Air conditioner wind following human control method, control device and air conditioner

Abstract

The application relates to the technical field of electrical appliances, and provides a wind following person control method and control device of an air conditioner and the air conditioner. The method comprises the following steps: in response to a wind following person mode, obtaining position information and sign information of a target user and a target blowing wind speed; according to the target blowing parameter, the position information and the sign information, calculating a target air outlet parameter based on a preset air flow fractal model, and adjusting the air conditioner; under the target air outlet parameter, a fractal air flow field is formed at the target user, a high-momentum core area covers at least part of a trunk area, and a low-momentum covering area covers at least part of a head area and / or at least part of a foot area. The application can actively construct a fractal air flow field with a speed gradient at the target user, so that high-momentum air flow is concentrated on the trunk area with high heat exchange demand, and low-momentum air flow covers the head or the foot which is sensitive to the wind speed, thereby avoiding local discomfort caused by traditional uniform jet flow without sacrificing the heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to a method, control device, and air conditioner for controlling the airflow of an air conditioner according to the user. Background Technology

[0002] Current air conditioning systems primarily rely on sensors such as infrared sensors, millimeter-wave radar, or cameras to identify the user's location and then use servo motors to drive air deflectors to direct airflow towards the user's area. This approach typically simplifies the user as a spatial point or center of mass, with the control logic aiming for overall tracking. The airflow is presented as a single jet with a relatively uniform wind speed distribution across its cross-section. In actual operation, when the air conditioner continuously delivers air to a stationary user, this uniform jet often simultaneously covers the user's head, torso, and feet. Since the head is more sensitive to changes in airflow speed and temperature, strong direct airflow can easily cause headaches, dry eyes, or localized chills; prolonged exposure of the feet to high-speed airflow can also cause discomfort. To alleviate these problems, some products introduce an "anti-direct-blow" mode, significantly reducing the fan speed or raising the air deflector angle to weaken the wind sensation. However, this results in insufficient effective wind speed acting on the torso area, weakening heat exchange efficiency and significantly reducing cooling or heating performance.

[0003] Furthermore, existing technologies generally lack the utilization of user vital sign information, failing to differentiate wind speed allocation based on the physiological characteristics of different parts of the body. They can only achieve rough directional tracking, making it difficult to ensure both heat exchange efficiency and overall body comfort. These shortcomings stem from the lack of fine-grained modeling and active regulation capabilities of existing control strategies for the internal structure of airflow, causing the wind-following-person function to remain at a rudimentary stage of "overall avoidance" or "overall following." Summary of the Invention

[0004] This invention provides a method, device, and air conditioner for controlling airflow according to the user's location, to address the shortcomings of existing technologies and achieve the following effects: By introducing an airflow fractal model and combining it with user location and physical characteristics information, this invention can actively construct a fractal airflow field with a velocity gradient at the target user, so that high-momentum airflow is concentrated on the torso area with high heat exchange demand, while low-momentum airflow covers the head or feet that are sensitive to wind speed, thereby effectively avoiding the local discomfort caused by traditional uniform jet without sacrificing heat exchange efficiency.

[0005] In a first aspect, the present invention provides a method for controlling the airflow of an air conditioner to follow the user's movements, comprising: In response to the air outlet control mode being set to the wind-following-person mode, the location and vital signs information of the target user in the indoor environment, as well as the preset target blowing speed, are obtained. Based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, the target airflow parameters of the air conditioner are calculated, and the air conditioner is adjusted to the target airflow parameters. Wherein, under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user, the fractal airflow field includes a high momentum core region and a low momentum coverage region, the high momentum core region covers at least part of the target user's torso area, and the low momentum coverage region covers at least part of the target user's head area and / or at least part of the foot area; the wind speed in the high momentum core region is greater than that in the low momentum coverage region.

[0006] According to some embodiments of the present invention, the vital signs information includes the height and body proportions of the target user, wherein the body proportions include the proportions of the head region, torso region and foot region of the target user; The steps of calculating the target air outlet parameters of the air conditioner based on the target blowing wind speed, the location information and vital signs information of the target user, and a preset airflow fractal model include: Based on the location information, height, and body proportions, the head region, torso region, and foot region of the target user are determined to be relative to the first distance information, second distance information, and third distance information of the air conditioner vent, respectively. Based on the target blowing speed, first distance information, second distance information, and third distance information, and using the airflow fractal model, the target air outlet parameters of the air conditioner are calculated so that the high momentum core area covers the torso area, and the low momentum coverage area covers the head area and / or the foot area.

[0007] According to some embodiments of the present invention, the target blowing speed is a user-preset arrival speed for at least one of the head area, foot area and torso area, and the target air outlet parameter includes the target air outlet speed. The step of calculating the target air outlet parameters of the air conditioner based on the target blowing wind speed, the first distance information, the second distance information, and the third distance information, and using the airflow fractal model, includes: Based on the target blowing wind speed, and using a preset airflow fractal model, the target wind speed in the high momentum core area is calculated. Based on the second distance information and the target wind speed in the high momentum core area, the target air outlet wind speed is calculated using the air conditioner's jet velocity attenuation model.

[0008] According to some embodiments of the present invention, the step of calculating the target wind speed in the high momentum core region based on a preset airflow fractal model according to the target incoming wind speed includes: In response to the target inhalation wind speed being the arrival wind speed for the torso region, the target wind speed for the high momentum core region is equal to the target inhalation wind speed. In response to the fact that the target blowing wind speed is the wind speed that arrives at the head region, a target fractal model is matched from a preset airflow fractal model library based on the height, the body proportion and the first distance information, and the target wind speed of the high momentum core region is determined based on the target fractal model. In response to the target blowing wind speed being the arrival wind speed for the foot area, a target fractal model is matched from a preset airflow fractal model library based on the height, body proportion, and third distance information, and the target wind speed of the high momentum core area is determined based on the target fractal model.

[0009] According to some embodiments of the present invention, the target air outlet parameter includes the target air guiding angle of the air guiding mechanism; The step of calculating the target air outlet parameters of the air conditioner based on the target airflow parameters, the first distance information, the second distance information, and the third distance information, and using the airflow fractal model, includes: Based on the height, body proportions, and the second distance information, determine the vertical and horizontal angle ranges that the high-momentum core region needs to cover; Based on the vertical and horizontal angle ranges and a preset airflow fractal model, the pitch and sway angles of the air guide mechanism that accurately covers the torso area by the high-momentum core region are calculated and used as the target air guide angle.

[0010] According to some embodiments of the present invention, after determining the target windward angle, the method further includes: Based on the height, body proportions, and one of the first and third distance information, and using a preset airflow fractal model, it is determined whether the head region or the foot region partially overlaps with the high-momentum core region. In response to the partial overlap between the head region and the high momentum core region, the pitch angle of the air guide mechanism is finely adjusted to shift the high momentum core region downward, so as to ensure that the head region is within the low momentum coverage area. In response to the partial overlap between the foot area and the high momentum core area, the pitch angle of the air guide mechanism is finely adjusted to shift the high momentum core area upward, ensuring that the foot area is within the low momentum coverage area.

