CN110986321B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN110986321B CN110986321B CN201911294655.3A CN201911294655A CN110986321B CN 110986321 B CN110986321 B CN 110986321B CN 201911294655 A CN201911294655 A CN 201911294655A CN 110986321 B CN110986321 B CN 110986321B
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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
- F24F11/67—Switching between heating and cooling modes
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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Abstract
The invention provides an air conditioner and a control method thereof, wherein the control method of the air conditioner comprises the following steps: acquiring a starting signal of the air conditioner; driving the air conditioner to operate in an initial mode indicated by the starting signal; acquiring environmental parameters and/or operation information of the air conditioner; and determining an expected mode of the air conditioner according to the environmental parameters and/or the operation information, and outputting a reminding signal to remind a user to switch the operation mode under the condition that the expected mode is not consistent with the initial mode. By using the control method of the invention, after the air conditioner operates in the initial mode indicated by the starting signal, the expected mode of the air conditioner can be determined according to the environmental parameters and/or the operation information, so that the air conditioner can automatically determine whether the current operation mode can exert the air conditioning effect, and the operation reliability of the air conditioner is improved.
Description
Technical Field
The invention relates to the field of air conditioning, in particular to an air conditioner and a control method thereof.
Background
When the air conditioner is turned on, the air conditioner generally enters a working state according to an operation mode before the air conditioner is turned off last time or an operation mode selected by a user. However, the air conditioner in the prior art cannot determine whether the current operation mode is consistent with the expected mode of the user, for example, in a season change or in a case of misoperation of the user, if the current operation mode is not consistent with the expected mode of the user, the air conditioner cannot remind the user to switch the operation mode, which may result in that the air conditioner cannot exert the expected air conditioning capability within a period of time during a startup session, and user experience is poor.
Therefore, how to avoid the problem of the air conditioning capacity malfunction of the air conditioner due to the selection error of the operation mode is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
An object of the present invention is to provide an air conditioner and a control method thereof that solves at least any of the above-mentioned problems.
A further object of the present invention is to enable an air conditioner to avoid the problem of malfunction in the air conditioning capacity of the air conditioner due to an error in the selection of the operation mode.
A further object of the present invention is to improve the reliability of the operation of the air conditioner.
It is a further object of the present invention to enable the air conditioner to determine the desired mode more accurately.
According to an aspect of the present invention, there is provided a control method of an air conditioner, including: acquiring a starting signal of an air conditioner; driving the air conditioner to operate in an initial mode indicated by the start signal; acquiring environmental parameters and/or operation information of an air conditioner; and determining an expected mode of the air conditioner according to the environmental parameters and/or the operation information, and outputting a reminding signal to remind a user to switch the operation mode under the condition that the expected mode is not consistent with the initial mode.
Optionally, the environmental parameter includes an ambient temperature of a room in which the air conditioner is located, and the step of determining the expected mode of the air conditioner based on the environmental parameter includes: matching the ambient temperature with a plurality of preset temperature threshold ranges, wherein each temperature threshold range is set according to the applicable ambient temperature corresponding to one operation mode of the air conditioner; the expected mode of the air conditioner is determined according to the temperature threshold range to which the ambient temperature belongs.
Optionally, the operation mode at least includes a cooling mode and a heating mode, and the preset multiple temperature threshold ranges at least include an applicable environment temperature range corresponding to the cooling mode and an applicable environment temperature range in the heating mode.
Optionally, the operational information includes heat exchanger coil pressure, and the step of determining an expected mode of the air conditioner from the operational information includes: matching the pressure of a coil pipe of the heat exchanger with a plurality of preset pressure threshold value ranges, wherein each pressure threshold value range is set according to reasonable pressure corresponding to a running mode of the air conditioner; and determining the expected mode of the air conditioner according to the pressure threshold value range to which the pressure belongs.
Optionally, the heat exchanger coil pressure comprises a heat exchanger coil pressure of an outdoor unit of the air conditioner and/or a heat exchanger coil pressure of an indoor unit of the air conditioner.
