阅读说明：本技术 多联机空调的vip模式控制方法 (VIP mode control method of multi-split air conditioner ) 是由 尹鹏 赵永俊 蔺怀钰 徐艳丽 丁万超 陈九龙 时斌 于 2021-07-23 设计创作，主要内容包括：本发明属于空调控制领域,具体提供一种多联机空调的VIP模式控制方法,旨在解决现有多联机空调系统无法实时获取空调区域中的人员情况,并自动控制室内机进入或者退出VIP模式的问题。为此目的,本发明的方法包括：获取多联机空调的每个室内机对应的空调区域内的人员数量、人员密度和人员平均运动等级,并根据人员数量、人员密度和人员平均运动等级中的至少一项,控制对应室内机工作以及选择性地进入VIP模式。应用本发明的方法,通过限制VIP模式下的空调参数手控调节的范围,既可以避免因参数设定不合理导致的能源浪费,又可以在保证用户环境舒适性的同时,实现空调的节能环保。(The invention belongs to the field of air conditioner control, and particularly provides a VIP mode control method of a multi-split air conditioner, aiming at solving the problems that the existing multi-split air conditioner system cannot acquire the personnel condition in an air conditioning area in real time and automatically controls an indoor unit to enter or exit a VIP mode. To this end, the method of the invention comprises: the method comprises the steps of obtaining the number of personnel, the personnel density and the average personnel movement level in an air conditioning area corresponding to each indoor unit of the multi-split air conditioner, and controlling the corresponding indoor units to work and selectively enter a VIP mode according to at least one of the number of personnel, the personnel density and the average personnel movement level. By limiting the range of manually adjusting the air conditioner parameters in the VIP mode, the method of the invention can avoid energy waste caused by unreasonable parameter setting, and can realize energy saving and environmental protection of the air conditioner while ensuring the environmental comfort of users.)

1. A VIP mode control method of a multi-split air conditioner, the method comprising:

acquiring the number of personnel, the personnel density and the average personnel movement grade in an air conditioning area corresponding to each indoor unit of the multi-split air conditioner;

controlling the corresponding indoor unit to work and selectively enter a VIP mode according to at least one of the personnel number, the personnel density and the average personnel movement level;

wherein the VIP mode is that one or more indoor units of the multi-split air conditioner have a larger manual parameter adjustment range relative to other indoor units of the multi-split air conditioner.

2. The VIP mode control method of a multi-split air conditioner as claimed in claim 1, wherein the controlling of the corresponding indoor unit to operate and selectively enter the VIP mode according to at least one of the number of people, the density of people, and the average movement level of people specifically includes:

controlling the corresponding indoor units to be turned on or off according to the number of the people;

when the corresponding indoor unit works in a refrigeration mode, controlling the indoor unit to work according to the personnel density, and selectively entering the VIP mode;

and when the corresponding indoor unit works in the heating mode, controlling the indoor unit to work according to the average movement level of the people, and selectively entering the VIP mode.

3. The VIP mode control method of a multi-split air conditioner as claimed in claim 2, wherein the step of controlling the corresponding indoor units to be turned on or off according to the number of people specifically includes:

when N is present_pWhen the indoor unit is 0, controlling the indoor unit to be closed; and/or

When N is present_pWhen the current time is more than 0, controlling the indoor unit to be started;

wherein N is_pIs the number of people.

4. The VIP mode control method of a multi-split air conditioner as claimed in claim 2, wherein when the corresponding indoor unit operates in a cooling mode, the setting rule of the VIP mode is:

the higher the personnel density is, the smaller the manual temperature regulation lower limit value of the VIP mode is, and the higher the wind speed upper limit of the manual wind regulation is.

