CN115059992A - Control method of air conditioner, controller, air conditioner and storage medium - Google Patents
Control method of air conditioner, controller, air conditioner and storage medium Download PDFInfo
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- CN115059992A CN115059992A CN202210761269.6A CN202210761269A CN115059992A CN 115059992 A CN115059992 A CN 115059992A CN 202210761269 A CN202210761269 A CN 202210761269A CN 115059992 A CN115059992 A CN 115059992A
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Abstract
The invention discloses a control method of an air conditioner, the controller, the air conditioner and a storage medium, wherein the control method of the air conditioner comprises the following steps: acquiring a first outdoor temperature value of outdoor environment temperature; starting an outdoor fan of the air conditioner under the condition that the first outdoor temperature value is greater than a preset outdoor temperature value; after the first time, acquiring a second outdoor temperature value of the outdoor environment temperature; comparing the second outdoor temperature value with a preset outdoor temperature value to obtain a first comparison result; and determining an outdoor ambient temperature for controlling the start of the air conditioner according to the first comparison result. In the technical scheme of this embodiment, through the temperature cooling around the outdoor fan to temperature sensor, at the temperature sensor's that need not change outdoor ambient temperature place, can effectively prevent to appear because the problem that can't operate to outdoor ambient temperature erroneous judgement.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner, a controller, the air conditioner and a storage medium.
Background
In order to prolong the service life of the whole system, the air conditioning system generally needs to be based on the outdoor environment temperature of the air conditioning system in the whole logic control process of the air conditioning system, and no matter the outdoor environment temperature is high or low, the outdoor environment temperature needs to be detected firstly, so that the next logic judgment can be carried out. At present, most of sensors for detecting the outdoor environment temperature are arranged on fins or metal plates beside the fins, so that the current environment temperature can be accurately detected in the circulating process of the fan. However, the sensor is easily affected by the installation environment and the surface radiation of the sun and the condenser, so that the detection result of the sensor is different from the actual outdoor environment temperature, and even more, when the sensor is affected by the solar radiation, the detected outdoor environment temperature value is possibly higher than the actual outdoor environment temperature by more than 10 ℃, so that the air conditioning system directly judges that the outdoor temperature exceeds the normal operation range, and the air conditioning system cannot operate.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the invention provides a control method of an air conditioner, a controller, the air conditioner and a storage medium, which can effectively prevent the problem that the air conditioner cannot operate due to misjudgment of outdoor environment temperature.
An embodiment of a first aspect of the present invention provides a control method of an air conditioner, the method including:
acquiring a first outdoor temperature value of outdoor environment temperature;
starting an outdoor fan of the air conditioner under the condition that the first outdoor temperature value is greater than a preset outdoor temperature value;
after the first time, acquiring a second outdoor temperature value of the outdoor environment temperature;
comparing the second outdoor temperature value with the preset outdoor temperature value to obtain a first comparison result;
and determining the outdoor environment temperature for controlling the starting of the air conditioner according to the first comparison result.
The air conditioner according to the embodiment of the first aspect of the invention has at least the following advantages: detecting the outdoor environment temperature to obtain a first outdoor temperature value, if the first outdoor temperature value is larger than a preset outdoor temperature value, proving that the current outdoor environment does not conform to the condition of starting operation of the air conditioner or the temperature received by an outdoor temperature sensor is higher, in order to protect the air conditioner, the air conditioner cannot be started, an outdoor fan of the air conditioner is started at the moment, the temperature near the outdoor temperature sensor is cooled, after the outdoor fan operates for the first time, a second outdoor temperature value of the outdoor environment temperature is obtained, then the second outdoor temperature value is compared with the preset outdoor temperature value, the outdoor environment temperature for controlling the air conditioner is determined according to a first comparison result, the air conditioner can be controlled to start according to the outdoor environment temperature for controlling the air conditioner, namely, the temperature around the temperature sensor is cooled by the outdoor fan, the outdoor environment temperature used for controlling the air conditioner is determined according to the condition of the second outdoor temperature value detected after cooling, the problem that the outdoor environment temperature cannot operate due to misjudgment can be effectively prevented when the placement position of the temperature sensor of the outdoor environment temperature does not need to be changed, and the problem that the temperature compensation value is inaccurate due to inaccurate initial value of the outdoor environment temperature in the temperature compensation scheme can be avoided.
In some embodiments, the controlling the air conditioner to be turned on according to the first comparison result includes:
and determining the temperature value for controlling the outdoor environment temperature of the air conditioner to be a preset first default outdoor temperature under the condition that the first comparison result is that the second outdoor temperature value is greater than the maximum outdoor temperature threshold value, wherein the default outdoor temperature is less than the first outdoor temperature threshold value, and the first outdoor temperature threshold value is less than the preset outdoor temperature value.
In some embodiments, after determining the outdoor ambient temperature for controlling the air conditioner to be started according to the first comparison result, the method further includes:
after the second time, acquiring system operation monitoring data of the air conditioner;
acquiring the evaporation temperature under the condition that the system operation monitoring data is less than or equal to the operation data threshold;
increasing a frequency of a compressor of the air conditioner when the evaporation temperature is greater than a target evaporation temperature.
