the human body temperature in the space where the air conditioner is located is determined according to the body surface temperature of the living body.
Further, the characteristic information includes: one or more of position information, altitude information, movement speed, posture information, body surface temperature information, and limb information.
In this aspect, it is possible to more effectively determine that the living body in the space where the air conditioner is located is a human being based on the characteristic information, thereby providing a better service to the user. In one example, a radar detection device may be provided on the air-conditioning indoor unit side to acquire one or more of position information, height information, moving speed, posture information, body surface temperature information, and limb information of a living body. Alternatively, the posture information may display contour information and gait information of the user. With the scheme, the misjudgment caused when a pet intrudes into the space where the air conditioner is located can be prevented.
In some embodiments, determining a target opening of the throttle valve and a target refrigerant storage capacity of the receiver comprises: acquiring an opening information table, wherein the opening information table stores the range of the preset opening of the throttle valve corresponding to the range of different temperature difference values and the range of the preset refrigerant storage amount of the liquid storage tank, wherein each temperature difference value corresponds to a preset opening value of one throttle valve and a preset refrigerant storage amount value of one liquid storage tank; if the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is larger than or equal to a first preset difference value, a first difference value range matched with the first preset difference value, a first preset opening range matched with the first difference value range and a first preset refrigerant storage range are obtained from the opening information table, the minimum opening in the first opening range is determined as the target opening of the throttling valve, and the minimum refrigerant storage in the first refrigerant storage range is determined as the target storage of the liquid storage tank.
In this aspect, the target opening degree of the throttle valve may be determined from the opening degree information table.
Table 1-1 is a partial opening degree information table. With reference to table 1-1, for example, when the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is 9 ℃, a first difference range matching 9 ℃ may be obtained in the opening information table as being greater than or equal to 8 ℃, and a first preset opening range 11 ° to 20 ° and a first preset refrigerant storage range 41g to 50g matching the first difference range, at this time, the minimum opening 11 ° in the first opening range may be determined as the target opening of the throttle valve, and the minimum refrigerant storage range 41g in the first refrigerant storage range may be determined as the target storage of the liquid storage tank.
TABLE 1-1
In some embodiments, determining a target opening of the throttle valve and a target refrigerant storage capacity of the receiver further comprises: if the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is smaller than or equal to a second preset difference value, acquiring a second difference value range matched with the second preset difference value, a second preset opening range and a second preset refrigerant storage range matched with the second difference value range from the opening information table, determining the maximum opening in the second opening range as the target opening of the throttling valve, and determining the maximum refrigerant storage in the second refrigerant storage range as the target storage of the liquid storage tank; wherein the first preset difference is smaller than the second preset difference.
With reference to table 1-1, for example, when the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is 1.8 ℃, a first difference range matching 1.8 ℃ may be acquired in the opening information table as 2 ℃ or less, and a first preset opening range matching the first difference range is 81 ° to 90 ° and a first preset refrigerant storage range 161g to 185g, at this time, the maximum opening 90 ° in the second opening range may be determined as the target opening of the throttle valve, and the minimum storage 180g in the first refrigerant storage range may be determined as the target storage of the liquid storage tank.
In this scheme, the first preset difference is smaller than the second preset difference. When the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is between the first preset difference value and the second preset difference value, a third preset opening range and a third preset refrigerant storage range which are matched with the difference value can be selected, the middle value in the third preset opening range is used as the target opening of the throttling valve, and the middle value in the third preset refrigerant storage range is used as the target refrigerant storage of the liquid storage tank.
Optionally, after determining the target refrigerant storage amount of the liquid storage tank, the method further includes: and measuring the refrigerant storage capacity of the liquid storage tank at the moment, and determining the amount of the refrigerant flowing into the liquid storage tank or the amount of the refrigerant flowing out of the liquid storage tank by calculating the difference value between the target refrigerant storage capacity of the liquid storage tank and the refrigerant storage capacity of the liquid storage tank at the moment so as to simplify the adjustment of the refrigerant storage capacity of the liquid storage tank.
Optionally, in order to realize the regulation of the refrigerant memory space in the liquid storage tank, the air conditioner still includes the first check valve that is connected with liquid storage pot inlet end and the second check valve that is connected with liquid storage pot outlet end, adjusts the refrigerant memory space in the liquid storage tank to the target memory space, includes: controlling the first one-way valve to be opened and the second one-way valve to be closed so as to enable the refrigerant to flow into the liquid storage tank, and controlling the first one-way valve to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner; or the first one-way valve is controlled to be closed, the second one-way valve is controlled to be opened so that the refrigerant flows out of the liquid storage tank, and the second one-way valve is controlled to be closed when the refrigerant storage capacity of the liquid storage tank is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner.