[0011] According to some embodiments of the present invention, the wind-following-person control method further includes: When the air conditioner is in cooling mode, under the target air outlet parameters, the high momentum core region of the fractal airflow field covers at least part of the torso region of the target user, and the low momentum coverage region covers at least part of the head region of the target user. When the air conditioner is in heating mode, under the target air outlet parameters, the high momentum core region of the fractal airflow field covers at least part of the torso area of ​​the target user, and the low momentum coverage region covers at least part of the foot area of ​​the target user.

[0012] According to some embodiments of the present invention, prior to the step of acquiring the location information and vital sign information of the target user in the indoor environment, the method further includes: The system detects all personnel in the indoor environment and obtains their location, activity status, and health status. Based on a preset target user determination strategy, the target user is determined from all the personnel. The target user determination strategy includes at least one of the following: identifying the person closest to the air conditioner as the target user; identifying the person who is stationary for a period of time exceeding a preset duration as the target user; identifying the person at the location corresponding to the location that issued the interaction signal as the target user in response to receiving an interaction signal from a remote control, mobile terminal, or voice command; identifying the person as the target user when at least one person's health status is detected to be abnormal or sensitive; wherein the health status includes at least one of body temperature, heart rate, and respiratory rate, and the abnormal or sensitive status includes at least one of body temperature, heart rate, and respiratory rate exceeding a preset normal range.

[0013] Secondly, the present invention also protects an air conditioning fan-following control device, comprising: The acquisition module is used to acquire the location and vital signs information of the target user in the indoor environment, as well as the preset target blowing speed, in response to the air outlet control mode being set to the wind-following-person mode. The control module is used to calculate the target air outlet parameters of the air conditioner based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, and to adjust the air conditioner to the target air outlet parameters. Wherein, under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user, the fractal airflow field includes a high momentum core region and a low momentum coverage region, the high momentum core region covers at least part of the target user's torso area, and the low momentum coverage region covers at least part of the target user's head area and / or at least part of the foot area; the wind speed in the high momentum core region is greater than that in the low momentum coverage region.

[0014] Thirdly, the present invention also protects an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the air conditioner's wind-following-person control method as described in the first aspect of the present invention.

[0015] In summary, compared to existing wind-following control technologies, this invention significantly improves the accuracy of air delivery and human comfort. By introducing an airflow fractal model and combining it with user location and vital sign information, the air conditioner can proactively construct a fractal airflow field with a velocity gradient at the target user's location. This allows high-momentum airflow to concentrate on the torso area, where heat exchange requirements are high, while low-momentum airflow covers the head and feet areas, which are sensitive to wind speed. Without sacrificing heat exchange efficiency, this invention effectively avoids the localized discomfort caused by traditional uniform jets, achieving a personalized, zoned, and highly adaptable intelligent air delivery experience.

[0016] Furthermore, the internal wind speed zoning of this invention, based on the physical evolution law of airflow itself, can balance efficiency and comfort in the same jet without additional hardware, fundamentally solving the contradiction that traditional wind-following-human technology cannot reconcile. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is one of the flowcharts illustrating the air conditioning wind-following-person control method provided by the present invention.

[0019] Figure 2 This is the second flowchart of the air conditioning wind-following-person control method provided by the present invention.

[0020] Figure 3 This is the third flowchart of the air conditioning wind-following-person control method provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the air conditioning wind-following-person control device provided by the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the air conditioner provided by the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] The following description, with reference to the accompanying drawings, outlines the air conditioning fan control method, control device, and air conditioner according to the present invention. Before detailing the embodiments of the invention, the overall application scenario is described first. The air conditioning fan control method, control device, electronic device, and computer-readable storage medium of the present invention can be applied locally to the air conditioner, to cloud platforms in the Internet field, or to other types of cloud platforms in the Internet field, or to third-party devices. These third-party devices may include various types such as mobile phones, tablets, laptops, in-vehicle computers, and other smart terminals.

[0026] The following description uses only the airflow control method applicable to air conditioners as an example. It should be understood that the control method of this embodiment can also be applied to cloud platforms and third-party devices.

[0027] like Figures 1 to 3 As shown, the airflow control method for an air conditioner according to a first aspect embodiment of the present invention includes: Step S1: In response to the air outlet control mode being set to the wind-following-person mode, the location information and vital signs information of the target user in the indoor environment, as well as the preset target blowing speed, are obtained.

[0028] It is understandable that step S1 is used to initiate the perception and parameter acquisition process for the target user after the air conditioner's air outlet control mode is set to "Follow-the-User" mode. Here, "Follow-the-User" mode refers to the air conditioner's operating mode, which dynamically adjusts the air outlet direction and speed based on the user's real-time location and physiological characteristics indoors. Location information refers to the spatial coordinates of the target user relative to the air conditioner's outlet, which may include parameters such as horizontal azimuth, pitch angle, and distance, and can be obtained through infrared sensors, millimeter-wave radar, cameras, or UWB positioning modules. Physiological information refers to basic data reflecting the user's body shape or physiological state, such as height, body contour, or torso orientation, and can be obtained through depth cameras, ToF sensors, or user-preset profiles. The preset target airflow speed refers to the wind speed value that the user expects to apply to a specific area of ​​the body through a remote control, mobile terminal, or voice interaction; this wind speed is the wind speed reaching the body surface, not the original wind speed at the air outlet.

[0029] In this way, the above steps can provide the necessary input basis for subsequent airflow control, ensuring that the air conditioner can implement personalized air supply for specific users.

[0030] Step S2: Based on the target airflow parameters, the target user's location information and vital signs information, and a preset airflow fractal model, calculate the target airflow parameters of the air conditioner and adjust the air conditioner to the target airflow parameters.

[0031] Under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user. The fractal airflow field includes a high momentum core area and a low momentum coverage area. The high momentum core area covers at least part of the target user's torso area, and the low momentum coverage area covers at least part of the target user's head area and / or at least part of the foot area. The wind speed in the high momentum core area is greater than that in the low momentum coverage area.

[0032] After completing step S1, step S2 further calculates the target air outlet parameters to be executed by the air conditioner based on the parameters obtained in step S1 and in conjunction with a preset airflow fractal model, and adjusts the actuators such as fan speed and air guide angle accordingly. The target airflow parameter is the aforementioned target airflow velocity. The target air outlet parameters include, but are not limited to, adjustable control variables such as air outlet velocity, air volume, and air guide angle.

