CN112944567A - Air conditioner control method and device and air conditioning unit - Google Patents
Air conditioner control method and device and air conditioning unit Download PDFInfo
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- CN112944567A CN112944567A CN202110217499.1A CN202110217499A CN112944567A CN 112944567 A CN112944567 A CN 112944567A CN 202110217499 A CN202110217499 A CN 202110217499A CN 112944567 A CN112944567 A CN 112944567A
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- air conditioner
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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
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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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
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
Abstract
The invention discloses an air conditioner control method, an air conditioner control device and an air conditioner unit, wherein the method comprises the following steps: acquiring the temperature of an electric control module and weather parameters of an area where an air conditioner is located; judging whether the temperature and the weather parameters of the electric control module meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electric control module; and if the preset conditions are met, controlling the running states of the compressor and the electric control module. The invention solves the problems that the temperature control of the electric control module is unstable and condensation is easy to generate in the prior art, avoids the situation that the drive plate is burnt out due to short circuit caused by the condensation of the electric control module, and improves the running reliability of the unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device and an air conditioning unit.
Background
Because the electric control component of the air conditioner can generate heat in the operation process, in order to reduce the temperature of the electric control component and ensure that the electric control component stably operates in a relatively safe environment range, the industry realizes the cooling of the electric control component of the air conditioning system by two typical schemes at present. The first scheme is that a heat dissipation plate is additionally arranged at the back of an electrical box, and heat on an electrical element is transferred to air by utilizing a high-speed wind field generated when a fan runs, so that the temperature of an electric control device is reduced; in another scheme, a circulating refrigerant in the system is introduced to the back of the electric controller through a copper pipe, and the heat of the electric controller is transferred to the refrigerant through a low-temperature refrigerant which flows circularly.
The common electric control heat dissipation mode has the advantages of single control mode and poor control stability. The temperature of an electric controller is low frequently in the running process of the unit, or the electric controller is condensed to cause the situation that a drive plate is short-circuited and burnt.
Aiming at the problems that the temperature control of an electric control module in the related technology is unstable and condensation is easy to generate, an effective solution is not provided at present.
Disclosure of Invention
The invention provides an air conditioner control method, an air conditioner control device and an air conditioner unit, and at least solves the problems that in the prior art, the temperature control of an electric control module is unstable and condensation is easy to generate.
In order to solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided an air conditioner control method, where the air conditioner includes a plurality of compressors, and each compressor corresponds to one electronic control module; the method comprises the following steps: acquiring the temperature of an electric control module and weather parameters of an area where an air conditioner is located; judging whether the temperature and the weather parameters of the electric control module meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electric control module; and if the preset conditions are met, controlling the running states of the compressor and the electric control module.
Further, the weather parameter includes at least one of: altitude, humidity parameters; whether the temperature and the weather parameters of the electric control module meet preset conditions or not is judged, and the method comprises the following steps: judging whether the temperature of the electric control module is less than or equal to the ambient temperature, whether the altitude of the area where the air conditioner is located is high altitude, and whether the humidity parameter of the area where the air conditioner is located is less than a preset value; if the temperature of the electric control module is less than or equal to the ambient temperature, and the altitude of the area where the air conditioner is located is high altitude and/or the humidity parameter is less than a preset value, determining that a preset condition is met; otherwise, determining that the preset condition is not met.
Further, controlling the operating states of the compressor and the electronic control module includes: controlling the running compressor and an electric control module of the running compressor to shut down; and detecting the temperature of the electric control module of the compressor which does not operate, and controlling the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate to start.
Further, after the compressor and the electronic control module corresponding to the lowest temperature are started, the method further comprises the following steps: detecting whether the temperature of the electric control module corresponding to the lowest temperature is less than or equal to the ambient temperature; if so, controlling the compressor and the electric control module corresponding to the lowest temperature to keep the current running state; otherwise, after the compressor and the electric control module corresponding to the lowest temperature are controlled to operate for the preset time, the temperature of the electric control module of the compressor which does not operate is detected again, and the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate are controlled to start.
