CN113483450B - Control method, device and equipment of air conditioner and storage medium - Google Patents

Control method, device and equipment of air conditioner and storage medium Download PDF

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Publication number
CN113483450B
CN113483450B CN202110784531.4A CN202110784531A CN113483450B CN 113483450 B CN113483450 B CN 113483450B CN 202110784531 A CN202110784531 A CN 202110784531A CN 113483450 B CN113483450 B CN 113483450B
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temperature
air conditioner
correction
determining
environment temperature
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CN113483450A (en
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熊绍森
连彩云
廖敏
翟振坤
梁之琦
徐耿彬
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

Abstract

The application relates to a control method, a control device, equipment and a storage medium of an air conditioner, wherein the method comprises the following steps: when detecting that the outdoor environment temperature sensor of the air conditioner breaks down, monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner; determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter; and controlling the air conditioner to operate based on the external environment temperature. The air conditioner temperature sensor is used for solving the problems that the air conditioner stop operation time is too long and the user experience is poor due to the fact that the air conditioner environment temperature sensor breaks down.

Description

Control method, device and equipment of air conditioner and storage medium
Technical Field
The present application relates to the field of air conditioning technologies, and in particular, to a method, an apparatus, a device, and a storage medium for controlling an air conditioner.
Background
The air conditioner is an indispensable part of people in modern life, an outdoor environment temperature sensor is arranged on the air conditioner, one end of the outdoor environment temperature sensor is connected to an outdoor unit control mechanism, the other end of the outdoor environment temperature sensor is fixed at an air inlet of a condenser through a corresponding wire groove or a fixing seat, and a corresponding control strategy for air conditioner operation is formulated by detecting the temperature of air inlet air outside the room.
However, when the air conditioner is used for a long time, the probability of the outdoor ambient temperature sensor malfunctioning may increase. In the existing air conditioner control logic, the operation of the air conditioner is mainly controlled based on the indoor environment temperature and the outdoor environment temperature, when the outdoor environment temperature sensor fails, the outdoor environment temperature cannot be collected, the air conditioner cannot be continuously controlled according to the existing control logic, the common control strategy is to display the temperature sensing bulb fault on the display of the indoor unit, and simultaneously, the air conditioner stops operating until the fault is eliminated.
The problem with this control strategy is that the user's comfort experience is ignored, although the user's safety in the event of a sensor failure is taken into account.
Disclosure of Invention
The application provides a control method, a control device, control equipment and a storage medium of an air conditioner, and aims to solve the problems that in the prior art, the air conditioner stop operation time is too long and the user experience is poor due to the fact that an air conditioner environment temperature sensor breaks down.
In a first aspect, an embodiment of the present application provides a control method of an air conditioner, including:
when detecting that the outdoor environment temperature sensor of the air conditioner breaks down, monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner;
determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter;
and controlling the air conditioner to operate based on the external environment temperature.
Optionally, the temperature-affecting parameter includes: system operating parameters and time operating parameters of the air conditioner;
the determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter includes:
determining a first corrected temperature based on the system operating parameter;
determining a second corrected temperature based on the temporal operating parameter;
and calculating the external environment temperature of the air conditioner based on the temperature of the outdoor side condenser, the first correction temperature and the second correction temperature.
Optionally, the system operating parameters include: indoor ambient temperature and set target temperature; alternatively, compressor phase current; or, the inner fan wind speed and the outer fan wind speed; determining a first corrected temperature based on the system operating parameter includes:
acquiring a first temperature difference value between the indoor environment temperature and the target temperature;
determining a first correction temperature based on a first preset corresponding relation among the first temperature difference, the indoor environment temperature and the first correction temperature; wherein the first corrected temperature is positively correlated with the indoor ambient temperature at the same first temperature difference; the first correction temperature is positively correlated with the first temperature difference value under the same indoor environment temperature;
or, determining the first correction temperature based on a second preset corresponding relation between the compressor phase current and the first correction temperature; wherein the first modified temperature is positively correlated with the compressor phase current;
or determining the first correction temperature based on a third preset corresponding relation among the wind speed of the inner fan, the wind speed of the outer fan and the first correction temperature; wherein the first corrected temperature is inversely related to the outer fan wind speed at the same inner fan wind speed; the first corrected temperature is inversely related to the inner fan wind speed at the same outer fan wind speed.
