CN113757920A - Defrosting control method and device, computer equipment and storage medium - Google Patents
Defrosting control method and device, computer equipment and storage medium Download PDFInfo
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- CN113757920A CN113757920A CN202110987472.0A CN202110987472A CN113757920A CN 113757920 A CN113757920 A CN 113757920A CN 202110987472 A CN202110987472 A CN 202110987472A CN 113757920 A CN113757920 A CN 113757920A
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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
- F24F11/61—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The application relates to a defrosting control method and device, computer equipment and a storage medium. The method comprises the following steps: determining the ending operation time of the air conditioner according to the use habits of the user; determining defrosting starting time according to the frosting rate of the air conditioner; and when the ending operation time is greater than the defrosting starting time, performing delayed defrosting control on the air conditioner. By adopting the method, the control accuracy of the defrosting process of the air conditioner can be improved, so that the heating of the indoor unit is prevented from being influenced by entering a defrosting mode in the using process of the air conditioner, and the heating comfort level of the air conditioner can be improved.
Description
Technical Field
The present application relates to the field of air conditioner control technologies, and in particular, to a defrosting control method and apparatus, a computer device, and a storage medium.
Background
With the continuous improvement of the living standard of residents, the air conditioner has gone into every family, and becomes one of the indispensable household appliances in the life of common consumers. Defrosting control of an air conditioner is always an industry bottleneck problem, and taking a heat pump air conditioner as an example, the air conditioner can influence heating of an indoor unit when an outdoor unit is defrosted, so that the indoor temperature is rapidly reduced, and the use comfort of a user is influenced. Especially for the multi-split air conditioner system, when the indoor unit of the air conditioner is fully opened, the load of the indoor unit is large, so that the outdoor unit is easy to enter a defrosting mode. At present, a defrosting control mode of an air conditioner usually enters a defrosting mode immediately to start defrosting when the defrosting condition is judged to be met, but the defrosting control mode has the problem of low accuracy, so that the heating comfort level of the air conditioner is reduced.
Disclosure of Invention
In view of the above, it is necessary to provide a defrosting control method, apparatus, computer device, and storage medium capable of improving heating comfort of an air conditioner in view of the above technical problems.
A defrosting control method, the method comprising:
determining the ending operation time of the air conditioner according to the use habits of the user;
determining defrosting starting time according to the frosting rate of the air conditioner;
and when the ending operation time is greater than the defrosting starting time, performing delayed defrosting control on the air conditioner.
In one embodiment, the determining the end operation time of the air conditioner according to the user usage habit includes:
acquiring current environment data;
acquiring historical data matched with the current environment data;
and determining the ending operation time of the air conditioner according to historical operation data in the historical data.
In one embodiment, before the determining of the defrosting start time according to the frosting rate of the air conditioner, the method further comprises:
acquiring the current environment temperature, the current environment humidity and the internal machine load of the air conditioner;
and determining the frosting rate of the air conditioner according to the current environment temperature, the current environment humidity and the internal unit load.
In one embodiment, the method further comprises:
when the ending operation time is less than or equal to the defrosting starting time, controlling the air conditioner to operate according to a first operation mode;
and in the process that the air conditioner operates according to the first operation mode, when the current time is greater than or equal to the ending operation time, controlling the air conditioner to enter a defrosting mode.
In one embodiment, the performing of the delayed defrosting control on the air conditioner when the end operation time is greater than the defrosting start time includes:
when the time difference between the operation ending time and the defrosting starting time is greater than a first preset time length and less than or equal to a second preset time length, controlling the air conditioner to operate according to a second operation mode;
and in the process that the air conditioner operates according to the second operation mode, when a defrosting condition is met, controlling the air conditioner to continuously heat until the current time is greater than or equal to the operation ending time, and controlling the air conditioner to enter a defrosting mode.
In one embodiment, the performing of the delayed defrosting control on the air conditioner when the end operation time is greater than the defrosting start time includes:
when the time difference between the operation ending time and the defrosting starting time is greater than a second preset time, controlling the air conditioner to operate according to a third operation mode;
determining the number of people in the area where each indoor unit of the air conditioner is located in the process that the air conditioner operates according to the third operation mode;
if the number of the personnel corresponding to each indoor unit is not zero, controlling the air conditioner to enter a defrosting mode when a defrosting condition is met;
if the number of the persons corresponding to at least one indoor unit is zero, pushing shutdown confirmation information to a user aiming at the indoor unit with the number of the persons being zero, and controlling the operation of the air conditioner according to feedback information corresponding to the shutdown confirmation information.
In one embodiment, the controlling the operation of the air conditioner according to the feedback information corresponding to the shutdown confirmation information includes:
and if the feedback information corresponding to the shutdown confirmation information is shutdown or empty, controlling the indoor units with the number of the corresponding persons being zero to shut down, and returning to the step of determining the defrosting starting time according to the frosting rate of the air conditioner to continue executing.
