CN113865022A

CN113865022A - Control method and device of air conditioner

Info

Publication number: CN113865022A
Application number: CN202111088510.5A
Authority: CN
Inventors: 何明顺; 盛凯; 王瑞佳; 陈林
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2021-12-31

Abstract

The embodiment of the application provides a control method and device of an air conditioner, relates to the technical field of air conditioners, and aims to control the air conditioner according to an actual use scene so as to meet actual use requirements of users and improve user experience. The control method of the air conditioner comprises the following steps: acquiring a plurality of historical operation records of an indoor unit of an air conditioner, wherein the historical operation records comprise historical operation time periods of the indoor unit; determining the operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit; determining a use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period; determining a control scheme of the indoor unit according to a use space scene of the indoor unit; and sending a first control instruction to the air conditioner, wherein the first control instruction is used for instructing the air conditioner to execute a control scheme of the indoor unit.

Description

Control method and device of air conditioner

Technical Field

The present application relates to the field of air conditioners, and in particular, to a method and an apparatus for controlling an air conditioner.

Background

In a multi-split air conditioning system, one outdoor unit may be connected to one or more indoor units through pipes, which is commonly called "one split multiple". The outdoor unit is only used, so that the installation is convenient and beautiful, and the control is flexible and convenient. And centralized management of each indoor unit can be realized by adopting network control. One indoor machine can be independently started to operate, and a plurality of indoor machines can be simultaneously started, so that the control is more flexible and the energy is saved.

In addition, since one or more indoor units of the multi-split air conditioning system may be installed in different places of use, the use requirements of the various places may be different. For example, a kitchen needs to be rapidly cooled, is not very sensitive to heating and noise, a bedroom and a study need to be silent, and the bedroom has the requirement of preventing cold wind and cold for the ambient temperature when sleeping at night. However, the existing air conditioning system cannot simultaneously meet different use requirements of users in various places, and cannot bring good use experience to the users.

Disclosure of Invention

The embodiment of the application provides a control method and device of an air conditioner, which can control the air conditioner according to an actual use scene so as to meet the actual use requirement of a user.

In a first aspect, an embodiment of the present application provides a method for controlling an air conditioner, where the method includes: acquiring a plurality of historical operation records of an indoor unit of an air conditioner, wherein the historical operation records comprise historical operation time periods of the indoor unit; determining the operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit; determining a use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period; determining a control scheme of the indoor unit according to a use space scene of the indoor unit; and sending a first control instruction to the air conditioner, wherein the first control instruction is used for instructing the air conditioner to execute a control scheme of the indoor unit.

Based on the technical scheme, the running frequency of the indoor unit in each preset time period is determined according to a plurality of historical running records of the indoor unit. And analyzing each operation preset time period and operation frequency thereof according to possible work and rest rules of the user under normal conditions, thereby determining the actual use space scene of the indoor unit. And the operation of the air conditioner is controlled by adopting a control scheme which accords with the current scene, so that the intelligent degree of the air conditioner is improved, and different use requirements of a user in an actual use scene can be met.

In addition, compared with the existing method for recognizing scenes based on images, the method for recognizing the scenes based on the images automatically recognizes the using space scenes according to the historical operating records of the indoor unit, does not need to additionally configure a shooting device, and is favorable for saving the cost.

In a second aspect, there is provided a control apparatus of an air conditioner, the apparatus comprising: the system comprises a transceiving unit, a control unit and a control unit, wherein the transceiving unit is used for acquiring a plurality of historical operation records of an indoor unit of the air conditioner, and the historical operation records comprise historical operation time periods of the indoor unit; the processing unit is used for determining the operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit; determining a use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period; determining a control scheme of the indoor unit according to a use space scene of the indoor unit; and the transceiving unit is also used for sending a first control instruction to the air conditioner, and the first control instruction is used for instructing the air conditioner to execute a control scheme of the indoor unit.

In a third aspect, a server is provided that includes at least one processor and at least one storage; the at least one memory stores computer instructions that, when executed by the server, cause the server to perform any one of the methods provided by the first aspect above.

In a fourth aspect, a computer-readable storage medium is provided, which comprises computer instructions that, when executed on a computer, cause the computer to perform any one of the methods provided by the first aspect.

In a fifth aspect, there is provided a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform any of the methods provided by the first aspect above.

The technical effects brought by any one of the possible schemes in the second aspect to the fifth aspect may be analyzed in the beneficial effects corresponding to the first aspect, and are not described herein again.

Drawings

FIG. 1 is a schematic diagram of a system provided by an embodiment of the present application;

fig. 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present disclosure;

fig. 4 is a schematic view of a display interface of a terminal device according to an embodiment of the present application;

fig. 5 is a schematic display interface diagram of another terminal device according to an embodiment of the present application;

fig. 6 is a flowchart illustrating another control method of an air conditioner according to an embodiment of the present disclosure;

fig. 7 is a flowchart illustrating another control method of an air conditioner according to an embodiment of the present disclosure;

fig. 8 is a flowchart illustrating another control method of an air conditioner according to an embodiment of the present disclosure;

fig. 9 is a schematic composition diagram of a control device of an air conditioner according to an embodiment of the present disclosure;

fig. 10 is a schematic hardware structure diagram of a control device of an air conditioner according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

As described in the background art, the current air conditioner has a relatively low degree of intelligence, and cannot adjust an operation scheme according to an actual use scene, and the current control method of the air conditioner cannot meet different use requirements of users in different spaces.

