CN112944600A - Air conditioner operation control method and system, air conditioner and storage medium - Google Patents
Air conditioner operation control method and system, air conditioner and storage medium Download PDFInfo
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- CN112944600A CN112944600A CN202110302120.7A CN202110302120A CN112944600A CN 112944600 A CN112944600 A CN 112944600A CN 202110302120 A CN202110302120 A CN 202110302120A CN 112944600 A CN112944600 A CN 112944600A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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Abstract
The application relates to an air conditioner operation control method, an air conditioner operation control system, an air conditioner and a storage medium. The method comprises the following steps: acquiring a current set temperature and a return air temperature value; when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value; determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value; and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner. By adopting the method, the operation condition of the air conditioner can be accurately determined automatically according to the system high pressure value and the system low pressure value of the air conditioner without excessively depending on the manual operation of a user, the operation frequency of the air conditioner and the opening of the electronic expansion valve can be accurately adjusted, the unnecessary energy consumption is reduced, and the energy-saving effect of the air conditioner in the operation process is improved.
Description
Technical Field
The present application relates to the field of air conditioners, and in particular, to a method and a system for controlling operation of an air conditioner, and a storage medium.
Background
With the development of air conditioner technology and the wide application of air conditioners in life and work of people, meanwhile, because the ratio of building energy consumption to actual total energy consumption is large, the energy consumption of the air conditioners is taken as a main part of the building energy consumption, and therefore the problem of energy consumption in the application process of the air conditioners is increasingly emphasized.
Conventionally, the energy consumption of an air conditioner is reduced, different operation modes such as a cooling mode, a heating mode, a dehumidifying mode, an automatic mode, a sleep mode, etc. are provided for the air conditioner, and different operation powers are respectively set for the different operation modes, so that the energy consumption is also different. The user can adjust the operation mode according to the requirement so as to reduce the energy consumption as far as possible on the basis of meeting the actual requirement.
However, in the conventional control method, the user is dependent on manual operation, for example, the user has insufficient familiarity with the air conditioner operation mode, or the operation that needs to be adjusted according to different situations is still complicated, so that the situation that the air conditioner operation mode is not adjusted in different practical application scenes in time is easy to occur, and unnecessary energy consumption is caused. Therefore, the traditional control mode cannot accurately adjust the operation mode of the air conditioner in real time under different practical application scenes or adjust the operation power of the air conditioner and the like, so that the energy consumption is high and the energy-saving effect is poor.
Disclosure of Invention
In view of the above, it is necessary to provide an air conditioner operation control method, an air conditioner operation control system, an air conditioner and a storage medium capable of improving an energy saving effect during an operation process of the air conditioner.
An air conditioner operation control method, the method comprising:
acquiring a current set temperature and a return air temperature value;
when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
In one embodiment, after the obtaining the current set temperature and the return air temperature value, the method further includes:
calculating the temperature difference between the current set temperature and the return air temperature;
comparing the temperature difference with a preset difference threshold value to generate a first comparison result;
and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
In one embodiment, the determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value, and the actual system low pressure value and the corresponding preset system low pressure value includes:
calculating to obtain a first difference value between the actual system high-voltage value and a preset system high-voltage value according to the actual system high-voltage value and a corresponding preset system high-voltage value;
calculating to obtain a second difference value between the actual system low-pressure value and a preset system low-pressure value according to the actual system low-pressure value and a corresponding preset system low-pressure value;
comparing the first difference value with the second difference value to generate a second comparison result;
and determining the operation condition of the air conditioner based on the second comparison result.
In one embodiment, the determining the operation condition of the air conditioner based on the second comparison result includes:
when the first difference is smaller than the second difference according to the second comparison result, determining that the operation working condition of the air conditioner is a first operation working condition; under the first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature;
when the first difference is larger than the second difference according to the second comparison result, determining that the operation working condition of the air conditioner is a second operation working condition; under the second operation working condition, the evaporation temperature of the air conditioner is higher than the condensation temperature;
when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within a preset range, determining that the operation working condition of the air conditioner is a third operation working condition; and under the third operation working condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
In one embodiment, the adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner includes:
based on the first operation working condition, reducing the operation frequency of the air conditioner and increasing the opening degree of the electronic expansion valve;
or based on the second operation working condition, increasing the operation frequency of the air conditioner and reducing the opening degree of the electronic expansion valve;
or based on the third operation working condition, maintaining the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve.
In one embodiment, when it is determined that a self-operation control condition is satisfied based on the current temperature and the return air temperature value, the method further comprises:
detecting the outer ring temperature value of the air conditioner in real time;
and acquiring a preset system high-pressure value and a preset system low-pressure value which are prestored under the corresponding outer ring temperature value.
