CN112413822A - Low-temperature anti-freezing protection method and air conditioning equipment - Google Patents
Low-temperature anti-freezing protection method and air conditioning equipment Download PDFInfo
- Publication number
- CN112413822A CN112413822A CN202011351917.8A CN202011351917A CN112413822A CN 112413822 A CN112413822 A CN 112413822A CN 202011351917 A CN202011351917 A CN 202011351917A CN 112413822 A CN112413822 A CN 112413822A
- Authority
- CN
- China
- Prior art keywords
- indoor unit
- current indoor
- command
- user
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a low-temperature anti-freezing protection method and air conditioning equipment, wherein the method comprises the following steps: determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit; when the current indoor unit is determined to be in a user command shutdown state, determining whether the current indoor unit meets a preset anti-freezing startup condition; when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state; determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and a user command state; and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in a low-temperature anti-freezing protection state. The scheme can reduce damage to indoor storage materials due to over-low room temperature.
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 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 air conditioning equipment need to be comprehensively considered so as to improve the comfort level of a user for heating by using the heat pump type air conditioner in winter.
Chinese patent application No. 201410748716.X discloses a one-drive-multiple air conditioner, an air conditioner anti-freezing protection method, and an air conditioner anti-freezing protection system that detects a refrigerant outlet temperature of an indoor unit connected to a low-pressure valve return pipe through a temperature sensor, and reduces compressor efficiency of an outdoor unit based on the refrigerant outlet temperature of the indoor unit to prevent an evaporator of the indoor unit from freezing.
As can be seen from the above description, the prior art reduces the compressor efficiency of the outdoor unit based on the refrigerant outlet temperature of the indoor unit to prevent the evaporator of the indoor unit from freezing, but the above method may damage the indoor storage due to the excessively low room temperature.
Disclosure of Invention
The embodiment of the invention provides a low-temperature anti-freezing protection method and air conditioning equipment, which can reduce damage to indoor storage objects due to over-low room temperature.
In a first aspect, an embodiment of the present invention provides a low temperature anti-freezing protection method, applied to an air conditioning device, including:
determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit;
when the current indoor unit is determined to be in the user command shutdown state, determining whether the current indoor unit meets a preset anti-freezing startup condition;
when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and a user command state;
and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in the low-temperature anti-freezing protection state.
Preferably, the first and second electrodes are formed of a metal,
the determining whether the current indoor unit is in a user command shutdown state includes:
a1: determining whether a remote controller receives a user starting command at a decoding receiving position;
a2: when the remote controller receives the user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
a3: and when the remote controller receiving decoding part does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state.
Preferably, the first and second electrodes are formed of a metal,
b1: determining whether a user starting command is received at a receiving and decoding part of the line controller;
b2: when the fact that the wire controller receives the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is not in a user command power-off state is determined;
b3: and when the fact that the wire controller does not receive the user power-on command at the decoding receiving position is determined, determining that the current indoor unit is in a user command power-off state.
Preferably, the first and second electrodes are formed of a metal,
c1: determining whether a user starting command is received at a receiving and decoding position of the computer remote monitoring software PCM;
c2: when the PCM receiving and decoding part receives the user starting command, determining that the current indoor unit is not in a user command shutdown state;
c3: and when the PCM receiving and decoding part does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state.
Preferably, the first and second electrodes are formed of a metal,
d1: determining whether a user starting-up command is received at a timing starting-up and shutting-down module;
d2: when the timing power on/off module receives a user power on command, determining that the current indoor unit is not in a user command power off state;
d3: and when the timing power on/off module does not receive the user power on command, determining that the current indoor unit is in a user command power off state.
Preferably, the first and second electrodes are formed of a metal,
the determining whether the current indoor unit meets a preset anti-freezing protection exit condition includes:
s1: detecting whether the current indoor temperature is higher than a preset first temperature threshold, if so, executing a step S3, otherwise, executing a step S2;
s2: determining whether the current indoor unit receives a user starting command, if so, executing a step S3, otherwise, executing a step S5;
s3: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step S4;
s4: executing the user starting command;
s5: and determining that the current indoor unit does not meet the preset anti-freezing protection exit condition.
Preferably, the first and second electrodes are formed of a metal,
the determining whether the current indoor unit meets the preset anti-freezing starting-up condition includes:
detecting whether the current indoor temperature is lower than a preset second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value;
when the current indoor temperature is lower than the preset second temperature threshold, acquiring a current operation mode of the outdoor unit;
determining whether a current operation mode of the outdoor unit is a heating mode;
when the current operation mode of the outdoor unit is determined to be the heating mode, determining that the current indoor unit meets the preset anti-freezing starting-up condition;
and when the current operation mode of the outdoor unit is determined not to be the heating mode, determining that the current indoor unit does not meet the preset anti-freezing starting-up condition.
Preferably, the first and second electrodes are formed of a metal,
further comprising:
when the current indoor unit is determined to be in the user command power-off state, setting the flag bit of the user command power-on state to be 0;
detecting whether the flag bit of the user command starting state is 1;
when detecting that the user command starting-up state flag bit is not 1, determining whether the current indoor unit meets the preset anti-freezing starting-up condition;
and executing the user command when the flag bit of the user command starting state is detected to be 1.
