Air conditioner and control method and device thereof, storage medium and computer program product

Abstract

The invention provides an air conditioner, a control method and device of the air conditioner, a storage medium and a computer program product. The method comprises the steps that human body physiological parameters of a user in the environment where the air conditioner is located are monitored; calculating a comprehensive metabolic rate index of the user according to the monitored human body physiological parameters of the user in the environment; according to the calculated comprehensive metabolic rate index of the user, the air supply temperature and / or air supply humidity of the air conditioner are / is adjusted; and / or, according to the calculated comprehensive metabolic rate index of the user, the upper and lower air outlet of the air conditioner is controlled. According to the scheme provided by the invention, the temperature and humidity can be dynamically adjusted in combination with the human physiological parameters, and the up-down air outlet of the up-down air outlet air conditioner is dynamically controlled.

Description

Technical Field

[0001] The present invention relates to the field of control, and in particular to an air conditioner and a control method, device, storage medium and computer program product thereof. Background Art

[0002] With the widespread adoption of the concept of healthy buildings, research on the regulation of indoor dynamic thermal comfort is becoming a key topic in the field of human well-being. Air conditioning control methods based on dynamic thermal comfort in related technologies generally suffer from a single control dimension, often employing feedback regulation mechanisms based on single influencing parameters such as temperature, wind speed, and humidity. While some studies have incorporated human metabolic rate parameters, these lack collaborative analysis with key physiological indicators such as skin temperature, heart rate, and blood flow. Summary of the Invention

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned related technologies and provide an air conditioner and its control method, device, storage medium and computer program product to solve the problems in the related technologies that the control of the air conditioner lacks coordinated analysis with physiological indicators or the air supply adopts a fixed partition mode and fails to establish a dynamic prediction of the wind field and the response of the air supply to the human body's thermal state.

[0004] On the one hand, the present invention provides a method for controlling an air conditioner, comprising: monitoring the human physiological parameters of a user in an environment; calculating a comprehensive metabolic rate index of the user based on the monitored human physiological parameters of the user in the environment; adjusting the supply air temperature and / or supply air humidity of the air conditioner based on the calculated comprehensive metabolic rate index of the user; and / or controlling the upper and lower air outlets of the air conditioner based on the calculated comprehensive metabolic rate index of the user.

[0005] Optionally, the physiological parameters of the user include: a change in the microcirculation blood flow velocity of the user's body surface, a change in the temperature gradient of the user's skin surface, an effective heat dissipation area of the human body, an action intensity coefficient, and at least one of the heart rate variability indicators SDNN and RMSSD; based on the monitored human physiological parameters of the user in the environment, the comprehensive metabolic rate index of the user is calculated, including: calculating the metabolic rate associated with blood flow and skin temperature based on the change in the microcirculation blood flow velocity of the user's body surface, the change in the temperature gradient of the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient; calculating the metabolic rate associated with heart rate variability based on the heart rate variability indicators SDNN and RMSSD; calculating the comprehensive metabolic rate index of the user based on the calculated metabolic rate associated with blood flow and skin temperature and the metabolic rate associated with heart rate variability.

[0006] Optionally, the metabolic rate associated with blood flow and skin temperature is calculated based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient, including: calculating the metabolic rate MET associated with blood flow and skin temperature using the following formula based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient 雷达-热成像 :

[0007]

[0008] Where, ΔV 血流 is the change in blood flow velocity of the microcirculation on the surface of the body, Δt is the time interval for collecting blood flow velocity changes, ΔT 皮肤 is the temperature gradient change on the skin surface, A 体表 is the effective heat dissipation area of the human body, S 动作 is the action intensity coefficient, k1, k2, and k3 are weight coefficients; and / or, calculating the metabolic rate associated with heart rate variability based on the heart rate variability index SDNN and RMSSD, including: calculating the metabolic rate MET associated with heart rate variability based on the heart rate variability index SDNN and RMSSD using the following formula: HRV :

[0009]

[0010] Among them, SDNN is the standard deviation of RR interval, RMSSD is the root mean square of the difference between adjacent RR intervals, γ and δ are weight coefficients;

[0011] and / or calculating a comprehensive metabolic rate index of the user based on the calculated metabolic rate associated with blood flow and skin temperature and the calculated metabolic rate associated with heart rate variability, including:

[0012] The metabolic rate (MET) is related to blood flow and skin temperature. 雷达-热成像 and the metabolic rate MET associated with heart rate variability HRV , use the following formula to calculate the user's comprehensive metabolic rate index MET 综合 :

[0013] MET 综合 =α·MET 雷达-热成像 +β·MET HRV +ε·S 动作

[0014] Among them, α, β and ε are weight coefficients.

[0015] Optionally, adjusting the air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user includes: calculating a current set air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user; and adjusting the air supply temperature of the air conditioner according to the calculated set air supply temperature and an upper limit temperature and a lower limit temperature of a preset air supply temperature range;

[0016] And / or, adjusting the air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user, including: calculating the current target air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user; adjusting the air supply humidity of the air conditioner according to the calculated target air supply humidity and the upper and lower limits of the preset air supply humidity range.

[0017] Optionally, the current set air supply temperature of the air conditioner is calculated based on the calculated comprehensive metabolic rate index of the user, including: obtaining the supply air temperature when the air conditioner is turned on and running in cooling mode as a reference supply air temperature; calculating the current set supply air temperature of the air conditioner based on the reference supply air temperature, the currently calculated comprehensive metabolic rate index of the user, and the comprehensive metabolic rate index of the user calculated last time; and / or adjusting the supply air temperature of the air conditioner based on the calculated set supply air temperature and the upper and lower temperature limits of the preset supply air temperature range, including: when the set supply air temperature is less than or equal to the upper limit temperature of the preset supply air temperature range and greater than or equal to the lower limit temperature of the preset supply air temperature range, adjusting the supply air temperature of the air conditioner according to the set supply air temperature; when the set supply air temperature is greater than the upper limit temperature of the preset supply air temperature range, adjusting the supply air temperature of the air conditioner according to the upper limit temperature of the preset supply air temperature range; when the set supply air temperature is less than the lower limit temperature of the preset supply air temperature range, adjusting the supply air temperature of the air conditioner according to the lower limit temperature of the preset supply air temperature range.

[0018] Optionally, calculating the current set air supply temperature of the air conditioner based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user includes: calculating the current set air supply temperature of the air conditioner based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user using the following formula:

[0019] T 设定 =T 基准 -a·(MET 综合2 -MET 综合1 )

[0020] Among them, T 设定Indicates the current set air supply temperature, T 基准 Indicates the reference air supply temperature, a is the temperature adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

[0021] Optionally, the current target air supply humidity of the air conditioner is calculated based on the calculated comprehensive metabolic rate index of the user, including: obtaining the relative humidity of the air in the environment after the air supply temperature of the air conditioner is adjusted as a reference air supply humidity; calculating the current target air supply humidity of the air conditioner based on the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user; and / or adjusting the air supply humidity of the air conditioner based on the calculated target air supply humidity and the upper and lower humidity limits of a preset air supply humidity range. Degree, including: when the target supply air humidity is less than or equal to the upper limit humidity of the preset supply air humidity range and greater than or equal to the lower limit humidity of the preset supply air humidity range, adjusting the supply air humidity of the air conditioner according to the target supply air humidity; when the target supply air humidity is greater than the upper limit humidity of the preset supply air humidity range, adjusting the supply air humidity of the air conditioner according to the upper limit humidity of the preset supply air humidity range; when the target supply air humidity is less than the lower limit humidity of the preset supply air temperature humidity, adjusting the supply air humidity of the air conditioner according to the lower limit humidity of the preset supply air humidity range.

[0022] Optionally, calculating the current target air supply humidity of the air conditioner according to the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user includes: calculating the current target air supply humidity of the air conditioner according to the reference air supply humidity, the currently calculated comprehensive metabolic rate of the user, and the last calculated comprehensive metabolic rate of the user using the following formula:

[0023] RH 目标 =RH 基准 -b·(MET 综合2 -MET 综合1 )

[0024] Among them, RH 目标 Indicates the current target air supply humidity, RH 基准 Indicates the reference air supply humidity, b is the humidity adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

[0025] Optionally, the up and down air outlets of the air conditioner are controlled according to the calculated comprehensive metabolic rate index of the user, including: calculating the upwind duct air volume and the downwind duct air volume of the air conditioner according to the calculated comprehensive metabolic rate index of the user; controlling the up and down air outlets of the air conditioner according to the calculated upwind duct air volume and the downwind duct air volume; and / or calculating the upwind duct air outlet angle and the downwind duct air outlet angle of the air conditioner according to the calculated comprehensive metabolic rate index of the user; controlling the up and down air outlets of the air conditioner according to the calculated upwind duct air outlet angle and the downwind duct air outlet angle; and / or calculating the up and down air outlet wind speeds of the air conditioner according to the calculated comprehensive metabolic rate index of the user; controlling the up and down air outlets of the air conditioner according to the calculated upwind outlet wind speeds.

[0026] Optionally, calculating the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user includes: calculating the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user using the following air volume distribution formula:

[0027]

[0028] Q 下风道 =Q 总风量 -Q 上风道

[0029] Among them, Q 总风量 Indicates the total air volume, Q 上风道 Indicates the air volume of the upper duct, Q 下风道 Indicates the air volume of the downwind duct, MET 综合2 Indicates the currently calculated comprehensive metabolic rate index of the user, MET 综合静息 Indicates the comprehensive metabolic rate index of the user at rest, MET 综合中间 indicating a comprehensive metabolic rate index of the user when the user is in an intermediate active state; and / or calculating an upwind air outlet angle and a downwind air outlet angle of the air conditioner based on the calculated comprehensive metabolic rate index of the user, comprising: calculating the upwind air outlet angle and the downwind air outlet angle of the air conditioner based on the calculated comprehensive metabolic rate index of the user using the following formula:

[0030] θ 上风道 =θ1·tanh(δ·(MET 综合2 -MET 综合站立 ))+σ

[0031]

[0032] Among them, θ上风道 Indicates the air outlet angle of the upper air duct, θ 下风道 Indicates the downwind outlet angle, θ1 is the maximum pitch adjustment angle, δ indicates the sensitivity of metabolic rate changes, θ2 indicates the anti-direct blowing protection angle, θ3 is the elevation angle that makes the airflow reach the preset distance, MET 综合2 Indicates the currently calculated comprehensive metabolic rate index of the user, MET 综合站立 Indicates the total metabolic rate index of the user when in a standing state, MET 综合中间 represents the user's comprehensive metabolic rate index when in an intermediate active state, σ is an angle adjustment coefficient; and / or, calculating the upper and lower air outlet wind speeds of the air conditioner based on the calculated user's comprehensive metabolic rate index, including:

[0033] When the user's comprehensive metabolic rate index is less than or equal to a preset value, the upper and lower air outlet speeds of the air conditioner are calculated according to the following formula:

[0034] v=A1+B1MET 综合

[0035] Among them, A1 is the comprehensive metabolic rate index MET 综合 Basic wind speed when it is less than or equal to the preset value; B1 represents the comprehensive metabolic rate index MET 综合 The increase in air supply speed per unit increase;

[0036] When the user's comprehensive metabolic rate index is greater than a preset value, the upper and lower air flow speeds of the air conditioner are calculated according to the following formula:

[0037] v=A2+B2(MET 综合 -C)

[0038] Among them, A2 is the comprehensive metabolic rate index MET 综合 When the basic wind speed is greater than the preset value C, B2 represents the comprehensive metabolic rate index MET 综合 The increase in air supply speed for every 1 unit increase, C is the preset value.

