CN105928136B - Air conditioner energy saving control method, control device and air-conditioning - Google Patents

Air conditioner energy saving control method, control device and air-conditioning Download PDF

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Publication number
CN105928136B
CN105928136B CN201610251628.8A CN201610251628A CN105928136B CN 105928136 B CN105928136 B CN 105928136B CN 201610251628 A CN201610251628 A CN 201610251628A CN 105928136 B CN105928136 B CN 105928136B
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China
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frequency
real
wind speed
time
air
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CN105928136A (en
Inventor
许国景
刘聚科
程永甫
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/0001Control or safety arrangements for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/007Ventilation with forced flow
    • F24F7/013Ventilation with forced flow using wall or window fans, displacing air through the wall or window
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/0001Control or safety arrangements for ventilation
    • F24F2011/0002Control or safety arrangements for ventilation for admittance of outside air
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a kind of air conditioner energy saving control method, control device and air-conditionings, the described method includes: operation of air conditioner, real-time indoor environment temperature and setting target temperature are obtained, the temperature difference between the real-time indoor environment temperature and the setting target temperature is calculated, as the real-time temperature difference;PID arithmetic is carried out according to the real-time temperature difference, obtains first frequency, meanwhile, wind speed corresponding with the real-time temperature difference is obtained according to the corresponding relationship of the known temperature difference and wind speed, as real-time wind speed;Frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, as second frequency;It selects the smaller value in the first frequency and the second frequency as target frequency, is run according to the compressor that the target frequency controls air-conditioning.With the application of the invention, the Energy Saving Control of air-conditioning may be implemented.

Description

Air conditioner energy saving control method, control device and air-conditioning
Technical field
The invention belongs to air-conditioning technique fields, specifically, being the air-conditioning equipment for being related to adjusting room air, more It says to body, is to be related to air conditioner energy saving control method, control device and air-conditioning.
Background technique
Air-conditioning summer can freeze, winter can heat, and can adjust room temperature and reach cool in summer and warm in winter, provide for user Comfortable environment.While air-conditioning provides comfort for user, incident is the contradiction with high energy consumption.Energy consumption is not User's financial burden is increased only, it is also opposite with energy-saving and environment-friendly trend.Therefore, how to be provided comfortably using air-conditioning for user The energy consumption that air-conditioning is reduced while environment is that current air conditioner producer has been working hard and solves the problems, such as.
Existing convertible frequency air-conditioner can control compressor operating frequency according to indoor environment temperature and setting target temperature, reach To energy-saving purpose.But it can not achieve according to the control mode that temperature controls compressor operating frequency merely more excellent Energy Saving Control, especially in the case where mutually synthermal, different wind speed operation, it is difficult to reach ideal Energy Saving Control.
Summary of the invention
The object of the present invention is to provide a kind of air conditioner energy saving control method, control device and air-conditionings, realize the energy conservation of air-conditioning Control.
For achieving the above object, air conditioner energy saving control method provided by the invention, which adopts the following technical solutions, gives reality It is existing:
A kind of air conditioner energy saving control method, which comprises
Operation of air conditioner obtains real-time indoor environment temperature and setting target temperature, calculates the real-time indoor environment temperature With it is described setting target temperature between the temperature difference, as the real-time temperature difference;
PID arithmetic is carried out according to the real-time temperature difference, obtains first frequency, meanwhile, according to the known temperature difference and wind speed Corresponding relationship obtains wind speed corresponding with the real-time temperature difference, as real-time wind speed;
Frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, frequently as second Rate;
Select the smaller value in the first frequency and the second frequency as target frequency, according to the target frequency Control the compressor operation of air-conditioning.
Preferably, in the wind speed and the corresponding relationship of frequency, a wind speed corresponds to multiple frequencies, the second frequency For the corresponding maximum frequency of the real-time wind speed.