Further, still include: and if the preset condition is not met, controlling the running compressor and the corresponding electric control module to keep the current running state.
Further, acquiring weather parameters of an area where the air conditioner is located includes: determining the area where the air conditioner is located; and communicating with the server, and acquiring the weather parameters of the area where the air conditioner is located from the server.
Further, acquiring weather parameters of an area where the air conditioner is located includes: determining the area where the air conditioner is located; and acquiring the weather parameters of the area where the air conditioner is located from a local database.
According to another aspect of the embodiments of the present invention, there is provided an air conditioner control device, in which an air conditioner includes a plurality of compressors, each of which corresponds to one of electric control modules; the device comprises: the acquisition module is used for acquiring the temperature of the electric control module and the weather parameters of the area where the air conditioner is located; the judging module is used for judging whether the temperature and the weather parameters of the electric control module meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electric control module; and the control module is used for controlling the running states of the compressor and the electric control module if preset conditions are met.
According to another aspect of the embodiments of the present invention, there is provided an air conditioning unit including the air conditioning control device as described above, wherein the air conditioning unit is an outdoor unit system or a multi-outdoor unit system.
According to still another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the air conditioning control method as described above when executed by a computer processor.
The invention provides a control scheme of a compressor and a control module of a multi-compressor air conditioning system based on weather parameters, which is used for controlling the compressor and the control module through the weather parameters, adjusting the running states of the compressor and the control module of the system, ensuring that the compressor and the control module are always in a healthy state, avoiding the situation that a drive plate is burnt out due to short circuit caused by condensation of an electric control module and improving the running reliability of a unit.
Drawings
Fig. 1 is an alternative flowchart of an air conditioner control method according to an embodiment of the present invention;
fig. 2 is another alternative flowchart of an air conditioner control method according to an embodiment of the present invention; and
fig. 3 is a block diagram of an alternative configuration of an air conditioning control apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In preferred embodiment 1 of the present invention, there is provided an air conditioner control method, which can be directly applied to various air conditioning units including a plurality of compressors, each of which corresponds to one electronic control module. In particular, fig. 1 shows an alternative flow chart of the method, which, as shown in fig. 1, comprises the following steps S102-S106:
s102: acquiring the temperature of an electric control module and weather parameters of an area where an air conditioner is located;
s104: judging whether the temperature and the weather parameters of the electric control module meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electric control module;
s106: and if the preset conditions are met, controlling the running states of the compressor and the electric control module.
In the above embodiment, a control scheme of the compressor and the control module of the multi-compressor air conditioning system based on the weather parameters is provided, the running states of the compressor and the control module of the system are adjusted by participating in control of the weather parameters, the compressor and the control module are guaranteed to be always in a healthy state, the situation that a drive plate is burnt out due to short circuit caused by condensation of an electric control module is avoided, and the running reliability of the unit is improved.
Weather parameters mainly include parameters affecting condensation, such as altitude, humidity parameters; the temperature of the electric control module is the temperature of the electric control module for operating the compressor; whether the temperature and the weather parameters of the electric control module meet preset conditions or not is judged, and the method comprises the following steps: judging whether the temperature of the electric control module is less than or equal to the ambient temperature, whether the altitude of the area where the air conditioner is located is high altitude, and whether the humidity parameter of the area where the air conditioner is located is less than a preset value; if the temperature of the electric control module is less than or equal to the ambient temperature, and the altitude of the area where the air conditioner is located is high altitude and/or the humidity parameter is less than a preset value, determining that a preset condition is met; otherwise, determining that the preset condition is not met. In the above embodiment, the temperature of the electronic control module is less than or equal to the ambient temperature, which is a condition that condensation is easy to occur, but the temperature of the electronic control module and the weather parameter need to satisfy the condition at the same time, which is a condition that the preset condition is satisfied. Condensation is related to relative humidity, and the greater the relative humidity, the more significant the condensation. Therefore, the risk of dew condensation in the high altitude low humidity region is small, so that the control operation is not executed even if the temperature is equal to or lower than the ambient temperature without satisfying the preset sufficient condition. Namely, if the preset condition is not met, the running compressor and the corresponding electric control module are controlled to keep the current running state.