An air conditioner operation control system, the system comprising: the system comprises a controller, a compressor, pressure detection equipment, temperature detection equipment and an electronic expansion valve, wherein the compressor, the pressure detection equipment, the temperature detection equipment and the electronic expansion valve are connected with the controller; wherein the controller is to:
acquiring a current set temperature and a return air temperature value acquired by the temperature detection equipment;
when the self-operation control condition is met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value detected by the pressure detection equipment;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of a compressor of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
In one embodiment, the controller is further configured to:
calculating the temperature difference between the current set temperature and the return air temperature; comparing the temperature difference with a preset difference threshold value to generate a first comparison result; and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
An air conditioner comprises an air conditioner main body, a compressor, a pressure detection device, a temperature detection device, an electronic expansion valve, a memory and a controller, wherein the compressor, the pressure detection device, the temperature detection device, the electronic expansion valve, the memory and the controller are arranged on the air conditioner main body; the compressor, the pressure detection device, the temperature detection device and the electronic expansion valve are connected with the controller; the memory stores a computer program that when executed by the controller performs the steps of:
acquiring a current set temperature and a return air temperature value;
when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring a current set temperature and a return air temperature value;
when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
According to the air conditioner operation control method and device, the air conditioner and the storage medium, the current set temperature and the return air temperature value are obtained, when the condition of self-operation control is determined to be met according to the current temperature and the return air temperature value, the current actual system high pressure value and the actual system low pressure value are obtained, and the operation working condition of the air conditioner is determined according to the actual system high pressure value, the corresponding preset system high pressure value, the actual system low pressure value and the corresponding preset system low pressure value. And then based on the operating condition of the air conditioner, adjusting the operating frequency of the air conditioner and the opening degree of the electronic expansion valve. The method does not excessively depend on manual operation of a user, can automatically and accurately determine the operation condition of the air conditioner according to the system high-pressure value and the system low-pressure value of the air conditioner, further accurately adjusts the operation frequency of the air conditioner and the opening of the electronic expansion valve, reduces unnecessary energy consumption while meeting the actual requirements of the user in different application environments, and improves the energy-saving effect of the air conditioner in the operation process.
Drawings
FIG. 1 is a flow chart illustrating an operation control method of an air conditioner according to an embodiment;
FIG. 2 is a schematic flow chart illustrating the operation of an air conditioner according to an embodiment;
FIG. 3 is a schematic diagram illustrating a process for determining an operating condition of an air conditioner according to another embodiment;
FIG. 4 is a flowchart illustrating an operation control method of an air conditioner according to another embodiment;
FIG. 5 is a block diagram showing the construction of an operation control system of an air conditioner according to an embodiment;
fig. 6 is a block diagram showing the construction of an operation control system of an air conditioner in another embodiment;
fig. 7 is an internal structure view of an air conditioner in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, an air conditioner operation control method is provided, and this embodiment is illustrated by applying this method to an air conditioner, it is to be understood that this method may also be applied to a server, and may also be applied to a system including an air conditioner and a server, and is implemented by interaction between the air conditioner and the server. In this embodiment, the operation control method of the air conditioner specifically includes the following steps:
and step S102, acquiring the current set temperature and the return air temperature value.
Specifically, the controller of the air conditioner obtains the current set temperature value, that is, the user sets the current set temperature value through the control panel or the terminal device establishing communication connection with the controller, for example, in a cooling mode of the air conditioner, the set current set temperature value may be different values such as 24, 25, or 26 ℃, or may be other working modes, for example, one of other temperature values in a heating mode, and is not limited to a certain temperature value in the same working mode.
The return air temperature value represents an outlet temperature value of air flow after heat exchange, and can be detected through temperature detection equipment arranged in the air conditioner.
And step S104, acquiring a current actual system high-pressure value and an actual system low-pressure value when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value.
Specifically, a temperature difference value between the current set temperature and the return air temperature is calculated, a preset difference threshold value is obtained, the temperature difference value is compared with the preset difference threshold value to generate a first comparison result, and whether the temperature difference value meets the self-operation control condition or not is determined according to the first comparison result.
And when the temperature difference value between the preset temperature and the return air temperature is larger than the preset temperature difference threshold value according to the first comparison result, the self-operation control condition is determined to be met. When the self-operation control condition is met, the current actual system high-pressure value and the current actual system low-pressure value are obtained through pressure detection equipment arranged in the air conditioner. The pressure value in the air conditioner operation process can be obtained through the pressure detection equipment and can be divided into a system low-pressure value and a system high-pressure value, and the pressure changes along with the operation environment temperature of the air conditioner.