[0039] On the other hand, the present invention provides a control device for an air conditioner, comprising: a monitoring unit for monitoring the human physiological parameters of a user in an environment; a calculation unit for calculating a comprehensive metabolic rate index of the user in the environment based on the human physiological parameters of the user in the environment monitored by the monitoring unit; an adjustment unit for adjusting the supply air temperature and / or supply air humidity of the air conditioner based on the comprehensive metabolic rate index of the user calculated by the calculation unit; and / or a control unit for controlling the upper and lower air outlets of the air conditioner based on the comprehensive metabolic rate index of the user calculated by the calculation unit.

[0040] Optionally, the user's physiological parameters include: a change in the microcirculation blood flow velocity of the user's body surface, a change in the temperature gradient of the user's skin surface, an effective heat dissipation area of the human body, an action intensity coefficient, and at least one of the heart rate variability indicators SDNN and RMSSD; the calculation unit calculates the user's comprehensive metabolic rate index based on the human physiological parameters of the user in the environment monitored by the monitoring unit, including: calculating the metabolic rate associated with blood flow and skin temperature based on the change in the microcirculation blood flow velocity of the user's body surface, the change in the temperature gradient of the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient; calculating the metabolic rate associated with heart rate variability based on the heart rate variability indicators SDNN and RMSSD; calculating the user's comprehensive metabolic rate index based on the calculated metabolic rate associated with blood flow and skin temperature and the metabolic rate associated with heart rate variability.

[0041] Optionally, the calculation unit calculates the metabolic rate associated with blood flow and skin temperature based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient, including: calculating the metabolic rate MET associated with blood flow and skin temperature using the following formula based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient 雷达-热成像 :

[0042]

[0043] Where, ΔV 血流 is the change in blood flow velocity of the microcirculation on the surface of the body, Δt is the time interval for collecting blood flow velocity changes, ΔT 皮肤 is the temperature gradient change on the skin surface, A 体表 is the effective heat dissipation area of the human body, S 动作 is the action intensity coefficient, k1, k2, and k3 are weight coefficients; and / or, the calculation unit calculates the metabolic rate associated with heart rate variability based on the heart rate variability index SDNN and RMSSD, including: calculating the metabolic rate MET associated with heart rate variability based on the heart rate variability index SDNN and RMSSD using the following formula HRV :

[0044]

[0045] Wherein, SDNN is the standard deviation of the RR interval, RMSSD is the root mean square of the difference between adjacent RR intervals, and γ and δ are weight coefficients; and / or, the calculation unit calculates the user's comprehensive metabolic rate index based on the calculated metabolic rate associated with blood flow and skin temperature and the metabolic rate associated with heart rate variability, including: calculating the metabolic rate MET associated with blood flow and skin temperature based on the metabolic rate MET 雷达-热成像and the metabolic rate MET associated with heart rate variability HRV , use the following formula to calculate the user's comprehensive metabolic rate index MET 综合 :

[0046] MET 综合 =α·MET 雷达-热成像 +β·MET HRV +ε·S 动作

[0047] Among them, α, β and ε are weight coefficients.

[0048] Optionally, the adjustment unit adjusts the supply air temperature of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit, including: calculating the current set supply air temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user; adjusting the supply air temperature of the air conditioner according to the calculated set supply air temperature and the upper limit temperature and lower limit temperature of the preset supply air temperature range; and / or, the adjustment unit adjusts the supply air humidity of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit, including: calculating the current target supply air humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user; adjusting the supply air humidity of the air conditioner according to the calculated target supply air humidity and the upper limit humidity and lower limit humidity of the preset supply air humidity range.

[0049] Optionally, the adjustment unit calculates the current set air supply temperature of the air conditioner based on the calculated comprehensive metabolic rate index of the user, including: obtaining the air supply temperature when the air conditioner is turned on and running in cooling mode as the reference supply air temperature; calculating the current set air supply temperature of the air conditioner based on the reference supply air temperature, the currently calculated comprehensive metabolic rate index of the user, and the comprehensive metabolic rate index of the user calculated last time; and / or, the adjustment unit adjusts the air conditioner based on the calculated set air supply temperature and the upper limit temperature and lower limit temperature of the preset air supply temperature range. The supply air temperature includes: when the set supply air temperature is less than or equal to the upper limit temperature of the preset supply air temperature range and greater than or equal to the lower limit temperature of the preset supply air temperature range, the supply air temperature of the air conditioner is adjusted according to the set supply air temperature; when the set supply air temperature is greater than the upper limit temperature of the preset supply air temperature range, the supply air temperature of the air conditioner is adjusted according to the upper limit temperature of the preset supply air temperature range; when the set supply air temperature is less than the lower limit temperature of the preset supply air temperature range, the supply air temperature of the air conditioner is adjusted according to the lower limit temperature of the preset supply air temperature range.

[0050] Optionally, the adjustment unit calculates the current set air supply temperature of the air conditioner based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user, including: calculating the current set air supply temperature of the air conditioner based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user using the following formula:

[0051] T 设定 =T 基准 -a·(MET 综合2 -MET 综合1 )

[0052] Among them, T 设定 Indicates the current set air supply temperature, T 基准 Indicates the reference air supply temperature, a is the temperature adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

[0053] Optionally, the adjustment unit calculates the current target air supply humidity of the air conditioner based on the calculated comprehensive metabolic rate index of the user, including: obtaining the relative humidity of the air in the environment after the air supply temperature of the air conditioner is adjusted as the reference air supply humidity; calculating the current target air supply humidity of the air conditioner based on the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user; and / or, the adjustment unit adjusts the target air supply humidity based on the calculated target air supply humidity and the upper and lower humidity limits of a preset air supply humidity range. The air supply humidity of the air conditioner includes: when the target air supply humidity is less than or equal to the upper limit humidity of the preset air supply humidity range and greater than or equal to the lower limit humidity of the preset air supply humidity range, adjusting the air supply humidity of the air conditioner according to the target air supply humidity; when the target air supply humidity is greater than the upper limit humidity of the preset air supply humidity range, adjusting the air supply humidity of the air conditioner according to the upper limit humidity of the preset air supply humidity range; when the target air supply humidity is less than the lower limit humidity of the preset air supply temperature humidity, adjusting the air supply humidity of the air conditioner according to the lower limit humidity of the preset air supply humidity range.

[0054] Optionally, the adjustment unit calculates the current target supply air humidity of the air conditioner based on the baseline supply air humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user, including: calculating the current target supply air humidity of the air conditioner based on the baseline supply air humidity, the currently calculated comprehensive metabolic rate of the user, and the last calculated comprehensive metabolic rate of the user using the following formula:

[0055] RH 目标 =RH 基准 -b·(MET 综合2 -MET 综合1 )

[0056] Among them, RH 目标 Indicates the current target air supply humidity, RH 基准 Indicates the reference air supply humidity, b is the humidity adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

[0057] Optionally, the control unit controls the up and down air outlet of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit, including: calculating the upwind duct air volume and the downwind duct air volume of the air conditioner according to the calculated comprehensive metabolic rate index of the user; controlling the up and down air outlet of the air conditioner according to the calculated upwind duct air volume and the downwind duct air volume; and / or calculating the upwind duct air outlet angle and the downwind duct air outlet angle of the air conditioner according to the calculated comprehensive metabolic rate index of the user; controlling the up and down air outlet of the air conditioner according to the calculated upwind duct air outlet angle and the downwind duct air outlet angle; and / or calculating the up and down air outlet wind speed of the air conditioner according to the calculated comprehensive metabolic rate index of the user; controlling the up and down air outlet of the air conditioner according to the calculated upwind duct air outlet speed.

[0058] Optionally, the control unit calculates the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user, including: calculating the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user using the following air volume distribution formula:

[0059]

[0060] Q 下风道 =Q 总风量 -Q 上风道

[0061] Among them, Q 总风量 Indicates the total air volume, Q 上风道 Indicates the air volume of the upper duct, Q 下风道 Indicates the air volume of the downwind duct, MET 综合2 Indicates the currently calculated comprehensive metabolic rate index of the user, MET 综合静息 Indicates the comprehensive metabolic rate index of the user at rest, MET 综合中间 indicating a comprehensive metabolic rate index of the user when the user is in an intermediate active state; and / or, the control unit calculating an upwind air outlet angle and a downwind air outlet angle of the air conditioner based on the calculated comprehensive metabolic rate index of the user, comprising: calculating the upwind air outlet angle and the downwind air outlet angle of the air conditioner based on the calculated comprehensive metabolic rate index of the user using the following formula:

[0062] θ 上风道 =θ1·tanh(δ·(MET 综合2 -MET 综合站立 ))+σ

[0063]

[0064] Among them, θ 上风道 Indicates the air outlet angle of the upper air duct, θ 下风道 Indicates the downwind outlet angle, θ1 is the maximum pitch adjustment angle, δ indicates the sensitivity of metabolic rate changes, θ2 indicates the anti-direct blowing protection angle, θ3 is the elevation angle that makes the airflow reach the preset distance, MET 综合2 Indicates the currently calculated comprehensive metabolic rate index of the user, MET 综合站立 Indicates the total metabolic rate index of the user when in a standing state, MET 综合中间 represents a comprehensive metabolic rate index of the user when in an intermediate active state, and σ is an angle adjustment coefficient; and / or, the control unit calculates the upper and lower airflow speeds of the air conditioner based on the calculated comprehensive metabolic rate index of the user, including: when the comprehensive metabolic rate index of the user is less than or equal to a preset value, calculating the upper and lower airflow speeds of the air conditioner according to the following formula:

[0065] v=A1+B1MET 综合

[0066] Among them, A1 is the comprehensive metabolic rate index MET 综合 Basic wind speed when it is less than or equal to the preset value; B1 represents the comprehensive metabolic rate index MET 综合 The increase in the air supply speed for each unit increase; when the user's comprehensive metabolic rate index is greater than the preset value, the upper and lower air outlet speeds of the air conditioner are calculated according to the following formula:

[0067] v=A2+B2(MET 综合 -C)

[0068] Among them, A2 is the comprehensive metabolic rate index MET 综合 When the basic wind speed is greater than the preset value C, B2 represents the comprehensive metabolic rate index MET 综合 The increase in air supply speed for every 1 unit increase, C is the preset value.