Optionally, the environmental parameter includes an ambient temperature within the air conditioner, the operational information includes a heat exchanger coil pressure of the air conditioner, and the step of determining the expected mode of the air conditioner based on the ambient temperature and the operational information includes: matching the ambient temperature with a plurality of preset temperature threshold ranges, and determining an expected mode of the air conditioner according to the temperature threshold range to which the ambient temperature belongs under the condition that the ambient temperature is matched with one temperature threshold range; setting each temperature threshold range according to the applicable environment temperature corresponding to the first operation mode of the air conditioner; under the condition that the ambient temperature is not matched with a plurality of preset temperature threshold value ranges, matching the pressure of the coil pipe of the heat exchanger with the plurality of preset pressure threshold value ranges; each pressure threshold range is set according to reasonable pressure corresponding to a running mode of the air conditioner; and determining the expected mode of the air conditioner according to the pressure threshold value range to which the pressure belongs.
Optionally, after the step of outputting the alert signal, the method further includes: acquiring a response signal for the reminded signal; and driving the air conditioner to operate according to the initial mode or the expected mode according to the response signal.
Alternatively, according to another aspect of the present invention, there is also provided an air conditioner including: a refrigeration system; a control device, comprising: the control system comprises a processor and a memory, wherein a control program is stored in the memory, and the control program is used for realizing the control method when being executed by the processor.
Optionally, the air conditioner further comprises: the temperature sensor is used for detecting the indoor environment temperature of the air conditioner; the pressure sensor is used for detecting the pressure of an indoor unit heat exchanger coil of the air conditioner and/or the pressure of an outdoor unit heat exchanger coil of the air conditioner;
optionally, the pressure sensor is disposed at a middle hairpin pipe of the indoor unit heat exchanger and/or the outdoor unit heat exchanger.
According to the air conditioner and the control method thereof, after the air conditioner operates in the initial mode indicated by the starting signal, the expected mode of the air conditioner can be determined according to the environmental parameters and/or the operation information, so that the air conditioner can automatically determine whether the current operation mode can exert the air conditioning effect, and under the condition that the expected mode is not accordant with the initial mode, the air conditioner outputs the reminding signal to remind a user to switch the operation mode, so that the problem that the air conditioning capacity of the air conditioner is abnormal due to wrong operation mode selection can be solved.
Further, after the reminding signal is output, the air conditioner control method and the air conditioner can obtain a response signal aiming at the reminding signal, and drive the air conditioner to operate according to the initial mode or the expected mode according to the response signal, so that the air conditioner can automatically switch the operation mode under the condition of wrong operation of the initial mode, and the operation reliability of the air conditioner is improved.
Further, according to the air conditioner control method and the air conditioner, in the process of determining the expected mode of the air conditioner, the ambient temperature in the air conditioner is matched with a plurality of preset temperature threshold ranges, and under the condition that the ambient temperature is matched with one temperature threshold range, the expected mode can be directly determined according to the ambient temperature; under the condition that the ambient temperature is not matched with the preset temperature threshold value ranges, the expected mode can be determined according to the pressure of the heat exchanger coil, the expected mode of the air conditioner is determined jointly by combining the ambient temperature and the pressure of the heat exchanger coil, and the accuracy is high.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of an air conditioner according to one embodiment of the present invention;
fig. 2 is a schematic view of a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a control flowchart of an air conditioner according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic block diagram of an air conditioner 10 according to one embodiment of the present invention.
The air conditioner 10 of the present embodiment may be a wall-mounted air conditioner, a floor air conditioner, a central air conditioner, or any other device having air temperature adjustment capability.
The air conditioner 10 may generally include: a refrigeration system 300, a temperature sensor 100, a pressure sensor 200, and a control device 400. The air conditioner 10 may include, in terms of component mounting environment division: indoor unit and outdoor unit.