Optionally, the time operation parameters include: after the outdoor environment temperature sensor fails, the operation duration of the air conditioner, and the determining of the second correction temperature based on the time operation parameter, include:
determining a second correction temperature based on a fourth preset corresponding relation between the operation duration and the second correction temperature; wherein the second corrected temperature is inversely related to the operating time period.
Optionally, after detecting that the outdoor environment temperature sensor of the air conditioner has a fault, before monitoring the temperature of the outdoor side condenser and the temperature influence parameter of the air conditioner, the method further includes: and controlling the air conditioner to stop for a first preset time and restarting the air conditioner.
Optionally, the calculating the external environment temperature of the air conditioner based on the temperature of the outdoor side condenser, the first corrected temperature, and the second corrected temperature includes:
calculating the product of a first preset coefficient and the first correction temperature to obtain a first product;
calculating the product of a second preset coefficient and the second correction temperature to obtain a second product;
and calculating the temperature of the outdoor condenser, the sum of the first product and the second product to obtain the external environment temperature.
Optionally, after determining the external environment temperature of the air conditioner, the method further includes:
judging whether the operation time length is less than or equal to a second preset time length or not;
if the running time is less than or equal to the second preset time, controlling a compressor of the air conditioner to run at a preset frequency;
if the running time is longer than the second preset time, acquiring a target frequency and a correction frequency of a compressor of the air conditioner based on the external environment temperature; and controlling the compressor of the air conditioner to operate based on the frequency difference value of the target frequency and the correction frequency.
Optionally, the obtaining the target frequency and the correction frequency of the compressor of the air conditioner based on the external environment temperature includes:
acquiring the target frequency corresponding to the external environment temperature according to the external environment temperature;
acquiring a second temperature difference between the temperature of the outdoor side condenser and the external environment temperature;
determining the correction frequency according to a fifth preset corresponding relation between the second temperature difference and the correction frequency; wherein the correction frequency is positively correlated with the second temperature difference.
In a second aspect, an embodiment of the present application provides a control device for an air conditioner, including:
the monitoring module is used for monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner when detecting that the outdoor environment temperature sensor of the air conditioner breaks down;
the determining module is used for determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter;
and the control module is used for controlling the operation of the air conditioner based on the external environment temperature.
In a third aspect, an embodiment of the present application provides an electronic device, including: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;
the memory for storing a computer program;
the processor is configured to execute the program stored in the memory, and implement the control method of the air conditioner according to the first aspect.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the control method of the air conditioner according to the first aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the method provided by the embodiment of the application provides an alternative scheme for determining the external environment temperature when the outdoor environment temperature sensor of the air conditioner breaks down, namely, the external environment temperature of the air conditioner is determined according to the temperature of the outdoor side condenser and the temperature influence parameter, and the external environment temperature determined according to the alternative scheme is utilized to control the air conditioner to run.
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 flowchart of a control method of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a method for determining an external ambient temperature of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device of an air conditioner according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some 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.
In order to solve the problem that in the prior art, an air conditioner ambient temperature sensor fails to work, which results in an air conditioner with too long stop time and poor user experience, an embodiment of the present application provides a control method for an air conditioner, as shown in fig. 1, the method includes:
step 101, when detecting that an outdoor environment temperature sensor of an air conditioner breaks down, monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner;
an outdoor environment temperature sensor of the air conditioner is arranged outdoors, and faults can occur due to the fact that the air conditioner is used for too long time. When the outdoor environment temperature sensor fails, the outdoor environment temperature sensor is displayed on the indoor machine display to remind a user of timely troubleshooting.