[0033] It's important to explain that the airflow fractal model is a mathematical model that describes the diffusion, attenuation, and non-uniform velocity distribution of an air conditioning jet in space. Its core lies in simulating the self-similar structure generated by turbulence, entrainment, and boundary effects during airflow propagation, thereby predicting the wind speed distribution patterns in different regions. In essence, the above steps translate user needs into specific equipment control commands, ensuring that the airflow output by the air conditioner forms a wind field structure that conforms to the design intent at the target user's location.

[0034] The fractal airflow field consists of a high-momentum core region and a low-momentum coverage region. The high-momentum core region refers to the area of ​​airflow with higher wind speed, concentrated kinetic energy, and strong penetrating power, used to effectively cover the user's torso for rapid heat exchange. The low-momentum coverage region refers to the outer area with lower wind speed and gentler flow, used to cover the head or feet to avoid discomfort caused by strong direct airflow. There is a clear difference in wind speed between the two, with the wind speed in the high-momentum core region being greater than that in the low-momentum coverage region, thus ensuring both cooling or heating efficiency and comfort.

[0035] In existing air conditioning systems, wind-following control technology typically uses infrared or image sensors to track the user's position and drive air deflectors to direct airflow in the user's direction. These methods often aim for overall tracking, resulting in a single jet of airflow with relatively uniform wind speed distribution across the cross-section. When the user is stationary, the strong airflow often simultaneously covers the head, torso, and feet, potentially causing head chills, dry eyes, or foot discomfort. If the overall wind speed is reduced to avoid these problems, it becomes difficult to meet the heat exchange efficiency requirements of the torso area. Therefore, existing technologies struggle to achieve an effective balance between comfort and heat exchange efficiency.

[0036] Therefore, to address the technical deficiencies in the aforementioned related technologies, this invention proposes a wind-following-person control method based on airflow fractal theory. This method utilizes the inherent fractal structure characteristics of airflow during free propagation. Through a preset airflow fractal model, it actively adjusts the air conditioning outlet parameters, enabling the airflow to form a fractal airflow field with clearly defined velocity zones at the target user. This fractal airflow field includes a high-momentum core region and a low-momentum coverage region, corresponding to the torso and head or feet, respectively. This achieves differentiated air delivery within the same airflow, precisely matching the different sensitivities of different areas of the human body to wind speed variations.

[0037] It should be explained that, based on airflow fractal theory, after leaving the air outlet, the velocity profile of the air conditioning jet exhibits a self-similar hierarchical structure during its spatial propagation due to turbulent diffusion, environmental entrainment, and boundary effects. This structure is not random disorder, but rather a recurring pattern at different scales where a high-speed core region is enveloped by a low-speed outer region—the so-called fractal characteristic. An airflow fractal model constructed based on this theory can quantitatively describe the velocity decay law along the central axis of the jet, the lateral velocity gradient distribution, and the spatial proportion between the core region and the coverage area.

[0038] Based on airflow fractal theory, this invention embeds the corresponding model into the control logic. By combining the user's location information and vital signs, the required outlet wind speed and guide angle are deduced. This ensures that when the jet propagates to the user's location, its high-momentum core area precisely covers the torso region, while the low-momentum coverage area naturally extends to the head or feet. Because the wind speed in the high-momentum core area is significantly higher than that in the low-momentum coverage area, effective heat exchange in the torso is guaranteed, while sensitive areas are prevented from being directly exposed to strong winds.

[0039] Thus, by introducing airflow fractal theory and establishing a corresponding mathematical model, this invention achieves the active shaping and precise zoning of the internal structure of the airflow. The method of this invention no longer relies on the overall deflection of a uniform jet, but instead utilizes the physical evolution laws of airflow itself to form a velocity distribution that meets ergonomic requirements at the target location. This significantly improves the comfort and personalized adaptability of the "wind-following-the-person" function without increasing hardware complexity.

[0040] Furthermore, based on the above basic working principle, the specific working process of the present invention is illustrated below: When a user switches the air conditioner to "Follow Person" mode via the user interface, the air conditioner's sensing system scans the indoor environment, identifies and locks onto the target user, and obtains their three-dimensional position coordinates relative to the air outlet, as well as physical characteristics such as height and body shape. Simultaneously, it reads the user's preset target airflow speed. Subsequently, the control system calls a pre-stored airflow fractal model and, combined with the above input parameters, calculates the actual air outlet speed and guide angle required to achieve the specified airflow speed landing at the user's torso. Based on this, the air conditioner adjusts the fan speed and airflow guide mechanism, so that the airflow naturally forms a fractal structure with a high speed at the center and a low speed at the edges when it reaches the user's location. The high-momentum core area covers the user's torso area, ensuring effective heat exchange; the low-momentum coverage area extends to the head or feet, avoiding direct, strong airflow. The entire process requires no user intervention, improving thermal comfort while maintaining a reasonable level of energy efficiency.

[0041] In summary, compared to existing wind-following control technologies, this invention significantly improves the accuracy of air delivery and human comfort. By introducing an airflow fractal model and combining it with user location and vital sign information, the air conditioner can proactively construct a fractal airflow field with a velocity gradient at the target user's location. This allows high-momentum airflow to concentrate on the torso area, where heat exchange requirements are high, while low-momentum airflow covers the head and feet areas, which are sensitive to wind speed. Without sacrificing heat exchange efficiency, this invention effectively avoids the localized discomfort caused by traditional uniform jets, achieving a personalized, zoned, and highly adaptable intelligent air delivery experience.

[0042] In its implementation, the system first acquires the target user's location and vital signs, such as spatial coordinates, height, and body orientation, to establish a precise human body model of the user in three-dimensional space. This information is used not only to determine the airflow direction but also serves as the basis for the airflow propagation path and target area division. Based on this, the controller invokes a preset airflow fractal model. This model, based on the self-similar structure of turbulent jets during free propagation, can accurately predict the velocity distribution of airflow in space under different airflow parameters. By coupling the user's vital signs with this model, the system can deduce a set of target airflow parameters, causing the airflow to naturally form a high-momentum core area and one or more low-momentum coverage areas when it reaches the user's location. The high-momentum core area is precisely guided to at least part of the torso area to ensure necessary heat exchange intensity; while the low-momentum coverage area simultaneously covers at least part of the head and / or feet area, with a significantly lower wind speed than the core area, effectively alleviating the discomfort caused by strong direct airflow. It is understood that the internal wind speed zoning of this invention is based on the physical evolution law of airflow itself. It can balance efficiency and comfort in the same jet without additional hardware, fundamentally solving the contradiction that traditional wind-following-human technology is difficult to reconcile.

[0043] like Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the vital signs information includes the target user's height and body proportions, and the body proportions include the proportions of the target user's head region, torso region, and foot region.

[0044] The steps for calculating the target air outlet parameters of the air conditioner based on the target blowing wind speed, the target user's location information, and vital signs information, using a pre-defined airflow fractal model, include: Based on location information, height, and body proportions, the first, second, and third distance information of the target user's head area, torso area, and feet area relative to the air conditioner vent are determined. Based on the target blowing speed, first distance information, second distance information, and third distance information, the target air outlet parameters of the air conditioner are calculated using an airflow fractal model, so that the high momentum core area covers the torso area, and the low momentum coverage area covers the head area and / or the foot area.

