CN112032954A - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
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- CN112032954A CN112032954A CN201910483201.4A CN201910483201A CN112032954A CN 112032954 A CN112032954 A CN 112032954A CN 201910483201 A CN201910483201 A CN 201910483201A CN 112032954 A CN112032954 A CN 112032954A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioner. The invention aims to solve the problem of energy waste caused by inaccurate estimation of the preset starting time of the conventional air conditioner. To this end, the air conditioner of the present invention includes a compressor, a throttling element, an outdoor heat exchanger and an outdoor fan, an indoor heat exchanger and an indoor fan, and a control method includes: acquiring a preset starting time and an outdoor environment temperature of the air conditioner; correcting the preset starting-up time based on the time correction parameter; determining the heat storage time of the air conditioner based on the outdoor environment temperature; calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time; and controlling the air conditioner to operate in the heat storage mode when the heat storage starting time is reached. The control method of the air conditioner can correct the preset starting time based on the time correction parameter and determine the heat storage time based on the outdoor environment temperature, thereby improving the accuracy of time estimation and reducing energy waste.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioner.
Background
When the air conditioner is started in cold winter, because the indoor and outdoor temperature is low, the air blown out after the air conditioner is started is cold air, the user experience is seriously influenced, and therefore, the existing air conditioner is started and provided with a cold air prevention mode. When the cold air prevention mode is started, the compressor and the outdoor fan are controlled to be started to store heat, and the indoor fan is controlled to operate after the temperature rises, so that the condition that cold air is blown out when the air conditioner is started is avoided. However, in practical applications, the waiting time of the air conditioner is long due to the operation of the cold air prevention mode within a few minutes after the air conditioner is started, which brings a problem feeling to users, and causes discontent and complaints of the users.
In order to solve the above problems, the prior art has a solution: the effect of immediately discharging hot air when the air conditioner is started is achieved by firstly acquiring the preset starting time of the air conditioner in the shutdown state of the air conditioner and then firstly controlling the compressor to store heat for the coil pipe of the indoor unit before the preset starting time comes. Although the technical scheme solves the problem that the cold air prevention mode needs waiting to a certain extent and realizes the effect of hot air outlet when the machine is started, the following problems inevitably exist: the preset startup time is usually obtained by user setting or large data platform statistical calculation, and the actual startup time of the user has deviation from the preset startup time, and the existence of the deviation causes insufficient or overlong heat storage time of the compressor, which causes energy waste.
Accordingly, there is a need in the art for a new control method of an air conditioner to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem of energy waste caused by inaccurate estimation of the preset startup time of the existing air conditioner, the present invention provides a control method of an air conditioner, wherein the air conditioner comprises a compressor, a throttling element, an outdoor heat exchanger, an outdoor fan, an indoor heat exchanger and an indoor fan, and the control method comprises:
acquiring a preset starting time and an outdoor environment temperature of the air conditioner;
correcting the preset starting-up time based on the time correction parameter;
determining a heat storage time of the air conditioner based on the outdoor ambient temperature;
calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time;
and controlling the air conditioner to operate in a heat storage mode when the heat storage starting time is reached.
In a preferred embodiment of the control method of the air conditioner, the time correction parameter is determined when the air conditioner operates last time.
In a preferred technical solution of the control method of the air conditioner, the time correction parameter is determined based on a preset startup time and a historical actual startup time within a set number of days.
In a preferred embodiment of the control method of the air conditioner, the step of determining the time correction parameter based on a preset startup time and a historical actual startup time within a set number of days further includes:
acquiring historical preset starting-up time and historical actual starting-up time within the set number of days;
calculating the average value of the historical preset starting-up time and the average value of the historical actual starting-up time;
calculating a first difference value between the average value of the historical actual starting-up time and the average value of the historical preset starting-up time;
and determining the first difference as a corrected time correction parameter.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "determining a heat storage time of the air conditioner based on the outdoor ambient temperature" further includes:
and determining or calculating the heat storage time based on the corresponding relation or a fitting formula between the outdoor environment temperature and the heat storage time.
In a preferred embodiment of the control method of the air conditioner, the step of "correcting the preset starting time based on the time correction parameter" further includes:
and calculating the sum of the preset starting-up time and the time correction parameter.
