CN112128923B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN112128923B CN112128923B CN202010857989.3A CN202010857989A CN112128923B CN 112128923 B CN112128923 B CN 112128923B CN 202010857989 A CN202010857989 A CN 202010857989A CN 112128923 B CN112128923 B CN 112128923B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000009833 condensation Methods 0.000 claims abstract description 176
- 230000005494 condensation Effects 0.000 claims abstract description 176
- 238000007791 dehumidification Methods 0.000 claims description 31
- 230000007613 environmental effect Effects 0.000 claims description 28
- 230000015654 memory Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner and a control method thereof, wherein the control method comprises the following steps: acquiring outdoor temperature prediction information of the position of an air conditioner; determining the condensation condition required to be reached when the frost dew condensation event occurs in the indoor environment where the indoor unit of the air conditioner is according to the outdoor temperature prediction information; judging whether the indoor environment is about to reach a condensation condition; if yes, controlling the air conditioner to adjust the running state so as to prevent the indoor environment from generating frost condensation events. By using the method, the air conditioner can automatically prevent frost and dew condensation events, improves the intelligent degree, and is particularly suitable for landscape buildings with large glass doors and windows.
Description
Technical Field
The invention relates to an intelligent household appliance, in particular to an air conditioner and a control method thereof.
Background
In autumn and winter, the outdoor temperature of partial areas is low, which often causes frost condensation of glass windows or glass walls of buildings. When the frost and dew condensation event happens, the user sight can be shielded by the frost and the dew on the glass, inconvenience is brought to the user, the heat of the indoor environment can be additionally consumed in the defrosting process, the water dripping phenomenon can occur, and the user experience is poor.
Some household appliances of prior art can only be used for defrosting or removing dew after the frost dew event of condensing takes place, and can not prevent the frost dew event of condensing's emergence in advance, and intelligent degree is low, can not satisfy current user's demand yet.
Disclosure of Invention
An object of the present invention is to provide an air conditioner and a control method thereof which at least partially solve the above problems.
A further object of the present invention is to enable an air conditioner to prevent the occurrence of condensation of frost and dew, thereby increasing the degree of intelligence.
Another further object of the present invention is to provide an air conditioner that can prevent the occurrence of condensation and save energy.
According to an aspect of the present invention, there is provided a control method of an air conditioner, including: acquiring outdoor temperature prediction information of the position of an air conditioner; determining the condensation condition required to be reached when the frost dew condensation event occurs in the indoor environment where the indoor unit of the air conditioner is according to the outdoor temperature prediction information; judging whether the indoor environment is about to reach a condensation condition; if yes, controlling the air conditioner to adjust the running state so as to prevent the indoor environment from generating frost condensation events.
Optionally, the step of determining the condensation condition required for the frost and dew condensation event in the indoor environment according to the outdoor temperature prediction information comprises: judging whether an indoor environment where an indoor unit of the air conditioner is located is easy to generate a frost condensation event according to the outdoor temperature prediction information, wherein the frost condensation event comprises a frost condensation event and/or a condensation event; if yes, the condensation condition required to be reached when the frost dew condensation event occurs in the indoor environment is further determined according to the outdoor temperature prediction information.
Optionally, a corresponding relation of the outdoor environment temperature changing with time is recorded in the outdoor temperature prediction information; and the step of judging whether the indoor environment of the indoor unit of the air conditioner is easy to generate the frost condensation event according to the outdoor temperature prediction information comprises the following steps: judging whether all the outdoor environment temperatures recorded in the outdoor temperature prediction information are greater than or equal to a first set threshold value; if not, determining that the indoor environment is easy to generate frost condensation events.
Optionally, the condensation conditions include indoor environmental conditions and time conditions required for an indoor environment to experience a frost and dew condensation event; and the step of determining the condensation condition required to be reached by the frost and dew condensation event occurring in the indoor environment according to the outdoor temperature prediction information comprises the following steps: extracting outdoor environment temperature and corresponding time thereof which are less than a first set threshold value in the outdoor temperature prediction information, and respectively recording as risk temperature and risk time; determining indoor environmental conditions according to the risk temperature; the time condition is determined based on the risk time.