[0045] This embodiment further refines the specific composition of vital sign information and its mechanism of action in airflow control. Specifically, by incorporating the user's height and body proportions into the calculation, the system can transform the abstract user position into precise spatial distances of three key physiological regions relative to the air conditioner vent: the first distance from the head to the vent, the second distance from the torso to the vent, and the third distance from the feet to the vent. The body proportions include the percentage of the head, torso, and feet in the overall height. Because airflow velocity decreases with distance and its cross-sectional structure undergoes fractal evolution during propagation, wind speed distribution characteristics vary significantly at different distances. Therefore, by combining the target blowing wind speed with these three distance parameters, the system can use a preset airflow fractal model to deduce suitable initial airflow parameters, such as fan speed, air guide angle, and air outlet opening. This ensures that the airflow forms the required velocity gradient as it propagates to different body areas, maintaining high momentum in the torso area to ensure heat exchange efficiency, while naturally attenuating to a low momentum state in the head or foot areas to avoid strong direct wind blowing.

[0046] For example, if a user who is 170cm tall is detected sitting 2.5 meters directly in front of an air conditioner, and their body proportions show that the torso accounts for 55% of their height, the head for 13%, and the feet for 32%, the system can calculate that the center of the torso is approximately 1.8 meters from the air outlet, the head area is approximately 2.1 meters, and the feet area is approximately 1.3 meters. Based on the physical laws of airflow fractal model, such as the power-law decay of the jet core velocity with propagation distance and the correlation between the diffusion rate of the peripheral vortex area and the initial momentum, the controller will adjust the airflow intensity and angle so that the airflow maintains a high-momentum core area covering the torso area at 1.8 meters, while being in a low-speed diffusion zone, i.e., a low-momentum coverage zone, at 2.1 meters (i.e., the head) and 1.3 meters (i.e., the feet).

[0047] Therefore, this invention eliminates the need for additional zoned air supply mechanisms or complex multi-nozzle designs. It can achieve differentiated airflow coverage in different areas of the user's body with just a single jet, thereby significantly improving overall thermal comfort while ensuring cooling / heating efficiency.

[0048] like Figure 2 As shown, according to some embodiments of the present invention, the target blowing speed is a user-preset arrival speed for at least one of the head area, foot area and torso area, and the target air outlet parameter includes the target air outlet speed.

[0049] The steps for calculating the target air outlet parameters of the air conditioner based on the target blowing wind speed, first distance information, second distance information, and third distance information, using an airflow fractal model, include: Based on the target blowing wind speed, the target wind speed in the high momentum core area is calculated using a preset airflow fractal model. Based on the second distance information and the target wind speed in the high momentum core area, the target air outlet wind speed is calculated using the air conditioner jet velocity attenuation model.

[0050] It is understood that this embodiment clarifies that the target airflow velocity is not a single global setting, but rather a desired airflow velocity that the user can specify for at least one area, such as the head, feet, or torso. This setting shifts airflow control from overall comfort to localized, on-demand adjustment. Based on this, the system first uses the user-defined target airflow velocity, such as a desired velocity of 0.5 m / s for the torso area, and then, combining this with the velocity evolution law of the high-momentum core region in the airflow fractal model, deduces the target airflow velocity required near the air outlet for that high-momentum core region. Since the fractal model describes the self-similar structure and attenuation characteristics of the velocity profile during airflow propagation, it can accurately establish the mapping relationship between the arriving airflow velocity and the initial airflow velocity of the high-momentum core region.

[0051] Subsequently, the system utilizes the second distance information—the actual distance from the torso area to the air conditioner's outlet—along with the air conditioner's own jet velocity attenuation model, to further convert the target wind speed in the high-momentum core area into the target outlet wind speed required by the air conditioner's outlet. Essentially, this process involves tracing the user's perceived wind speed demand back to the device's execution end through a physical model, ensuring that the outlet parameters accurately support the formation of the expected wind speed distribution at the specified distance.

[0052] For example, if a user sets the target airflow velocity for the torso area to 0.6 m / s, and the distance between the torso and the air outlet is measured to be 2.0 meters, the jet attenuation model indicates that the airflow velocity is the target outlet velocity. Ultimately, the air conditioner delivers air at this velocity, ensuring that the airflow is maintained at exactly 0.6 m / s in the high-momentum core area at 2.0 meters, thus satisfying the heat exchange requirements while avoiding over-blowing in other areas due to blindly increasing the airflow velocity.

[0053] In this way, the above method realizes a closed-loop mapping from user's sensory needs to equipment control parameters, significantly improving the personalization and accuracy of the wind-following-person technology.

[0054] For example, based on the second distance information and the target wind speed in the high-momentum core area, and using the air conditioner's jet velocity attenuation model, the target outlet wind speed of the air conditioner is calculated. The specific implementation is as follows: Based on the target wind speed in the high-momentum core region And the horizontal distance of the torso area relative to the air conditioner vent in the second distance information. The target air outlet velocity of the air conditioner is calculated using a jet trajectory velocity model. : in, The turbulence coefficient of the air supply terminal. The equivalent diameter (m) of the air supply terminal. An empirical coefficient reflecting the wind loss characteristics of a product.

[0055] In some specific embodiments of the present invention, the step of calculating the target wind speed in the high-momentum core region based on a preset airflow fractal model, according to the target incoming wind speed, includes: If the target wind speed is the arrival wind speed for the torso region, then the target wind speed in the high momentum core region is equal to the target wind speed. In response to the fact that the target wind speed is the wind speed of arrival in the head area, a target fractal model is matched from the preset airflow fractal model library based on height, body proportion and first distance information, and the target wind speed in the high momentum core area is determined based on the target fractal model. In response to the target wind speed being the arrival wind speed targeting the foot area, a target fractal model is matched from a preset airflow fractal model library based on height, body proportions, and third distance information, and the target wind speed in the high momentum core area is determined based on the target fractal model.

[0056] In this embodiment, the system employs a differentiated strategy to determine the target wind speed in the high-momentum core area, depending on the different body regions affected by the user-defined target airflow speed. This differentiated processing fully considers the significant differences in thermal comfort requirements, spatial location, and airflow response characteristics of various parts of the human body, thereby ensuring that the air conditioning supply not only meets the user's personalized airflow requirements but also conforms to the physical laws of real airflow propagation.