In a preferred technical solution of the control method of the air conditioner, the step of "obtaining a preset starting time of the air conditioner" further includes:
acquiring a preset starting moment set by a user; or
Acquiring historical actual starting time of the air conditioner within set days;
and estimating the preset starting-up time based on the historical actual starting-up time.
In a preferred embodiment of the above method for controlling an air conditioner, after the step of "controlling the air conditioner to operate in the heat storage mode", the method further includes:
and when receiving a starting instruction, controlling the air conditioner to start and operate a heating mode.
In a preferred embodiment of the above method for controlling an air conditioner, the method further includes:
when a starting-up instruction is received, recording the current actual starting-up time;
and selectively adjusting the time correction parameter based on the current actual starting time so as to correct the preset starting time when the air conditioner operates next time.
In a preferred embodiment of the control method of the air conditioner, the step of "selectively adjusting the time correction parameter based on the current actual startup time" further includes:
calculating a second difference value between the current actual starting-up time and the preset starting-up time;
judging the size of the second difference value and a preset threshold value;
and when the second difference is smaller than the preset threshold, adjusting the time correction parameter based on the current actual starting-up time.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, an air conditioner includes a compressor, a throttling element, an outdoor heat exchanger and an outdoor fan, and an indoor heat exchanger and an indoor fan, and a control method includes: acquiring a preset starting time of the air conditioner; correcting the preset starting-up time based on the time correction parameter; calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the preset heat storage time; and controlling the air conditioner to operate in the heat storage mode when the heat storage starting time is reached.
Through the control mode, the control method of the air conditioner can correct the preset starting time based on the time correction parameter and determine the heat storage time based on the outdoor environment temperature, so that the accuracy of time estimation is improved, and the energy waste is reduced. Specifically, the preset starting-up time is corrected based on the time correction parameter, and the control method can correct the preset starting-up time based on the starting-up habit of the user, so that the corrected preset starting-up time is closer to the real starting-up time of the user, heat storage is carried out on the air conditioner based on the corrected preset starting-up time, energy waste caused by insufficient heat storage time or overlong heat storage time can be avoided, accurate and personalized treatment for a single user is achieved, and user experience is improved. The heat storage time of the air conditioner is determined based on the outdoor environment temperature, so that the heat storage time is corrected based on the outdoor environment temperature, the accuracy of the heat storage time is further ensured, and the energy is prevented from being wasted.
Furthermore, by carrying out statistical calculation on the historical preset starting-up time and the historical actual starting-up time within the set number of days, calculating a first difference value between the average value of the preset starting-up time and the average value of the historical actual starting-up time within the set number of days, and taking the first difference value as a time correction parameter, the control method can calculate and determine the time correction parameter by using the use habit of the user on the air conditioner in the latest period of time, so that the preset starting-up time corrected by the time correction parameter is closer to the real starting-up time of the user in the latest period of time.
Furthermore, the heat storage time is determined based on the corresponding relation or the fitting formula between the outdoor environment temperature and the heat storage time, so that the heat storage time can be accurately corrected based on the outdoor environment temperature, and the heat storage effect of the air conditioner is improved.
Furthermore, the air conditioner can adjust the time correction parameter in time by recording the current actual starting time and selectively adjusting the time correction parameter based on the current actual starting time, so that the precision of the adjusted time correction parameter is effectively ensured.
Furthermore, by calculating a second difference value between the current actual starting-up time and the preset starting-up time and not adjusting the time correction parameter when the second difference value is greater than or equal to the preset threshold value, the control method effectively eliminates extremely special conditions which do not conform to the use habit of the user when adjusting the time correction parameter, such as the fact that the actual starting-up time of the user is greatly earlier than or greatly later than the preset starting-up time due to special conditions, so that the adjustment of the time correction parameter is ensured to be more in line with the conventional use habit of the user, and the influence of the special conditions on the adjustment of the time correction parameter is reduced.
Drawings
A control method of an air conditioner of the present invention is described below with reference to the accompanying drawings. In the drawings:
fig. 1 is a flowchart of a control method of an air conditioner in a first embodiment of the present invention;
fig. 2 is a logic diagram of a control method of an air conditioner in a first embodiment of the present invention;
fig. 3 is a flowchart of a control method of an air conditioner in a second embodiment of the present invention;
fig. 4 is a logic diagram of a control method of an air conditioner in a second embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the control method in the following embodiments is described with reference to statistical calculation of the cloud server, the implementation subject of the control method is not constant, and those skilled in the art can adjust the control method so that it is applied to a more specific application scenario. For example, the present control method may be stored in the form of a computer program in the controller of the air conditioner and executed by the controller.