Wherein the temperature of the outdoor condenser is the temperature T of the refrigerant pipe of the outdoor condenserOuter tube. In specific implementation, the temperature sensor arranged at the refrigerant pipe of the condenser can be used for acquiring the temperature T of the refrigerant pipeOuter tube. The outdoor side condenser pipe takes place heat exchange at the in-process of air conditioner operation with the outside air, and along with the time lapse, the heat exchange can tend to balanced, consequently, the temperature of outdoor side condenser pipe department more can embody outside ambient temperature, then revises on the basis of outdoor side condenser pipe temperature, obtains outdoor ambient temperature more reliably. The temperature influence parameters of the air conditioner comprise two types:
in the first category, the system operation parameters of the air conditioner mainly include: indoor ambient temperature and set target temperature; alternatively, compressor phase current; or, the inner fan wind speed and the outer fan wind speed;
and the second type is the time operation parameter of the air conditioner, wherein the time operation parameter mainly refers to the operation time of the air conditioner after the outdoor environment temperature sensor breaks down.
102, determining the external environment temperature of the air conditioner according to the temperature and the temperature influence parameters of the outdoor condenser;
when the outdoor ambient temperature sensor fails, the embodiment of the present application provides an alternative scheme for obtaining the external ambient temperature, and the external ambient temperature of the air conditioner is determined by the temperature and the temperature influence parameter of the outdoor side condenser, specifically, as shown in fig. 2, the external ambient temperature of the air conditioner is determined according to the temperature and the temperature influence parameter of the outdoor side condenser, including:
step 201, determining a first correction temperature based on system operation parameters;
specifically, when the system operation parameters of the air conditioner are an indoor environment temperature and a set target temperature, a first temperature difference value between the indoor environment temperature and the target temperature is obtained; the first correction temperature is determined based on a first preset corresponding relationship between the first temperature difference, the indoor ambient temperature and the first correction temperature. Under the same first temperature difference value, the first correction temperature is positively correlated with the indoor environment temperature; the first correction temperature is positively correlated with the first temperature difference under the same indoor environment temperature. In particular implementations, the target temperature may be determined based on a temperature set by a user.
As shown in table 1, a first temperature difference between the indoor ambient temperature and the target temperature, and a first preset correspondence between the indoor ambient temperature and the first corrected temperature are shown in table 1. When the first temperature difference and the indoor ambient temperature are known, a first corrected temperature is determined by looking up a table from table 1.
TABLE 1 first Preset correspondences between first temperature Difference, indoor ambient temperature, and first corrected temperature
Figure BDA0003158655100000071
Wherein, TInner ringRepresenting the indoor ambient temperature, Δ T representing a first temperature difference, Δ T01、ΔT02、ΔT03、ΔT04Critical values, T, for each interval set according to the first temperature differenceInner ring 01、TInner ring 02、TInner ring 03Critical value, T, for each interval set according to indoor ambient temperature01～T35The first corrected temperatures are corresponding to different first temperature difference values and indoor environment temperatures. Under the same first temperature difference value, the higher the indoor environment temperature is, the larger the first correction temperature is; the larger the first temperature difference is, the larger the first correction temperature is at the same indoor ambient temperature. In particular embodiments, T is01～T35The range of the temperature ranges from 0 ℃ to 5 DEG C]The interval division can be performed according to actual conditions.
When looking up the table, firstly determining the indoor environment temperature TInner ringThe falling interval and the interval in which the first temperature difference Δ T falls are determined, and the intersection of the two intervals is the first corrected temperature, for example, if the indoor environment temperature T is determinedInner ringThe falling interval is TInner ring 01≤TInner ring＜TInner ring 02The interval in which the first temperature difference Δ T falls is Δ T02＜ΔT≤ΔT03If the first correction temperature is T13。
And when the system operation parameter of the air conditioner is the compressor phase current, determining the first correction temperature based on a second preset corresponding relation between the compressor phase current and the first correction temperature. Wherein the first modified temperature is positively correlated with the compressor phase current; the larger the compressor phase current, the larger the first correction temperature.
As shown in table 2, table 2 shows a second preset corresponding relationship between the compressor phase current and the first correction temperature, and after the compressor phase current is obtained, the first correction temperature corresponding to the compressor phase current is determined by looking up table 2.
