CN115435449A - Control method, controller, medium, and program for defrosting of air conditioner - Google Patents
Control method, controller, medium, and program for defrosting of air conditioner Download PDFInfo
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- CN115435449A CN115435449A CN202210908096.6A CN202210908096A CN115435449A CN 115435449 A CN115435449 A CN 115435449A CN 202210908096 A CN202210908096 A CN 202210908096A CN 115435449 A CN115435449 A CN 115435449A
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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
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
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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
- F24F2110/20—Humidity
- F24F2110/22—Humidity 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
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
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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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- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
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- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a control method, a controller, a medium and a program for defrosting an air conditioner. Therefore, when the judgment threshold value is corrected according to the steady-state temperature threshold value compensation value and can not meet the normal defrosting requirement of the air conditioner, the judgment threshold value is further corrected according to the unsteady-state temperature threshold value compensation value, although the air conditioner is in an unstable state when running at the judgment threshold value, the problem of poor defrosting effect can be further solved, and the heating requirement of a user can be met.
Description
Technical Field
The invention relates to a control method, a controller, a medium and a program for defrosting of an air conditioner, and belongs to the field of application of air conditioner control technology.
Background
In the heating process of the air conditioner, the outdoor unit is used for refrigerating, and in an environment with low temperature, the outdoor heat exchanger, namely the condenser, is easy to frost for a long time, so that the heat exchange efficiency is influenced, the heating capacity of the indoor unit is influenced, and the defrosting operation needs to be performed regularly. Defrosting detection is generally based on detecting changes in condenser coil temperature, and is determined in conjunction with adjustments of compressor cumulative operating time. When the outdoor unit works, but the humidity environment is different, the frosting speed is different, the higher the humidity is, the more easily frosting is, and otherwise, the less easily frosting is. The current defrosting detection generally does not consider humidity environment, so real frosting can not be detected when the defrosting detection is not accurate, the real frosting of the heat exchanger can not be detected, or the phenomenon that the real frosting does not exist is detected, and the heating operation needs to be stopped during defrosting, so the heating effect of the indoor unit is influenced.
Disclosure of Invention
The invention provides a control method, a controller, a medium and a program for defrosting an air conditioner, aiming at the problem that heating defrosting detection of the existing air conditioner is inaccurate and influences heating effect.
The invention provides a control method for defrosting of an air conditioner, which comprises the following steps:
acquiring humidity information of the place where the air conditioner is installed;
generating a steady-state temperature threshold compensation value according to the humidity information, and correcting a judgment threshold value of the condenser temperature for defrosting of the air conditioner;
and under the condition that the defrosting result of the air conditioner does not meet the requirements of users based on the corrected coil temperature, calling an unsteady-state temperature threshold compensation value of the air conditioner to further correct the judgment threshold.
Optionally, the judgment threshold includes a first judgment threshold for comparing the current condenser temperature and a second judgment threshold for detecting the lowest condenser temperature within the preset accumulated operation time of the air conditioner.
Optionally, the acquiring humidity information of a place where the air conditioner is installed includes:
and determining the current humidity interval according to the change rule of the humidity of the place where the air conditioner is installed in one year.
Optionally, determining the currently affiliated humidity interval further includes:
acquiring environmental characteristic information of the place where the air conditioner is installed;
and correcting the humidity interval according to the environmental characteristic information.
Optionally, before further correcting the judgment threshold according to the humidity information, prompt information is given to remind a user of an unstable state which may occur when the air conditioner operates the corrected judgment threshold.
Optionally, when the judgment threshold is further modified according to the unsteady-state temperature threshold compensation value, the method includes:
receiving control software after the air conditioner corrects the judgment threshold, wherein the control software is generated based on a cloud server connected with the air conditioner;
and replacing the modified control software with the control software before modification in an online programming mode of the air conditioner.
The present invention also proposes a controller of an air conditioner, the controller being configured to:
acquiring humidity information of a place where the air conditioner is installed;
generating a steady-state temperature threshold compensation value according to the humidity information, and correcting a judgment threshold value of the condenser temperature for defrosting of the air conditioner;
and under the condition that the defrosting result of the air conditioner does not meet the requirement of a user based on the corrected coil temperature, calling an unsteady-state temperature threshold compensation value of the air conditioner so as to further correct the judgment threshold.
The present invention also proposes a storage medium having stored thereon computer-readable instructions that, when executed by a processor, cause the processor to execute a control method for correcting an air conditioner determination threshold value according to the above.