Example 1
First, a control method of an air conditioner according to a first embodiment of the present invention will be described with reference to fig. 1 and 2. Fig. 1 is a flowchart illustrating a method for controlling an air conditioner according to a first embodiment of the present invention; fig. 2 is a logic diagram of a control method of an air conditioner in a first embodiment of the present invention.
As shown in fig. 1, in order to solve the problem of energy waste caused by inaccurate estimation of the preset startup time of the conventional air conditioner, the air conditioner of the present invention includes a compressor, a throttling element, an outdoor heat exchanger, an outdoor fan, an indoor heat exchanger, and an indoor fan. The control method of the air conditioner mainly comprises the following steps:
s101, acquiring a preset starting time of the air conditioner; the preset starting time in this embodiment may be a starting time actively set by a user, or a starting time statistically obtained based on a historical starting time of the air conditioner. For example, the preset starting time may be a starting time set by a user through a remote controller, a mobile phone APP, or a starting time obtained by a controller of the air conditioner or a cloud server through statistics according to a historical actual starting time of the air conditioner, for example, an average value of historical actual starting times obtained through statistical calculation of the historical actual starting time of the air conditioner by using statistical methods, probability theory calculation, and other methods is used as the preset starting time of the air conditioner. The following explains the control method by taking the cloud server as an example to perform statistical calculation.
S102, correcting the preset starting-up time based on the time correction parameter; the time correction parameter is used to represent a corresponding relationship between the preset startup time and the actual startup time, that is, a deviation between the preset startup time and the actual startup time, which is set or calculated by a user. After the preset starting time is set by a user or calculated by the air conditioner, the starting time is corrected based on the time correction parameter, and if the preset starting time is corrected by increasing or decreasing a time period on the basis of the determined preset starting time, the corrected preset starting time can be closer to the real starting time of the user. For example, if the preset power-on time is 18:00 and the time correction parameter is +10min, the corrected preset power-on time is 18:00+10min, which is 18: 10.
S103, calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the preset heat storage time; after the preset startup time is corrected, the startup time of the heat storage mode may be determined based on the heat storage time. For example, if the preset heat accumulation time of the air conditioner is 5min, the heat accumulation starting time is 18:05 when the preset startup time is 18: 10.
And S104, controlling the air conditioner to operate in a heat storage mode when the heat storage starting time is reached. For example, after the cloud server calculates the heat accumulation starting time, when the time comes to 18:05, the cloud server sends a heat accumulation starting instruction to the air conditioner, so that the controller of the air conditioner controls the compressor and the outdoor fan to start and operate, heat is accumulated on the indoor coil, and the indoor fan is kept closed to prevent cold air from being blown out indoors. And then when the time comes to 18:10, the air conditioner is automatically started or a user actively starts the air conditioner, and the air outlet of the air conditioner is hot air because the temperature of the indoor coil pipe is adjusted to be proper, so that the indoor temperature can be quickly adjusted to be proper.
According to the control method of the air conditioner, the preset starting time can be corrected based on the time correction parameter, and the accuracy of time estimation is improved. Specifically, the preset starting-up time is corrected based on the time correction parameter, and the control method can correct the preset starting-up time based on the starting-up habit of the user, so that the corrected preset starting-up time is closer to the real starting-up time of the user, heat storage is carried out on the air conditioner based on the corrected preset starting-up time, energy waste caused by insufficient heat storage time or overlong heat storage time can be avoided, accurate and personalized treatment for a single user is achieved, and user experience is improved.
The control method of the air conditioner of the present invention will be described in detail with continued reference to fig. 1 and 2.
In a preferred embodiment, the time correction parameter is determined during the last operation of the air conditioner. Specifically, when the air conditioner receives a startup instruction for operation last time, if the air conditioner receives the startup instruction and operates in a heating mode in the same time period of the previous day or the same time period of the previous days, the current actual startup time is recorded first, then the historical preset startup time and the historical actual startup time in the set days before (including this time) this time are counted, and the average value of the historical preset startup time and the average value of the historical actual startup time in the set days are calculated respectively. And then calculating a first difference value between the average value of the historical actual starting-up time and the average value of the historical preset starting-up time, and storing the first difference value as a time correction parameter for the next correction of the preset starting-up time.