In the scheme, the adjustment of the refrigerant storage capacity in the liquid storage tank can be realized by the method, so that the refrigerant storage capacity in the liquid storage tank is adjusted to the target refrigerant storage capacity. In one example, a sensing device, specifically a gravity sensor or a pressure sensor, may be mounted at the bottom of the fluid reservoir. For example, when the refrigerant needs to flow to the liquid storage tank, the first check valve is controlled to be opened, the second check valve is controlled to be closed, and when the refrigerant storage amount of the liquid storage tank detected by the sensing device is matched with the difference value between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner, the first check valve is controlled to be closed, and the second check valve is controlled to be closed; when the refrigerant needs to flow out of the liquid storage tank, the second one-way valve is controlled to be opened, the first one-way valve is controlled to be closed, and when the refrigerant storage capacity of the liquid storage tank detected by the sensing device is matched with the difference value between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner, the second one-way valve is controlled to be closed, and the first one-way valve is controlled to be closed. The matching of the refrigerant storage capacity of the liquid storage tank with the difference between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner means that the refrigerant storage capacity of the liquid storage tank is equal to the difference between the refrigerant injection quantity of the air conditioner and the target refrigerant circulation quantity of the air conditioner; or, if a preset difference range of the difference between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner is prestored, and if the difference between the refrigerant storage amount of the liquid storage tank and the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner is within the preset range, the refrigerant storage amount of the liquid storage tank is matched with the difference between the refrigerant injection amount of the air conditioner and the target refrigerant circulation amount of the air conditioner.
In another example, a flow rate detection device and a timing device may be further provided at the first check valve and the second check valve. After the target refrigerant storage capacity of the liquid storage tank is determined, the amount of the refrigerant in the current liquid storage tank can be determined, the amount of the refrigerant to flow into or flow out of the liquid storage tank in the calculation of the refrigerant difference value of the refrigerant and the target refrigerant storage capacity of the liquid storage tank can be determined, and the amount of the refrigerant flowing into or flowing out of the liquid storage tank can be determined by measuring the flow rate and the time of the refrigerant passing through the first check valve/the second check valve. For example, when the refrigerant needs to flow to the liquid storage tank, the first check valve is controlled to be opened, the second check valve is controlled to be closed, the flow rate of the refrigerant passing through the first check valve is detected, the amount of the refrigerant flowing through the first check valve per second is calculated, after a period of time, the amount of the refrigerant flowing into the liquid storage tank through the first check valve is matched with the refrigerant difference value, the first check valve is controlled to be closed, and the second check valve is controlled to be closed; when the refrigerant needs to flow out of the liquid storage tank, the second one-way valve is controlled to be opened, the first one-way valve is controlled to be closed, the flow rate of the refrigerant passing through the second one-way valve is detected, the amount of the refrigerant flowing through the first one-way valve every second is calculated, after a period of time, the amount of the refrigerant flowing out of the liquid storage tank through the second one-way valve is matched with the refrigerant difference value, the second one-way valve is controlled to be closed, and the first one-way valve is closed. The refrigerant quantity flowing into the liquid storage tank through the first check valve is matched with the refrigerant difference value, namely the refrigerant quantity flowing into the liquid storage tank through the first check valve is equal to the refrigerant difference value; or, if the preset range of the refrigerant difference value is prestored, if the amount of the refrigerant flowing into the liquid storage tank through the first check valve is within the preset range of the refrigerant difference value, it is indicated that the amount of the refrigerant flowing into the liquid storage tank through the first check valve is matched with the refrigerant difference value. In addition, the meaning that the quantity of the refrigerant flowing out of the liquid storage tank through the second one-way valve is matched with the refrigerant difference value is as described above, and the description is omitted here.
Optionally, the control method for an air conditioner further includes: and determining the air speed operation mode of the air conditioner matched with the target opening and the target refrigerant storage amount of the liquid storage tank according to the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank.
In the scheme, the air speed operation mode of the air conditioner matched with the target opening and the target refrigerant storage capacity of the liquid storage tank can be determined according to the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank. In practical application, the determination of the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank is equivalent to the determination of the operation mode of the air conditioner. This will be explained in detail below. For example, when the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is large, that is, the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is greater than or equal to a first preset temperature value, it is indicated that cooling energy needs to be rapidly provided for the space at this time, so that the ambient temperature is rapidly reduced to reach the temperature set by the air conditioner or reach the temperature at which the human body feels comfortable, at this time, the target opening of the throttle valve needs to be determined to be a small opening, and meanwhile, the storage amount of the refrigerant in the liquid storage tank is also small. In this case, the air speed operation mode of the air conditioner may be a high wind shield mode in order to further accelerate the adjustment of the ambient temperature in the space where the air conditioner is located. Or the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is small, that is, the temperature difference between the human body temperature and the ambient temperature in the space where the air conditioner is located is less than or equal to a second preset temperature value, which indicates that the ambient temperature can be slowly adjusted at this time, the target opening of the throttle valve needs to be determined as a large opening, and meanwhile, the storage amount of the refrigerant in the liquid storage tank is also large. In this case, the comfort of the air conditioner is improved, and the air speed operation mode of the air conditioner can be set to the low windshield mode. Or when the temperature difference between the human body temperature and the environment temperature in the space where the air conditioner is located is smaller than the first temperature difference and larger than the second temperature difference, the wind speed operation mode of the air conditioner can be the medium-wind-gear mode.
