阅读说明：本技术 多联机空调器及其控制方法以及可读存储介质 (Multi-split air conditioner, control method thereof and readable storage medium ) 是由 陶骙 王正兴 黎顺全 李健锋 朱声浩 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种多联机空调器及其控制方法以及可读存储介质。其中,多联机空调器的控制方法包括：在存在至少一台室内机运行制冷模式且存在至少一台室内机运行除湿再热模式时,获取用户的制冷需求和除湿再热需求,运行制冷模式的室内机的第一电子膨胀阀处于关闭状态,运行除湿再热模式的室内机的第一电子膨胀阀处于开启状态；根据所述制冷需求和所述除湿再热需求在所述制冷模式以及除湿再热模式中确定优先运行模式；按照所述优先运行模式对应的室内机的工况参数调整所述压缩机的频率。如此,在同时存在制冷需求和除湿再热需求时,能够合理满足用户的实际需求,提升用户体验感。(The invention discloses a multi-split air conditioner, a control method thereof and a readable storage medium. The control method of the multi-split air conditioner comprises the following steps: when at least one indoor unit runs in a refrigeration mode and at least one indoor unit runs in a dehumidification and reheating mode, acquiring refrigeration requirements and dehumidification and reheating requirements of users, wherein a first electronic expansion valve of the indoor unit running in the refrigeration mode is in a closed state, and a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode is in an open state; determining a priority operation mode in the cooling mode and the dehumidification reheating mode according to the cooling demand and the dehumidification reheating demand; and adjusting the frequency of the compressor according to the working condition parameters of the indoor unit corresponding to the priority operation mode. So, when having refrigeration demand and dehumidification reheat demand simultaneously, can rationally satisfy user's actual demand, promote user experience and feel.)

1. The control method of the multi-split air conditioner is characterized in that the multi-split air conditioner comprises an outdoor unit and at least two indoor units, wherein the outdoor unit comprises a compressor, a four-way valve and an outdoor heat exchanger, and each indoor unit comprises a first heat exchanger, a second heat exchanger, a first electronic expansion valve and a second electronic expansion valve; four interfaces of the four-way valve are respectively connected with an exhaust port of the compressor, an outdoor heat exchanger, a first heat exchanger and a return air port of the compressor, a first interface of the second heat exchanger is connected with the exhaust port of the compressor, a second interface of the second heat exchanger is connected between the first heat exchanger and the outdoor heat exchanger after passing through the second electronic expansion valve, the first interface of the first heat exchanger is connected with the four-way valve, and the second interface of the first heat exchanger is connected with the outdoor heat exchanger after passing through the first electronic expansion valve; the control method of the multi-split air conditioner comprises the following steps:

when at least one indoor unit runs in a refrigeration mode and at least one indoor unit runs in a dehumidification and reheating mode, acquiring refrigeration requirements and dehumidification and reheating requirements of users, wherein a first electronic expansion valve of the indoor unit running in the refrigeration mode is in a closed state, and a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode is in an open state;

determining a priority operation mode in the cooling mode and the dehumidification reheating mode according to the cooling demand and the dehumidification reheating demand;

and adjusting the frequency of the compressor of the multi-split air conditioner according to the working condition parameters of the indoor unit corresponding to the priority operation mode.

2. The method for controlling a multi-split air conditioner as claimed in claim 1, wherein the step of acquiring a cooling demand and a dehumidifying and reheating demand of a user comprises:

summing rated refrigerating capacity of the indoor unit operating in the refrigerating mode to obtain the refrigerating requirement;

and summing rated refrigerating capacities of the indoor units in the dehumidification and reheating operation mode to obtain the dehumidification and reheating requirement.

3. The method of controlling a multi-split air conditioner as claimed in claim 2, wherein the step of determining a priority operation mode among the cooling mode and the dehumidification reheat mode according to the cooling demand and the dehumidification reheat demand comprises:

obtaining a ratio of the refrigeration demand to the dehumidification reheat demand;

when the ratio is higher than or equal to a preset ratio, determining the refrigeration mode as a priority operation mode;

and when the ratio is lower than a preset ratio, determining the dehumidification reheating mode as a priority operation mode.

4. The method for controlling a multi-split air conditioner as claimed in claim 1, wherein the adjusting the frequency of the compressor according to the operating condition parameter of the indoor unit corresponding to the priority operation mode comprises:

acquiring the ambient temperature, the relative humidity and the set temperature of the indoor environment where the indoor unit in the refrigeration mode is located, wherein when the priority operation mode is the refrigeration mode, the working condition parameters comprise the ambient temperature, the relative humidity and the set temperature of the indoor environment where the indoor unit is located;

and adjusting the frequency of the compressor according to the ambient temperature, the relative humidity and the set temperature.

5. The method of controlling a multi-split air conditioner as claimed in claim 4, wherein the adjusting of the operating frequency of the compressors according to the ambient temperature, the relative humidity, and the set temperature comprises:

when the ambient temperature of all indoor units in the refrigeration mode is higher than the preset temperature or the relative humidity of all indoor units in the refrigeration mode is higher than the preset humidity, adjusting the frequency of a compressor of the multi-split air conditioner according to the minimum set temperature in the set temperatures;

and when the ambient temperature of the at least one indoor unit operating in the refrigeration mode is less than or equal to a preset temperature and the relative humidity of the at least one indoor unit operating in the refrigeration mode is less than or equal to a preset humidity, adjusting the frequency of a compressor of the multi-split air conditioner according to the maximum relative humidity in the relative humidities.

6. The method for controlling a multi-split air conditioner as claimed in claim 1, wherein the adjusting the frequency of the compressor according to the operating condition parameter of the indoor unit corresponding to the priority operation mode comprises:

the method comprises the steps that the set temperature and the dew point temperature of an indoor unit in a dehumidification and reheating mode are obtained, and the heat transfer temperature difference of a second heat exchanger of the indoor unit in the dehumidification and reheating mode is obtained, and when the prior operation mode is the dehumidification and reheating mode, working condition parameters comprise the set temperature, the dew point temperature and the heat transfer temperature difference of the second heat exchanger of the indoor unit in the dehumidification and reheating mode;

and adjusting the frequency of the compressor of the multi-split air conditioner according to the set temperature, the dew point temperature and the heat transfer temperature difference.