For example, the cloud server counts historical preset starting-up time and historical actual starting-up time of the air conditioner in the same period (e.g., 18:00-19:00) of the past 7 days including this time, and calculates a mean value of all historical preset starting-up time and a mean value of all historical actual starting-up time, if the mean value of the historical preset starting-up time is calculated to be 18:30 and the mean value of the historical actual starting-up time is calculated to be 18:40, then the first difference is equal to 18:40-18: 30-10 min, that is, the time correction parameter is 10min, that is, in the past 7 days, the actual starting-up time of the user is 10min later than the preset starting-up time on average. Therefore, when the preset starting-up time is estimated next time, the sum of the estimated preset starting-up time and the time correction parameter is calculated to serve as the corrected preset starting-up time, so that the estimation accuracy of the preset starting-up time is improved, the calculation accuracy of the heat storage starting time of the heat storage mode is further improved, the energy waste is reduced, and the user experience is improved. Of course, the time correction parameter in the above example is described as a positive number, and the same holds true for the present control method if the time correction parameter obtained is a negative number. If the time correction parameter is-10 min, the actual starting time of the user in the past 7 days is 10min earlier than the preset starting time on average, and therefore when the preset starting time is estimated next time, the estimation accuracy of the preset starting time can be improved by calculating the sum of the preset starting time and the time correction parameter, namely subtracting 10min from the preset starting time to serve as the corrected preset starting time.
Similarly, when the power-on operation is in the heating mode, a new time correction parameter can be obtained by recording the preset power-on time and the current actual power-on time and combining the data 7 days before the power-on, so that the preset power-on time can be corrected for use next time. That is to say, each time the air conditioner receives a starting instruction to perform heating operation, the time correction parameter is calculated and adjusted based on the acquired current actual starting time and the data in the past set days.
In a more preferred embodiment, before adjusting the time correction parameter, it may be determined that the time correction parameter is not to be adjusted based on a comparison result between a second difference between the current actual startup time of the current startup and the current preset startup time and a preset threshold. Specifically, when a starting-up instruction is received, the current actual starting-up time is recorded; calculating a second difference value between the current actual starting-up time and the current preset starting-up time; judging the size of the second difference value and a preset threshold value; when the second difference is smaller than the preset threshold value, adjusting the time correction parameter; otherwise, the time correction parameter is not adjusted, but the last time correction parameter is used.
For example, the preset threshold may be 20min, when the air conditioner receives a start-up instruction and performs heating operation this time, the current actual start-up time is recorded to be 17:00, the preset start-up time is 18:00, the difference between the two is 60min, and the difference is much larger than the preset threshold of 20min, which indicates that the actual start-up time of the user at this time belongs to a special situation, and the user may return home in advance due to a request for leave or other reasons, so that the current actual start-up time at this time is not suitable for being used as adjustment of the time correction parameter, so as to prevent the situation that the time correction parameter adjusted based on the actual start-up time at this time deviates from the actual habit of the user instead. On the contrary, if the difference between the preset startup time and the current actual startup time is within 20min or further within 10min, it is proved that the data can be used for adjusting the time correction parameter, so as to ensure the adjustment precision of the time correction parameter and avoid the waste of energy during heat storage.
Referring to fig. 2, an operation of the air conditioner in one possible embodiment will be described.
As shown in fig. 2, in a possible operation process of the air conditioner, the cloud server firstly obtains a preset startup time based on the historical actual startup time of the air conditioner through statistics, then the cloud server corrects the preset startup time based on the time correction parameter to obtain a corrected preset startup time → calculates a heat storage start time based on the corrected preset startup time and a preset heat storage time, the cloud server issues a command to start heat storage when the heat storage start time is reached, the air conditioner is controlled to operate in the heat storage mode → operates in the heat storage mode for a period of time, then a user startup command is received, the air conditioner is started up to operate in the heating mode, and the current actual startup time is recorded → the cloud server judges whether a second difference between the current actual startup time and the current preset startup time is smaller than a preset threshold → when the second difference is smaller than the preset threshold, adjusting the time correction parameter based on historical actual starting-up time and historical preset starting-up time of the last 7 days, and storing the adjusted time correction parameter so as to correct the preset starting-up time next time; and when the second difference is larger than or equal to the preset threshold, directly storing the last time correction parameter without any adjustment.
