CN112880130B - Air conditioner control method and device and electronic equipment - Google Patents
Air conditioner control method and device and electronic equipment Download PDFInfo
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- 238000010257 thawing Methods 0.000 claims abstract description 63
- 238000004378 air conditioning Methods 0.000 claims abstract description 19
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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
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The application provides an air conditioner control method, an air conditioner control device and electronic equipment, wherein the method comprises the following steps: acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer tube temperature; calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity; calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner; accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain an accumulated frosting degree, wherein the first frosting degree is obtained based on the difference value and preset time length; and when the accumulated frosting degree is greater than the preset frosting degree, controlling the air conditioner to enter a defrosting mode. In the heating operation process of the air conditioner, the air conditioner is operated in real time in the dynamic frosting process of the air conditioner, and the frosting condition of the air conditioner is judged, so that when the air conditioner frost has small influence on the operation of the air conditioner, the defrosting control is carried out. Therefore, accurate frosting and defrosting are realized, and the efficient operation of heating of the air conditioning unit can be ensured.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to an air conditioner control method, an air conditioner control device and electronic equipment.
Background
The existing air conditioner adopts a heat pump type air conditioner, and provides heat for the indoor in cold seasons. After the air conditioner operates for a period of time, the heat exchanger of the outdoor unit often frosts, the heat exchange efficiency of the air conditioner is affected, the thickness of a frost layer even covers the outdoor unit in severe weather, the comfort of a user using the air conditioner is seriously affected, and the problem is generally solved by defrosting of the air conditioner.
The purpose of defrosting control is defrosting on demand, namely defrosting is started or stopped in time according to the growth condition of a frost layer on the surface of a heat exchanger, because defrosting is carried out too early or too late, which causes the increase of system energy consumption and the reduction of the performance of an air source heat pump system.
The existing defrosting control method is generally a time-temperature method, namely, the temperature of the outer tube in different sections is set to reach the set frosting temperature in different sections among different outer ring temperatures, and the outer tube is defrosted after the set running time. However, the prior art cannot control the time point of entering the defrosting according to the real-time change of the working condition environment, and is not intelligent enough; the defrosting is easy to occur without frost or frequently, which easily causes insufficient defrosting or excessive defrosting and increases energy consumption.
Therefore, how to perform air conditioner defrosting more accurately becomes a technical problem to be solved urgently.
Disclosure of Invention
The application provides an air conditioner control method, an air conditioner control device and electronic equipment, and aims to at least solve the technical problem of how to accurately defrost an air conditioner in the related art.
According to an aspect of an embodiment of the present application, there is provided an air conditioner control method including: acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer tube temperature; calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity; calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner; accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain an accumulated frosting degree, wherein the first frosting degree is obtained based on the difference value and the preset time length; and when the accumulated frosting degree is greater than the preset frosting degree, controlling the air conditioner to enter a defrosting mode.
Optionally, accumulating the first frost degree corresponding to the temperature difference value larger than the preset value to obtain an accumulated frost degree includes: judging whether the temperature difference value is larger than a first preset value or not; when the temperature difference is larger than the first preset value, calculating the frosting degree within a preset time length as the first frosting degree under the current temperature difference; and accumulating the first frosting degrees in a plurality of preset time lengths corresponding to the temperature difference values larger than the first preset value according to a time sequence to obtain the accumulated frosting degrees.
Optionally, before the adding the first frost degree corresponding to the temperature difference value greater than the preset value, the method includes: judging whether the real-time dew point temperature is smaller than a second preset value or not; when the real-time dew point temperature is smaller than a second preset value, judging whether the temperature difference value is larger than a first preset value or not; and when the temperature difference is larger than the first preset value, accumulating the first frosting degree corresponding to the temperature difference larger than the preset value.
Optionally, when the accumulated frosting degree is smaller than a preset frosting degree, counting an accumulated time length of the temperature difference value larger than the first preset value; and when the accumulated time length is longer than the preset accumulated time length, controlling the air conditioner to enter a defrosting mode.