5. The VIP mode control method of a multi-split air conditioner as claimed in claim 4, wherein the step of controlling the operation of the corresponding indoor unit according to the human density and selectively entering the VIP mode when the indoor unit operates in the cooling mode specifically includes:

when P is present_d≤THR1_P_dWhen the indoor unit works in a refrigeration energy-saving mode, the lower limit value of locking manual control temperature regulation is a refrigeration energy-saving low-temperature threshold value, and the upper limit value of the wind speed of locking manual control wind regulation is a first wind speed, wherein the operation parameters of the indoor unit in the refrigeration energy-saving mode are as follows: the temperature set value is the refrigeration energy-saving low-temperature threshold value, and the wind speed set value is the first wind speed;

when THR1_ P_d＜P_d≤THR2_P_dWhen the indoor unit works in a common refrigeration mode, the air conditioner indoor unit enters a first VIP mode, the lower limit value of locking manual control temperature regulation is a first temperature lower limit value, and the upper limit value of the wind speed of locking manual control wind regulation is a second wind speed;

when P is present_d＞THR2_P_dWhen the indoor unit works in a common refrigeration mode, the air conditioner indoor unit enters a second VIP mode, the lower limit value of the manual control temperature regulation is locked as a second temperature lower limit value, and the wind speed limit of the manual control wind regulation is unlocked;

wherein, P_dFor the person density, THR1_ P_dTHR2_ P as the first person density threshold_dAnd the second temperature lower limit value is smaller than the first temperature lower limit value, the first temperature lower limit value is smaller than the refrigeration energy-saving low-temperature threshold value, and the first wind speed is smaller than the second wind speed.

6. The VIP mode control method of a multi-split air conditioner as claimed in claim 2, wherein when the corresponding indoor unit operates in the heating mode, the setting rule of the VIP mode is:

the larger the average movement level of the personnel is, the smaller the manual temperature regulation upper limit value of the VIP mode is, and the higher the wind speed upper limit of the manual wind regulation is.

7. The VIP mode control method of a multi-split air conditioner as claimed in claim 6, wherein the step of controlling the operation of the indoor unit according to the average motion level of the human body and selectively entering the VIP mode when the corresponding indoor unit operates in the heating mode specifically includes:

when S is_l≤THR1_S_lWhen the indoor unit works in a heating energy-saving mode, the upper limit value of locking manual temperature regulation is a heating energy-saving high-temperature threshold value, and the upper limit value of locking manual air regulation is a third air speed, wherein the operation parameters of the indoor unit in the heating energy-saving mode are as follows: the temperature set value is the heating energy-saving high-temperature threshold value, and the wind speed set value is the third wind speed;

when THR1_ S_l≤S_l≤THR2_S_lWhen the indoor unit works in a common heating mode, the air conditioner indoor unit enters a third VIP mode, the upper limit value of the manual temperature regulation is locked as a first temperature upper limit value, and the upper limit value of the wind speed of the manual wind regulation is locked as a fourth wind speed;

when S is_l≤THR2_S_lWhen the indoor unit works in a common heating mode, the air conditioner indoor unit enters a fourth VIP mode, the upper limit value of the manual temperature regulation is locked as the second upper limit value of the temperature, and the wind speed limit of the manual air regulation is unlocked;

wherein S is_lFor the average movement level of the person, S_lIs an integer greater than or equal to zero, S_lGreater values of (A) indicate more vigorous movement of the person, THR1_ S_lFor the first person average motion level threshold, THR2_ S_lAnd the second temperature lower limit value is smaller than the first temperature lower limit value which is smaller than the default temperature lower limit value, and the third wind speed is smaller than the fourth wind speed.

8. The VIP mode control method of a multi-split air conditioner according to claim 1, wherein the step of obtaining the number of people, the density of people, and the average movement level of people in the air-conditioning area corresponding to each indoor unit of the multi-split air conditioner specifically includes:

acquiring the number of people, the density of people and the average movement level of people in the corresponding air conditioning area through a radar arranged at the air outlet of each indoor unit of the multi-split air conditioner, and/or

And acquiring the number of personnel, the personnel density and the average movement level of the personnel in the corresponding air conditioning area through an independent radar arranged in the air conditioning area corresponding to each indoor unit of the multi-split air conditioner.

9. The VIP mode control method of a multi-split air conditioner as claimed in claim 8, wherein the radar is a millimeter wave radar.

10. A multi-split air conditioner comprising a controller, wherein the controller is configured to perform the VIP mode control method of any one of claims 1 to 9.

Technical Field

The invention belongs to the field of air conditioner control, and particularly relates to a VIP mode control method of a multi-split air conditioner.