In view of the above technical problems, the present application provides a method and an apparatus for controlling an air conditioner. The method can automatically identify the use space scene of the indoor unit according to the historical operation record of the indoor unit. And then the operation of the air conditioner can be controlled by adopting a control scheme according with the current scene according to the identified actual use scene. Therefore, the intelligent degree of the air conditioner is improved, and different use requirements of a user in an actual use scene can be met.

Embodiments of the present embodiment will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a system according to an embodiment of the present disclosure. The system may include an air conditioner and a server. The air conditioner and the server can be connected in a wired or wireless mode.

In the embodiments of the present application, an air conditioner refers to a device for adjusting and controlling parameters such as temperature, humidity, and flow rate of ambient air in a building or structure. The air conditioner uses the refrigerant to change from gas state to liquid state, and releases a large amount of heat. While changing from a liquid to a gaseous state, a large amount of heat is absorbed. (i.e., first endothermic vaporization and then liquefaction exothermic). The air conditioner in the embodiment of the application is also provided with a communication module which can be communicated with the server.

Optionally, in the embodiment of the present application, the air conditioner in the system shown in fig. 1 may be a multi-split air conditioner. As shown in fig. 2, in the multi-split air conditioner, one outdoor unit may be connected to one or more indoor units via pipes. Commonly known as "one drags more". The multi-split air conditioner can realize the centralized management of each indoor unit, can independently start one indoor unit to operate, and can also simultaneously start a plurality of indoor units, so that the control is more flexible and energy-saving. The multi-split air conditioner also has the advantages of energy conservation, reliable operation, good unit adaptability, wide range of refrigerating and heating temperature, high design freedom degree and convenient installation and charging.

As shown in fig. 2, the outdoor unit of the air conditioner includes: the air conditioner comprises a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an outdoor fan 4 and a gas-liquid separator 8. An indoor unit of an air conditioner includes: electronic expansion valve 5, indoor heat exchanger 6 and indoor fan 7.

When the air conditioner shown in fig. 2 is in a cooling mode, the d end and the c end of the four-way valve 2 are connected, the e end and the s end are connected, the outdoor heat exchanger 3 serves as a condenser, and the indoor heat exchanger 6 serves as an evaporator. The refrigerant in the compressor 1 flows into the outdoor heat exchanger 3 through the d-side and c-side of the four-way valve 2, releases heat in the outdoor heat exchanger 3, and then flows out of the outdoor unit to flow into the indoor unit. The refrigerant flowing into the indoor unit passes through the indoor heat exchanger 6, and at this time, the indoor heat exchanger 6 serves as an evaporator, and the refrigerant absorbs heat at the indoor heat exchanger 6. Indoor air is sucked by the indoor fan 7 and passes through the indoor heat exchanger 3 of the indoor unit, and since the refrigerant absorbs heat in the process, heat exchange occurs at the indoor heat exchanger 6 to lower the temperature of the air, that is, to lower the indoor temperature. Then, the refrigerant in the indoor unit flows into the gas-liquid separator 8 through the e end and the s end of the four-way valve 2, and further flows back to the compressor 1, so that a refrigeration cycle is formed.

When the air conditioner shown in fig. 2 is in a heating mode, the d end and the e end of the four-way valve 2 are connected, and the c end and the s end are connected. The outdoor heat exchanger 3 serves as an evaporator and the indoor heat exchanger 6 serves as a condenser. The refrigerant in the compressor 1 flows into the indoor unit through the d end and the e end of the four-way valve 2, passes through the indoor heat exchanger 3 of the indoor unit, and releases heat at the indoor heat exchanger 3. Indoor air is sucked by the indoor fan 7 and passes through the indoor heat exchanger 3 of the indoor unit, and heat exchange occurs at the indoor heat exchanger 3 due to heat release of the refrigerant in the process, so that the indoor temperature rises. The refrigerant flows out of the indoor heat exchanger 6, enters the outdoor heat exchanger 3, absorbs heat at the outdoor heat exchanger 3, then flows into the gas-liquid separator 8 through the c end and the s end of the four-way valve 2, and further flows back to the compressor 1, so that a heating cycle is formed.

The server in the embodiments of the present application may be a device having data processing capabilities as well as data storage capabilities. The server may be, for example, one server, or a server cluster composed of a plurality of servers, or one cloud computing service center, which is not limited to this. In the embodiment of the present application, the server may be a management server of the air conditioner.

Optionally, as shown in fig. 1, the system may further include a terminal device. The terminal device and the server can be connected in a wired or wireless mode.

