CN112378045A - Low-temperature anti-freezing protection method and multi-connected air conditioning equipment - Google Patents
Low-temperature anti-freezing protection method and multi-connected air conditioning equipment Download PDFInfo
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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
- F24F11/41—Defrosting; Preventing freezing
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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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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Abstract
The invention provides a low-temperature anti-freezing protection method and multi-connected air conditioning equipment, wherein the method comprises the following steps: determining the outdoor environment temperature of an outdoor host of the multi-connected air-conditioning equipment, wherein the multi-connected air-conditioning equipment comprises the outdoor host and at least one indoor unit, and the outdoor host can control the at least one indoor unit; determining at least one terminal room corresponding to at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room; determining whether the outdoor environment temperature is lower than a preset first protection threshold value, wherein the first protection threshold value is used for representing that an outdoor host needs to control at least one indoor unit to be protected to be in a heating mode; and when the outdoor environment temperature is determined to be lower than a preset first protection threshold value, controlling at least one indoor unit to be protected to be in a heating mode so as to enable at least one terminal room to be protected to be in a low-temperature anti-freezing protection state. The scheme can realize low-temperature anti-freezing protection of the terminal room.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a low-temperature anti-freezing protection method and multi-connected air conditioning equipment.
Background
With the implementation of the national coal-to-electricity strategy, the application of heat pump type air conditioners for heating in domestic low-temperature and ultra-low-temperature areas is increasing day by day, and a central heating mode is generally adopted. If the air conditioner is adopted for central heating, the energy consumption and the low-temperature anti-freezing protection of a terminal room need to be comprehensively considered so as to improve the comfort level of a client for heating by using the heat pump type air conditioner in winter.
The Chinese patent application with the patent application number of 201810635734.5 discloses a three-tube heat recovery multi-split air conditioner system and a control method thereof, wherein the system can judge whether the evaporation temperature of a refrigeration indoor unit needs to be adjusted according to the evaporation temperature and the ambient temperature of the refrigeration indoor unit, and when the evaporation temperature of the indoor unit needs to be adjusted, the evaporation temperature of the refrigeration indoor unit is adjusted by controlling a low-temperature refrigeration anti-freezing module, so that the requirement of inner side refrigeration under the low-temperature working condition is met.
As can be seen from the above description, the multi-split air conditioning system in the prior art mainly adjusts the evaporating temperature of the indoor unit of the refrigeration system by controlling the low-temperature refrigeration anti-freezing module, but the above method cannot achieve the low-temperature anti-freezing protection of the terminal room.
Disclosure of Invention
The embodiment of the invention provides a low-temperature anti-freezing protection method and multi-connected air conditioning equipment, which can realize low-temperature anti-freezing protection of a terminal room.
In a first aspect, an embodiment of the present invention provides a low-temperature anti-freezing protection method, which is applied to a multi-connected air conditioning device, and includes:
determining the outdoor environment temperature of an outdoor host of a multi-connected air-conditioning device, wherein the multi-connected air-conditioning device comprises the outdoor host and at least one indoor unit, and the outdoor host can control the at least one indoor unit;
determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room;
determining whether the outdoor environment temperature is lower than a preset first protection threshold, wherein the first protection threshold is used for representing that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode;
and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, controlling the at least one indoor unit to be protected to be in a heating mode so as to enable at least one terminal room to be protected to be in a low-temperature anti-freezing protection state.
Preferably, the first and second electrodes are formed of a metal,
when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, controlling the at least one indoor unit to be protected to be in a heating mode so as to enable at least one terminal room to be protected to be in a low-temperature anti-freezing protection state, including:
when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, utilizing the outdoor host machine to perform zero clearing operation on a counter CNT;
for each of the at least one terminal room, performing:
acquiring the current terminal room temperature corresponding to the current terminal room;
determining whether the temperature of the current terminal room is lower than a preset second protection threshold, wherein the second protection threshold is used for representing that a current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode;
when the temperature of the current terminal room is determined to be lower than the preset second protection threshold value, determining the serial number of the current terminal room;
storing the current terminal room number into a preset address text library;
updating the CNT number to match the CNT number with a total number of room numbers stored in the address text repository.
Preferably, the first and second electrodes are formed of a metal,
after the updating the CNT number, further comprising:
monitoring in real time whether the CNT is zero;
when the CNT is monitored to be not zero, controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state;
monitoring the current terminal room temperature of the current terminal room in real time;
determining whether the temperature of the current terminal room is higher than a preset third protection threshold, wherein the third protection threshold is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode;
and when the current temperature is determined to be higher than the preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and returning to the zero clearing operation of the CNT by using the outdoor host machine.