Background

When the multi-split air conditioner is used, an indoor unit of the air conditioner is often set to be in an energy-saving mode for the purposes of energy conservation and environmental protection, and the manual adjustment range of air conditioner parameters is limited to prevent the air conditioner from being used excessively. In the same air conditioning system, there may be air conditioning indoor units in special areas, such as when cooling, in areas with higher density of people, it is necessary to set lower temperature and larger air output. In order to meet the requirements, a VIP mode of the multi-split air conditioner is set, namely, one or more indoor units of the multi-split air conditioner have a larger manual parameter adjustment range relative to other indoor units, for example, after the air conditioner enters a refrigeration energy-saving mode, the indoor units in a non-VIP mode limit the refrigeration temperature to be within a manual range of 26-30 ℃; when the indoor unit is in the VIP mode, the manual control temperature is allowed to range from 20 ℃ to 30 ℃.

However, the current multi-split air conditioning system mostly realizes the entering or exiting of the indoor unit to the VIP mode in a manual mode. When the personnel condition in the air-conditioning area is dynamic, such as the number of meeting personnel in a meeting room, the personnel density in a business area, and the like, the adjustment of the VIP mode of the air conditioner is difficult to realize in a manual mode. How to detect the personnel condition in the air-conditioning area in real time and automatically control the indoor unit to enter or exit the VIP mode, so that the multi-split air conditioner is more convenient to control, and the method is a problem to be solved urgently in the field.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

The invention aims to solve the technical problems, namely, the problems that the existing multi-split air conditioning system cannot detect the personnel condition in the air conditioning area in real time and automatically control the indoor unit to enter or exit the VIP mode are solved.

In a first aspect, the present invention provides a VIP mode control method of a multi-split air conditioner, the method including:

acquiring the number of personnel, the personnel density and the average personnel movement grade in an air conditioning area corresponding to each indoor unit of the multi-split air conditioner;

controlling the corresponding indoor unit to work and selectively enter a VIP mode according to at least one of the personnel number, the personnel density and the average personnel movement level;

wherein the VIP mode is that one or more indoor units of the multi-split air conditioner have a larger manual parameter adjustment range relative to other indoor units of the multi-split air conditioner.

In an embodiment of the above-mentioned VIP mode control method for a multi-split air conditioner, "controlling the corresponding indoor unit to operate and selectively enter the VIP mode according to at least one of the number of people, the density of people, and the average movement level of people" specifically includes:

controlling the corresponding indoor units to be turned on or off according to the number of the people;

when the corresponding indoor unit works in a refrigeration mode, controlling the indoor unit to work according to the personnel density, and selectively entering the VIP mode;

and when the corresponding indoor unit works in the heating mode, controlling the indoor unit to work according to the average movement level of the people, and selectively entering the VIP mode.

In an embodiment of the above-mentioned VIP mode control method for a multi-split air conditioner, "controlling the corresponding indoor units to be turned on or off according to the number of people" includes:

when N is present_pWhen the indoor unit is 0, controlling the indoor unit to be closed; and/or

When N is present_pWhen the current time is more than 0, controlling the indoor unit to be started;

wherein N is_pIs the number of people.

In an embodiment of the above-mentioned VIP mode control method for a multi-split air conditioner, when the corresponding indoor unit operates in the cooling mode, the setting rule of the VIP mode is:

the higher the personnel density is, the smaller the manual temperature regulation lower limit value of the VIP mode is, and the higher the wind speed upper limit of the manual wind regulation is.

In an embodiment of the above-mentioned VIP mode control method of a multi-split air conditioner, "when a corresponding indoor unit operates in a cooling mode, the indoor unit is controlled to operate according to the human density, and the VIP mode is selectively entered" specifically includes:

when P is present_d≤THR1_P_dWhen the indoor unit works in a refrigeration energy-saving mode, the lower limit value of locking manual control temperature regulation is a refrigeration energy-saving low-temperature threshold value, and the upper limit value of the wind speed of locking manual control wind regulation is a first wind speed, wherein the operation parameters of the indoor unit in the refrigeration energy-saving mode are as follows: the temperature set value is the refrigeration energy-saving low-temperature threshold value, and the wind speed set value is the first wind speed;

when THR1_ P_d＜P_d≤THR2_P_dWhen the indoor unit works in a common refrigeration mode, the air conditioner indoor unit enters a first VIP mode, the lower limit value of locking manual control temperature regulation is a first temperature lower limit value, and the upper limit value of the wind speed of locking manual control wind regulation is a second wind speed;

when P is present_d＞THR2_P_dWhen the indoor unit works in a common refrigeration mode, the air conditioner indoor unit enters a second VIP mode, the lower limit value of the manual control temperature regulation is locked as a second temperature lower limit value, and the wind speed limit of the manual control wind regulation is unlocked;

wherein, P_dFor the person density, THR1_ P_dTHR2_ P as the first person density threshold_dAnd the second temperature lower limit value is smaller than the first temperature lower limit value, the first temperature lower limit value is smaller than the refrigeration energy-saving low-temperature threshold value, and the first wind speed is smaller than the second wind speed.