Further, in this embodiment, the preset temperature difference threshold may be 3 ℃, or may be other values, which are not limited to individual temperature values, and the first comparison result is obtained by calculating the temperature difference between the current set temperature and the return air temperature, and comparing the temperature difference between the current set temperature and the return air temperature with the preset temperature difference threshold. Wherein the first comparison result comprises: the temperature difference value between the current set temperature and the return air temperature is greater than a preset temperature difference threshold value, namely the temperature difference value between the current set temperature and the return air temperature is greater than 3 ℃, and the temperature difference value between the current set temperature and the return air temperature is less than or equal to 3 ℃.
And S106, determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value.
Specifically, a first difference between the actual system high pressure value and the preset system high pressure value is calculated by obtaining a preset system high pressure value corresponding to the actual system high pressure value and a preset system low pressure value corresponding to the actual system low pressure value and according to the actual system high pressure value and the corresponding preset system high pressure value. And according to the actual system low-pressure value and the corresponding preset system low-pressure value, calculating to obtain a second difference value between the actual system low-pressure value and the preset system low-pressure value. And then comparing the first difference value with the second difference value to generate a second comparison result, and determining the operation condition of the air conditioner based on the second comparison result.
The second comparison result comprises different conditions that the first difference is larger than the second difference, the first difference is smaller than the second difference, the first difference is equal to the second difference and the like, and the different conditions respectively correspond to the operation working conditions of different air conditioners.
And step S108, adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
The operation condition of the air conditioner comprises a first operation condition, a second operation condition and a third operation condition, wherein under the first operation condition, the condensation temperature of the air conditioner is higher than the evaporation temperature, under the second operation condition, the evaporation temperature of the air conditioner is higher than the condensation temperature, and under the third operation condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
Specifically, based on the first operating condition, the operating frequency of the air conditioner is reduced and the opening degree of the electronic expansion valve is increased, and based on the second operating condition, the operating frequency of the air conditioner is increased and the opening degree of the electronic expansion valve is decreased. Further, based on the third operation condition, the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve are maintained.
According to the air conditioner operation control method, the current set temperature and the return air temperature value are obtained, when the condition of self-operation control is determined to be met according to the current temperature and the return air temperature value, the current actual system high pressure value and the actual system low pressure value are obtained, and the operation working condition of the air conditioner is determined according to the actual system high pressure value, the corresponding preset system high pressure value, the actual system low pressure value and the corresponding preset system low pressure value. And then based on the operating condition of the air conditioner, adjusting the operating frequency of the air conditioner and the opening degree of the electronic expansion valve. The method does not excessively depend on manual operation of a user, can automatically and accurately determine the operation condition of the air conditioner according to the system high-pressure value and the system low-pressure value of the air conditioner, further accurately adjusts the operation frequency of the air conditioner and the opening of the electronic expansion valve, reduces unnecessary energy consumption while meeting the actual requirements of the user in different application environments, and improves the energy-saving effect of the air conditioner in the operation process.
In one embodiment, as shown in fig. 2, the step of determining the operation condition of the air conditioner, that is, the step of determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value, and the actual system low pressure value and the corresponding preset system low pressure value, specifically includes:
step S202, calculating to obtain a first difference value between the actual system high-voltage value and the preset system high-voltage value according to the actual system high-voltage value and the corresponding preset system high-voltage value.
Specifically, a first difference between the actual system high-voltage value and the preset system high-voltage value is obtained through obtaining the preset system high-voltage value corresponding to the actual system high-voltage value and calculating.
And step S204, calculating to obtain a second difference value between the actual system low-pressure value and the preset system low-pressure value according to the actual system low-pressure value and the corresponding preset system low-pressure value.
Specifically, a second difference between the actual system low-pressure value and the preset system low-pressure value is obtained by obtaining the preset system low-pressure value corresponding to the actual system low-pressure value and calculating.
In one embodiment, when it is determined that the self-operation control condition is satisfied according to the current temperature and the return air temperature value, the method further includes:
detecting the outer ring temperature value of the air conditioner in real time; and acquiring a preset system high-pressure value and a preset system low-pressure value which are prestored under the corresponding outer ring temperature value.
Specifically, when the temperature difference value calculated according to the current temperature and the return air temperature value is determined to be larger than the preset temperature difference threshold value by 3 ℃, the self-operation control condition is determined to be met, and the outer ring temperature value of the air conditioner is further acquired, wherein the outer ring temperature value of the air conditioner can be acquired through temperature detection equipment arranged outside the air conditioner.