Preferably, the first and second electrodes are formed of a metal,
after the monitoring that the CNT is not zero, before the controlling, by the outdoor host, a current indoor unit to start a heating mode, further comprising:
determining whether the current operation mode of the current indoor unit is a refrigeration mode;
when the current operation mode is determined to be the refrigeration mode, the current indoor unit is closed by using the outdoor host;
and recording the current operation mode of the current indoor unit.
Preferably, the first and second electrodes are formed of a metal,
after the determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air-conditioning equipment, before the determining whether the outdoor environment temperature is lower than a preset first protection threshold, further comprising:
acquiring information of the at least one terminal room, wherein the information of the at least one terminal room comprises: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number.
Preferably, the first and second electrodes are formed of a metal,
and data transmission is carried out between the outdoor host and the at least one indoor unit in a MM1192 high-speed communication mode, differential signals output by the MM1192 communication chip are loaded to two buses of the HBS respectively, and signal decoding is carried out at an output end in a pulse width coding mode.
In a second aspect, an embodiment of the present invention provides a multi-connected air conditioning apparatus, including:
the system comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining the outdoor environment temperature of an outdoor host of a multi-connected air-conditioning device, the multi-connected air-conditioning device comprises the outdoor host and at least one indoor unit, and the outdoor host can control the at least one indoor unit;
the second determining module is used for determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room;
the processing module is configured to determine whether the outdoor environment temperature determined by the first determining module is lower than a preset first protection threshold, where the first protection threshold is used to indicate that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode; and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, controlling the at least one indoor unit to be protected to be in a heating mode, so that the at least one terminal room to be protected determined by the second determination module is in a low-temperature anti-freezing protection state.
Preferably, the first and second electrodes are formed of a metal,
the processing module is configured to perform:
when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, utilizing the outdoor host machine to perform zero clearing operation on a counter CNT;
acquiring the temperature of a current terminal room corresponding to the current terminal room for each terminal room in the at least one terminal room;
determining whether the temperature of the current terminal room is lower than a preset second protection threshold, wherein the second protection threshold is used for representing that a current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode;
when the temperature of the current terminal room is determined to be lower than the preset second protection threshold value, determining the serial number of the current terminal room;
storing the current terminal room number into a preset address text library;
updating the CNT number to match the CNT number with a total number of room numbers stored in the address text repository.
Preferably, the first and second electrodes are formed of a metal,
further comprising: a monitoring module;
the monitoring module is used for executing:
monitoring in real time whether the CNT is zero;
when the CNT is monitored to be not zero, controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state;
monitoring the current terminal room temperature of the current terminal room in real time;
determining whether the temperature of the current terminal room is higher than a preset third protection threshold, wherein the third protection threshold is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode;
and when the current temperature is determined to be higher than the preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and returning to the zero clearing operation of the CNT by using the outdoor host machine.
Preferably, the first and second electrodes are formed of a metal,
further comprising: a mode determination module;
the mode determining module is used for determining whether the current operation mode of the current indoor unit is a refrigeration mode; when the current operation mode is determined to be the refrigeration mode, the current indoor unit is closed by using the outdoor host; and recording the current operation mode of the current indoor unit.
Preferably, the first and second electrodes are formed of a metal,
further comprising: an acquisition module;
the obtaining module is configured to obtain information of the at least one terminal room, where the information of the at least one terminal room includes: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number.
The embodiment of the invention provides a low-temperature anti-freezing protection method and multi-connected air conditioning equipment, which can be used for performing low-temperature anti-freezing protection on a terminal room in order to improve the heating comfort level of a user using a heat pump type air conditioner in winter. Based on this, the outdoor environment temperature of the multi-connected air-conditioning equipment can be obtained through the outdoor host of the multi-connected air-conditioning equipment, then whether the outdoor environment temperature is lower than a preset first protection threshold value or not is judged, and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, it is indicated that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode, so that at least one terminal room to be protected is in a low-temperature anti-freezing protection state, and at the moment, the outdoor host can be controlled to start the heating mode of at least one indoor unit to be protected, so that the low-temperature anti-freezing protection of the terminal room is realized. By the mode, not only can the low-temperature anti-freezing protection of the multi-connected air conditioning equipment be realized, but also the low-temperature anti-freezing protection of a terminal room can be realized, so that the comfort level of a user for heating by using a heat pump type air conditioner in winter is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a method of cryogenic antifreeze protection according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method of cryogenic freeze protection provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of a multi-connected air conditioning apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another multi-connected air conditioning apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a multi-connected air conditioning apparatus according to another embodiment of the present invention;
fig. 6 is a schematic diagram of a multi-connected air conditioning unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a method for low-temperature anti-freezing protection, which is applied to a multi-connected air conditioning device, and includes:
step 101: determining the outdoor environment temperature of an outdoor host of the multi-connected air-conditioning equipment, wherein the multi-connected air-conditioning equipment comprises the outdoor host and at least one indoor unit, and the outdoor host can control the at least one indoor unit;
step 102: determining at least one terminal room corresponding to at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room;
step 103: determining whether the outdoor environment temperature is lower than a preset first protection threshold value, wherein the first protection threshold value is used for representing that an outdoor host needs to control at least one indoor unit to be protected to be in a heating mode;
step 104: and when the outdoor environment temperature is determined to be lower than a preset first protection threshold value, controlling at least one indoor unit to be protected to be in a heating mode so as to enable at least one terminal room to be protected to be in a low-temperature anti-freezing protection state.