It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the setting manner described above, so that the present invention can be applied to more specific application scenarios.
For example, in an alternative embodiment, the timing of determining the time correction parameter may be adjusted as long as the adjusted time satisfies a condition before the preset startup time is corrected this time. For example, the time correction parameter may also be determined before the preset boot time is obtained, and the like.
For another example, in another alternative embodiment, the determination of the time correction parameter is not constant, and the person skilled in the art can adjust the calculation process so that the calculated result can be more accurate. For example, in the calculation process, the historical preset starting-up time and the historical actual starting-up time may be determined in a manner of weighted average or the like instead of calculating the average value of the historical preset starting-up time and the historical pilot starting-up time.
For another example, in another alternative embodiment, the timing of adjusting the time correction parameter may be adjusted after each time the power-on command is received, and the process of determining the magnitude between the second difference and the preset threshold is omitted, and such a process is not deviated from the concept of the present invention.
As another example, in another alternative embodiment, the specific values of the set number of days, the time correction parameter, the preset power-on time, and the actual power-on time are only used as an illustrative example, and are not intended to limit the scope of the present invention, and a person skilled in the art may adjust the values without departing from the principles of the present control method.
Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.
Example 2
A second embodiment of the present invention will be briefly described with reference to fig. 3 and 4. Fig. 3 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention; fig. 4 is a logic diagram of a control method of an air conditioner in a second embodiment of the present invention.
As shown in fig. 3 and 4, in a possible embodiment, the control method may further include the following steps:
s201, acquiring a preset starting time and an outdoor environment temperature of the air conditioner;
s202, correcting the preset starting-up time based on the time correction parameter;
s203, determining the heat storage time of the air conditioner based on the outdoor environment temperature;
s204, calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time;
and S205, controlling the air conditioner to operate in the heat storage mode when the heat storage starting time is reached.
The main differences between this embodiment and example 1 are: the determination method of the heat accumulation time is adjusted. Specifically, the method includes the steps of firstly, acquiring the outdoor environment temperature of the position where the air conditioner is located while, before or after acquiring the preset starting time of the air conditioner, for example, acquiring the outdoor environment temperature through a temperature sensor and the like arranged on an outdoor unit; then, determining heat storage time based on the outdoor environment temperature, and if the outdoor environment temperature is determined, calculating the heat storage time matched with the outdoor environment temperature by the cloud server based on the outdoor environment temperature; then calculating the heat storage starting moment of the air conditioner based on the corrected preset starting time and heat storage time; and finally, calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time.
Preferably, the heat accumulation time may be calculated based on a fitting formula between the outdoor ambient temperature and the heat accumulation time. For example, the heat storage time is calculated using the following formula (1):
t＝k×Tao+b (1)
in formula (1), t represents the heat accumulation time, Tao is the outdoor ambient temperature, and k and b are constants that can be fit based on experimental data. For example, the heat accumulation time of the compressor is tested several times for different outdoor ambient temperatures. In multiple experiments, the air conditioner air outlet temperature when the air conditioner enters a normal operation state is set to be the same target temperature, the compressor is enabled to operate at the same heat storage frequency, the heat storage time required by the compressor when the air conditioner air outlet temperature reaches the same target temperature and different outdoor environment temperatures is judged, and therefore the linear relation between the heat storage time of the compressor and the outdoor environment temperature is established.
Of course, the determination of the heat storage time may also be performed based on other relationships between the outdoor ambient temperature and the heat storage time, such as the fixed corresponding relationship between the outdoor ambient temperature and the heat storage time. If a comparison table of the outdoor environment temperature and the heat storage time is determined based on the heat storage test, the comparison table is stored in the air conditioner, and the heat storage time corresponding to the outdoor environment temperature can be determined by using the comparison table.
The setting mode has the advantages that: because different outdoor environment temperatures have great influence on the heat storage capacity of the air conditioner, the heat storage time is determined by utilizing a fitting formula or a corresponding relation between the outdoor environment temperature and the heat storage time, the accuracy of the heat storage time can be further ensured on the basis of ensuring the accuracy of the actual starting time, and the energy is prevented from being excessively wasted.
Referring to fig. 4, an operation of the air conditioner in a possible embodiment will be described.