In an embodiment of the above-mentioned VIP mode control method for a multi-split air conditioner, when the corresponding indoor unit operates in the heating mode, the setting rule of the VIP mode is:

the larger the average movement level of the personnel is, the smaller the manual temperature regulation upper limit value of the VIP mode is, and the higher the wind speed upper limit of the manual wind regulation is.

In an embodiment of the above-mentioned VIP mode control method of a multi-split air conditioner, "when a corresponding indoor unit operates in a heating mode, the indoor unit is controlled to operate according to the average motion level of the person, and the VIP mode is selectively entered" specifically includes:

when S is_l≤THR1_S_lWhen the indoor unit works in a heating energy-saving mode, the upper limit value of locking manual temperature regulation is a heating energy-saving high-temperature threshold value, and the upper limit value of locking manual air regulation is a third air speed, wherein the operation parameters of the indoor unit in the heating energy-saving mode are as follows: the temperature set value is the heating energy-saving high-temperature threshold value, and the wind speed set value is the third wind speed;

when THR1_ S_l≤S_l≤THR2_S_lWhen the indoor unit works in a common heating mode, the air conditioner indoor unit enters into a normal heating modeIn the third VIP mode, the upper limit value of the manual control temperature regulation is locked as the first temperature upper limit value, and the upper limit value of the wind speed of the manual control wind regulation is locked as the fourth wind speed;

when S is_l≤THR2_S_lWhen the indoor unit works in a common heating mode, the air conditioner indoor unit enters a fourth VIP mode, the upper limit value of the manual temperature regulation is locked as the second upper limit value of the temperature, and the wind speed limit of the manual air regulation is unlocked;

wherein S is_lFor the average movement level of the person, S_lIs an integer greater than or equal to zero, S_lGreater values of (A) indicate more vigorous movement of the person, THR1_ S_lFor the first person average motion level threshold, THR2_ S_lAnd the second temperature lower limit value is smaller than the first temperature lower limit value which is smaller than the default temperature lower limit value, and the third wind speed is smaller than the fourth wind speed.

In an embodiment of the above-described VIP mode control method for a multi-split air conditioner, "obtaining the number of people, the density of people, and the average movement level of people in an air-conditioning area corresponding to each indoor unit of the multi-split air conditioner" specifically includes:

acquiring the number of people, the density of people and the average movement level of people in the corresponding air conditioning area through a radar arranged at the air outlet of each indoor unit of the multi-split air conditioner, and/or

And acquiring the number of personnel, the personnel density and the average movement level of the personnel in the corresponding air conditioning area through an independent radar arranged in the air conditioning area corresponding to each indoor unit of the multi-split air conditioner.

In one embodiment of the above VIP mode control method of the multi-split air conditioner, the radar is a millimeter wave radar.

In a second aspect, the present invention provides a multi-split air conditioner including a controller configured to be able to perform any one of VIP mode control methods of the multi-split air conditioner.

Under the condition of adopting the technical scheme, the invention can detect personnel information such as personnel number, personnel density, personnel average movement grade and the like in the multi-split air-conditioning area through a millimeter wave radar, automatically control the indoor unit to work in real time and dynamically according to the personnel information, enter or exit a VIP mode of a multi-split air conditioner, and avoid energy waste caused by unreasonable parameter setting by limiting the range of air-conditioning parameters in the VIP mode, thereby realizing energy conservation and environmental protection of the air conditioner and ensuring the comfort of the user environment.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a flowchart illustrating major steps of a VIP mode control method of a multi-split air conditioner according to an embodiment of the present invention.

Fig. 2 is a flowchart illustrating a specific implementation of step S102 in fig. 1.

Fig. 3 is a flowchart illustrating a specific implementation of step S202 in fig. 2.