Wherein, to different outer loop temperature values, different preset system high pressure values and preset system low pressure values are prestored, and the corresponding relation of outer loop temperature value and preset system high pressure value, preset system low pressure value is shown in table 1:
TABLE 1
As can be seen from table 1, for different outer ring temperatures, for example, 10 ℃, the corresponding pre-stored preset system low-pressure values and preset system high-pressure values may be 0.884Pa and 2.208Pa, for example, the outer ring temperatures are 15 ℃ and 20 ℃ …, and so on, and the corresponding pre-stored preset system low-pressure values and preset system high-pressure values are different.
Further, a first difference between the actual system high pressure value and the preset system high pressure value and a second difference between the actual system low pressure value and the preset system low pressure value can be calculated and obtained by acquiring the preset system high pressure value and the preset system low pressure value which are prestored under different corresponding outer ring temperature values.
Step S206, comparing the first difference with the second difference to generate a second comparison result.
Specifically, the second comparison result obtained by comparing the first difference with the second difference includes: the first difference is greater than the second difference, the first difference is less than the second difference, and the first difference is equal to the second difference.
And S208, determining the operation condition of the air conditioner based on the second comparison result.
The operation working conditions of the air conditioner comprise a first operation working condition, a second operation working condition and a third operation working condition, wherein under the first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature. Under the second operation condition, the evaporation temperature of the air conditioner is higher than the condensation temperature. And under the third operating condition, the evaporating temperature and the condensing temperature of the air conditioner are in a balanced state, namely the difference value between the evaporating temperature and the condensing temperature is in an allowable range.
Specifically, when the first difference is smaller than the second difference according to the second comparison result, the operation condition of the air conditioner is determined to be the first operation condition. And when the first difference is larger than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the second operation working condition.
And further, when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition.
In this embodiment, a first difference between the actual system high voltage value and the preset system high voltage value is calculated according to the actual system high voltage value and the corresponding preset system high voltage value, and a second difference between the actual system low voltage value and the preset system low voltage value is calculated according to the actual system low voltage value and the corresponding preset system low voltage value. And then comparing the first difference value with the second difference value to generate a second comparison result, and determining the operation condition of the air conditioner based on the second comparison result. The operation condition of the air conditioner is accurately determined according to the actual system high pressure value, the corresponding preset system high pressure value, the actual system low pressure value and the corresponding preset system low pressure value, the operation frequency of the air conditioner and the opening of the electronic expansion valve can be adjusted subsequently according to the determined operation condition, manual adjustment of a user is not needed, unnecessary energy consumption is reduced, and the energy-saving effect of the air conditioner in the operation process is improved.
In an embodiment, as shown in fig. 3, the step of determining the operation condition of the air conditioner, that is, the step of determining the operation condition of the air conditioner based on the second comparison result specifically includes:
step S302, when the first difference is smaller than the second difference according to the second comparison result, determining that the operation working condition of the air conditioner is the first operation working condition.
And under the first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature.
Specifically, when it is determined that the first difference is smaller than the second difference according to the second comparison result, it may be further determined that the condensation temperature of the air conditioner is higher than the evaporation temperature, which indicates that the condensation temperature of the air conditioner is too high under the first operation condition, which is not beneficial to energy saving operation, and it is necessary to reduce the operation frequency of the air conditioner and increase the opening degree of the electronic expansion valve.
And step S304, when the first difference is larger than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the second operation working condition.
And under the second operation working condition, the evaporation temperature of the air conditioner is higher than the condensation temperature.
Specifically, when it is determined that the first difference is greater than the second difference according to the second comparison result, it may be further determined that the evaporation temperature of the air conditioner is higher than the condensation temperature, which indicates that the evaporation temperature of the air conditioner is too high under the second operation condition to meet the user's requirement, and it is necessary to increase the operation frequency of the air conditioner and decrease the opening degree of the electronic expansion valve.
And S306, when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition.
And under the third operation working condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
Specifically, when the first difference is determined to be equal to the second difference according to the second comparison result and the second difference is within the preset range, it is indicated that the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state, the current operation frequency and the current opening size of the electronic expansion valve of the air conditioner can be maintained, and efficient energy-saving operation is achieved.
In this embodiment, the preset range corresponding to the second difference may be [ -2, 2], that is, the second difference may take different values from-2 to 2, and preferably ± 2.
In this embodiment, when the first difference is determined to be smaller than the second difference according to the second comparison result, the operation condition of the air conditioner is determined to be the first operation condition, and when the first difference is determined to be larger than the second difference according to the second comparison result, the operation condition of the air conditioner is determined to be the second operation condition. And when the first difference is determined to be equal to the second difference according to the second comparison result and the second difference is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition. The current operation working condition of the air conditioner is accurately determined according to different conditions of the second comparison result, and then the accurate adjustment of the operation frequency of the air conditioner and the opening degree of the electronic expansion valve can be realized based on the determined different working conditions, so that the unnecessary energy consumption is reduced, and the energy-saving effect of the air conditioner in the operation process is improved.