[0057] Specifically, when the target airflow velocity is the user-preset arrival velocity for the torso area, the system directly uses this velocity value as the target airflow velocity for the high-momentum core area at the torso location. In conventional air supply scenarios, the torso is typically located on the main path of the air conditioning jet and within the coverage area of ​​the high-momentum core area. As the area with the largest surface area and the most concentrated metabolic heat generation, the torso is a key component for effective heat exchange. Therefore, the user's setting of the torso airflow velocity can be reasonably considered as a direct requirement for the velocity of the jet core area. This approach simplifies the calculation process, improves control response speed, and ensures a balance between thermal comfort and energy efficiency.

[0058] When the target wind speed is the arrival speed aimed at the head region, since the head is usually located at the upper edge or outer region of the jet, and is not the direct target of the high-momentum core region, the actual wind speed felt by the user mainly comes from the low-speed wake, vortex structure, or secondary flow after diffusion from the core region. Simply equating the target wind speed at the head with the wind speed in the core region would result in a significant deviation of the airflow intensity from the actual requirement, potentially leading to over-blowing or insufficient wind sensation. Therefore, the system first obtains the user's height, body proportions, and initial distance information (i.e., the distance from the head to the air conditioner vent), and then matches a target fractal model from a pre-set airflow fractal model library that best matches the current human posture and spatial geometry. It should be noted that the aforementioned airflow fractal model library is built based on a large amount of fluid simulation or experimental data, and can accurately describe the self-similar evolution characteristics of airflow velocity profiles under different conditions. Subsequently, based on the selected fractal model, the system reverse-calculates the target wind speed required near the vent in the high-momentum core region to achieve the specified wind speed at the head position.

[0059] Similarly, when the target wind speed is the arrival speed aimed at the feet area, the system cannot directly use this wind speed as the target value for the core area. The feet are typically in a lower spatial position and are easily affected by the ground boundary layer, airflow adhesion effects, and backflow, resulting in a wind speed distribution that differs significantly from the main jet core area. In this case, the system retrieves a target fractal model suitable for the low-altitude near-ground region from the airflow fractal model library based on the user's height, body proportions, and third distance information (i.e., the distance from the feet to the air outlet). This airflow fractal model library comprehensively considers factors such as ground reflection, velocity attenuation distortion, and turbulence enhancement, accurately reflecting the airflow characteristics of the feet area. Based on this model, the system calculates the target wind speed that the high-momentum core area should output at the air outlet to form the user-defined wind speed at the feet.

[0060] Thus, through the refined processing of the above three scenarios, this invention achieves precise response to the wind sensation needs of different body regions. For the torso region, an efficient and direct mapping method is adopted; for sensitive or non-primary effect regions such as the head and feet, a high-fidelity airflow fractal model is used for physical consistency correction. This mechanism not only avoids the drawbacks of the one-size-fits-all approach in traditional air supply control, but also balances heat exchange efficiency and local comfort under single jet conditions, significantly improving the intelligence level of the air conditioning system and the user experience.

[0061] like Figure 3 As shown, according to some embodiments of the present invention, the target air outlet parameters include the target air guiding angle of the air guiding mechanism; then, based on the target airflow parameters, first distance information, second distance information, and third distance information, the step of calculating the target air outlet parameters of the air conditioner based on the airflow fractal model includes: Based on height, body proportions, and second distance information, determine the vertical and horizontal angle ranges that the high-momentum core region needs to cover. Based on the vertical and horizontal angle ranges and a pre-defined airflow fractal model, the pitch and sway angles of the air guide mechanism that enable the high-momentum core area to accurately cover the torso area are calculated and used as the target air guide angles.

[0062] In this embodiment, the target air outlet parameters include not only the target air outlet velocity but also the target air guide angle of the air guide mechanism. This air guide angle is used to precisely control the direction of the air conditioning airflow, ensuring that the high-momentum core area can accurately cover the user's designated body area, thereby improving thermal comfort and air supply efficiency. To this end, the system performs a series of geometric and airflow modeling calculations based on the user's height, body proportions, and second distance information (i.e., the distance between the torso area and the air conditioning outlet) to determine the required pitch and sway angles of the air guide mechanism.

[0063] Specifically, the system first calculates the vertical position range of the user's torso area in space based on their height and body proportions, such as the vertical height range from the shoulders to the waist. Simultaneously, combining this with secondary distance information, it determines the three-dimensional spatial coordinates of the torso area relative to the air conditioner vent. Based on this, the system further calculates the vertical angular range (i.e., the angle range in the up-down direction) and the horizontal angular range (i.e., the angle range in the left-right direction) that the high-momentum core area needs to cover during propagation. These two angular ranges together define the spatial cone that the main airflow jet should point to, ensuring that the entire torso area is within the effective coverage range of the high-momentum core area, thereby avoiding localized over-blowing or insufficient airflow.

[0064] Subsequently, the system invokes a preset airflow fractal model. This model not only describes the attenuation of airflow velocity with distance but also characterizes the spatial expansion morphology and self-similar structural features of the high-momentum core region under different airflow guidance angles. Based on this model, the system performs a reverse calculation to determine, under the current distance and torso spatial position, what pitch and sway angles the airflow guidance mechanism should be set to ensure that the central axis and boundary of the high-momentum core region are precisely aligned with and completely enclose the torso area. The obtained pitch and sway angles serve as the target airflow guidance angles for the airflow guidance mechanism, used to drive the airflow guide plate or outlet actuator for precise positioning.

[0065] In this way, by using the methods described above, the air conditioner no longer relies solely on a fixed or coarse airflow pattern, but can dynamically generate the optimal airflow strategy based on the user's individual characteristics and actual location. This not only improves the targeting and comfort of the airflow, but also reduces the interference of ineffective airflow on non-target areas, thereby improving energy efficiency while ensuring a good user experience.

[0066] Furthermore, after determining the target airflow angle, the control method of the present invention further includes: Based on height, body proportions, and one of the first and third distance information, and using a preset airflow fractal model, determine whether the head region or the foot region partially overlaps with the high-momentum core region. In response to the partial overlap between the head region and the high momentum core region, the pitch angle of the air guide mechanism is finely adjusted to shift the high momentum core region downward, so as to ensure that the head region is in the low momentum coverage area. In response to the partial overlap between the foot area and the high momentum core area, the pitch angle of the air guide mechanism is finely adjusted to shift the high momentum core area upward, ensuring that the foot area is within the low momentum coverage area.

[0067] It is understood that after determining the target airflow angle, the control method of the present invention also includes fine verification and dynamic adjustment of the spatial relationship between the high-momentum core area and the sensitive areas of the human body. The above steps can prevent high-momentum airflow from directly impacting the user's head or feet, thereby preventing discomfort caused by excessively high local wind speeds, such as in scenarios where air conditioning is used for a long time.

[0068] Specifically, based on the user's known height and body proportions, the system combines at least one of the following distance information: first distance (distance from head to air outlet) or third distance information (distance from feet to air outlet). It then invokes a preset airflow fractal model to accurately reconstruct the spatial coverage of the high-momentum core region at the current airflow angle. By comparing the reconstructed airflow core region boundary with the spatial position of the head or foot area, the system can determine whether there is any overlap. It should be noted that this determination considers not only horizontal projection but also vertical height, airflow diffusion angle, and jet deflection characteristics to ensure that the evaluation results conform to the actual flow field behavior.