The indoor and outdoor heat exchangers are part of the refrigeration system 300, respectively. The refrigeration system 300 may be implemented using a compression refrigeration cycle that uses a compression phase change cycle of a refrigerant in a compressor, condenser, evaporator, and throttling device to effect heat transfer. In the air conditioner 10, the refrigeration system 300 may further include a four-way valve to change the flow direction of the refrigerant, so that the indoor heat exchanger is alternately used as an evaporator or a condenser to achieve the cooling or heating function. Since the compression refrigeration cycle of the air conditioner 10 is well known to those skilled in the art, the operation principle and structure thereof will not be described herein.
The air conditioner 10 in this embodiment may have a plurality of different operating modes including at least a cooling mode and a heating mode.
The temperature sensor 100 is provided in the indoor unit, and detects an indoor ambient temperature in which the air conditioner 10 is located. The temperature sensor 100 may be disposed at one lateral end of a casing of the indoor unit.
The pressure sensor 200 is disposed on the indoor unit heat exchanger and/or the outdoor unit heat exchanger, and preferably, may be disposed at a middle hairpin tube of the indoor unit heat exchanger and/or the outdoor unit heat exchanger. The pressure sensor 200 is used for detecting the coil pressure of the indoor unit heat exchanger and/or the coil pressure of the outdoor unit heat exchanger. Heat exchanger coil pressure refers to the pressure exerted by the internal refrigerant experienced by the coil at the location of pressure sensor 200. The number of the pressure sensors 200 may be one or more; the pressure sensors 200 can be all arranged on the indoor heat exchanger or the outdoor heat exchanger, and the accuracy of data can be improved by collecting the pressure of the heat exchanger coil pipes at a plurality of positions. In some alternative embodiments, the pressure sensors 200 may be disposed on both the indoor heat exchanger and the outdoor heat exchanger.
The control device 400 includes a memory 420 and a processor 410, wherein a control program 421 is stored in the memory 420, and the control program 421 is executed by the processor 410 to implement the control method of the air conditioner 10 according to any one of the following embodiments. The processor 410 may be a Central Processing Unit (CPU), or a digital processing unit (DSP), etc. The memory 420 is used to store programs executed by the processor 410. The memory 420 may be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. Memory 420 may also be a combination of various memories 420. Since the control program 421 is executed by the processor 410 to implement the processes of the method embodiments described below and achieve the same technical effects, the detailed description is omitted here to avoid repetition.
Fig. 2 is a schematic diagram of a control method of the air conditioner 10 according to an embodiment of the present invention. The control method of the air conditioner 10 may generally include:
step S202, a start signal of the air conditioner 10 is obtained, where the start signal may be a power-on start signal of the air conditioner 10, the air conditioner 10 may receive a one-key start instruction issued by a user through the voice signal processing unit or other signal processing units, and after receiving the one-key start signal, the air conditioner 10 enters a working state according to a running mode before last shutdown. The start signal may also be an operation mode selection signal issued by the user through voice or by triggering a corresponding key on a remote control board that is configured with the air conditioner 10, where the operation mode selection signal includes selection information of an operation mode, and is used to instruct the air conditioner 10 to start operation according to the operation mode selected by the user.
In step S204, the air conditioner 10 is driven to operate in the initial mode indicated by the start signal. If the air conditioner 10 receives a one-key start instruction issued by the user, the operation mode before the previous shutdown is the initial mode and enters the working state. If the air conditioner 10 receives an operation mode selection signal issued by the user, the operation mode selected by the user is used as an initial mode to enter a working state. The operation modes of the air conditioner 10 include at least a cooling mode and a heating mode.