The present invention also proposes a computer program comprising program instructions which, when executed by a controller, enable the controller to implement the control method for correcting the air conditioner determination threshold value described above.
According to the control method for defrosting the air conditioner, the humidity information of the place where the air conditioner is installed is obtained, the steady-state temperature threshold compensation value is generated according to the humidity information, the judgment threshold value of the temperature of the condenser for defrosting the air conditioner is corrected, and finally the unsteady-state temperature threshold compensation value of the air conditioner is taken to further correct the judgment threshold value under the condition that the defrosting result of the air conditioner does not meet the requirements of a user based on the corrected coil temperature. Therefore, when the judgment threshold value is corrected according to the steady-state temperature threshold value compensation value and can not meet the normal defrosting requirement of the air conditioner, the judgment threshold value is further corrected according to the unsteady-state temperature threshold value compensation value, although the air conditioner is in an unstable state when running at the judgment threshold value, the problem of poor defrosting effect can be further solved, and the heating requirement of a user can be met.
Description of the drawings:
FIG. 1 is a flowchart of a control method for defrosting an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart of a further control method for defrosting an air conditioner based on the embodiment of FIG. 1;
fig. 3 is a simplified schematic diagram of the installation of the air conditioner in a room in the control method according to the embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a control method for defrosting of an air conditioner, which comprises the following steps as shown in figure 1:
s100, acquiring humidity information of the place where the air conditioner is installed;
s200, generating a steady-state temperature threshold compensation value according to the humidity information, and correcting a judgment threshold of the condenser temperature for defrosting of the air conditioner;
s300, under the condition that the defrosting result of the air conditioner does not meet the requirement of a user based on the corrected coil temperature, an unsteady-state temperature threshold compensation value of the air conditioner is obtained, and the judgment threshold is further corrected.
In step S100, there are various schemes for acquiring the humidity information, where it is more convenient to acquire the weather information of the location in real time based on the connection between the air conditioner and the network server to acquire the current humidity, and certainly, if the outdoor unit is equipped with a humidity sensor, it is more convenient and accurate. Generally, based on the requirement of cost, the humidity sensor cannot be installed in the outdoor unit of the air conditioner, and the air conditioner is generally provided with the WIFI module at present so that a user can conveniently control the air conditioner through mobile terminal equipment such as a mobile phone, therefore, the air conditioner can access a weather-related server to acquire local weather information in real time, and humidity information is extracted from the weather information. The WIFI module is not configured for some air conditioners with low-end models, the humidity of the place can be manually set according to the trend of humidity change in seasonal replacement of the place, the humidity of the place is divided into a plurality of humidity intervals according to the change rule of the humidity of the place where the air conditioner is installed in one year, for example, the humidity intervals are changed every month or are changed according to seasonal changes, and the air conditioner correspondingly adjusts the humidity intervals according to the current time. For example, the humidity of different seasons can be different in four seasons of the residence, for example, the humidity is lower in winter, such as a 30% -40% interval, and the humidity is higher in spring, such that the corresponding humidity interval is determined according to the current season.
Furthermore, the humidity interval can be corrected by further combining the environmental characteristic information of the place where the air conditioner is installed. For example, for different installation environments, such as the outdoor unit of an air conditioner is installed in places with high humidity, such as production workshops with high humidity, such as textile workshops and product coating factories, the humidity of the areas is high, and therefore the humidity interval needs to be corrected, for example, the 30% -40% interval in winter is corrected to be 40-50%; and conversely, the humidity reduction interval value is correspondingly reduced in some places with lower humidity.
In step S200, it is determined whether frost is formed according to a frost detection rule of the air conditioner, generally based on the condenser coil temperature. The specific defrosting judgment rule of the air conditioner comprises the following steps: firstly, recording the minimum temperature of the condenser coil pipe temperature in a first preset time after the compressor is started in a heating operation mode, for example, recording the minimum temperature of the condenser coil pipe in 5-10 minutes after the compressor is started, meanwhile, after the compressor is started, the compressor is operated accumulatively for a second preset time, for example, 30 minutes, whether the condenser coil pipe temperature is lower than a first preset temperature threshold value, for example, -7 ℃, and the condenser coil pipe temperature is also lower than the minimum temperature value, judging that the air conditioner frosts, and controlling the air conditioner to perform defrosting action subsequently.