Method as described above, if the smaller value in the first frequency and the second frequency is greater than setting most high frequency Rate is run then using the setting highest frequency as the target frequency according to the compressor that the target frequency controls air-conditioning.
To realize aforementioned invention purpose, air conditioner energy saving controller provided by the invention, which adopts the following technical solutions, gives reality It is existing:
A kind of air conditioner energy saving controller, described device include:
Indoor environment temperature acquiring unit, for obtaining real-time indoor environment temperature;
Target temperature acquiring unit is set, for obtaining setting target temperature;
Real-time temperature difference acquiring unit, for calculating between the real-time indoor environment temperature and the setting target temperature The temperature difference, as the real-time temperature difference;
PID arithmetic unit obtains for carrying out PID arithmetic according to the real-time temperature difference and exports first frequency;
Real-time wind speed acquiring unit, for being obtained and the real-time temperature difference according to the corresponding relationship of the known temperature difference and wind speed Corresponding wind speed, as real-time wind speed;
Second frequency acquiring unit, for being obtained and the real-time wind speed according to the corresponding relationship of known wind speed and frequency Corresponding frequency, as second frequency;
Compressor frequency obtains and control unit, for selecting the smaller value in the first frequency and the second frequency As target frequency, run according to the compressor that the target frequency controls air-conditioning.
Preferably, in the wind speed and the corresponding relationship of frequency, a wind speed corresponds to multiple frequencies, the second frequency The second frequency that acquiring unit obtains is the corresponding maximum frequency of the real-time wind speed.
Method as described above, if the smaller value in the first frequency and the second frequency is greater than setting most high frequency Rate, the compressor frequency, which is obtained, to be selected with control unit using the setting highest frequency as the target frequency, according to institute State the compressor operation of target frequency control air-conditioning.
In addition, the present invention also provides a kind of air-conditionings with above-mentioned air conditioner energy saving controller.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention calculates indoor environment temperature first and sets the temperature difference between target temperature, carries out PID fortune according to the temperature difference It calculates, obtains first frequency;Meanwhile the real-time wind speed of air-conditioning is determined according to the temperature difference, and corresponding frequency is determined according to real-time wind speed Rate, as second frequency;Then, it selects the smaller value in first frequency and second frequency as target frequency, controls air-conditioning pressure The operation of contracting machine.That is, the cooperation between temperature difference factor and wind speed factor has been comprehensively considered when carrying out frequency control to compressor, So that the air-flow of blower operating driving is formed by heat during driving heat exchange amount caused by refrigerant when compressor is run and being somebody's turn to do Exchange capacity matches, avoid that press frequency is excessively high or rotation speed of fan it is excessively high caused by meaningless energy consumption, realize the energy conservation of air-conditioning Operation.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear Chu.
Detailed description of the invention
Fig. 1 is the flow chart of air conditioner energy saving control method one embodiment of the present invention;
Fig. 2 is the structural block diagram of air conditioner energy saving controller one embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples, Invention is further described in detail.
Referring to Figure 1, which show the flow chart of air conditioner energy saving control method one embodiment of the present invention.
As shown in Figure 1, the method that the embodiment realizes air conditioner energy saving control is realized using the process with following step:
Step 11: operation of air conditioner obtains real-time indoor environment temperature and setting target temperature, calculates real-time indoor environment temperature The temperature difference between degree and setting target temperature, as the real-time temperature difference.
Specifically, when air-conditioning is switched on and runs, the indoor environment temperature in room locating for real-time detection air-conditioning, real-time detection Temperature as real-time indoor environment temperature.So-called real-time indoor environment temperature refers to after air-conditioning booting operation, according to setting Determine the indoor environment temperature that temperature uses frequency constantly to obtain and update.The acquisition of real-time indoor environment temperature can use existing Technology is realized.For example, by the way that air-conditioning air inlet is arranged in or close to the temperature sensor detection air inlet temperature of air-conditioning air inlet Degree, the master control borad of air-conditioning passes through the output signal of temperature collection sensor and is handled, to get inlet air temperature, and will The temperature is as real-time indoor environment temperature.