Optionally, the preset accumulation period is determined based on the outdoor ambient temperature and the relative humidity.
Optionally, the preset frosting degree is determined based on the preset time and an outdoor environment factor, and the outdoor environment factor is determined based on the outdoor environment temperature and the relative humidity.
Optionally, the air conditioner control method further includes: acquiring the interval duration from the start of defrosting to the end of defrosting; when the interval duration is in a first preset interval, keeping the preset frosting degree unchanged; when the interval length is in a second preset interval, reducing the preset frosting degree; and when the interval duration is in a third preset interval, increasing the preset frosting degree, wherein the minimum value of the second preset interval is greater than or equal to the maximum value of the first preset interval, and the maximum value of the third preset interval is less than or equal to the minimum value of the first preset interval.
According to still another aspect of an embodiment of the present application, there is also provided an air conditioning control apparatus including: the acquisition module is used for acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer pipe temperature; a first calculation module for calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity; the second calculation module is used for calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner; the accumulation module is used for accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain the accumulated frosting degree, and the first frosting degree is obtained based on the difference value and the preset time length; and the control module is used for controlling the air conditioner to enter a defrosting mode when the accumulated frosting degree is greater than a preset frosting degree.
According to another aspect of the embodiments of the present application, there is also provided an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory communicate with each other through the communication bus; wherein the memory is used for storing the computer program; a processor for performing the method steps in any of the above embodiments by running the computer program stored on the memory.
According to a further aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to perform the method steps of any of the above embodiments when the computer program is executed.
In the embodiment of the application, in the heating operation process of the air conditioner, the outdoor temperature, the outdoor relative humidity and the appearance temperature of the air conditioner are obtained in real time, the dew point temperature is calculated based on the outdoor temperature and the outdoor relative humidity, the dew point temperature is compared with the temperature of an outer pipe of the air conditioner, the difference values meeting the conditions are accumulated to obtain the frosting degree of the air conditioner, when the frosting degree of the air conditioner meets the preset conditions, the air conditioner is judged to enter defrosting control, in the dynamic frosting process of the air conditioner, real-time operation is carried out, the frosting condition of the air conditioner is judged, and therefore when the frosting layer thickness of the air conditioner has small influence on the operation of the air conditioner, defrosting control is carried out. Therefore, accurate frosting and defrosting are realized, and the efficient operation of heating of the air conditioning unit can be ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
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 described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a hardware environment of an alternative air conditioner control method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating an alternative air conditioning control method according to an embodiment of the present application;
fig. 3 is a block diagram illustrating an alternative air conditioning control apparatus according to an embodiment of the present application;
fig. 4 is a block diagram of an alternative electronic device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an aspect of an embodiment of the present application, there is provided an air conditioner control method. Alternatively, in the present embodiment, the air conditioner control method described above may be applied to a hardware environment as shown in fig. 1. As shown in figure 1 of the drawings, in which,
according to an aspect of an embodiment of the present application, there is provided an air conditioner control method. Alternatively, in the present embodiment, the air-conditioning control method described above may be applied to a hardware environment constituted by the terminal 102 and the server 104 as shown in fig. 1. As shown in fig. 1, the server 104 is connected to the terminal 102 through a network, which may be used to provide services for the terminal or a client installed on the terminal, may be provided with a database on the server or independent from the server, may be used to provide data storage services for the server 104, and may also be used to handle cloud services, and the network includes but is not limited to: the terminal 102 is not limited to a PC, a mobile phone, a tablet computer, etc. the terminal may be a wide area network, a metropolitan area network, or a local area network. The air conditioner control method in the embodiment of the present application may be executed by the server 104, may be executed by the terminal 102, or may be executed by both the server 104 and the terminal 102. The terminal 102 may execute the air conditioner control method according to the embodiment of the present application by a client installed thereon.