Optionally, the indoor environmental condition specifies an indoor environmental parameter threshold that is required to be reached by an indoor environment frost and dew condensation event, where the indoor environmental parameter threshold at least includes an indoor condensation humidity threshold; and the step of determining the indoor environmental condition from the at-risk temperature comprises: acquiring a preset temperature and humidity corresponding relation, wherein the temperature and humidity corresponding relation stipulates an indoor condensation humidity threshold value required to be reached by an indoor environment frost and dew condensation event corresponding to each risk temperature; and determining an indoor condensation humidity threshold according to the temperature and humidity corresponding relation.
Optionally, the indoor environmental condition specifies an indoor environmental parameter threshold that is required to be reached by the indoor environment for a frost and dew condensation event; and the step of determining whether the indoor environment is about to reach a condensation condition comprises: detecting indoor environment parameters of the indoor environment within a set time period before the time condition is reached, and judging whether the difference value between the indoor environment parameters and the indoor environment parameter threshold value is smaller than a second set threshold value or not; if so, determining that the indoor environment is about to reach a condensation condition.
Optionally, the step of controlling the air conditioner to adjust the operation state to prevent the indoor environment from frost condensation event comprises: acquiring temperature field information of the indoor environment, wherein the temperature field information contains the temperature and/or temperature change curve of each position in the indoor environment; determining target operation parameters of the air conditioner according to the temperature field information; and controlling the air conditioner to adjust the running state according to the target running parameters.
Optionally, the target operation parameter of the air conditioner includes a target air supply angle of an indoor unit of the air conditioner; and the step of determining the target operation parameter of the air conditioner according to the temperature field information includes: determining a condensation position where a frost and dew condensation event easily occurs in an indoor environment according to the temperature field information; and determining a target air supply angle of an indoor unit of the air conditioner according to the condensation position.
Optionally, the air conditioner has a plurality of dehumidification units respectively disposed in the indoor environment for consuming water vapor in the indoor environment; and controlling the air conditioner to adjust the operation state to prevent the indoor environment from generating a frost condensation event, comprising: and driving at least one dehumidification unit corresponding to the condensation position to start operation.
According to another aspect of the present invention, there is also provided an air conditioner including: a processor and a memory, wherein a control program is stored in the memory, and the control program is used for realizing the control method according to any one of the above items when being executed by the processor.
The air conditioner and the control method thereof can determine the condensation condition required by the frost dew condensation event in the indoor environment according to the outdoor temperature prediction information, and can prevent the frost dew condensation event in the indoor environment by controlling the air conditioner to adjust the running state under the condition that the indoor environment is about to reach the condensation condition. By using the method, the air conditioner can automatically prevent frost and dew condensation events, improves the intelligent degree, and is particularly suitable for landscape buildings with large glass doors and windows.
Further, the air conditioner and the control method thereof of the present invention have a plurality of dehumidification units respectively disposed in the indoor environment for consuming water vapor in the indoor environment. When the indoor environment is about to reach the condensation condition, the condensation position is determined according to the temperature field information, and then at least one dehumidification unit corresponding to the condensation position is driven to start to operate to carry out targeted dehumidification, so that the air conditioner can prevent frost and dew condensation events and save energy consumption.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of an air conditioner according to one embodiment of the present invention;
fig. 2 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic view of a control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is a control flowchart of an air conditioner according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic block diagram of an air conditioner 10 according to one embodiment of the present invention.
The air conditioner 10 may generally include, divided in an overall structure: air conditioning system 200, processor 410, and memory 420. The air conditioning system 200 may include a refrigeration system and may further include one or more of a humidity conditioning system, an odor elimination system, a purification system, and a sterilization system. The humidity control system may include a plurality of dehumidification units, each of which is provided in the indoor environment in which the indoor unit 110 of the air conditioner 10 is located, for consuming water vapor in the indoor environment.