In step S206, the environmental parameters and/or the operation information of the air conditioner 10 are acquired. The environmental parameters include an ambient temperature of an indoor environment where the air conditioner 10 is located, and the operation information includes a heat exchanger coil pressure, where the heat exchanger coil pressure includes a heat exchanger coil pressure of an outdoor unit of the air conditioner 10 and/or a heat exchanger coil pressure of an indoor unit of the air conditioner 10. The present embodiment uses a temperature sensor 100 installed at one end of the indoor unit casing in the transverse direction to obtain the ambient temperature, and uses a pressure sensor 200 installed at the middle hairpin tube of the indoor unit heat exchanger and/or the outdoor unit heat exchanger to obtain the heat exchanger coil pressure.
Step S208, determining an expected mode of the air conditioner 10 according to the environmental parameter and/or the operation information, and outputting a reminding signal to remind a user to switch the operation mode when the expected mode is not in accordance with the initial mode.
Through the above steps, after the air conditioner 10 operates in the initial mode indicated by the start signal, the expected mode of the air conditioner 10 can be determined according to the environmental parameters and/or the operation information, so that the air conditioner 10 automatically determines whether the current operation mode can exert the air conditioning effect, and in the case that the expected mode does not conform to the initial mode, the air conditioner 10 outputs the reminding signal to remind the user to switch the operation mode, so that the problem of the malfunction of the air conditioning capacity of the air conditioner 10 caused by the selection error of the operation mode can be avoided.
The step of determining the expected mode of the air conditioner 10 based on the environmental parameters includes:
matching the ambient temperature with a plurality of preset temperature threshold ranges, wherein each temperature threshold range is set according to an applicable ambient temperature corresponding to an operation mode of the air conditioner 10;
the expected mode of the air conditioner 10 is determined based on the temperature threshold range to which the ambient temperature belongs.
The preset temperature threshold ranges at least include an applicable environment temperature range corresponding to the cooling mode and an applicable environment temperature range corresponding to the heating mode. Generally, the expected mode of the air conditioner 10 is a cooling mode during summer conditions and a heating mode during winter conditions. In the cooling mode, the cooling system 300 of the air conditioner 10 is operated to reduce the temperature of the indoor environment where the indoor unit is located, and in the heating mode, the cooling system 300 of the air conditioner 10 is operated to increase the temperature of the indoor environment where the indoor unit is located. The applicable environment temperature refers to an environment temperature applicable to a certain operation mode of the air conditioner 10, and the preset temperature threshold ranges and the applicable environment temperature corresponding to the operation mode may be preset according to the usage habit of the user. For example, the applicable environment temperature corresponding to the cooling mode may be an environment temperature higher than 30 ℃, that is, the cooling mode is applicable to a high temperature environment with an environment temperature higher than 30 ℃, the temperature threshold range matched with the cooling mode may be 30 ℃ to 40 ℃, the applicable environment temperature corresponding to the heating mode may be an environment temperature lower than 23 ℃, that is, the heating mode is applicable to a low temperature environment with an environment temperature lower than 23 ℃, and the temperature threshold range matched with the heating mode may be 10 ℃ to 23 ℃.
When the temperature threshold range to which the ambient temperature belongs is a temperature threshold range that matches the cooling mode, the expected mode of the air conditioner 10 is determined to be the cooling mode. When the temperature threshold range to which the ambient temperature belongs is a temperature threshold range that matches the heating mode, the expected mode of the air conditioner 10 is determined to be the heating mode. For example, if the ambient temperature detected by the temperature sensor 100 is 32 ℃, the temperature threshold range matched with the cooling mode is 30 ℃ to 40 ℃, the temperature threshold range matched with the heating mode is 10 ℃ to 23 ℃, the ambient temperature 32 ℃ is matched with the two temperature threshold ranges, since the ambient temperature is within the temperature range of 30 ℃ to 40 ℃, the temperature threshold range to which the ambient temperature belongs is 30 ℃ to 40 ℃, and since the temperature threshold range to which the ambient temperature belongs is matched with the cooling mode, the expected mode of the air conditioner 10 is determined to be the cooling mode.