[0069] Another aspect of the present invention provides a storage medium having a computer program stored thereon, wherein the program implements the steps of any of the aforementioned methods when executed by a processor.

[0070] In another aspect, the present invention provides an air conditioner, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the aforementioned methods when executing the program.

[0071] In another aspect, the present invention provides an air conditioner, comprising any one of the aforementioned control devices for the air conditioner.

[0072] In another aspect, the present invention provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of any of the aforementioned methods are implemented.

[0073] According to the technical solution of the present invention, a correlation model between human physiological parameters (such as skin temperature, heart rate, and blood flow) and human metabolic rate is established, the comprehensive metabolic rate index is calculated in real time, and coordinated control of temperature and humidity is performed. The air volume, wind speed, and wind direction of the top and bottom air-discharge air conditioner are dynamically adjusted according to the comprehensive metabolic rate index calculated in real time. The temperature and humidity can be dynamically adjusted in combination with human physiological parameters, and the top and bottom air discharge of the top and bottom air-discharge air conditioner can be dynamically controlled, providing a personalized and precise solution for dynamic thermal comfort air-conditioning control. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0075] Figure 1 1 is a method diagram of an embodiment of the air conditioner control method provided by the present invention;

[0076] Figure 2 A flowchart showing a specific embodiment of the step of calculating the user's comprehensive metabolic rate index based on the monitored human physiological parameters of the user in the environment;

[0077] Figure 3A flowchart showing a specific embodiment of the step of adjusting the air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user;

[0078] Figure 4 A flowchart showing a specific embodiment of the step of adjusting the air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user;

[0079] Figure 5 A flowchart showing a specific implementation of the steps of controlling the upper and lower airflow of the air conditioner according to the calculated comprehensive metabolic rate index of the user;

[0080] Figure 6 This is a flow chart of a specific embodiment of the air conditioner control method provided by the present invention;

[0081] Figure 7 1 is a schematic diagram of a calculation flow of a comprehensive metabolic rate index in the air-conditioning control method provided by the present invention;

[0082] Figure 8 1 is a flow chart of coordinated control of temperature and humidity of an air conditioner in the air conditioner control method provided by the present invention;

[0083] Figure 9 A schematic diagram of the dynamic up and down air outlet control process in the air conditioner control method provided by the present invention;

[0084] Figure 10 It is a structural block diagram of an embodiment of the air conditioner control device provided by the present invention. DETAILED DESCRIPTION

[0085] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0086] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0087] There are two major problems in the air conditioning control methods based on dynamic thermal comfort in related technologies: first, the control dimension is too single. Existing solutions mostly use feedback adjustment mechanisms of single influencing parameters such as temperature, wind speed, and humidity. Although some studies have introduced human metabolic rate parameters, there is a lack of coordinated analysis with key physiological indicators such as skin temperature, heart rate, and blood flow; second, the air supply strategy is static. Existing dynamic thermal comfort control methods mostly rely on the PMV-PPD model, and achieve environmental control by adjusting six basic parameters such as air temperature and air flow. Their air supply systems generally adopt a fixed partitioning mode, and fail to establish a closed-loop mechanism for dynamic prediction of wind field air supply and response to human thermal status.

[0088] The invention provides a method for controlling an air conditioner.

[0089] Figure 1 1 is a schematic diagram of an embodiment of the air conditioner control method provided by the present invention.

[0090] like Figure 1 As shown, according to one embodiment of the present invention, the control method at least includes step S110, step S120, step S130 and step S140.

[0091] Step S110 , monitoring the physiological parameters of the user in the environment.

[0092] Specifically, the physiological parameters of the user in the environment are monitored at preset time intervals. The physiological parameters of the user include: the change in the microcirculatory blood flow velocity (within the acquisition time) of the user's body surface ΔV 血流 , user skin surface temperature gradient change ΔT 皮肤 、Effective heat dissipation area of human body A 体表 , action intensity coefficient S 动作 and at least one of the heart rate variability indicators SDNN and RMSSD.

[0093] Change in blood flow velocity of the user's microcirculation ΔV 血流It can be obtained by monitoring superficial blood vessels (such as fingertips, neck, etc.) through millimeter wave radar. For example, the blood flow velocity is collected every 1 minute, and the blood flow velocity 1 minute ago and the blood flow velocity at the current moment are monitored. The difference between the blood flow velocity at the two moments is the change in the blood flow velocity of the surface microcirculation ΔV. 血流 For example, the millimeter-wave radar detected that the blood flow velocity in the hand increased from 2.0 mm / s to 3.5 mm / s (Δt=10s).

[0094] User's skin surface temperature gradient change ΔT 皮肤 Specifically, it can be the difference between the skin surface temperature collected at the previous moment and the skin surface temperature at the current moment. The skin surface temperature value can be specifically the average of the skin surface temperatures of various parts of the human body, which can be obtained by scanning key areas of the body (e.g., forehead, chest, limbs, etc.) with an infrared thermal imager and then calculating the average value.

[0095] Human body effective heat dissipation area A 体表 , can be estimated based on height and weight, for example, by the DuBois formula: 体表 =0.202×H 0.725 ×W 0.425 ; Where H is height and W is weight.

[0096] Action intensity coefficient S 动作 UWB positioning + RGB camera can be used for posture recognition, and then mapped to standard values. Different actions correspond to different standard values. For example, when sitting still, S 动作 =1.0, when walking S 动作 =2.0, when running or jumping S 动作 =3.5.

[0097] To calculate the heart rate variability indicators SDNN and RMSSD, the user's heartbeat intervals (RR intervals) are first collected via millimeter-wave radar. The SDNN indicator is the standard deviation of all normal heartbeat intervals, reflecting overall autonomic nervous system tone. The RMSSD indicator is the root mean square of the difference between adjacent RR intervals, indicating parasympathetic (vagus nerve) activity. The formulas are as follows:

[0098]

[0099] Where RRi represents the i-th RR interval, in ms; It represents the average value of all RR intervals in milliseconds; N represents the total number of RR intervals, such as the total number of RR intervals within the analysis window.

[0100] Step S120 , calculating a comprehensive metabolic rate index of the user based on the monitored physiological parameters of the user in the environment.

[0101] Figure 2 A flowchart of a specific embodiment of the step of calculating the user's comprehensive metabolic rate index based on the monitored human physiological parameters of the user in the environment is shown.

[0102] like Figure 2 As shown, step S120 includes: step S121, step S122 and step S123.

[0103] Step S121: Based on the change in blood flow velocity of the user's microcirculation, ΔV 血流 , user skin surface temperature gradient change ΔT 皮肤 、Effective heat dissipation area of human body A 体表 and action intensity coefficient S 动作 Calculate metabolic rate (MET) associated with blood flow and skin temperature using radar-thermal imaging.

[0104] Specifically, according to the change in blood flow velocity of the user's body surface microcirculation ΔV 血流 , user skin surface temperature gradient change ΔT 皮肤 、Effective heat dissipation area of human body A 体表 and action intensity coefficient S 动作 , the metabolic rate MET associated with blood flow and skin temperature is calculated using the following formula 雷达-热成像 :

[0105]

[0106] Where, ΔV 血流 is the change in blood flow velocity of the microcirculation of the body surface, in mm / s, Δt is the time interval for collecting blood flow velocity changes, in seconds; for example, if the collection is performed every 1 minute, then Δt = 60; ΔT 皮肤 is the temperature gradient change of the skin surface, unit is ℃; A 体表 is the effective heat dissipation area of the human body, in m 2 ;S 动作 is the action intensity coefficient; k1, k2, k3 are weight coefficients, which can be obtained through machine learning calibration or experimental data fitting.

[0107] Calibration of weight coefficients through machine learning mainly includes the following steps:

[0108] 1. Data collection: Collect the blood flow velocity change (ΔV 血流 ), the skin temperature gradient measured by the thermal imager (ΔT 皮肤 / A 体表 ), UWB positioning + RGB camera recognition action intensity coefficient S 动作 , real metabolic rate, user age, BMI, ambient temperature and humidity.

[0109] 2. Training model: Use the Gradient Boosted Regression Tree (GBRT) model, input the collected data, and output the predicted metabolic rate. The goal is to minimize the mean squared error between the predicted value and the true metabolic rate.

[0110] After the model is trained, the user's blood flow velocity change (ΔV 血流 ), skin temperature gradient (ΔT 皮肤 / A 体表 ), action intensity coefficient S 动作 and user age and BMI, the model automatically calculates the weight ratio through feature importance analysis and outputs dynamically adapted weight coefficients (k1, k2, k3).

[0111] For example, the millimeter-wave radar detected that the blood flow velocity in the hand increased from 2.0 mm / s to 3.5 mm / s, with an acquisition interval of Δt = 10 s, and the thermal imaging showed the temperature gradient of the torso ΔT 皮肤 =0.8℃,A 体表 =1.6m 2 , the camera recognizes that the user is in a standing state, that is, the action intensity coefficient S 动作 =1.2, and the weight coefficients k1=0.12, k2=0.8, k3=0.5 are obtained through machine learning calibration or experimental data fitting. Then the metabolic rate MET associated with blood flow and skin temperature is 雷达-热成像 for:

[0112]

[0113] Step S122: Calculate the metabolic rate MET associated with heart rate variability based on the heart rate variability index SDNN and RMSSD. HRV .