The terminal device in the embodiment of the present application may be any form of mobile terminal. Such as cell phones, tablet computers, desktop computers, laptop computers, handheld computers, notebook computers, ultra-mobile personal computers (UMPC), netbooks, and cellular phones, Personal Digital Assistants (PDA), Augmented Reality (AR) \ Virtual Reality (VR) devices, and the like. The server may communicate with the server, and the embodiment of the present application does not particularly limit the specific form of the terminal device.

Based on the system shown in fig. 1, as shown in fig. 3, an embodiment of the present application provides a control method of an air conditioner, including the following steps:

s101, a server acquires a plurality of historical operating records of an indoor unit of an air conditioner.

After receiving an operation instruction of an indoor unit of an air conditioner, the server may obtain a plurality of history records of the indoor unit so as to determine a usage space scene of the indoor unit. The historical operation record comprises the historical operation time period of the indoor unit.

Optionally, the server may obtain a plurality of historical operating records of the indoor unit of the air conditioner within a preset time period. Wherein the preset time period can be possible time periods such as 15 days, 1 month, 2 months and the like. It should be understood that the longer the preset time is, the more historical operating records are acquired by the server, and the accuracy of scene identification of the use space can be improved.

For example, if the preset time period is 1 month, the historical operation record of the last 1 month of the first indoor unit of the air conditioner may be as shown in table 1. If the current time is 2021-09-10, the server may obtain historical operating records of the air conditioners 2021-08-09 to 2021-09-09 as shown in table 1. As shown in Table 1, the first indoor unit of the air conditioner operates for 3 times in 2021-08-09, and the operation time periods are 08:30-09:40, 15:00-18:00 and 19:30-22:30 respectively.

TABLE 1

As a possible implementation, the server may retrieve a plurality of historical operating records of the indoor unit of the air conditioner from its own database.

For example, during the operation of the air conditioner, the air conditioner may periodically upload the current status information of each indoor unit to the server. Correspondingly, the server can receive the state information uploaded by the air conditioner and store the corresponding historical operating records in the database of the server according to the received state information.

Therefore, after receiving the operation instruction of the indoor unit of the air conditioner, the server can query the self database and retrieve a plurality of historical operation records of the indoor unit of the air conditioner from the self database.

As another possible implementation manner, the server may receive a plurality of historical operation records of the indoor unit of the air conditioner sent by the air conditioner.

For example, in the operation process of the air conditioner, the air conditioner may periodically detect current state information of each indoor unit, and store corresponding historical operation records in a database thereof according to the detected state information.

Thus, after receiving an operation instruction of the indoor unit of the air conditioner, the server may transmit a query message to the air conditioner. The air conditioner can retrieve a plurality of historical operating records of the indoor unit of the air conditioner from the database thereof according to the query message, and send the retrieval result to the server. Accordingly, the server may receive a plurality of historical operating records of the indoor unit of the air conditioner.

S102, the server determines the operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit.

The preset time period may be a running time possible using the spatial scenario. For example, if the kitchen is running for a possible cooking time throughout the day, the preset time period for the kitchen may be set to: 06:00-07:00, 11:00-12:00, and 17:00-18: 00.

Optionally, the usage space scenario includes one or more of a bedroom, a living room, a kitchen, a study, and an activity room.

For example, as shown in table 2, the first preset time period is a possible cooking time of the whole day, and the corresponding usage space scene may be a kitchen. The second preset time period is the possible leisure time all day, and the corresponding usage space scene can be a living room. The third preset time period is possible sleeping time of the whole day, and the corresponding use space scene can be a bedroom.

TABLE 2

A first preset time period	Second preset time period	Third predetermined time period
			06:00-07:00	08:00-11:00	22:00-00:00
11:00-12:00	13:00-17:00	00:00-03:00
			17:00-18:00	19:00-21:00	03:00-06:00

Further, combining table 1 and table 2, as shown in table 3, the operation frequency of the first indoor unit of the air conditioner in each preset time period in the last 1 month can be determined.

TABLE 3

As shown in table 3, the server may count the number of the first preset time period, the second preset time period, and the third preset time period in the list of the preset time periods, that is, the operation frequency in the first preset time period, the second preset time period, and the third preset time period in the last 1 month of the first indoor unit of the air conditioner.

S103, the server determines the use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period.

Optionally, if the operation frequency of the indoor unit of the air conditioner within the preset time period is greater than or equal to the preset threshold, the server may use the usage space scene corresponding to the preset time period as the usage space scene of the indoor unit.

The preset threshold of the operation frequency may be determined according to the preset duration in step S101. For example, in the case where the preset time period is 15 days, the preset threshold may be set to a reasonable value such as 13 times, 15 times, 16 times, and the like. Alternatively, in the case where the preset time period is 1 month, the preset threshold may be set to a reasonable value such as 28 times, 30 times, 35 times, and the like.

Illustratively, as illustrated in connection with table 2, it is assumed that the server determines that the last 1 month of the first indoor unit of the air conditioner has an operation frequency of 5 times in a first preset time period, an operation frequency of 40 times in a second preset time period, and an operation frequency of 8 times in a third preset time period. If the preset threshold is 30 times, the server may determine that the operation frequency of the first indoor unit of the air conditioner in the second preset time period is greater than the preset threshold, and the use space scene corresponding to the second preset time period is a kitchen, and the server may determine that the use space scene of the first indoor unit of the air conditioner is the kitchen.