After meeting the preset condition, controlling the running state of the compressor and the electric control module, comprising: controlling the running compressor and an electric control module of the running compressor to shut down; and detecting the temperature of the electric control module of the compressor which does not operate, and controlling the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate to start. Generally, the temperature of an electric control module of the compressor is higher than that of an electric control module of the compressor which is not operated, therefore, when the temperature of the electric control module of the compressor is less than or equal to the ambient temperature, the temperature of the electric control module of the compressor which is not operated is more less than the ambient temperature, and condensation is easier to occur.
After the compressor and the electronic control module corresponding to the lowest temperature are started, the method further comprises the following steps: detecting whether the temperature of the electric control module corresponding to the lowest temperature is less than or equal to the ambient temperature; if so, controlling the compressor and the electric control module corresponding to the lowest temperature to keep the current running state; otherwise, after the compressor and the electric control module corresponding to the lowest temperature are controlled to operate for the preset time, the temperature of the electric control module of the compressor which does not operate is detected again, and the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate are controlled to start.
The method for acquiring the weather parameters comprises the following steps: determining the area where the air conditioner is located; and communicating with the server, and acquiring the weather parameters of the area where the air conditioner is located from the server. Or determining the area where the air conditioner is located; acquiring weather parameters of an area where an air conditioner is located from a local database; wherein the weather parameter includes at least one of: altitude, humidity parameters.
Another air conditioner control method is further provided in preferred embodiment 1 of the present invention, and specifically, fig. 2 shows an alternative flowchart of the method, and as shown in fig. 2, the method includes the following steps S202 to S212:
s202: acquiring an electric control environment temperature; the electric control environment temperature is the temperature of the electric control module.
S204: judging whether the electric control environment temperature is greater than the environment temperature;
s206: if so, keeping the current running state of the unit;
s208: if the cloud weather parameters (altitude, relative humidity and the like) of the server are not satisfied;
s210: determining whether the area is a high-altitude low-humidity area;
s212: if yes, the module executes alternate control (switching to the module with lower module temperature for operation); otherwise, keeping the current running state of the unit.
As shown in fig. 2, in the operation process, the unit obtains weather parameters (including but not limited to altitude, relative humidity, and other information) of an area where the unit is located in real time through the server, and simultaneously obtains the electronic control environment temperature of the unit in the current operation state in the operation process.
When the electric control environment temperature is higher than the environment temperature, the unit keeps the current compressor running state and does not execute the compressor rotation action;
when the electric control environment temperature is less than or equal to the environment temperature, if the unit installation area is judged to be high altitude and low humidity, the unit keeps the current compressor running state, and the compressor rotation action is not executed;
when the temperature of the electric control environment is less than or equal to the environment temperature, if the non-high altitude and low humidity of the unit installation area are judged, the unit compressor executes the alternate action, the compressor with lower temperature of the control module is started to operate, and when the temperature of the module corresponding to the compressor is higher than the environment temperature, the unit keeps the current compressor operation state and does not execute the compressor alternate action; and if the temperature of the control module corresponding to the compressor is still lower than the ambient temperature, executing the compressor rotation action after the unit continuously operates for Xmin.
Through the compressor rotation control/module rotation control, the temperature of the electric control module and the compressor corresponding to the unit shutdown compressor is guaranteed to be always in a healthy state under different altitudes/relative humidity conditions, and the condition that a drive plate is burnt out due to electric controller condensation in a short circuit mode is avoided.