Preferably, the first and second electrodes are formed of a metal,
when the current indoor unit meets the preset anti-freezing starting condition, setting the anti-freezing protection starting marker position to be 1;
detecting whether the anti-freezing protection starting marker bit is 1 or not;
when the anti-freezing protection starting marker bit is detected to be 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
and when detecting that the anti-freezing protection starting marker bit is not 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state.
In a second aspect, an embodiment of the present invention provides an air conditioning apparatus, including:
a user command determination module: the indoor unit is used for determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit;
the anti-freezing protection execution module: the indoor unit is used for determining whether the current indoor unit meets a preset anti-freezing starting condition or not when the current indoor unit is determined to be in the user command shutdown state; when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
the anti-freezing protection quit module: the indoor unit is used for determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and a user command state; and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in the low-temperature anti-freezing protection state.
Preferably, the first and second electrodes are formed of a metal,
the user command determination module is used for executing:
a1: determining whether a remote controller receives a user starting command at a decoding receiving position;
a2: when the remote controller receives the user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
a3: and when the remote controller receiving decoding part does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state.
Preferably, the first and second electrodes are formed of a metal,
b1: determining whether a user starting command is received at a receiving and decoding part of the line controller;
b2: when the fact that the wire controller receives the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is not in a user command power-off state is determined;
b3: and when the fact that the wire controller does not receive the user power-on command at the decoding receiving position is determined, determining that the current indoor unit is in a user command power-off state.
Preferably, the first and second electrodes are formed of a metal,
c1: determining whether a user starting command is received at a receiving and decoding position of the computer remote monitoring software PCM;
c2: when the PCM receiving and decoding part receives the user starting command, determining that the current indoor unit is not in a user command shutdown state;
c3: and when the PCM receiving and decoding part does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state.
Preferably, the first and second electrodes are formed of a metal,
d1: determining whether a user starting-up command is received at a timing starting-up and shutting-down module;
d2: when the timing power on/off module receives a user power on command, determining that the current indoor unit is not in a user command power off state;
d3: and when the timing power on/off module does not receive the user power on command, determining that the current indoor unit is in a user command power off state.
Preferably, the first and second electrodes are formed of a metal,
the anti-freezing protection exit module is used for executing:
s1: detecting whether the current indoor temperature is higher than a preset first temperature threshold, if so, executing a step S3, otherwise, executing a step S2;
s2: determining whether the current indoor unit receives a user starting command, if so, executing a step S3, otherwise, executing a step S5;
s3: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step S4;
s4: executing the user starting command;
s5: and determining that the current indoor unit does not meet the preset anti-freezing protection exit condition.
Preferably, the first and second electrodes are formed of a metal,
the anti-freezing protection execution module is used for executing:
detecting whether the current indoor temperature is lower than a preset second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value;
when the current indoor temperature is lower than the preset second temperature threshold, acquiring a current operation mode of the outdoor unit;
determining whether a current operation mode of the outdoor unit is a heating mode;
when the current operation mode of the outdoor unit is determined to be the heating mode, determining that the current indoor unit meets the preset anti-freezing starting-up condition;
and when the current operation mode of the outdoor unit is determined not to be the heating mode, determining that the current indoor unit does not meet the preset anti-freezing starting-up condition.
Preferably, the first and second electrodes are formed of a metal,
further comprising:
the user command mark module is used for setting the mark position of the user command starting state to be 0 when the current indoor unit is determined to be in the user command shutdown state; detecting whether the flag bit of the user command starting state is 1; when detecting that the user command starting-up state flag bit is not 1, determining whether the current indoor unit meets the preset anti-freezing starting-up condition; and executing the user command when the flag bit of the user command starting state is detected to be 1.
Preferably, the first and second electrodes are formed of a metal,
the anti-freezing starting-up marking module is used for setting the anti-freezing protection starting-up marking position to be 1 when the current indoor unit is determined to meet the preset anti-freezing starting-up condition; detecting whether the anti-freezing protection starting marker bit is 1 or not; when the anti-freezing protection starting marker bit is detected to be 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state; and when detecting that the anti-freezing protection starting marker bit is not 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state.
The embodiment of the invention provides a low-temperature anti-freezing protection method and air conditioning equipment, because the existing air conditioning equipment does not have the function of indoor low-temperature anti-freezing protection, namely, the indoor stored objects cannot be prevented from being damaged after the room temperature is too low, in order to reduce the damage to the indoor stored objects with the room temperature being too low, whether a user command is received by a current indoor unit or not needs to be detected firstly, the user command is executed preferentially when the user command is received, the low-temperature anti-freezing protection is executed when the user command is not received and the preset anti-freezing condition is met, and meanwhile, when the current indoor unit is in a low-temperature starting anti-freezing protection state, if the anti-freezing protection exit condition is met, the current indoor unit can be. By the mode, the indoor storage materials can not be damaged too much under the condition of too low room temperature.
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 an air conditioning apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another air conditioning apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another air conditioning apparatus 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 protecting against freezing at low temperature, which is applied to an air conditioning device, and includes:
step 101: determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit;
step 102: when the current indoor unit is determined to be in a user command shutdown state, determining whether the current indoor unit meets a preset anti-freezing startup condition;
step 103: when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
step 104: determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and a user command state;
step 105: and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in a low-temperature anti-freezing protection state.