In some embodiments, in a case where the user sets the usage space scene of the indoor unit, the server may preferentially determine the usage space scene of the indoor unit according to the setting of the user.

For example, the server may receive a first instruction sent by the terminal device, and determine a usage space scene of the indoor unit according to the first instruction. The first instruction comprises the use space scene information of the indoor unit of the air conditioner set by the user.

For example, when a first indoor unit of an air conditioner is operating, a user may set a usage space scene of the first indoor unit through the air conditioner setting interface 100 of the terminal device. As shown in fig. 4, the air conditioner setting interface 100 includes a selection box 110, and the selection box 110 includes possible usage space scenes such as "bedroom", "kitchen", "study room", and the like. The user can click on the selection control corresponding to "kitchen" to select "kitchen". Further, the user may click the ok button 120 to set the usage space scene of the first indoor unit as a kitchen. Accordingly, in response to the user's selection operation of the ok button 120, the terminal device may transmit a first instruction including the first indoor unit and its corresponding usage space scene "kitchen" to the air conditioner. Thus, the server can determine that the usage space scene of the first indoor unit is a kitchen.

On the contrary, under the condition that the user does not set the use space scene of the indoor unit, the server can analyze each operation preset time period and the operation frequency of the indoor unit, automatically analyze the use space scene of the indoor unit, and improve the intelligent degree of the air conditioner.

And S104, the server determines a control scheme of the indoor unit according to the use space scene of the indoor unit.

After determining the usage space scenario in the room, the server may determine an appropriate control scheme according to the usage space scenario.

Optionally, the server may preset a control scheme corresponding to each usage space scene.

For example, a correspondence table of the usage space scenario and the control scheme may be preset in the server, where the correspondence table is shown in table 4, and includes multiple possible usage space scenarios, such as bedroom, kitchen, and living room light. Wherein, a plurality of usage space scenes and a plurality of control schemes have corresponding relations.

TABLE 4

The indoor unit of the air conditioner is controlled by using the quick effect scheme, so that the expected refrigerating or heating effect can be achieved in a short time in a space corresponding to the indoor unit.

The high-energy scheme aims at the control effect, and under the condition of large space or large temperature difference between indoor and outdoor, the high-energy scheme needs higher output capacity to achieve the expected refrigerating or heating effect.

The low-noise scheme is used for ensuring that the operation of the indoor unit does not bring large noise to a user and influence the use experience of the user.

The sleep scheme is on the basis of guaranteeing the low noise, possesses anti-cold wind function when the refrigeration to bring better sleep experience for the user.

It should be understood that the names of the above control schemes are only exemplary, and other names may be used in practical applications, which are not limited thereto. In addition, in practical application, besides the above control schemes, the air conditioner may be configured with more other control schemes to adapt to more use scenarios.

For example, after the server determines an indoor usage space scene, the server may look up the correspondence table according to the determined usage space scene of the indoor unit, and determine the control scheme of the indoor unit. For example, after the server determines that the usage space scene of the first indoor unit of the air conditioner is a kitchen, the server may further determine that the control scheme of the first indoor unit of the air conditioner is a fast-effect scheme according to table 4.

In some embodiments, in order to provide personalized services for the user, the user may also be allowed to modify the control scheme corresponding to the usage space scenario. For example, the server may determine the control scheme of the indoor unit according to the second instruction sent by the terminal device and according to the second instruction.

The second instruction is used for instructing the server to set the control scheme corresponding to the usage space scene as the control scheme selected by the user.

For example, the user may set the control scheme corresponding to the usage space scene on the control scheme setting interface 200 displayed by the terminal device. As shown in FIG. 5, the control scheme setup interface 200 includes a usage space selection box 210 and a control scheme selection box 220. The usage space selection box 210 includes possible usage space scenes such as "bedroom", "living room", "study room", and the like. The control scheme selection box 220 includes preset control schemes such as "high-power scheme", "fast-effect scheme", "low-noise scheme", and the like.

Taking the living room as an example, the user can set the control scheme of the living room as a low-noise control scheme through the terminal device according to the preference of the user. As shown in FIG. 5, the user may click on the selection control of "living room" in the spatial selection box 210 to select "living room". And a selection control of "low noise scheme" in the control scheme selection box 220 to select "low noise scheme". Further, the user may click the decision button 230 to set the control scheme corresponding to the living room to "low noise scheme".

In response to the user's selection operation of the decision button 230, the terminal device sends a second instruction to the server, the second instruction being for instructing the server to set the control scheme corresponding to the living room to the "low noise scheme". Accordingly, after the server receives the second command, as shown in table 5, the control scheme corresponding to the living room is set to "low noise scheme".

TABLE 5

Using spatial scenes	Control scheme
		Kitchen cabinet	Quick effect scheme
Bedroom	Sleep scheme
		Parlor	Low noise scheme
Study room	Low noise scheme
		……	……

Taking the air conditioner shown in fig. 2 as an example, according to the refrigerant circulation rule of the air conditioner, the control scheme of the air conditioner can be implemented by adjusting the frequency of the compressor, the speed of the frequency change of the compressor, the opening degree of the electronic expansion valve, and the rotating speed of the indoor fan.

