Human posture-based air conditioner control method and device, air conditioner and storage medium

Abstract

The application provides an air conditioner control method and device based on human posture, an air conditioner and a storage medium, and relates to the technical field of air conditioner control. The scheme comprises the following steps: determining air conditioner control parameters matched with the human posture by detecting the human posture of a target area in real time, the air conditioner control parameters comprising a deflector position, a fan gear, a target exhaust temperature and a compressor output frequency; and then adjusting the deflector position, the fan gear, the target exhaust temperature and the compressor output frequency based on the air conditioner control parameters, so that the working state of the air conditioner is matched with the human posture. Thus, the operation state of the air conditioner can be dynamically adjusted based on the human posture, the operation state of the air conditioner is accurately matched with the actual behavior of the user, and the user experience is improved. Furthermore, when analyzing the human posture, the radar sensor is used to replace the existing image acquisition equipment, the amount of data required to be processed by the scheme is small, the performance requirement of the processor is low, and the design cost of the air conditioner can be significantly reduced.

Description

Technical Field

[0001] This invention relates to the field of air conditioning control technology, specifically to an air conditioning control method, device, air conditioner, and storage medium based on human posture. Background Technology

[0002] Air conditioning has become an indispensable part of people's daily lives and work. With the accelerated development of smart air conditioning, features such as human body sensing and anti-direct-blow functions have gradually become widespread. However, traditional smart air conditioners still have limitations—while they can detect the presence and location of a person and adjust accordingly to avoid direct cold air blowing on the user, the overall operation of the air conditioner still requires active user control. In this mode, the air conditioner's operating status is often difficult to precisely match with the user's actual behavior, resulting in a poor user experience. For example, if the air conditioner continues to cool the user after they have fallen asleep, it can easily cause discomfort or even illness.

[0003] Although some smart air conditioners can adjust the set temperature, operating mode, and fan speed based on user behavior patterns, this approach usually requires image acquisition equipment and high-speed processors to analyze user behavior, which significantly increases the production cost of air conditioners. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide an air conditioning control method, device, air conditioner, and storage medium based on human posture, so as to achieve accurate matching between air conditioning operating status and user behavior and improve user experience.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] An air conditioning control method based on human posture includes:

[0007] The radar sensor is used to obtain the height of the human body in the target area, the horizontal distance between the human body and the air conditioner, and the intensity of the human body's micro-movements.

[0008] The height of the human target is normalized to obtain a height normalization value;

[0009] The horizontal distance is normalized to obtain a distance normalization correction value;

[0010] The height normalization value, distance normalization correction value, and human body micro-motion intensity are weighted by weighting coefficients and then summed to obtain a comprehensive evaluation index.

[0011] Human posture is determined based on the magnitude of the comprehensive evaluation index;

[0012] Obtain air conditioning control parameters that match the human body posture, including air guide plate position, fan speed, target exhaust temperature and compressor output frequency;

[0013] Adjust the air conditioner's operating status based on the aforementioned air conditioner control parameters.

[0014] Optionally, in the above-disclosed air conditioning control method based on human posture, the comprehensive evaluation index is obtained by summing the height normalization value, distance normalization correction value, and human micro-motion intensity after weighting by weighted coefficients, including:

[0015] Based on formula Calculate the comprehensive evaluation index ;

[0016] Among them, the , and These are the weighting coefficients, + + =1;

[0017] The The value is a normalized height, where H is the target height of the human body. The maximum target height for the human body;

[0018] The The distance normalization correction value, the The horizontal distance, the The maximum horizontal distance;

[0019] M represents the intensity of human body micro-movement.

[0020] Optionally, in the above-disclosed air conditioning control method based on human posture, determining the human posture based on the magnitude of the comprehensive evaluation index includes:

[0021] When the comprehensive evaluation index is within the first preset range, the human body posture is determined to be a lying posture.

[0022] When the comprehensive evaluation index is within the second preset range, the human posture is determined to be a sitting posture.

[0023] When the comprehensive evaluation index is within the third preset range, the human posture is determined to be a standing posture.