The refrigeration system may be a compression refrigeration system. The air conditioner 10 may generally include, in terms of installation location division of components: indoor units 110 and outdoor units. The indoor unit 110 and the outdoor unit of the air conditioner 10 perform cooling and heating cycles of the air conditioner 10 by means of efficient cooperation, thereby achieving cooling and heating adjustment of the indoor temperature.
The refrigerating system can comprise a compressor, an outdoor heat exchanger and an indoor heat exchanger. The operating modes of the air conditioner 10 may include at least a heating mode. In the heating mode, the refrigerant is condensed while being radiated when passing through the heat exchanger of the indoor unit 110, and evaporated while being absorbed when passing through the heat exchanger of the outdoor unit. The refrigeration system may utilize the refrigerant to dissipate heat in the indoor unit 110 heat exchanger to provide heat to the ambient environment of the indoor unit 110.
Fig. 2 is a schematic view of an indoor unit 110 of the air conditioner 10 according to one embodiment of the present invention.
The indoor unit 110 of the present embodiment may be a vertical type, such as a square cabinet or a circular cabinet, or may be a wall-mounted type, but is not limited thereto. Fig. 2 is only an example of a wall-mounted air conditioner indoor unit 110, and those skilled in the art should be able to expand the present invention to other machine types, and are not shown one by one here.
The processor 410 and the memory may form a control device, which may be provided in the indoor unit. The memory 420 stores a control program 421, and the control program 421 is executed by the processor 410 to implement the control method of the air conditioner 10 according to any one of the following embodiments. The processor 410 may be a Central Processing Unit (CPU), or a digital processing unit (DSP), etc. The memory 420 is used to store programs executed by the processor 410. The memory 420 may be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. Memory 420 may also be a combination of various memories 420. Since the control program 421 is executed by the processor 410 to implement the processes of the method embodiments described below and achieve the same technical effects, the description thereof is omitted here for avoiding repetition.
In this embodiment, the air conditioner 10 may further include a humidity sensor disposed in the indoor environment for detecting the humidity of the indoor environment. The humidity sensor may be disposed on the indoor unit 110, for example, on a casing of the indoor unit 110, or may be separately and independently installed from the indoor unit 110, for example, may be disposed near a glass window, and the humidity value near the glass window may be obtained by collecting detection data of the humidity sensor.
In this embodiment, the air conditioner 10 may further include an information collecting device, which may include a temperature information collector, such as a temperature sensor, for obtaining temperature field information of an indoor environment where the indoor unit 110 of the air conditioner 10 is located. The temperature field information of the indoor environment refers to distribution information of temperature in space and time of the indoor environment, and reflects temperature distribution conditions of each position of the space of the indoor environment at each moment. The temperature sensor may be provided in plural numbers, respectively, at respective positions in the indoor environment. The temperature field information of the indoor environment can be acquired by acquiring the temperature values detected by the temperature sensors at different moments.
In other alternative embodiments, the air conditioner 10 may establish a data connection with an external temperature information collecting device to obtain the temperature field information of the indoor environment, which can reduce the manufacturing cost of the air conditioner 10.
Fig. 3 is a schematic diagram of a control method of the air conditioner 10 according to an embodiment of the present invention. The control method may generally include:
in step S302, outdoor temperature prediction information of the location of the air conditioner 10 is acquired.
The location of the air conditioner 10 may refer to a geographical administrative district, a county administrative district, or other administrative districts where the air conditioner 10 is located.
The step of acquiring the outdoor temperature prediction information of the location where the air conditioner 10 is located may include: an inquiry request is sent to a cloud platform in data connection with the air conditioner 10 to obtain outdoor temperature prediction information of the location of the air conditioner 10 corresponding to the location information of the air conditioner 10, the cloud platform may store real-time data of the outdoor temperature prediction information of the location corresponding to the location information of the air conditioner 10, and the cloud platform is configured with the location information of the air conditioner 10 in advance.
The location information of the air conditioner 10 may refer to longitude and latitude coordinate data of the air conditioner 10, for example, GPS positioning data, or BDS positioning data.