Fig. 4 is a schematic diagram of a specific implementation flow of step S203 in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. For example, although the preferred embodiment of the present invention is to detect the information of the people in the air-conditioned area by the millimeter wave radar, the protection scope of the present invention should not be limited thereto, but should cover the case of adopting any other detection method.

Referring to fig. 1, fig. 1 is a flowchart illustrating major steps of a VIP mode control method of a multi-split air conditioner according to an embodiment of the present invention. As shown in fig. 1, the control method of the present invention includes:

step S101: acquiring the number of personnel, the personnel density and the average personnel movement grade in an air conditioning area corresponding to each indoor unit of the multi-split air conditioner;

step S102: and controlling the corresponding indoor unit to work and selectively entering the VIP mode according to at least one of the number of the personnel, the personnel density and the average personnel movement level.

In step S101, information such as the number of persons in the air-conditioned area, the density of persons, and the average movement level of persons is preferably acquired using a millimeter wave radar. The millimeter wave radar is a detection radar working in a millimeter wave (with the wavelength of 1-10 mm and the frequency of 30-300 GHz) band, is a wireless sensing technology, and can extract and find the characteristics of the position, shape, motion characteristic and the like of a target by analyzing the radar echo characteristics of the received target, so as to determine the information of the number of personnel in a space region, the positions of the personnel and the like; and moreover, the phase change of FMCW (Frequency Modulated Continuous Wave) signals can be analyzed and processed, so that the vital signs of respiration, heart rate and the like of the personnel can be detected, and richer information such as the movement grade of the personnel can be obtained.

When the millimeter wave radar is built in the air outlet of the indoor unit of the multi-split air conditioner, the millimeter wave radar carried by the air conditioner can be directly used for detecting personnel information.

When the multi-split air conditioner is not provided with the millimeter wave radar, an independent millimeter wave radar system can be installed in the air conditioner area to detect personnel information. At this time, the installation position of the independent millimeter wave radar can be fixed near the air outlet of the indoor unit or at a proper position of the roof.

Before the method is implemented, the corresponding relation between the millimeter wave radar detection area and the position of the indoor unit is also required to be established according to the building plan of the air conditioning area, the installation position of the indoor unit, the position of the millimeter wave radar and the like.

Continuing to read fig. 2, step S102 specifically includes:

step S201: controlling the corresponding indoor units to be turned on or off according to the number of the people;

step S202: when the corresponding indoor unit works in a refrigeration mode, controlling the indoor unit to work according to the personnel density, and selectively entering a VIP mode;

step S203: and when the corresponding indoor unit works in the heating mode, controlling the indoor unit to work according to the average movement level of the personnel, and selectively entering the VIP mode.

Step S201 can realize that a person in the air-conditioning area starts the indoor unit and closes the indoor unit, and step S201 specifically includes:

then, N_pControlling the indoor unit to be closed when the indoor unit is 0; and/or

When N is present_pWhen the current time is more than 0, controlling the indoor unit to be started;

wherein N is_pNumber of human members.

In step S202, when the air conditioner is operated in the cooling mode, the setting rule of the VIP mode control is: the higher the personnel density is, the smaller the manual temperature regulation lower limit value of the VIP mode is, and the higher the wind speed upper limit of the manual wind regulation is. The reason for adopting the rule is that the human body can be regarded as a heat source and emits heat, and the more the number of people, the more the heat is emitted, and the influence on the environment is larger. Therefore, in general, when cooling in summer, if the number of people in a room is large, the cooling capacity of the air conditioner may need to be increased by taking measures such as reducing the set temperature and increasing the air speed of the air outlet, so as to meet the requirement of temperature comfort.

Next, a specific implementation method of step S202 is described with reference to fig. 3.

As an example, in air conditioning control, the density of people is generally the entire population of people in a certain area, and therefore, a smaller area per unit area is not desirable. In the present embodiment, 10 square meters are used as a unit area. The following parameters were set:

the rule of manual temperature adjustment and setting is as follows: the second lower temperature limit value < the first lower temperature limit value < the refrigeration energy-saving low-temperature threshold value is set as follows as an example:

the refrigerating energy-saving low-temperature threshold value is 26 ℃,

the first lower temperature limit is 24 c,

the second temperature lower limit value is 20 ℃,

the setting rule of the wind speed is as follows: the first wind speed is less than the second wind speed,

the first wind speed is a low wind speed,

the second wind speed is a high wind speed,

setting a first person density threshold THR1_ P_dIs 3 persons/10 square meters,

setting a second person density threshold THR2_ P_d6 persons/10 square meters.