[0114] In a specific embodiment, the metabolic rate MET associated with heart rate variability is calculated using the following formula based on the heart rate variability index SDNN and RMSSD: HRV :

[0115]

[0116] Among them, SDNN is the standard deviation of RR intervals, in milliseconds, reflecting sympathetic nerve activity; RMSSD is the root mean square of the difference between adjacent RR intervals, in milliseconds, representing parasympathetic nerve regulation; γ and δ are weight coefficients, which can be calibrated by multiple regression.

[0117] For example, if SDNN = 32ms, RMSSD = 25ms, γ = 0.15, and δ = 0.08, then the METs associated with heart rate variability and metabolic rate are HRV for:

[0118]

[0119] Step S123, according to the calculated metabolic rate MET associated with blood flow and skin temperature 雷达-热成像 and the metabolic rate MET associated with heart rate variability HRV Calculate the user's comprehensive metabolic rate index MET 综合 .

[0120] In a specific embodiment, according to the metabolic rate MET associated with blood flow and skin temperature 雷达-热成像 and the metabolic rate MET associated with heart rate variability HRV , use the following formula to calculate the user's comprehensive metabolic rate index MET 综合 :

[0121] MET 综合 =α·MET 雷达-热成像 +β·MET HRV +ε·S 动作

[0122] Among them, α, β and ε are weight coefficients, which can be obtained by fitting experimental data or by optimizing dynamic weight coefficients based on random forest model. For example, α = 0.6, β = 0.3, ε = 0.1, the MET calculated above is 雷达-热成像 =1.018, MET HRV =0.08, S 动作 =1.2, then the user's comprehensive metabolic rate index MET 综合 for:

[0123] MET 综合 =0.6·1.018+0.3·0.08+0.1·1.2=0.2074368

[0124] Through the above method, the user's comprehensive metabolic rate index MET can be calculated in real time 综合 .

[0125] Step S130: adjusting the air supply temperature and / or air supply humidity of the air conditioner according to the currently calculated comprehensive metabolic rate index of the user.

[0126] Figure 3 A flowchart of a specific implementation of the step of adjusting the air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user is shown.

[0127] like Figure 3 As shown, the step of adjusting the air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user may specifically include step S131 and step S132.

[0128] Step S131, calculating the current set air supply temperature of the air conditioner based on the calculated comprehensive metabolic rate index of the user.

[0129] Specifically, the air supply temperature when the air conditioner is turned on and running in cooling mode is obtained as the reference air supply temperature; the current set air supply temperature of the air conditioner is calculated based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user. Among them, the currently calculated comprehensive metabolic rate index of the user, that is, the comprehensive metabolic rate index MET of the user calculated based on the human physiological parameters of the user in the environment currently monitored, is calculated. 综合2 , the user's comprehensive metabolic rate index calculated last time, that is, the user's comprehensive metabolic rate index MET calculated last time based on the user's human physiological parameters in the monitored environment 综合1 .

[0130] In a specific embodiment, the current set air supply temperature of the air conditioner is calculated using the following formula based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user:

[0131] T 设定 =T 基准 -a·(MET 综合2 -MET 综合1 )

[0132] Among them, T 设定 Indicates the current set air supply temperature, T 基准 Indicates the reference air supply temperature, a is the temperature adjustment coefficient, and the value range includes, for example, 0 to 5°C / MET, where MET represents the unit of the comprehensive metabolic rate index; 综合1 Indicates the comprehensive metabolic rate index of the user calculated last time (last moment), that is, the comprehensive metabolic rate index calculated by monitoring the user's human physiological parameters in the environment last time, MET 综合2 It represents the user's comprehensive metabolic rate index calculated at the current time, that is, the comprehensive metabolic rate index calculated by monitoring the user's human physiological parameters in the environment.

[0133] Step S132: adjusting the air supply temperature of the air conditioner according to the calculated set air supply temperature and the upper limit temperature and the lower limit temperature of the preset air supply temperature range.

[0134] The preset air supply temperature range can specifically be a preset thermal comfort temperature range. The thermal comfort temperature range is a dynamic temperature range. For example, different seasons correspond to different air supply temperature ranges, such as 23°C to 26°C in summer and 20°C to 24°C in winter.

[0135] Among them, when the set supply air temperature is less than or equal to the upper limit temperature of the preset supply air temperature range and greater than or equal to the lower limit temperature of the preset supply air temperature range, the supply air temperature of the air conditioner is adjusted according to the set supply air temperature; when the set supply air temperature is greater than the upper limit temperature of the preset supply air temperature range, the supply air temperature of the air conditioner is adjusted according to the upper limit temperature of the preset supply air temperature range; when the set supply air temperature is less than the lower limit temperature of the preset supply air temperature range, the supply air temperature of the air conditioner is adjusted according to the lower limit temperature of the preset supply air temperature range.

[0136] For example, the user's dynamic thermal comfort temperature range has a lower limit temperature of Tmin and an upper limit temperature of Tmax. 设定 With the size of Tmax and Tmin, when T 设定 When it is less than or equal to Tmax, it proves that the air supply temperature of the air conditioner is below the upper limit of the dynamic thermal comfort range temperature, and then we can further judge T 设定 With the size of Tmin. When T 设定 When it is greater than or equal to Tmin, it proves that the air supply temperature of the air conditioner is above the lower limit of the dynamic thermal comfort zone temperature, that is, the air supply temperature of the air conditioner is within the dynamic thermal comfort zone air supply temperature range, then it can be directly calculated based on the T at this time. 设定 Temperature adjustment of air supply temperature of air conditioner: when T 设定 When the air supply temperature is not greater than or equal to (less than) Tmin, it means that the air supply temperature of the air conditioner is less than the lower limit of the dynamic thermal comfort range. Too low a temperature will cause discomfort to the user. At this time, the air supply temperature of the air conditioner should be the lower limit of the dynamic thermal comfort range, that is, T 设定 =Tmin, then adjust the air supply temperature of the air conditioner to Tmin℃.

[0137] When T 设定 When it is not less than or equal to (greater than) Tmax, it means that the air supply temperature of the air conditioner exceeds the upper limit of the dynamic thermal comfort range. Too high a temperature will make the user uncomfortable. Therefore, the air supply temperature of the air conditioner should be the upper limit of the dynamic thermal comfort range, that is, T 设定 =Tmax, then adjust the air supply temperature of the air conditioner to Tmax℃.

[0138] Among them, if T 设定 The air supply temperature is lower than the previous moment. You can increase the compressor frequency and increase the indoor valve opening until the current air supply temperature is equal to T 设定 If T设定 The air supply temperature is higher than the previous moment. You can reduce the compressor frequency and adjust the indoor valve opening until the current air supply temperature is equal to T 设定 .

[0139] Figure 4 A flowchart of a specific implementation of the step of adjusting the air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user is shown.

[0140] like Figure 4 As shown, the step of adjusting the air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user may specifically include step S133 and step S134.

[0141] Step S133: Calculate the current target air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user.

[0142] Specifically, the relative humidity of the air in the environment after the air supply temperature of the air conditioner is adjusted is obtained as the reference air supply humidity; the current target air supply humidity of the air conditioner is calculated based on the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user. The currently calculated comprehensive metabolic rate index of the user, that is, the comprehensive metabolic rate index MET of the user calculated based on the human physiological parameters of the user in the environment currently monitored, is calculated. 综合2 , the user's comprehensive metabolic rate index calculated last time, that is, the user's comprehensive metabolic rate index MET calculated last time based on the user's human physiological parameters in the monitored environment 综合1 .

[0143] In a specific embodiment, the current target air supply humidity of the air conditioner is calculated using the following formula based on the reference air supply humidity, the currently calculated comprehensive metabolic rate of the user, and the last calculated comprehensive metabolic rate of the user:

[0144] RH 目标 =RH 基准 -b·(MET 综合2 -MET 综合1 )

[0145] Among them, RH 目标 Indicates the current target air supply humidity, RH 基准 Indicates the reference air supply humidity, b is the humidity adjustment coefficient, and the value range may include: 1~20% / MET; MET 综合1Indicates the comprehensive metabolic rate index of the user calculated last time (last moment), that is, the comprehensive metabolic rate index calculated by monitoring the user's human physiological parameters in the environment last time, MET 综合2 It represents the user's comprehensive metabolic rate index calculated at the current time, that is, the comprehensive metabolic rate index calculated by monitoring the user's human physiological parameters in the environment.

[0146] Step S134: adjusting the supply air humidity of the air conditioner according to the calculated target supply air humidity and the upper limit humidity and the lower limit humidity of the preset supply air humidity range.

[0147] The preset air supply humidity range may specifically be a preset thermal comfort humidity range. The thermal comfort humidity range is a dynamic humidity range.

[0148] Among them, when the target supply air humidity is less than or equal to the upper limit humidity of the preset supply air humidity range and greater than or equal to the lower limit humidity of the preset supply air humidity range, the supply air humidity of the air conditioner is adjusted according to the target supply air humidity; when the target supply air humidity is greater than the upper limit humidity of the preset supply air humidity range, the supply air humidity of the air conditioner is adjusted according to the upper limit humidity of the preset supply air humidity range; when the target supply air humidity is less than the lower limit humidity of the preset supply air temperature humidity, the supply air humidity of the air conditioner is adjusted according to the lower limit humidity of the preset supply air humidity range.

[0149] For example, the user's dynamic thermal comfort humidity range has a lower limit of RHmin and an upper limit of RHmax. 目标 With the size of RHmax and RHmin, when RH 目标 When it is less than or equal to RHmax, it proves that the humidity of the air supplied by the air conditioner is below the upper limit of the dynamic thermal comfort range, and then we can further judge the RH 目标 With the size of RHmin,

[0150] When RH 目标 When RHmin is greater than or equal to RHmin, it proves that the humidity of the air supply by the air conditioner is above the lower limit of the humidity in the dynamic thermal comfort range, that is, the humidity of the air supply by the air conditioner is within the range of the humidity in the dynamic thermal comfort range. 目标 Adjust the humidity of the air supplied by the air conditioner.

[0151] When RH 目标 When the humidity is not greater than or equal to (less than) RHmin, it means that the humidity of the air supplied by the air conditioner is less than the lower limit of the dynamic thermal comfort range. Too low humidity will cause the air to be dry, causing discomfort to the user. At this time, the humidity of the air supplied by the air conditioner should be the lower limit of the dynamic thermal comfort range, that is, RH 目标=RHmin, then adjust the humidity of the air supplied by the air conditioner to RHmin%.