In the embodiment of the invention, in order to improve the heating comfort of a user in winter by using the heat pump type air conditioner, the terminal room can be protected from low temperature freezing. Based on this, the outdoor environment temperature of the multi-connected air-conditioning equipment can be obtained through the outdoor host of the multi-connected air-conditioning equipment, then whether the outdoor environment temperature is lower than a preset first protection threshold value or not is judged, and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, it is indicated that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode, so that at least one terminal room to be protected is in a low-temperature anti-freezing protection state, and at the moment, the outdoor host can be controlled to start the heating mode of at least one indoor unit to be protected, so that the low-temperature anti-freezing protection of the terminal room is realized. By the mode, not only can the low-temperature anti-freezing protection of the multi-connected air conditioning equipment be realized, but also the low-temperature anti-freezing protection of a terminal room can be realized, so that the comfort level of a user for heating by using a heat pump type air conditioner in winter is further improved.
In order to enable at least one terminal room to be protected to be in the low-temperature anti-freezing protection state, in an implementation of the present invention, when it is determined that the outdoor environment temperature is lower than the preset first protection threshold, step 104 in the foregoing embodiment controls at least one indoor unit to be protected to be in the heating mode, so that at least one terminal room to be protected is in the low-temperature anti-freezing protection state, which may be specifically implemented as follows:
when the outdoor environment temperature is determined to be lower than a preset first protection threshold value, carrying out zero clearing operation on a counter CNT by using an outdoor host machine;
for each of the at least one terminal room, performing:
acquiring the current terminal room temperature corresponding to the current terminal room;
determining whether the temperature of the current terminal room is lower than a preset second protection threshold value, wherein the second protection threshold value is used for representing that the current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode;
when the temperature of the current terminal room is lower than a preset second protection threshold value, determining the serial number of the current terminal room;
storing the current terminal room number into a preset address text library;
the CNT number is updated so that the CNT number matches the total number of room numbers stored in the address text library.
In the embodiment of the present invention, in order to perform low-temperature anti-freezing protection on the terminal room, a determination may be performed based on the current terminal room temperature, and when the outdoor environment temperature is lower than the first protection threshold, it indicates that the low-temperature anti-freezing protection mechanism needs to be started at this time, and the zero clearing operation of the low-temperature terminal room counter CNT may be performed first. The method comprises the steps that the NTC temperature sensor arranged in the current indoor unit is used for detecting the temperature of the current terminal room, when the temperature of the current terminal room is lower than a preset second protection threshold value, it is indicated that the current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode, the number of the current terminal room can be determined and stored in a preset address text library at the moment, then the number of CNTs is updated through the number of the terminal room numbers stored in the address text library, so that the number of the CNTs is consistent with the total number of the room numbers stored in the address text library, the monitoring of the number of the low-temperature terminal rooms is realized through monitoring the number of the CNTs, and the low-temperature anti-freezing protection of.
In order to monitor the state of the terminal room in real time, in an embodiment of the present invention, after the step of updating the CNT number in the above embodiment, the method further includes:
monitoring whether CNT is zero or not in real time;
when the CNT is monitored to be not zero, controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state;
monitoring the current terminal room temperature of the current terminal room in real time;
determining whether the temperature of the current terminal room is higher than a preset third protection threshold value, wherein the third protection threshold value is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode;
and when the current temperature is determined to be higher than a preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and returning to the zero clearing operation of the CNT by using the outdoor host machine.
In the embodiment of the invention, because the number of the CNTs is consistent with the total number of the room numbers stored in the address text library, the number of the rooms needing low-temperature anti-freezing protection can be determined by monitoring the number of the CNTs, and the indoor units corresponding to the terminal rooms needing low-temperature anti-freezing protection are correspondingly controlled by the room numbers stored in the address text library. Meanwhile, the temperature of the terminal room can be monitored in real time, when the temperature of the terminal room in the low-temperature anti-freezing protection state is higher than a preset third protection threshold value, the terminal room does not need to be in the low-temperature anti-freezing protection state at the moment, and at the moment, the outdoor host can control the corresponding indoor unit which starts the low-temperature anti-freezing protection mechanism to exit from the low-temperature anti-freezing protection state, even if the current indoor unit is not in the heating mode.