The following describes various control parameters of the control scheme:

(1) frequency of compressor

The higher the operating frequency of the compressor, the higher the cooling or heating capacity of the air conditioner, but the louder the operation thereof. Accordingly, the frequency of the compressor may be increased for high capacity solutions and decreased for low noise solutions.

In addition, in the cooling mode of the air conditioner, the operation frequency of the compressor is related to the suction pressure Ps, and the smaller Ps, the higher the operation frequency of the compressor. Therefore, in the cooling mode of the air conditioner, the magnitude of the current operating frequency of the compressor can be represented by the magnitude of the suction pressure Ps.

Illustratively, the suction pressure Ps may have several steps as follows:

Ps1＜Ps2＜Ps3＜Ps4＜Ps5。

wherein, the higher the gear of Ps, the lower the frequency of the corresponding compressor.

In a heating mode of the air conditioner, the operation frequency of the compressor is related to the exhaust pressure Pd, and the larger Pd is, the higher the operation frequency of the compressor is. Therefore, the magnitude of the current operating frequency of the compressor can be represented by the magnitude of Pd.

Illustratively, Pd may have several gears as follows:

Pd1＜Pd2＜Pd3＜Pd4＜Pd5。

wherein, the higher the gear of Pd, the higher the frequency of the corresponding compressor.

(2) Speed of change of compressor frequency

The change speed of the compressor frequency determines the time for the air conditioner to reach the set capacity and the noise when the compressor speed changes. The faster the frequency change, the shorter the time to reach the output capacity of the air conditioner, the more noise is generated by the frequency change of the compressor, the slower the frequency change, and the longer the time to reach the output capacity of the air conditioner, the less noise is generated by the frequency change of the compressor. For example, a fast effect solution may reduce the time to achieve a desired cooling or heating effect by increasing the speed at which the compressor frequency is varied.

For example, the speed V of the compressor frequency can be shifted by several steps as follows:

V1＜V2＜V3＜V4＜V5。

(3) opening degree of electronic expansion valve

In the cooling mode of the air conditioner, the larger the opening degree of the electronic expansion valve is, the larger the refrigerant flow rate of the indoor unit is, and thus the more difficult the refrigerant flowing through the indoor unit is to evaporate, the smaller the superheat Sh of the refrigerant is. The smaller the opening degree of the electronic expansion valve is, the smaller the refrigerant flow rate is, so that the refrigerant flowing through the indoor unit is more easily evaporated completely, and Sh is larger. Therefore, the opening degree of the electronic expansion valve can be represented by the Sh of each indoor unit.

Illustratively, Sh may have several gears as follows:

Sh1＜Sh2＜Sh3＜Sh4＜Sh5。

in a heating mode of the air conditioner, the larger the opening degree of the electronic expansion valve is, the larger the flow rate of the refrigerant of the indoor unit is, and thus the more difficult the refrigerant flowing through the indoor unit is to be condensed, the smaller the supercooling degree Sc of the refrigerant is. The smaller the opening degree of the electronic expansion valve is, the smaller the refrigerant flow rate is, so that the refrigerant flowing through the indoor unit is easier to be completely condensed, and the Sc is larger. Therefore, the opening degree of the electronic expansion valve can be represented by the size Sc of each indoor unit.

For example, Sc may have several gears as follows:

Sc1＜Sc2＜Sc3＜Sc4＜Sc5。

therefore, the more difficult the refrigerant flowing through the indoor unit is to be condensed, the smaller the supercooling degree of the refrigerant is, the smaller the Ei opening degree is, the smaller the refrigerant flow is, so that the refrigerant flowing through the indoor unit is easy to be condensed completely, the larger the supercooling degree of the refrigerant is, and the refrigerant flow of each indoor unit is controlled by controlling the supercooling degree Sc of each indoor unit.

(4) Indoor fan rotating speed

The rotating speed of the indoor fan determines the air volume of the air conditioner, and simultaneously directly influences the refrigerating capacity of the air conditioner and the noise of the air conditioner. The larger the rotating speed of the fan is, the better the cooling and heating effect of the air conditioner is, but the larger the noise is; the smaller the rotating speed of the fan is, the lower the refrigerating and heating capacity of the air conditioner is, and the lower the noise is.

For example, the indoor fan speed R may have several gears as follows:

R1＜R2＜R3＜R4＜R5。

for example, in the cooling mode of the air conditioner, the initial operation scheme is specifically: the suction pressure was controlled at Ps3, the variation speed of the compressor frequency was set to V3, the degree of superheat of the refrigerant was controlled at Sh3, and the fan speed was set to R3.

Thus, in the cooling mode, the above control schemes can be as shown in Table 6

TABLE 6

In some embodiments, the control scheme applied by the indoor unit not only considers the usage space scenario of the indoor unit, but also considers some other factors (e.g., environmental information). Based on this, the server may also obtain current environmental information including one or more of indoor temperature, indoor humidity, or outdoor temperature. Furthermore, the server can determine the control scheme of the indoor unit according to the use space scene of the indoor unit and the current environmental information.