And correcting the judgment threshold value of the condenser temperature for defrosting when the obtained humidity information is in the range of 30% -40% according to the current season of the place where the air conditioner is installed, wherein the judgment threshold value is specifically a first judgment threshold value used for comparing the current condenser temperature, namely the first preset temperature threshold value, and a second judgment threshold value of the lowest temperature of the condenser detected in the accumulated running preset time of the air conditioner is specifically the minimum temperature value. Because the air conditioner is not easy to frost with relatively low humidity, the temperature value is relatively adjusted to be lower according to the steady-state temperature threshold compensation value, for example, the first preset temperature threshold is adjusted from minus 7 ℃ to minus 9 ℃, and the temperature minimum value is adjusted to be lower from minus 1 ℃ to minus 2 ℃, so that the defrosting judgment of the air conditioner is more accurate.
The steady-state temperature threshold compensation value is generated by the air conditioner according to humidity information, the judgment threshold of the condenser temperature is automatically corrected based on the preset rule of the control software, or the corrected recommended judgment threshold range is pushed to a user after calculation according to the preset rule of the control software, and then the user selects a specific numerical value in the range, wherein the corrected range of the first preset temperature threshold can be-8 ℃ to-9.5 ℃, and then the user selects a numerical value such as-9 ℃.
In step S300, after the judgment threshold of the condenser temperature is corrected according to the humidity information based on the steady-state temperature threshold compensation value, if the user still finds that the air conditioner has a poor heating effect during the use of the air conditioner, the user reports to the manufacturer for repair, and after a maintenance worker of the manufacturer checks that the defrosting of the air conditioner still has a problem, if the defrosting still has a frequent defrosting action, the air conditioner operates for defrosting until the defrosting is achieved, because the outdoor unit of the air conditioner operates in a heating state during defrosting, the indoor unit stops supplying air at this time, and thus the frequent defrosting obviously affects the heating capacity of the air conditioner, thereby affecting the heating requirement of the user on the room. At the moment, the air conditioner calls an unsteady temperature threshold compensation value of the air conditioner, and the judgment threshold is further corrected according to the humidity information. Specifically, the maintenance personnel can determine the unsteady temperature threshold compensation value of the air conditioner through the APP of the air conditioner, and further modify the judgment threshold mentioned in the step S200, for example, adjust the first preset temperature threshold from-9 ℃ to-10 ℃, and adjust the minimum temperature value from-2 ℃ to-3 ℃, so as to further lower the judgment threshold, so as to reduce the defrosting frequency of the air conditioner and improve the heating capacity.
The unsteady temperature threshold compensation value is a temperature threshold compensation value configured by an air conditioner manufacturer for each air conditioner, and a user cannot directly modify or select the parameter when using the air conditioner, that is, in step S200, the steady temperature threshold compensation value may be generated by internal triggering of control software of the air conditioner, but the control software of the unsteady temperature threshold compensation value cannot be generated by internal automatic triggering, and the special modification permission of the air conditioner needs to be obtained to trigger the generation. If the maintenance personnel of the air conditioner use the super user authority, the parameter is called based on the control APP of the air conditioner. And the unsteady temperature threshold compensation value is adapted for each type of air conditioner, and the unsteady temperature threshold compensation values of different air conditioners may be different. What is called unsteady state means that when the air conditioner operates according to the judgment threshold value after the unsteady temperature threshold value compensation value is corrected, the air conditioner may easily have an unstable state, for example, when the air conditioner heats, the condition of excessive frosting may occur, which may cause the heat exchange efficiency of the condenser to be reduced, thereby affecting the indoor heating effect. Therefore, the air conditioner can be corrected under the condition that the unsteady temperature threshold compensation value is unnecessary, and if a user feeds back to an air conditioner manufacturer, a maintenance worker of the air conditioner obtains the compensation value through super user permission so as to continuously correct the judgment threshold problem for defrosting detection, and therefore the special heating requirement of the user is met.
Further, in some embodiments of the present invention, before the air conditioner humidity information is further corrected to the judgment threshold, a prompt message is given to remind the user of the unstable state that may occur when the air conditioner operates the corrected judgment threshold. If the user is reminded that the outdoor unit is frosted too much when the air conditioner is in heating operation, the heating capacity is reduced. Thereby making the user aware of it. The problem that a user may report to a manufacturer to waste maintenance resources of an air conditioner manufacturer and actually is not the air conditioner body and needs to be maintained is avoided.