The millimeter wave radar detects the number of personnel in the air conditioning area at regular time and calculates the personnel density P according to the number of personnel and the area of the radar detected air conditioning area_dDensity of persons P_dThe calculation method comprises the following steps: number of people/area of air conditioned area.

N after people enter air-conditioning area_pAnd if the temperature is higher than 0, the indoor unit of the air conditioner starts to work and is in a refrigeration mode according to the working mode setting of the air conditioner.

Judging the personnel density P_dAnd a first person density threshold THR1_ P_dSecond person density threshold THR2_ P_dThe magnitude relationship of (1).

Case 1: p_d≤3

The density of people in the air-conditioned area is less than or equal to a first people density threshold THR1_ P_d. At this time, the indoor unit works in a cooling energy-saving mode, and the default operation parameters are as follows: the temperature set value is a refrigeration energy-saving low-temperature threshold value of 26 ℃, and the wind speed set value is a first wind speed low wind; the lower limit value of the locking manual control temperature regulation is a refrigeration energy-saving low-temperature threshold value of 26 ℃, and the upper limit value of the wind speed of the locking manual control wind regulation is a first wind speed low wind.

Case 2: 3 < P_d≤6

The density of people in the air-conditioning area is between the first person density threshold THR1_ P_dAnd a second person density threshold value THR2_ P_dIn the meantime. At the moment, the number of people in the air-conditioning area is increased, the indoor unit of the air conditioner enters a first VIP mode, the manual adjustment range of air-conditioning parameters is expanded, and the lower limit value of manual temperature adjustment is changed to 24 ℃; the limitation of a manual wind speed adjusting range is enlarged, the upper limit of the wind speed is the second wind speed high wind, and a user can manually set the high wind and the wind quantity below the high wind according to different air conditioner models, such as high wind, medium wind, low wind and the like. When the number of people in the air-conditioning area is increased and the density of people is increased, the ambient temperature is increased, and the indoor unit works at the set temperatureAnd when the air can not be effectively cooled under the condition of the air speed, the user can manually adjust the air conditioner parameters, and the set temperature is reduced and/or the air speed is increased, so that the ambient temperature is reduced.

Case 3: p_d＞6

The person density in the air-conditioned area is greater than a second person density threshold value THR2_ P_d. At the moment, the air conditioner indoor unit enters a second VIP mode, the manual adjustment range of air conditioner parameters is further expanded, the lower limit value of manual temperature adjustment is changed to 20 ℃, the wind speed limit of manual wind adjustment is unlocked, and a user can manually set low wind, medium wind, high wind, strong wind, automatic wind and the like according to different air conditioner models.

In step S203, when the air conditioner operates in the heating mode, the setting rule of the VIP mode control is: the larger the average movement level of the personnel is, the smaller the upper limit value of the manual temperature regulation in the VIP mode is, and the higher the upper limit value of the wind speed of the manual wind regulation is. This rule is adopted because, the human body can be regarded as a heat source, the more the movement is, the more heat is emitted, the personnel can influence the surrounding environment (the surrounding temperature can be increased), the higher environmental temperature is not needed, therefore, in the winter heating, if the personnel movement level is higher, the heating capacity of the air conditioner can be reduced by reducing the upper limit value of the temperature setting, so as to meet the requirement of temperature comfort.

The following describes a specific implementation method of step S203 with reference to fig. 4.

In the embodiment, the detection of each person movement level can be realized by the scheme of the AWR 1642 millimeter wave radar device. The device manufacturer provides a Demo board, detailed design and development data such as FFT (fast Fourier transform), band-pass filter and the like, and provides a complete motion grade judging method, the method can calculate the heartbeat and respiratory frequency of a human body through the phase change of FMCW (frequency modulated continuous wave) radar signals, and then integrates the heartbeat, respiratory frequency and other data to obtain 11 motion grades of an integer from 0 to 10, wherein the larger the numerical value is, the more violent the motion of a person is. And after the motion grades of each person in the air-conditioning area are obtained, adding the motion grades of all the persons, and dividing the sum by the total number of the persons to obtain the average motion grade Sl of the persons in the air-conditioning area.