Taking the terminal 102 and/or the server 104 to execute the air conditioning control method in this embodiment as an example, fig. 2 is a schematic flowchart of an optional air conditioning control method according to an embodiment of the present application, and as shown in fig. 2, the flowchart of the method may include the following steps:
step S202, acquiring outdoor environment temperature, relative humidity and air conditioner outer tube temperature;
step S204, calculating real-time dew point temperature based on the outdoor environment temperature and the relative humidity;
step S206, calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner;
step S208, accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain an accumulated frosting degree, wherein the first frosting degree is obtained based on the difference value and the preset time length;
and step S210, controlling the air conditioner to enter a defrosting mode when the accumulated frosting degree is greater than a preset frosting degree.
Through the steps S202 to S210, in the air conditioner heating operation process, the outdoor temperature, the outdoor relative humidity and the air conditioner appearance temperature are obtained in real time, the dew point temperature is calculated based on the outdoor temperature and the outdoor relative humidity, the dew point temperature is compared with the air conditioner outer tube temperature, the difference values meeting the conditions are accumulated to obtain the air conditioner frosting degree, when the air conditioner frosting degree meets the preset conditions, the air conditioner is judged to enter defrosting control, in the air conditioner frosting dynamic process, the real-time operation is performed, the frosting condition of the air conditioner is judged, and therefore the air conditioner is subjected to defrosting control when the air conditioner frosting layer is thick. Therefore, the defrosting is accurately realized, the defrosting control is not performed when no frost exists, the defrosting process is performed after the frosting is ensured to a certain degree, and the heating efficient operation of the air conditioning unit can be ensured.
For the technical solution in step S202, the outdoor unit air temperature and the outdoor side relative humidity can be detected in real time, in this embodiment, the detection can be performed by the temperature and humidity sensor of the outdoor unit, and the third-party weather data collected by the APP associated with the air conditioner can also be used. For example by acquiring meteorological data at a meteorological station. In this embodiment, the air conditioner is a heat pump type air conditioner, and supplies heat to the room in cold seasons. The heat exchange is carried out through the air conditioner outer pipe, after the air conditioner runs for a period of time, the surface of the heat exchanger of the outdoor unit is prone to frosting, the surface temperature of the heat exchanger can be approximately regarded as the evaporation temperature of a refrigerant, namely the temperature of a coil of the outdoor unit, the temperature of the air conditioner outer pipe is called as the temperature of the air conditioner outer pipe for short, and therefore the temperature value of the air conditioner outer pipe can be obtained through the temperature sensor in real time.
For the technical solution in step S204, the real-time dew point temperature is calculated based on the outdoor environment temperature and the relative humidity, and the evaporation temperature of the air conditioner and the dew point temperature of the outdoor air jointly determine the difficulty of frosting and the actual frosting condition. When the air pressure is kept constant with the water vapor content in the air unchanged, the temperature at which the air is cooled to saturation is called the dew point temperature, and usually 0 ℃ or higher is called the "dew point" and 0 ℃ is called the "frost point" hereinafter. The embodiment is used for air conditioner defrosting control, so the dew point temperature is usually a subzero temperature value. As an exemplary embodiment, the dew point temperature value of the air may be calculated from the following equation according to the relative humidity and the temperature value.
LogEW＝(0.66077+7.5*T/(237.3+T)+(log10(RH)－2)
From the formula, Td ((0.66077-logEw) × 237.3)/(logEw-8.16077), it can be seen that the dew point value is mainly related to the relative humidity and temperature, and is changed by the changes of them. The unit of the outdoor temperature T and the dew point temperature Td is centigrade, the relative humidity RH is percentage, and the Ew is the liquid level saturated vapor pressure corresponding to the temperature T.