TABLE 2 second Preset correspondences between compressor phase currents and first corrected temperatures
Figure BDA0003158655100000081
Wherein, IPhase (C)Representing compressor phase current, IPhase 1、IPhase 2、IPhase 3、IPhase 4According to phase current I of compressorPhase (C)Set threshold value, T, of each interval41、T42、T43、T44、T45And the first corrected temperature corresponds to each compressor phase current section. Likewise, compressor phase current IPhase (C)The range of the section can be divided according to the actual situation.
During table lookup, the compressor phase current I is monitoredPhase (C)Determining the range of the section to which the compressor belongs according to the phase current I of the compressorPhase (C)The range of the corresponding interval determines the corresponding first correction temperature. For example, compressor phase current IPhase (C)Fall within the interval of IPhase 3＜IPhase (C)≤IPhase 4If the first correction temperature is T44。
And when the system operation parameters of the air conditioner are the wind speed of the inner fan and the wind speed of the outer fan, determining the first correction temperature based on a third preset corresponding relation among the wind speed of the inner fan, the wind speed of the outer fan and the first correction temperature.
Wherein the first corrected temperature is inversely related to the wind speed of the outer fan at the same wind speed of the inner fan; the first corrected temperature is inversely related to the inner fan speed at the same outer fan speed. Under the same wind speed of the inner fan, the larger the wind speed of the outer fan is, the smaller the first correction temperature is; under the same wind speed of the outer fan, the larger the wind speed of the inner fan is, the smaller the first correction temperature is.
As shown in table 3, a third preset corresponding relationship between the inner fan wind speed, the outer fan wind speed, and the first corrected temperature is shown in table 3. And after the wind speed of the inner fan and the wind speed of the outer fan are obtained, determining a first correction temperature by looking up a table 3.
TABLE 3 third Preset correspondence between inner and outer Fan wind speeds and first modified temperature
Figure BDA0003158655100000091
Wherein R isInner partRepresenting the wind speed of the inner fan, ROuter coverRepresenting the wind speed of the outer fan, in particular implementation, the wind speed can be characterized according to the wind gear, and for the wind speed of the inner fan, the divided wind gears comprise: the five gears of the super-strong gear, the high gear, the middle gear, the low gear and the mute gear; for outer fan speeds, the divided windshields include: four gears of a super-strong gear, a high wind gear, a medium/low wind gear and a mute gear.
Specifically, according to the wind speed R of the internal fanInner partDetermining the gear of the inner fan and according to the wind speed R of the outer fanOuter coverAnd determining the wind gear of the outer fan, wherein the temperature at the junction of the wind gear of the inner fan and the wind gear of the outer fan is the first correction temperature. For example, when the wind speed R is based on the inner fanInner partDetermining the gear of the inner fan as a high gear according to the wind speed R of the outer fanOuter coverDetermining the wind speed of the outer fan to be a high wind gear, and determining the temperature T at the junction of the high wind gear and the high wind gear62Namely the first correction temperature.
In specific implementation, the wind gear of the inner fan can be determined according to the wind gear set by a user. And the outer fan gear can be determined according to system operation parameters such as compressor frequency and temperature.
Step 202, determining a second corrected temperature based on the time operating parameter;
specifically, the time operation parameters are as follows: and after the outdoor environment temperature sensor breaks down, determining the second correction temperature based on a fourth preset corresponding relation between the operation time and the second correction temperature according to the operation time of the air conditioner. Wherein the second corrected temperature is inversely related to the operating duration; the longer the operating time, the smaller the second correction temperature.
As shown in table 4, a fourth preset correspondence between the operating time period and the second correction temperature is shown in table 4. After the running time is obtained, the second correction temperature can be determined by looking up the table 4.