As an example, in the heating mode,

the rule of the temperature regulation and setting is as follows: the second upper temperature limit value < the first upper temperature limit value < the heating energy-saving high-temperature threshold value is set as follows as an example:

the heating energy-saving high-temperature threshold is 22 ℃,

the first upper temperature limit is 20 c,

the second upper temperature limit is 18 c,

the setting rule of the wind speed is as follows: the third wind speed is less than the fourth wind speed,

the third wind speed is a wind stroke,

the fourth wind speed is a high wind speed,

setting a first person average movement level threshold THR1_ S_lIs a non-volatile organic compound (I) with a value of 0,

setting a second person average motion level threshold THR2_ S_lIs 5.

N after people enter air-conditioning area_pAnd if the temperature is higher than 0, the indoor unit of the air conditioner starts to work and is in a heating mode according to the working mode setting of the air conditioner.

Judging the average motion level of the person and a first person average motion level threshold THR1_ S_lSecond person average movement level threshold THR2_ S_lThe magnitude relationship of (1).

Case 4: s_l≤0

The average movement level of the persons in the air-conditioned area is less than or equal to the first average movement level threshold value THR1_ S_l. At this time, it can be considered that the personnel are mainly in a static state, the indoor unit works in a heating energy-saving mode, and the default operation parameters are as follows: the temperature set value is a heating energy-saving high-temperature threshold value of 22 ℃, and the wind speed set value is a third wind speed wind; the upper limit value of the locking manual control temperature adjustment is 22 ℃ of the heating energy-saving high-temperature threshold, and the upper limit value of the wind speed of the locking manual control wind adjustment is the wind speed of the third wind speed.

Case 5: 0 < S_l≤5

The average movement level of the people in the air-conditioning area is between the first average movement level threshold THR1_ S_lAnd a second person average motion level threshold THR2_ S_lIn the meantime. At this time, the indoor unit of the air conditioner enters into the firstA third VIP mode is in the requirements of energy conservation and actual human body feeling, the range of manual adjustment of air conditioner parameters is reduced, and the upper limit value of manual temperature adjustment is changed to 20 ℃; however, the limitation of the manual adjustment range of the wind speed is simultaneously enlarged, the upper limit of the wind speed is the second wind speed high wind, and the user can manually set the wind volume below the high wind and the wind volume below the high wind, such as high wind, medium wind, low wind and the like according to different air conditioner models. In this embodiment, the reason for adjusting the wind speed is to consider that the upper limit value of the temperature is already reduced, and if insufficient heating occurs, the wind speed can be used for making up the insufficient heating, so that the method is more humanized.

Case 6: s_l＞5

The average movement level of the persons in the air-conditioning area is greater than a second average movement level threshold THR2_ S_l. At the moment, the indoor unit of the air conditioner enters a fourth VIP mode, the manual adjustment range of the air conditioner parameters is further reduced, the upper limit value of manual temperature adjustment is changed to 18 ℃, the wind speed limit of manual wind adjustment is unlocked, and a user can manually set low wind, medium wind, high wind, strong wind, automatic wind and the like according to different air conditioner models.

It should be noted that, in some other embodiments, the method for acquiring the number of people, the density of people, and the average movement level of people in the air-conditioning area may be acquired by a camera and/or an infrared pyroelectric device, in addition to the millimeter wave radar described in this embodiment. Such modifications and substitutions are intended to fall within the scope of the present invention without departing from the spirit thereof.

Further, the invention also provides a multi-split air conditioner. In a multi-split air conditioner according to the present invention, a controller may be configured to store and execute a program of the VIP mode control method of the multi-split air conditioner of the above-described method embodiment, including, but not limited to, a program of the VIP mode control method of the multi-split air conditioner of the above-described method embodiment. For convenience of explanation, only the parts related to the embodiments of the present invention are shown, and details of the specific techniques are not disclosed.

Those of skill in the art will appreciate that the method steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of electronic hardware and software. Whether such functionality is implemented as electronic hardware or software 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.

It should be noted that the terms "first," "second," "third," "fourth," and the like in the description and in the claims of the invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing or implying any particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.

It should be noted that in the description of the present application, the term "a and/or B" indicates all possible combinations of a and B, such as a alone, B alone, or a and B.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.