7. The control method of a multi-split air conditioner as set forth in claim 1, further comprising the steps of:

acquiring an evaporation parameter and a target evaporation parameter of an indoor unit operating in a refrigeration mode, wherein the target evaporation parameter is determined according to the relative humidity of the indoor environment where the indoor unit operating in the refrigeration mode is located, and the evaporation parameter comprises evaporation pressure or evaporation temperature;

when the evaporation parameter is greater than or equal to the target evaporation parameter, adjusting the opening degree of a first electronic expansion valve of the indoor unit in the refrigeration mode according to a preset superheat degree;

and when the evaporation parameter is smaller than the target evaporation parameter, determining the opening degree of a first electronic expansion valve of the indoor unit in the operation refrigeration mode according to the relative humidity.

8. The control method of a multi-split air conditioner as set forth in claim 1, further comprising:

acquiring the relative humidity and the air outlet temperature of the indoor environment where the indoor unit in the dehumidification and reheating mode operates and the supercooling degree of a first heat exchanger of the indoor unit in the dehumidification and reheating mode operates;

and adjusting the opening degree of a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode according to the relative humidity, and adjusting the opening degree of a second electronic expansion valve of the indoor unit running in the dehumidification and reheating mode according to the outlet air temperature and the supercooling degree.

9. A multi-split air conditioner comprising a memory, a processor, and a control program of the multi-split air conditioner stored in the memory and executable on the processor, wherein the processor implements the steps of the control method of the multi-split air conditioner as set forth in any one of claims 1 to 8 when executing the control program of the multi-split air conditioner.

10. A readable storage medium having a control program of a multi-split air conditioner stored thereon, wherein the control program of the multi-split air conditioner, when executed by a processor, implements the steps of the method for controlling a multi-split air conditioner according to any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of air conditioners, in particular to a multi-split air conditioner, a control method of the multi-split air conditioner and a readable storage medium.

Background

In order to meet the use requirements of users on different indoor units of the multi-split air conditioner, the different indoor units of the multi-split air conditioner can respectively operate a refrigeration mode, a no-wind-sense mode and the like, so that the users can select different operation modes according to the requirements of the users, and the individualized requirements of the users on the multi-split air conditioner are met. However, the control requirements for the outdoor units of the multi-split air conditioner are different in different operation modes, for example, a lower evaporation temperature needs to be provided in a cooling mode; in the no-wind mode, a higher evaporation temperature needs to be provided. One outdoor unit of the multi-split air conditioner can only correspond to one control logic, and when the indoor unit operates in a plurality of different operation modes, the commonly adopted control logic mainly provides lower evaporation temperature according to refrigeration requirements. At this time, due to the adoption of a fixed control logic, the actual requirements of users on the multi-split air conditioner cannot be reasonably met.

Disclosure of Invention

The invention mainly aims to provide a multi-split air conditioner, a control method thereof and a readable storage medium, and aims to reasonably meet the use requirements of users on the multi-split air conditioner so as to improve the user experience.

In order to achieve the above object, the present invention provides a method for controlling a multi-split air conditioner, the method comprising the steps of:

when at least one indoor unit runs in a refrigeration mode and at least one indoor unit runs in a dehumidification and reheating mode, acquiring refrigeration requirements and dehumidification and reheating requirements of users, wherein a first electronic expansion valve of the indoor unit running in the refrigeration mode is in a closed state, and a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode is in an open state;

determining a priority operation mode in the cooling mode and the dehumidification reheating mode according to the cooling demand and the dehumidification reheating demand;

and adjusting the frequency of the compressor according to the working condition parameters of the indoor unit corresponding to the priority operation mode.

Optionally, the step of acquiring the cooling demand and the dehumidification reheating demand of the user comprises:

summing rated refrigerating capacity of the indoor unit operating in the refrigerating mode to obtain the refrigerating requirement;

and summing rated refrigerating capacities of the indoor units in the dehumidification and reheating operation mode to obtain the dehumidification and reheating requirement.

Optionally, the step of determining a priority operation mode in the cooling mode and the dehumidification reheat mode according to the cooling demand and the dehumidification reheat demand includes:

obtaining a ratio of the refrigeration demand to the dehumidification reheat demand;

when the ratio is higher than or equal to a preset ratio, determining the refrigeration mode as a priority operation mode;

and when the ratio is lower than a preset ratio, determining the dehumidification reheating mode as a priority operation mode.

Optionally, the step of adjusting the frequency of the compressor according to the operating condition parameter of the indoor unit corresponding to the priority operation mode includes:

acquiring the ambient temperature, the relative humidity and the set temperature of the indoor environment where the indoor unit in the refrigeration mode is located, wherein when the priority operation mode is the refrigeration mode, the working condition parameters comprise the ambient temperature, the relative humidity and the set temperature of the indoor environment where the indoor unit is located;

and adjusting the frequency of the compressor according to the ambient temperature, the relative humidity and the set temperature.

Optionally, the step of adjusting the operating frequency of the compressor according to the ambient temperature, the relative humidity and the set temperature comprises:

when the ambient temperature of all indoor units in the refrigeration mode is higher than the preset temperature or the relative humidity of all indoor units in the refrigeration mode is higher than the preset humidity, adjusting the frequency of a compressor of the multi-split air conditioner according to the minimum set temperature in the set temperatures;

and when the ambient temperature of the at least one indoor unit operating in the refrigeration mode is less than or equal to a preset temperature and the relative humidity of the at least one indoor unit operating in the refrigeration mode is less than or equal to a preset humidity, adjusting the frequency of a compressor of the multi-split air conditioner according to the maximum relative humidity in the relative humidities.