TABLE 4 fourth Preset correspondence between run Length and second corrected temperature
Figure BDA0003158655100000101
Wherein Δ t represents the operation duration of the air conditioner after the outdoor ambient temperature sensor of the air conditioner has failed, and as discussed above, as the air conditioner operates, the heat exchange between the temperature of the outdoor side condenser tube and the outside air tends to be balanced, and the second correction temperature is different under the condition of different operation durations, and as the operation duration increases, the second correction temperature is smaller, and when Δ t is smaller>△t04When, T95The value is 0. In Table 4, TCorrection 2Representing the second correction temperature, 0,. DELTA.t01、△t02、△t03、△t04Is a critical value of each interval set according to the running time length. T is91、T92、T93、T94、T95And the second correction temperature corresponds to each operation time interval. For example, the interval when the operation duration falls is Δ t03＜△t≤△t04Then, the second corrected temperature is determined to be T94。
In specific implementation, when the outdoor environment temperature sensor of the air conditioner is detected to be out of order, in order to ensure the reliability of the compressor and avoid overhigh temperature of equipment, a protection program can be set, the air conditioner is controlled to be stopped for a first preset time, specifically, the first preset time can be 3 minutes, the air conditioner is restarted after the air conditioner is stopped for the first preset time, and in this case, the running time is the working time counted from the restart of the air conditioner.
In addition, it should be noted that when the outdoor ambient temperature sensor of the air conditioner fails, the air conditioner is controlled to stop for a first preset time, and when the air conditioner is restarted, a fault code indicating that the outdoor ambient temperature sensor fails is continuously displayed on the display of the indoor unit of the air conditioner, so as to remind a user that the outdoor ambient temperature sensor fails and remove the fault as soon as possible.
The embodiment of the application provides a method for determining the second correction temperature under different processing programs after the outdoor environment temperature sensor fails, and provides an important data basis for ensuring the normal operation of the air conditioner.
And step 203, calculating the external environment temperature of the air conditioner based on the temperature of the outdoor side condenser, the first correction temperature and the second correction temperature.
Specifically, the temperature of the outdoor condenser is set to TOuter tubeThe first correction temperature is TCorrection 1The second correction temperature is TCorrection 2Based on the temperature T of the condenser outside the chamberOuter tubeThe first corrected temperature TCorrection 1And a second corrected temperature TCorrection 2Calculating the external ambient temperature T of the air conditionerComputingThe method comprises the following steps:
calculating a first preset coefficient a and a first correction temperature TCorrection 1Obtaining a first product;
calculating a second preset coefficient b and a second corrected temperature TCorrection 2To obtain a second product;
calculating the sum of the temperature of the condenser outside the chamber, the first product and the second product to obtain the external environment temperature TComputingI.e. TComputing＝TOuter tube+aTCorrection 1+bTCorrection 2。
And 103, controlling the air conditioner to operate based on the external environment temperature.
After the external environment temperature is determined according to the method, the external environment temperature determined by the method is used for controlling the air conditioner to operate, and the air conditioner can be controlled to normally operate even if an outdoor environment temperature sensor of the air conditioner fails.
In this application embodiment, when the outdoor environment temperature sensor of air conditioner broke down, provided the alternative of a definite external environment temperature, promptly according to the temperature of outdoor side condenser with temperature influence parameter confirms the external environment temperature of air conditioner to utilize the external environment temperature control of confirming according to the alternative the air conditioner operation even if the outdoor environment temperature sensor of air conditioner broke down, also can utilize the alternative to provide important data basis for air conditioner control to control air conditioner normal operating satisfies user's refrigeration heating demand, compares in prior art, and the outdoor environment temperature sensor broke down and stops the scheme of operation till troubleshooting promptly, can improve user experience greatly.
When the outdoor environment temperature sensor is out of order and the air conditioner is restarted, a new control method is executed to the compressor of the air conditioner in order to ensure the reliability of the system operation, and the method comprises two stages:
the method comprises the following steps that in the first stage, when the running time of the air conditioner is less than or equal to a second preset time, the compressor is controlled to run at a preset frequency, and the preset frequency is usually set to be relatively low so as to ensure the running reliability of equipment; specifically, for two different working modes of cooling and heating, respective preset frequencies in the two working modes can be set correspondingly.
A second stage, when the running time of the air conditioner is longer than a second preset time, acquiring a target frequency and a correction frequency of a compressor of the air conditioner based on the external environment temperature; and controlling the compressor of the air conditioner to operate based on the frequency difference between the target frequency and the corrected frequency. Specifically, according to the external environment temperature, a target frequency corresponding to the external environment temperature is obtained; acquiring a second temperature difference value between the temperature of the outdoor side condenser and the external environment temperature; and determining the correction frequency according to a fifth preset corresponding relation between the second temperature difference and the correction frequency. Wherein the correction frequency is positively correlated with the second temperature difference; the larger the second temperature difference, the larger the correction frequency.