In order to perform anti-freeze protection at low temperature for the terminal room, in an embodiment of the present invention, after the step in the above embodiment detects that the CNT is not zero, before the step of controlling the current indoor unit to start the heating mode by using the outdoor host, the method further includes:
determining whether the current operation mode of the current indoor unit is a refrigeration mode;
when the current operation mode is determined to be the refrigeration mode, the current indoor unit is closed by using the outdoor host;
and recording the current operation mode of the current indoor unit.
In the embodiment of the invention, when any indoor unit of the whole multi-connected air conditioning equipment system is in the refrigeration mode, the indoor unit cannot control the terminal room where the indoor unit is located to perform low-temperature anti-freezing protection, so that the indoor unit corresponding to the terminal room to be protected needs to perform operation mode monitoring, and when the operation mode of the current indoor unit is monitored to be the refrigeration mode, the current indoor unit needs to be closed through the outdoor host machine so as to realize low-temperature anti-freezing protection on the terminal room.
In order to realize data interaction between the outdoor host and the at least one indoor unit, in an embodiment of the present invention, after determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air conditioner in step 102, before determining whether the outdoor ambient temperature is lower than the preset first protection threshold in step 103, the method further includes:
acquiring information of at least one terminal room, wherein the information of the at least one terminal room comprises: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number.
In the above embodiment, data transmission is performed between one outdoor host and at least one indoor unit in a MM1192 high-speed communication manner, differential signals output by a MM1192 communication chip are loaded onto two buses of the HBS, and signal decoding is performed at an output end in a pulse width coding manner.
In the embodiment of the present invention, in order to implement data interaction between the outdoor host and the at least one indoor unit, an MM1192 high-speed communication mode may be adopted, differential signals output by an MM1192 communication chip are respectively loaded onto two buses of the HBS, and signal decoding is performed at an output end in a pulse width coding mode, so that the outdoor host may acquire information of the at least one terminal room corresponding to the indoor unit in a polling mode, and the information of the at least one terminal room may be set to include: at least one terminal room temperature, at least one terminal room number and at least one terminal room CNT number to be protected, in order to cryoprotect the terminal room based on the information of the at least one terminal room. The multi-split air conditioner adopts the communication technology, comprehensively measures and calculates parameters such as terminal room temperature, outdoor environment temperature and the like, and starts a low-temperature anti-freezing protection mechanism in winter according to a preset protection value, so that the terminal room temperature is kept in a comfortable temperature range during the standby period of a client, and meanwhile, energy conservation and intelligent control can be considered.
As shown in fig. 2, in order to more clearly illustrate the technical solution and advantages of the present invention, the following detailed description of the method for providing low-temperature anti-freezing protection according to the embodiment of the present invention may specifically include the following steps:
step 201: the method comprises the steps of determining the outdoor environment temperature of an outdoor host of the multi-connected air-conditioning equipment, wherein the multi-connected air-conditioning equipment comprises the outdoor host and at least one indoor unit, the outdoor host can control the at least one indoor unit, data transmission is carried out between the outdoor host and the at least one indoor unit in a MM1192 high-speed communication mode, differential signals output by a MM1192 communication chip are loaded onto two buses of the HBS respectively, and signal decoding is carried out at an output end in a pulse width coding mode.
Step 202: and determining at least one terminal room corresponding to at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room.
Step 203: acquiring information of at least one terminal room, wherein the information of the at least one terminal room comprises: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number.
Step 204: and determining whether the outdoor environment temperature is lower than a preset first protection threshold, wherein the first protection threshold is used for representing that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode.
Step 205: and when the outdoor environment temperature is determined to be lower than a preset first protection threshold value, carrying out zero clearing operation on the CNT by using the outdoor host machine.
Step 206: and acquiring the current terminal room temperature corresponding to the current terminal room aiming at each terminal room in at least one terminal room.
Step 207: and determining whether the temperature of the current terminal room is lower than a preset second protection threshold, wherein the second protection threshold is used for representing that the current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode.
Step 208: and when the temperature of the current terminal room is lower than a preset second protection threshold value, determining the serial number of the current terminal room, and storing the serial number of the current terminal room into a preset address text library.
Step 209: the CNT number is updated to match the CNT number with the total number of room numbers stored in the address text library, and it is monitored in real time whether the CNT is zero.
Step 210: and when the CNT is monitored to be not zero, determining whether the current operation mode of the current indoor unit is a cooling mode.
Step 211: and when the current operation mode is determined to be the refrigeration mode, closing the current indoor unit by using the outdoor host, and recording the current operation mode of the current indoor unit.
Step 212: and controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state.
Step 213: and monitoring the current terminal room temperature of the current terminal room in real time, and determining whether the current terminal room temperature is higher than a preset third protection threshold value, wherein the third protection threshold value is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode.
Step 214: and when the current temperature is determined to be higher than a preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and carrying out zero clearing operation on the CNT by using the outdoor host machine.