Specifically, the server may determine a control scheme corresponding to a usage space scene according to the usage space scene of the indoor unit; and then, the server adjusts the control scheme corresponding to the use space scene according to the environment information, and takes the adjusted control scheme as the control scheme of the practical application of the indoor unit.

For example, the usage space scene of the indoor unit is taken as a living room, and the corresponding control scheme is a high-capacity scheme. As can be seen from table 6, in the high-capacity scheme, the suction pressure is set to Ps2, the frequency of the compressor is set to V3, the superheat degree of the refrigerant is set to Sh2, and the rotational speed of the indoor fan is set to R4. Assuming that the current indoor temperature is 30 ℃, under such a condition, the indoor temperature is too high, which is not beneficial to the user experience, so the server can adjust the high-energy scheme, and the gear of the rotating speed of the indoor fan in the adjusted high-energy scheme is set to be R5. Like this, the high-energy scheme after the adjustment is more suitable for current service environment than the high-energy scheme that sets up in advance to reach the intelligent degree that improves the air conditioner, promote the purpose that the user used experience.

S105, the server sends a first control instruction to the air conditioner.

The first control instruction is used for instructing the air conditioner to execute a control scheme of the indoor unit.

For example, assuming that the server determines that the control scheme of the first indoor unit of the air conditioner is the high-capacity control scheme, as shown in table 5, the server may send a first control command to the air conditioner, where the first control command includes: the suction pressure was controlled at Ps2, the variation speed of the compressor frequency was set to V3, the degree of superheat of the refrigerant was controlled at Sh2, and the fan speed was set to R4.

Based on the embodiment, the operation frequency of the indoor unit in each preset time period is determined according to a plurality of historical operation records of the indoor unit. And analyzing each operation preset time period and operation frequency thereof according to possible work and rest rules of the user under normal conditions, thereby determining the actual use space scene of the indoor unit. And the operation of the air conditioner is controlled by adopting a control scheme which accords with the current scene, so that the intelligent degree of the air conditioner is improved, and different use requirements of a user in an actual use scene can be met. In addition, compared with the existing method for recognizing scenes based on images, the method for recognizing the scenes based on the images automatically recognizes the using space scenes according to the historical operating records of the indoor unit, does not need to additionally configure a shooting device, and is favorable for saving the cost.

As an alternative embodiment, based on the control method shown in fig. 3, as shown in fig. 6, the method further includes the following steps:

s106, the server acquires feedback information of the control scheme.

The feedback information may include an operation parameter of the air conditioner under the control scheme, and the operation parameter may include: the frequency of the compressor, the operation time, the set temperature, the indoor temperature, and the like.

Optionally, the feedback information may further include feedback opinions of the user on the control scheme of the air conditioner.

And S107, the server updates the control scheme of the indoor unit according to the feedback information.

For example, taking the control scheme as the fast effect scheme as an example, after the server obtains the feedback information of the fast effect scheme, the server may determine, according to the feedback information, a duration for the indoor temperature to reach the set temperature. If the time length for the indoor temperature to reach the set temperature is less than the first threshold value, which indicates that the indoor temperature changes too fast, the server may increase the target frequency adjustment of the compressor and/or increase the opening degree of the electronic expansion valve. If the time length of the indoor temperature reaching the set temperature is greater than the first threshold value, the temperature change in the space is slow, and therefore the target frequency of the compressor can be reduced by the server, and/or the opening degree of the electronic expansion valve can be reduced.

Illustratively, for a low noise scenario, if the user feedback is too noisy. Based on the low noise scheme shown in table 5, the server may update the low noise scheme as shown in table 7.

TABLE 7

And S108, the server sends a second control instruction to the air conditioner, wherein the second control instruction is used for instructing the air conditioner to execute the updated control scheme.

For example, taking the updated low-noise scheme in table 6 as an example, the second control command is specifically: the suction pressure was controlled at Ps5, the variation speed of the compressor frequency was set to V1, the degree of superheat of the refrigerant was controlled at Sh5, and the fan speed was set to R1.

Based on the embodiment, the scheme is continuously optimized according to the feedback information of the control scheme, so that the control scheme can be more personalized to meet different use preferences of each user.

Optionally, the use of the indoor unit should consider not only the use space scenario but also the use time scenario. Based on this, when the indoor unit operates in the cooling mode, an embodiment of the present application provides a control method of an air conditioner, as shown in fig. 7, the method includes the following steps:

s201, the server judges whether the current operation time period of the indoor unit belongs to the daytime time period.

And if the current time is between 8:00 and 22:00, the server determines that the current operation time period belongs to the daytime time period.

It should be noted that, after the server determines the control scheme of the indoor unit according to the usage space scene of the indoor unit, the server may further determine whether the current operation time period belongs to the daytime time period. If yes, the server executes steps S203-S204. If not, the server may determine that the current operation time period belongs to the night time period, and execute step S202 according to the low noise requirement of the user in the night time period.

S202, the server determines that the control scheme of the indoor unit is a low-noise control scheme.