In this embodiment, according to the preset location information, the cloud platform may establish a data connection with the weather forecast application platform, and may receive the weather forecast data of the location of the air conditioner 10 corresponding to the location information in the weather forecast application platform at regular time, for example, the weather forecast data may be received every 10 minutes. The weather forecast data includes outdoor temperature prediction information of the location where the air conditioner 10 is located.
The outdoor temperature prediction information may refer to temperature prediction information in weather forecast data, that is, temperatures at respective times within a set time period in the future, for example, temperatures at respective integral points within 24h in the future. The set time period may be 24h, 48h, 12h, or the like.
In step S304, the condensing conditions required for the indoor environment where the indoor unit 110 of the air conditioner 10 is located to generate the frost condensation event are determined according to the outdoor temperature prediction information. When the indoor environment reaches a condensation condition, a condensation phenomenon and/or a condensation phenomenon may occur at a condensation position in the indoor environment. The condensation position in the indoor environment refers to a position in the indoor environment where the temperature difference from the outdoor environment of the outdoor unit is small, such as a glass window. The temperature of the glass window may be close to the outdoor ambient temperature, and when the outdoor ambient temperature is low and the indoor ambient humidity is high, the glass window may generate a frost condensation phenomenon and/or a condensation phenomenon.
The corresponding relation of the outdoor environment temperature changing along with the time is recorded in the outdoor temperature prediction information. And the step of determining the condensation condition required to reach for the frost and dew condensation event of the indoor environment according to the outdoor temperature prediction information may include: and judging whether the indoor environment where the indoor unit 110 of the air conditioner 10 is located is easy to generate a frost condensation event according to the outdoor temperature prediction information, wherein the frost condensation event comprises a frost condensation event and/or a condensation event, and if so, determining a condensation condition required to be reached when the indoor environment generates the frost condensation event according to the outdoor temperature prediction information. The indoor environment is easy to generate frost condensation events, which means that the indoor environment is at risk of generating the frost condensation events, and when the outdoor environment temperature is low, for example, when the outdoor environment is lower than 0 ℃, the indoor environment is easy to generate the frost condensation events.
The step of determining whether the indoor environment where the indoor unit 110 of the air conditioner 10 is located is prone to frost condensation event according to the outdoor temperature prediction information may include: and judging whether all the outdoor environment temperatures recorded in the outdoor temperature prediction information are greater than or equal to a first set threshold value, if not, determining that the indoor environment is easy to generate a frost condensation event, and if so, determining that the indoor environment is not easy to generate the frost condensation event.
The first set threshold may be preset according to actual needs, and may be, for example, 0 ℃, or may be any value within a range of-10 ℃ to 0 ℃, or may be any value within a range of 0 ℃ to 5 ℃.
By analyzing the outdoor temperature prediction information, when the outdoor ambient temperature in the outdoor temperature prediction information is lower than the first set threshold, the condensation condition required to be reached when the frost and dew condensation event occurs in the indoor environment is further determined according to the outdoor temperature prediction information, so that the operation state of the air conditioner 10 is adjusted in time, the indoor environment cannot reach the condensation condition, and the frost and dew condensation event occurring in the indoor environment can be reduced or avoided.
In this embodiment, the condensation conditions may include indoor environmental conditions and time conditions required for the indoor environment to be subjected to a frost condensation event.
The indoor environmental condition specifies an indoor environmental parameter threshold value which is required to be reached by an indoor environment frost and dew condensation event, and the indoor environmental parameter threshold value at least comprises an indoor condensation humidity threshold value. The indoor condensation humidity threshold refers to the humidity required to be reached when the outdoor environment temperature reaches the risk temperature and the indoor environment has a frost and dew condensation event. In some optional embodiments, the indoor environmental parameter threshold may further include an indoor condensation temperature threshold.
And determining the time condition required by the indoor environment to generate the frost condensation event, and determining the time of the frost condensation event so as to take measures in advance to prevent the frost condensation event.
The step of determining the condensation condition required for the frost and dew condensation event in the indoor environment according to the outdoor temperature prediction information may include: and extracting the outdoor environment temperature and the corresponding time thereof which are less than a first set threshold value in the outdoor temperature prediction information, recording the outdoor environment temperature and the corresponding time as risk temperature and risk time respectively, determining the indoor environment condition according to the risk temperature, and determining the time condition according to the risk time. During the risk time, the outdoor ambient temperature will reach the risk temperature and the indoor environment is prone to frost condensation.