Optionally, the step of adjusting the frequency of the compressor according to the operating condition parameter of the indoor unit corresponding to the priority operation mode includes:

the method comprises the steps that the set temperature and the dew point temperature of an indoor unit in a dehumidification and reheating mode are obtained, and the heat transfer temperature difference of a second heat exchanger of the indoor unit in the dehumidification and reheating mode is obtained, and when the prior operation mode is the dehumidification and reheating mode, working condition parameters comprise the set temperature, the dew point temperature and the heat transfer temperature difference of the second heat exchanger of the indoor unit in the dehumidification and reheating mode;

and adjusting the frequency of the compressor of the multi-split air conditioner according to the set temperature, the dew point temperature and the heat transfer temperature difference.

Optionally, the method for controlling a multi-split air conditioner further includes:

acquiring an evaporation parameter and a target evaporation parameter of an indoor unit operating in a refrigeration mode, wherein the target evaporation parameter is determined according to the relative humidity of the indoor environment where the indoor unit operating in the refrigeration mode is located, and the evaporation parameter comprises evaporation pressure or evaporation temperature;

when the evaporation parameter is greater than or equal to the target evaporation parameter, adjusting the opening degree of a first electronic expansion valve of the indoor unit in the refrigeration mode according to a preset superheat degree;

and when the evaporation parameter is smaller than the target evaporation parameter, determining the opening degree of a first electronic expansion valve of the indoor unit in the operation refrigeration mode according to the relative humidity.

Optionally, the method for controlling a multi-split air conditioner further includes:

acquiring the relative humidity and the air outlet temperature of the indoor environment where the indoor unit in the dehumidification and reheating mode operates and the supercooling degree of a first heat exchanger of the indoor unit in the dehumidification and reheating mode operates;

and adjusting the opening degree of a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode according to the relative humidity, and adjusting the opening degree of a second electronic expansion valve of the indoor unit running in the dehumidification and reheating mode according to the outlet air temperature and the supercooling degree.

In addition, to achieve the above object, the present invention further provides a multi-split air conditioner, including a memory, a processor, and a control program of the multi-split air conditioner stored on and operable on the processor, where the processor implements the steps of the control method of the multi-split air conditioner as described above when executing the control program of the multi-split air conditioner.

In addition, to achieve the above object, the present invention also provides a readable storage medium having stored thereon a control program of a multi-split air conditioner, which, when executed by a processor, implements the steps of the control method of the multi-split air conditioner as described above.

In the embodiment of the invention, when at least one indoor unit runs in a refrigeration mode and at least one indoor unit runs in a dehumidification and reheating mode, the refrigeration requirement and the dehumidification and reheating requirement of a user are obtained, wherein a first electronic expansion valve of the indoor unit running in the refrigeration mode is in a closed state, a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode is in an open state, a priority operation mode is determined in the refrigeration mode and the dehumidification and reheating mode according to the refrigeration requirement and the dehumidification and reheating requirement, and the frequency of a compressor is adjusted according to working condition parameters of the indoor unit corresponding to the priority operation mode, so that when the refrigeration requirement and the dehumidification and reheating requirement exist at the same time, the higher priority requirement can be met according to the user requirement, the actual requirement of the user is met to the greatest extent, and the user experience is improved.

Drawings

Fig. 1 is a schematic diagram of a hardware architecture of a multi-split air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic system structure diagram of a multi-split air conditioner according to the present invention;

fig. 3 is a flowchart illustrating a first embodiment of a control method of a multi-split air conditioner according to the present invention;

fig. 4 is a flowchart illustrating a control method of a multi-split air conditioner according to a second embodiment of the present invention;

fig. 5 is a flowchart illustrating a control method of a multi-split air conditioner according to a third embodiment of the present invention;

FIG. 6 is a graph showing the relationship between the humidity range and the target superheat according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Outdoor machine	20	Indoor machine
11	Compressor	21	First heat exchanger
				12	Four-way valve	22	Second heat exchanger
13	Outdoor heat exchanger	23	First electronic expansion valve
				24	Second electronic expansion valve

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main solution of the invention is: when at least one indoor unit runs in a refrigeration mode and at least one indoor unit runs in a dehumidification and reheating mode, acquiring refrigeration requirements and dehumidification and reheating requirements of users, wherein a first electronic expansion valve of the indoor unit running in the refrigeration mode is in a closed state, and a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode is in an open state; determining a priority operation mode in the cooling mode and the dehumidification reheating mode according to the cooling demand and the dehumidification reheating demand; and adjusting the frequency of the compressor according to the working condition parameters of the indoor unit corresponding to the priority operation mode.

The multi-split air conditioner supports different indoor units to operate in different operation modes, the control logics of the outdoor units of the multi-split air conditioner corresponding to the different operation modes of the indoor units are different, and the outdoor units of the multi-split air conditioner can only operate according to one control logic at the same time. Thus, when there are indoor units operating in different operation modes, the actual requirements of the user cannot be reasonably met. Therefore, the solution provided by the invention aims to better meet the actual needs of users so as to improve the experience of the users.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-split air conditioner in a hardware operating environment according to an embodiment of the present invention.

As shown in fig. 1, the multi-split air conditioner may include: a communication bus 1002, a processor 1001, such as a CPU, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the multi-split air conditioner configuration shown in fig. 1 does not constitute a limitation of the multi-split air conditioner, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

In the multi-split air conditioner shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1005 and perform the following steps associated with the respective embodiments of the control method of the air conditioner.

Based on the hardware architecture of the air conditioner, embodiments of the control method of the multi-split air conditioner according to the present invention are provided, and optionally, a system structure of the multi-split air conditioner according to the embodiments is shown in fig. 2.