In one embodiment, the controlling the operation of the air conditioner according to the feedback information corresponding to the shutdown confirmation information includes:
and if the feedback information corresponding to the power-off confirmation information is that the air conditioner is not powered off, controlling the air conditioner to enter a defrosting mode when a defrosting condition is met.
A defrosting control apparatus, the apparatus comprising:
the first determining module is used for determining the ending running time of the air conditioner according to the use habits of a user;
the second determination module is used for determining defrosting starting time according to the frosting rate of the air conditioner;
and the control module is used for performing delay defrosting control on the air conditioner when the ending running time is greater than the defrosting starting time.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
determining the ending operation time of the air conditioner according to the use habits of the user;
determining defrosting starting time according to the frosting rate of the air conditioner;
and when the ending operation time is greater than the defrosting starting time, performing delayed defrosting control on the air conditioner.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
determining the ending operation time of the air conditioner according to the use habits of the user;
determining defrosting starting time according to the frosting rate of the air conditioner;
and when the ending operation time is greater than the defrosting starting time, performing delayed defrosting control on the air conditioner.
According to the defrosting control method, the defrosting control device, the computer equipment and the storage medium, when defrosting control is needed to be performed on the air conditioner, the ending operation time of the air conditioner is determined according to the use habit of a user, the defrosting starting time is determined according to the frosting rate of the air conditioner, the defrosting control on the air conditioner is realized by combining the ending operation time and the defrosting starting time of the air conditioner, when the ending operation time is greater than the defrosting starting time, delayed defrosting control on the air conditioner is realized, the control accuracy of the defrosting process of the air conditioner can be improved, the situation that heating of an indoor unit is influenced due to entering a defrosting mode in the using process of the air conditioner is avoided, and therefore the heating comfort level of the air conditioner can be improved.
Drawings
FIG. 1 is a diagram of an environment in which the defrosting control method is applied in one embodiment;
FIG. 2 is a schematic flow chart of a defrosting control method in one embodiment;
FIG. 3 is a schematic flow chart of a defrosting control method in another embodiment;
fig. 4 is a block diagram of a defrosting control device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The defrosting control method provided by the application can be applied to a multi-split system shown in fig. 1. The multi-split system is a system architecture corresponding to the air conditioner in one or more embodiments of the present application, and includes an outdoor unit and a plurality of indoor units, each of the indoor units is in communication connection with the outdoor unit, and a controller for implementing a defrosting control method is integrated in the outdoor unit. It is to be understood that the number of outdoor units and the number of indoor units in the multi-split system shown in fig. 1 are only examples, and are not limited to specific limitations, for example, the number of indoor units may be greater or smaller.
In one embodiment, as shown in fig. 2, a defrosting control method is provided, which is described by taking an example of the method applied to a controller integrated in an outdoor unit of fig. 1, and includes the following steps:
and step 202, determining the ending operation time of the air conditioner according to the use habits of the user.
The user usage habit is used for representing the habit of the user for using the air conditioner and is determined according to historical data of the user for using the air conditioner, and specifically can be determined according to historical operation data in historical data matched with current environmental data. The user usage habit may specifically refer to a duration of a single use of the air conditioner by the user. The ending operation time may specifically refer to an ending time of the current operation of the air conditioner, and may specifically be determined by a starting operation time and a single operation time length of the current operation of the air conditioner. The starting operation time may specifically refer to a starting time of the current operation of the air conditioner.
Specifically, the controller acquires historical data of the air conditioner used by a user, analyzes the acquired historical data to obtain the use habit of the user, and determines the single-time operation time of the air conditioner according to the use habit of the user. Further, the controller determines the ending operation time of the current operation according to the starting operation time of the current operation of the air conditioner and the determined single operation time length.
And step 204, determining the defrosting starting time according to the frosting rate of the air conditioner.
The frosting rate is used for representing the frosting speed of the air conditioner, and can be determined dynamically according to the current environment temperature and the current environment humidity of the current environment of the air conditioner, the internal unit load of the air conditioner and the like. The defrosting start time refers to the defrosting start time when the air conditioner operates according to the conventional operation mode in the secondary operation process, and the defrosting start time refers to the time when the air conditioner starts to enter the defrosting mode.
Specifically, the controller acquires the current frosting rate of the air conditioner, determines the frosting time of the current operation of the air conditioner according to the frosting rate of the air conditioner, and determines the defrosting starting time according to the running starting time and the frosting time of the current operation of the air conditioner. The frosting time period refers to the time length from the start of the operation of the air conditioner to the start of defrosting.
In one embodiment, the frosting rate of the air conditioner is inversely related to the frosting time, and the faster the frosting rate of the air conditioner is, the shorter the frosting time is, the earlier the defrosting is started, and correspondingly, the slower the frosting rate is, the longer the frosting time is, the later the defrosting is started.
And step 206, when the operation time is longer than the defrosting starting time, delaying defrosting control on the air conditioner.