As shown in fig. 3, an embodiment of the present invention provides a multi-connected air conditioning apparatus, including:
the first determining module 301 is configured to determine an outdoor environment temperature where an outdoor host of the multi-split air-conditioning device is located, where the multi-split air-conditioning device includes one outdoor host and at least one indoor unit, and the outdoor host may control the at least one indoor unit;
a second determining module 302, configured to determine at least one terminal room corresponding to at least one indoor unit of the multi-split air conditioner, where one indoor unit corresponds to one terminal room;
the processing module 303 is configured to determine whether the outdoor environment temperature determined by the first determining module 301 is lower than a preset first protection threshold, where the first protection threshold is used for indicating that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode; when it is determined that the outdoor environment temperature is lower than the preset first protection threshold, controlling at least one indoor unit to be protected to be in a heating mode, so that at least one terminal room to be protected determined by the second determining module 302 is in a low-temperature anti-freezing protection state.
In the embodiment of the invention, in order to improve the heating comfort of a user in winter by using the heat pump type air conditioner, the terminal room can be protected from low temperature freezing. Based on this, the outdoor host of the multi-connected air-conditioning equipment of the first determining module can obtain the outdoor environment temperature of the multi-connected air-conditioning equipment, then the processing module judges whether the outdoor environment temperature is lower than a preset first protection threshold value, and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, it is indicated that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode, so that at least one terminal room to be protected determined by the second determining module is in a low-temperature anti-freezing protection state, and at this time, the outdoor host can be controlled to start the heating mode of at least one indoor unit to be protected, so as to realize low-temperature anti-freezing protection on the terminal room. By the mode, not only can the low-temperature anti-freezing protection of the multi-connected air conditioning equipment be realized, but also the low-temperature anti-freezing protection of a terminal room can be realized, so that the comfort level of a user for heating by using a heat pump type air conditioner in winter is further improved.
In an embodiment of the present invention, the processing module 303 is configured to execute:
when the outdoor environment temperature is determined to be lower than a preset first protection threshold value, carrying out zero clearing operation on a counter CNT by using an outdoor host machine;
acquiring the temperature of a current terminal room corresponding to the current terminal room aiming at each terminal room in at least one terminal room;
determining whether the temperature of the current terminal room is lower than a preset second protection threshold value, wherein the second protection threshold value is used for representing that the current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode;
when the temperature of the current terminal room is lower than a preset second protection threshold value, determining the serial number of the current terminal room;
storing the current terminal room number into a preset address text library;
the CNT number is updated so that the CNT number matches the total number of room numbers stored in the address text library.
Based on the multi-connected air conditioning equipment shown in fig. 3, as shown in fig. 4, in an embodiment of the present invention, the multi-connected air conditioning equipment further includes: a monitoring module 304;
a monitoring module 304 for performing:
monitoring whether CNT is zero or not in real time;
when the CNT is monitored to be not zero, controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state;
monitoring the current terminal room temperature of the current terminal room in real time;
determining whether the temperature of the current terminal room is higher than a preset third protection threshold value, wherein the third protection threshold value is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode;
and when the current temperature is determined to be higher than a preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and returning to the zero clearing operation of the CNT by using the outdoor host machine.
Based on the multi-connected air conditioning equipment shown in fig. 4, as shown in fig. 5, in an embodiment of the present invention, the multi-connected air conditioning equipment further includes: a mode determination module 305;
a mode determining module 305, configured to determine whether a current operation mode of the current indoor unit is a cooling mode; when the current operation mode is determined to be the refrigeration mode, the current indoor unit is closed by using the outdoor host; and recording the current operation mode of the current indoor unit.
Based on the multi-connected air conditioning equipment shown in fig. 3, as shown in fig. 6, in an embodiment of the present invention, the multi-connected air conditioning equipment further includes: an acquisition module;
the acquisition module is used for acquiring information of at least one terminal room, wherein the information of the at least one terminal room comprises: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number.
It is to be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the multi-connected air conditioning apparatus. In other embodiments of the present invention, a multi-connected air conditioning unit may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Because the information interaction, execution process, and other contents between the units in the device are based on the same concept as the method embodiment of the present invention, specific contents may refer to the description in the method embodiment of the present invention, and are not described herein again.
The embodiment of the invention also provides a multi-connected air conditioning device, which comprises: at least one memory and at least one processor;
at least one memory for storing a machine readable program;
at least one processor for invoking a machine readable program to perform a cryoprotection method according to any of the embodiments of the invention.
Embodiments of the present invention further provide a computer-readable medium, where computer instructions are stored on the computer-readable medium, and when the computer instructions are executed by a processor, the processor is caused to execute the method for protecting against freezing and freezing in any of the embodiments of the present invention.