The multi-split air conditioner includes an outdoor unit 10 and at least two indoor units 20. The outdoor unit 10 includes a compressor 11, a four-way valve 12, and an outdoor heat exchanger 13, and each of the indoor units 20 includes a first heat exchanger 21, a second heat exchanger 22, a first electronic expansion valve 23, and a second electronic expansion valve 24; four interfaces of the four-way valve 12 are respectively connected with an exhaust port of the compressor 11, the outdoor heat exchanger 13, the first heat exchanger 21 and a return air port of the compressor 11, a first interface of the second heat exchanger 22 is connected with the exhaust port of the compressor 11, a second interface of the second heat exchanger 22 passes through the second electronic expansion valve 24 and then is connected between the first heat exchanger 21 and the outdoor heat exchanger 13, a first interface of the first heat exchanger 21 is connected with the four-way valve 12, and a second interface of the first heat exchanger 21 passes through the first electronic expansion valve 23 and then is connected with the outdoor heat exchanger 13. The outdoor unit further includes a gas-liquid separator, and the discharge port of the compressor 11 is connected to the gas-liquid separator.

Based on the above structure, when this embodiment multi-split air conditioner operates the refrigeration mode, multi-split air conditioner's refrigeration principle does: after being discharged from the exhaust port of the compressor 11, the high-temperature and high-pressure refrigerant flows to the outdoor heat exchanger 13 through the four-way valve 12, after condensing and heat exchanging in the outdoor heat exchanger 13, the refrigerant flows into the first heat exchanger 21 through the first electronic expansion valve 23, and after evaporating and heat exchanging in the first heat exchanger 21, the refrigerant flows back to the compressor 11 through the four-way valve 12. It can be understood that, in the multi-split air conditioner of the embodiment, when the multi-split air conditioner operates in the cooling mode, the second electronic expansion valve 24 on the second heat exchanger 22 is in a closed state, and no heat exchange refrigerant is present in the second heat exchanger 22.

Based on above-mentioned structure, when this embodiment multi-connected air conditioner operation dehumidification heating mode, multi-connected air conditioner's dehumidification heating principle does: after the high-temperature and high-pressure refrigerant is discharged from the exhaust port of the compressor 11, part of the refrigerant flows to the outdoor heat exchanger 13 through the four-way valve 12, after heat exchange of the refrigerant in the outdoor heat exchanger 13, the refrigerant flows into the first heat exchanger 21 through the first electronic expansion valve 23, after evaporation and heat exchange of the first heat exchanger 21, the refrigerant flows back to the compressor 11 through the four-way valve 12, a refrigeration and dehumidification loop is formed, and indoor air is dehumidified. Part of the refrigerant discharged from the compressor 11 directly flows to the second heat exchanger 22 from a pipeline connecting the compressor 11 and the second heat exchanger 22, and after condensing and heat exchanging in the second heat exchanger 22, the high-temperature and high-pressure refrigerant flows to the first heat exchanger 21 through the second electronic expansion valve 24, joins with the refrigerant flowing in the outdoor heat exchanger 13, evaporates and exchanges heat in the first heat exchanger 21, and then flows back to the compressor 11 through the four-way valve 12, so as to form a heating circulation loop. Optionally, the circulation circuit of the first heat exchanger 21 and the circulation circuit of the second indoor unit 20 operate simultaneously, so as to form the dehumidification and reheating mode.

It is understood that the dehumidification and reheat mode means that the air after the cooling and dehumidification is heated by the second heat exchanger 22 and then discharged to the indoor. As described above, the second heat exchanger 22 and the first heat exchanger 21 are disposed in each indoor unit 20, and the second heat exchanger 22 is located between the first heat exchanger 21 and the air outlet of the air conditioner, so that after the first heat exchanger 21 absorbs moisture in air, and before the air blows to the air outlet, the second heat exchanger 22 heats the air, thereby increasing the air temperature and making the temperature of the air at the air outlet higher.

The reason why the air conditioner operates in the no-wind mode is that when the air conditioner is used for cooling, too low temperature directly blows to a human body, so that people feel uncomfortable and the comfort level is reduced. Therefore, some air conditioners can automatically start the no-wind mode under the condition of low temperature, so that wind is prevented from blowing by people.

However, the wind-free feeling is usually achieved by reducing the wind speed and/or reducing the wind volume of the wind outlet (e.g. turning the wind deflector to a human-avoiding angle, the angle is usually small, the wind volume is small, or by providing the wind guide opening with a smaller aperture on the wind deflector). Because the wind speed is reduced or the air output is reduced, the air with too low temperature in the indoor unit 20 is gathered at the air outlet, condensation is easily formed at the air outlet, and particularly, when the air humidity is higher, the probability of condensation is higher. Therefore, the air conditioner generally needs to be started without wind feeling under the conditions of low indoor temperature and low environmental humidity, and if the indoor humidity is always high, the air conditioner cannot be started in a wind feeling-free mode, so that the comfort level is influenced to a certain degree.

In this embodiment, based on the above multi-split air conditioner having the heating cycle loop formed by the second heat exchanger 22, the temperature of the air cooled by the first heat exchanger 21 is raised under the heating action of the second heat exchanger 22, so that when the air is gathered at the air outlet, even if the air humidity is high, no condensation is generated when the air temperature is higher than the dew point temperature. Therefore, in the present embodiment, the condition for the no-wind-feeling start can be relaxed, the no-wind-feeling mode can be started as long as the indoor temperature is too low, and the second electronic expansion valve 24 on the flow path of the second heat exchanger 22 in the first indoor unit 20 may be opened to prevent the generation of condensation after the no-wind-feeling mode is started. That is to say, the multi-split air conditioner of the embodiment is easier to start the no-wind-sensation mode, and the risk of air outlet condensation is reduced after the no-wind-sensation mode is started, so that the comfort level is increased.

With reference to fig. 3, a first embodiment of a control method of a multi-split air conditioner is provided, which includes the following steps:

step S10: when at least one indoor unit runs in a refrigeration mode and at least one indoor unit runs in a dehumidification and reheating mode, acquiring refrigeration requirements and dehumidification and reheating requirements of users, wherein a first electronic expansion valve of the indoor unit running in the refrigeration mode is in a closed state, and a first electronic expansion valve of the indoor unit running in the dehumidification and reheating mode is in an open state;

it should be noted that the execution terminal in this embodiment may be a control device of the multi-split air conditioner, or may be the local end of the multi-split air conditioner. In this embodiment, the control method of the multi-split air conditioner is performed at the local end of the air conditioner for example.