Specifically, when the end operation time of the secondary operation of the air conditioner is greater than the defrosting start time, the end operation time of the air conditioner in the secondary operation is represented to be later than the defrosting start time, that is, the end operation time of the air conditioner in the secondary operation is indicated to be the defrosting start time firstly, if the air conditioner operates according to a conventional operation mode, the air conditioner enters a defrosting mode to defrost in the operation process (before the secondary operation is finished), however, the air conditioner enters the defrosting mode to defrost in the operation process to defrost to affect the heating effect of the indoor unit, and the effect of defrosting on the heating effect of the indoor unit can be reduced by delaying defrosting control of the air conditioner, so that the heating comfort of the air conditioner is improved. Therefore, when the ending operation time of the air conditioner is judged to be greater than the defrosting starting time, the controller performs delayed defrosting control on the air conditioner so as to delay the defrosting time of the air conditioner, and therefore the influence of defrosting on the heating effect of the indoor unit is reduced.
According to the defrosting control method, when defrosting control is needed to be performed on the air conditioner, the ending operation time of the air conditioner is determined according to the use habit of a user, the defrosting starting time is determined according to the frosting rate of the air conditioner, defrosting control over the air conditioner is achieved by combining the ending operation time and the defrosting starting time of the air conditioner, delayed defrosting control over the air conditioner is achieved when the ending operation time is larger than the defrosting starting time, control accuracy of a defrosting process of the air conditioner can be improved, heating of an indoor unit is prevented from being influenced due to entering a defrosting mode in the using process of the air conditioner, and therefore heating comfort of the air conditioner can be improved.
In one embodiment, step 202 comprises: acquiring current environment data; acquiring historical data matched with current environment data; and determining the ending operation time of the air conditioner according to historical operation data in the historical data.
The current environment data may specifically refer to weather data of an environment where the air conditioner is currently located, and includes, but is not limited to, current temperature data and current humidity data. The historical data is data collected and recorded in the historical operation process of the air conditioner, and specifically may include historical environmental data and historical operation data, and the historical operation data includes the single operation duration of the air conditioner in the historical operation process.
Specifically, the controller acquires current environment data corresponding to the current environment of the air conditioner, screens historical data matched with the current environment data from the historical data corresponding to the air conditioner, determines the use habits of users according to the historical operation data in the screened historical data, and determines the ending operation time of the current operation of the air conditioner according to the determined use habits of the users.
In one embodiment, the controller calculates similarities between the current environment data and historical environment data in the historical data, and filters the historical data with high similarity according to the calculated similarities to serve as the historical data matched with the current environment data. The controller can screen various historical data with the similarity greater than or equal to the similarity threshold value, and can also screen a preset number of historical data according to the sequence of the similarity from large to small, and the screened historical data is used as the historical data matched with the current environmental data. The similarity threshold value and the preset number can be customized according to actual conditions. It can be understood that the similarity is used to represent the degree of similarity between the current environmental data and the historical environmental data, and the larger the value of the similarity is, the higher the degree of similarity is represented, or the smaller the value of the similarity is, the higher the degree of similarity is represented, in this embodiment, the larger the value of the similarity is, the higher the degree of similarity is represented as an example.
In one embodiment, the controller respectively determines the single operation time length of the air conditioner in the historical operation process according to the historical operation data in the screened historical data, averages the single operation time lengths to obtain the single operation time length of the current operation of the air conditioner, and determines the ending operation time according to the starting operation time and the single operation time length of the current operation of the air conditioner.
In one embodiment, taking the example that the environmental data includes the environmental temperature, the current environmental temperature corresponds to the same collection time period as the historical environmental temperature, for example, the collection time periods are all one day. The controller divides the acquisition time period into a plurality of time blocks by taking set time length as a unit, each time block corresponds to an average environment temperature, and the similarity between the current environment temperature and the historical environment temperature is determined according to the average environment temperature of the current environment temperature and the historical environment temperature corresponding to each time block and the maximum temperature difference value of the environment temperature of the area where the air conditioner is located in the air-conditioning refrigeration or heating time period. The set time period may be 1 hour or 1 minute, and the like, and the similarity between the current ambient temperature and the historical ambient temperature may be determined by referring to the following mapping relationship.
Wherein, beta represents the numerical value of the similarity between the current environment temperature and the historical environment temperature, n represents the number of time blocks obtained by dividing in the acquisition time period, and T represents the time block numberjnAnd TinThe average ambient temperature corresponding to the current ambient temperature and the historical ambient temperature at the nth time block is respectively represented, and X represents the maximum temperature difference value of the ambient temperature of the area where the air conditioner is located within the air conditioner cooling or heating time period, and can be obtained according to weather statistical data.
In the embodiment, the user use habit is determined according to the historical operation data in the historical data matched with the current environment data, and the ending operation time of the air conditioner can be accurately determined according to the user use habit, so that the accuracy of defrosting control can be improved when the defrosting control is performed on the air conditioner according to the ending operation time with higher accuracy.