Setting target temperature, which refers to, wishes that the attainable target temperature of indoor environment institute, the setting target temperature can be use Family passes through the temperature value that remote controler or control terminal for air conditioner or air-conditioning panel are inputted, and it is automatic to be also possible to air-conditioning master control borad The setting value called.Regardless of the temperature value is set using which kind of mode, can be got by air-conditioning master control borad.
Master control borad calculates the temperature difference between the two after getting real-time indoor environment temperature and setting target temperature, As the real-time temperature difference.
Step 12: PID arithmetic being carried out according to the real-time temperature difference, obtains first frequency;According to pair of the known temperature difference and wind speed Relation acquisition wind speed corresponding with the real-time temperature difference is answered, as real-time wind speed.
After step 11 obtains the real-time temperature difference, PID arithmetic is carried out according to the real-time temperature difference, what acquisition controlled compressor One frequency, and the frequency is defined as first frequency.Wherein, PID arithmetic carried out according to the temperature difference, obtain and compressor is controlled The specific method of the target frequency of system can be realized using the prior art, be not elaborated and limited herein.
Meanwhile wind speed corresponding with the real-time temperature difference is obtained also according to the corresponding relationship of the known temperature difference and wind speed, as reality When wind speed.Specifically, the corresponding relationship of the temperature difference and wind speed is previously stored in the memory of air-conditioning master control borad, wherein temperature Difference refers to indoor environment temperature and sets the temperature difference between target temperature, and wind speed refers to the speed of indoor unit fan of air conditioner operating Degree.For the different temperature difference, it is corresponding with not exactly the same or complete different wind speed.Also, it is preferred that, the temperature difference and wind speed Corresponding relationship be by research staff under theoretical direction, it is obtained by a large amount of operation of air conditioner simulated experiment, can to the greatest extent can Air-conditioning comfort and energy saving can be taken into account.Therefore, corresponding with wind speed from the temperature difference after step 11 obtains the real-time temperature difference The real-time temperature difference is first found in relationship, then obtains wind speed corresponding to the real-time temperature difference, and using the wind speed as real-time wind speed.
Step 13: frequency corresponding with real-time wind speed being obtained according to known wind speed and the corresponding relationship of frequency, as the Two frequencies.
Specifically, being also previously stored with the corresponding relationship of wind speed and frequency in the memory of air-conditioning master control borad, wherein Wind speed refers to that the speed of indoor unit fan of air conditioner operating, frequency refer to the running frequency of compressor.It is corresponding for different wind speed There is different frequencies.Also, it is preferred that, the corresponding relationship of wind speed and frequency be by research staff under theoretical direction, through excessive The operation of air conditioner simulated experiment of amount is obtained, can take into account air-conditioning comfort and energy saving as far as possible.Establish wind speed with The starting point of the corresponding relationship of frequency are as follows: for air-conditioning system, if indoor machine fan revolving speed is certain, blower operating is driven Dynamic air-flow is certain, that is, air quantity is certain;Air quantity is certain, the heat exchange formed when passing through indoor set heat exchanger with heat exchanger Ability is certain.If compressor operating frequency is too small, refrigerant circulation is very few, can reduce the exchange capability of heat of indoor heat exchanger, make Indoor supply air temperature is obtained to be not suitable for.And if compressor operating frequency is excessive, refrigerant circulation is big, indoor heat exchanger exchange capability of heat Greatly, but since the air quantity generated under certain interior machine revolving speed is too small, heat exchanger heat exchange efficiency decline, and the big function of compressor be will lead to Rate operation waste energy consumption.Therefore, it is necessary to and restriction corresponding with frequency work to wind speed.
Therefore, after step 12 obtains real-time wind speed, real-time wind is first found from wind speed and the corresponding relationship of frequency Then speed obtains frequency corresponding to the real-time wind speed, and using the frequency as second frequency.