For example, if the server determines that the current operation time period of the indoor unit does not belong to the daytime time period, the server may determine that the control scheme of the indoor unit is the low-noise control scheme no matter the use space scene of the indoor unit.

S203, the server judges whether the outdoor temperature is higher than a first preset temperature.

The first preset temperature can be a reasonable temperature value of 38 ℃, 40 ℃ and the like.

If so, the server determines that the outdoor temperature is greater than the preset temperature, which indicates that higher cooling capacity is required to achieve the target cooling effect, so that the server may perform step S204. If not, the server does not execute the step S204, and the control scheme of the indoor unit is maintained as the current control scheme.

And S204, the server determines that the control scheme of the indoor unit is a high-capacity scheme.

According to the embodiment shown in fig. 7, the control scheme of the indoor unit of the air conditioner can be further determined according to the current time and the current environment temperature, so that the control scheme is more flexible, conforms to the actual environment, and improves the use experience of users.

Optionally, the use of the indoor unit should consider not only the use space scenario but also the use time scenario. Based on this, when the indoor unit operates in the heating mode, an embodiment of the present application provides a control method of an air conditioner, as shown in fig. 8, the method includes the following steps:

s301, the server judges whether the current operation time period of the indoor unit belongs to the daytime time period.

Wherein, the server can also set the daytime period to be between 8:00 and 22: 00.

If the server determines that the current operation period belongs to the daytime period, the server performs steps S303 to S304. Otherwise, the server may perform step S202.

S302, the server determines that the control scheme of the indoor unit is a low-noise control scheme.

For example, taking the control parameters in step S105 as an example, when the air conditioner is in the heating mode, the low noise control scheme may be: the exhaust pressure is controlled at Pd2, the change speed of the compressor frequency is set as V2, the supercooling degree of the refrigerant is controlled at Sc4, and the fan rotating speed is set as R2.

S303, the server judges whether the outdoor temperature is lower than a second preset temperature.

Wherein, the second preset temperature can be 5 ℃, 0 ℃, 10 ℃ or the like.

If so, the server determines that the outdoor temperature is less than the preset temperature, which indicates that a higher heating capacity is required to achieve the target heating effect, so that the server may perform step S304. If not, the server does not execute the step S304, and the control scheme of the indoor unit is maintained as the current control scheme.

And S304, the server determines that the control scheme of the indoor unit is a high-capacity scheme.

For example, also taking the control parameter in step S105 as an example, when the air conditioner is in the heating mode, the high-capacity scheme may be: the exhaust pressure is controlled at Pd4, the change speed of the compressor frequency is set as V4, the supercooling degree of the refrigerant is controlled at Sc2, and the fan rotating speed is set as R4.

According to the embodiment shown in fig. 8, the indoor unit of the air conditioner can be controlled by the low-noise control scheme in the heating mode during the night time, so as to meet the low-noise requirement of the user during the night time. And when the temperature is too low in the daytime, the indoor unit of the air conditioner is controlled by a high-energy control scheme in a heating mode, so that the heating effect of the air conditioner is ensured, and the use experience of a user is improved.

The above description has presented the scheme provided herein primarily from a methodological perspective. It is understood that each node, for example, a control device of an air conditioner, includes a hardware structure and/or a software module corresponding to each function in order to implement the above functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The present application may divide the function modules of the control device of the air conditioner according to the above method, for example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation.

Fig. 9 is a schematic diagram illustrating a control apparatus of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 9, the control apparatus 1000 of the air conditioner includes a transceiver unit 1001 and a processing unit 1002.

A transceiving unit 1001 for acquiring a plurality of historical operation records of an indoor unit of an air conditioner, the historical operation records including a historical operation time period of the indoor unit;

the processing unit 1002 is configured to determine an operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit; determining a use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period; determining a control scheme of the indoor unit according to a use space scene of the indoor unit;

the transceiver unit 1001 is further configured to send a first control instruction to the air conditioner, where the first control instruction is used to instruct the air conditioner to execute a control scheme of the indoor unit.

In some embodiments, the transceiver 1001 is further configured to obtain feedback information of the control scheme, where the feedback information includes an operation parameter of the indoor unit of the air conditioner under the control scheme; the processing unit 1002 is further configured to update a control scheme of the indoor unit according to the feedback information; the transceiver unit 1001 is further configured to send a second control instruction to the air conditioner, where the second control instruction is used to instruct the air conditioner to execute the updated control scheme.

In some embodiments, the transceiver 1001 is further configured to obtain current environment information, where the environment information includes one or more of an indoor temperature, an indoor humidity, or an outdoor temperature; (ii) a The processing unit 1002 is specifically configured to determine a control scheme of the indoor unit according to the usage space scene of the indoor unit and the current environment information.

In some embodiments, the usage space scenario includes one or more of a bedroom, a living room, a kitchen, a study, and an activity room.

The elements in fig. 9 may also be referred to as modules, for example, the processing elements may be referred to as processing modules. In the embodiment shown in fig. 9, the names of the respective units may not be those shown in the figure, and for example, the transceiver unit may also be referred to as a communication unit.