In an embodiment, before step 204, the defrosting control method further includes: acquiring the current environment temperature, the current environment humidity and the internal machine load of the air conditioner; and determining the frosting rate of the air conditioner according to the current environment temperature, the current environment humidity and the internal machine load.
The current environment temperature refers to the temperature of the environment where the air conditioner is currently located. The current environment humidity refers to the humidity of the environment where the air conditioner is currently located. The indoor unit load of the air conditioner refers to the sum of the loads of all the indoor units of the air conditioner (multi-split system) in the starting operation state in the current operation.
Specifically, the controller obtains the current environment temperature and the current environment humidity of the current environment of the air conditioner, determines the indoor unit load of the air conditioner according to the running state of each indoor unit, and dynamically determines the current frosting rate of the air conditioner according to the current environment temperature, the current environment humidity and the indoor unit load corresponding to the air conditioner.
In one embodiment, the frosting rate of the air conditioner, the current environment temperature, the current environment humidity and the internal unit load are approximately fitted into a quadratic function, so that the frosting rate of the air conditioner can be determined based on the quadratic function obtained through fitting according to the current environment temperature, the current environment humidity and the internal unit load.
In the above embodiment, the frosting rate is dynamically determined according to the current ambient temperature, the current ambient humidity and the internal unit load corresponding to the air conditioner, so that the frosting control of the air conditioner can be accurately realized based on the dynamically determined frosting rate.
In one embodiment, the above-mentioned defrosting control method further comprises: when the operation time is less than or equal to the defrosting starting time, controlling the air conditioner to operate according to a first operation mode; and in the process that the air conditioner operates according to the first operation mode, when the current time is greater than or equal to the end operation time, controlling the air conditioner to enter a defrosting mode.
The first operation mode may specifically refer to a normal operation mode of the air conditioner, in which the air conditioner operates according to a normal control logic before meeting a defrosting condition, and enters the defrosting mode to defrost when meeting the defrosting condition.
Specifically, when the end operation time of the secondary operation of the air conditioner is less than or equal to the defrosting start time, the end operation time of the secondary operation of the air conditioner is indicated to be earlier than or equal to the defrosting start time, that is, the air conditioner does not enter the defrosting mode in the secondary operation process (before the end operation), so that the heating effect of the indoor unit is not influenced by defrosting in the defrosting mode in the secondary operation process of the air conditioner, and therefore, when the operation end time of the secondary operation of the air conditioner is determined to be less than or equal to the defrosting start time, the controller determines the operation mode of the air conditioner as the first operation mode and controls the air conditioner to operate according to the first operation mode. And in the process of controlling the air conditioner to operate according to the first operation model, acquiring the current time in real time, controlling the air conditioner to enter a defrosting mode for defrosting when the current time is greater than or equal to the operation ending time, and controlling the air conditioner to be turned off when defrosting is finished so as to end the current operation of the air conditioner.
In an embodiment, after the controller controls the air conditioner to enter the defrosting mode, the controller controls the air conditioner to defrost according to an existing defrosting mode, for example, controls a fan of the indoor unit to stop operating, and controls the outdoor unit to enter the defrosting mode to start defrosting, which is not described herein again.
In the above embodiment, when the end operation time of the secondary operation of the air conditioner is earlier than or equal to the defrosting start time, the air conditioner is controlled to operate according to the normal logic, and the air conditioner is controlled to enter the defrosting mode for defrosting before the end of the operation of the air conditioner, so that the accuracy of defrosting control is improved.
In one embodiment, step 206, comprises: when the time difference between the operation ending time and the defrosting starting time is greater than a first preset time and less than or equal to a second preset time, controlling the air conditioner to operate according to a second operation mode; and in the process that the air conditioner operates according to the second operation mode, when the defrosting condition is met, controlling the air conditioner to continuously heat until the current time is more than or equal to the operation ending time, and controlling the air conditioner to enter the defrosting mode.
The first preset time and the second preset time are self-defined according to actual requirements, the first preset time is zero, for example, and the second preset time is preferably any one of [1min, 30min ]. The second operation mode may specifically be a continuous heating mode, in which the air conditioner operates according to a normal control logic before the defrosting condition is satisfied, and the air conditioner does not execute a defrosting procedure but controls the air conditioner to continuously heat when the defrosting condition is satisfied. The defrosting condition is a condition or basis for judging whether the air conditioner enters a defrosting mode to start defrosting in the normal operation mode, and may specifically include that the current time is greater than or equal to a defrosting start time. It can be understood that the defrosting condition may also be a determination condition for starting defrosting when the air conditioner enters the defrosting mode in the conventional operation mode in the prior art, and details are not described herein again.