Moreover, a wind speed may correspond to a frequency, it is also possible to corresponding multiple frequencies.If a wind speed corresponds to more A frequency namely a real-time wind speed are corresponding with multiple frequencies, in this case, selecting the maximum frequency in multiple frequencies as Two frequencies.
Step 14: selecting the smaller value in first frequency and second frequency as target frequency, controlled according to target frequency The compressor of air-conditioning is run.
Specifically, the second frequency that the first frequency and step 13 that comparison step 12 obtains obtain selects in the two Smaller value is run as target frequency according to the compressor that target frequency controls air-conditioning.
Frequency of air condition compressor is controlled using the above method, has been comprehensively considered between temperature difference factor and wind speed factor Cooperation, so that the air-flow of blower operating driving is formed during driving heat exchange amount caused by refrigerant when compressor is run and being somebody's turn to do Heat exchange amount match, avoid that press frequency is excessively high or rotation speed of fan it is excessively high caused by meaningless energy consumption, realize air-conditioning Energy-saving run.Meanwhile also improving the comfort of air-supply.
Embodiment more preferably is previously stored with a setting highest frequency in the memory of air-conditioning master control borad, If step 14 determines that the smaller value in first frequency and second frequency is greater than setting highest frequency, setting highest frequency is made For target frequency.That is, either which frequency to control compressor according to, the running frequency of guarantee compressor is no more than Set highest frequency.
Fig. 2 is referred to, the figure shows the structural block diagrams of air conditioner energy saving controller one embodiment of the present invention.
As shown in Fig. 2, the structural unit and its function that the air conditioner energy saving controller of the embodiment is included are as follows:
Indoor environment temperature acquiring unit 21, for obtaining real-time indoor environment temperature.
Target temperature acquiring unit 22 is set, for obtaining setting target temperature.
Real-time temperature difference acquiring unit 23, for calculating the real-time indoor environment temperature of the output of indoor environment temperature acquiring unit 21 The temperature difference between setting target temperature that degree and setting target temperature acquiring unit 22 obtain, and as the real-time temperature difference.
PID arithmetic unit 24, the real-time temperature difference for being exported according to real-time temperature difference acquiring unit 23 carry out PID arithmetic, obtain It obtains and exports first frequency.
Real-time wind speed acquiring unit 25, is obtained for being obtained according to the corresponding relationship of the known temperature difference and wind speed with the real-time temperature difference The corresponding wind speed of the real-time temperature difference for taking unit 23 to export, and as real-time wind speed.
Second frequency acquiring unit 26 is obtained for being obtained according to the corresponding relationship of known wind speed and frequency with real-time wind speed The corresponding frequency of real-time wind speed for taking unit 25 to export, and as second frequency.
Compressor frequency obtains and control unit 27, the first frequency and second for selecting PID arithmetic unit 24 to export Frequency acquisition unit 26 export second frequency in smaller value as target frequency, and according to target frequency control air-conditioning pressure The operation of contracting machine.
As preferred embodiment, in the corresponding relationship of wind speed and frequency, a wind speed can correspond to multiple frequencies.This In the case of, the second frequency that second frequency acquiring unit 26 obtains is the corresponding maximum frequency of real-time wind speed.
Embodiment more preferably, if the smaller value in first frequency and second frequency is greater than setting highest frequency, Then compressor frequency is obtained selects to control setting highest frequency as target frequency, and according to target frequency with control unit 27 The compressor of air-conditioning is run.
Each structural unit in above-mentioned apparatus runs corresponding software program, and executes air conditioner energy saving according to the process of Fig. 1 Control, realizes the energy-saving run of air-conditioning.
Moreover, the air conditioning control device of Fig. 2 can be applied in air-conditioning, the air-conditioning with energy-saving run function is formed.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited;Although referring to aforementioned reality Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these are modified or replace It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.