And for the technical scheme in the step S206, calculating the temperature difference between the real-time dew point temperature and the temperature of the air conditioner outer pipe. As an exemplary embodiment, the temperature and humidity of the outdoor environment have a great influence on the frosting amount of the heat pump air conditioner. The outdoor heat exchanger surface temperature and the dew point temperature of the air blown over the heat exchanger surface together determine the frosting condition. When the surface temperature of the heat exchanger is lower than zero and the dew point temperature of air, frost formation can occur. When the air conditioning product is operated for heating, the larger the difference between the surface temperature and the dew point temperature of the heat exchanger is, the higher the frosting speed is. The heat exchanger surface temperature can be approximately regarded as the refrigerant evaporation temperature (air conditioner outer tube temperature). The evaporation temperature of the air conditioner and the dew point temperature of the outdoor air jointly determine the difficulty degree of frosting and the actual frosting condition. Therefore, the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner can be calculated to serve as the basis of the frosting amount, and therefore whether the real-time dew point temperature is smaller than a second preset value or not is judged; when the real-time dew point temperature is smaller than a second preset value, judging whether the temperature difference value is larger than a first preset value or not; and when the temperature difference is larger than the first preset value, accumulating the first frosting degree corresponding to the temperature difference larger than the preset value. For example, it is determined whether the dew-point temperature Td satisfies the condition that Td is less than or equal to 0 ℃, and if yes, the dew-point temperature Td is compared with the real-time outer tube temperature Te, and the temperature difference Δ T is Td-Te, when Δ T is greater than a first preset value, frost may be formed on the outer tube of the outdoor unit or the surface of the heat exchanger, for example, if Δ T is Td-Te is greater than or equal to 0 ℃, the outer tube temperature of the outdoor unit is lower than the dew-point temperature, and Td is lower than 0 ℃. Indicating that in this case, frosting occurs.
For the technical scheme in step S208, when the temperature difference Δ T is greater than the first preset value, accumulating the first frosting degree corresponding to the temperature difference greater than the first preset value to obtain an accumulated frosting degree, where the first frosting degree is obtained based on the difference and the preset time length. As an exemplary embodiment, in the present embodiment, the frosting degree may be a thickness of frosting, an area of frosting, and other characteristics, that is, a size for representing the frosting amount or a difficulty level of removing frosting. When the temperature difference value meets the condition, namely is larger than a first preset value, the frosting degree in the preset time length is accumulated once every preset time length, the frosting degree in the preset time length is determined based on different working conditions, and in particular, the frosting can occur in about 50-80 min in common frosting weather.
As an exemplary embodiment, there is a prior art that the temperature difference Δ T is averaged, the defrosting mode is determined based on the average value of the temperature difference Δ T, and the average value of the temperature difference over a period of time is used as an index of the frost formation degree to weaken the influence of the variation range of the temperature difference. For example, if the air conditioner frosts more and the temperature difference Δ T becomes larger due to weather reasons at a certain moment in the heating operation of the air conditioner, the average value will increase, and if Δ T is decreased due to weather changes or operation changes of the air conditioning system, the new average value will show a gradually decreasing trend. While the actual frost thickness is continuously increasing. The calculated frosting degree is inaccurate, so that the thickness condition of a frost layer cannot be effectively indicated, and the frosting degree is accumulated to control the defrosting of the air conditioner, so that the condition of the frosting degree can be reflected in real time, and the defrosting can be more accurately performed.
As an exemplary embodiment, the preset time Δ t generally has a value range as follows: delta t is more than or equal to 30s and less than or equal to 600s, the time interval is too short, and the controller has more execution operation data; the time interval is too long to feed back the frosting condition in time. Therefore, the first frost degree corresponding to the temperature difference value larger than the preset value needs to be accumulated to obtain an accumulated frost degree, and whether defrosting is needed or not is determined based on the accumulated frost degree, for example, the accumulated frost degree may be: judging whether the temperature difference value is larger than a first preset value or not; when the temperature difference is larger than the first preset value, calculating the frosting degree within a preset time length as the first frosting degree under the current temperature difference; and accumulating the first frosting degrees in a plurality of preset time lengths corresponding to the temperature difference values larger than the first preset value according to a time sequence to obtain the accumulated frosting degrees.