In the embodiment of the invention, because the existing air conditioning equipment does not have the function of indoor low-temperature anti-freezing protection, namely, the indoor stored objects cannot be prevented from being damaged after the indoor temperature is too low, in order to reduce the damage to the indoor stored objects with the too low indoor temperature, whether the current indoor unit receives a user command needs to be detected firstly, the user command is preferentially executed when the user command is received, the low-temperature anti-freezing protection is executed when the user command is not received and the preset anti-freezing starting condition is met, and meanwhile, when the current indoor unit is in the low-temperature anti-freezing protection state, if the anti-freezing protection exit condition is met, the current indoor unit can be controlled not to be in the low-temperature. By the mode, the indoor storage materials can not be damaged too much under the condition of too low room temperature.
In order to determine the user command state of the current indoor unit, in an implementation of the present invention, in step 101 in the foregoing embodiment, it is determined whether the current indoor unit is in the user command shutdown state, which may be specifically implemented by the following manner:
a1: determining whether a remote controller receives a user starting command at a decoding receiving position;
a2: when the remote controller receives a user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
a3: when the remote controller receiving decoding position does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
b1: determining whether a user starting command is received at a receiving and decoding part of the line controller;
b2: when the wired controller receives a user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
b3: when the fact that the wire controller does not receive the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is in a user command power-off state is determined;
and/or the presence of a gas in the gas,
c1: determining whether a user starting command is received at a receiving and decoding position of the computer remote monitoring software PCM;
c2: when the PCM receiving and decoding part receives a user power-on command, determining that the current indoor unit is not in a user command power-off state;
c3: when the PCM receiving and decoding part is determined not to receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
d1: determining whether a user starting-up command is received at a timing starting-up and shutting-down module;
d2: when the timing power on/off module receives a user power on command, determining that the current indoor unit is not in a user command power off state;
d3: and when the timing power on/off module does not receive the user power on command, determining that the current indoor unit is in a user command power off state.
In the embodiment of the present invention, the on/off state of the user command is determined through the four specific determination nodes: the remote controller receives the decoding place, the line controller receives the decoding place, the PCM receives the decoding place and the timing on-off module, and when one of the four decision nodes receives the user command, the user command state of the current indoor unit is the on state, namely the user command needs to be executed preferentially, otherwise, when none of the four decision nodes receives the user command, the user command state of the current indoor unit is the off state. Through setting a plurality of specific judgment nodes, the command state of the user can be conveniently determined.
In order to determine whether the current indoor unit needs to perform an anti-freeze protection exit mechanism, in an embodiment of the present invention, in step 104 in the above embodiment, determining whether the current indoor unit meets a preset anti-freeze protection exit condition may specifically be implemented as follows:
s1: detecting whether the current indoor temperature is higher than a preset first temperature threshold, if so, executing step S3, otherwise, executing step S2;
s2: determining whether the current indoor unit receives a user starting command, if so, executing the step S3, otherwise, executing the step S5;
s3: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step S4;
s4: executing a user starting command;
s5: and determining that the current indoor unit does not meet the preset anti-freezing protection exit condition.
In the embodiment of the present invention, in order to perform good low-temperature protection on indoor stored objects, when low-temperature anti-freezing protection is required, the current indoor unit may be controlled to be in the low-temperature anti-freezing protection state, and when low-temperature anti-freezing protection is not required, the current indoor unit may be controlled not to be in the low-temperature anti-freezing protection state, so that an anti-freezing protection exit condition may be preset, for example: the room temperature is above the first temperature threshold (8 ℃) or upon receiving a user command. Based on this, when it is detected that the current indoor temperature is higher than the preset first temperature threshold (8 ℃), it is indicated that the current indoor unit does not need to perform low-temperature anti-freezing protection, an anti-freezing protection exit mechanism can be executed, and meanwhile, when it is detected that the current indoor temperature is not higher than the preset first temperature threshold, whether the current indoor unit receives a user command or not can be detected at this time based on a principle that the user command is preferentially executed, and when the current indoor unit receives the user command, the current indoor unit can be controlled to execute the anti-freezing protection exit mechanism and preferentially execute the user command.
In order to determine whether the current indoor unit meets the preset anti-freeze startup condition, in an embodiment of the present invention, the determining whether the current indoor unit meets the preset anti-freeze startup condition in step 102 in the foregoing embodiment may be specifically implemented as follows:
detecting whether the current indoor temperature is lower than a preset second temperature threshold value or not, wherein the second temperature threshold value is smaller than the first temperature threshold value;
when the current indoor temperature is lower than a preset second temperature threshold value, acquiring the current operation mode of the outdoor unit;
determining whether the current operation mode of the outdoor unit is a heating mode;
when the current operation mode of the outdoor unit is determined to be the heating mode, determining that the current indoor unit meets a preset anti-freezing starting condition;
and when the current operation mode of the outdoor unit is determined not to be the heating mode, determining that the current indoor unit does not meet the preset anti-freezing starting-up condition.