The step of determining the indoor environmental condition from the at-risk temperature may comprise: acquiring a preset temperature and humidity corresponding relation, wherein the temperature and humidity corresponding relation specifies an indoor condensation humidity threshold value required to be reached by the frost and dew condensation event of the indoor environment corresponding to each risk temperature, and determining the indoor condensation humidity threshold value according to the temperature and humidity corresponding relation. And determining the lowest humidity value required to be reached when the frost and dew condensation event occurs in the indoor environment at different risk temperatures, and obtaining the temperature and humidity corresponding relation.
In the step of determining the time condition based on the risk time, the risk time may be directly used as the time condition. For example, if the corresponding time of the outdoor environment temperature smaller than the first set threshold in the outdoor temperature prediction information is 3:00am to 5:00am, the risk time is 3:00am to 5:00 am.
Step S306, determine whether the indoor environment is about to reach the condensation condition. For example, before the time condition is reached, whether the indoor environment reaches the indoor environment condition may be determined according to various parameters of the indoor environment, so as to determine whether the indoor environment is about to reach the condensation condition.
The indoor environmental conditions specify indoor environmental parameter thresholds to be met by the indoor environment for a frost and dew condensation event. And the step of determining whether the indoor environment is about to reach a condensation condition may include: detecting the indoor environment parameters of the indoor environment in a set time period before the time condition is reached, judging whether the difference value between the indoor environment parameters and the indoor environment parameter threshold value is smaller than a second set threshold value, if so, determining that the indoor environment is about to reach the condensation condition, and if not, determining that the indoor environment is not about to reach the condensation condition. The set time period may be any value within the range of 0.1h to 1 h. The indoor environment parameter may at least include an indoor environment humidity, and accordingly, the indoor environment parameter threshold may at least include an indoor environment humidity threshold, a difference value between the indoor environment parameter and the indoor environment parameter threshold refers to an absolute value of a difference between the indoor environment humidity and the indoor environment humidity threshold, and the second set threshold may be set according to an actual situation, for example, may be any value within a range of 1% to 10%. For example, the air conditioner 10 may drive a humidity sensor to detect a real-time value of the indoor ambient humidity.
In step S308, if the indoor environment is about to reach the condensation condition, the air conditioner 10 is controlled to adjust the operation state to prevent the indoor environment from generating the frost condensation event. In the case where the indoor environment is about to reach the condensing condition, the frost and dew condensation event can be prevented from occurring in the indoor environment by controlling the air conditioner 10 to adjust the operation state. By using the above method, the air conditioner 10 of the present embodiment can automatically prevent the occurrence of the condensation event of the frost and dew, and the degree of intelligence is improved.
The step of controlling the air conditioner 10 to adjust the operation state to prevent the frost condensation event from occurring in the indoor environment may include: acquiring temperature field information of the indoor environment, wherein the temperature field information contains the temperature and/or temperature change curve of each position in the indoor environment, determining target operation parameters of the air conditioner 10 according to the temperature field information, and controlling the air conditioner 10 to adjust the operation state according to the target operation parameters. The temperature change curve of each position in the indoor environment refers to a curve of the temperature of each position in the indoor environment changing along with time.
The target operation parameter of the air conditioner 10 may include a target blowing angle of the indoor unit 110 of the air conditioner 10. And the step of determining the target operation parameter of the air conditioner 10 according to the temperature field information includes: the condensation position where the frost, dew and condensation are likely to occur in the indoor environment is determined from the temperature field information, and the target air supply angle of the indoor unit 110 of the air conditioner 10 is determined from the condensation position. For example, the temperature field information may be real-time temperatures of respective locations in an indoor environment, a location in the temperature field information where the real-time temperature is lower than a third set threshold may be a condensation location, and the third set threshold may be any value less than 5 ℃. Generally, the real-time temperature of the glass window is low, and if the real-time temperature of the glass window is detected to be smaller than a third set threshold value, the position of the glass window is recorded as a condensation position.