In some embodiments, the method further comprises:
and maintaining the current operation parameters of the air conditioner under the condition that the system operation monitoring data is larger than the operation data threshold value.
In some embodiments, after the determining the outdoor ambient temperature for controlling the air conditioner to be activated according to the first comparison result in case that the air conditioner handles the cooling mode, the method further includes:
acquiring a third outdoor temperature value of the outdoor environment temperature;
under the condition that the third temperature value is lower than a second outdoor temperature threshold value, acquiring a fourth outdoor temperature value of the outdoor environment temperature once after the outdoor fan operates for a preset unit time;
obtaining N fourth outdoor temperature values after N preset periods, wherein N is a positive integer greater than or equal to 2;
and determining the outdoor environment temperature for controlling the air conditioner according to the maximum value and the minimum value in the N fourth outdoor temperature values.
In some embodiments, the controlling the air conditioner according to the maximum value and the minimum value of the N fourth outdoor temperature values includes:
and under the condition that the temperature difference value is smaller than the temperature difference threshold value and the minimum value of the N fourth outdoor temperature values is larger than the third outdoor temperature threshold value, determining the fourth outdoor temperature value as the outdoor environment temperature for controlling the air conditioner, wherein the temperature difference value is the difference value between the maximum value and the minimum value of the N fourth outdoor temperature values.
In some embodiments, said controlling the air conditioner according to the maximum and minimum values of the N fourth outdoor temperature values includes:
under the condition that the temperature difference value is smaller than the temperature difference threshold value and the minimum value of the N fourth outdoor temperature values is larger than the third outdoor temperature threshold value, acquiring the temperature value of the outdoor heat exchanger of the air conditioner;
and determining a temperature value for controlling the outdoor environment temperature of the air conditioner according to the temperature value of the outdoor heat exchanger.
In some embodiments, the determining a temperature value for controlling an outdoor ambient temperature of the air conditioner according to the outdoor heat exchanger temperature value includes:
and under the condition that the temperature value of the outdoor heat exchanger is smaller than the temperature threshold value of the heat exchanger within preset time or the frequency of detecting that the temperature value of the outdoor heat exchanger is smaller than the temperature threshold value of the heat exchanger within preset M continuous periods is greater than or equal to S times, determining the temperature value for controlling the outdoor environment temperature of the air conditioner as a preset second default outdoor temperature value, wherein M is a positive integer greater than or equal to 2, S is a positive integer smaller than M, and the second default outdoor temperature value is smaller than the second outdoor temperature threshold value.
In an embodiment of the second aspect of the present invention, a controller is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the controller implements the control method of the air conditioner according to the first aspect.
An embodiment of the third aspect of the invention provides an air conditioner comprising the controller according to the second aspect.
A fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions for performing the method of controlling an air conditioner according to the first aspect.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic diagram of a system architecture platform for implementing a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention;
fig. 4 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention;
fig. 6 is a flowchart illustrating a method for controlling an air conditioner according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 invention and are not intended to limit the invention. Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of clearly describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where a certain sequence must be followed.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the related art, in order to prolong the service life of the whole system, the outdoor ambient temperature of the air conditioning system is generally required to be detected in the whole logic control process of the air conditioning system, and no matter the outdoor ambient temperature is high or low, the next logic judgment can be performed only by detecting the outdoor ambient temperature. At present, most of sensors for detecting the outdoor environment temperature are arranged on fins or metal plates beside the fins, so that the current environment temperature can be accurately detected in the circulating process of the fan. However, the sensor is easily affected by the installation environment, the sun and the surface radiation of the condenser, so that the detection result of the sensor is different from the actual outdoor environment temperature, and even more, when the sensor is affected by the solar radiation, the detected outdoor environment temperature value is possibly higher than the actual outdoor environment temperature by more than 10 ℃, so that the air conditioning system directly judges that the outdoor temperature exceeds the normal operation range, and the air conditioning system cannot operate.
Based on the above situation, an embodiment of the present invention provides a control method of an air conditioner, a controller, an air conditioner and a computer-readable storage medium, where the control method of the air conditioner includes, but is not limited to, the following steps:
acquiring a first outdoor temperature value of outdoor environment temperature;
starting an outdoor fan of the air conditioner under the condition that the first outdoor temperature value is greater than a preset outdoor temperature value;
after the first time, acquiring a second outdoor temperature value of the outdoor environment temperature;
comparing the second outdoor temperature value with a preset outdoor temperature value to obtain a first comparison result;
and determining an outdoor ambient temperature for controlling the start of the air conditioner according to the first comparison result.