Specifically, the controller subtracts the ending operation time and the starting defrosting time of the current operation of the air conditioner to obtain the time difference between the ending operation time and the starting defrosting time. And when the time difference is greater than the first preset time length and less than or equal to the second preset time length, the controller determines the operation mode of the air conditioner as the second operation mode and controls the air conditioner to operate according to the second operation mode. And in the process of controlling the air conditioner to operate according to the second operation mode, the controller judges whether the air conditioner meets a defrosting condition, when the defrosting condition is judged to be met, the air conditioner is controlled to continuously heat until the current time is greater than or equal to the operation time for finishing the current operation of the air conditioner, the air conditioner is controlled to enter the defrosting mode to start defrosting, and the air conditioner is controlled to be shut down when the defrosting is finished so as to finish the current operation of the air conditioner.
In one embodiment, in the process that the air conditioner operates according to the second operation mode, the controller acquires the current time in real time, when the current time is less than the defrosting start time, the air conditioner is controlled to operate according to the conventional operation mode, when the current time is greater than or equal to the defrosting start time, the valve opening of the electronic expansion valve of the air conditioner indoor unit can be adjusted to reduce the output of the indoor unit, the air conditioner indoor unit is controlled to continuously heat according to the reduced output of the indoor unit, the air conditioner can also be controlled to continuously heat according to the current output of the indoor unit, when the current time is greater than or equal to the defrosting end time, the air conditioner is controlled to enter the defrosting mode to defrost, and when the defrosting is finished, the air conditioner is controlled to shut down to end the current operation of the air conditioner.
In one embodiment, during the operation of the air conditioner according to the second operation mode, when the air conditioner meets the defrosting condition, the controller controls the superheat degree of the indoor unit by adjusting the valve opening degree of the electronic expansion valve of the indoor unit, so as to reduce the output of the indoor unit. It can be understood that the frosting rate of the air conditioner can be reduced by reducing the output of the indoor unit, so that the starting defrosting time of the next operation is delayed, and thus, defrosting is not performed but heating is continuously performed when the defrosting condition is met, the heating effect of the indoor unit can be prevented from being influenced by defrosting, and the indoor unit cannot normally heat due to the fact that the frosting amount on the heat exchanger of the outdoor unit is too much, so that the accuracy of defrosting control can be improved, and the heating comfort level of the air conditioner is improved.
In the above embodiment, if the time difference between the end operation time of the secondary operation and the defrosting start time of the air conditioner is sufficiently small, when the air conditioner meets the defrosting condition, the air conditioner is controlled not to defrost, but the air conditioner is controlled to enter the defrosting mode to defrost before the air conditioner finishes the operation, so that the accuracy of defrosting control is improved, and the heating comfort level of the air conditioner can be prevented from being influenced by defrosting.
In one embodiment, step 206, comprises: when the time difference between the operation ending time and the defrosting starting time is greater than a second preset time, controlling the air conditioner to operate according to a third operation mode; determining the number of people in the area where each indoor unit of the air conditioner is located in the process that the air conditioner operates according to the third operation mode; if the number of the personnel corresponding to each indoor unit is not zero, controlling the air conditioner to enter a defrosting mode when the defrosting condition is met; if the number of the persons corresponding to at least one indoor unit is zero, pushing shutdown confirmation information to a user aiming at the indoor unit with the number of the persons being zero, and controlling the operation of the air conditioner according to feedback information corresponding to the shutdown confirmation information.
The third operation mode may specifically be an adaptive defrosting mode, in which the controller may select, according to the number of people in the area where each indoor unit of the air conditioner is located, an indoor unit with a zero number of people in a corresponding area to be turned off first, so as to reduce the load of the indoor unit, thereby achieving an effect of delaying defrosting control, after the indoor unit with the zero number of people in the corresponding area is controlled to be turned off, recalculate the defrosting start time of the air conditioner, and based on the operation time of the air conditioner and the defrosting start time obtained by recalculation, redetermine the operation mode of the air conditioner, and control the air conditioner to operate according to the redetermined operation mode. The number of the personnel in the area where the indoor unit is located is used for representing the personnel activity condition of the area where the indoor unit is located, when the number of the personnel is zero, the personnel activity condition representing the area where the corresponding indoor unit is located is no personnel activity, namely, the corresponding indoor unit has no heating requirement, and when the number of the personnel is not zero, the personnel activity condition representing the area where the corresponding indoor unit is located is personnel activity, namely, the corresponding indoor unit has the heating requirement.
The shutdown confirmation information is information for inquiring/confirming to the user whether to control shutdown of the indoor unit currently without human activity in the corresponding area, such as "the unit will perform shutdown operation on the indoor unit 1". The feedback information is a basis for judging whether to control the shutdown of the indoor unit which does not have the heating requirement and is in the startup running state, and specifically comprises shutdown, instant defrosting, idling and the like. In the present embodiment, the second preset time period is preferably 30min (minutes).