The condensation position may be a coordinate, and the offset angle of the condensation position with respect to the indoor unit 110 may be directly calculated according to the coordinate of the condensation position. The offset angle is a vector sum of a deviation angle of the condensation position from the indoor unit 110 in the horizontal direction and a deviation angle of the condensation position from the indoor unit 110 in the vertical direction. After the offset angle is determined, the target air supply angle of the indoor unit 110 may be directly determined according to the offset angle, and then the air supply component (for example, the swing blade or the air deflector 111) of the indoor unit 110 is controlled to rotate to a position corresponding to the target air supply angle. After the target air supply angle is determined, the indoor unit 110 of the air conditioner 10 may be driven to enter the heating mode at the target air supply angle to blow the supply air flow toward the condensation position so that the condensation position is surrounded by the warm air flow, which may increase the temperature at the condensation position appropriately, thereby preventing the condensation position from a frost condensation event.
The air speed and volume of the supply airflow and the operating temperature in the heating mode may be preset according to the size of the space in the indoor environment in which the indoor unit 110 of the air conditioner 10 is located, the distance from the glass window, and the like.
In other alternative embodiments, the air conditioner 10 may further include a plurality of dehumidification units, each disposed in the indoor environment for consuming water vapor in the indoor environment. Each dehumidification unit is correspondingly provided with a dehumidification position, and each dehumidification position is correspondingly provided with a dehumidification working range. The union of the dehumidification operation ranges of the plurality of dehumidification units can form the space of the whole indoor environment. The dehumidification unit at the dehumidification position can dehumidify the indoor environment within the corresponding dehumidification working range.
The step of controlling the air conditioner 10 to adjust the operation state to prevent the frost condensation event in the indoor environment may further include: and driving at least one dehumidification unit corresponding to the condensation position to start operation. For example, the corresponding dehumidification location may be determined according to the condensation location, and then at least one dehumidification unit corresponding to the dehumidification location may be driven to start operation. If the condensation position coincides with the dehumidification position of a certain dehumidification unit, the condensation position is directly taken as the dehumidification position, and if the condensation position does not coincide with the dehumidification position of any dehumidification unit, the dehumidification position closest to the condensation position is taken as the dehumidification position corresponding to the condensation position.
By using the above method, the air conditioner 10 of the embodiment can drive the corresponding dehumidification unit to start operation according to the condensation position, so as to purposefully and quickly create a suitable humidity atmosphere around the condensation position, improve the dehumidification effect around the condensation position, and save energy consumption, and a good anti-frost and anti-dew effect can be obtained only by dehumidifying a specified area in the indoor environment.
Fig. 4 is a control flowchart of the air conditioner 10 according to one embodiment of the present invention.
In step S402, outdoor temperature prediction information of the location where the air conditioner 10 is located is acquired.
Step S404 determines whether all of the outdoor ambient temperatures recorded in the outdoor temperature prediction information are greater than or equal to a first set threshold, if not, step S406 is executed, and if so, step S402 is executed.
Step S406, determining that the indoor environment is easy to generate a frost condensation event.
Step S408, the outdoor ambient temperature and the corresponding time thereof that are less than the first set threshold in the outdoor temperature prediction information are extracted and recorded as the risk temperature and the risk time, respectively. The indoor environmental condition specifies an indoor environmental parameter threshold value which is required to be reached by the frost and dew condensation event of the indoor environment, and the indoor environmental parameter threshold value at least comprises an indoor condensation humidity threshold value.
And S410, acquiring a preset temperature and humidity corresponding relation. The temperature and humidity corresponding relation stipulates an indoor condensation humidity threshold value required to be reached when the frost and dew condensation event occurs in the indoor environment corresponding to each risk temperature.
Step S412, determining an indoor condensation humidity threshold according to the temperature and humidity corresponding relation.
And step S414, determining a time condition according to the risk time.
In step S416, the indoor environment parameter of the indoor environment is detected within a set time period before the time condition is reached. The indoor environmental parameter may include an indoor ambient humidity.