In some embodiments of the present invention, as shown in fig. 2, when the determination threshold is further modified according to the unsteady-state temperature threshold compensation value, the method includes:
s400, receiving control software after the air conditioner corrects the judgment threshold, wherein the control software is generated based on a cloud server connected with the air conditioner;
and S500, replacing the modified control software with the control software before modification in an online programming mode of the air conditioner.
This embodiment sets forth how to implement in the controller software of the air conditioner when modifying the decision threshold based on the unsteady state temperature threshold compensation value.
In this embodiment, the air conditioner is connected with a cloud server, wherein the cloud server may be connected with an APP control software of a mobile terminal, such as a mobile phone, that controls the air conditioner, and when a user corrects a judgment threshold for defrosting detection of the air conditioner based on an unsteady temperature threshold compensation value through an interactive interface of the mobile phone APP, or when the APP automatically corrects the judgment threshold for defrosting detection of the air conditioner based on the unsteady temperature threshold compensation value according to a preset rule, the cloud server connected with the APP automatically generates a new version of control software of the air conditioner. The software may be the software that only modifies the judgment threshold value relative to the old software of the air conditioner. Or, the related control program needs to be further modified, for example, due to the modification of the judgment threshold, the unstable working problem of the air conditioner is caused, so that the air conditioner frosts too much, and therefore, the defrosting processing module program of the air conditioner needs to be further modified, for example, the defrosting time of the air conditioner is slightly increased, or the running frequency of a compressor during the defrosting of the air conditioner is increased, so that the excessive frosting is more thorough during the defrosting, and the one-time defrosting action and defrosting complete processing are ensured to be clean, so that the heating capacity of the air conditioner cannot be influenced.
The new version control software generated by the cloud server is sent to the controller of the air conditioner through a network such as an external network (such as a broadband network) and an internal network (such as wifi), and after receiving the new version control software, a related MCU of the controller can refresh the old version program in the memory according to an on-line programming (OTA) mode so as to replace the old version program with the new version control software. Therefore, the software of the controller realizes the correction of the judgment threshold value of the air conditioner for detecting the defrosting based on the unsteady temperature threshold value compensation value. The correction is specific to the air conditioner used by the user, and the corresponding corrected control software of different users may be different, so that the special heating requirements of the users are met in a personalized manner. The customized function of the user is really realized, so that the user experience is really improved.
The method for correcting the judgment threshold value of the defrosting detection of the air conditioner by the software is realized by generating a new control software of the air conditioner based on the server and updating the controller software based on an OTA (over the air) mode. In other implementation manners, the correction may also be performed through the controller software, for example, after the control software of the air conditioner receives the correction value based on the unsteady state parameter based on the APP of the user, the control software of the air conditioner directly modifies the part of the parameters of the air conditioner to implement the correction. Compared with the server-based mode of the embodiment, the modification mode has limited depth of the modified parameters, and generally only can modify the judgment threshold, but further modification of the air conditioner control software module related to the judgment threshold is difficult to realize. The control scheme of the previous embodiment is thus preferentially selected.
The invention also provides a controller of the air conditioner, wherein the controller of the air conditioner is internally provided with a processor and related module circuits connected with the processor to control various loads of the air conditioner, such as an inner fan, a compressor, an outer fan, a four-way valve and the like, and the controller of the air conditioner also comprises various sensors connected with the processor, such as sensors for detecting the indoor environment temperature, the evaporator tube temperature, the condenser tube temperature and the outdoor environment temperature, so as to detect the temperature values. The controller is configured to: the method comprises the steps of obtaining humidity information of the place where the air conditioner is installed, generating a steady-state temperature threshold value compensation value according to the humidity information, correcting a judgment threshold value of the temperature of a condenser for defrosting the air conditioner, and calling an unsteady-state temperature threshold value compensation value of the air conditioner to further correct the judgment threshold value under the condition that the defrosting result of the air conditioner does not meet the requirements of a user based on the corrected coil temperature. The control scheme for correcting the judgment threshold value of the air conditioner for detecting defrosting based on the unsteady state parameters is a method for correcting the interior of controller software based on a processor of the controller, and the specific control scheme can be described by referring to the method for correcting the judgment threshold value of the air conditioner by software in the previous embodiment.
Embodiments of the present application also provide a computer program product comprising program instructions that, when executed by a controller, enable the controller to implement any of the control methods for modifying an air conditioner determination threshold in the above embodiments.
Embodiments of the present application also provide a storage medium having computer readable instructions stored thereon, which, when executed by a controller, enable the controller to perform any of the control methods for correcting an air conditioner determination threshold in the above embodiments.