In the present embodiment, the preset time Δ t may take 60S as an example. And when the accumulated frosting degree is greater than the preset frosting degree, controlling the air conditioner to enter a defrosting mode. Specifically, the preset duration is a fixed value, the preset frosting degree is the same value, under different frosting working conditions, the time for reaching the value is different, the frosting working condition is easy to occur, the frosting working condition is reached earlier, the defrosting is started earlier, the frosting working condition is not easy to occur, and the defrosting is started later when the frosting working condition is reached later. The defrosting can be realized at proper time under all working conditions. The preset frosting degree is determined based on the preset time length and an outdoor environment factor, and the outdoor environment factor is determined based on the outdoor environment temperature and the relative humidity.
In order to enable the preset frosting degree fixed value to have strong adaptability.
Presetting the frosting degree based on a preset time delta t, and influenced by a coefficient xi; specifically, the preset time duration Δ t is different, and the accumulated frost degree accumulation result is also different, for example, when the air conditioner reaches a severe frost degree in the 60 th min, the FD value is different between the time when the sampling Δ t is 30S and the time when the sampling Δ t is 60S, and thus the FD preset value is different.
More recently, the coefficient ξ may be preset according to different outdoor environment dimensions and relative humidity, specifically, see table 1, where ξ FD preset value ξ FD standard value × Δ t standard value/Δ t, preferable Δ t standard value 60s, FD frosting degree, and FD preset value preset frosting degree.
TABLE 1
1-1 is not more than 1 and not more than 1-2 is not more than 1-3; xi 1-1 takes the value of [ 0.6-1.0 ]; xi 1-2 takes the value of [ 0.8-1.2 ]; xi 1-3 value [ 1-3 ]
Xi 2-1 is not more than xi 2-2 is not more than xi 2-3; xi 2-1 takes a value of [ 0.6-1.1 ]; xi 2-2 takes a value of [ 0.8-1.2 ]; xi 2-3 value [ 1-3 ]
Xi 3-1 is less than or equal to xi 3-2; xi 2-1 takes a value of [ 1-3 ]; xi 2-2 takes the value of [ 1-4 ];
ξ1-1≤ξ2-1≤ξ3-1
ξ1-2≤ξ2-2≤ξ3-2
because the T outer ring is more than 5.8 ℃ and the T outer ring is less than or equal to minus 12.8 ℃ regardless of the relative humidity, the two intervals are in the working condition of no frosting, so the method has the advantages of simple structure, low cost and high safety
Xi 0 takes the value of [ 1-50 ].
And when the FD is judged not to meet the condition, judging that the accumulated operation time of the frosting degree calculation method is met, and when the accumulated operation time reaches a preset value, judging that the air conditioner enters defrosting control. When the accumulated frosting degree is smaller than a preset frosting degree, counting the accumulated time length of which the temperature difference value is larger than the first preset value; and when the accumulated time length is longer than the preset accumulated time length, controlling the air conditioner to enter a defrosting mode. The preset accumulation period is determined based on the outdoor ambient temperature and the relative humidity.
And (3) judging the time meeting the conditions that Td is less than or equal to 0 ℃ and delta T is greater than or equal to Td-Te and is greater than or equal to 0 ℃, timing T0, judging that the accumulated time is greater than the preset accumulated time, if the accumulated time is not greater than the preset accumulated time, continuously calculating FD, and if the conditions are met, entering defrosting control.
Wherein the value of t0 is determined between the outer ring and the humidity partition
Based on the difference between the outer ring and the interval, t is preset to be 1 ═ δ t standard value, specifically see table 2:
TABLE 2
Delta 1-1 is more than or equal to delta 1-2 is more than or equal to delta 1-3; delta 1-1 takes the value of [ 0.5-1.0 ]; delta 1-2 takes the value of [ 0.8-1.2 ]; delta 1-3 takes the value of [ 1-5 ];
delta 2-1 is more than or equal to delta 2-2 is more than or equal to delta 2-3; delta 2-1 takes the value of [ 0.6-1.1 ]; delta 2-2 takes the value of [ 0.8-1.5 ]; delta 2-3 takes the value of [ 1-6 ];
delta 3-1 is not more than delta 3-2; delta 2-1 takes the value of [ 1-5 ]; delta 2-2 takes the value of [ 1-10 ];
δ1-1≤δ2-1≤δ3-1；
δ1-2≤δ2-2≤δ3-2；
because the T outer ring is more than 5.8 ℃ interval (the outer ring temperature is high) and the T outer ring is less than or equal to minus 12.8 ℃ (the moisture content is low), no matter what the relative humidity is, the two intervals are the frostless working condition, so the time threshold value protection measure is not set.