During the operation of the multi-split air conditioner, the opening degrees of the first electronic expansion valve 23 and the second electronic expansion valve 24 are controlled, so that each indoor unit 20 can synchronously operate different operation modes, such as a cooling mode, a dehumidification and reheating mode, and the like. For example, when the first electronic expansion valve 23 is closed (or opened at a smaller opening degree to prevent the refrigerant from accumulating) and the second electronic expansion valve 24 is opened, the indoor unit 20 operates in the cooling mode; when the first electronic expansion valve 23 is opened and the second electronic expansion valve 24 is opened, the indoor unit 20 operates the dehumidification and reheat mode.

Optionally, when the indoor unit 20 of the multi-split air conditioner operates in the cooling mode, the air deflector of the indoor unit may be controlled to rotate to a preset non-wind-sensing angle, so that air blown to the indoor environment is diffused, that is, the non-wind-sensing mode is operated, thereby preventing cold wind from blowing people and improving comfort of users.

Because the evaporation temperature demand that the refrigeration mode corresponds is different than the evaporation temperature demand that dehumidification reheat mode corresponds, the frequency of the compressor 11 that corresponds is also different, and compressor 11 can only be operated according to a control mode at the same time, can't satisfy refrigeration demand and dehumidification reheat demand simultaneously. At this time, in order to operate the compressor 11 reasonably to meet the actual demand of the user more reasonably, at least one indoor unit 20 may be operated in the cooling mode in the multi-split air conditioner, and when at least one indoor unit 20 is operated in the dehumidification and reheating mode, the current cooling demand and the dehumidification and reheating demand of the user are obtained first to determine that the compressor 11 of the outdoor unit 10 of the multi-split air conditioner is controlled by the control logic corresponding to the cooling mode. Wherein, the current cooling demand and the dehumidification reheating demand of the user can be as follows: the number of heat sources in the action space of the indoor unit 20 corresponding to different operation modes, the operation mode of the indoor unit 20 with the highest priority, the number of the indoor units 20 corresponding to different operation modes, and at least one of the rated cooling capacities of the indoor units 20 corresponding to different operation modes are obtained.

Optionally, the cooling demand and the dehumidification reheating demand of the user can be obtained by: acquiring the number of heat sources in an action space of the indoor unit 20 operating in the cooling mode, representing a cooling demand by the maximum heat source number of the acquired heat source numbers or summing the acquired heat source numbers, representing the cooling demand by the summed value, and the like; and the number of heat sources in the active space of the indoor unit 20 operating in the dehumidification-reheat mode, the dehumidification-reheat demand represented by the maximum number of heat sources among the acquired numbers of heat sources, or the dehumidification-reheat demand represented by the sum of the acquired numbers of heat sources, and the like.

Optionally, the manner of obtaining the cooling demand and the dehumidification reheating demand of the user may also be: the priority of each indoor unit 20 is preset (may be a default setting of the system or a user-defined setting), and then the indoor unit 20 with the highest priority is found out from all the indoor units 20 which are started up to operate, and the actual requirement of the user is represented according to the operation mode of the indoor unit 20 with the highest priority. For example, when the operation mode of the indoor unit 20 with the highest priority is the cooling mode, it is considered that the user has a cooling demand; when the operation mode of the indoor unit 20 having a high priority is the dehumidification and reheating mode, it is considered that the user has a dehumidification and reheating demand.

Optionally, the manner of obtaining the cooling demand and the dehumidification reheating demand of the user may also be: acquiring the number of the indoor units 20 in the refrigeration mode, and representing the refrigeration requirement of a user by the number; the number of indoor units 20 operating in the dehumidification-reheat mode is obtained, and the dehumidification-reheat demand of the user is represented by the number.

Optionally, the manner of obtaining the cooling demand and the dehumidification reheating demand of the user may also be: acquiring rated refrigerating capacity of all indoor units 20 operating in a refrigerating mode, and representing the refrigerating requirement of a user by maximum rated refrigerating capacity; and acquiring the rated cooling capacity of all the indoor units 20 operating in the dehumidification and reheating mode, and representing the dehumidification and reheating requirement of a user by the maximum rated cooling capacity. Since the larger the refrigeration capacity is, the higher the frequency of the compressor 11 corresponding to the demand is, in order to improve the accuracy of the characterization of the user demand to reasonably adjust the frequency of the compressor 11, in this embodiment, it is preferable to sum the rated refrigeration capacities of all the indoor units 20 operating in the refrigeration mode, and characterize the refrigeration demand of the user by the sum value obtained by the summation; and sums the rated cooling capacities of all the indoor units 20 operating in the dehumidification-reheat mode, and represents the dehumidification-reheat demand of the user with the summed value.

Of course, the obtaining manner of the cooling demand and the dehumidification reheating demand of the user may also be a combination of at least two of the above manners, and may be set according to the actual demand, which is not specifically limited herein.

Step S20: determining a priority operation mode in the cooling mode and the dehumidification reheating mode according to the cooling demand and the dehumidification reheating demand;

because the frequency of the compressor 11 of the multi-split air conditioner can only be controlled corresponding to the operation mode of one indoor unit 20 at the same time, when the refrigeration demand and the dehumidification and reheating demand exist at the same time, the control mode of the frequency of the compressor 11 corresponding to the refrigeration demand is different from the control mode of the frequency of the compressor 11 corresponding to the dehumidification and reheating demand, and the refrigeration demand and the dehumidification and reheating demand are difficult to be considered. At this time, in order to satisfy the actual demand of the user to the greatest extent, the preferential operation mode can be determined in the cooling mode and the dehumidification reheating mode according to the acquired cooling demand and the dehumidification reheating demand, that is, whether the cooling demand or the dehumidification reheating demand is preferentially satisfied can be determined according to the cooling demand and the dehumidification reheating demand.