The step of determining the expected mode of the air conditioner 10 according to the operation information includes:
matching the pressure of the coil of the heat exchanger with a plurality of preset pressure threshold ranges, wherein each pressure threshold range is set according to a reasonable pressure range corresponding to an operation mode of the air conditioner 10;
the expected mode of the air conditioner 10 is determined based on the pressure threshold range to which the pressure belongs.
The heat exchanger coil pressure is an important parameter in the operation information of the air conditioner 10, and the magnitude of the heat exchanger coil pressure is related to the characteristic parameters of the refrigeration system 300 and the ambient temperature in which the heat exchanger is located. Under the condition that the characteristic parameters of the refrigeration system 300 are determined values, the ambient temperature at which the heat exchanger is located has an obvious influence on the pressure of the heat exchanger coil, when the ambient temperature is low, the pressure of the heat exchanger coil is low, and when the ambient temperature is high, the pressure of the heat exchanger coil is high. The temperature data of the area where the air conditioner 10 is located over the years are comprehensively analyzed, the pressure of the coil of the heat exchanger is obtained at different environmental temperatures, and a corresponding table of the environmental temperature and the pressure of the coil of the heat exchanger is obtained.
In winter conditions, where the ambient temperature is low and the heat exchanger coil pressure is low, and has a set minimum value, if the heat exchanger coil pressure detected by the pressure sensor 200 is lower than the set minimum value, the initial mode currently running does not match the expected mode. Under the working condition of winter season, the expected mode of the air conditioner 10 should be the heating mode, if the initial mode of the air conditioner 10 is the cooling mode, the heat exchanger coil pressure detected by the pressure sensor 200 will be lower than the set lowest value, therefore, by comparing the heat exchanger coil pressure with the set lowest value, it can be determined whether the expected mode and the initial mode are consistent.
Under summer conditions, the ambient temperature is high, the heat exchanger coil pressure is high, and has a set maximum value, and if the heat exchanger coil pressure detected by the pressure sensor 200 is higher than the set maximum value, the initial mode currently running does not accord with the expected mode. Under summer operating conditions, the expected mode of the air conditioner 10 should be a cooling mode, and if the initial mode of the air conditioner 10 is a heating mode, the heat exchanger coil pressure detected by the pressure sensor 200 will be higher than the set maximum value, so that by comparing the heat exchanger coil pressure with the set maximum value, it can be determined whether the expected mode and the initial mode are consistent.
The preset pressure threshold value ranges at least comprise a pressure threshold value range set according to reasonable pressure corresponding to a refrigeration mode and a pressure threshold value range set according to reasonable pressure corresponding to a heating mode. A reasonable pressure is a pressure within a reasonable range of variation of the heat exchanger coil pressure for a certain mode of operation of the air conditioner 10. The preset pressure threshold ranges and the reasonable pressure corresponding to the operation mode can be preset according to the corresponding table. For example, under summer conditions, the expected mode is a cooling mode, the reasonable pressure corresponding to the cooling mode may be a pressure lower than a Mpa (a Mpa being the highest value of the above setting), and the pressure threshold range matching the cooling mode may be a Mpa-a1 Mpa(a<a1) That is, if the pressure of the heat exchanger coil is higher than a Mpa, the initial mode of the air conditioner 10 is the heating mode, the expected mode is the cooling mode, and the expected mode is not the same as the initial mode. The reasonable pressure corresponding to the heating mode may be a pressure higher than b Mpa (b Mpa being the lowest value set as above), and the pressure threshold range matching the heating mode may be b1 Mpa-b Mpa(b>b1) That is, if the heat exchanger coil pressure is less than b MPa, the initial mode of the air conditioner 10 is the cooling mode, the expected mode is the heating mode, and the expected mode is the cooling modeThe pattern does not coincide with the initial pattern.