[0152] When RH 目标 When the humidity is not less than or equal to (greater than) RHmax, it means that the humidity of the air supplied by the air conditioner exceeds the upper limit of the humidity of the air supplied in the dynamic thermal comfort range. Excessive humidity will make the user feel damp and uncomfortable. Therefore, the humidity of the air supplied by the air conditioner at this time should be the upper limit of the humidity of the dynamic thermal comfort range, that is, RH 目标 =RHmax, then adjust the humidity of the air supplied by the air conditioner to RHmax%.

[0153] The above control process can drive the coordinated control of air conditioning temperature and humidity. For example, assuming that the indoor reference air temperature is 26℃ and the humidity is 50%, the comprehensive metabolic rate index MET calculated by monitoring parameters at the last moment is 综合1 =0.15, the comprehensive metabolic rate index MET calculated by monitoring parameters at this moment 综合2 =0.35, the temperature adjustment coefficient a is 5, the humidity adjustment coefficient b is 20, then T setting = 26-5 (0.35-0.15) = 25 ° C, RH 目标 =50%-20(0.35-0.15)=46%, the air supply temperature of the air conditioner is adjusted from the base 26°C to 25°C, and the air supply humidity is adjusted from the base 50% to 46%, accelerating sweat evaporation and cooling.

[0154] Among them, the humidification module and dehumidification module of the air conditioning system are used, and the humidity sensor is used for real-time monitoring to adjust the humidity of the supply air.

[0155] Step S140 , controlling the upward and downward airflow of the air conditioner according to the calculated comprehensive metabolic rate index of the user.

[0156] Specifically, the air conditioner is a top-down air conditioner, and the top-down air flow of the air conditioner can be controlled based on the calculated comprehensive metabolic rate index of the user. More specifically, based on the calculated comprehensive metabolic rate index of the user, the air volume of the top and bottom ducts of the air conditioner can be controlled, and / or the air outlet angle of the top and bottom ducts of the air conditioner can be controlled, and / or the air velocity of the top and bottom ducts of the air conditioner can be controlled.

[0157] Figure 5 The flowchart of a specific embodiment of the steps of controlling the upper and lower air outlets of the air conditioner according to the calculated comprehensive metabolic rate index of the user is shown. Figure 5 As shown, step S140 includes step S141 and step S142, and / or includes step S143 and step S144, and / or includes step S145 and step S146.

[0158] Step S141 , calculating the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user.

[0159] Step S142: Control the upper and lower air outlets of the air conditioner according to the calculated upper duct air volume and lower duct air volume.

[0160] In a specific embodiment, the air volume of the upper duct and the air volume of the lower duct of the air conditioner are calculated based on the calculated comprehensive metabolic rate index of the user using the following air volume distribution formula:

[0161]

[0162] Q 下风道 =Q 总风量 -Q 上风道

[0163] The sum of the upper and lower duct air volumes is the total air volume, MET 综合2 Indicates the user's comprehensive metabolic rate index currently calculated, that is, the user's comprehensive metabolic rate index MET calculated based on the user's human physiological parameters in the monitored environment 综合2 , MET 综合静息 The MET index represents the comprehensive metabolic rate index of the user at rest, that is, the comprehensive metabolic rate index calculated by monitoring the user's physiological parameters when the user is at rest. 综合中间 It represents the comprehensive metabolic rate index of the user, that is, the comprehensive metabolic rate index calculated by monitoring the user's physiological parameters when the user is in the intermediate active state. The human body's active state includes, for example, a resting state, an intermediate active state, and a very active state. The intermediate active state is an intermediate state between the resting state and the very active state. Different active states correspond to different action intensity coefficients. For example, the range of human activity state from rest to very active is 1 to 3, and the intermediate active state has a value of 2, that is, S 动作 = 2. For different human activity states, the corresponding S action values in the comprehensive metabolic rate index calculation formula can be substituted.

[0164] Step S143 , calculating the upwind outlet angle and the downwind outlet angle of the air conditioner according to the calculated comprehensive metabolic rate index of the user.

[0165] Step S144: Control the upper and lower air outlets of the air conditioner according to the calculated upper air outlet angle and lower air outlet angle.

[0166] Based on the comprehensive metabolic rate index MET calculated in real time 综合Dynamically adjust the upper and lower duct outlet angles of the air conditioner. In a specific embodiment, the upper duct outlet angle θ of the air conditioner is calculated based on the calculated comprehensive metabolic rate index of the user using the following formula: 上风道 and downwind duct outlet angle θ 下风道 :

[0167] θ 上风道 =θ1·tanh(δ·(MET 综合2 -MET 综合站立 ))+σ

[0168]

[0169] Among them, θ1 is the maximum pitch adjustment angle, which can be determined based on ergonomic experiments. For example, it can be set to 15°. A 15° pitch angle can cover a person with a height of 1.8 meters from head to waist. If it exceeds 15°, it is easy for the air to blow directly to the face and cause discomfort. δ represents the sensitivity to changes in metabolic rate, which can be obtained by fitting experimental data. θ2 represents the anti-direct blowing protection angle to prevent cold wind from blowing directly on the ankles. For example, it can be set to -5°. θ3 is the elevation angle that allows the airflow to reach a preset distance. For example, when θ3 = 10°, a 10° elevation angle can allow the airflow to reach 2 meters away. For example, if θ1 = 15° and δ = 0.5, then

[0170] θ 上风道 =15°·tanh(0.5·(MET 综合2 -MET 综合站立 ))+σ

[0171]

[0172] Among them, MET 综合2 Indicates the user's comprehensive metabolic rate index currently calculated, that is, the user's comprehensive metabolic rate index MET calculated based on the user's human physiological parameters in the monitored environment 综合2 , MET 综合站立 It represents the total metabolic rate index of the user when he is in a standing state, that is, the comprehensive metabolic rate index calculated by monitoring the user's physiological parameters when the human body is in a standing state, MET 综合中间 represents the comprehensive metabolic rate index of the user when the user is in the intermediate active state, that is, the comprehensive metabolic rate index calculated by monitoring the user's human physiological parameters when the user is in the intermediate active state, and σ is the angle adjustment coefficient, and its value range is -10° to 10°.

[0173] Step S145 , calculating the upper and lower air outlet speeds of the air conditioner according to the calculated comprehensive metabolic rate index of the user.

[0174] Step S146: Control the up and down air flow of the air conditioner according to the calculated up and down air flow speeds.

[0175] Specifically, when the user's comprehensive metabolic rate index is less than or equal to a preset value, the upper and lower air outlet wind speeds of the air conditioner are calculated according to the following formula:

[0176] v=A1+B1MET 综合

[0177] Among them, A1 is the comprehensive metabolic rate index MET 综合 The basic wind speed when it is less than or equal to the preset value, unit: m / s; B1 represents the comprehensive metabolic rate index MET 综合 The increase in air velocity per unit increase, unit: m / s. These values are derived from experiments and analysis of a large amount of relevant data. For example, if A1 is 0.3m / s and B is 0.2m / s, then

[0178] v=0.3+0.2MET 综合

[0179] When the user's comprehensive metabolic rate index is greater than a preset value, the upper and lower air flow speeds of the air conditioner are calculated according to the following formula:

[0180] v=A2+B2(MET 综合 -C)

[0181] Among them, A2 (for example, 0.8) is the comprehensive metabolic rate index MET 综合 The basic wind speed is greater than the preset value C (for example, 2.5); B2 (for example, 0.5) represents the comprehensive metabolic rate index MET 综合 When the air supply speed increases by 1 unit when the air supply speed is greater than the preset value C, C is the preset value, i.e. the dividing line. These values are derived from experiments and the analysis of a large amount of relevant data. For example, if A2 is 0.8, B2 is 0.5, and C is 2.5, then

[0182] v=0.8+0.5(MET 综合 -2.5)

[0183] At this time, MET in the above two formulas 综合 According to S 动作 When taking values, each parameter is monitored and then the comprehensive metabolic rate index of the human body is obtained through calculation.

[0184] Through the above control process, dynamic regulation of the air flow of the air conditioner can be achieved based on the feedback of multimodal physiological data.

[0185] In order to clearly illustrate the technical solution of the present invention, the execution process of the air conditioner control method provided by the present invention is described below with reference to some specific embodiments.

[0186] Figure 6 FIG. 1 is a flow chart of a specific embodiment of the air conditioning control method provided by the present invention. Figure 6 As shown, first, the user's comprehensive metabolic rate index MET is calculated in real time 综合 Then, the comprehensive metabolic rate index MET is calculated in real time 综合 Drive the coordinated control of air conditioning temperature and humidity, and finally, according to the comprehensive metabolic rate index MET calculated in real time 综合 Dynamically adjust the air supply of up and down air conditioners.

[0187] Figure 7 Schematic diagram of the calculation flow of the comprehensive metabolic rate index in the air conditioning control method provided by the present invention. Figure 7 As shown, a millimeter-wave radar, infrared imager, UWB positioning + RGB camera are set in the air-conditioning system to monitor the user's microcirculatory blood flow velocity ΔV in real time. 血流 , user skin surface temperature gradient change ΔT 皮肤 、Effective heat dissipation area of human body A 体表 , action intensity coefficient S 动作 , heart rate variability index SDNN, RMSSD, and use the above monitored parameters to calculate the metabolic rate MET associated with blood flow and skin temperature 雷达-热成像 , and calculate the METs associated with heart rate variability and metabolic rate HRV , based on the calculated metabolic rate MET associated with blood flow and skin temperature 雷达-热成像 and metabolic rate (MET) associated with heart rate variability HRV Calculate the user's comprehensive metabolic rate index MET 综合 .