Determining whether delta T is Td-Te
T outer ring is greater than 5.8 deg.C: Δ T > Δ T1; delta T1 value [5 ℃,10 ℃) ]
The temperature of T outer ring is less than or equal to minus 12.8 ℃, and delta T is more than delta T2; delta T2 value [5 ℃,10 ℃) ]
As an exemplary embodiment, when the defrosting time of the air conditioner is in different intervals, the previous frosting degree preset value is automatically adjusted, so that the time for the next air conditioner to enter the defrosting control is in a reasonable frosting thickness of the air conditioner. Specifically, the time interval from the start of defrosting to the end of defrosting is obtained; when the interval duration is in a first preset interval, keeping the preset frosting degree unchanged; when the interval length is in a second preset interval, reducing the preset frosting degree; and when the interval duration is in a third preset interval, increasing the preset frosting degree, wherein the minimum value of the second preset interval is greater than or equal to the maximum value of the first preset interval, and the maximum value of the third preset interval is less than or equal to the minimum value of the first preset interval. For example, the time interval from the start of defrosting to the end of defrosting can be the time interval from the moment of starting defrosting to the time interval when the temperature of the outer pipe reaches 0 ℃ or more than 0 ℃, when the air conditioner is applied at home, the air conditioner enters defrosting when the FD is not less than the preset value FD, and the time ts from the start of defrosting to the end of defrosting is recorded; judging ts0 is more than ts and less than or equal to ts 1; if yes, continuing to judge next defrosting according to the original FD preset value, if ts is larger than ts1, indicating that the defrosting time is too long (frost layer thickness), subtracting a value from the FD preset value on the original basis, and obtaining the FD preset value-delta FD; if ts is less than or equal to ts0, the defrosting time is too short (frost layer is light), and the FD preset value + delta FD is obtained; thereby realizing the self-adaptive control in the defrosting process. Illustratively, the first preset interval may be [ ts0, ts 1], the second preset interval may be greater than ts1, and the third preset interval may be less than ts0, wherein ts1 is less than or equal to 8min and less than or equal to 12min and ts0 is less than or equal to 8 min. For example, see the adaptive adjustment measures shown in table 3:
TABLE 3
| Defrosting time ts | FD Preset value |
| ts＞ts1 | Preset value of FD- Δ FD |
| ts0＜ts≤ts1 | FD Preset value |
| ts≤ts0 | FD Preset value + Δ FD |
As an alternative embodiment of the method according to the invention,
when the outdoor unit of the air conditioner does not have a humidity sensor, or the air conditioner cannot acquire the humidity sensor through a third-party way, two schemes are provided for controlling the relative humidity;
the first method is as follows: presetting a fixed humidity parameter value, RHC
60％≤RHC≤90％
The second method is as follows: the RH was preset based on the winter air temperature statistics of our country, see table 4:
TABLE 4
| Between outer ring partitions | RH value |
| T outer ring > 5 DEG C | η1RHc |
| T is more than 2 and the outer ring is less than or equal to 5 DEG C | η2RHc |
| T is more than-2 and the outer ring is less than or equal to 2 DEG C | η3RHc |
| T is more than-6 and the outer ring is less than or equal to-2 DEG C | η4RHc |
| T outer ring is less than or equal to minus 6 DEG C | η5RHc |
Wherein 2 is more than or equal to eta 3 and more than or equal to eta 2 and more than or equal to eta 1 and more than or equal to 0.5; eta 3 is more than or equal to 2 and more than or equal to eta 4 and more than or equal to eta 5 and more than or equal to 0.5.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., a ROM (Read-Only Memory)/RAM (Random Access Memory), a magnetic disk, an optical disk) and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the methods according to the embodiments of the present application.