It should be noted here that any method for determining the target frequency of the compressor according to the external ambient temperature may be adopted for the corresponding relationship between the external ambient temperature and the target frequency. For a fifth predetermined correspondence between the second temperature difference and the correction frequency, see table 5.
TABLE 5 fifth Preset correspondence between second temperature Difference and correction frequency
Figure BDA0003158655100000121
Wherein, Delta TComputingRepresenting a second temperature difference between the temperature of the condenser outside the chamber and the temperature of the external environment, FCorrectionRepresenting the correction frequency. FCorrection 01～FCorrection 05The value is taken between 2Hz and 10Hz, and the Delta T can be divided according to the actual situationComputingAnd setting a value of the correction frequency corresponding to each section range.
The embodiment of the application provides a control method of the frequency of a compressor when an outdoor environment temperature sensor of an air conditioner breaks down, so that the reliability of system operation is guaranteed.
Based on the same concept, the embodiment of the present application provides a control device for an air conditioner, and specific implementation of the device may refer to the description of the method embodiment, and repeated descriptions are omitted, as shown in fig. 3, the device mainly includes:
the monitoring module 301 is used for monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner when detecting that the outdoor environment temperature sensor of the air conditioner breaks down;
a determining module 302, configured to determine an external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter;
and the control module 303 is used for controlling the operation of the air conditioner based on the external environment temperature.
In this application embodiment, when the outdoor environment temperature sensor of air conditioner broke down, provided the alternative of a definite external environment temperature, promptly according to the temperature of outdoor side condenser with temperature influence parameter confirms the external environment temperature of air conditioner to utilize the external environment temperature control of confirming according to the alternative the air conditioner operation even if the outdoor environment temperature sensor of air conditioner broke down, also can utilize the alternative to provide important data basis for air conditioner control to control air conditioner normal operating satisfies user's refrigeration heating demand, compares in prior art, and the outdoor environment temperature sensor broke down and stops the scheme of operation till troubleshooting promptly, can improve user experience greatly.
In one embodiment, the temperature-affecting parameter comprises: system operating parameters and time operating parameters of the air conditioner; wherein, the system operation parameters include: indoor ambient temperature and set target temperature; alternatively, compressor phase current; or, the inner fan wind speed and the outer fan wind speed; the time operation parameter is the operation time of the air conditioner after the outdoor environment temperature sensor fails; a determination module 302 for determining a first modified temperature based on the system operating parameter; determining a second correction temperature based on the operating duration; and calculating the external environment temperature of the air conditioner based on the temperature of the outdoor side condenser, the first correction temperature and the second correction temperature.
Specifically, the determining module 302 is configured to obtain a first temperature difference between an indoor ambient temperature and a target temperature; determining a first correction temperature based on a first preset corresponding relation among the first temperature difference, the indoor environment temperature and the first correction temperature; under the same first temperature difference value, the first correction temperature is positively correlated with the indoor environment temperature; under the same indoor environment temperature, the first correction temperature is positively correlated with the first temperature difference;
or determining the first correction temperature based on a second preset corresponding relation between the phase current of the compressor and the first correction temperature; wherein the first modified temperature is positively correlated with the compressor phase current;
or determining the first correction temperature based on a third preset corresponding relation among the wind speed of the inner fan, the wind speed of the outer fan and the first correction temperature; wherein the first corrected temperature is inversely related to the wind speed of the outer fan at the same wind speed of the inner fan; the first corrected temperature is inversely related to the inner fan speed at the same outer fan speed.
Specifically, the determining module 302 is configured to determine the second correction temperature based on a fourth preset corresponding relationship between the operation duration and the second correction temperature. Wherein the second corrected temperature is inversely related to the operating duration.