According to the technical scheme of the embodiment of the invention, in the embodiment of the invention, the air conditioner firstly detects the outdoor environment temperature to obtain a first outdoor temperature value, if the first outdoor temperature value is larger than a preset outdoor temperature value, the current outdoor environment does not meet the condition of starting operation of the air conditioner or the temperature received by an outdoor temperature sensor is higher, at the moment, in order to protect the air conditioner, an outdoor fan of the air conditioner cannot be started, the temperature near the outdoor temperature sensor is cooled, after the outdoor fan operates for the first time, a second outdoor temperature value of the outdoor environment temperature is obtained, then the second outdoor temperature value is compared with the preset outdoor temperature value, the outdoor environment temperature for controlling the starting of the air conditioner is determined according to a first comparison result, the starting parameter of the air conditioner can be determined according to the outdoor environment temperature for controlling the starting of the air conditioner, and the air conditioner is controlled to start, the outdoor temperature sensor is used for detecting the outdoor temperature value of the air conditioner, namely, the temperature around the temperature sensor is cooled by the outdoor fan, the outdoor environment temperature used for controlling the air conditioner is determined according to the condition of the second outdoor temperature value detected after cooling, the problem that the outdoor environment temperature cannot operate due to misjudgment can be effectively prevented without changing the placement position of the temperature sensor of the outdoor environment temperature, and the problem that the temperature compensation value is inaccurate due to inaccurate initial value of the outdoor environment temperature in the temperature compensation scheme can be avoided.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 1 is a schematic diagram of a system architecture platform for executing a control method of an air conditioner according to an embodiment of the present invention.
The system architecture platform 1000 of the present invention includes one or more processors 1001 and a memory 1002, and fig. 1 illustrates one processor 1001 and one memory 1002 as an example.
The processor 1001 and the memory 1002 may be connected by a bus or other means, such as the bus shown in fig. 1.
The memory 1002, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory 1002 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 1002 optionally includes memory 1002 located remotely from processor 1001, which may be connected to system architecture platform 1000 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Those skilled in the art will appreciate that the device architecture shown in FIG. 1 does not constitute a limitation of system architecture platform 1000, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
In the system architecture platform 1000 shown in fig. 1, the processor 1001 may be configured to call a defrosting control program of an external unit of an air conditioner stored in the memory 1002, so as to implement a control method of the air conditioner.
Based on the hardware structure of the system architecture platform 1000, various embodiments of the control method of the air conditioner of the present invention are proposed.
As shown in fig. 2, fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention. The method for controlling the air conditioner according to the embodiment of the present invention includes, but is not limited to, step S100, step S200, step S300, step S400, and step S500.
Step S100, a first outdoor temperature value of the outdoor environment temperature is obtained.
Specifically, in order to improve the working life of the whole system, the indoor unit of the air conditioner generally needs to detect the outdoor ambient temperature of the air conditioning system based on the outdoor ambient temperature in the whole logic control process of the air conditioning system, regardless of whether the outdoor ambient temperature is high or low, that is, at this time, the air conditioner obtains the first outdoor temperature value of the outdoor ambient temperature through the temperature sensor arranged on the outdoor unit and used for monitoring the outdoor ambient temperature according to the start-up instruction.
And step S200, starting an outdoor fan of the air conditioner under the condition that the first outdoor temperature value is greater than the preset outdoor temperature value.
Specifically, if the detected first outdoor environment temperature value (first outdoor temperature value) after receiving the power-on instruction is greater than the preset outdoor temperature value, it is proved that the current outdoor environment temperature does not meet the condition for starting the air conditioner, or the temperature received by the outdoor temperature sensor is higher, for example, the temperature sensor for detecting the outdoor environment temperature is arranged on a fin of the outdoor unit or a metal plate beside the outdoor unit, and when the sensor is affected by solar radiation, the detected outdoor environment temperature value may be higher than the actual outdoor environment temperature by more than 10 ℃, so that the first outdoor temperature value is greater than the preset outdoor temperature value; however, since only one outdoor environment temperature value is detected, the air conditioner cannot determine the specific reasons of the above situations, and in order to protect the air conditioner, the air conditioner cannot be started, and an outdoor fan of the air conditioner is started to cool the temperature near the outdoor temperature sensor.
It should be noted that the preset outdoor temperature value is a maximum ambient temperature value allowed by the air conditioner to operate, and the preset outdoor temperature value is different according to different air conditioners, and this embodiment does not specifically limit the preset outdoor temperature value.
It should be noted that the operation wind speed of the outdoor fan is not specifically limited, and may be determined according to a difference between the first outdoor temperature value and a preset outdoor temperature value, or may be a preset default value, which is not specifically limited in this embodiment.
It should be noted that, when the first outdoor temperature value is less than or equal to the preset outdoor temperature value, it is proved that the current outdoor environment temperature meets the requirement for starting the air conditioner, the outdoor environment temperature for controlling the start of the air conditioner may be directly determined as the first outdoor temperature value, and then the start parameter of the air conditioner is determined according to the first outdoor temperature value and the air conditioner is controlled to start.
Step S300, after the first time, acquiring a second outdoor temperature value of the outdoor environment temperature.
Specifically, after the outdoor fan works for the first time, if the outdoor environment temperature is too high or there is a problem that the temperature received by the outdoor temperature sensor is too high, the temperature of the fins of the outdoor unit or the metal plates beside the outdoor unit affected by the solar radiation around the temperature sensor for detecting the outdoor environment temperature is reduced, and then the second outdoor temperature value of the outdoor environment temperature of the air conditioner can be detected again.
It should be noted that the first time may be determined according to the operating wind speed of the outdoor fan, or may be a preset default value, for example: may be 5 minutes or may be 6 minutes, which is not particularly limited in this embodiment.
And step S400, comparing the second outdoor temperature value with a preset outdoor temperature value to obtain a first comparison result.