[0188] Figure 8 FIG. 1 is a flow chart of the coordinated control of temperature and humidity of an air conditioner in the air conditioner control method provided by the present invention. Figure 8 As shown, the air conditioner is turned on in cooling mode and the current air supply temperature is set as the reference air supply temperature T 基准 , and according to the comprehensive metabolic rate index MET 综合 Calculate the current set air supply temperature of the air conditioner, assuming that the lower limit of the user's dynamic thermal comfort temperature range is Tmin and the upper limit is Tmax, and judge T 设定 With the size of Tmax,

[0189] (1) When T 设定 When it is less than or equal to Tmax, it proves that the air supply temperature of the air conditioner is below the upper limit of the dynamic thermal comfort range temperature, and then we can further judge T 设定 With the size of Tmin:

[0190] a. When T设定 When it is greater than or equal to Tmin, it proves that the air supply temperature of the air conditioner is above the lower limit of the dynamic thermal comfort zone temperature, that is, the air supply temperature of the air conditioner is within the dynamic thermal comfort zone air supply temperature range, then it can be directly calculated based on the T at this time. 设定 Temperature adjusts the air supply temperature of the air conditioner:

[0191] b. When T 设定 When the temperature is not greater than or equal to Tmin, it means that the air supply temperature of the air conditioner is lower than the lower limit of the dynamic thermal comfort range. Too low a temperature will cause discomfort to the user. At this time, the air supply temperature of the air conditioner should be the lower limit of the dynamic thermal comfort range, that is, T 设定 =Tmin, then adjust the air supply temperature of the air conditioner to Tmin.

[0192] (2) When T 设定 When Tmax is not less than or equal to Tmax, it means that the air supply temperature of the air conditioner exceeds the upper limit of the dynamic thermal comfort range. Too high a temperature will make the user uncomfortable. Therefore, the air supply temperature of the air conditioner should be the upper limit of the dynamic thermal comfort range, that is, T 设定 =Tmax, then adjust the air supply temperature of the air conditioner to Tmax.

[0193] According to T 设定 After adjusting the air supply temperature of the air conditioner, continue to monitor the current indoor air humidity and set it to RH 基准 , and according to the comprehensive metabolic rate index MET 综合 Calculate the humidity of the air supplied by the air conditioner. Suppose the humidity of the air supplied by the air conditioner is adjusted to RH 目标 , assuming that the lower limit of the user's dynamic thermal comfort humidity range is RH min , the upper limit is RH max , judge RH 目标 With RH max The size of

[0194] (1) When RH 目标 Less than or equal to RH max When , it proves that the humidity of the air-conditioning supply air is below the upper limit of the dynamic thermal comfort range, and then we can further judge the RH 目标 With RH min The size of

[0195] a. When RH 目标 Greater than or equal to RH min When , it proves that the humidity of the air-conditioning supply air at this time is above the lower limit of the humidity in the dynamic thermal comfort range, that is, the humidity of the air-conditioning supply air at this time is within the range of the air-conditioning supply air humidity in the dynamic thermal comfort range, then the RH at this time can be directly calculated. 目标 Adjust the humidity of the air supplied by the air conditioner.

[0196] b. When RH 目标Not greater than or equal to RH min When , it proves that the humidity of the air supply by the air conditioner is less than the lower limit of the dynamic thermal comfort range. Too low humidity will cause the air to be dry, causing discomfort to the user. At this time, the humidity of the air supply by the air conditioner should be the lower limit of the dynamic thermal comfort range, that is, RH 目标 =RH min , then adjust the humidity of the air supplied by the air conditioner to RH min .

[0197] (2) When RH 目标 Not less than or equal to RH max When , it proves that the humidity of the air supply by the air conditioner exceeds the upper limit of the humidity of the air supply in the dynamic thermal comfort range. Too high humidity will make the user feel damp and uncomfortable. Therefore, the humidity of the air supply by the air conditioner at this time should be the upper limit of the humidity of the dynamic thermal comfort range, that is, RH 目标 =RH max , then adjust the humidity of the air supplied by the air conditioner to RH max .

[0198] Figure 9 This is a schematic diagram of the dynamic up and down air flow control process in the air conditioner control method provided by the present invention. Figure 9 As shown, the air conditioner is turned on in cooling mode, and the comprehensive metabolic rate index MET is calculated in real time. 综合 Dynamically adjust the air volume of the upper and lower ducts of the up and down air conditioner, and then calculate the comprehensive metabolic rate index MET in real time 综合 Dynamically adjust the upwind and downwind air outlet angles of the upwind and downwind air conditioners, and finally calculate the comprehensive metabolic rate index MET in real time. 综合 Dynamically adjust the air outlet speed of the up-and-down air-conditioning system.

[0199] Figure 10 FIG. 1 is a structural block diagram of an embodiment of the air conditioner control device provided by the present invention. Figure 10 As shown, the control device 100 includes: a monitoring unit 110 , a calculation unit 120 , and also includes an adjustment unit 130 and / or a control unit 140 .

[0200] The monitoring unit 110 is used to monitor the physiological parameters of the user in the environment.

[0201] Specifically, the monitoring unit 110 monitors the physiological parameters of the user in the environment at preset intervals. The physiological parameters of the user include: the change in the microcirculatory blood flow velocity (within the acquisition time) of the user's body surface ΔV 血流 , user skin surface temperature gradient change ΔT 皮肤 、Effective heat dissipation area of human body A 体表 , action intensity coefficient S 动作and at least one of the heart rate variability indicators SDNN and RMSSD.

[0202] Change in blood flow velocity of the user's microcirculation ΔV 血流 It can be obtained by monitoring superficial blood vessels (such as fingertips, neck, etc.) through millimeter wave radar. For example, the blood flow velocity is collected every 1 minute, and the blood flow velocity 1 minute ago and the blood flow velocity at the current moment are monitored. The difference between the blood flow velocity at the two moments is the change in the blood flow velocity of the surface microcirculation ΔV. 血流 For example, the millimeter-wave radar detected that the blood flow velocity in the hand increased from 2.0 mm / s to 3.5 mm / s (Δt=10s).

[0203] User's skin surface temperature gradient change ΔT 皮肤 Specifically, it can be the difference between the skin surface temperature collected at the previous moment and the skin surface temperature at the current moment. The skin surface temperature value can be specifically the average of the skin surface temperatures of various parts of the human body, which can be obtained by scanning key areas of the body (e.g., forehead, chest, limbs, etc.) with an infrared thermal imager and then calculating the average value.

[0204] Human body effective heat dissipation area A 体表 , can be estimated based on height and weight, for example, by the DuBois formula: 体表 =0.202×H 0.725 ×W 0.425 ; Where H is height and W is weight.

[0205] Action intensity coefficient S 动作 UWB positioning + RGB camera can be used for posture recognition, and then mapped to standard values. Different actions correspond to different standard values. For example, when sitting still, S 动作 =1.0, when walking S 动作 =2.0, when running or jumping S 动作 =3.5.

[0206] To calculate the heart rate variability indicators SDNN and RMSSD, the user's heartbeat intervals (RR intervals) are first collected via millimeter-wave radar. The SDNN indicator is the standard deviation of all normal heartbeat intervals, reflecting overall autonomic nervous system tone. The RMSSD indicator is the root mean square of the difference between adjacent RR intervals, indicating parasympathetic (vagus nerve) activity. The formulas are as follows:

[0207]

[0208] Where RRi represents the i-th RR interval, in ms; It represents the average value of all RR intervals in milliseconds; N represents the total number of RR intervals, such as the total number of RR intervals within the analysis window.

[0209] The calculation unit 120 is configured to calculate a comprehensive metabolic rate index of the user according to the physiological parameters of the user in the environment monitored by the monitoring unit.

[0210] In a specific embodiment, the calculation unit 120 calculates the user's comprehensive metabolic rate index based on the user's physiological parameters in the environment monitored by the monitoring unit 110, including: calculating the metabolic rate associated with blood flow and skin temperature based on the change in the user's microcirculatory blood flow velocity, the change in the user's skin surface temperature gradient, the body's effective heat dissipation area, and the action intensity coefficient; calculating the metabolic rate associated with heart rate variability based on the heart rate variability indicators SDNN and RMSSD; and calculating the user's comprehensive metabolic rate index based on the calculated metabolic rates associated with blood flow and skin temperature and the calculated metabolic rate associated with heart rate variability. The specific calculation process for the calculation unit 120 to calculate the user's comprehensive metabolic rate index based on the user's physiological parameters in the environment monitored by the monitoring unit 110 can be referred to the corresponding steps of calculating the user's comprehensive metabolic rate index based on the monitored physiological parameters of the user in the environment in step S120, and will not be repeated here.

[0211] The adjustment unit 130 is configured to adjust the air supply temperature and / or air supply humidity of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit.

[0212] In a specific embodiment, the adjustment unit 130 adjusts the air supply temperature of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120, including: calculating the current set air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user; adjusting the air supply temperature of the air conditioner according to the calculated set air supply temperature and the upper limit temperature and lower limit temperature of the preset air supply temperature range.

[0213] The adjustment unit 130 calculates the current set air supply temperature of the air conditioner based on the calculated comprehensive metabolic rate index of the user, including: obtaining the air supply temperature when the air conditioner is turned on and running in cooling mode as a reference air supply temperature; and calculating the current set air supply temperature of the air conditioner based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the previously calculated comprehensive metabolic rate index of the user. Specifically, the current set air supply temperature of the air conditioner is calculated based on the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the previously calculated comprehensive metabolic rate index of the user using the following formula:

[0214] T 设定 =T 基准 -a·(MET综合2 -MET 综合1 )

[0215] Among them, T 设定 Indicates the current set air supply temperature, T 基准 Indicates the reference air supply temperature, a is the temperature adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

[0216] The adjustment unit 130 adjusts the supply air temperature of the air conditioner according to the calculated set supply air temperature and the upper and lower temperature limits of the preset supply air temperature range. Specifically, it may include: when the set supply air temperature is less than or equal to the upper temperature limit of the preset supply air temperature range and greater than or equal to the lower temperature limit of the preset supply air temperature range, adjusting the supply air temperature of the air conditioner according to the set supply air temperature; when the set supply air temperature is greater than the upper temperature limit of the preset supply air temperature range, adjusting the supply air temperature of the air conditioner according to the upper temperature limit of the preset supply air temperature range; when the set supply air temperature is less than the lower temperature limit of the preset supply air temperature range, adjusting the supply air temperature of the air conditioner according to the lower temperature limit of the preset supply air temperature range.

[0217] The adjustment unit 130 adjusts the air supply temperature of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120. The details can be found in the description of steps S131 to S132 in the aforementioned step S130, which are not repeated here.