The invention also provides a control method for correcting the set temperature of the air conditioner, which comprises the following steps:
s10, acquiring parameter information of a room where the air conditioner is located;
s20, correcting the set temperature of the air conditioner operation based on the steady-state temperature compensation value according to the room parameter information;
and S30, under the condition that the obtained corrected steady-state temperature compensation value cannot meet the requirement of a user, calling the unsteady-state temperature compensation value of the air conditioner, and further correcting the set temperature according to the room parameter information.
In step S10, the room parameter of the air conditioner may refer to a simplified schematic diagram of the installation of the air conditioner 100 in the room shown in fig. 3, the air conditioner 100 is installed on a wall on one side of the room, the vertical height of the room is high, the air conditioner 100 is installed higher than a general air conditioner, other furniture such as a bed 200 is placed in the room, and the user 300 generally moves in a certain area in the room, such as a small area in front of the bed 200, sleeps on the bed 200, and the like. Because the height of the building pattern of the room is higher than that of a common room, such as up to 3.5m or more, the height of the common room is not more than 3m, and the relative position of the air conditioner 100 is relatively high, if the user 300 selects one air conditioner 100 with small relative power, such as only one 1-match wall-mounted air conditioner 100, so that the cold air blown out of the air outlet of the air conditioner 100 reaches the area where the user 300 is located through a relatively long distance, the temperature of the cold air rises more in the process of reaching the user, such as the user 300 sets the minimum cooling temperature of 17 ℃ of the air conditioner 100, but the temperature of the area where the user 300 is located is already about 23 ℃, and therefore the requirement of the user 300 for lower cooling temperature cannot be met.
In step S20 and step S30, it is first noted that the steady-state temperature compensation value here is a temperature compensation value that is commonly used in a controller built in the air conditioner. Taking a refrigeration mode as an example, a controller of the air conditioner acquires a current indoor environment temperature T1 and a set temperature TS, and controls the compressor to operate at different frequencies according to the magnitude of a difference between T1 and TS, if the difference is positive and larger, the operating frequency of the compressor is higher, if the difference is negative, the operating frequency is several lowest gears, such as 10Hz and 20Hz, and if the difference is negative and the absolute value is larger than a certain preset value, the compressor is directly controlled to stop. After the air conditioner acquires room parameter information, such as the installation height of the air conditioner and the plane size of a room, the temperature of the TS is corrected according to a steady-state temperature compensation value, if the corrected TS is TS-delta T, such as TS-2, when the operation frequency of the compressor is controlled, the TS is judged according to the difference value of T1-TS-delta T, before relative correction, the environment temperature T1 of the room needs to be lower to meet the set requirement after correction, namely the compressor correspondingly operates at a higher frequency, so that the temperature of the room is reduced more. To meet the low temperature demands of refrigeration for the user.
When the set temperature is corrected according to the steady-state temperature compensation value, automatic adjustment is performed based on rules preset by the controller software, for example, the air conditioner performs automatic correction according to parameters such as the installation height of the air conditioner and the plane size of a room, or after calculation is performed according to the room parameters according to the preset rules of the controller software, a corrected suggested set temperature range is pushed to a user, then the user performs fine adjustment on the set temperature, when the user performs fine adjustment, the fine adjustment range is within a reduced pressure set temperature range pushed by the air conditioner, for example, in a refrigeration mode, for example, the steady-state temperature compensation value Δ T is within a range of 1-3 ℃, and then the user performs fine adjustment within the range.
However, after the air conditioner corrects the set temperature based on the steady-state temperature compensation value, if the user still cannot meet the requirement of the user, if the user still feels that the temperature of the position where the user is located is high, the non-temperature compensation value of the air conditioner is obtained when the user still needs to continuously correct the set temperature, and the set temperature of the air conditioner is continuously corrected by further combining the room parameter information. For example, in the cooling mode, the steady-state temperature compensation value Δ T is in the range of 1-3 ℃ and the non-temperature compensation value is in the range of 4-5 ℃, the TS after the continuous correction is TS-4 in combination with the room parameter information, and at this time, the air conditioner further controls the compressor to operate according to the further corrected set temperature until the temperature of the air outlet reaches the corrected set temperature. Thereby meeting the refrigeration requirement of the user at a lower temperature.