In the embodiment of the present invention, in order to perform good low-temperature protection on indoor stored objects, the current indoor unit may be controlled to be in the low-temperature anti-freezing protection state when low-temperature anti-freezing protection is required, and the current indoor unit may be controlled not to be in the low-temperature anti-freezing protection state when low-temperature anti-freezing protection is not required, so that anti-freezing startup conditions may be preset, such as: the room temperature is below the second temperature threshold (5 ℃) and the user commands a shutdown. Based on the principle that the user command is preferentially executed, when it is determined that the user command is in a shutdown state and the current indoor temperature is detected to be lower than a preset second temperature threshold (5 ℃), it can be indicated that the current indoor unit needs to be protected from low-temperature freezing, but the current indoor unit cannot be directly controlled to operate in a heating mode at the moment, and the current operation mode of the outdoor unit needs to be further detected. When the indoor unit operates in the cooling mode, the current indoor unit cannot start the heating mode, so that when the outdoor unit is determined to be in the heating mode, the current indoor unit can be controlled to be in a low-temperature anti-freezing protection state.
In order to execute corresponding control according to the user command status, in an embodiment of the present invention, the foregoing embodiment further includes:
when the current indoor unit is determined to be in a user command shutdown state, setting a user command startup state flag position to be 0;
detecting whether a flag bit of a user command starting state is 1;
when detecting that a user command starting state flag bit is not 1, determining whether the current indoor unit meets a preset anti-freezing starting condition;
and when detecting that the flag bit of the power-on state of the user command is 1, executing the user command.
In the embodiment of the present invention, in order to execute corresponding control according to the user command state, when it is determined that the user command is in the power-off state, the flag bit of the power-on state of the corresponding user command is set to 0, and when it is detected that the flag bit of the power-on state of the user command is not 1, it indicates that the user command is not received, at this time, it may be further determined whether the current indoor unit meets a preset freeze-proof power-on condition, and corresponding control is executed.
In order to execute corresponding control according to the startup state of the anti-freeze protection, in an embodiment of the present invention, the foregoing embodiment further includes:
when the current indoor unit meets the preset anti-freezing starting condition, setting the anti-freezing protection starting marker position to be 1;
detecting whether the anti-freezing protection starting marker bit is 1 or not;
when detecting that the anti-freezing protection starting marker bit is 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
and when detecting that the starting marker bit of the anti-freezing protection is not 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state.
In the embodiment of the present invention, in order to execute corresponding control according to the anti-freeze protection startup state, when it is determined that the current indoor unit satisfies the preset anti-freeze startup condition, the corresponding anti-freeze protection startup flag is set to 0, when it is detected that the anti-freeze protection startup flag is not set to 1, it indicates that the low-temperature anti-freeze protection is not required to be started, when it is detected that the anti-freeze protection startup flag is set to 1, it indicates that the low-temperature anti-freeze protection is required to be started, and at this time, corresponding control may be.
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: for each indoor unit in at least one indoor unit, determining whether a remote controller receiving decoding part receives a user starting command, if so, executing a step 202, otherwise, executing a step 203;
step 202: determining that the current indoor unit is not in a user command shutdown state, setting a user command startup flag position to 1, and executing step 204;
step 203: determining that the current indoor unit is in a user command power-off state, setting the flag bit of the user command power-on state to be 0, and executing step 204;
for example, when the user command is in the power-off state, the flag bit of the power-on state of the user command may be set as follows: user _ Onoff is 0
Step 204: detecting whether the flag bit of the user command power-on state is 0, if yes, executing step 206, otherwise, executing step 205.
Step 205: executing the first user command;
step 206: detecting whether the current indoor temperature is lower than a preset second temperature threshold value or not;
specifically, whether the current indoor temperature and the user command state meet the anti-freezing startup condition or not can be judged through the MCU.
For example, if the second temperature threshold is 5 ℃, when the MCU determines that the current indoor temperature is less than 5 ℃ and the user command is off, the MCU satisfies the predetermined freeze-proof power-on condition, and can control the current indoor unit to automatically power on, perform recognition, operate with medium wind, and transmit the power-on command to the outdoor unit through 485 units, and if the current indoor temperature is not satisfied with the predetermined freeze-proof power-on condition, the MCU needs to continue to detect and determine.
Step 207: when the current indoor temperature is lower than a preset second temperature threshold value, acquiring the current operation mode of the outdoor unit;
step 208: determining whether the current operation mode of the outdoor unit is a heating mode, if so, executing step 209, otherwise, executing step 210;
step 209: setting the anti-freezing protection starting-up flag position to 1, and executing step 211;
step 210: setting the anti-freezing protection starting-up flag position to 0, and executing step 211;
for example, the antifreeze protection power-on flag is set to 1, such as: freeze _ Onoff ═ 1;
the position of the anti-freezing protection starting marker is 0, such as: freeze _ Onoff is 0.
Step 211: detecting whether the anti-freezing protection starting flag bit is 1, if so, executing step 212, otherwise, executing step 216;
step 212: controlling the current indoor unit to be in a low-temperature anti-freezing protection state, and executing step 213;
step 213: detecting whether the current indoor temperature is higher than a preset first temperature threshold value according to the current indoor temperature and a user command state, if so, executing step 215, otherwise, executing step 214;
step 214: determining whether the current indoor unit receives a user starting command, if so, executing step 205, otherwise, executing step 216;
step 215: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step 216;
step 216: and controlling the current indoor unit not to be in a low-temperature anti-freezing protection state.