Specifically, a system or an apparatus equipped with a storage medium on which software program codes that realize the functions of any of the above-described embodiments are stored may be provided, and a computer (or a CPU or MPU) of the system or the apparatus is caused to read out and execute the program codes stored in the storage medium.
In this case, the program code itself read from the storage medium can realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.
Examples of the storage medium for supplying the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW), a magnetic tape, a nonvolatile memory card, and a ROM. Alternatively, the program code may be downloaded from a server computer via a communications network.
Further, it should be clear that the functions of any one of the above-described embodiments may be implemented not only by executing the program code read out by the computer, but also by causing an operating system or the like operating on the computer to perform a part or all of the actual operations based on instructions of the program code.
Further, it is to be understood that the program code read out from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion unit connected to the computer, and then causes a CPU or the like mounted on the expansion board or the expansion unit to perform part or all of the actual operations based on instructions of the program code, thereby realizing the functions of any of the above-described embodiments.
The embodiments of the invention have at least the following beneficial effects:
1. in the embodiment of the invention, in order to improve the heating comfort of a user in winter by using the heat pump type air conditioner, the terminal room can be protected from low temperature freezing. Based on this, the outdoor environment temperature of the multi-connected air-conditioning equipment can be obtained through the outdoor host of the multi-connected air-conditioning equipment, then whether the outdoor environment temperature is lower than a preset first protection threshold value or not is judged, and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, it is indicated that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode, so that at least one terminal room to be protected is in a low-temperature anti-freezing protection state, and at the moment, the outdoor host can be controlled to start the heating mode of at least one indoor unit to be protected, so that the low-temperature anti-freezing protection of the terminal room is realized. By the mode, not only can the low-temperature anti-freezing protection of the multi-connected air conditioning equipment be realized, but also the low-temperature anti-freezing protection of a terminal room can be realized, so that the heating comfort of a user using a heat pump type air conditioner in winter is further improved;
2. in an embodiment of the present invention, in order to perform low-temperature anti-freezing protection on the terminal room, the determination may be performed based on the current terminal room temperature, and when the outdoor environment temperature is lower than the first protection threshold, it indicates that the low-temperature anti-freezing protection mechanism needs to be started at this time, and the zero clearing operation of the low-temperature terminal room counter CNT may be performed first. Detecting the temperature of a current terminal room through an NTC temperature sensor arranged on the current indoor unit, indicating that the current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode when the temperature of the current terminal room is lower than a preset second protection threshold value, determining the number of the current terminal room at the moment, storing the number of the current terminal room into a preset address text library, updating the number of CNTs through the number of the terminal room numbers stored into the address text library so that the number of the CNTs is consistent with the total number of the room numbers stored in the address text library, and monitoring the number of the low-temperature terminal rooms by monitoring the number of the CNTs, thereby conveniently realizing the low-temperature anti-freezing protection of the terminal room;
3. in an embodiment of the present invention, since the number of the CNTs matches the total number of the room numbers stored in the address text base, the number of the rooms requiring the anti-freeze protection can be determined by monitoring the number of the CNTs, and the indoor units corresponding to the terminal rooms requiring the anti-freeze protection can be controlled accordingly by the room numbers stored in the address text base. Meanwhile, the temperature of a terminal room can be monitored in real time, when the temperature of the terminal room in the low-temperature anti-freezing protection state is higher than a preset third protection threshold value, the terminal room does not need to be in the low-temperature anti-freezing protection state at the moment, and at the moment, the outdoor host can control the corresponding indoor unit which starts the low-temperature anti-freezing protection mechanism to exit the low-temperature anti-freezing protection state, even if the current indoor unit is not in a heating mode;
4. in an embodiment of the present invention, when any indoor unit of the entire multi-split air conditioning equipment system is in the cooling mode, the indoor unit cannot control the terminal room in which the indoor unit is located to perform low-temperature anti-freezing protection, so that the indoor unit corresponding to the terminal room to be protected needs to perform monitoring of the operation mode, and when the operation mode of the current indoor unit is monitored to be the cooling mode, the current indoor unit needs to be turned off by the outdoor host to implement low-temperature anti-freezing protection of the terminal room.
5. In an embodiment of the present invention, in order to implement data interaction between the outdoor host and the at least one indoor unit, a MM1192 high-speed communication mode may be adopted, differential signals output by the MM1192 communication chip are respectively loaded onto two buses of the HBS, and a pulse width coding mode is adopted at an output end to perform signal decoding, so that the outdoor host may acquire information of the at least one terminal room corresponding to the indoor unit in a polling mode, and the information of the at least one terminal room may be set to include: at least one terminal room temperature, at least one terminal room number and at least one terminal room CNT number to be protected, in order to cryoprotect the terminal room based on the information of the at least one terminal room. The multi-split air conditioner adopts the communication technology, comprehensively measures and calculates parameters such as terminal room temperature, outdoor environment temperature and the like, and starts a low-temperature anti-freezing protection mechanism in winter according to a preset protection value, so that the terminal room temperature is kept in a comfortable temperature range during the standby period of a client, and meanwhile, energy conservation and intelligent control can be considered.