In one embodiment, as shown in fig. 4, an air conditioner operation control method is provided, which specifically includes the following steps:
1) and acquiring the current set temperature and the return air temperature value.
2) And calculating the temperature difference between the current set temperature and the return air temperature.
3) And comparing the temperature difference value with a preset difference value threshold value to generate a first comparison result.
4) And determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
5) And when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value.
6) And detecting the outer ring temperature value of the air conditioner in real time.
7) And acquiring a preset system high-pressure value and a preset system low-pressure value which are prestored under the corresponding outer ring temperature value.
8) And calculating to obtain a first difference value between the actual system high-voltage value and the preset system high-voltage value according to the actual system high-voltage value and the corresponding preset system high-voltage value.
9) And calculating to obtain a second difference value between the actual system low-pressure value and the preset system low-pressure value according to the actual system low-pressure value and the corresponding preset system low-pressure value.
10) And comparing the first difference value with the second difference value to generate a second comparison result.
11) And when the first difference is smaller than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the first operation working condition.
12) And when the first difference is larger than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the second operation working condition.
13) And when the first difference is determined to be equal to the second difference according to the second comparison result and the second difference is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition.
14) And based on the first operation working condition, reducing the operation frequency of the air conditioner and increasing the opening degree of the electronic expansion valve.
15) And increasing the operation frequency of the air conditioner and reducing the opening degree of the electronic expansion valve based on the second operation working condition.
16) And maintaining the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve based on the third operation working condition.
According to the air conditioner operation control method, the current set temperature and the return air temperature value are obtained, when the condition of self-operation control is determined to be met according to the current temperature and the return air temperature value, the current actual system high pressure value and the actual system low pressure value are obtained, and the operation working condition of the air conditioner is determined according to the actual system high pressure value, the corresponding preset system high pressure value, the actual system low pressure value and the corresponding preset system low pressure value. And then based on the operating condition of the air conditioner, adjusting the operating frequency of the air conditioner and the opening degree of the electronic expansion valve. The method does not excessively depend on manual operation of a user, can automatically and accurately determine the operation condition of the air conditioner according to the system high-pressure value and the system low-pressure value of the air conditioner, further accurately adjusts the operation frequency of the air conditioner and the opening of the electronic expansion valve, reduces unnecessary energy consumption while meeting the actual requirements of the user in different application environments, and improves the energy-saving effect of the air conditioner in the operation process.
It should be understood that, although the steps in the flowcharts related to the above embodiments are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in each flowchart related to the above embodiments may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.
In one embodiment, as shown in fig. 5, there is provided an air conditioner operation control system including: the system comprises a controller 502, a compressor 504 connected to the controller 502, a pressure detection device 506, a temperature detection device 508, and an electronic expansion valve 510. Wherein the controller is configured to:
acquiring a current set temperature and a return air temperature value acquired by the temperature detection equipment 508; when the self-operation control condition is satisfied according to the current temperature and the return air temperature value, the current actual system high-pressure value and the actual system low-pressure value detected by the pressure detection equipment 506 are obtained; determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value; the operation frequency of the compressor 504 of the air conditioner and the opening degree of the electronic expansion valve 510 are adjusted based on the operation condition of the air conditioner.
In the air conditioner operation control system, the current set temperature and the return air temperature value are obtained, when the condition of self-operation control is determined to be met according to the current temperature and the return air temperature value, the current actual system high pressure value and the actual system low pressure value are obtained, and the operation working condition of the air conditioner is determined according to the actual system high pressure value, the corresponding preset system high pressure value, the actual system low pressure value and the corresponding preset system low pressure value. And then based on the operating condition of the air conditioner, adjusting the operating frequency of the air conditioner and the opening degree of the electronic expansion valve. The method does not excessively depend on manual operation of a user, can automatically and accurately determine the operation condition of the air conditioner according to the system high-pressure value and the system low-pressure value of the air conditioner, further accurately adjusts the operation frequency of the air conditioner and the opening of the electronic expansion valve, reduces unnecessary energy consumption while meeting the actual requirements of the user in different application environments, and improves the energy-saving effect of the air conditioner in the operation process.
In one embodiment, as shown in fig. 6, an air conditioner operation control system is provided, where the complete air conditioner operation control system specifically includes: a controller 602, an evaporator 604, a condenser 606, an electronic expansion valve 608, a temperature sensing device 610 disposed on the condenser 606, a compressor 612, a high pressure sensor 614 connected to the compressor 612, and a low pressure sensor 616.