The step of determining the expected mode of the air conditioner 10 based on the ambient temperature and the operation information includes:
matching the ambient temperature with a plurality of preset temperature threshold ranges, and determining an expected mode of the air conditioner 10 according to the temperature threshold range to which the ambient temperature belongs under the condition that the ambient temperature is matched with one temperature threshold range; each temperature threshold range is set according to the applicable environment temperature corresponding to an operation mode of the air conditioner 10;
under the condition that the ambient temperature is not matched with a plurality of preset temperature threshold value ranges, matching the pressure of the coil pipe of the heat exchanger with the plurality of preset pressure threshold value ranges; wherein, each pressure threshold range is set according to a reasonable pressure corresponding to an operation mode of the air conditioner 10.
The expected mode of the air conditioner 10 is determined based on the pressure threshold range to which the pressure belongs.
In this embodiment, the applicable environment temperature corresponding to the cooling mode may be an environment temperature higher than 30 ℃, the applicable environment temperature corresponding to the heating mode may be an environment temperature lower than 23 ℃, and the applicable environment temperature corresponding to the operation mode of the air conditioner 10 does not cover all possible environment temperature values, for example, if the environment temperature detected by the temperature sensor 100 is within a range of 23 ℃ to 30 ℃ (without end points), the environment temperature does not belong to a temperature threshold range matching the cooling mode nor a temperature threshold range matching the heating mode, that is, the environment temperature does not match with a plurality of preset temperature threshold ranges, and at this time, the expected mode of the air conditioner 10 cannot be determined simply according to the environment temperature.
To solve the above problem, the air conditioner 10 of the present embodiment uses both the ambient temperature and the heat exchanger coil pressure information to determine the expected mode of the air conditioner 10 and determine whether the expected mode matches the initial mode. The method comprises the steps of arranging a pressure sensor 200 on an outdoor heat exchanger, arranging a temperature sensor 100 at one transverse end of a shell of an indoor unit, obtaining the coil pressure of the outdoor heat exchanger detected by the pressure sensor 200 when the temperature of the indoor environment where the air conditioner 10 is located is not matched with a plurality of preset temperature threshold ranges, and further determining an expected mode by utilizing the coil pressure of the heat exchanger in the outdoor environment. The indoor environment temperature and the outdoor environment temperature sometimes have larger deviation, the pressure of the heat exchanger coil of the outdoor unit is subjected to the comprehensive action of the outdoor environment temperature and the initial mode, so that fluctuation is generated, the pressure of the heat exchanger coil is matched with a plurality of preset pressure threshold ranges, an expected mode can be determined, and whether the expected mode is consistent with the initial mode or not can also be determined.
In this embodiment, in the process of determining the expected mode of the air conditioner 10, the indoor ambient temperature of the air conditioner 10 is first matched with a plurality of preset temperature threshold ranges, and the expected mode can be directly determined according to the ambient temperature under the condition that the ambient temperature is matched with one temperature threshold range; under the condition that the ambient temperature is not matched with the preset temperature threshold value ranges, the expected mode can be determined according to the pressure of the coil of the heat exchanger, the expected mode of the air conditioner 10 is determined by combining the ambient temperature and the pressure of the coil of the heat exchanger, and the accuracy is high.
After the step of outputting the reminding signal, the method further comprises the following steps: and acquiring a response signal aiming at the reminded signal, and driving the air conditioner 10 to operate according to an initial mode or an expected mode according to the response signal.
In this embodiment, the reminding signal may be an alarm signal, for example, a voice broadcasting unit or a signal lamp may be disposed on the indoor unit of the air conditioner 10, the alarm signal may be an alarm sound sent by the voice broadcasting unit, or may also be a light with a reminding function sent by the signal lamp, and the reminding signal is used for reminding a user to switch an operation mode.
The response signal may include a first response signal and a second response signal, where the first response signal is a signal issued by the user to switch the operation mode, and the second response signal is a signal issued by the user to not switch the operation mode. If any instruction sent by the user for the reminding signal is not obtained within the preset time, the user is also considered to send a response signal for the reminding signal at the moment, and the response signal is the first response signal.