[0218] In a specific embodiment, the adjustment unit 130 adjusts the air supply humidity of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120, including: calculating the current target air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user; and adjusting the air supply humidity of the air conditioner according to the calculated target air supply humidity and the upper and lower humidity limits of a preset air supply humidity range. Wherein, the adjustment unit 130 calculates the current target air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user, which may specifically include: obtaining the relative humidity of the air in the environment after the air supply temperature of the air conditioner is adjusted as a reference air supply humidity; and calculating the current target air supply humidity of the air conditioner according to the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user. Specifically, the current target air supply humidity of the air conditioner can be calculated according to the reference supply humidity, the currently calculated comprehensive metabolic rate of the user, and the last calculated comprehensive metabolic rate of the user using the following formula:

[0219] RH 目标 =RH 基准 -b·(MET 综合2 -MET 综合1 )

[0220] Among them, RH 目标 Indicates the current target air supply humidity, RH 基准 Indicates the reference air supply humidity, b is the humidity adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

[0221] The adjustment unit 130 adjusts the supply air humidity of the air conditioner according to the calculated target supply air humidity and the upper and lower humidity limits of the preset supply air humidity interval. Specifically, it may include: when the target supply air humidity is less than or equal to the upper limit humidity of the preset supply air humidity interval and greater than or equal to the lower limit humidity of the preset supply air humidity interval, adjusting the supply air humidity of the air conditioner according to the target supply air humidity; when the target supply air humidity is greater than the upper limit humidity of the preset supply air humidity interval, adjusting the supply air humidity of the air conditioner according to the upper limit humidity of the preset supply air humidity interval; when the target supply air humidity is less than the lower limit humidity of the preset supply air temperature humidity, adjusting the supply air humidity of the air conditioner according to the lower limit humidity of the preset supply air humidity interval.

[0222] Adjusting the air supply humidity of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120 may be specifically described in steps S133 to S134 in the aforementioned step S130 and will not be repeated here.

[0223] The control unit 140 is configured to control the upward and downward airflow of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120 .

[0224] Specifically, the air conditioner is a top-down air conditioner, and the top-down air flow of the air conditioner can be controlled based on the calculated comprehensive metabolic rate index of the user. More specifically, the control unit 140 controls the air volume of the upper and lower ducts of the air conditioner, and / or controls the air angle of the upper and lower ducts of the air conditioner, and / or controls the air speed of the top-down air flow of the air conditioner based on the calculated comprehensive metabolic rate index of the user calculated by the calculation unit 120.

[0225] In a specific embodiment, the control unit 140 controls the upper and lower air outlets of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120, including: calculating the upper duct air outlet volume and the lower duct air outlet volume of the air conditioner according to the calculated comprehensive metabolic rate index of the user; and controlling the upper and lower air outlets of the air conditioner according to the calculated upper duct air outlet volume and the lower duct air outlet volume.

[0226] In a specific embodiment, the air volume of the upper duct and the air volume of the lower duct of the air conditioner are calculated based on the calculated comprehensive metabolic rate index of the user using the following air volume distribution formula:

[0227]

[0228] Q 下风道 =Q 总风量 -Q 上风道

[0229] The sum of the upper and lower duct air volumes is the total air volume, MET 综合2 Indicates the user's comprehensive metabolic rate index currently calculated, that is, the user's comprehensive metabolic rate index MET calculated based on the user's human physiological parameters in the monitored environment 综合2 , MET 综合静息 The MET index represents the comprehensive metabolic rate index of the user at rest, that is, the comprehensive metabolic rate index calculated by monitoring the user's physiological parameters when the user is at rest. 综合中间 It represents the comprehensive metabolic rate index of the user, that is, the comprehensive metabolic rate index calculated by monitoring the user's physiological parameters when the user is in the intermediate active state. The human body's active state includes, for example, a resting state, an intermediate active state, and a very active state. The intermediate active state is an intermediate state between the resting state and the very active state. Different active states correspond to different action intensity coefficients. For example, the range of human activity state from rest to very active is 1 to 3, and the intermediate active state has a value of 2, that is, S 动作 = 2. For different human activity states, the corresponding S action values in the comprehensive metabolic rate index calculation formula can be substituted.

[0230] In a specific embodiment, the control unit 140 controls the up and down air outlets of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120, including: calculating the upwind outlet angle and the downwind outlet angle of the air conditioner according to the calculated comprehensive metabolic rate index of the user; and controlling the up and down air outlets of the air conditioner according to the calculated upwind outlet angle and the downwind outlet angle.

[0231] Based on the comprehensive metabolic rate index MET calculated in real time 综合 Dynamically adjust the upper and lower duct outlet angles of the air conditioner. In a specific embodiment, the upper duct outlet angle θ of the air conditioner is calculated based on the calculated comprehensive metabolic rate index of the user using the following formula: 上风道 and downwind duct outlet angle θ 下风道 :

[0232] θ 上风道 =θ1·tanh(δ·(MET 综合2 -MET 综合站立 ))+σ

[0233]

[0234] Among them, θ1 is the maximum pitch adjustment angle, which can be determined based on ergonomic experiments. For example, it can be set to 15°. A 15° pitch angle can cover a person with a height of 1.8 meters from head to waist. If it exceeds 15°, it is easy for the air to blow directly to the face and cause discomfort. δ represents the sensitivity to changes in metabolic rate, which can be obtained by fitting experimental data. θ2 represents the anti-direct blowing protection angle to prevent cold wind from blowing directly on the ankles. For example, it can be set to -5°. θ3 is the elevation angle that allows the airflow to reach a preset distance. For example, when θ3 = 10°, a 10° elevation angle can allow the airflow to reach 2 meters away. For example, if θ1 = 15° and δ = 0.5, then

[0235] θ 上风道 =15°·tanh(0.5·(MET 综合2 -MET 综合站立 ))+σ

[0236]

[0237] Among them, MET 综合2 Indicates the user's comprehensive metabolic rate index currently calculated, that is, the user's comprehensive metabolic rate index MET calculated based on the user's human physiological parameters in the monitored environment 综合2 , MET 综合站立 It represents the total metabolic rate index of the user when he is in a standing state, that is, the comprehensive metabolic rate index calculated by monitoring the user's physiological parameters when the human body is in a standing state, MET 综合中间 represents the comprehensive metabolic rate index of the user when the user is in the intermediate active state, that is, the comprehensive metabolic rate index calculated by monitoring the user's human physiological parameters when the user is in the intermediate active state, and σ is the angle adjustment coefficient, and its value range is -10° to 10°.

[0238] In a specific embodiment, the control unit 140 controls the upper and lower air outlets of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit 120, including: calculating the upper and lower air outlet speeds of the air conditioner according to the calculated comprehensive metabolic rate index of the user; and controlling the upper and lower air outlets of the air conditioner according to the calculated upper and lower air outlet speeds.

[0239] Specifically, when the user's comprehensive metabolic rate index is less than or equal to a preset value, the upper and lower air outlet wind speeds of the air conditioner are calculated according to the following formula:

[0240] v=A1+B1MET 综合

[0241] Among them, A1 is the comprehensive metabolic rate index MET 综合 The basic wind speed when it is less than or equal to the preset value, unit: m / s; B1 represents the comprehensive metabolic rate index MET 综合 The increase in air velocity per unit increase, unit: m / s. These values are derived from experiments and analysis of a large amount of relevant data. For example, if A1 is 0.3m / s and B is 0.2m / s, then

[0242] v=0.3+0.2MET 综合

[0243] When the user's comprehensive metabolic rate index is greater than a preset value, the upper and lower air flow speeds of the air conditioner are calculated according to the following formula:

[0244] v=A2+B2(MET 综合 -C)

[0245] Among them, A2 (for example, 0.8) is the comprehensive metabolic rate index MET 综合 The basic wind speed is greater than the preset value C (for example, 2.5); B2 (for example, 0.5) represents the comprehensive metabolic rate index MET 综合 The increase in wind speed per unit increase is the amplitude; C is the preset value, i.e. the dividing line. These values are derived from experiments and the analysis of a large amount of relevant data. For example, if A2 is 0.8, B2 is 0.5, and C is 2.5, then

[0246] v=0.8+0.5(MET 综合 -2.5)

[0247] At this time, MET in the above two formulas 综合 According to S 动作 When taking values, each parameter is monitored and then the comprehensive metabolic rate index of the human body is obtained through calculation.

[0248] Through the above control process, dynamic regulation of the air flow of the air conditioner can be achieved based on the feedback of multimodal physiological data.

[0249] The present invention also provides a storage medium corresponding to the air conditioner control method, on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above methods are implemented.

[0250] The present invention also provides an air conditioner corresponding to the air conditioner control method, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the aforementioned methods when executing the computer program.

[0251] The present invention also provides an air conditioner corresponding to the control device of the air conditioner, comprising any of the aforementioned control devices of the air conditioner.

[0252] The present invention also provides a computer program product corresponding to the air conditioner control method, comprising a computer program, which implements the steps of any of the aforementioned methods when executed by a processor.

[0253] Based on this, the solution provided by the present invention, according to the technical solution of the present invention, establishes a correlation model between human physiological parameters (such as skin temperature, heart rate, blood flow) and human metabolic rate, calculates the comprehensive metabolic rate index in real time, performs coordinated control of temperature and humidity, and dynamically adjusts the air volume, wind speed and wind direction of the top and bottom air-outlet air conditioners according to the comprehensive metabolic rate index calculated in real time, which can provide personalized and precise solutions for dynamic thermal comfort air-conditioning control.

[0254] The solution provided by the present invention establishes a dynamic thermal comfort feedback mechanism that integrates multimodal physiological data, and coordinates the dynamic prediction of air supply by top-down air-conditioning, providing a precise and personalized thermal environment control solution for the intelligent air-conditioning system.

[0255] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, each functional unit may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0256] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0257] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0258] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0259] The foregoing description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.

Claims

1. A method for controlling an air conditioner, characterized in that: include: Monitoring human physiological parameters of users in the environment; Calculating a comprehensive metabolic rate index of the user based on the monitored physiological parameters of the user in the environment; adjusting the air supply temperature and / or air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user; and / or, The up and down air outlets of the air conditioner are controlled according to the calculated comprehensive metabolic rate index of the user.