[0069] If the assessment indicates that the head area partially overlaps with the high-momentum core area, the system automatically performs a fine-tuning of the pitch angle. This controls the airflow guide mechanism to slightly reduce the pitch angle, causing the airflow to deflect downwards. This shifts the high-momentum core area downwards, thereby completely removing the head area from the high-momentum zone and placing it in a low-momentum coverage area with lower velocity and weaker turbulence. This adjustment effectively reduces the intensity of the wind felt towards the head and improves comfort without significantly affecting the airflow to the torso area.

[0070] Correspondingly, if the assessment results indicate that the foot area partially overlaps with the high-momentum core area, the system will fine-tune the pitch angle of the air guide mechanism in the opposite direction, appropriately increasing the pitch angle to deflect the airflow upwards. This will shift the high-momentum core area upwards, ensuring that the foot area is removed from the influence range of the high-momentum core area and falls into the low-momentum coverage area. This strategy is suitable for seated users or installation scenarios with low air outlet positions, effectively preventing feet from getting cold or experiencing a direct blast of cold air.

[0071] In summary, the aforementioned fine-tuning process, based on the high-fidelity predictive capabilities of the airflow fractal model, ensures minimal angle adjustment, satisfying the avoidance requirements of sensitive areas while maximizing effective coverage of the torso area. The entire process requires no user intervention, achieving closed-loop intelligent control from precise air delivery to comfortable wind protection, significantly improving the human-centered design and environmental adaptability of the air conditioning system.

[0072] According to some embodiments of the present invention, the wind-following-person control method further includes: When the air conditioner is in cooling mode, under the target air outlet parameters, the high momentum core area of ​​the fractal airflow field covers at least part of the target user's torso area, and the low momentum coverage area covers at least part of the target user's head area. When the air conditioner is in heating mode, under the target air outlet parameters, the high momentum core area of ​​the fractal airflow field covers at least part of the target user's torso area, and the low momentum coverage area covers at least part of the target user's feet area.

[0073] In this embodiment, the wind-following-person control method further optimizes the spatial distribution of the airflow field by combining the air conditioning operation mode, so as to take into account both thermal comfort and physiological needs.

[0074] Specifically, when the air conditioner is in cooling mode, the system adjusts the air guide mechanism and airflow speed to ensure that the high-momentum core area of ​​the fractal airflow field precisely covers at least a portion of the target user's torso, thereby achieving efficient heat dissipation and perceived cooling. Simultaneously, the system ensures that the low-momentum coverage area covers at least a portion of the user's head area. This design is based on the human body's high sensitivity to wind on the head in cold environments; strong winds blowing directly on the head can easily cause discomfort, headaches, or even chills. Therefore, even with a high overall airflow intensity, this invention can control the airflow structure to keep the head in a low-momentum area with lower speed and less disturbance, ensuring both cooling efficiency and improved comfort.

[0075] When the air conditioner is in heating mode, the control strategy is adjusted accordingly. In this mode, the system still ensures that the high-momentum core area covers at least part of the user's torso to maintain core body temperature and improve heating efficiency. However, unlike in cooling mode, the system directs the low-momentum coverage area towards at least part of the user's feet. It is understandable that in a hot environment, the feet are typically cooler and have slower blood circulation; if directly impacted by high-momentum hot air, it could cause localized overheating, dryness, or stuffiness. Simultaneously, the traditional rising characteristics of hot air tend to cause heat to accumulate in the upper body, making it difficult for the feet to receive adequate warmth. Therefore, this invention, by actively controlling the airflow structure, ensures effective heating of the torso while avoiding direct high-momentum hot air blowing on the feet. Instead, it places the feet in a gently diffusing low-momentum zone, combined with natural convection to achieve uniform heating from bottom to top, thus better conforming to the principles of human thermal comfort.

[0076] In summary, the aforementioned adaptive mechanism, based on a pre-defined airflow fractal model, can dynamically adjust the airflow angle, outlet velocity, and airflow expansion pattern according to the operating mode, ensuring that the spatial layout of high and low momentum zones always matches the user's body parts and seasonal needs. This design further achieves refined and comfortable control of airflow that adapts to changing needs.

[0077] It should be explained that the airflow fractal model proposed in this invention is not based on the rigorously defined fractal geometry in mathematics, but rather, from an engineering application perspective, it draws on the idea of ​​multi-scale, hierarchical structures to systematically divide and dynamically manage the airflow field delivered by the air conditioner. The airflow fractal model of this invention treats the outlet airflow as a composite fluid composed of a central high-momentum region and several peripheral low-momentum regions. The central region has a higher wind speed and stronger penetrating power, mainly used for effective air delivery to the main heat exchange areas such as the torso; the peripheral regions have lower wind speeds and a wider coverage area, suitable for the head or feet where wind sensitivity is high, avoiding discomfort caused by direct airflow.

[0078] This airflow structure is not static, but changes as a whole with adjustments to parameters such as the angle of the air guide vane, the fan speed, the opening of the air outlet, and the operating mode. Under different operating conditions, the airflow exhibits a spatial distribution pattern similar to a main trunk and branches, with the main trunk corresponding to the high-momentum core area and the branches representing the diffused and extended low-momentum coverage area.

[0079] To enable the practical application of this model, the air conditioner has a pre-installed airflow structure mapping library. This library was established through extensive experimental testing and fluid simulation, recording the typical spatial distribution characteristics of high and low momentum regions under various operating conditions. Once the system acquires the user's location information via sensors, it can access the airflow structure data corresponding to the current operating condition to determine the airflow level of different parts of the user's body. If the head or feet are detected as being in a high momentum region, the airflow guiding mechanism is automatically fine-tuned, causing a slight shift in the entire airflow structure. During cooling, the airflow is guided slightly downwards, and during heating, it is guided slightly upwards, ensuring that the high momentum region is always aligned with the torso, while sensitive areas are in a gentler, peripheral airflow.

[0080] Furthermore, to support these functions, the air conditioner is equipped with high-precision spatial sensing devices, such as millimeter-wave radar, infrared arrays, or depth cameras, to continuously capture the user's three-dimensional position and posture. Simultaneously, the airflow guidance system employs a multi-degree-of-freedom linkage design, allowing adjustment not only in vertical and horizontal directions but also in controlling the shielding or opening / closing of local air outlets, achieving more precise airflow guidance. An airflow fractal model plays a coordinating role in this process, integrating user position, operating status, and airflow characteristics to generate a reasonable airflow guidance strategy, rather than simply performing coordinate tracking.