The high pressure sensor 614 and the low pressure sensor 616 are respectively used for detecting an actual system high pressure value and an actual system low pressure value inside the air conditioner, and the temperature detection device 610 is used for detecting an outer ring temperature value and a return air temperature value.
Further, the controller 602 is configured to: acquiring a current set temperature and a return air temperature value acquired by temperature detection equipment 610; when the self-operation control condition is met according to the current temperature and the return air temperature value, acquiring an actual system high-pressure value and an actual system low-pressure value in the air conditioner, which are detected by a high-pressure sensor 614 and a low-pressure sensor 616; determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value; the operation frequency of the compressor 612 of the air conditioner and the opening degree of the electronic expansion valve 608 are adjusted based on the operation condition of the air conditioner.
Wherein the controller 602 is further configured to: the method includes the steps of acquiring an outer ring temperature value of the air conditioner detected by the temperature detection device 610 in real time, and acquiring a preset system high pressure value and a preset system low pressure value which are prestored under the corresponding outer ring temperature value.
In the air conditioner operation control system, the current set temperature and the return air temperature value are obtained, when the condition of self-operation control is determined to be met according to the current temperature and the return air temperature value, the current actual system high pressure value and the actual system low pressure value are obtained, and the operation working condition of the air conditioner is determined according to the actual system high pressure value, the corresponding preset system high pressure value, the actual system low pressure value and the corresponding preset system low pressure value. And then based on the operating condition of the air conditioner, adjusting the operating frequency of the air conditioner and the opening degree of the electronic expansion valve. The method does not excessively depend on manual operation of a user, can automatically and accurately determine the operation condition of the air conditioner according to the system high-pressure value and the system low-pressure value of the air conditioner, further accurately adjusts the operation frequency of the air conditioner and the opening of the electronic expansion valve, reduces unnecessary energy consumption while meeting the actual requirements of the user in different application environments, and improves the energy-saving effect of the air conditioner in the operation process.
In one embodiment, the controller is further configured to:
calculating to obtain a first difference value between the actual system high-voltage value and the preset system high-voltage value according to the actual system high-voltage value and the corresponding preset system high-voltage value; calculating to obtain a second difference value between the actual system low-pressure value and the preset system low-pressure value according to the actual system low-pressure value and the corresponding preset system low-pressure value; comparing the first difference value with the second difference value to generate a second comparison result; and determining the operation condition of the air conditioner based on the second comparison result.
In this embodiment, realized according to actual system high pressure value and the corresponding system high pressure value of predetermineeing, actual system low pressure value and the corresponding system low pressure value of predetermineeing, the operating condition of air conditioner is accurately determined, and follow-up operating condition that can carry out the operating frequency and the electronic expansion valve aperture of air conditioner according to determining is adjusted, and need not user manual regulation, reduces unnecessary energy consumption, promotes the energy-conserving effect of air conditioner in the operation process.
In one embodiment, the controller is further configured to:
when the first difference is smaller than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the first operation working condition; under a first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature;
when the first difference is larger than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as a second operation working condition; under the second operation working condition, the evaporation temperature of the air conditioner is higher than the condensation temperature;
when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition; and under the third operation working condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
In this embodiment, realized according to the different conditions of second comparison result, accurately determining the current operating mode of air conditioner, and then follow-up can be based on the different operating modes that determine, realize the accurate regulation to the operating frequency of air conditioner and electronic expansion valve's aperture, reduce unnecessary energy consumption, promote the energy-conserving effect of air conditioner in the operation process.
In one embodiment, the controller is further configured to:
calculating the temperature difference between the current set temperature and the return air temperature; comparing the temperature difference value with a preset difference value threshold value to generate a first comparison result; and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
In one embodiment, the controller is further configured to:
based on the first operation working condition, reducing the operation frequency of the air conditioner and increasing the opening degree of the electronic expansion valve; or based on the second operation working condition, increasing the operation frequency of the air conditioner and reducing the opening degree of the electronic expansion valve; or based on the third operation working condition, maintaining the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve.
For specific limitations of the air conditioner operation control system, reference may be made to the above limitations of the air conditioner operation control method, which are not described herein again. Each module in the air conditioner operation control system may be wholly or partially implemented by software, hardware, or a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be an air conditioner, and the internal structure thereof may be as shown in fig. 7. The air conditioner comprises an air conditioner main body, a compressor, a pressure detection device, a temperature detection device, an electronic expansion valve, a memory and a controller, wherein the compressor, the pressure detection device, the temperature detection device, the electronic expansion valve, the memory and the controller are arranged on the air conditioner main body. The compressor, the pressure detection device, the temperature detection device and the electronic expansion valve are connected with the controller. Wherein the controller of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The computer program is executed by a controller to implement an air conditioner operation control method.
Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, an air conditioner is provided, which includes an air conditioner main body, a compressor disposed on the air conditioner main body, a pressure detection device, a temperature detection device, an electronic expansion valve, a memory, and a controller; the compressor, the pressure detection equipment, the temperature detection equipment and the electronic expansion valve are connected with the controller; the memory stores a computer program which when executed by the controller implements the steps of:
acquiring a current set temperature and a return air temperature value;
when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
In one embodiment, the controller when executing the computer program further performs the steps of:
calculating the temperature difference between the current set temperature and the return air temperature;
comparing the temperature difference value with a preset difference value threshold value to generate a first comparison result;
and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
In one embodiment, the controller when executing the computer program further performs the steps of:
calculating to obtain a first difference value between the actual system high-voltage value and the preset system high-voltage value according to the actual system high-voltage value and the corresponding preset system high-voltage value;
calculating to obtain a second difference value between the actual system low-pressure value and the preset system low-pressure value according to the actual system low-pressure value and the corresponding preset system low-pressure value;
comparing the first difference value with the second difference value to generate a second comparison result;
and determining the operation condition of the air conditioner based on the second comparison result.
In one embodiment, the controller when executing the computer program further performs the steps of:
when the first difference is smaller than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the first operation working condition; under a first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature;
when the first difference is larger than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as a second operation working condition; under the second operation working condition, the evaporation temperature of the air conditioner is higher than the condensation temperature;
when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition; and under the third operation working condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
In one embodiment, the controller when executing the computer program further performs the steps of:
based on the first operation working condition, reducing the operation frequency of the air conditioner and increasing the opening degree of the electronic expansion valve;
or based on the second operation working condition, increasing the operation frequency of the air conditioner and reducing the opening degree of the electronic expansion valve;
or based on the third operation working condition, maintaining the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve.
In one embodiment, the controller when executing the computer program further performs the steps of:
detecting the outer ring temperature value of the air conditioner in real time;
and acquiring a preset system high-pressure value and a preset system low-pressure value which are prestored under the corresponding outer ring temperature value.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring a current set temperature and a return air temperature value;
when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
In one embodiment, the computer program when executed by the processor further performs the steps of:
calculating the temperature difference between the current set temperature and the return air temperature;
comparing the temperature difference value with a preset difference value threshold value to generate a first comparison result;
and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
In one embodiment, the computer program when executed by the processor further performs the steps of:
calculating to obtain a first difference value between the actual system high-voltage value and the preset system high-voltage value according to the actual system high-voltage value and the corresponding preset system high-voltage value;
calculating to obtain a second difference value between the actual system low-pressure value and the preset system low-pressure value according to the actual system low-pressure value and the corresponding preset system low-pressure value;
comparing the first difference value with the second difference value to generate a second comparison result;
and determining the operation condition of the air conditioner based on the second comparison result.
In one embodiment, the computer program when executed by the processor further performs the steps of:
when the first difference is smaller than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as the first operation working condition; under a first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature;
when the first difference is larger than the second difference according to the second comparison result, determining the operation working condition of the air conditioner as a second operation working condition; under the second operation working condition, the evaporation temperature of the air conditioner is higher than the condensation temperature;
when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within the preset range, determining the operation working condition of the air conditioner to be a third operation working condition; and under the third operation working condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
In one embodiment, the computer program when executed by the processor further performs the steps of:
based on the first operation working condition, reducing the operation frequency of the air conditioner and increasing the opening degree of the electronic expansion valve;
or based on the second operation working condition, increasing the operation frequency of the air conditioner and reducing the opening degree of the electronic expansion valve;
or based on the third operation working condition, maintaining the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve.
In one embodiment, the computer program when executed by the processor further performs the steps of:
detecting the outer ring temperature value of the air conditioner in real time;
and acquiring a preset system high-pressure value and a preset system low-pressure value which are prestored under the corresponding outer ring temperature value.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An operation control method of an air conditioner, the method comprising:
acquiring a current set temperature and a return air temperature value;
when the self-operation control condition is determined to be met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
2. The method of claim 1, further comprising, after said obtaining the current set temperature and return air temperature values:
calculating the temperature difference between the current set temperature and the return air temperature;
comparing the temperature difference with a preset difference threshold value to generate a first comparison result;
and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
3. The method according to claim 1 or 2, wherein the determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value, and the actual system low pressure value and the corresponding preset system low pressure value comprises:
calculating to obtain a first difference value between the actual system high-voltage value and a preset system high-voltage value according to the actual system high-voltage value and a corresponding preset system high-voltage value;
calculating to obtain a second difference value between the actual system low-pressure value and a preset system low-pressure value according to the actual system low-pressure value and a corresponding preset system low-pressure value;
comparing the first difference value with the second difference value to generate a second comparison result;
and determining the operation condition of the air conditioner based on the second comparison result.