Specifically, the second outdoor temperature value detected by the temperature sensor of the outdoor ambient temperature is compared with the preset outdoor temperature value, so as to obtain a first comparison result, where the first comparison result may be that the second outdoor temperature value is greater than the preset outdoor temperature value, the first comparison result may also be that the second outdoor temperature value is less than or equal to the preset outdoor temperature value, and may also be a difference value between the second outdoor temperature value and the preset outdoor temperature value, which is not specifically limited in this embodiment.
And step S500, determining the outdoor environment temperature for controlling the starting of the air conditioner according to the first comparison result.
Specifically, when the first comparison result is that the second outdoor temperature value is less than or equal to the preset outdoor temperature value, that is, after the temperature around the temperature sensor is cooled by the outdoor fan, the detected outdoor environment temperature meets the starting condition of the air conditioner, then the outdoor environment temperature for controlling the air conditioner to start can be determined as the second outdoor temperature value, and then the air conditioner starting parameter is determined according to the second outdoor temperature value and the air conditioner is controlled to start. When the first comparison result is that the second outdoor temperature value is greater than the preset outdoor temperature value, it can be considered that the second outdoor temperature value detected by the temperature sensor still does not meet the starting requirement of the air conditioner after the temperature sensor is cooled by the outdoor fan, but for the use requirement of a user, the outdoor environment temperature for controlling the air conditioner to start can be determined as a preset first default outdoor temperature, the preset first default outdoor temperature is less than a first outdoor temperature threshold, and the first outdoor temperature threshold is less than the preset outdoor temperature value. For example: the first outdoor temperature threshold value can be set to be a temperature value which is lower than the preset outdoor temperature value by 2 degrees centigrade, then the preset first default outdoor temperature can be set to be a temperature value which is relatively close to but smaller than the first outdoor temperature threshold value, and then the starting parameters of the air conditioner are determined according to the preset first default outdoor temperature and the air conditioner is controlled to be started, so that the air conditioner can be operated in a relatively low-power state, and the influence of the outdoor temperature value on the operation of the air conditioner is reduced as much as possible.
It should be noted that the parameters for starting the air conditioner determined according to the different outdoor ambient temperatures for controlling the start of the air conditioner may be the same or different, for example, if a certain air conditioner is set to determine an outdoor temperature range according to an outdoor temperature value, and then determines the parameters for starting the air conditioner according to the outdoor temperature range, although the outdoor ambient temperature values for controlling the start of the air conditioner may be different, if the outdoor ambient temperature values for controlling the start of the air conditioner just belong to the same outdoor temperature range, the determined parameters for starting the air conditioner may be the same; for another example, if a certain air conditioner is configured to directly determine the parameter for starting the air conditioner according to the outdoor environment temperature value for controlling the start of the air conditioner, the determined parameter for starting the air conditioner is necessarily different when the outdoor environment temperature values for controlling the start of the air conditioner are different.
It should be noted that the parameters for starting the air conditioner may include the frequency of the compressor, the rotation speed of the outdoor fan, the rotation speed of the indoor fan, the opening degree of the throttle device, etc., and this embodiment does not specifically limit this, and different parameters that need to be adjusted may be set according to different structures of the air conditioner.
It should be noted that, in this embodiment, neither the preset first default outdoor temperature nor the first outdoor temperature threshold is specifically limited, and the setting is performed according to actual situations or different air conditioners.
In the embodiments of steps S100 to S500, when a power-on instruction is received, the air conditioner first detects the outdoor environment temperature to obtain a first outdoor temperature value, if the first outdoor temperature value is greater than a preset outdoor temperature value, it is proved that the current outdoor environment does not meet the condition for starting the air conditioner or the temperature received by the outdoor temperature sensor is high, at this time, in order to protect the air conditioner, the air conditioner cannot be started, an outdoor fan of the air conditioner needs to be started to cool the temperature near the outdoor temperature sensor, after the outdoor fan operates for a first time, a second outdoor temperature value of the outdoor environment temperature is obtained, then the second outdoor temperature value is compared with the preset outdoor temperature value, the outdoor environment temperature for controlling the air conditioner is determined according to the first comparison result, the air conditioner can be controlled to start according to the outdoor environment temperature for controlling the air conditioner, after the outdoor fan is used for cooling, the starting parameters of the air conditioner can be determined according to the outdoor environment temperature for controlling the air conditioner to be started, the air conditioner is controlled to be started, namely, the temperature around the temperature sensor is cooled through the outdoor fan, the outdoor environment temperature for controlling the air conditioner is determined according to the condition of the second outdoor temperature value detected after cooling, the problem that the air conditioner cannot operate due to misjudgment of the outdoor environment temperature can be effectively solved without changing the placement position of the temperature sensor of the outdoor environment temperature, and the problem that the temperature compensation value is inaccurate due to inaccurate initial value of the outdoor environment temperature in the temperature compensation scheme can be solved.
Referring to fig. 3, in case that a parameter for the start of the air conditioner is determined according to a preset first default outdoor temperature and the start of the air conditioner is controlled, after step S500, the method includes, but is not limited to, the following steps S310, S320, S330 and S340:
step S310, acquiring system operation monitoring data of the air conditioner after the second time;
step S320, acquiring the evaporation temperature under the condition that the system operation monitoring data is less than or equal to the operation data threshold;
step S330, increasing the frequency of a compressor of the air conditioner under the condition that the evaporation temperature is higher than the target evaporation temperature;
and step S340, keeping the current operation parameters of the air conditioner under the condition that the system operation monitoring data is larger than the operation data threshold value.