Specifically, during the operation process of anti-freezing startup heating, the user can inquire the current protection state by using the remote control test code so as to clarify the user or after-sales personnel. Such as: the corresponding relation between the remote controller test code and the anti-freezing startup state display screen of the air conditioning equipment can be preset, and after the air conditioning equipment receives the test code sent by the user, the display screen displays corresponding state prompt information.
As shown in fig. 3, an embodiment of the present invention provides an air conditioning apparatus, including:
user command determination module 301: the indoor unit is used for determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit;
the anti-freeze protection execution module 302: the control device is used for determining whether the current indoor unit meets a preset anti-freezing starting condition or not when the current indoor unit is determined to be in a user command shutdown state; when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
the anti-freeze protection exit module 303: the indoor unit is used for determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and the user command state; and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in a low-temperature anti-freezing protection state.
In the embodiment of the invention, because the existing air conditioning equipment does not have the function of indoor low-temperature anti-freezing protection, namely, the indoor stored objects cannot be prevented from being damaged after the indoor temperature is too low, in order to reduce the damage to the indoor stored objects with the too low indoor temperature, whether a user command is received by the current indoor unit or not needs to be detected through the user command determining module firstly, the user command is preferentially executed when the user command is received, the low-temperature anti-freezing protection is executed by using the anti-freezing protection executing module when the user command is not received and the preset anti-freezing starting condition is met, and meanwhile, when the current indoor unit is in the low-temperature anti-freezing protection state, if the anti-freezing protection quitting condition is met, the current indoor unit can be controlled not to be. By the mode, the indoor storage materials can not be damaged too much under the condition of too low room temperature.
In an embodiment of the present invention, the user command determining module 301 is configured to perform:
a1: determining whether a remote controller receives a user starting command at a decoding receiving position;
a2: when the remote controller receives a user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
a3: when the remote controller receiving decoding position does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
b1: determining whether a user starting command is received at a receiving and decoding part of the line controller;
b2: when the wired controller receives a user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
b3: when the fact that the wire controller does not receive the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is in a user command power-off state is determined;
and/or the presence of a gas in the gas,
c1: determining whether a user starting command is received at a receiving and decoding position of the computer remote monitoring software PCM;
c2: when the PCM receiving and decoding part receives a user power-on command, determining that the current indoor unit is not in a user command power-off state;
c3: when the PCM receiving and decoding part is determined not to receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
d1: determining whether a user starting-up command is received at a timing starting-up and shutting-down module;
d2: when the timing power on/off module receives a user power on command, determining that the current indoor unit is not in a user command power off state;
d3: and when the timing power on/off module does not receive the user power on command, determining that the current indoor unit is in a user command power off state.
In an embodiment of the present invention, the anti-freeze protection exit module 303 is configured to perform:
s1: detecting whether the current indoor temperature is higher than a preset first temperature threshold, if so, executing step S3, otherwise, executing step S2;
s2: determining whether the current indoor unit receives a user starting command, if so, executing the step S3, otherwise, executing the step S5;
s3: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step S4;
s4: executing a user starting command;
s5: and determining that the current indoor unit does not meet the preset anti-freezing protection exit condition.
In an embodiment of the present invention, the anti-freeze protection execution module 302 is configured to execute:
detecting whether the current indoor temperature is lower than a preset second temperature threshold value or not, wherein the second temperature threshold value is smaller than the first temperature threshold value;
when the current indoor temperature is lower than a preset second temperature threshold value, acquiring the current operation mode of the outdoor unit;
determining whether the current operation mode of the outdoor unit is a heating mode;
when the current operation mode of the outdoor unit is determined to be the heating mode, determining that the current indoor unit meets a preset anti-freezing starting condition;
and when the current operation mode of the outdoor unit is determined not to be the heating mode, determining that the current indoor unit does not meet the preset anti-freezing starting-up condition.
Based on the air conditioning equipment shown in fig. 3, as shown in fig. 4, in an embodiment of the present invention, the air conditioning equipment further includes:
the user command flag module 304 is configured to set a flag bit of a user command power-on state to 0 when it is determined that the current indoor unit is in the user command power-off state; detecting whether a flag bit of a user command starting state is 1; when detecting that a user command starting state flag bit is not 1, determining whether the current indoor unit meets a preset anti-freezing starting condition; and when detecting that the flag bit of the power-on state of the user command is 1, executing the user command.
Based on the air conditioning equipment shown in fig. 3, as shown in fig. 5, in an embodiment of the present invention, the air conditioning equipment further includes:
an anti-freeze startup flag module 305, configured to set an anti-freeze protection startup flag position to 1 when it is determined that the current indoor unit meets a preset anti-freeze startup condition; detecting whether the anti-freezing protection starting marker bit is 1 or not; when detecting that the anti-freezing protection starting marker bit is 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state; and when detecting that the starting marker bit of the anti-freezing protection is not 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state.
It is to be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the air conditioning apparatus. In other embodiments of the invention, the air conditioning apparatus may include more or fewer components than illustrated, 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.