It should be noted that the unsteady temperature compensation value mentioned here is a temperature compensation value configured by an air conditioner manufacturer for each air conditioner, and with respect to the steady temperature compensation value, a user cannot directly modify or select the parameter when using the air conditioner, and needs to obtain a special modification permission of the air conditioner, for example, a maintenance worker of the air conditioner uses a super user permission, and calls the parameter based on a control APP of the air conditioner. And the unsteady temperature compensation value is adapted for each type of air conditioner, and the unsteady temperature compensation value of different air conditioners can be different. What is called unsteady state means that when the air conditioner is operated at the set temperature corrected according to the unsteady temperature compensation value, the air conditioner may be easily in an unstable state, for example, when the air conditioner is used for cooling, if the set temperature of TS-4 is operated, the temperature of the evaporator of the air conditioner may be too low, so that the low-temperature protection of the evaporator is easily generated, so that the liquid component of the refrigerant in the evaporator pipe is relatively large, and the compressor is easily damaged when the refrigerant flows into the compressor. Therefore, the temperature of the evaporator cannot be too low, and when the air conditioner judges that the temperature of the air conditioner is lower than a preset value, such as 2 ℃, according to the temperature value of the coil of the evaporator, the compressor is controlled to reduce the frequency or stop the air conditioner, so that the temperature of the evaporator is prevented from being reduced continuously. Therefore, the correction of the unsteady temperature compensation value can be carried out by the air conditioner under the condition of no necessity, for example, after a user feeds back to an air conditioner manufacturer, a maintenance worker of the air conditioner obtains the compensation value through super user permission so as to continuously correct the set temperature problem, and the special refrigeration or heating requirements of the user are met.
The above embodiment takes the cooling mode of the air conditioner as an example to correct the set temperature, and when the air conditioner operates in the heating mode, the set temperature is corrected, and the setting problem after correction is TS + Δt, for example, the steady-state temperature compensation value Δ T is generally in the range of 1-2 ℃ and the unsteady-state temperature compensation value Δ T is in the range of 2-4 ℃. If the user sets the maximum set temperature of 30 ℃, the heating temperature requirement of the user still cannot be met, at the moment, the user can start to correct the heating set temperature by controlling the APP, the APP is controlled to acquire room parameters where the air conditioner is located, then the heating set temperature is corrected based on the steady-state temperature compensation value according to the preset rule of software, and if the corrected set temperature is TS +2. After the set temperature is corrected, the user still feels that the temperature of the position is low, therefore, through the repair of the air conditioner manufacturer, the manufacturer maintenance personnel obtain the unsteady state temperature compensation value at the control APP end by opening the super user authority at the moment, and further correct the set temperature, and if the corrected set temperature is TS +3, the air supply temperature finally meets the heating temperature requirement of the user at the position of the user.
Furthermore, before the air conditioner corrects the set temperature based on the unsteady temperature compensation value, the air conditioner can also give corresponding prompt information through display equipment or control APP of the air conditioner, so that after the user is prompted that the air conditioner corrects the set temperature based on the unsteady temperature compensation value, an unstable state easily occurs during the operation of the air conditioner, if the air conditioner easily causes the low-temperature protection of an evaporator to occur during the refrigeration, the air conditioner easily causes the high-temperature protection of the evaporator to occur during the heating, and a user can know the state. Otherwise, after knowing that the air conditioner frequently has the unstable states, the user may report to the air conditioner manufacturer for repair, which wastes the repair resources of the air conditioner manufacturer and actually needs repair without the problem of the air conditioner body.
In some embodiments of the invention, the control method further comprises:
s40, acquiring the running state of the air conditioner;
and S50, further correcting the set temperature based on the unsteady temperature compensation value according to the running state of the air conditioner and the room parameter information.
The present embodiment is different from the previous embodiment in that the set temperature is further corrected based on the unsteady temperature compensation value in combination with the operation state of the air conditioner in addition to the room parameter information. The operation state of the air conditioner includes whether the air conditioner is in a state of Wen Tingji, whether the air deflector swings, whether the air blowing angle of the air deflector is a standard angle, and the like. For example, when the air conditioner is currently in a warm-up shutdown state, taking a cooling mode as an example, the set temperature of the air conditioner after correction should be lower, because the compressor of the air conditioner needs a certain interval time, such as 3 minutes, to protect the compressor due to shutdown and then startup, and the compressor cannot be started immediately at this time, the temperature of the room will rise a little, and therefore after the compressor is started, the air conditioner should output a stronger cooling capacity, that is, the compressor should operate at a higher frequency, so that the temperature of the room can be quickly reduced to the temperature required by the user.