In an embodiment, when the starting parameter of the air conditioner is determined according to the preset first default outdoor temperature and the air conditioner is controlled to be started, after the air conditioner operates for the second time, system operation monitoring data can be detected, wherein the system operation monitoring data at least comprise the temperature of the outdoor heat exchanger, the exhaust pressure of the air conditioner, the exhaust temperature of the air conditioner, the temperature of the module radiating fins and the like, and if one or more of the detected system operation monitoring data is larger than the operation data threshold value, namely the frequency limiting problem of the air conditioner is indicated, the parameter determining the starting of the air conditioner with the first default outdoor temperature is kept to continue to operate. If the system operation monitoring data is smaller than or equal to the operation data threshold value, namely the air conditioner does not have the frequency limiting problem, the evaporation temperature of the air conditioner under the current return air saturation pressure can be acquired at the moment, and the frequency of a compressor of the air conditioner can be increased under the condition that the evaporation temperature is larger than the target evaporation temperature. After the frequency of the compressor of the air conditioner is increased, the system operation monitoring data needs to be continuously detected, the system operation monitoring data is larger than the operation data threshold, the air conditioner has the problem of frequency limitation, then, the air conditioner is not subjected to frequency-up control at the moment, the current operation parameters of the air conditioner are kept, if the system operation monitoring data is smaller than or equal to the operation data threshold, the air conditioner does not have the problem of frequency limitation, then, under the condition that the evaporation temperature is larger than the target evaporation temperature, the frequency of the compressor of the air conditioner can be increased, and details are not repeated here.
The step of increasing the frequency of the compressor of the air conditioner in this embodiment may be a gradual adjustment and increase process, and the frequency of the compressor of the air conditioner may be continuously increased when the detected evaporation temperature is greater than the target evaporation temperature and the system operation monitoring data is less than or equal to the operation data threshold. It should be noted that each time the frequency of the compressor is increased, it may be a fixed value, for example: the frequency of the compressor is raised by 2Hz/min or 3Hz/min each time, and may also be a variable value, such as: the frequency of the compressor is increased by 2Hz/min for the first time, increased by 3Hz/min for the second time and increased by 2Hz/min for the third time.
It should be noted that the air conditioner may calculate the saturated evaporation temperature of the indoor unit according to the evaporation pressure detected by the pressure sensor, or may directly use the evaporation temperature detected by the temperature sensor as the saturated evaporation temperature of the indoor unit, as long as the controller can obtain the saturated evaporation temperature of the indoor unit, which is not specifically limited in this embodiment.
It should be noted that the second time may be 30 minutes, 25 minutes, or 28 minutes, which is not specifically limited in this embodiment and may be set differently according to different air conditioners.
Referring to fig. 4, in case the air conditioner is in the cooling mode, after step S500, the method includes, but is not limited to, the following steps S410, S420, S430 and 440:
step S410, acquiring a third outdoor temperature value of the outdoor environment temperature;
step S420, under the condition that the third temperature value is lower than the second outdoor temperature threshold value, acquiring a fourth outdoor temperature value of the outdoor environment temperature once after the outdoor fan operates for a preset unit time;
step S430, obtaining N fourth outdoor temperature values after N preset periods, wherein N is a positive integer greater than or equal to 2;
and step S440, determining the outdoor environment temperature for controlling the air conditioner according to the maximum value and the minimum value in the N fourth outdoor temperature values.
Specifically, in the operation process of the air conditioner in the cooling mode, the frequency of the compressor and the rotating speed of the outdoor fan are both in an automatic dynamic regulation control mode, in this mode, the air conditioner can perform start-stop control on the outdoor fan under a plurality of different conditions, under the condition that the outdoor fan is stopped, the outdoor environment temperature value detected by the temperature sensor for measuring the outdoor temperature can be increased, and under the condition that the outdoor fan is started, the outdoor environment temperature value detected by the temperature sensor for measuring the outdoor temperature can be decreased. Then, under the condition that the temperature sensor of the outdoor temperature intermittently detects that the outdoor environment temperature value is larger than the second outdoor temperature threshold value and the outdoor environment temperature value is smaller than the fourth outdoor temperature threshold value, acquiring a third outdoor temperature value of the outdoor environment temperature, under the condition that the third temperature value is lower than the second outdoor temperature threshold value, acquiring a fourth outdoor temperature value of the outdoor environment temperature once after the outdoor fan operates for a preset unit time, and recording the fourth outdoor temperature value of the period, then after N preset periods, acquiring N fourth outdoor temperature values, wherein N is a positive integer greater than or equal to 2, determining the maximum value and the minimum value of the N fourth outdoor temperature values from the N fourth outdoor temperature values, and then determining the outdoor environment temperature for controlling the air conditioner according to the conditions of the maximum value and the minimum value, the operation parameters of the air conditioner are adjusted according to the outdoor environment temperature for controlling the air conditioner, namely, the change degree of the outdoor environment temperature is monitored, the accuracy of the outdoor environment temperature for controlling the air conditioner is higher according to the change degree of the outdoor environment temperature, and the air conditioner can be adjusted and controlled closer to the actual outdoor environment temperature of the air conditioner.