An embodiment of the present invention further provides an air conditioning apparatus, including: 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, because the existing air conditioning equipment does not have the function of indoor low-temperature anti-freezing protection, namely, the indoor stored objects cannot be prevented from being damaged after the indoor temperature is too low, in order to reduce the damage to the indoor stored objects with the too low indoor temperature, whether the current indoor unit receives a user command needs to be detected firstly, the user command is preferentially executed when the user command is received, the low-temperature anti-freezing protection is executed when the user command is not received and the preset anti-freezing starting condition is met, and meanwhile, when the current indoor unit is in the low-temperature anti-freezing protection state, if the anti-freezing protection exit condition is met, the current indoor unit can be controlled not to be in the low-temperature. By the mode, the indoor storage materials can not be damaged too much under the condition of too low room temperature;
2. in an embodiment of the present invention, the on/off state of the user command is determined through the four specific determination nodes: the remote controller receives the decoding place, the line controller receives the decoding place, the PCM receives the decoding place and the timing on-off module, and when one of the four decision nodes receives the user command, the user command state of the current indoor unit is the on state, namely the user command needs to be executed preferentially, otherwise, when none of the four decision nodes receives the user command, the user command state of the current indoor unit is the off state. Through setting a plurality of specific judgment nodes, the user command state can be conveniently determined;
3. in an embodiment of the present invention, in order to perform good low-temperature protection on indoor stored objects, when low-temperature anti-freezing protection is required, the current indoor unit may be controlled to be in the low-temperature anti-freezing protection state, and when low-temperature anti-freezing protection is not required, the current indoor unit may be controlled not to be in the low-temperature anti-freezing protection state, so that an anti-freezing protection exit condition may be preset, for example: the room temperature is above the first temperature threshold (8 ℃) or upon receiving a user command. Based on this, when the current indoor temperature is detected to be higher than the preset first temperature threshold (8 ℃), it is indicated that the current indoor unit does not need low-temperature anti-freezing protection, an anti-freezing protection exit mechanism can be executed, and meanwhile, when the current indoor temperature is detected to be not higher than the preset first temperature threshold, whether the current indoor unit receives a user command or not can be detected at this time based on the principle that the user command is preferentially executed, and when the current indoor unit receives the user command, the current indoor unit can be controlled to execute the anti-freezing protection exit mechanism and preferentially execute the user command;
4. in an embodiment of the present invention, in order to perform good low-temperature protection on indoor stored objects, when low-temperature anti-freezing protection is required, the current indoor unit may be controlled to be in a low-temperature anti-freezing protection state, and when low-temperature anti-freezing protection is not required, the current indoor unit may not be in the low-temperature anti-freezing protection state, so that anti-freezing startup conditions may be preset, such as: the room temperature is below the second temperature threshold (5 ℃) and the user commands a shutdown. Based on the principle that the user command is preferentially executed, when it is determined that the user command is in a shutdown state and the current indoor temperature is detected to be lower than a preset second temperature threshold (5 ℃), it can be indicated that the current indoor unit needs to be protected from low-temperature freezing, but the current indoor unit cannot be directly controlled to operate in a heating mode at the moment, and the current operation mode of the outdoor unit needs to be further detected. When the indoor unit operates in a cooling mode, the current indoor unit cannot start a heating mode, so that when the outdoor unit is determined to be in the heating mode, the current indoor unit can be controlled to be in a low-temperature anti-freezing protection state;
5. in an embodiment of the present invention, in order to execute corresponding control according to the state of the user command, when it is determined that the user command is in the power-off state, the flag bit of the power-on state of the corresponding user command is set to 0, and when it is detected that the flag bit of the power-on state of the user command is not 1, it indicates that the user command is not received, at this time, it may be further determined whether the current indoor unit meets a preset freeze-proof power-on condition, and corresponding control is executed.
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. A low-temperature anti-freezing protection method is applied to air conditioning equipment and is characterized by comprising the following steps:
determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit;
when the current indoor unit is determined to be in the user command shutdown state, determining whether the current indoor unit meets a preset anti-freezing startup condition;
when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and a user command state;
and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in the low-temperature anti-freezing protection state.
2. The method of claim 1,
the determining whether the current indoor unit is in a user command shutdown state includes:
a1: determining whether a remote controller receives a user starting command at a decoding receiving position;
a2: when the remote controller receives the user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
a3: when the remote controller receiving decoding position does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
b1: determining whether a user starting command is received at a receiving and decoding part of the line controller;
b2: when the fact that the wire controller receives the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is not in a user command power-off state is determined;
b3: when the fact that the wire controller does not receive the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is in a user command power-off state is determined;
and/or the presence of a gas in the gas,
c1: determining whether a user starting command is received at a receiving and decoding position of the computer remote monitoring software PCM;
c2: when the PCM receiving and decoding part receives the user starting command, determining that the current indoor unit is not in a user command shutdown state;
c3: when the PCM receiving and decoding part does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
d1: determining whether a user starting-up command is received at a timing starting-up and shutting-down module;
d2: when the timing power on/off module receives a user power on command, determining that the current indoor unit is not in a user command power off state;
d3: and when the timing power on/off module does not receive the user power on command, determining that the current indoor unit is in a user command power off state.
3. The method of claim 1,
the determining whether the current indoor unit meets a preset anti-freezing protection exit condition includes:
s1: detecting whether the current indoor temperature is higher than a preset first temperature threshold, if so, executing a step S3, otherwise, executing a step S2;
s2: determining whether the current indoor unit receives a user starting command, if so, executing a step S3, otherwise, executing a step S5;
s3: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step S4;
s4: executing the user starting command;
s5: and determining that the current indoor unit does not meet the preset anti-freezing protection exit condition.