[0024] Wherein, the maximum value of the first preset range is less than the minimum value of the second preset range, and the maximum value of the second preset range is less than the minimum value of the third preset range.

[0025] Optionally, in the above-disclosed air conditioning control method based on human posture, after calculating the comprehensive evaluation index and before determining the human posture based on the magnitude of the comprehensive evaluation index, the method further includes:

[0026] The confidence level of the comprehensive evaluation judgment index is calculated based on the ratio of the fluctuation variance to the maximum variance. When the confidence level is greater than the target confidence level, the following steps are continued: determining the human posture based on the magnitude of the comprehensive evaluation judgment index, until the air conditioning operation status is adjusted based on the air conditioning control parameters.

[0027] Optionally, in the above-disclosed air conditioning control method based on human posture, obtaining air conditioning control parameters that match the human posture includes:

[0028] When the human body is in a lying position, the target exhaust temperature of the compressor is reduced to the first preset temperature, the air guide plate is raised to the maximum anti-direct blowing angle, the fan speed is switched to the lowest speed, and the compressor output frequency is calculated based on the correction value of the deviation between the current compressor frequency and the exhaust temperature.

[0029] When the human body is in a sitting position, the air guide plate is controlled to sweep left and right, and the fan speed is switched to the first target speed. The first target speed is higher than the lowest speed. The compressor output frequency is calculated based on the correction value of the deviation between the current compressor frequency and the exhaust temperature.

[0030] When the human body is in a standing position, the target exhaust temperature of the compressor is increased by a second preset temperature, the air guide plate is controlled to be at the default angle, and the fan speed is switched to the second target speed, which is higher than the first target speed. The compressor output frequency is calculated based on the current compressor frequency, the correction value of the exhaust temperature deviation, and the target compensation frequency.

[0031] Optionally, in the above-disclosed air conditioning control method based on human posture, when the target area includes at least two users and at least two human postures are detected, obtaining air conditioning control parameters matching the human postures includes:

[0032] Identify the priority of each detected human pose and select the human pose with the highest priority as the target human pose.

[0033] Obtain air conditioning control parameters that match the posture of the target human body.

[0034] Optionally, in the above-disclosed air conditioning control method based on human posture,

[0035] The priority of lying down posture is lower than that of sitting posture, which in turn is lower than that of standing posture.

[0036] An air conditioning control device based on human posture, comprising:

[0037] The attitude detection unit is used to acquire the height of the human target, the horizontal distance between the human body and the air conditioner, and the intensity of human body micro-motion in the target area through a radar sensor; normalize the height of the human target to obtain a height normalized value; normalize the horizontal distance to obtain a distance normalized correction value; sum the height normalized value, the distance normalized correction value, and the intensity of human body micro-motion after weighting by weighting coefficients to obtain a comprehensive evaluation index; and determine the human posture based on the magnitude of the comprehensive evaluation index.

[0038] The control parameter acquisition unit is used to acquire air conditioning control parameters that match the human body posture. The air conditioning control parameters include the position of the air guide plate, the fan speed, the target exhaust temperature, and the compressor output frequency.

[0039] The control unit is used to adjust the operating status of the air conditioner based on the air conditioner control parameters.

[0040] An air conditioner includes at least one processing device and a storage device connected to the processing device, wherein:

[0041] The storage device is used to store computer programs;

[0042] The processing device is used to execute the computer program so that the air conditioner can implement any of the above-mentioned human posture-based air conditioning control methods.

[0043] A computer storage medium carrying one or more computer programs, which, when executed by an air conditioner, enable the air conditioner to implement any of the aforementioned human posture-based air conditioning control methods.