[0081] Furthermore, the airflow fractal model of this invention possesses a certain degree of environmental adaptability. The system can gradually optimize its internal airflow mapping relationship over long-term operation based on users' historical operating habits (such as frequent manual adjustments of airflow direction) or user feedback. For example, in complex scenarios such as confined spaces, furniture obstructions, or multiple people sharing a room, it can automatically correct the airflow diffusion range, improving the accuracy and comfort of the actual air delivery effect.

[0082] In summary, the airflow fractal model in this invention divides airflow into functionally defined hierarchical regions and combines sensing and control technologies to achieve a shift from directional air delivery to on-demand, adaptive air delivery, thereby providing users with a more natural and comfortable indoor air environment.

[0083] According to some embodiments of the present invention, prior to the step of acquiring the location information and vital sign information of a target user in an indoor environment, the method further includes: The system detects all personnel in the indoor environment and obtains their location, activity status, and health status. Based on the preset target user determination strategy, target users are identified from all personnel. The target user determination strategy includes at least one of the following: identifying the person closest to the air conditioner as the target user; identifying the person who is stationary for a period of time exceeding a preset duration as the target user; identifying the person at the location corresponding to the location that issued the interaction signal as the target user in response to receiving an interaction signal from a remote control, mobile terminal, or voice command; identifying the person as the target user when at least one person's health status is detected to be abnormal or sensitive; wherein, the health status includes at least one of body temperature, heart rate, and respiratory rate, and the abnormal or sensitive status includes at least one of body temperature, heart rate, and respiratory rate exceeding a preset normal range.

[0084] Understandably, to achieve truly user-centric personalized air supply control, the system first executes a complete indoor occupant perception and target screening process before formally acquiring the location and vital signs information of the target users. This process uses multi-source sensor fusion technology to comprehensively detect and analyze the status of all people in the indoor environment, thereby scientifically and rationally determining the target users who should be prioritized for service.

[0085] Specifically, the system first utilizes non-contact sensing methods such as infrared thermal imaging, millimeter-wave radar, depth cameras, or Wi-Fi sensing to detect all personnel present in the room in real time, and simultaneously collects the location information, activity status, and physical health status of each person. Among them, physical health status can be obtained through wearable device data access or non-contact physiological signal inversion technology, mainly covering key indicators such as body temperature, heart rate, and respiratory rate.

[0086] Based on this, the system intelligently selects the individuals most in need of personalized air conditioning services from all present, according to a preset target user determination strategy. This determination strategy has a multi-dimensional and composable logical structure, specifically including but not limited to the following scenarios: (1) Distance-priority strategy: The person closest to the air conditioner vent is automatically identified as the target user. This strategy is suitable for scenarios where only one person is using the air conditioner or only one person in a group of people is in the effective air supply area, ensuring efficient use of airflow resources; (2) Static Priority Strategy: Individuals who remain stationary for more than a preset duration are identified as target users. This strategy is based on the assumption that stationary individuals are more likely to stay for extended periods and have higher comfort requirements, thus avoiding frequent adjustments to the air supply for those who only pass through briefly. (3) Interactive Trigger Strategy: When the system receives remote control operation, mobile terminal APP command, or voice control signal, it combines the spatial positioning information of the signal source to identify the person at the location corresponding to the location that issued the interactive signal as the target user. This method gives users initiative and improves the intuitiveness of control; (4) Health-First Strategy: When at least one person's health status is detected to be abnormal or sensitive, the system prioritizes identifying them as the target user. Here, abnormal or sensitive status refers to any indicator exceeding the preset normal physiological range, such as excessively high / low body temperature, significantly increased or decreased heart rate, or abnormal respiratory rate. The above strategy enables special air supply for special groups (such as the elderly, children, and patients), giving the air conditioner basic health assistance functions.

[0087] In summary, the above-mentioned judgment strategies can be used individually or combined logically according to the actual application scenario. Once the target user is identified, the system initiates the subsequent wind-following-the-person control process based on their location and vital signs information. This includes constructing an airflow fractal model, calculating target air outlet parameters, and dynamically adjusting the air guide angle, thereby achieving safe, comfortable, and personalized intelligent air delivery.

[0088] The following describes the air conditioning air-following-person control device provided by the present invention. The air conditioning air-following-person control device described below and the air conditioning air-following-person control method described above can be referred to in correspondence.

[0089] like Figure 4 As shown, the air conditioning fan following control device according to a second aspect embodiment of the present invention includes: The acquisition module 110 is used to acquire the location information and vital signs information of the target user in the indoor environment, as well as the preset target blowing speed, in response to the air outlet control mode being set to the wind-following-person mode. The control module 120 is used to calculate the target air outlet parameters of the air conditioner based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, and to adjust the air conditioner to the target air outlet parameters.

[0090] Under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user. The fractal airflow field includes a high momentum core area and a low momentum coverage area. The high momentum core area covers at least part of the target user's torso area, and the low momentum coverage area covers at least part of the target user's head area and / or at least part of the foot area. The wind speed in the high momentum core area is greater than that in the low momentum coverage area.

[0091] An air conditioner according to a third aspect of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the air conditioning fan-following-person control method of the first aspect of the present invention.

[0092] Figure 5 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 5As shown, the electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logic instructions in the memory 830 to execute the air conditioner's air-following-person control method, including: in response to the air outlet control mode being set to air-following-person mode, acquiring the location information and vital signs information of the target user in the indoor environment, as well as its preset target airflow speed; calculating the target air outlet parameters of the air conditioner based on the target airflow parameters, the target user's location information and vital signs information, and a preset airflow fractal model, and adjusting the air conditioner to the target air outlet parameters. Under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user. The fractal airflow field includes a high momentum core area and a low momentum coverage area. The high momentum core area covers at least part of the target user's torso area, and the low momentum coverage area covers at least part of the target user's head area and / or at least part of the foot area. The wind speed in the high momentum core area is greater than that in the low momentum coverage area.

[0093] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0094] On the other hand, the present invention also provides a computer program product, comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, which, when executed by a computer, enable the computer to execute the air conditioning wind-following-person control method provided by the above methods, including: in response to the air outlet control mode being set to wind-following-person mode, acquiring the location information and vital signs information of a target user in the indoor environment, and a preset target airflow speed; calculating the target air outlet parameters of the air conditioner based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, and adjusting the air conditioner to the target air outlet parameters. Under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user, the fractal airflow field including a high-momentum core region and a low-momentum coverage region, the high-momentum core region covering at least part of the target user's torso area, and the low-momentum coverage region covering at least part of the target user's head area and / or at least part of the foot area; the wind speed in the high-momentum core region is greater than that in the low-momentum coverage region.