4. The method of claim 1,
the determining whether the current indoor unit meets the preset anti-freezing starting-up condition includes:
detecting whether the current indoor temperature is lower than a preset second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value;
when the current indoor temperature is lower than the preset second temperature threshold, acquiring a current operation mode of the outdoor unit;
determining whether a current operation mode of the outdoor unit is a heating mode;
when the current operation mode of the outdoor unit is determined to be the heating mode, determining that the current indoor unit meets the preset anti-freezing starting-up condition;
and when the current operation mode of the outdoor unit is determined not to be the heating mode, determining that the current indoor unit does not meet the preset anti-freezing starting-up condition.
5. The method according to any one of claims 1 to 4,
further comprising:
when the current indoor unit is determined to be in the user command power-off state, setting the flag bit of the user command power-on state to be 0;
detecting whether the flag bit of the user command starting state is 1;
when detecting that the user command starting-up state flag bit is not 1, determining whether the current indoor unit meets the preset anti-freezing starting-up condition;
when detecting that the flag bit of the user command starting state is 1, executing the user command;
and/or the presence of a gas in the gas,
when the current indoor unit meets the preset anti-freezing starting condition, setting the anti-freezing protection starting marker position to be 1;
detecting whether the anti-freezing protection starting marker bit is 1 or not;
when the anti-freezing protection starting marker bit is detected to be 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
and when detecting that the anti-freezing protection starting marker bit is not 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state.
6. Air conditioning apparatus, characterized by comprising:
a user command determination module: the indoor unit is used for determining whether the current indoor unit is in a user command shutdown state or not for each indoor unit in at least one indoor unit;
the anti-freezing protection execution module: the indoor unit is used for determining whether the current indoor unit meets a preset anti-freezing starting condition or not when the current indoor unit is determined to be in the user command shutdown state; when the current indoor unit meets the preset anti-freezing starting-up condition, controlling the current indoor unit to be in a low-temperature anti-freezing protection state;
the anti-freezing protection quit module: the indoor unit is used for determining whether the current indoor unit meets a preset anti-freezing protection exit condition or not according to the current indoor temperature and a user command state; and when the current indoor unit meets the preset anti-freezing protection exit condition, controlling the current indoor unit not to be in the low-temperature anti-freezing protection state.
7. Air conditioning apparatus according to claim 6,
the user command determination module is used for executing:
a1: determining whether a remote controller receives a user starting command at a decoding receiving position;
a2: when the remote controller receives the user power-on command at the decoding position, determining that the current indoor unit is not in a user command power-off state;
a3: when the remote controller receiving decoding position does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
b1: determining whether a user starting command is received at a receiving and decoding part of the line controller;
b2: when the fact that the wire controller receives the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is not in a user command power-off state is determined;
b3: when the fact that the wire controller does not receive the user power-on command at the decoding receiving position is determined, the fact that the current indoor unit is in a user command power-off state is determined;
and/or the presence of a gas in the gas,
c1: determining whether a user starting command is received at a receiving and decoding position of the computer remote monitoring software PCM;
c2: when the PCM receiving and decoding part receives the user starting command, determining that the current indoor unit is not in a user command shutdown state;
c3: when the PCM receiving and decoding part does not receive the user power-on command, determining that the current indoor unit is in a user command power-off state;
and/or the presence of a gas in the gas,
d1: determining whether a user starting-up command is received at a timing starting-up and shutting-down module;
d2: when the timing power on/off module receives a user power on command, determining that the current indoor unit is not in a user command power off state;
d3: and when the timing power on/off module does not receive the user power on command, determining that the current indoor unit is in a user command power off state.
8. Air conditioning apparatus according to claim 6,
the anti-freezing protection exit module is used for executing:
s1: detecting whether the current indoor temperature is higher than a preset first temperature threshold, if so, executing a step S3, otherwise, executing a step S2;
s2: determining whether the current indoor unit receives a user starting command, if so, executing a step S3, otherwise, executing a step S5;
s3: determining that the current indoor unit meets a preset anti-freezing protection exit condition, and executing step S4;
s4: executing the user starting command;
s5: and determining that the current indoor unit does not meet the preset anti-freezing protection exit condition.
9. Air conditioning apparatus according to claim 6,
the anti-freezing protection execution module is used for executing:
detecting whether the current indoor temperature is lower than a preset second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value;
when the current indoor temperature is lower than the preset second temperature threshold, acquiring a current operation mode of the outdoor unit;
determining whether a current operation mode of the outdoor unit is a heating mode;
when the current operation mode of the outdoor unit is determined to be the heating mode, determining that the current indoor unit meets the preset anti-freezing starting-up condition;
and when the current operation mode of the outdoor unit is determined not to be the heating mode, determining that the current indoor unit does not meet the preset anti-freezing starting-up condition.