[0044] Based on the above technical solution, the solution provided in this embodiment of the invention analyzes the human posture in the target area in real time using radar sensor detection results to determine air conditioning control parameters that match the human posture. These air conditioning control parameters include the position of the air guide vane, the fan speed, the target exhaust temperature, and the compressor output frequency. Then, based on these control parameters, the position of the air guide vane, the fan speed, the target exhaust temperature, and the compressor output frequency are adjusted to match the air conditioner's operating state with the human posture. This allows for dynamic adjustment of the air conditioner's operating state based on human posture, ensuring a precise match between the air conditioner's operating state and the user's actual behavior, thus improving the user experience. Furthermore, this solution uses radar sensors instead of existing image acquisition equipment when analyzing human posture. The solution requires less data processing and has lower processor performance requirements, significantly reducing the design cost of the air conditioner. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present 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 only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0046] Figure 1 A schematic diagram illustrating an application scenario of the air conditioning control method based on human posture provided in this application embodiment;

[0047] Figure 2 A flowchart illustrating the air conditioning control method based on human posture provided in this application embodiment;

[0048] Figure 3 This is a schematic diagram of the structure of an air conditioning control device based on human posture provided in an embodiment of this application. Detailed Implementation

[0049] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0051] According to one aspect of the embodiments of this application, an air conditioning control method based on human posture is provided. This air conditioning control method based on human posture is widely used in intelligent air conditioning. Optionally, in this embodiment, the above-mentioned air conditioning control method based on human posture can be applied to, for example... Figure 1The hardware environment shown consists of terminal device 102 and server 104. For example... Figure 1 As shown, server 104 is connected to terminal device 102 via a network and can be used to provide services (such as application services) to the terminal or clients installed on the terminal. A database can be set up on the server or independently of the server to provide data storage services for server 104. Cloud computing and / or edge computing services can be configured on the server or independently of the server to provide data processing services for server 104.

[0052] The aforementioned network communication architecture includes, but is not limited to, wired transmission and wireless connection links. The wired network can encompass wide area networks (WANs), metropolitan area networks (MANs), and local area networks (LANs), while the wireless network supports communication standards such as Wi-Fi, Bluetooth, and 5G. It is adaptable to the digital technology transmission needs of the Internet of Things (IoT), the Internet of Things (IoT), and the Internet of Things (IoT-linked networks), ensuring stable digital information interaction and enabling devices to make autonomous, accurate, precise, and accurate adjustments. It also supports personalized and customized intelligent capabilities such as voice interaction, remote control, and self-control. Terminal device 102 is a smart air conditioner.

[0053] The human posture-based air conditioning control method disclosed in this embodiment can be turned on or off by the user. Specifically, the user can turn on or off the human posture-based air conditioning control method by remote control, voice command or physical button on the air conditioner control panel.

[0054] See Figure 2 The air conditioning control method based on human posture disclosed in this application may include:

[0055] Step S101: Obtain the height of the human target, the horizontal distance between the human body and the air conditioner, and the intensity of the human body's micro-movements in the target area using radar sensors.

[0056] In this step, the target area is the air conditioning cooling / heating area. Existing solutions for human posture recognition can use image recognition technology and artificial intelligence models to identify the human posture in the target area. However, this method requires corresponding image acquisition equipment for the air conditioning unit and demands high processor speed, undoubtedly increasing the design cost of the air conditioner. To reduce costs, this application provides a human posture recognition solution based on a radar sensor. In this solution, a radar sensor, preferably a millimeter-wave radar sensor, is installed on the air outlet side of the air conditioner. This millimeter-wave radar sensor is fixedly installed inside the air guide plate of the air outlet, ensuring that the detection beam can completely cover the indoor target area in front of the air conditioner, i.e., the main area of ​​daily human activity. It also avoids interference from the airflow from the air conditioner on the radar signal propagation and prevents dust, heat exchangers, and other components on the air inlet side from obstructing the detection field of view, ensuring detection stability. This millimeter-wave radar sensor integrates a radar transmitting antenna, a radar receiving antenna, a signal processing unit, and a communication interface. The signal processing unit uses a dedicated radar chip, and the communication interface is used to establish bidirectional communication with the air conditioner's main control board to achieve signal transmission and command interaction.