Claims (7)

1. a kind of air conditioner energy saving control method, which is characterized in that the described method includes:
Operation of air conditioner obtains real-time indoor environment temperature and setting target temperature, calculates the real-time indoor environment temperature and institute The temperature difference between setting target temperature is stated, as the real-time temperature difference;
PID arithmetic is carried out according to the real-time temperature difference, obtains first frequency, meanwhile, it is corresponding with wind speed according to the known temperature difference Relation acquisition wind speed corresponding with the real-time temperature difference, as real-time wind speed;
Frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, as second frequency;
It selects the smaller value in the first frequency and the second frequency as target frequency, is controlled according to the target frequency The compressor of air-conditioning is run.
2. the method according to claim 1, wherein in the wind speed and the corresponding relationship of frequency, a wind speed Multiple frequencies are corresponded to, the second frequency is the corresponding maximum frequency of the real-time wind speed.
3. method according to claim 1 or 2, which is characterized in that if in the first frequency and the second frequency Smaller value is greater than setting highest frequency, then using the setting highest frequency as the target frequency, according to the target frequency Control the compressor operation of air-conditioning.
4. a kind of air conditioner energy saving controller, which is characterized in that described device includes:
Indoor environment temperature acquiring unit, for obtaining real-time indoor environment temperature;
Target temperature acquiring unit is set, for obtaining setting target temperature;
Real-time temperature difference acquiring unit, for calculating the temperature between the real-time indoor environment temperature and the setting target temperature Difference, as the real-time temperature difference;
PID arithmetic unit obtains for carrying out PID arithmetic according to the real-time temperature difference and exports first frequency;
Real-time wind speed acquiring unit, it is corresponding with the real-time temperature difference for being obtained according to the known temperature difference with the corresponding relationship of wind speed Wind speed, as real-time wind speed;
Second frequency acquiring unit, it is corresponding with the real-time wind speed for being obtained according to known wind speed with the corresponding relationship of frequency Frequency, as second frequency;
Compressor frequency obtains and control unit, for select the smaller value in the first frequency and the second frequency as Target frequency is run according to the compressor that the target frequency controls air-conditioning.
5. device according to claim 4, which is characterized in that in the wind speed and the corresponding relationship of frequency, a wind speed Multiple frequencies are corresponded to, the second frequency that the second frequency acquiring unit obtains is the corresponding maximum of the real-time wind speed Frequency.
6. device according to claim 4 or 5, which is characterized in that if in the first frequency and the second frequency Smaller value is greater than setting highest frequency, the compressor frequency obtain with control unit select using the setting highest frequency as The target frequency is run according to the compressor that the target frequency controls air-conditioning.
7. a kind of air-conditioning, which is characterized in that the air-conditioning includes air-conditioning section described in any one of the claims 4 to 6 It can control device.
CN201610251628.8A 2016-04-21 2016-04-21 Air conditioner energy saving control method, control device and air-conditioning Active CN105928136B (en)

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CN106642592A (en) * 2016-12-30 2017-05-10 美的集团股份有限公司 Control method and device of air conditioner
CN106705374A (en) * 2016-12-30 2017-05-24 美的集团股份有限公司 Control method and device of air conditioner
CN107883539B (en) * 2017-10-17 2021-03-19 芜湖美智空调设备有限公司 Air conditioner controller, air conditioner, control method thereof and storage medium
CN110160215B (en) * 2019-05-15 2021-02-26 广东美的制冷设备有限公司 Air conditioner control method and device, air conditioner, air conditioning system and readable storage medium
CN110486906B (en) * 2019-08-20 2021-07-16 广东美的制冷设备有限公司 Air conditioning system, air conditioning control method and device thereof, and readable storage medium
CN111023428A (en) * 2019-12-26 2020-04-17 宁波奥克斯电气股份有限公司 Air conditioner control method and device and air conditioner
CN111351175A (en) * 2020-03-23 2020-06-30 宁波奥克斯电气股份有限公司 Control method and device for refrigeration at high temperature, air conditioner and storage medium

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