The method comprises the steps that the refrigeration demand and the dehumidification and reheat demand of a user are different in obtaining mode, and the mode of determining the priority operation mode in the refrigeration mode and the dehumidification and reheat mode correspondingly according to the obtained refrigeration demand and the obtained dehumidification and reheat demand is different. Optionally, when the refrigeration demand and the dehumidification reheating demand of the user are obtained according to the number of heat sources in the action space of the indoor units 20 corresponding to different operation modes, the number of the indoor units 20 corresponding to different operation modes, or the rated refrigeration capacity of the indoor units 20 corresponding to different operation modes, it may be determined that the refrigeration mode is the priority operation mode when the refrigeration demand is greater than the dehumidification reheating demand, and it is determined that the dehumidification reheating mode is the priority operation mode when the dehumidification reheating demand is greater than the refrigeration demand; optionally, when the refrigeration demand or the dehumidification reheating demand of the user is obtained according to the operation mode of the indoor unit 20 with the highest priority, the operation mode corresponding to the determined user demand may be directly used as the priority operation mode, for example, when the operation mode of the indoor unit 20 with the highest priority is the refrigeration mode, the refrigeration demand of the user may be correspondingly obtained, and the refrigeration mode is used as the priority operation mode according to the refrigeration demand; when the operation mode of the indoor unit 20 with the highest priority is the dehumidification and reheating mode, the dehumidification and reheating requirements of the user can be correspondingly acquired, and the dehumidification and reheating mode is taken as the priority operation mode according to the dehumidification and reheating requirements;

in order to improve the rationality of the determination of the priority operation mode to better meet the user demand, in the present embodiment, it is preferable to determine the priority operation mode according to the ratio of the cooling demand to the dehumidification reheating demand. Specifically, after a ratio of the cooling demand to the dehumidification reheating demand is acquired, the acquired ratio is compared with a preset ratio, and the priority operation mode is determined according to the comparison result. When the comparison result shows that the obtained ratio is higher than or equal to the preset ratio, the refrigeration demand is considered to be higher, and the refrigeration mode is determined as a priority operation mode; when the comparison result is that the obtained ratio is lower than the preset ratio, the dehumidification and reheating demand is considered to be higher, and at this time, the dehumidification and reheating mode may be determined as the priority operation mode. The preset ratio can be any value of 0.8-2, and can be set according to actual requirements, and the preset ratio is preferably 1.5 in the embodiment.

Step S30: and adjusting the frequency of the compressor according to the working condition parameters of the indoor unit corresponding to the priority operation mode.

It should be noted that the operating parameters may include: the set temperature, the ambient temperature, the relative humidity, the dew point temperature, the heat transfer temperature difference of the heat exchanger and the like. The operating condition parameters for adjusting the frequency of the compressor 11 corresponding to the different priority operating modes are different, and are not specifically limited herein.

After the priority operation mode is determined, the determined priority operation mode is different, and the adjustment mode of the corresponding frequency of the compressor 11 is different, and the adjustment can be performed according to the working condition parameters of the indoor unit 20 corresponding to the different priority operation modes. For example, when the determined priority operation mode is the cooling mode, in order to simultaneously satisfy the cooling requirements of the indoor units 20 in all the cooling modes, the frequency of the compressor 11 may be adjusted according to the lowest set temperature among the set temperatures of the indoor units 20 in all the cooling modes; in order to achieve the effect of preventing condensation when the refrigeration requirements of all the indoor units 20 operating in the refrigeration mode are met, the frequency of the compressor 11 can be adjusted by adjusting the ambient temperature, the relative humidity and the set temperature of the outdoor unit 10 operating in the refrigeration mode; when the determined priority operation mode is the dehumidification and reheat mode, the purpose of dehumidification and reheat may be achieved by determining the set temperature and the dew point temperature of the indoor unit 20 operating the dehumidification and reheat mode, and the difference in heat transfer temperature between the second heat exchanger 22 of the indoor unit 20 operating the dehumidification and reheat mode.

This embodiment is through obtaining user's refrigeration demand and dehumidification reheat demand, and according to the refrigeration demand that obtains and the dehumidification reheat demand confirm priority operation mode in refrigeration mode and dehumidification reheat mode, then adjust the frequency of compressor 11 of multi-split air conditioner according to the operating mode parameter of the indoor set 20 that priority operation mode corresponds, when having refrigeration demand and dehumidification reheat demand simultaneously, can from determining the higher operation mode of demand, with the actual demand of the at utmost satisfaction user, in order to promote user experience and feel.

Based on the above embodiments, a second embodiment of the control method of a multi-split air conditioner of the present invention is provided. Referring to fig. 4, in the present embodiment, step S30 includes:

step S31: acquiring the ambient temperature, the relative humidity and the set temperature of the indoor environment where the indoor unit 20 in the cooling mode is located, wherein when the priority operation mode is the cooling mode, the working condition parameters include the ambient temperature, the relative humidity and the set temperature of the indoor environment where the indoor unit 20 is located;

step S32: and adjusting the running frequency of the compressor 11 according to the ambient temperature, the relative humidity and the set temperature.

When it is determined that the cooling mode is the priority operation mode, in order to reasonably adjust the operation frequency of the compressor 11 to meet the cooling requirement, the ambient temperature, the relative humidity, and the set temperature of the indoor environment where the indoor unit 20 operating in the cooling mode is located may be detected at preset time intervals, and the operation frequency of the compressor 11 may be adjusted according to the ambient temperature, the relative humidity, and the set temperature of the indoor environment where the indoor unit 20 operating in the cooling mode is located. For example, a refrigeration demand degree corresponding to a refrigeration demand may be determined first, and if the refrigeration demand degree is a first refrigeration demand degree, the frequency of the compressor 11 of the multi-split air conditioner may be adjusted according to a set temperature, so as to rapidly reduce the indoor temperature to a comfortable temperature required by a user; if the refrigeration demand degree is the second refrigeration demand degree, the frequency of a compressor 11 of the multi-split air conditioner can be adjusted according to the indoor relative humidity so as to prevent condensation from wetting the floor and the like in the refrigeration process; the refrigeration demand corresponding to the first refrigeration demand degree is higher than the refrigeration demand corresponding to the second refrigeration demand degree. Alternatively, the preset time interval may be any time value between 0 seconds and 300 seconds, and is preferably 40 seconds in the embodiment.