Fig. 3 is a schematic diagram of a control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 3, the present disclosure provides a control apparatus for an air conditioner including a throttle valve disposed at an inlet end of a capillary tube and a liquid storage tank disposed on a branch between the throttle valve and a condenser, the control apparatus including an obtaining module 10, a determining module 20, and an adjusting module 30. The acquisition module 10 is configured to acquire a human body temperature and an ambient temperature in a space where the air conditioner is located. The determining module 20 is configured to determine a target opening of the throttle valve and a target refrigerant storage amount of the liquid storage tank according to a temperature difference between a human body temperature and an ambient temperature in a space where the air conditioner is located. The adjusting module 30 is configured to adjust an opening of the throttle valve to a target opening and adjust a refrigerant storage amount in the liquid storage tank to a target storage amount.
Fig. 4 is a schematic diagram of another control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 4, an embodiment of the present disclosure provides a control device for an air conditioner, including a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the control method for the air conditioner of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the control method for the air conditioner in the above-described embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the control device for the air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for an air conditioner.
The disclosed embodiments provide a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the above-described control method for an air conditioner.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A control method for an air conditioner, the air conditioner including a throttle valve provided at an inlet end of a capillary tube and a liquid reservoir provided on a branch between the throttle valve and a condenser, the control method comprising:
acquiring the human body temperature and the ambient temperature in the space where the air conditioner is located;
determining the target opening of the throttle valve and the target refrigerant storage capacity of the liquid storage tank according to the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located;
and adjusting the opening of the throttle valve to a target opening, and adjusting the refrigerant storage capacity in the liquid storage tank to the target storage capacity.
2. The control method according to claim 1, wherein the determining the human body temperature in the space where the air conditioner is located comprises:
if a plurality of users exist in the space where the air conditioner is located, the average body surface temperature of the users is obtained and used as the human body temperature in the space where the air conditioner is located.
3. The control method according to claim 1, wherein if a plurality of users exist in the space where the air conditioner is located, the determining the human body temperature in the space where the air conditioner is located comprises:
acquiring the posture information of the users and determining the age stages of the users;
if the age stages of the users represent that children or old people exist in the users, taking the body surface temperature of the children or the old people as the human body temperature in the space where the air conditioner is located;
wherein the posture information comprises height information and posture information.
4. The control method according to claim 1, wherein the determining the human body temperature in the space where the air conditioner is located comprises:
when the fact that a biological body exists in a space where the air conditioner is located is determined, feature information of the biological body is obtained;
and if the class of the organism is determined to be a human according to the characteristic information, determining the human body temperature in the space where the air conditioner is located according to the body surface temperature of the organism.
5. The control method according to claim 4, wherein the feature information includes:
one or more of position information, altitude information, movement speed, posture information, body surface temperature information, and limb information.
6. The control method of claim 1, wherein the determining a target opening of the throttle valve and a target refrigerant storage amount of the receiver comprises:
acquiring an opening information table, wherein the opening information table stores ranges of preset openings of throttle valves corresponding to ranges of different temperature differences and ranges of preset refrigerant storage amounts of the liquid storage tanks, and each temperature difference corresponds to a preset opening value of one throttle valve and a preset refrigerant storage amount of one liquid storage tank;
if the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is larger than or equal to a first preset difference value, a first difference value range matched with the first preset difference value, a first preset opening range matched with the first difference value range and a first preset refrigerant storage range are obtained from an opening information table, the minimum opening in the first opening range is determined as the target opening of the throttling valve, and the minimum refrigerant storage in the first refrigerant storage range is determined as the target storage of the liquid storage tank.
7. The control method of claim 6, wherein the determining a target opening of the throttle valve and a target refrigerant storage amount of the receiver further comprises:
if the temperature difference value between the human body temperature and the environment temperature in the space where the air conditioner is located is smaller than or equal to a second preset difference value, acquiring a second difference value range matched with the second preset difference value, a second preset opening range and a second preset refrigerant storage range matched with the second difference value range from an opening information table, determining the maximum opening in the second opening range as the target opening of the throttling valve, and determining the maximum refrigerant storage in the second refrigerant storage range as the target storage of the liquid storage tank;
wherein the first preset difference is smaller than the second preset difference.
8. The control method according to any one of claims 1 to 7, characterized by further comprising:
and determining a wind speed operation mode of the air conditioner matched with the target opening and the target refrigerant storage amount of the liquid storage tank according to the target opening of the throttle valve and the target refrigerant storage amount of the liquid storage tank.
9. A control device for an air conditioner comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the control method for an air conditioner according to any one of claims 1 to 8 when executing the program instructions.
10. An air conditioner characterized by comprising the control device for an air conditioner according to claim 9.
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| WO2023221569A1 (en) * | 2022-05-17 | 2023-11-23 | 青岛海尔空调器有限总公司 | Air conditioning method and apparatus, control device and storage medium |
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