Specifically, when it is determined that the time difference between the end operation time and the defrosting start time of the current operation of the air conditioner is greater than a second preset time, the controller determines the operation mode of the air conditioner as a third operation mode and controls the air conditioner to operate according to the third operation mode. And in the process of controlling the air conditioner to operate according to the third operation mode, the controller determines the number of people in the area where each indoor unit of the air conditioner is currently in the starting operation state. If the number of people in the area where each indoor unit is located is not zero, the fact that each indoor unit has a heating requirement currently is indicated, the controller controls the air conditioner to enter a defrosting mode to start defrosting when the air conditioner is judged to meet a defrosting condition, the defrosting starting time of the air conditioner is recalculated when defrosting is completed, the operation mode of the air conditioner is redetermined based on the running time ending and the recalculated defrosting starting time, and the air conditioner is controlled to operate according to the redetermined operation mode until the air conditioner is controlled to be shut down based on a shutdown control instruction.
If the number of people in the area where at least one indoor unit is located is zero, the fact that at least one indoor unit which does not have the heating requirement currently but is in the starting operation state exists is represented, if the indoor unit which does not have the heating requirement currently but is in the starting operation state is controlled to be shut down, the indoor unit load of the indoor unit can be effectively reduced, and therefore the receiving rate is reduced.
In one embodiment, a human sensor is integrated on each indoor unit, and the controller identifies the activity of people in the area where the corresponding indoor unit is located through each human sensor to obtain the number of people in the area where the corresponding indoor unit is located. Specifically, the controller may label the person activity status of the indoor unit 1 having person activity in the corresponding area as a11, label the person activity status of the indoor unit 1 having no person activity in the corresponding area as a10, and so on to obtain the person activity status of each indoor unit.
In an embodiment, for an indoor unit in a corresponding area without human activity but in a power-on operation state, the controller determines that the indoor unit can preferentially perform a power-off operation, taking the indoor unit 1 as an example, the operation control condition of the indoor unit 1 may be labeled as B10, and for an indoor unit in a corresponding area with human activity and in a power-on operation state, the controller determines that the indoor unit performs a normal operation, the operation control condition of the indoor unit 1 may be labeled as B11, and so on to obtain the operation control condition of each indoor unit.
In the above embodiment, if the time difference between the end operation time and the start defrosting time of the secondary operation of the air conditioner is large, when each indoor unit has heating needs and meets the defrosting condition, the air conditioner is controlled to enter the defrosting mode to defrost, so that the situation that the indoor units cannot normally supply heat due to excessive frosting amount on the heat exchanger of the outdoor unit is avoided, when at least one indoor unit without heating needs exists, shutdown confirmation information is pushed to a user, the operation of the air conditioner is controlled according to corresponding feedback information, and delayed defrosting control of the air conditioner is accurately achieved.
In one embodiment, controlling the operation of the air conditioner according to the feedback information corresponding to the shutdown confirmation information includes: and if the feedback information corresponding to the shutdown confirmation information is shutdown or empty, controlling the indoor unit with the number of corresponding personnel being zero to shut down, and returning to the step of determining the defrosting starting time according to the frosting rate of the air conditioner to continue executing.
Specifically, if the feedback information corresponding to the shutdown confirmation information is shutdown or empty, the controller controls the indoor unit with the number of people being zero in the corresponding area to shutdown, that is, controls the indoor unit without the heating requirement but in the startup operation state to shutdown, recalculates the defrosting start time of the air conditioner according to the current defrosting rate of the air conditioner, re-determines the operation mode of the air conditioner based on the end operation time and the recalculated defrosting start time, and controls the air conditioner to operate according to the re-determined operation mode until the shutdown control instruction controls the air conditioner to shutdown. It is understood that the current frosting rate of the air conditioner is recalculated based on the current corresponding ambient temperature, current ambient humidity and internal machine load of the air conditioner.
In one embodiment, the controller starts a timer to start timing after pushing the shutdown confirmation information, and determines that the feedback information is empty when the feedback information fed back by the shutdown confirmation information is not received within a third preset time period of the timer. And the third preset time length can be defined by users.
In one embodiment, in the process of controlling the air conditioner to operate according to the third operation mode, after controlling the indoor unit which does not have the refrigeration demand and is in the on-state operation state at present, based on the end operation time of the air conditioner and the newly determined defrosting start time, it is determined that the air conditioner still meets the third operation mode, the controller may control the stopped indoor unit to execute the refrigeration mode and control the outdoor unit to execute the heating mode for defrosting, or control the stopped indoor unit to be still in the off state and push off confirmation information to the user for the indoor unit which needs the refrigeration demand and is in the on-state operation state at present, so as to control the operation of the air conditioner according to the feedback information corresponding to the off confirmation information.
In one embodiment, if the feedback information corresponding to the shutdown confirmation information is immediate defrosting, the controller controls the air conditioner to enter a defrosting mode to start defrosting, recalculates the defrosting start time of the air conditioner when defrosting is completed, re-determines the operation mode of the air conditioner based on the end operation time and the recalculated defrosting start time, and controls the air conditioner to operate according to the re-determined operation mode until the air conditioner is controlled to be shut down based on the shutdown control instruction.
In the above embodiment, for the indoor unit which does not have the refrigeration demand but is in the on-state operation state, if the user instructs to turn off or the user does not instruct, the load of the indoor unit is reduced by controlling the turning off of the indoor unit, so as to reduce the frosting rate, thereby achieving the effect of delaying defrosting.