According to another aspect of the embodiment of the application, an air conditioner control device for implementing the air conditioner control method is further provided. Fig. 3 is a schematic diagram of an alternative air conditioning control device according to an embodiment of the present application, and as shown in fig. 3, the device may include:
an obtaining module 302, configured to obtain an outdoor environment temperature, a relative humidity, and an air conditioner outer tube temperature;
a first calculation module 304 for calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity;
the second calculating module 306 is configured to calculate a temperature difference between the real-time dew point temperature and the temperature of the air conditioner outer tube;
an accumulation module 308, configured to accumulate a first frosting degree corresponding to a temperature difference greater than a first preset value to obtain an accumulated frosting degree, where the first frosting degree is obtained based on the difference and a preset time duration;
and the control module 310 is configured to control the air conditioner to enter a defrosting mode when the accumulated frosting degree is greater than a preset frosting degree.
It should be noted here that the modules described above are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to the disclosure of the above embodiments. It should be noted that the modules described above as a part of the apparatus may be operated in a hardware environment as shown in fig. 1, and may be implemented by software, or may be implemented by hardware, where the hardware environment includes a network environment.
According to still another aspect of the embodiments of the present application, there is also provided an electronic device for implementing the air conditioner control method, where the electronic device may be a server, a terminal, or a combination thereof.
Fig. 4 is a block diagram of an alternative electronic device according to an embodiment of the present application, as shown in fig. 4, including a processor 402, a communication interface 404, a memory 406, and a communication bus 408, where the processor 402, the communication interface 404, and the memory 406 communicate with each other via the communication bus 408, where,
a memory 406 for storing a computer program;
the processor 402, when executing the computer program stored in the memory 406, performs the following steps:
acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer tube temperature;
calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity;
calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner;
accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain an accumulated frosting degree, wherein the first frosting degree is obtained based on the difference value and the preset time length;
and when the accumulated frosting degree is greater than the preset frosting degree, controlling the air conditioner to enter a defrosting mode.
Alternatively, in this embodiment, the communication bus may be a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 4, but this does not indicate only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The memory may include RAM, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. Alternatively, the memory may be at least one memory device located remotely from the processor.
As an example, as shown in fig. 4, the memory 406 may include, but is not limited to, various modules of the air conditioner. In addition, other module units in the air conditioner control device may also be included, but are not limited to these, and are not described in detail in this example.
The processor may be a general-purpose processor, and may include but is not limited to: a CPU (Central Processing Unit), an NP (Network Processor), and the like; but also a DSP (Digital Signal Processing), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment is not described herein again.
It can be understood by those skilled in the art that the structure shown in fig. 4 is only an illustration, and the device implementing the air conditioner control method may be a terminal device, and the terminal device may be a terminal device such as a smart phone (e.g., an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, a Mobile Internet Device (MID), a PAD, and the like. Fig. 4 is a diagram illustrating the structure of the electronic device. For example, the terminal device may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in FIG. 4, or have a different configuration than shown in FIG. 4.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program instructing hardware associated with the terminal device, where the program may be stored in a computer-readable storage medium, and the storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, and the like.
According to still another aspect of an embodiment of the present application, there is also provided a storage medium. Alternatively, in the present embodiment, the storage medium may be used for a program code of an air conditioner control method.
Optionally, in this embodiment, the storage medium may be located on at least one of a plurality of network devices in a network shown in the above embodiment.
Optionally, in this embodiment, the storage medium is configured to store program code for performing the following steps:
acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer tube temperature;
calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity;
calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner;
accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain an accumulated frosting degree, wherein the first frosting degree is obtained based on the difference value and the preset time length;
and when the accumulated frosting degree is greater than the preset frosting degree, controlling the air conditioner to enter a defrosting mode.