The respective units in fig. 9, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or make a contribution to the prior art, or all or part of the technical solutions may be implemented in the form of a software product stored in a storage medium, and including several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. A storage medium storing a computer software product comprising: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

As shown in fig. 10, the control device 2000 of the air conditioner includes a processor 2001, and optionally, a memory 2002 and a transceiver 2003 connected to the processor 2001. The processor 2001, memory 2002, and transceiver 2003 are connected by a bus 2004.

The processor 2001 may be a Central Processing Unit (CPU), a general purpose processor Network (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 2001 may also be any other means having a processing function such as a circuit, device or software module. The processor 2001 may also include a plurality of CPUs, and the processor 2001 may be one single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data (e.g., computer program instructions).

Memory 2002 may be a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, but is not limited to, electrically erasable programmable read-only memory (EEPROM), compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 2002 may be separate or integrated with the processor 2001. The memory 2002 may include, among other things, computer program code. The processor 2001 is configured to execute the computer program code stored in the memory 2002, thereby implementing the methods provided by the embodiments of the present application.

The transceiver 2003 may be used to communicate with other devices or communication networks (e.g., ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc.). The transceiver 2003 may be a module, a circuit, a transceiver, or any device capable of enabling communication.

The bus 2004 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 2004 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.

The embodiment of the present application further provides a computer-readable storage medium, which includes computer-executable instructions, and when the computer-readable storage medium is run on a computer, the computer is caused to execute any one of the methods provided by the above embodiments.

The embodiments of the present application also provide a computer program product containing instructions for executing a computer, which when executed on a computer, causes the computer to perform any one of the methods provided by the above embodiments.

An embodiment of the present application further provides a chip, including: a processor coupled to the memory through the interface, and an interface, when the processor executes the computer program or the computer execution instructions in the memory, the processor causes any one of the methods provided by the above embodiments to be performed.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. The processes or functions described in accordance with the embodiments of the present application occur, in whole or in part, when computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer executable instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer executable instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for controlling an air conditioner, the method comprising:

acquiring a plurality of historical operation records of an indoor unit of the air conditioner, wherein the historical operation records comprise historical operation time periods of the indoor unit;

determining the operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit;

determining a use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period;

determining a control scheme of the indoor unit according to a use space scene of the indoor unit;

and sending a first control instruction to the air conditioner, wherein the first control instruction is used for instructing the air conditioner to execute a control scheme of the indoor unit.

2. The method of claim 1, further comprising:

acquiring feedback information of the control scheme, wherein the feedback information comprises operation parameters of an indoor unit of the air conditioner under the control scheme;

updating the control scheme of the indoor unit according to the feedback information;

and sending a second control instruction to the air conditioner, wherein the second control instruction is used for instructing the air conditioner to execute the updated control scheme.

3. The method of claim 1, wherein after the determining the usage space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period, the method further comprises:

acquiring current environment information, wherein the environment information comprises one or more of indoor temperature, indoor humidity or outdoor temperature;

the determining the control scheme of the indoor unit according to the use space scene of the indoor unit specifically comprises:

and determining a control scheme of the indoor unit according to the use space scene of the indoor unit and the current environmental information.

4. The method of any one of claims 1 to 3, wherein the usage space scenario comprises one or more of a bedroom, a living room, a kitchen, a study, and an activity room.

5. A control apparatus of an air conditioner, characterized in that the apparatus comprises:

the receiving and sending unit is used for acquiring a plurality of historical operation records of an indoor unit of the air conditioner, and the historical operation records comprise historical operation time periods of the indoor unit;

the processing unit is used for determining the operation frequency of the indoor unit in each preset time period according to a plurality of historical operation records of the indoor unit; determining a use space scene of the indoor unit according to the operation frequency of the indoor unit in each preset time period; determining a control scheme of the indoor unit according to a use space scene of the indoor unit;

the transceiver unit is further configured to send a first control instruction to the air conditioner, where the first control instruction is used to instruct the air conditioner to execute a control scheme of the indoor unit.

6. The apparatus of claim 5,

the transceiver unit is further configured to acquire feedback information of the control scheme, where the feedback information includes an operation parameter of the indoor unit of the air conditioner under the control scheme;

the processing unit is further configured to update the control scheme of the indoor unit according to the feedback information;

the transceiver unit is further configured to send a second control instruction to the air conditioner, where the second control instruction is used to instruct the air conditioner to execute the updated control scheme.

7. The apparatus of claim 5,

the transceiver unit is further configured to acquire current environment information, where the environment information includes one or more of indoor temperature, indoor humidity, or outdoor temperature;

the processing unit is specifically configured to determine a control scheme of the indoor unit according to the usage space scene of the indoor unit and the current environmental information.

8. The apparatus of any one of claims 5 to 7, wherein the usage space scenario comprises one or more of a bedroom, a living room, a kitchen, a study, and an activity room.

9. A server, characterized in that the server comprises:

at least one processor;

at least one reservoir;

the at least one memory has stored therein computer instructions that, when executed by the server, cause the server to perform the method of any of claims 1-4.

10. A computer-readable storage medium comprising computer instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 4.