[0095] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the aforementioned air conditioning air-following-person control method, comprising: in response to setting the air outlet control mode to air-following-person mode, acquiring the location information and vital signs information of a target user in the indoor environment, and a preset target airflow speed; calculating the target air outlet parameters of the air conditioner based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, and adjusting the air conditioner to the target air outlet parameters. Under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user, the fractal airflow field including a high-momentum core region and a low-momentum coverage region, the high-momentum core region covering at least part of the target user's torso area, and the low-momentum coverage region covering at least part of the target user's head area and / or at least part of the foot area; the airflow speed in the high-momentum core region is greater than that in the low-momentum coverage region.

[0096] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0097] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the airflow of an air conditioner according to the person, characterized in that, include: In response to the air outlet control mode being set to the wind-following-person mode, the location and vital signs information of the target user in the indoor environment, as well as the preset target blowing speed, are obtained. Based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, the target airflow parameters of the air conditioner are calculated, and the air conditioner is adjusted to the target airflow parameters. Wherein, under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user, the fractal airflow field includes a high momentum core region and a low momentum coverage region, the high momentum core region covers at least part of the target user's torso area, and the low momentum coverage region covers at least part of the target user's head area and / or at least part of the foot area. The wind speed in the high-momentum core region is greater than that in the low-momentum coverage region.

2. The air conditioning fan control method according to claim 1, characterized in that, The vital signs information includes the target user's height and body proportions, and the body proportions include the proportions of the target user's head area, torso area, and foot area; The steps of calculating the target air outlet parameters of the air conditioner based on the target blowing wind speed, the location information and vital signs information of the target user, and a preset airflow fractal model include: Based on the location information, height, and body proportions, the head region, torso region, and foot region of the target user are determined to be relative to the first distance information, second distance information, and third distance information of the air conditioner vent, respectively. Based on the target blowing speed, first distance information, second distance information, and third distance information, and using the airflow fractal model, the target air outlet parameters of the air conditioner are calculated so that the high momentum core area covers the torso area, and the low momentum coverage area covers the head area and / or the foot area.

3. The air conditioning fan-following control method according to claim 2, characterized in that, The target blowing speed is a user-preset arrival speed for at least one of the head area, foot area and torso area, and the target air outlet parameter includes the target air outlet speed. The step of calculating the target air outlet parameters of the air conditioner based on the target blowing wind speed, the first distance information, the second distance information, and the third distance information, and using the airflow fractal model, includes: Based on the target blowing wind speed, and using a preset airflow fractal model, the target wind speed in the high momentum core area is calculated. Based on the second distance information and the target wind speed in the high momentum core area, the target air outlet wind speed is calculated using the air conditioner's jet velocity attenuation model.

4. The air conditioning fan-following control method according to claim 3, characterized in that, The step of calculating the target wind speed in the high-momentum core region based on the target blowing wind speed and a preset airflow fractal model includes: In response to the target inhalation wind speed being the arrival wind speed for the torso region, the target wind speed for the high momentum core region is equal to the target inhalation wind speed. In response to the fact that the target blowing wind speed is the wind speed that arrives at the head region, a target fractal model is matched from a preset airflow fractal model library based on the height, the body proportion and the first distance information, and the target wind speed of the high momentum core region is determined based on the target fractal model. In response to the target blowing wind speed being the arrival wind speed for the foot area, a target fractal model is matched from a preset airflow fractal model library based on the height, body proportion, and third distance information, and the target wind speed of the high momentum core area is determined based on the target fractal model.

5. The air conditioning method for controlling airflow according to a person as described in claim 2, characterized in that, The target air outlet parameters include the target air guiding angle of the air guiding mechanism; The step of calculating the target air outlet parameters of the air conditioner based on the target airflow parameters, the first distance information, the second distance information, and the third distance information, and using the airflow fractal model, includes: Based on the height, body proportions, and the second distance information, determine the vertical and horizontal angle ranges that the high-momentum core region needs to cover; Based on the vertical and horizontal angle ranges and a preset airflow fractal model, the pitch and sway angles of the air guide mechanism that accurately covers the torso area by the high-momentum core region are calculated and used as the target air guide angle.

6. The air conditioning fan-following control method according to claim 5, characterized in that, After determining the target windward angle, the process also includes: Based on the height, body proportions, and one of the first and third distance information, and using a preset airflow fractal model, it is determined whether the head region or the foot region partially overlaps with the high-momentum core region. In response to the partial overlap between the head region and the high momentum core region, the pitch angle of the air guide mechanism is finely adjusted to shift the high momentum core region downward, so as to ensure that the head region is within the low momentum coverage area. In response to the partial overlap between the foot area and the high momentum core area, the pitch angle of the air guide mechanism is finely adjusted to shift the high momentum core area upward, ensuring that the foot area is within the low momentum coverage area.

7. The air conditioning method for controlling airflow according to any one of claims 1 to 6, characterized in that, Also includes: When the air conditioner is in cooling mode, under the target air outlet parameters, the high momentum core region of the fractal airflow field covers at least part of the torso region of the target user, and the low momentum coverage region covers at least part of the head region of the target user. When the air conditioner is in heating mode, under the target air outlet parameters, the high momentum core region of the fractal airflow field covers at least part of the torso area of ​​the target user, and the low momentum coverage region covers at least part of the foot area of ​​the target user.

8. The air conditioning method for controlling airflow according to any one of claims 1 to 6, characterized in that, Before the step of acquiring the location information and vital signs information of the target user in the indoor environment, the method further includes: The system detects all personnel in the indoor environment and obtains their location, activity status, and health status. Based on a preset target user determination strategy, the target user is determined from all the personnel. The target user determination strategy includes at least one of the following: identifying the person closest to the air conditioner as the target user; identifying the person who is stationary for a period of time exceeding a preset duration as the target user; identifying the person at the location corresponding to the location that issued the interaction signal as the target user in response to receiving an interaction signal from a remote control, mobile terminal, or voice command; identifying the person as the target user when at least one person's health status is detected to be abnormal or sensitive; wherein the health status includes at least one of body temperature, heart rate, and respiratory rate, and the abnormal or sensitive status includes at least one of body temperature, heart rate, and respiratory rate exceeding a preset normal range.

9. An air conditioning fan-following control device, characterized in that, include: The acquisition module is used to acquire the location and vital signs information of the target user in the indoor environment, as well as the preset target blowing speed, in response to the air outlet control mode being set to the wind-following-person mode. The control module is used to calculate the target air outlet parameters of the air conditioner based on the target airflow parameters, the location information and vital signs information of the target user, and a preset airflow fractal model, and to adjust the air conditioner to the target air outlet parameters. Wherein, under the target air outlet parameters, the air outlet airflow of the air conditioner forms a fractal airflow field at the target user, the fractal airflow field includes a high momentum core region and a low momentum coverage region, the high momentum core region covers at least part of the target user's torso area, and the low momentum coverage region covers at least part of the target user's head area and / or at least part of the foot area. The wind speed in the high-momentum core region is greater than that in the low-momentum coverage region.

10. An air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the air conditioning wind-following-person control method as described in any one of claims 1 to 8.

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