Through the above steps, after the air conditioner 10 outputs the reminding signal, the response signal for the reminding signal can be obtained, and the air conditioner 10 is driven to operate according to the initial mode or the expected mode according to the response signal, so that the air conditioner 10 can automatically switch the operation mode under the condition of wrong operation of the initial mode, and the operation reliability of the air conditioner 10 is improved.
Fig. 3 is a control flowchart of the air conditioner 10 according to one embodiment of the present invention. The process comprises the following steps:
in step S302, a start signal of the air conditioner 10 is acquired.
In step S304, the air conditioner 10 is driven to operate in the initial mode indicated by the start signal.
In step S306, the ambient temperature of the room in which the air conditioner 10 is located is acquired.
Step S308, matching the ambient temperature with a plurality of preset temperature threshold ranges. The preset temperature threshold ranges at least comprise a temperature threshold range set according to the applicable temperature corresponding to the refrigeration mode and a temperature threshold range set according to the applicable temperature corresponding to the heating mode.
Step S310, determining whether the ambient temperature matches a plurality of preset temperature threshold ranges, if yes, performing step S312, and if not, performing step S314. When the ambient temperature is within any temperature threshold range, the ambient temperature is matched with a plurality of preset temperature threshold ranges. When the ambient temperature is not within any temperature threshold range, the ambient temperature does not match with the preset temperature threshold ranges.
In step S312, the expected mode of the air conditioner 10 is determined according to the temperature threshold range to which the ambient temperature belongs. When the temperature threshold range to which the ambient temperature belongs is a temperature threshold range that matches the cooling mode, the expected mode of the air conditioner 10 is determined to be the cooling mode. When the temperature threshold range to which the ambient temperature belongs is a temperature threshold range that matches the heating mode, the expected mode of the air conditioner 10 is determined to be the heating mode.
In step S314, the heat exchanger coil pressure of the air conditioner 10 is obtained.
And step S316, matching the pressure of the coil pipe of the heat exchanger with a plurality of preset pressure threshold ranges. The preset pressure threshold value ranges at least comprise a pressure threshold value range set according to reasonable pressure corresponding to a refrigeration mode and a pressure threshold value range set according to reasonable pressure corresponding to a heating mode.
In step S318, the expected mode of the air conditioner 10 is determined according to the pressure threshold range to which the pressure belongs. Under the winter condition, the expected mode of the air conditioner 10 should be the heating mode, and if the initial mode of the air conditioner 10 is the cooling mode, the heat exchanger coil pressure detected by the pressure sensor 200 will be lower than the set lowest value, so that by comparing the heat exchanger coil pressure with the set lowest value, the expected mode can be determined and whether the expected mode and the initial mode are consistent or not can be determined. Under summer conditions, the ambient temperature is high, the heat exchanger coil pressure is high, and has a set maximum value, and if the heat exchanger coil pressure detected by the pressure sensor 200 is higher than the set maximum value, the initial mode currently running does not accord with the expected mode. In summer operating conditions, the expected mode of the air conditioner 10 should be a cooling mode, and if the initial mode of the air conditioner 10 is a heating mode, the heat exchanger coil pressure detected by the pressure sensor 200 will be higher than the set maximum value, so that it can be determined whether the expected mode and the initial mode are consistent by comparing the heat exchanger coil pressure with the set maximum value.
In step S320, it is determined whether the expected mode does not match the initial mode, if yes, step S322 is performed, otherwise, step S328 is performed.
Step S322, outputting a reminding signal. The reminder signal may be an alarm signal.
In step S324, a response signal for the reminded signal is acquired. The response signal may include a first response signal and a second response signal, where the first response signal is a signal issued by the user to switch the operation mode, and the second response signal is a signal issued by the user to not switch the operation mode. If any instruction sent by the user for the reminding signal is not obtained within the preset time, the user is also considered to send a response signal for the reminding signal at the moment, and the response signal is the first response signal.
In step S326, the air conditioner 10 is driven to operate according to the response signal. If the air conditioner 10 receives the first response signal, the initial mode is switched to the expected mode, and if the air conditioner 10 receives the second response signal, the operation is continued according to the initial mode.