Further, in some embodiments of the present invention, the control method further comprises:
and when the set temperature is corrected based on the unsteady temperature compensation value, correcting a corresponding fault judgment rule of the air conditioner.
In the above embodiments, the air conditioner corrects the set temperature based on the unsteady temperature compensation value, and when the air conditioner operates in the set temperature state, an unstable state is likely to occur, for example, the evaporator is likely to be protected at a low temperature in the cooling mode, and the evaporator is likely to be protected at a high temperature in the heating mode, although corresponding prompt information may be given to let the user know. However, if the air conditioner is stopped due to frequent occurrence of the protection, the user experience is still affected, and therefore, in order to minimize occurrence of the unstable state, the corresponding fault judgment rule can be corrected. If the temperature threshold of the low-temperature protection of the evaporator in the cooling mode can be slightly reduced, for example, the temperature threshold is adjusted from 2 ℃ to 1 ℃ normally, and the temperature threshold of the high-temperature protection of the evaporator in the heating mode is slightly increased, for example, 65 ℃ normally is adjusted to 66 ℃, so that the air conditioner is still in a safe and reliable operation state when the limit operation state of the air conditioner is slightly improved, but the probability of the occurrence of the protection is reduced, so that the possible frequent occurrence of the protection can not be caused, and the user experience can be improved when the air conditioner is stably operated in the cooling or heating state.
In some embodiments of the invention, when the room parameter information is further modified according to the non-steady-state temperature compensation value to the set temperature, the method further comprises:
s60, receiving modified control software of the air conditioner, wherein the control software is generated based on a cloud server connected with the air conditioner;
and S70, replacing the modified control software with the control software before modification in an online programming mode of the air conditioner.
This embodiment sets forth how to implement in the controller software of the air conditioner when modifying the set temperature based on the non-steady state temperature compensation value in accordance with the room parameter information.
In this embodiment, the air conditioner is connected to a cloud server, where the cloud server may be connected to an APP control software of a mobile terminal, such as a mobile phone, that controls the air conditioner, and when a user corrects a set temperature of the air conditioner based on an unsteady temperature compensation value through an interactive interface of the mobile phone APP, or when an APP end automatically corrects the set temperature of the air conditioner based on the unsteady temperature compensation value according to a preset rule, the cloud server connected to the APP end automatically generates a new version of the control software of the air conditioner. Compared with the old software of the air conditioner, the software can only modify the set temperature, and more times, related control programs need to be modified in a linkage mode. For example, due to modification of the set temperature, the air conditioner is easily in an unstable state, such as evaporator low-temperature protection in a cooling mode or evaporator high-temperature protection in a heating mode, in order to reduce the occurrence of the unstable state as much as possible, the air conditioner further needs to further modify software modules related to corresponding fault judgment of the air conditioner, such as an evaporator low-temperature protection judgment software module in the cooling mode and an evaporator high-temperature protection judgment software module in the heating mode of the air conditioner, so as to reduce the occurrence of the protections as much as possible, and thus the air conditioner can stably operate in the cooling or heating state, thereby improving user experience.
The new version control software generated by the cloud server is sent to the controller of the air conditioner through a network such as an external network (such as a broadband network) and an internal network (such as wifi), and after receiving the new version control software, a related MCU of the controller can refresh the old version program in the memory according to an on-line programming (OTA) mode so as to replace the old version program with the new version control software. Therefore, the software of the controller realizes the correction of the set temperature of the air conditioner based on the unsteady temperature compensation value. The correction is specific to the air conditioner used by the user, and the corresponding corrected control software of different users may be different, so that the cooling and heating requirements of the users can be met in a personalized manner. The customized function of the user is really realized, so that the user experience is really improved.
The method for correcting the set temperature of the air conditioner by the software is realized by a scheme that a new version of control software of the air conditioner is generated based on the server and then the controller software is updated based on an OTA (over the air technology) mode. In other implementation manners, the correction may also be performed through the controller software, for example, after the control software of the air conditioner receives the correction value based on the unsteady state parameter based on the APP of the user, the control software of the air conditioner directly modifies the part of the parameters of the air conditioner to implement the correction. Compared with the server-based mode of the above embodiment, the modification mode has limited depth of the modified parameters, and generally only can modify the set temperature, and further modification of the air conditioner control software module related to the set temperature is difficult to realize. The control scheme of the previous embodiment is thus preferentially selected.