In an embodiment, after the monitoring module 301 detects that the outdoor ambient temperature sensor of the air conditioner has a fault, before monitoring the temperature of the outdoor side condenser and the temperature-affected parameter of the air conditioner, the method further includes: and the restarting module is used for controlling the air conditioner to stop for a first preset time and restarting the air conditioner.
In an embodiment, the determining module 302 is configured to calculate a product of a first preset coefficient and a first corrected temperature to obtain a first product; calculating the product of the second preset coefficient and the second correction temperature to obtain a second product; and calculating the temperature of the condenser at the outdoor side, and the sum of the first product and the second product to obtain the external environment temperature.
In a specific embodiment, after the determining module 302 determines the external ambient temperature of the air conditioner, the method further includes: the frequency control module is used for judging whether the running time length is less than or equal to a second preset time length; if the operation time is less than or equal to a second preset time, controlling a compressor of the air conditioner to operate at a preset frequency; the operation time is longer than a second preset time, and the target frequency and the correction frequency of the compressor of the air conditioner are obtained based on the external environment temperature; and controlling the compressor of the air conditioner to operate based on the frequency difference between the target frequency and the corrected frequency. The frequency control module acquires a target frequency corresponding to the external environment temperature according to the external environment temperature; acquiring a second temperature difference value between the temperature of the outdoor side condenser and the external environment temperature; and determining the correction frequency according to a fifth preset corresponding relation between the second temperature difference and the correction frequency. Wherein the correction frequency is positively correlated with the second temperature difference.
Based on the same concept, an embodiment of the present application further provides an electronic device, as shown in fig. 4, the electronic device mainly includes: a processor 401, a memory 402 and a communication bus 403, wherein the processor 401 and the memory 402 communicate with each other via the communication bus 403. The memory 402 stores a program executable by the processor 401, and the processor 401 executes the program stored in the memory 402, so as to implement the following steps:
when detecting that an outdoor environment temperature sensor of the air conditioner breaks down, monitoring the temperature of an outdoor condenser and temperature influence parameters of the air conditioner;
determining the external environment temperature of the air conditioner according to the temperature and the temperature influence parameters of the outdoor side condenser;
and controlling the operation of the air conditioner based on the external ambient temperature.
The communication bus 403 mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus 403 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 Memory 402 may include a Random Access Memory (RAM) or a 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 aforementioned processor 401.
The Processor 401 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc., and may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, and discrete hardware components.
In still another embodiment of the present application, there is also provided a computer-readable storage medium having stored therein a computer program which, when run on a computer, causes the computer to execute the control method of the air conditioner described in the above-described embodiment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The available media may be magnetic media (e.g., floppy disks, hard disks, tapes, etc.), optical media (e.g., DVDs), or semiconductor media (e.g., solid state drives), among others.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A control method of an air conditioner, comprising:
when detecting that the outdoor environment temperature sensor of the air conditioner breaks down, monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner;
determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter;
controlling the air conditioner to operate based on the external ambient temperature;
wherein the temperature influencing parameter comprises: system operating parameters and time operating parameters of the air conditioner;
the determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter includes:
determining a first corrected temperature based on the system operating parameter;
determining a second corrected temperature based on the temporal operating parameter;
and calculating the external environment temperature of the air conditioner based on the temperature of the outdoor side condenser, the first correction temperature and the second correction temperature.
2. The control method of an air conditioner according to claim 1, wherein the system operation parameters include: indoor ambient temperature and set target temperature; alternatively, compressor phase current; or, the inner fan wind speed and the outer fan wind speed; determining a first corrected temperature based on the system operating parameter includes:
acquiring a first temperature difference value between the indoor environment temperature and the target temperature;
determining a first correction temperature based on a first preset corresponding relation among the first temperature difference, the indoor environment temperature and the first correction temperature; wherein the first corrected temperature is positively correlated with the indoor ambient temperature at the same first temperature difference; the first correction temperature is positively correlated with the first temperature difference value under the same indoor environment temperature;
or, determining the first correction temperature based on a second preset corresponding relation between the compressor phase current and the first correction temperature; wherein the first modified temperature is positively correlated with the compressor phase current;
or determining the first correction temperature based on a third preset corresponding relation among the wind speed of the inner fan, the wind speed of the outer fan and the first correction temperature; wherein the first corrected temperature is inversely related to the outer fan wind speed at the same inner fan wind speed; the first corrected temperature is inversely related to the inner fan wind speed at the same outer fan wind speed.