Specifically, in order to determine the degree of the cooling demand corresponding to the cooling demand, the ambient temperatures of all indoor units 20 operating in the cooling mode may be compared with a preset temperature. When the comparison result indicates that the ambient temperatures of all the indoor units 20 operating in the cooling mode are greater than the preset temperature, it is determined that the indoor units are at the first cooling demand level, and at this time, a higher frequency of the compressor 11 needs to be provided to quickly reduce the temperature below the preset temperature, so as to create a comfortable indoor temperature; or, when the comparison result indicates that the relative humidity of the indoor environment in which the indoor units 20 in the cooling mode are operated is greater than the preset humidity, the indoor environment is also considered to be in the first cooling demand level, at this time, the cooling demand is relatively low, but there may be a condensation risk or discomfort to the user due to excessively high indoor humidity, and at this time, it is also necessary to provide a higher frequency of the compressor 11 for cooling and dehumidifying. At this time, in order to rapidly lower the ambient temperature of the indoor environment in which the indoor unit 20 in the cooling mode is operated to a comfortable indoor ambient temperature and rapidly lower the indoor humidity to a comfortable indoor moderate level, the frequency of the compressor 11 of the multi-split air conditioner may be adjusted according to the minimum set temperature among the set temperatures of the indoor unit 20 in the cooling mode. The method specifically comprises the following steps: the method includes the steps of determining an evaporation pressure or an evaporation temperature required to be provided by the outdoor unit 10 according to a minimum set temperature among set temperatures of the indoor units 20 operating in the cooling mode, determining a frequency of the compressor 11 of the multi-split air conditioner according to the evaporation pressure or the evaporation temperature, and adjusting the frequency of the compressor 11 of the multi-split air conditioner according to the frequency of the compressor 11. Alternatively, the range of the evaporation pressure or the evaporation temperature to be provided by the outdoor unit 10 may be 5 to 12 ℃. Optionally, the preset temperature may be a sum of a first preset temperature and a second preset temperature, where a value of the first preset temperature may range from 24 ℃ to 30 ℃, and is preferably 28 ℃ in this embodiment; the value range of the second preset temperature can be-5 ℃ to 5 ℃, and the second preset temperature is preferably 0 ℃ in the embodiment; the value range of the preset humidity can be 70% -90%, and is preferably 85% in the embodiment.

When the comparison result indicates that the ambient temperature of the indoor unit 20 having at least one operation cooling mode is less than or equal to the preset temperature and the relative humidity of the indoor unit 20 having at least one operation cooling mode is less than or equal to the preset humidity, it is determined that the indoor unit is at the second cooling demand level, and the cooling demand or the dehumidifying demand is relatively slightly low, so that the relatively slightly low frequency of the compressor 11 can be provided, and the power saving effect can be achieved while the cooling demand and the condensation prevention demand are considered. Specifically, the evaporation pressure or the evaporation temperature required to be provided by the outdoor unit 10 may be determined according to the maximum relative humidity of the relative humidities, the frequency of the compressor 11 of the multi-split air conditioner may be determined according to the evaporation pressure or the evaporation temperature, and the current frequency of the compressor 11 of the multi-split air conditioner may be adjusted according to the frequency of the compressor 11. Optionally, the determined evaporating temperature is the difference between the current dew point temperature and the engineering parameter. Wherein, the value range of the engineering parameter can be 0 ℃ to 12 ℃, and the preferable value range is 5 ℃ in the embodiment; the current dew point temperature can be calculated by the following formula:

wherein H₁Is indoor relative humidity, and has a value range of [ 20%, 90%]；T＝T₁+273.15，T₁The value range is [16 ℃, 30 DEG C]；C₈＝-5800.2206；C₉＝1.3914993；C₁₀＝-0.04860239；C₁₁＝0.41764768*10^-4；C₁₂＝-0.14452093*10^-7；C₁₃6.5459673; td is in the range of [6 deg.C, 22 deg.C ]]。

In addition, when the priority operation mode is the dehumidification and reheating mode, in order to meet the dehumidification and reheating requirement of a user, the set temperature and the dew point temperature of the indoor unit 20 in the dehumidification and reheating mode and the heat transfer temperature difference of the second heat exchanger 22 of the indoor unit 20 in the dehumidification and reheating mode are firstly obtained, the evaporation temperature or the evaporation pressure required to be provided by the outdoor unit 10 is determined according to the obtained set temperature, the obtained dew point temperature and the obtained heat transfer temperature difference, and then the frequency of the compressor 11 of the multi-split air conditioner is adjusted according to the determined evaporation temperature and the determined evaporation temperature.

In this embodiment, when the preferential operation mode is the cooling mode, the ambient temperature, the relative humidity, and the set temperature of the indoor environment where the indoor unit 20 operating the cooling mode is located are obtained, and the operation frequency of the compressor 11 is adjusted according to the obtained ambient temperature, the obtained relative humidity, and the set temperature, so that different cooling demand degrees can be distinguished, and further, the cooling demand of the user can be met in a targeted manner, and the user experience is improved.

Based on the above embodiments, a third embodiment of the control method of a multi-split air conditioner of the present invention is provided. Referring to fig. 5, in this embodiment, the method for controlling a multi-split air conditioner includes:

step S11: acquiring evaporation parameters of an indoor unit in a refrigeration mode and the relative humidity of the indoor environment in which the indoor unit in the refrigeration mode is located, and determining target evaporation parameters according to the relative humidity, wherein the evaporation parameters comprise evaporation pressure or evaporation temperature;

step S12: when the evaporation parameter is greater than or equal to the target evaporation parameter, adjusting a first opening degree of a first electronic expansion valve of the indoor unit in the refrigeration mode according to a preset superheat degree;

step S13: and when the evaporation parameter is smaller than the target evaporation parameter, determining a target superheat degree according to the relative humidity, and determining a first opening degree of a first electronic expansion valve of the indoor unit 20 operating in the no-wind-sensation mode according to the target superheat degree.