The invention also provides a controller of the air conditioner, wherein the controller of the air conditioner is internally provided with a processor and related module circuits connected with the processor to control various loads of the air conditioner, such as an inner fan, a compressor, an outer fan, a four-way valve and the like, and the controller of the air conditioner also comprises various sensors connected with the processor, such as sensors for detecting the indoor environment temperature, the evaporator tube temperature, the condenser tube temperature and the outdoor environment temperature, so as to detect the temperature values. The controller is configured to: the method comprises the steps of obtaining room parameter information of the air conditioner, correcting the set temperature of the air conditioner according to the room parameter information based on a steady-state temperature compensation value, calling an unsteady-state temperature compensation value of the air conditioner under the condition that the obtained corrected steady-state temperature compensation value cannot meet the requirements of a user, and further correcting the set temperature according to the room parameter information. The control scheme for correcting the set temperature based on the unsteady state parameter is a method for correcting the interior of controller software based on a processor of the controller, and the specific control scheme can be described with reference to the method for correcting the set temperature of the air conditioner by software in the previous embodiment.
Embodiments of the present application also provide a computer program product comprising program instructions that, when executed by a controller, enable the controller to implement any of the control methods for correcting a set temperature of an air conditioner in the above embodiments.
Embodiments of the present application also provide a storage medium having computer readable instructions stored thereon, which, when executed by a controller, enable the controller to perform any of the control methods for correcting a set temperature of an air conditioner in the above embodiments.
Those skilled in the art can understand that all or part of the steps in the method for implementing the above embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a (may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description herein, references to the description of the terms "first embodiment," "second embodiment," "example," etc., mean that a particular method, apparatus, or feature described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, methods, apparatuses, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A control method for defrosting of an air conditioner, characterized by comprising:
acquiring humidity information of the place where the air conditioner is installed;
generating a steady-state temperature threshold compensation value according to the humidity information, and correcting a judgment threshold value of the condenser temperature for defrosting of the air conditioner;
and under the condition that the defrosting result of the air conditioner does not meet the requirement of a user based on the corrected coil temperature, calling an unsteady-state temperature threshold compensation value of the air conditioner to further correct the judgment threshold.
2. The control method according to claim 1, wherein the determination threshold includes a first determination threshold for comparing a current condenser temperature, and a second determination threshold for detecting a lowest condenser temperature that the air conditioner has been operated cumulatively for a preset time.
3. The control method according to claim 1, wherein the acquiring humidity information of a location where the air conditioner is installed comprises:
and determining the current humidity interval according to the change rule of the humidity of the place where the air conditioner is installed in one year.
4. The control method according to claim 3, wherein the determining the currently-belonging humidity interval further comprises:
acquiring environmental characteristic information of the place where the air conditioner is installed;
and correcting the humidity interval according to the environmental characteristic information.
5. The control method according to claim 1, wherein before further correcting the judgment threshold value according to the humidity information, a prompt message is given to remind a user of an unstable state which may occur when the air conditioner is operated with the corrected judgment threshold value.
6. The control method according to claim 1, wherein when the determination threshold is further corrected in accordance with the unsteady-state temperature threshold compensation value, the method includes:
receiving control software after the air conditioner corrects the judgment threshold, wherein the control software is generated based on a cloud server connected with the air conditioner;
and replacing the modified control software with the control software before modification in an online programming mode of the air conditioner.
7. A controller of an air conditioner, characterized in that the controller is configured to:
acquiring humidity information of the place where the air conditioner is installed;
generating a steady-state temperature threshold compensation value according to the humidity information, and correcting a judgment threshold value of the condenser temperature for defrosting of the air conditioner;
and under the condition that the defrosting result of the air conditioner does not meet the requirement of a user based on the corrected coil temperature, calling an unsteady-state temperature threshold compensation value of the air conditioner to further correct the judgment threshold.
8. A storage medium having computer-readable instructions stored thereon, wherein the computer-readable instructions, when executed by a processor, cause the processor to execute the control method for correcting an air conditioner determination threshold according to any one of claims 1 to 7.
9. A computer program characterized in that the computer program comprises program instructions that, when executed by a controller, enable the controller to implement the control method for correcting an air conditioner determination threshold value according to any one of claims 1 to 7.
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| CN202210908096.6A CN115435449A (en) | 2022-07-29 | 2022-07-29 | Control method, controller, medium, and program for defrosting of air conditioner |
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| CN202210908096.6A CN115435449A (en) | 2022-07-29 | 2022-07-29 | Control method, controller, medium, and program for defrosting of air conditioner |
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