2. The method according to claim 1, characterized in that The physiological parameters of the user include: a change in microcirculatory blood flow velocity on the user's body surface, a change in temperature gradient on the user's skin surface, an effective heat dissipation area of the human body, an action intensity coefficient, and at least one of the heart rate variability indicators SDNN and RMSSD; Calculate the user's comprehensive metabolic rate index based on the monitored physiological parameters of the user in the environment, including: The metabolic rate associated with blood flow and skin temperature is calculated based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the movement intensity coefficient; The metabolic rate associated with heart rate variability was calculated based on the heart rate variability indicators SDNN and RMSSD; A comprehensive metabolic rate index of the user is calculated based on the calculated metabolic rate associated with blood flow and skin temperature and the calculated metabolic rate associated with heart rate variability.

3. The method according to claim 1, characterized in that The metabolic rate associated with blood flow and skin temperature is calculated based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the movement intensity coefficient, including: Based on the change in microcirculatory blood flow velocity on the user's body surface, the change in the temperature gradient on the user's skin surface, the effective heat dissipation area of the human body, and the action intensity coefficient, the metabolic rate (MET) associated with blood flow and skin temperature is calculated using the following formula: 雷达-热成像 : Where, ΔV 血流 is the change in blood flow velocity of the microcirculation on the surface of the body, Δt is the time interval for collecting blood flow velocity changes, ΔT 皮肤 is the temperature gradient change on the skin surface, A 体表 is the effective heat dissipation area of the human body, S 动作 is the action intensity coefficient, k1, k2, k3 are weight coefficients; and / or, The metabolic rate associated with heart rate variability is calculated based on the heart rate variability indicators SDNN and RMSSD, including: The metabolic rate MET associated with heart rate variability is calculated using the following formula based on the heart rate variability index SDNN and RMSSD: HRV : Among them, SDNN is the standard deviation of RR interval, RMSSD is the root mean square of the difference between adjacent RR intervals, γ and δ are weight coefficients; and / or, Calculating a comprehensive metabolic rate index of the user based on the calculated metabolic rate associated with blood flow and skin temperature and the calculated metabolic rate associated with heart rate variability, including: The metabolic rate (MET) is related to blood flow and skin temperature. 雷达-热成像 and the metabolic rate MET associated with heart rate variability HRV , use the following formula to calculate the user's comprehensive metabolic rate index MET 综合 : OF 综合 =α·MET 雷达-热成像 +β·MET HRV +ε·S 动作 Among them, α, β and ε are weight coefficients.

4. The method according to claim 1, wherein Adjusting the air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user includes: Calculating the current set air supply temperature of the air conditioner based on the calculated comprehensive metabolic rate index of the user; Adjusting the air supply temperature of the air conditioner according to the calculated set air supply temperature and the upper limit temperature and the lower limit temperature of the preset air supply temperature range; and / or, Adjusting the air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user includes: Calculating the current target air supply humidity of the air conditioner according to the calculated comprehensive metabolic rate index of the user; The supply air humidity of the air conditioner is adjusted according to the calculated target supply air humidity and the upper limit humidity and the lower limit humidity of the preset supply air humidity range.

5. The method according to claim 4, characterized in that Calculating the current set air supply temperature of the air conditioner according to the calculated comprehensive metabolic rate index of the user, including: Obtaining the supply air temperature when the air conditioner is turned on and operated in cooling mode as a reference supply air temperature; Calculating a current set air supply temperature of the air conditioner according to the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user; and / or, Adjusting the supply air temperature of the air conditioner according to the calculated set supply air temperature and the upper limit temperature and the lower limit temperature of the preset supply air temperature range includes: When the set air supply temperature is less than or equal to the upper limit temperature of the preset air supply temperature range and greater than or equal to the lower limit temperature of the preset air supply temperature range, adjusting the air supply temperature of the air conditioner according to the set air supply temperature; When the set air supply temperature is greater than the upper limit temperature of the preset air supply temperature range, adjusting the air supply temperature of the air conditioner according to the upper limit temperature of the preset air supply temperature range; When the set air supply temperature is lower than the lower limit temperature of the preset air supply temperature range, the air supply temperature of the air conditioner is adjusted according to the lower limit temperature of the preset air supply temperature range.

6. The method according to claim 5, characterized in that Calculating a current set air supply temperature of the air conditioner according to the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user, including: The current set air supply temperature of the air conditioner is calculated according to the reference air supply temperature, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user using the following formula: T 设定 =T 基准 -a·(MET 综合2 -MET 综合1 ) Among them, T 设定 Indicates the current set air supply temperature, T 基准 Indicates the reference air supply temperature, a is the temperature adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

7. The method according to claim 4, characterized in that Calculating the current target air supply humidity of the air conditioner based on the calculated comprehensive metabolic rate index of the user includes: Obtaining the relative humidity of the air in the environment after adjusting the air supply temperature of the air conditioner as a reference air supply humidity; Calculating a current target air supply humidity of the air conditioner according to the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user; and / or, Adjusting the supply air humidity of the air conditioner according to the calculated target supply air humidity and the upper and lower humidity limits of a preset supply air humidity range includes: When the target supply air humidity is less than or equal to the upper limit humidity of the preset supply air humidity range and greater than or equal to the lower limit humidity of the preset supply air humidity range, adjusting the supply air humidity of the air conditioner according to the target supply air humidity; When the target supply air humidity is greater than the upper limit humidity of the preset supply air humidity range, adjusting the supply air humidity of the air conditioner according to the upper limit humidity of the preset supply air humidity range; When the target supply air humidity is lower than the preset lower limit humidity of the supply air temperature and humidity, the supply air humidity of the air conditioner is adjusted according to the lower limit humidity of the preset supply air humidity range.

8. The method according to claim 7, characterized in that Calculating a current target air supply humidity of the air conditioner according to the reference air supply humidity, the currently calculated comprehensive metabolic rate index of the user, and the last calculated comprehensive metabolic rate index of the user includes: The current target air supply humidity of the air conditioner is calculated using the following formula based on the reference air supply humidity, the currently calculated comprehensive metabolic rate of the user, and the last calculated comprehensive metabolic rate of the user: RH 目标 =RH 基准 -b·(MET 综合2 -BUT 综合1 ) Among them, RH 目标 Indicates the current target air supply humidity, RH 基准 Indicates the reference air supply humidity, b is the humidity adjustment coefficient, MET 综合1 Indicates the user's comprehensive metabolic rate index calculated last time, MET 综合2 Indicates the currently calculated user's comprehensive metabolic rate indicator.

9. The method according to claim 1, characterized in that Controlling the upper and lower airflow of the air conditioner according to the calculated comprehensive metabolic rate index of the user includes: Calculating the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user; Controlling the upper and lower air outlets of the air conditioner according to the calculated upper and lower air outlet volumes; and / or, Calculating an upwind outlet angle and a downwind outlet angle of the air conditioner according to the calculated comprehensive metabolic rate index of the user; Controlling the upper and lower air outlets of the air conditioner according to the calculated upper and lower air outlet angles; and / or, Calculating the upper and lower air outlet speeds of the air conditioner according to the calculated comprehensive metabolic rate index of the user; The up and down air outlets of the air conditioner are controlled according to the calculated up and down air outlet wind speeds.

10. The method according to claim 9, characterized in that Calculating the air volume of the upper duct and the air volume of the lower duct of the air conditioner according to the calculated comprehensive metabolic rate index of the user, including: According to the calculated comprehensive metabolic rate index of the user, the air volume of the upper duct and the air volume of the lower duct of the air conditioner are calculated using the following air volume distribution formula: Q 下风道 =Q 总风量 -Q 上风道 Among them, Q 总风量 Indicates the total air volume, Q 上风道 Indicates the air volume of the upper duct, Q 下风道 Indicates the air volume of the downwind duct, MET 综合2 Indicates the currently calculated comprehensive metabolic rate index of the user, MET 综合静息 Indicates the comprehensive metabolic rate index of the user at rest, MET 综合中间 a comprehensive metabolic rate indicator representing the user when the user is in an intermediate active state; and / or, Calculating the upwind duct air outlet angle and the downwind duct air outlet angle of the air conditioner according to the calculated comprehensive metabolic rate index of the user includes: According to the calculated comprehensive metabolic rate index of the user, the air outlet angle of the upper duct and the air outlet angle of the lower duct of the air conditioner are calculated using the following formula: Among them, θ 上风道 Indicates the air outlet angle of the upper air duct, θ 下风道 Indicates the downwind outlet angle, θ1 is the maximum pitch adjustment angle, δ indicates the sensitivity of metabolic rate changes, θ2 indicates the anti-direct blowing protection angle, θ3 is the elevation angle that makes the airflow reach the preset distance, MET 综合2 Indicates the currently calculated comprehensive metabolic rate index of the user, MET 综合站立 Indicates the total metabolic rate index of the user when in a standing state, MET 综合中间 represents the comprehensive metabolic rate index of the user when the user is in the intermediate active state, and σ is the angle adjustment coefficient; and / or, Calculating the upper and lower air outlet speeds of the air conditioner based on the calculated comprehensive metabolic rate index of the user includes: When the user's comprehensive metabolic rate index is less than or equal to a preset value, the upper and lower air outlet speeds of the air conditioner are calculated according to the following formula: v=A1+B1MET 综合 Among them, A1 is the comprehensive metabolic rate index MET 综合 Basic wind speed when it is less than or equal to the preset value; B1 represents the comprehensive metabolic rate index MET 综合 The increase in air supply speed per unit increase; When the user's comprehensive metabolic rate index is greater than a preset value, the upper and lower air flow speeds of the air conditioner are calculated according to the following formula: v=A2+B2(MET 综合 -C) Among them, A2 is the comprehensive metabolic rate index MET 综合 When the basic wind speed is greater than the preset value C, B2 represents the comprehensive metabolic rate index MET 综合 The increase in air supply speed for every 1 unit increase, C is the preset value.

11. A control device for an air conditioner, characterized in that: include: A monitoring unit, used to monitor the physiological parameters of the user in the environment; a calculation unit, configured to calculate a comprehensive metabolic rate index of the user based on the physiological parameters of the user in the environment monitored by the monitoring unit; an adjusting unit, configured to adjust the air supply temperature and / or air supply humidity of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculating unit; and / or, The control unit is used to control the upper and lower air outlets of the air conditioner according to the comprehensive metabolic rate index of the user calculated by the calculation unit.

12. A storage medium, characterized in that: A computer program is stored thereon, and when the program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are implemented.

13. An air conditioner, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 10 when executing the program, or comprises the control device according to claim 11.

14. A computer program product, characterized in that The invention comprises a computer program, which implements the steps of the method according to any one of claims 1 to 10 when executed by a processor.

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