In one embodiment, controlling the operation of the air conditioner according to the feedback information corresponding to the shutdown confirmation information includes: and if the feedback information corresponding to the shutdown confirmation information is that the air conditioner is not shut down, controlling the air conditioner to enter a defrosting mode when the defrosting condition is met.
Specifically, if the feedback information corresponding to the shutdown confirmation information is that the air conditioner is not shut down, the controller controls each indoor unit to operate according to a normal control logic, when the air conditioner is judged to meet a defrosting condition, the air conditioner is controlled to enter a defrosting mode to start defrosting, the defrosting start time of the air conditioner is recalculated when defrosting is completed, the recalculated defrosting start time is the time when the air conditioner enters the defrosting mode next time in a conventional operation mode, the operation mode of the air conditioner is redetermined based on the end operation time and the recalculated defrosting start time, and the air conditioner is controlled to operate according to the redetermined operation mode until the shutdown control instruction is used for controlling the shutdown of the air conditioner.
In the above embodiment, for the indoor unit which does not have the refrigeration demand but is in the on-state operation state, if the user indicates not to turn off the air conditioner, the air conditioner is controlled to enter the defrosting mode to defrost when the defrosting condition is met, so that the situation that the indoor unit cannot normally supply heat due to excessive frosting on the heat exchanger of the outdoor unit is avoided.
Fig. 3 is a schematic flow chart of a defrosting control method provided in an embodiment, where the defrosting control method specifically includes the following steps: analyzing the use habits of users based on big data, determining that the users end the use of the air conditioner after T1 (single operation time length) based on the use habits of the users, determining a frosting rate based on the current ambient temperature, the current ambient humidity and the internal unit load of the indoor unit, determining that the air conditioner enters a defrosting mode to start defrosting after T2 (frosting time length) according to the frosting rate, collecting the personnel activity condition of the area where the indoor unit is located through a human detection sensor arranged on the indoor unit, determining the operation mode of the air conditioner according to T1, T2 and the personnel activity condition of each indoor unit, and controlling the air conditioner to operate according to the determined operation mode, wherein the selectable operation modes comprise a conventional mode (default mode), a continuous heating mode and an adaptive defrosting mode.
In the above embodiment, for an air conditioner of a multi-split air conditioner, based on big data, a user usage habit is analyzed to determine a single operation time of the air conditioner, that is, an end operation time of the current operation of the air conditioner is determined, a current usage scenario/a frosting rate in a current operation mode is determined according to a current ambient temperature, a current ambient humidity and an indoor unit load of an indoor unit, so as to determine a frosting time of the air conditioner, that is, a starting defrosting time of the current operation of the air conditioner is determined, and a defrosting control of the air conditioner is realized according to the single operation time and the frosting time, so that, by learning the user usage habit and combining the current usage scenario, an operation mode of the air conditioner is dynamically determined and is operated according to the determined operation mode, or the determined operation mode is pushed to the user for the user to select, so as to realize an defrosting non-control or a delay control of the user in the air conditioner usage process, therefore, the heating comfort level of the air conditioner can be improved, namely the use comfort level of a user is improved.
It should be understood that although the steps in the flowcharts of fig. 2 and 3 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 2 and 3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternatively with other steps or at least a portion of the other steps or stages.
In one embodiment, as shown in fig. 4, there is provided a defrosting control apparatus 400 including: a first determining module 401, a second determining module 402, and a control module 403, wherein:
a first determining module 401, configured to determine an end operation time of the air conditioner according to a user's usage habit;
a second determining module 402, configured to determine a defrosting start time according to a frosting rate of the air conditioner;
and the control module 403 is used for performing delayed defrosting control on the air conditioner when the ending operation time is greater than the defrosting starting time.
In one embodiment, the first determining module 401 is further configured to obtain current environment data; acquiring historical data matched with current environment data; and determining the ending operation time of the air conditioner according to historical operation data in the historical data.
In one embodiment, the second determining module 402 is further configured to obtain a current ambient temperature, a current ambient humidity, and an internal unit load of the air conditioner; and determining the frosting rate of the air conditioner according to the current environment temperature, the current environment humidity and the internal machine load.
In one embodiment, the control module 403 is further configured to control the air conditioner to operate in the first operation mode when the end operation time is less than or equal to the defrosting start time; and in the process that the air conditioner operates according to the first operation mode, when the current time is greater than or equal to the end operation time, controlling the air conditioner to enter a defrosting mode.
In one embodiment, the control module 403 is further configured to control the air conditioner to operate according to a second operation mode when a time difference between the end operation time and the defrosting start time is greater than a first preset time period and less than or equal to a second preset time period; and in the process that the air conditioner operates according to the second operation mode, when the defrosting condition is met, controlling the air conditioner to continuously heat until the current time is more than or equal to the operation ending time, and controlling the air conditioner to enter the defrosting mode.