Step S418 is to determine whether the difference between the indoor ambient humidity and the indoor ambient humidity threshold is smaller than a second predetermined threshold, if yes, step S420 is executed, and if no, step S402 is executed.
In step S420, it is determined that the indoor environment is about to reach a condensation condition.
Step S422, temperature field information of the indoor environment is acquired. The temperature field information includes temperatures and/or temperature change curves of various positions in the indoor environment.
In step S424, a condensation position where a frost and dew condensation event is likely to occur in the indoor environment is determined according to the temperature field information.
In step S426, the target air blowing angle of the indoor unit 110 of the air conditioner 10 is determined according to the condensation position.
In step S428, the air conditioner 10 is controlled to adjust the operation state according to the target blowing angle, and the at least one dehumidifying unit corresponding to the condensing position is driven to start operation.
The air conditioner 10 and the control method thereof according to the present embodiment can determine the condensation condition required for the condensation event of the frost and dew in the indoor environment according to the outdoor temperature prediction information, and can prevent the condensation event of the frost and dew in the indoor environment by controlling the air conditioner 10 to adjust the operation state when the indoor environment is about to reach the condensation condition. By using the above method, the air conditioner 10 of the embodiment can automatically prevent the frost and dew condensation, improve the intelligence degree, and is particularly suitable for landscape buildings with large glass doors and windows.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A control method of an air conditioner, comprising:
acquiring outdoor temperature prediction information of the position of the air conditioner;
determining the condensation condition required to be reached when the indoor environment where the indoor unit of the air conditioner is located generates a frost and dew condensation event according to the outdoor temperature prediction information; the condensation condition comprises an indoor environmental condition and a time condition which are required to be reached by the frost and dew condensation event of the indoor environment, the indoor environmental condition specifies an indoor environmental parameter threshold which is required to be reached by the frost and dew condensation event of the indoor environment, and the time condition is used for determining the occurrence time of the frost and dew condensation event;
determining whether the indoor environment is about to reach the condensing condition;
and if so, controlling the air conditioner to adjust the running state so as to prevent the indoor environment from generating frost condensation events.
2. The control method according to claim 1, wherein,
the step of determining the condensation condition required to reach for the frost and dew condensation event in the indoor environment according to the outdoor temperature prediction information comprises the following steps:
judging whether a frost condensation event is easy to occur in an indoor environment where an indoor unit of the air conditioner is located according to the outdoor temperature prediction information, wherein the frost condensation event comprises a frost condensation event and/or a condensation event;
if yes, the condensation condition required to be reached when the frost and dew condensation event happens in the indoor environment is further determined according to the outdoor temperature prediction information.
3. The control method according to claim 2, wherein,
the corresponding relation of the outdoor environment temperature changing along with the time is recorded in the outdoor temperature prediction information; and is provided with
The step of judging whether the indoor environment where the indoor unit of the air conditioner is located is easy to generate the frost condensation event according to the outdoor temperature prediction information comprises the following steps:
judging whether all the outdoor environment temperatures recorded in the outdoor temperature prediction information are greater than or equal to a first set threshold value;
and if not, determining that the indoor environment is easy to generate a frost condensation event.
4. The control method according to claim 3,
the step of determining the condensation condition required to reach for the frost and dew condensation event in the indoor environment according to the outdoor temperature prediction information comprises the following steps:
extracting the outdoor environment temperature and the corresponding time thereof which are less than the first set threshold in the outdoor temperature prediction information, and respectively recording as a risk temperature and a risk time;
determining the indoor environmental condition according to the risk temperature;
determining the time condition based on the risk time.
5. The control method according to claim 4, wherein,
the indoor environmental parameter threshold comprises at least an indoor condensation humidity threshold; and is provided with
The step of determining the indoor environmental condition from the at-risk temperature comprises:
acquiring a preset temperature and humidity corresponding relation, wherein the temperature and humidity corresponding relation stipulates an indoor condensation humidity threshold value which is required to be reached by the frost and dew condensation event of the indoor environment corresponding to each risk temperature;
and determining the indoor condensation humidity threshold according to the temperature and humidity corresponding relation.