Optionally, the specific example in this embodiment may refer to the example described in the above embodiment, which is not described again in this embodiment.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a U disk, a ROM, a RAM, a removable hard disk, a magnetic disk, or an optical disk.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
The integrated unit in the above embodiments, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in the above computer-readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including instructions for causing one or more computer devices (which may be personal computers, servers, network devices, or the like) to execute all or part of the steps of the method described in the embodiments of the present application.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, and may also be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (9)
1. An air conditioner control method, comprising:
acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer tube temperature;
calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity;
calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner;
accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain an accumulated frosting degree, wherein the first frosting degree is obtained based on the difference value and the preset time length;
when the accumulated frosting degree is larger than a preset frosting degree, controlling the air conditioner to enter a defrosting mode;
when the accumulated frosting degree is smaller than a preset frosting degree, counting the accumulated time length of which the temperature difference value is larger than the first preset value;
and when the accumulated time length is longer than the preset accumulated time length, controlling the air conditioner to enter a defrosting mode.
2. The air conditioner control method of claim 1, wherein accumulating the first frosting degree corresponding to the temperature difference value greater than the preset value to obtain an accumulated frosting degree comprises:
judging whether the temperature difference value is larger than a first preset value or not;
when the temperature difference is larger than the first preset value, calculating the frosting degree within a preset time length as the first frosting degree under the current temperature difference;
and accumulating the first frosting degrees in a plurality of preset time lengths corresponding to the temperature difference values larger than the first preset value according to a time sequence to obtain the accumulated frosting degrees.
3. The air conditioner control method according to claim 1, comprising, before said accumulating the first frost degree corresponding to the temperature difference value greater than the preset value:
judging whether the real-time dew point temperature is smaller than a second preset value or not;
when the real-time dew point temperature is smaller than a second preset value, judging whether the temperature difference value is larger than a first preset value or not;
and when the temperature difference is larger than the first preset value, accumulating the first frosting degree corresponding to the temperature difference larger than the preset value.
4. The air conditioning control method of claim 1, wherein the preset accumulated time period is determined based on the outdoor ambient temperature and the relative humidity.
5. The air-conditioning control method of any one of claims 1-3, wherein the preset frosting degree is determined based on the preset time period and an outdoor environment factor, and the outdoor environment factor is determined based on the outdoor environment temperature and the relative humidity.
6. The air conditioning control method according to claim 1, further comprising:
acquiring the interval duration from the start of defrosting to the end of defrosting;
when the interval duration is in a first preset interval, keeping the preset frosting degree unchanged;
when the interval duration is in a second preset interval, reducing the preset frosting degree;
and when the interval duration is in a third preset interval, increasing the preset frosting degree, wherein the minimum value of the second preset interval is greater than or equal to the maximum value of the first preset interval, and the maximum value of the third preset interval is less than or equal to the minimum value of the first preset interval.
7. An air conditioning control apparatus characterized by being configured to execute the air conditioning control method according to any one of claims 1 to 6, comprising:
the acquisition module is used for acquiring the outdoor environment temperature, the relative humidity and the air conditioner outer pipe temperature;
a first calculation module for calculating a real-time dew point temperature based on the outdoor ambient temperature and the relative humidity;
the second calculation module is used for calculating the temperature difference between the real-time dew point temperature and the temperature of the outer pipe of the air conditioner;
the accumulation module is used for accumulating the first frosting degree corresponding to the temperature difference value larger than the first preset value to obtain the accumulated frosting degree, and the first frosting degree is obtained based on the difference value and the preset time length;
and the control module is used for controlling the air conditioner to enter a defrosting mode when the accumulated frosting degree is greater than a preset frosting degree.
8. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein said processor, said communication interface and said memory communicate with each other via said communication bus,
the memory for storing a computer program;
the processor is configured to execute the air conditioning control method steps of any one of claims 1 to 6 by executing the computer program stored in the memory.
9. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the air conditioning control method steps of any one of claims 1 to 6 when executed.
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