10. Air conditioning apparatus according to any of claims 6 to 9,
further comprising:
the user command mark module is used for setting the mark position of the user command starting state to be 0 when the current indoor unit is determined to be in the user command shutdown state; detecting whether the flag bit of the user command starting state is 1; when detecting that the user command starting-up state flag bit is not 1, determining whether the current indoor unit meets the preset anti-freezing starting-up condition; when detecting that the flag bit of the user command starting state is 1, executing the user command;
and/or the presence of a gas in the gas,
the anti-freezing starting-up marking module is used for setting the anti-freezing protection starting-up marking position to be 1 when the current indoor unit is determined to meet the preset anti-freezing starting-up condition; detecting whether the anti-freezing protection starting marker bit is 1 or not; when the anti-freezing protection starting marker bit is detected to be 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state; and when detecting that the anti-freezing protection starting marker bit is not 1, controlling the current indoor unit to be in a low-temperature anti-freezing protection state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011351917.8A CN112413822A (en) | 2020-11-26 | 2020-11-26 | Low-temperature anti-freezing protection method and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011351917.8A CN112413822A (en) | 2020-11-26 | 2020-11-26 | Low-temperature anti-freezing protection method and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112413822A true CN112413822A (en) | 2021-02-26 |
Family
ID=74842151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011351917.8A Pending CN112413822A (en) | 2020-11-26 | 2020-11-26 | Low-temperature anti-freezing protection method and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112413822A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60240940A (en) * | 1984-05-15 | 1985-11-29 | Sharp Corp | Air conditioner |
| CN101131251A (en) * | 2006-08-24 | 2008-02-27 | 纪周 | Central air-conditioning room temperature intelligent control system and control method thereof |
| CN103322640A (en) * | 2012-03-19 | 2013-09-25 | 北京海林节能设备股份有限公司 | Air-conditioner energy saving control method, air-conditioner energy saving control system and air-conditioner switching system of comprehensive energy-saving building |
| CN104949265A (en) * | 2015-06-03 | 2015-09-30 | 广东美的暖通设备有限公司 | Air conditioner system and energy management method of air conditioner system |
| CN104949279A (en) * | 2015-06-26 | 2015-09-30 | 珠海格力电器股份有限公司 | Method for displaying and synchronizing Fahrenheit temperature and air conditioning system |
| 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 |
-
2020
- 2020-11-26 CN CN202011351917.8A patent/CN112413822A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60240940A (en) * | 1984-05-15 | 1985-11-29 | Sharp Corp | Air conditioner |
| CN101131251A (en) * | 2006-08-24 | 2008-02-27 | 纪周 | Central air-conditioning room temperature intelligent control system and control method thereof |
| CN103322640A (en) * | 2012-03-19 | 2013-09-25 | 北京海林节能设备股份有限公司 | Air-conditioner energy saving control method, air-conditioner energy saving control system and air-conditioner switching system of comprehensive energy-saving building |
| CN104949265A (en) * | 2015-06-03 | 2015-09-30 | 广东美的暖通设备有限公司 | Air conditioner system and energy management method of air conditioner system |
| CN104949279A (en) * | 2015-06-26 | 2015-09-30 | 珠海格力电器股份有限公司 | Method for displaying and synchronizing Fahrenheit temperature and air conditioning system |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10415842B2 (en) | Outdoor unit for air conditioner, air conditioner, and method for controlling air conditioner | |
| CN107062564B (en) | Control method of air conditioner, air conditioner and storage medium | |
| KR970006056B1 (en) | Control device for air conditioner | |
| CN107631447B (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| US20200149532A1 (en) | Air conditioner oil return control method, air conditioner and computer readable storage medium | |
| CN108644970B (en) | Method for automatically controlling air outlet of air conditioner | |
| CN104390311B (en) | Air conditioner refrigeration method, system and device aiming at high-temperature server | |
| CN108332351B (en) | Refrigeration control method and system | |
| CN104566645A (en) | Multi-slit air conditioner, air conditioner anti-freezing protection method and air conditioner anti-freezing protection system | |
| CN110388719B (en) | Central air conditioning unit and control method and device thereof | |
| CN110220269B (en) | Anti-freezing control method and system for fan coil and air conditioner | |
| CN104110747A (en) | Split-type air conditioner and starting control method and system of outdoor power source thereof | |
| CN111207485B (en) | Anti-freezing control method and device, storage medium and water multi-connected system | |
| CN108036472B (en) | Air conditioner dehumidification control system and air conditioner | |
| CN109883011B (en) | Refrigerant adjusting method and device and air conditioning system | |
| CN113623818B (en) | Heating mode fluorine deficiency detection method and device, air conditioner and computer readable storage medium | |
| CN107560100B (en) | The control method of air conditioner coolant not foot protection | |
| CN111503842B (en) | Control method, control device, control system and readable medium of multi-split air conditioner | |
| CN114322240A (en) | Air conditioner control method and device and air conditioner | |
| CN111121223B (en) | Fluorine-lacking protection method of air conditioner, air conditioner and storage medium | |
| CN112413822A (en) | Low-temperature anti-freezing protection method and air conditioning equipment | |
| CN107576030A (en) | The control method and air conditioner of air conditioner | |
| CN115046289A (en) | Control method and control device of multi-split air conditioning system and multi-split air conditioning system | |
| CN112378045B (en) | Low-temperature anti-freezing protection method and multi-connected air conditioning equipment | |
| CN110986283B (en) | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |
|
| RJ01 | Rejection of invention patent application after publication |