In step S328, the air conditioner 10 operates in the initial mode.
By using the method of the embodiment, after the air conditioner 10 operates in the initial mode indicated by the start signal, the expected mode of the air conditioner 10 can be determined according to the environmental parameters and/or the operation information, so that the air conditioner 10 automatically determines whether the current operation mode can exert the air conditioning effect, and when the expected mode is not in accordance with the initial mode, the air conditioner 10 outputs the reminding signal to remind the user to switch the operation mode, thereby avoiding the problem that the air conditioning capability of the air conditioner 10 exerts an abnormality due to an error in selecting the operation mode, avoiding the problem that the air conditioner 10 performs an invalid operation due to an error operation of the user being unable to identify the error operation of the air conditioner 10, improving the reliability of the operation of the air conditioner 10, and enabling the operation process of the air conditioner 10 to be more intelligent and humanized. The method is not only suitable for the traditional air conditioner, but also suitable for the intelligent air conditioner.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. A control method of an air conditioner, comprising:
acquiring a starting signal of the air conditioner;
driving the air conditioner to operate in an initial mode indicated by the starting signal;
acquiring environmental parameters and operation information of the air conditioner;
determining an expected mode of the air conditioner according to the environmental parameters and the operation information, and outputting a reminding signal to remind a user to switch the operation mode under the condition that the expected mode is not consistent with the initial mode; wherein
The environmental parameter includes an ambient temperature within the air conditioner, the operational information includes a heat exchanger coil pressure of the air conditioner, and the step of determining an expected mode of the air conditioner based on the ambient temperature and the operational information includes:
matching the environment temperature with a plurality of preset temperature threshold value ranges, and determining an expected mode of the air conditioner according to the temperature threshold value range to which the environment temperature belongs under the condition that the environment temperature is matched with one temperature threshold value range; setting each temperature threshold range according to the applicable environment temperature corresponding to one operation mode of the air conditioner;
matching the heat exchanger coil pressure with a plurality of preset pressure threshold ranges under the condition that the ambient temperature is not matched with the plurality of preset temperature threshold ranges; each pressure threshold range is set according to reasonable pressure corresponding to one operation mode of the air conditioner;
and determining an expected mode of the air conditioner according to the pressure threshold range to which the pressure belongs.
2. The control method of an air conditioner according to claim 1, wherein
The operation mode at least comprises a refrigeration mode and a heating mode, and the preset temperature threshold ranges at least comprise an applicable environment temperature range corresponding to the refrigeration mode and an applicable environment temperature range in the heating mode.
3. The control method of an air conditioner according to claim 1, wherein
The heat exchanger coil pressure comprises the heat exchanger coil pressure of an outdoor unit of the air conditioner and/or the heat exchanger coil pressure of an indoor unit of the air conditioner.
4. The control method of the air conditioner according to claim 1, further comprising, after the step of outputting the alert signal:
acquiring a response signal for the reminded signal;
and driving the air conditioner to operate according to the initial mode or the expected mode according to the response signal.
5. An air conditioner comprising:
a refrigeration system;
a control device, comprising: a processor and a memory, the memory having stored therein a control program for implementing the control method according to any one of claims 1-4 when executed by the processor.
6. The air conditioner of claim 5, further comprising:
the temperature sensor is used for detecting the indoor environment temperature of the air conditioner;
and the pressure sensor is used for detecting the pressure of a coil pipe of an indoor unit heat exchanger of the air conditioner and/or the pressure of an outdoor unit heat exchanger of the air conditioner.
7. The air conditioner according to claim 6, wherein
The pressure sensor is arranged at the middle hairpin pipe of the indoor unit heat exchanger and/or the outdoor unit heat exchanger.
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| CN113883677B (en) * | 2021-09-16 | 2023-06-09 | 青岛海尔科技有限公司 | Control method and device of air conditioner, storage medium and electronic device |
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