For the refrigeration indoor unit operating in the refrigeration mode, the opening degree of the first electronic expansion valve 23 can be controlled according to the superheat degree c (constant) of the first heat exchanger 21 so as to meet the refrigerating capacity requirement of the refrigeration indoor unit, and the auxiliary electronic expansion can fix a small opening degree m so as to prevent the refrigerant from being accumulated. Optionally, the value range of the superheat degree c may be 0.5 to 1 ℃, the value range of m may be 60P to 90P, and 58P may be preferred in this embodiment; for the standby internal machine in the standby state, the first electronic expansion valve can be closed, and the auxiliary electronic expansion valve is fixed with a small opening m to prevent the refrigerant from accumulating; for the dehumidification and reheating internal machine operating in the dehumidification and reheating mode, the first electronic expansion valve 23 can be controlled according to the relative humidity of the indoor environment where the dehumidification and reheating internal machine is located, and the second electronic expansion valve 24 can be controlled according to the outlet air temperature of the dehumidification and reheating internal machine and the supercooling degree of the first heat exchanger 21.

For the refrigeration indoor unit running in the refrigeration mode, the current evaporation parameters of the refrigeration indoor unit can be compared with the actually required target evaporation parameters to judge whether condensation risks exist. If the current evaporation parameter is greater than or equal to the target evaporation parameter, no condensation risk is indicated, and at this time, the opening degree of the first electronic expansion valve 23 can be controlled according to a preset superheat degree (fixed value) to save energy, wherein the value range of the preset superheat degree can be 2-8 ℃; if the current evaporation parameter is smaller than the target evaporation parameter, it is indicated that there is a condensation risk, and at this time, the opening degree of the first electronic expansion valve 23 of the refrigeration indoor unit can be controlled according to the relative humidity of the indoor environment where the refrigeration indoor unit is located, so as to prevent the condensation dripping wet floor caused by overhigh indoor humidity. Specifically, the following steps can be performed: the target superheat degree can be searched through a preset relation curve between the humidity interval and the target superheat degree according to the humidity interval in which the relative humidity is located, and then the opening degree of the first electronic expansion valve 23 of the refrigeration indoor unit is determined according to the target superheat degree. Alternatively, the second electronic expansion valve 24 of the refrigeration indoor unit is fixed at the opening degree m to prevent the refrigerant from being accumulated.

Alternatively, the humidity interval versus the target superheat is shown in FIG. 6. Wherein, in the rising curve: when the humidity interval is H > 75%, the corresponding target superheat degree is Hucr 1; when the humidity interval is 65% < H ≦ 75%, the target superheat degree is Hucr 2; when the humidity interval is 55% < H ≦ 65%, the target superheat degree is Hucr 3; when the humidity interval is H is less than or equal to 55%, the target superheat degree is Hucr 4; and in the descending curve: when the humidity interval is H > 70%, the corresponding target superheat degree is Hucr 1; when the humidity interval is 60% < H ≦ 70%, the target superheat degree is Hucr 2; when the humidity interval is 50% < H ≦ 60%, the target superheat degree is Hucr 3; when the humidity interval is H less than or equal to 50%, the target superheat degree is Hucr 4. Alternatively, the value of Hucr1 may be 9, the value of Hucr2 may be 7, the value of Hucr3 may be 5, and the value of Hucr4 may be 1.

In addition, in order to meet the dehumidification and reheating requirement in real time, the dehumidification and reheating internal machine operating in the dehumidification and reheating mode may determine a first opening degree of the first electronic expansion valve 23 of the dehumidification and reheating internal machine according to the relative humidity of the indoor environment where the dehumidification and reheating internal machine is located, and determine a second opening degree of the second electronic expansion valve 24 of the dehumidification and reheating internal machine according to the outlet air temperature of the dehumidification and reheating internal machine and the supercooling degree of the second heat exchanger 22.

Alternatively, the ambient temperature and the set temperature of the dehumidification and reheat internal machine can be obtained, and the second opening degree of the second electronic expansion valve 24 of the dehumidification and reheat internal machine is adjusted according to the difference value T between the ambient temperature and the set temperature and the supercooling degree of the second heat exchanger 22. When T > 1 ℃, the opening degree of the reheater may be a fixed opening degree K1, the value range of K1 may be 40 steps to 100 steps, and the preferred embodiment is 70 steps, so that not only can cold medium accumulation be prevented, but also the dehumidified air can be reheated by small heat to prevent cold air from being blown out. When Tc is less than or equal to 0 ℃, the indoor environment temperature is lower than the set temperature, and higher reheat needs to be provided. At this time, in order to control the opening degree of the second electronic expansion valve 24 to effectively control the supercooling degree of the second heat exchanger 22, the temperature range of the supercooling degree is made to be [ a, b ], which may specifically be: when T < a, the opening degree of the second electronic expansion valve 24 is controlled to increase by K2 (T-10) × 6 steps every 40 seconds; when T is greater than b, controlling the opening degree of the second electronic expansion valve 24 to increase K3 steps every 40 seconds, wherein the value range of K3 can be 5-15 steps, and preferably 5 steps in the embodiment; and when the a is more than or equal to the T and less than or equal to the b, controlling the second electronic expansion valve 24 to keep the current opening.

Optionally, the value range of a is 5-11 ℃, preferably 9 ℃ in this embodiment, the value range of b is 8-16 ℃, and preferably 12 ℃ in this embodiment.

In this embodiment, when the evaporation parameter is greater than or equal to the target evaporation parameter, the opening degree of the first electronic expansion valve 23 of the indoor unit 20 in the refrigeration mode is adjusted according to the preset superheat degree, and when the evaporation parameter is less than the target evaporation parameter, the opening degree of the first electronic expansion valve 23 of the indoor unit 20 in the refrigeration mode is determined according to the relative humidity, so that the condensation prevention effect can be achieved while the refrigeration requirement is met.

Furthermore, an embodiment of the present invention also provides a readable storage medium, on which a control program of an integrated cooker is stored, which when executed by a processor implements the steps of the control method of the integrated cooker as described above.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a television, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.