6. The control method according to claim 4,
the indoor environmental condition specifies an indoor environmental parameter threshold value which is required to be reached by the frost and dew condensation event of the indoor environment; and is
The step of determining whether the indoor environment is about to reach the condensing condition includes:
detecting an indoor environment parameter of the indoor environment within a set time period before the time condition is reached, and judging whether a difference value between the indoor environment parameter and the indoor environment parameter threshold value is smaller than a second set threshold value;
if so, determining that the indoor environment is about to reach the condensation condition.
7. The control method according to claim 1,
the step of controlling the air conditioner to adjust the operation state to prevent the indoor environment from frost condensation event comprises:
acquiring temperature field information of the indoor environment, wherein the temperature field information contains the temperature and/or temperature change curve of each position in the indoor environment;
determining target operation parameters of the air conditioner according to the temperature field information;
and controlling the air conditioner to adjust the running state according to the target running parameters.
8. The control method according to claim 7,
the target operation parameters of the air conditioner comprise a target air supply angle of an indoor unit of the air conditioner; and is provided with
The step of determining the target operating parameter of the air conditioner according to the temperature field information includes:
determining a condensation position where a frost and dew condensation event is easy to occur in the indoor environment according to the temperature field information;
and determining a target air supply angle of an indoor unit of the air conditioner according to the condensation position.
9. The control method according to claim 8,
the air conditioner is provided with a plurality of dehumidification units which are respectively arranged in the indoor environment and used for consuming water vapor in the indoor environment; and is
The step of controlling the air conditioner to adjust the operation state to prevent the indoor environment from frost condensation includes:
and driving at least one dehumidification unit corresponding to the condensation position to start operation.
10. An air conditioner comprising:
a processor and a memory, the memory having stored therein a control program for implementing the control method according to any one of claims 1-9 when executed by the processor.
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| CN202010857989.3A CN112128923B (en) | 2020-08-24 | 2020-08-24 | Air conditioner and control method thereof |
| PCT/CN2021/077080 WO2021223489A1 (en) | 2020-08-24 | 2021-02-20 | Air conditioner and control method therefor |
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| CN112762592B (en) * | 2021-01-05 | 2022-04-19 | 青岛海尔空调器有限总公司 | Window condensation prevention air conditioner and window condensation prevention control method |
| CN114234373B (en) * | 2021-12-16 | 2022-12-13 | 珠海格力电器股份有限公司 | Control method and device of fresh air environmental control unit and fresh air environmental control unit |
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| JP3622657B2 (en) * | 2000-09-18 | 2005-02-23 | 株式会社日立製作所 | Air conditioning control system |
| CN104251531B (en) * | 2013-06-26 | 2017-09-29 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| US9629204B2 (en) * | 2014-03-21 | 2017-04-18 | Teledyne Instruments, Inc. | Detection and correction of window moisture condensation |
| CN104091213B (en) * | 2014-07-15 | 2017-08-22 | 深圳先进技术研究院 | Floor surface temperature predicting method and system |
| CN105716208B (en) * | 2016-04-05 | 2019-06-28 | 广东美的制冷设备有限公司 | The operation control method and device of air conditioner |
| CN106556114B (en) * | 2016-11-29 | 2019-06-28 | 美的集团武汉制冷设备有限公司 | The humidity control method of air conditioner, humidification control device and its air conditioner |
| CN106931574A (en) * | 2017-04-21 | 2017-07-07 | 深圳市德赛工业研究院有限公司 | Anti-condensation system and method in intelligent building room |
| CN107289693A (en) * | 2017-07-11 | 2017-10-24 | 上海理工大学 | A kind of Defrost method |
| CN109323391B (en) * | 2018-09-20 | 2021-02-26 | 广东美的制冷设备有限公司 | Control method and control device of air conditioner for returning south to south and air conditioner |
| CN111516644B (en) * | 2019-02-03 | 2024-03-01 | 宝马股份公司 | Defogging method and defogging system, vehicle, storage medium and electronic device |
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