As shown in fig. 4, in a possible operation process of the air conditioner, the cloud server firstly obtains a preset startup time based on the historical actual startup time of the air conditioner through statistics, corrects the predicted startup time based on the time correction parameter by the cloud server to obtain a corrected predicted startup time → at the same time, the cloud server calculates a heat storage time based on the corrected predicted startup time and the calculated heat storage time, calculates a heat storage start time → when the heat storage start time is reached, the cloud server issues a command for starting heat storage, controls the air conditioner to operate in the heat storage mode → operates in the heat storage mode for a period of time, receives a startup command of a user, starts the air conditioner to operate in the heating mode, records the current actual startup time → the cloud server, and judges whether a second difference between the current actual startup time and the predicted startup time of this time is smaller than a preset threshold → when the second difference is smaller than a preset threshold → the second difference is smaller than the second difference When a threshold value is preset, adjusting the time correction parameter based on historical actual starting-up time and historical predicted starting-up time of the last 7 days, and storing the adjusted time correction parameter so as to correct the predicted starting-up time next time; and when the second difference is larger than or equal to the preset threshold, directly storing the last time correction parameter without any adjustment.
Those skilled in the art will appreciate that the air conditioner described above may also include other known structures such as processors, controllers, memories, etc., wherein the memories include, but are not limited to, ram, flash, rom, prom, volatile, non-volatile, serial, parallel, or registers, etc., and the processors include, but are not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc. Such well-known structures are not shown in the drawings in order to not unnecessarily obscure embodiments of the present disclosure.
It should be noted that although the detailed steps of the method of the present invention have been described in detail, those skilled in the art can combine, separate and change the order of the above steps without departing from the basic principle of the present invention, and the modified technical solution does not change the basic concept of the present invention and thus falls into the protection scope of the present invention.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A control method of an air conditioner including a compressor, a throttling element, an outdoor heat exchanger and an outdoor fan, and an indoor heat exchanger and an indoor fan, the control method comprising:
acquiring a preset starting time and an outdoor environment temperature of the air conditioner;
correcting the preset starting-up time based on the time correction parameter;
determining a heat storage time of the air conditioner based on the outdoor ambient temperature;
calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time;
and controlling the air conditioner to operate in a heat storage mode when the heat storage starting time is reached.
2. The control method of an air conditioner according to claim 1, wherein the time correction parameter is determined when the air conditioner was last operated.
3. The control method of an air conditioner according to claim 2, wherein the time correction parameter is determined based on a preset turn-on time within a set number of days and a historical actual turn-on time.
4. The method of claim 3, wherein the step of determining the time correction parameter based on a preset power-on time and a historical actual power-on time within a set number of days further comprises:
acquiring historical preset starting-up time and historical actual starting-up time within the set number of days;
calculating the average value of the historical preset starting-up time and the average value of the historical actual starting-up time;
calculating a first difference value between the average value of the historical actual starting-up time and the average value of the historical preset starting-up time;
and determining the first difference as a corrected time correction parameter.
5. The method of claim 1, wherein the step of determining a heat accumulation time of the air conditioner based on the outdoor ambient temperature further comprises:
and determining or calculating the heat storage time based on the corresponding relation or a fitting formula between the outdoor environment temperature and the heat storage time.
6. The method as claimed in claim 1, wherein the step of correcting the preset turn-on time based on a time correction parameter further comprises:
and calculating the sum of the preset starting-up time and the time correction parameter.
7. The method as claimed in claim 1, wherein the step of obtaining the preset turn-on time of the air conditioner further comprises:
acquiring a preset starting moment set by a user; or
Acquiring historical actual starting time of the air conditioner within set days;
and estimating the preset starting-up time based on the historical actual starting-up time.
8. The control method of an air conditioner according to claim 1, wherein after the step of "controlling the air conditioner to operate in the heat storage mode", the control method further comprises:
and when receiving a starting instruction, controlling the air conditioner to start and operate a heating mode.
9. The control method of an air conditioner according to claim 1, further comprising:
when a starting-up instruction is received, recording the current actual starting-up time;
and selectively adjusting the time correction parameter based on the current actual starting time so as to correct the preset starting time when the air conditioner operates next time.
10. The method as claimed in claim 9, wherein the step of selectively adjusting the time correction parameter based on the current actual turn-on time further comprises:
calculating a second difference value between the current actual starting-up time and the preset starting-up time;
judging the size of the second difference value and a preset threshold value;
and when the second difference is smaller than the preset threshold, adjusting the time correction parameter based on the current actual starting-up time.
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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