Example 2
Based on the air conditioner control method provided in the above embodiment 1, in a preferred embodiment 2 of the present invention, there is further provided an air conditioner control device, where the air conditioner includes a plurality of compressors, and each compressor corresponds to one electronic control module; specifically, fig. 3 shows an alternative structural block diagram of the apparatus, and as shown in fig. 3, the apparatus includes:
an obtaining module 302, configured to obtain a temperature of the electronic control module and a weather parameter of an area where the air conditioner is located;
the judging module 304 is connected with the obtaining module 302 and is used for judging whether the temperature and the weather parameters of the electric control module meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electric control module;
and the control module 306 is connected with the judging module 304 and is used for controlling the running states of the compressor and the electric control module if preset conditions are met.
In the above embodiment, a control scheme of the compressor and the control module of the multi-compressor air conditioning system based on the weather parameters is provided, the running states of the compressor and the control module of the system are adjusted by participating in control of the weather parameters, the compressor and the control module are guaranteed to be always in a healthy state, the situation that a drive plate is burnt out due to short circuit caused by condensation of an electric control module is avoided, and the running reliability of the unit is improved.
Wherein the weather parameter includes at least one of: altitude, humidity parameters; the determining module 304 includes: the judging unit is used for judging whether the temperature of the electric control module is less than or equal to the environmental temperature, whether the altitude of the area where the air conditioner is located is high altitude and whether the humidity parameter of the area where the air conditioner is located is less than a preset value; the first determining unit is used for determining that a preset condition is met if the temperature of the electric control module is less than or equal to the ambient temperature and the altitude of the area where the air conditioner is located is high altitude and/or the humidity parameter is less than a preset value; otherwise, determining that the preset condition is not met.
The control module 306 includes: the first control unit is used for controlling the running compressor and the shutdown of the electric control module of the running compressor; and the second control unit is used for detecting the temperature of the electric control module of the compressor which does not operate and controlling the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate to start.
The control module 306 further includes: the detection unit is used for detecting whether the temperature of the electric control module corresponding to the lowest temperature is less than or equal to the environmental temperature or not after the compressor and the electric control module corresponding to the lowest temperature are started; the third control unit is used for controlling the compressor and the electric control module corresponding to the lowest temperature to keep the current running state if the temperature of the compressor and the electric control module is the lowest temperature; and the fourth control unit is used for detecting the temperature of the electric control module of the non-operated compressor again after controlling the compressor and the electric control module corresponding to the lowest temperature to operate for preset time, and controlling the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the non-operated compressor to start.
This device still includes: and the maintaining module is used for controlling the running compressor and the corresponding electric control module to maintain the current running state if the preset condition is not met.
The obtaining module 302 includes: the second determining unit is used for determining the area where the air conditioner is located; and the communication unit is communicated with the server and acquires the weather parameters of the area where the air conditioner is located from the server. And the database unit is used for acquiring the weather parameters of the area where the air conditioner is located from the local database.
With regard to the apparatus in the above embodiments, the specific manner in which each unit and each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Example 3
Based on the air conditioning control device provided in the foregoing embodiment 2, in a preferred embodiment 3 of the present invention, an air conditioning unit is further provided, which includes the air conditioning control device according to the foregoing embodiment 2, and the air conditioning unit is an outdoor unit system or a multi-outdoor unit system.
In the above embodiment, a control scheme of the compressor and the control module of the multi-compressor air conditioning system based on the weather parameters is provided, the running states of the compressor and the control module of the system are adjusted by participating in control of the weather parameters, the compressor and the control module are guaranteed to be always in a healthy state, the situation that a drive plate is burnt out due to short circuit caused by condensation of an electric control module is avoided, and the running reliability of the unit is improved.
Example 4
Based on the air-conditioning control method provided in embodiment 1 above, there is also provided in preferred embodiment 4 of the present invention a storage medium containing computer-executable instructions for performing the air-conditioning control method as described above when executed by a computer processor.