In one embodiment, in the operation process of the air conditioner in the cooling mode, the frequency of the compressor and the rotating speed of the outdoor fan are both in an automatic dynamic regulation control mode, in this mode, the air conditioner can perform start-stop control on the outdoor fan under a plurality of different conditions, when the outdoor fan is stopped, the outdoor environment temperature value detected by the temperature sensor for measuring the outdoor temperature is increased, and when the outdoor fan is started, the outdoor environment temperature value detected by the temperature sensor for measuring the outdoor temperature is decreased. Then under the condition that the temperature sensor of the outdoor temperature intermittently detects that the outdoor environment temperature value is more than 5 ℃ and the outdoor environment temperature value is less than 2 degree centigrade, the control logic of the outdoor environment temperature value is entered, under the condition that the detected third temperature value is less than 5 ℃, after the outdoor fan operates for preset unit time, the fourth outdoor temperature value of the outdoor environment temperature is obtained once, 5 periods are continuously recorded, the maximum value and the minimum value are determined from the recorded 5 fourth outdoor temperature values, then the outdoor environment temperature for controlling the air conditioner is determined according to the condition of the maximum value and the minimum value, namely the change degree of the outdoor environment temperature can be determined according to the maximum value and the minimum value, and the accuracy for controlling the outdoor environment temperature of the air conditioner is determined to be higher according to the change degree of the outdoor environment temperature, the air conditioner can be adjusted and controlled closer to the actual outdoor environment temperature of the air conditioner.
It should be noted that the second outdoor temperature threshold, the fourth outdoor temperature threshold, the number of recording cycles, and the preset unit time may be set according to actual situations, and this embodiment does not specifically limit the present invention.
Referring to fig. 5, step 440 includes, but is not limited to, the following step S510:
step S510, when the temperature difference is smaller than the temperature difference threshold and the minimum value of the N fourth outdoor temperature values is greater than the third outdoor temperature threshold, determining the fourth outdoor temperature value as the outdoor ambient temperature for controlling the air conditioner, where the temperature difference is a difference between the maximum value and the minimum value of the N fourth outdoor temperature values.
Specifically, under the condition that the difference between the maximum value and the minimum value of the N fourth outdoor temperature values is smaller than the temperature difference threshold value, and the minimum value of the N fourth outdoor temperature values is greater than the third outdoor temperature threshold value, it is proved that the degree of change of the outdoor environment temperature is relatively stable, and then the outdoor environment temperature for controlling the air conditioner does not need to be interfered, and one of the N recorded fourth outdoor temperature values can be determined as the outdoor environment temperature for controlling the air conditioner, and then the operation parameters of the air conditioner are adjusted and controlled according to the fourth outdoor temperature value.
In an embodiment, when the difference between the maximum value and the minimum value of the 5 fourth outdoor temperature values is less than 3 degrees celsius, and the minimum value of the 5 fourth outdoor temperature values is greater than-7 degrees celsius, it is proved that the degree of change of the outdoor environment temperature is relatively stable, and then the outdoor environment temperature for controlling the air conditioner does not need to be interfered, and a non-maximum value or a non-minimum value of the recorded 5 fourth outdoor temperature values may be determined as the outdoor environment temperature for controlling the air conditioner, and then the operation parameter of the air conditioner is adjusted and controlled according to the fourth outdoor temperature value.
Referring to fig. 6, step 440 includes, but is not limited to, the following steps S610 and S620:
step S610, acquiring the temperature value of the outdoor heat exchanger of the air conditioner under the condition that the temperature difference value is smaller than the temperature difference threshold value and the minimum value of the N fourth outdoor temperature values is larger than the third outdoor temperature threshold value;
and step S620, determining a temperature value for controlling the outdoor environment temperature of the air conditioner according to the temperature value of the outdoor heat exchanger.
Specifically, under the condition that the difference value between the maximum value and the minimum value in the N fourth outdoor temperature values is greater than the temperature difference threshold value, and the minimum value in the N fourth outdoor temperature values is greater than the third outdoor temperature threshold value, it is proved that the degree of change of the outdoor environment temperature is relatively large, then the fourth outdoor temperature value detected by the temperature sensor for detecting the outdoor environment temperature needs to be intervened, the detected fourth outdoor temperature value cannot be directly used to adjust and control the operation parameters of the air conditioner, the temperature value of the outdoor heat exchanger of the air conditioner is obtained, then the temperature value for controlling the outdoor environment temperature of the air conditioner is determined according to the temperature value of the outdoor heat exchanger, even if the fourth outdoor temperature value is affected by the radiation of the heat exchanger during the low-temperature refrigeration and fan stop, and the control output of the minimum opening degree of the throttle valve cannot be affected under the condition that the deviation of the fourth outdoor temperature value is relatively large, the problem of liquid return of the system caused by the fact that the superheat degree is lower than the superheat degree threshold value for a long time can be avoided.