3. The control method of an air conditioner according to claim 1, wherein the time operation parameter includes: after the outdoor environment temperature sensor fails, the operation duration of the air conditioner, and the determining of the second correction temperature based on the time operation parameter, include:
determining a second correction temperature based on a fourth preset corresponding relation between the operation duration and the second correction temperature; wherein the second corrected temperature is inversely related to the operating time period.
4. The method for controlling an air conditioner according to claim 1, wherein after detecting that the outdoor environment temperature sensor of the air conditioner is out of order, before monitoring the temperature of the outdoor side condenser and the temperature-affected parameter of the air conditioner, the method further comprises: and controlling the air conditioner to stop for a first preset time and restarting the air conditioner.
5. The method of claim 1, wherein the calculating the external ambient temperature of the air conditioner based on the temperature of the outdoor side condenser, the first corrected temperature, and the second corrected temperature includes:
calculating the product of a first preset coefficient and the first correction temperature to obtain a first product;
calculating the product of a second preset coefficient and the second correction temperature to obtain a second product;
and calculating the temperature of the outdoor condenser, the sum of the first product and the second product to obtain the external environment temperature.
6. The method for controlling an air conditioner according to claim 1, further comprising, after determining the external ambient temperature of the air conditioner:
judging whether the operation time length is less than or equal to a second preset time length or not;
if the running time is less than or equal to the second preset time, controlling a compressor of the air conditioner to run at a preset frequency;
if the running time is longer than the second preset time, acquiring a target frequency and a correction frequency of a compressor of the air conditioner based on the external environment temperature; and controlling the compressor of the air conditioner to operate based on the frequency difference value of the target frequency and the correction frequency.
7. The method of claim 6, wherein the obtaining a target frequency and a correction frequency of a compressor of the air conditioner based on the external ambient temperature comprises:
acquiring the target frequency corresponding to the external environment temperature according to the external environment temperature;
acquiring a second temperature difference between the temperature of the outdoor side condenser and the external environment temperature;
determining the correction frequency according to a fifth preset corresponding relation between the second temperature difference and the correction frequency; wherein the correction frequency is positively correlated with the second temperature difference.
8. A control device of an air conditioner, characterized by comprising:
the monitoring module is used for monitoring the temperature of an outdoor condenser and the temperature influence parameters of the air conditioner when detecting that the outdoor environment temperature sensor of the air conditioner breaks down;
the determining module is used for determining the external environment temperature of the air conditioner according to the temperature of the outdoor side condenser and the temperature influence parameter;
the control module is used for controlling the air conditioner to operate based on the external environment temperature;
wherein the temperature influencing parameter comprises: system operating parameters and time operating parameters of the air conditioner;
the determining module is specifically configured to determine a first corrected temperature based on the system operating parameter; determining a second corrected temperature based on the temporal operating parameter; and calculating the external environment temperature of the air conditioner based on the temperature of the outdoor side condenser, the first correction temperature and the second correction temperature.
9. An electronic device, comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;
the memory for storing a computer program;
the processor is configured to execute the program stored in the memory, and implement the control method of the air conditioner according to any one of claims 1 to 7.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method of controlling an air conditioner according to any one of claims 1 to 7.
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CN101788179B (en) * 2010-02-23 2012-06-20 广东格兰仕集团有限公司 Control method of variable frequency air conditioner
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CN104764148A (en) * 2015-03-24 2015-07-08 广东美的制冷设备有限公司 Control method and control device of outdoor fan and air conditioner
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CN108613325B (en) * 2018-05-04 2020-06-26 广东美的暖通设备有限公司 Energy demand correction method and system
CN108759035B (en) * 2018-08-02 2021-03-16 广东美的暖通设备有限公司 Air conditioner control method and device, air conditioner, electronic equipment and storage medium
CN112178879A (en) * 2020-09-18 2021-01-05 青岛海尔空调器有限总公司 Control method of air conditioner and air conditioner

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