It should be noted that not all steps and modules in the above flows and system structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution order of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by a plurality of physical entities, or some components in a plurality of independent devices may be implemented together.
In the above embodiments, the hardware unit may be implemented mechanically or electrically. For example, a hardware element may comprise permanently dedicated circuitry or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations. The hardware elements may also comprise programmable logic or circuitry, such as a general purpose processor or other programmable processor, that may be temporarily configured by software to perform the corresponding operations. The specific implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.
While the invention has been shown and described in detail in the drawings and in the preferred embodiments, it is not intended to limit the invention to the embodiments disclosed, and it will be apparent to those skilled in the art that various combinations of the code auditing means in the various embodiments described above may be used to obtain further embodiments of the invention, which are also within the scope of the invention.
Claims (10)
1. The low-temperature anti-freezing protection method is applied to multi-connected air conditioning equipment and is characterized by comprising the following steps of:
determining the outdoor environment temperature of an outdoor host of a multi-connected air-conditioning device, wherein the multi-connected air-conditioning device comprises the outdoor host and at least one indoor unit, and the outdoor host can control the at least one indoor unit;
determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room;
determining whether the outdoor environment temperature is lower than a preset first protection threshold, wherein the first protection threshold is used for representing that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode;
and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, controlling the at least one indoor unit to be protected to be in a heating mode so as to enable at least one terminal room to be protected to be in a low-temperature anti-freezing protection state.
2. The method of claim 1,
when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, controlling the at least one indoor unit to be protected to be in a heating mode so as to enable at least one terminal room to be protected to be in a low-temperature anti-freezing protection state, including:
when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, utilizing the outdoor host machine to perform zero clearing operation on a counter CNT;
for each of the at least one terminal room, performing:
acquiring the current terminal room temperature corresponding to the current terminal room;
determining whether the temperature of the current terminal room is lower than a preset second protection threshold, wherein the second protection threshold is used for representing that a current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode;
when the temperature of the current terminal room is determined to be lower than the preset second protection threshold value, determining the serial number of the current terminal room;
storing the current terminal room number into a preset address text library;
updating the CNT number to match the CNT number with a total number of room numbers stored in the address text repository.
3. The method of claim 2,
after the updating the CNT number, further comprising:
monitoring in real time whether the CNT is zero;
when the CNT is monitored to be not zero, controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state;
monitoring the current terminal room temperature of the current terminal room in real time;
determining whether the temperature of the current terminal room is higher than a preset third protection threshold, wherein the third protection threshold is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode;
and when the current temperature is determined to be higher than the preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and returning to the zero clearing operation of the CNT by using the outdoor host machine.
4. The method of claim 3,
after the monitoring that the CNT is not zero, before the controlling, by the outdoor host, a current indoor unit to start a heating mode, further comprising:
determining whether the current operation mode of the current indoor unit is a refrigeration mode;
when the current operation mode is determined to be the refrigeration mode, the current indoor unit is closed by using the outdoor host;
and recording the current operation mode of the current indoor unit.
5. The method according to any one of claims 1 to 4,
after the determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air-conditioning equipment, before the determining whether the outdoor environment temperature is lower than a preset first protection threshold, further comprising:
acquiring information of the at least one terminal room, wherein the information of the at least one terminal room comprises: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number;
and/or;
and data transmission is carried out between the outdoor host and the at least one indoor unit in a MM1192 high-speed communication mode, differential signals output by the MM1192 communication chip are loaded to two buses of the HBS respectively, and signal decoding is carried out at an output end in a pulse width coding mode.
6. A multi-connected air conditioning apparatus, comprising:
the system comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining the outdoor environment temperature of an outdoor host of a multi-connected air-conditioning device, the multi-connected air-conditioning device comprises the outdoor host and at least one indoor unit, and the outdoor host can control the at least one indoor unit;
the second determining module is used for determining at least one terminal room corresponding to the at least one indoor unit of the multi-connected air conditioning equipment, wherein one indoor unit corresponds to one terminal room;
the processing module is configured to determine whether the outdoor environment temperature determined by the first determining module is lower than a preset first protection threshold, where the first protection threshold is used to indicate that the outdoor host needs to control at least one indoor unit to be protected to be in a heating mode; and when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, controlling the at least one indoor unit to be protected to be in a heating mode, so that the at least one terminal room to be protected determined by the second determination module is in a low-temperature anti-freezing protection state.