In one embodiment, the control module 403 is further configured to control the air conditioner to operate according to a third operation mode when a time difference between the end operation time and the defrosting start time is greater than a second preset time; determining the number of people in the area where each indoor unit of the air conditioner is located in the process that the air conditioner operates according to the third operation mode; if the number of the personnel corresponding to each indoor unit is not zero, controlling the air conditioner to enter a defrosting mode when the defrosting condition is met; if the number of the persons corresponding to at least one indoor unit is zero, pushing shutdown confirmation information to a user aiming at the indoor unit with the number of the persons being zero, and controlling the operation of the air conditioner according to feedback information corresponding to the shutdown confirmation information.
In an embodiment, the control module 403 is further configured to, if the feedback information corresponding to the shutdown confirmation information is shutdown or empty, control the indoor unit with the number of corresponding people being zero to shutdown, and return to the step of determining the defrosting start time according to the frosting rate of the air conditioner to continue executing.
In an embodiment, the control module 403 is further configured to control the air conditioner to enter the defrosting mode when the defrosting condition is met if the feedback information corresponding to the shutdown confirmation information indicates that the air conditioner is not shutdown.
For specific limitations of the defrosting control device, reference may be made to the above limitations of the defrosting control method, which are not described herein again. All or part of each module in the defrosting control device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided comprising a memory having a computer program stored therein and a processor that implements the steps of the method embodiments when the processor executes the computer program.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the respective method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A defrosting control method characterized in that the method comprises:
determining the ending operation time of the air conditioner according to the use habits of the user;
determining defrosting starting time according to the frosting rate of the air conditioner;
and when the ending operation time is greater than the defrosting starting time, performing delayed defrosting control on the air conditioner.
2. The method of claim 1, wherein the determining the end operation time of the air conditioner according to the user's usage habits comprises:
acquiring current environment data;
acquiring historical data matched with the current environment data;
and determining the ending operation time of the air conditioner according to historical operation data in the historical data.
3. The method of claim 1, wherein before determining the defrosting start time according to a frosting rate of the air conditioner, the method further comprises:
acquiring the current environment temperature, the current environment humidity and the internal machine load of the air conditioner;
and determining the frosting rate of the air conditioner according to the current environment temperature, the current environment humidity and the internal unit load.
4. The method of claim 1, further comprising:
when the ending operation time is less than or equal to the defrosting starting time, controlling the air conditioner to operate according to a first operation mode;
and in the process that the air conditioner operates according to the first operation mode, when the current time is greater than or equal to the ending operation time, controlling the air conditioner to enter a defrosting mode.
5. The method according to any one of claims 1 to 4, wherein the delaying defrosting control of the air conditioner when the end operation time is greater than the start defrosting time comprises:
when the time difference between the operation ending time and the defrosting starting time is greater than a first preset time length and less than or equal to a second preset time length, controlling the air conditioner to operate according to a second operation mode;
and in the process that the air conditioner operates according to the second operation mode, when a defrosting condition is met, controlling the air conditioner to continuously heat until the current time is greater than or equal to the operation ending time, and controlling the air conditioner to enter a defrosting mode.
6. The method according to any one of claims 1 to 4, wherein the delaying defrosting control of the air conditioner when the end operation time is greater than the start defrosting time comprises:
when the time difference between the operation ending time and the defrosting starting time is greater than a second preset time, controlling the air conditioner to operate according to a third operation mode;
determining the number of people in the area where each indoor unit of the air conditioner is located in the process that the air conditioner operates according to the third operation mode;
if the number of the personnel corresponding to each indoor unit is not zero, controlling the air conditioner to enter a defrosting mode when a defrosting condition is met;
if the number of the persons corresponding to at least one indoor unit is zero, pushing shutdown confirmation information to a user aiming at the indoor unit with the number of the persons being zero, and controlling the operation of the air conditioner according to feedback information corresponding to the shutdown confirmation information.
7. The method according to claim 6, wherein the controlling the operation of the air conditioner according to the feedback information corresponding to the shutdown confirmation information comprises:
and if the feedback information corresponding to the shutdown confirmation information is shutdown or empty, controlling the indoor units with the number of the corresponding persons being zero to shut down, and returning to the step of determining the defrosting starting time according to the frosting rate of the air conditioner to continue executing.
8. The method according to claim 6, wherein the controlling the operation of the air conditioner according to the feedback information corresponding to the shutdown confirmation information comprises:
and if the feedback information corresponding to the power-off confirmation information is that the air conditioner is not powered off, controlling the air conditioner to enter a defrosting mode when a defrosting condition is met.
9. A defrosting control apparatus characterized in that the apparatus comprises:
the first determining module is used for determining the ending running time of the air conditioner according to the use habits of a user;
the second determination module is used for determining defrosting starting time according to the frosting rate of the air conditioner;
and the control module is used for performing delay defrosting control on the air conditioner when the ending running time is greater than the defrosting starting time.
10. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 8.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 8.
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