In the above embodiment, a control scheme of the compressor and the control module of the multi-compressor air conditioning system based on the weather parameters is provided, the running states of the compressor and the control module of the system are adjusted by participating in control of the weather parameters, the compressor and the control module are guaranteed to be always in a healthy state, the situation that a drive plate is burnt out due to short circuit caused by condensation of an electric control module is avoided, and the running reliability of the unit is improved.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. The air conditioner control method is characterized in that the air conditioner comprises a plurality of compressors, and each compressor corresponds to one electric control module; the method comprises the following steps:
acquiring the temperature of an electric control module and weather parameters of an area where the air conditioner is located;
judging whether the temperature of the electric control module and the weather parameters meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electronic control module;
and if the preset conditions are met, controlling the running states of the compressor and the electric control module.
2. The method of claim 1, wherein the weather parameter comprises at least one of: altitude, humidity parameters; the temperature of the electric control module is the temperature of the electric control module for operating the compressor; judging whether the temperature of the electric control module and the weather parameters meet preset conditions or not, wherein the judging step comprises the following steps:
judging whether the temperature of the electric control module is less than or equal to the ambient temperature, whether the altitude of the area where the air conditioner is located is high altitude, and whether the humidity parameter of the area where the air conditioner is located is less than a preset value;
if the temperature of the electric control module is less than or equal to the environmental temperature, the altitude of the area where the air conditioner is located is high altitude and/or the humidity parameter is less than a preset value, determining that the preset condition is met;
otherwise, determining that the preset condition is not met.
3. The method of claim 2, wherein controlling the operating state of the compressor and the electronic control module comprises:
controlling the running compressor and an electric control module of the running compressor to shut down;
and detecting the temperature of the electric control module of the compressor which does not operate, and controlling the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate to start.
4. The method of claim 3, further comprising, after the compressor and the electronic control module corresponding to the lowest temperature are powered on:
detecting whether the temperature of the electric control module corresponding to the lowest temperature is less than or equal to the ambient temperature;
if so, controlling the compressor and the electric control module corresponding to the lowest temperature to keep the current running state;
otherwise, after the compressor and the electric control module corresponding to the lowest temperature are controlled to operate for the preset time, the temperature of the electric control module of the compressor which does not operate is detected again, and the compressor and the electric control module corresponding to the lowest temperature in the temperature of the electric control module of the compressor which does not operate are controlled to start.
5. The method of claim 1, further comprising:
and if the preset condition is not met, controlling the running compressor and the corresponding electric control module to keep the current running state.
6. The method of claim 1, wherein obtaining weather parameters for an area in which the air conditioner is located comprises:
determining the area where the air conditioner is located;
and communicating with a server, and acquiring the weather parameters of the area where the air conditioner is located from the server.
7. The method of claim 1, wherein obtaining weather parameters for an area in which the air conditioner is located comprises:
determining the area where the air conditioner is located;
and acquiring the weather parameters of the area where the air conditioner is located from a local database.
8. The air conditioner control device is characterized in that the air conditioner comprises a plurality of compressors, and each compressor corresponds to one electric control module; the device comprises:
the acquisition module is used for acquiring the temperature of the electric control module and the weather parameters of the area where the air conditioner is located;
the judging module is used for judging whether the temperature of the electric control module and the weather parameters meet preset conditions or not; the preset condition is used for representing the possibility of condensation of the electronic control module;
and the control module is used for controlling the running states of the compressor and the electric control module if the preset conditions are met.
9. An air conditioning unit, characterized by comprising the air conditioning control device according to claim 8, wherein the air conditioning unit is an outdoor unit system or a multi-outdoor unit system.
10. A storage medium containing computer-executable instructions for performing the air conditioning control method of any one of claims 1 to 7 when executed by a computer processor.
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| CN202110217499.1A CN112944567B (en) | 2021-02-26 | 2021-02-26 | Air conditioner control method and device and air conditioning unit |
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