In one embodiment, if the external heat exchanger temperature values are less than the heat exchanger temperature threshold for a predetermined amount of time, or under the condition that the times of detecting that the temperature value of the outdoor heat exchanger is smaller than the temperature threshold value of the heat exchanger in preset M continuous periods is more than or equal to S times, determining a temperature value for controlling an outdoor ambient temperature of the air conditioner as a preset second default outdoor temperature value, wherein M is a positive integer greater than or equal to 2, S is a positive integer less than M, the second default outdoor temperature value is less than the second outdoor temperature threshold value, the temperature value for controlling the outdoor environment temperature of the air conditioner is inversely determined through the temperature value of the outdoor heat exchanger, even if the fourth outdoor temperature value is influenced by the radiation of the heat exchanger when the low-temperature refrigeration fan is stopped, under the condition that the deviation of the fourth outdoor temperature value is large, the control output of the minimum opening of the throttle valve cannot be influenced, and the problem that the superheat degree is lower than the superheat degree threshold value for a long time to cause liquid return of the system cannot occur.
In one embodiment, in the case that the temperature value of the outdoor heat exchanger is less than 7 ℃ within 5 minutes, or in 5 continuous periods, under the condition that the times of obtaining the temperature value of the outdoor heat exchanger less than 7 ℃ is more than or equal to 3, in order to prevent the problem that the superheat degree of the outdoor heat exchanger is lower than 5 ℃ for a long time, the temperature value for controlling the outdoor environment temperature of the air conditioner is determined to be between-5 ℃ and 5 ℃, and according to the temperature value of outdoor environment temperature of said interval the operation parameter of air conditioner can be regulated and controlled, even if the fourth outdoor temperature value is influenced by the radiation of the heat exchanger when the low-temperature refrigeration fan is stopped, and the fourth outdoor temperature value is higher than 10 ℃, the control output of the minimum opening of the throttle valve cannot be influenced, and the problem that the superheat degree is lower than 5 ℃ for a long time to cause liquid return of the system cannot occur.
Based on the control method of the air conditioner described above, various embodiments of the controller, the air conditioner, and the computer-readable storage medium of the present invention are separately set forth below.
One embodiment of the present invention provides a controller, including: a processor, a memory, and a computer program stored on the memory and executable on the processor.
The processor and memory may be connected by a bus or other means.
It should be noted that the controller in this embodiment may include a processor and a memory as in the embodiment shown in fig. 1, both belong to the same inventive concept, and therefore both have the same implementation principle and beneficial effect, and are not described in detail herein.
The non-transitory software programs and instructions required to implement the control method of the air conditioner of the above-described embodiment are stored in the memory, and when executed by the processor, the control method of the air conditioner of the above-described embodiment is performed.
In addition, the embodiment of the invention also provides an air conditioner, which comprises the controller.
It is to be noted that, since the air conditioner according to the embodiment of the present invention has the controller according to the above-described embodiment, and the controller according to the above-described embodiment is capable of executing the control method according to the above-described embodiment, the specific implementation and technical effects of the air conditioner according to the embodiment of the present invention may be referred to the specific implementation and technical effects of the control method according to any of the above-described embodiments.
Also provided in an embodiment of the present invention is a computer-readable storage medium, which stores computer-executable instructions for executing the method for controlling an air conditioner, for example, executed by one processor 1001 in fig. 1, and causing the one or more processors to execute the method for controlling an air conditioner in the above-described method embodiment, for example, the method steps S100 to S500 in fig. 2, the method steps S310 to S340 in fig. 3, the method steps S410 to S440 in fig. 4, the method step S510 in fig. 5, and the method steps S610 to S620 in fig. 6 described above.
The above-described embodiments of the apparatus are merely illustrative, and the units illustrated as separate components may or may not be physically separate, may be located in one place, or may be distributed over a plurality of network nodes. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer readable storage media (or non-transitory media) and communication media (or transitory media). The term computer-readable storage medium includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer-readable storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are to be included within the scope of the present invention defined by the claims.
Claims (11)
1. A method for controlling an air conditioner, the method comprising:
acquiring a first outdoor temperature value of outdoor environment temperature;
starting an outdoor fan of the air conditioner under the condition that the first outdoor temperature value is greater than a preset outdoor temperature value;
after the first time, acquiring a second outdoor temperature value of the outdoor environment temperature;
comparing the second outdoor temperature value with the preset outdoor temperature value to obtain a first comparison result;
and determining the outdoor environment temperature for controlling the starting of the air conditioner according to the first comparison result.
2. The method for controlling an air conditioner according to claim 1, wherein the controlling the air conditioner to be turned on according to the first comparison result includes:
and determining the temperature value for controlling the outdoor environment temperature of the air conditioner to be a preset first default outdoor temperature under the condition that the first comparison result is that the second outdoor temperature value is greater than the maximum outdoor temperature threshold value, wherein the default outdoor temperature is less than the first outdoor temperature threshold value, and the first outdoor temperature threshold value is less than the preset outdoor temperature value.
3. The method of claim 2, wherein after determining an outdoor ambient temperature for controlling the start of the air conditioner according to the first comparison result, the method further comprises:
after the second time, acquiring system operation monitoring data of the air conditioner;
acquiring the evaporation temperature under the condition that the system operation monitoring data is less than or equal to the operation data threshold;
increasing a frequency of a compressor of the air conditioner when the evaporation temperature is greater than a target evaporation temperature.