4. The method according to claim 3, wherein the determining the operation condition of the air conditioner based on the second comparison result comprises:
when the first difference is smaller than the second difference according to the second comparison result, determining that the operation working condition of the air conditioner is a first operation working condition; under the first operation working condition, the condensation temperature of the air conditioner is higher than the evaporation temperature;
when the first difference is larger than the second difference according to the second comparison result, determining that the operation working condition of the air conditioner is a second operation working condition; under the second operation working condition, the evaporation temperature of the air conditioner is higher than the condensation temperature;
when the first difference value is determined to be equal to the second difference value according to the second comparison result and the second difference value is within a preset range, determining that the operation working condition of the air conditioner is a third operation working condition; and under the third operation working condition, the evaporation temperature and the condensation temperature of the air conditioner are in a balanced state.
5. The method of claim 4, wherein the adjusting the operating frequency of the air conditioner and the opening degree of the electronic expansion valve based on the operating condition of the air conditioner comprises:
based on the first operation working condition, reducing the operation frequency of the air conditioner and increasing the opening degree of the electronic expansion valve;
or based on the second operation working condition, increasing the operation frequency of the air conditioner and reducing the opening degree of the electronic expansion valve;
or based on the third operation working condition, maintaining the current operation frequency of the air conditioner and the current opening size of the electronic expansion valve.
6. The method of claim 1 or 2, wherein when it is determined that a self-operation control condition is satisfied based on the current temperature and the return air temperature value, the method further comprises:
detecting the outer ring temperature value of the air conditioner in real time;
and acquiring a preset system high-pressure value and a preset system low-pressure value which are prestored under the corresponding outer ring temperature value.
7. An air conditioner operation control system, comprising: the system comprises a controller, a compressor, pressure detection equipment, temperature detection equipment and an electronic expansion valve, wherein the compressor, the pressure detection equipment, the temperature detection equipment and the electronic expansion valve are connected with the controller; wherein the controller is to:
acquiring a current set temperature and a return air temperature value acquired by the temperature detection equipment;
when the self-operation control condition is met according to the current temperature and the return air temperature value, acquiring a current actual system high-pressure value and an actual system low-pressure value detected by the pressure detection equipment;
determining the operation condition of the air conditioner according to the actual system high pressure value and the corresponding preset system high pressure value as well as the actual system low pressure value and the corresponding preset system low pressure value;
and adjusting the operation frequency of a compressor of the air conditioner and the opening degree of the electronic expansion valve based on the operation condition of the air conditioner.
8. The system of claim 7, wherein the controller is further configured to:
calculating the temperature difference between the current set temperature and the return air temperature; comparing the temperature difference with a preset difference threshold value to generate a first comparison result; and determining whether the temperature difference value meets the self-operation control condition or not according to the first comparison result.
9. An air conditioner comprises an air conditioner main body, a compressor, a pressure detection device, a temperature detection device, an electronic expansion valve, a memory and a controller, wherein the compressor, the pressure detection device, the temperature detection device, the electronic expansion valve, the memory and the controller are arranged on the air conditioner main body; the compressor, the pressure detection device, the temperature detection device and the electronic expansion valve are connected with the controller; the memory stores a computer program, wherein the steps of the method of any of claims 1 to 6 are implemented when the computer program is executed by the controller.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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| JP2003262385A (en) * | 2002-03-12 | 2003-09-19 | Hitachi Ltd | Air conditioner |
| CN104048388A (en) * | 2014-07-10 | 2014-09-17 | 珠海格力电器股份有限公司 | Control method and device and air conditioner |
| CN106440591A (en) * | 2016-10-28 | 2017-02-22 | 珠海格力电器股份有限公司 | Control method for high-pressure ratio of air conditioner, controller and air conditioner control system |
| CN109798642A (en) * | 2019-01-28 | 2019-05-24 | 广东美的暖通设备有限公司 | The control method and device of multi-line system |
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| JP2003262385A (en) * | 2002-03-12 | 2003-09-19 | Hitachi Ltd | Air conditioner |
| CN104048388A (en) * | 2014-07-10 | 2014-09-17 | 珠海格力电器股份有限公司 | Control method and device and air conditioner |
| CN106440591A (en) * | 2016-10-28 | 2017-02-22 | 珠海格力电器股份有限公司 | Control method for high-pressure ratio of air conditioner, controller and air conditioner control system |
| CN109798642A (en) * | 2019-01-28 | 2019-05-24 | 广东美的暖通设备有限公司 | The control method and device of multi-line system |
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