7. The multi-connected air conditioning apparatus according to claim 6,
the processing module is configured to perform:
when the outdoor environment temperature is determined to be lower than the preset first protection threshold value, utilizing the outdoor host machine to perform zero clearing operation on a counter CNT;
acquiring the temperature of a current terminal room corresponding to the current terminal room for each terminal room in the at least one terminal room;
determining whether the temperature of the current terminal room is lower than a preset second protection threshold, wherein the second protection threshold is used for representing that a current indoor unit corresponding to the current terminal room needs to control the current terminal room to be in a heating mode;
when the temperature of the current terminal room is determined to be lower than the preset second protection threshold value, determining the serial number of the current terminal room;
storing the current terminal room number into a preset address text library;
updating the CNT number to match the CNT number with a total number of room numbers stored in the address text repository.
8. The multi-connected air conditioning apparatus according to claim 7,
further comprising: a monitoring module;
the monitoring module is used for executing:
monitoring in real time whether the CNT is zero;
when the CNT is monitored to be not zero, controlling the current indoor unit to start a heating mode by using the outdoor host machine so as to enable the current terminal room to be in a low-temperature anti-freezing protection state;
monitoring the current terminal room temperature of the current terminal room in real time;
determining whether the temperature of the current terminal room is higher than a preset third protection threshold, wherein the third protection threshold is used for representing that an indoor unit corresponding to the current terminal room needs to be controlled is not in a heating mode;
and when the current temperature is determined to be higher than the preset third protection threshold value, controlling the current indoor unit to close the heating mode by using the outdoor host machine, and returning to the zero clearing operation of the CNT by using the outdoor host machine.
9. The multi-connected air conditioning apparatus according to claim 8,
further comprising: a mode determination module;
the mode determining module is used for determining whether the current operation mode of the current indoor unit is a refrigeration mode; when the current operation mode is determined to be the refrigeration mode, the current indoor unit is closed by using the outdoor host; and recording the current operation mode of the current indoor unit.
10. The multi-connected air conditioning apparatus according to any one of claims 6 to 9,
further comprising: an acquisition module;
the obtaining module is configured to obtain information of the at least one terminal room, where the information of the at least one terminal room includes: at least one terminal room temperature, at least one terminal room number and at least one terminal room to be protected CNT number.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008256260A (en) * | 2007-04-04 | 2008-10-23 | Daikin Ind Ltd | Air conditioning system and air-conditioning management device |
| KR20080112670A (en) * | 2007-06-22 | 2008-12-26 | 삼성전자주식회사 | Multi air conditioner capable of heating and cooling simultaneously and control method thereof |
| CN102889669A (en) * | 2012-10-26 | 2013-01-23 | 四川长虹电器股份有限公司 | Method for setting air-conditioning address |
| CN103206764A (en) * | 2012-01-17 | 2013-07-17 | 力博特公司 | Air-conditioner and self-cleaning method thereof |
| CN109539500A (en) * | 2018-10-18 | 2019-03-29 | 青岛海尔空调器有限总公司 | Heating equipment and its energy-saving heat preserving control method |
| CN110030705A (en) * | 2019-04-01 | 2019-07-19 | 广东美的暖通设备有限公司 | The control method of multi-line system |
| CN110762740A (en) * | 2019-10-12 | 2020-02-07 | 青岛海信日立空调系统有限公司 | Multi-connected air conditioner control method and device and multi-connected air conditioner control system |
| CN110762783A (en) * | 2019-10-14 | 2020-02-07 | 广东美的暖通设备有限公司 | Addressing method and system for multi-split air conditioner heat recovery system and storage medium |
-
2020
- 2020-10-29 CN CN202011181110.4A patent/CN112378045B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008256260A (en) * | 2007-04-04 | 2008-10-23 | Daikin Ind Ltd | Air conditioning system and air-conditioning management device |
| KR20080112670A (en) * | 2007-06-22 | 2008-12-26 | 삼성전자주식회사 | Multi air conditioner capable of heating and cooling simultaneously and control method thereof |
| CN103206764A (en) * | 2012-01-17 | 2013-07-17 | 力博特公司 | Air-conditioner and self-cleaning method thereof |
| CN102889669A (en) * | 2012-10-26 | 2013-01-23 | 四川长虹电器股份有限公司 | Method for setting air-conditioning address |
| CN109539500A (en) * | 2018-10-18 | 2019-03-29 | 青岛海尔空调器有限总公司 | Heating equipment and its energy-saving heat preserving control method |
| CN110030705A (en) * | 2019-04-01 | 2019-07-19 | 广东美的暖通设备有限公司 | The control method of multi-line system |
| CN110762740A (en) * | 2019-10-12 | 2020-02-07 | 青岛海信日立空调系统有限公司 | Multi-connected air conditioner control method and device and multi-connected air conditioner control system |
| CN110762783A (en) * | 2019-10-14 | 2020-02-07 | 广东美的暖通设备有限公司 | Addressing method and system for multi-split air conditioner heat recovery system and storage medium |
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