4. The control method of an air conditioner according to claim 3, further comprising:
and maintaining the current operation parameters of the air conditioner under the condition that the system operation monitoring data is larger than the operation data threshold value.
5. The method of controlling an air conditioner according to claim 1, wherein after determining an outdoor ambient temperature for controlling a start of the air conditioner according to the first comparison result in a case where the air conditioner handles a cooling mode, the method further comprises:
acquiring a third outdoor temperature value of the outdoor environment temperature;
under the condition that the third temperature value is lower than a second outdoor temperature threshold value, acquiring a fourth outdoor temperature value of the outdoor environment temperature once after the outdoor fan operates for a preset unit time;
after N preset periods, obtaining N fourth outdoor temperature values, wherein N is a positive integer greater than or equal to 2;
and determining the outdoor environment temperature for controlling the air conditioner according to the maximum value and the minimum value in the N fourth outdoor temperature values.
6. The method of claim 5, wherein the controlling the air conditioner according to the maximum and minimum values of the N fourth outdoor temperature values comprises:
and under the condition that the temperature difference value is smaller than a temperature difference threshold value and N minimum values in the fourth outdoor temperature values are larger than a third outdoor temperature threshold value, determining the fourth outdoor temperature value as the outdoor environment temperature for controlling the air conditioner, wherein the temperature difference value is N difference values of the maximum value and the minimum value in the fourth outdoor temperature values.
7. The method as claimed in claim 5, wherein said controlling the air conditioner according to the maximum and minimum values among the N fourth outdoor temperature values comprises:
under the condition that the temperature difference value is smaller than the temperature difference threshold value and the minimum value of the N fourth outdoor temperature values is larger than the third outdoor temperature threshold value, acquiring the temperature value of the outdoor heat exchanger of the air conditioner;
and determining a temperature value for controlling the outdoor environment temperature of the air conditioner according to the temperature value of the outdoor heat exchanger.
8. The method as claimed in claim 7, wherein said determining a temperature value for controlling an outdoor ambient temperature of the air conditioner based on the outdoor heat exchanger temperature value comprises:
and under the condition that the temperature value of the outdoor heat exchanger is smaller than the temperature threshold value of the heat exchanger within preset time or the frequency of detecting that the temperature value of the outdoor heat exchanger is smaller than the temperature threshold value of the heat exchanger within preset M continuous periods is greater than or equal to S times, determining the temperature value for controlling the outdoor environment temperature of the air conditioner as a preset second default outdoor temperature value, wherein M is a positive integer greater than or equal to 2, S is a positive integer smaller than M, and the second default outdoor temperature value is smaller than the second outdoor temperature threshold value.
9. A controller comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the method of controlling an air conditioner according to any one of claims 1 to 8 when executing the computer program.
10. An air conditioner characterized by comprising the controller of claim 9.
11. A computer-readable storage medium characterized by storing computer-executable instructions for performing the control method of an air conditioner according to any one of claims 1 to 8.
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| CN202210761269.6A CN115059992A (en) | 2022-06-30 | 2022-06-30 | Control method of air conditioner, controller, air conditioner and storage medium |
| PCT/CN2022/128326 WO2024000962A1 (en) | 2022-06-30 | 2022-10-28 | Control method for air conditioner, controller, air conditioner, and storage medium |
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| CN202210761269.6A CN115059992A (en) | 2022-06-30 | 2022-06-30 | Control method of air conditioner, controller, air conditioner and storage medium |
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| WO2024000962A1 (en) * | 2022-06-30 | 2024-01-04 | 广东美的制冷设备有限公司 | Control method for air conditioner, controller, air conditioner, and storage medium |
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| CN117529069B (en) * | 2024-01-08 | 2024-04-05 | 浙江德塔森特数据技术有限公司 | Data center peak-valley electricity application control method and management and control server |
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| CN108151254A (en) * | 2017-12-25 | 2018-06-12 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
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| US20150338111A1 (en) * | 2014-05-23 | 2015-11-26 | Lennox lndustries lnc. | Variable Speed Outdoor Fan Control |
| CN104764141B (en) * | 2015-03-19 | 2019-01-29 | 珠海格力电器股份有限公司 | Air conditioner temprature control method and air conditioner |
| CN106352636B (en) * | 2016-10-31 | 2019-05-03 | 广东美的制冷设备有限公司 | Air-conditioner control method, controller and air conditioner |
| CN109059212B (en) * | 2018-07-26 | 2020-10-30 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and air conditioner |
| US10830472B2 (en) * | 2018-12-20 | 2020-11-10 | Johnson Controls Technology Company | Systems and methods for dynamic coil calibration |
| CN115059992A (en) * | 2022-06-30 | 2022-09-16 | 广东美的制冷设备有限公司 | Control method of air conditioner, controller, air conditioner and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107975915A (en) * | 2017-11-09 | 2018-05-01 | 广东美的暖通设备有限公司 | Control method, device and the computer-readable recording medium of air conditioner |
| CN108151254A (en) * | 2017-12-25 | 2018-06-12 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
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| WO2024000962A1 (en) * | 2022-06-30 | 2024-01-04 | 广东美的制冷设备有限公司 | Control method for air conditioner, controller, air conditioner, and storage medium |
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