[0057] In practice, the signal processing unit of the millimeter-wave radar sensor first issues a control command to control the transmitting antenna to periodically transmit millimeter-wave broadcast signals. These broadcast signals are continuous waves with linearly varying frequencies. When the broadcast signal encounters a human target within the target area during propagation, it will be reflected and scattered, forming a reflected echo signal. This echo signal carries information such as the position and motion state of the human target. Subsequently, the radar receiving antenna captures the feedback echo signal and transmits it to the signal processing unit. The signal processing unit performs preliminary filtering, amplification, and analog-to-digital conversion on the received echo signal to remove irrelevant signals such as environmental noise and airflow interference.

[0058] For human target height identification, this embodiment employs a vertically arranged dual-receiving antenna array for the millimeter-wave radar sensor, utilizing a direction-of-arrival (DOA) estimation algorithm to calculate the height. The signal processing unit analyzes the phase and amplitude differences of the echo signals received by the two antennas, and, combined with preset antenna spacing parameters, calculates the vertical pitch angle θ of the human target relative to the radar sensor. The signal processing unit then combines this with the subsequently calculated horizontal distance d between the human body and the air conditioner, and uses the geometric formula H = H1 + d × tanθ to calculate the actual height H of the human target, providing a height dimension basis for subsequent intelligent control of the air conditioner.

[0059] The horizontal distance recognition between a human body and an air conditioner is based on the distance detection principle of millimeter-wave radar. The transmitting antenna of the millimeter-wave radar sensor transmits a continuous wave with a linearly varying frequency. The signal processing unit mixes the transmitted signal with the echo signal captured by the receiving antenna to generate a difference frequency signal. The frequency of this difference frequency signal is proportional to the horizontal distance between the human target and the radar sensor. The signal processing unit performs FFT spectrum analysis on the mixed difference frequency signal, extracts the difference frequency f corresponding to the peak frequency, and substitutes it into the distance formula (R = c·f / (2·S), where c is the speed of light, f is the frequency of the difference frequency signal, and S is the frequency modulation slope of the transmitted signal) to calculate the horizontal straight-line distance d between the human body and the air conditioner.

[0060] The identification of the intensity of human micro-movements utilizes the micro-Doppler frequency shift effect generated by these micro-movements (such as breathing and slight limb swaying). Breathing movements and slight limb movements in a static state cause a slight frequency shift in the radar echo signal, known as a micro-Doppler frequency shift. This shifted signal can be captured and analyzed by the signal processing unit. The signal processing unit performs Doppler analysis on the pre-processed echo signal, separating the frequency shift component caused by human micro-movements. Then, it integrates the Doppler spectral energy corresponding to this shift component to obtain the micro-movement energy value, which serves as a quantitative indicator of the intensity of human micro-movements. A higher micro-movement energy value indicates a higher intensity of human micro-movements, corresponding to an active state. A moderate micro-movement energy value indicates slight activity or a sedentary state. A low and stable micro-movement energy value indicates sleep or a static state. This quantitative indicator provides a basis for accurately determining human posture.

[0061] Step S102: Normalize the height of the human target to obtain a height normalization value.

[0062] Once the height of the human target and the horizontal distance between the human and the air conditioner are determined, normalization processing is required to resolve processing deviations caused by differences in multi-dimensional data, and to ensure recognition accuracy and air conditioner control reliability.

[0063] In this step, the formula can be used. The height H of the human target is normalized, wherein... This is the preset maximum target height for the human body.

[0064] Step S103: Normalize the horizontal distance to obtain a distance normalization correction value.

[0065] In this step, the formula can be used. For horizontal distance Normalization is performed, wherein... This is the preset maximum horizontal distance.

[0066] Step S104: The height normalization value, distance normalization correction value, and human body micro-motion intensity are weighted by weighting coefficients and then summed to obtain a comprehensive evaluation index.

[0067] After obtaining the height normalized value and the distance normalized correction value, based on the formula The normalized height value, the normalized distance correction value, and the intensity of human body micro-movements are weighted and summed to obtain a comprehensive evaluation index. ,in, To comprehensively evaluate the judgment index, M represents the intensity of human body micro-movement. , and These are the weighting coefficients, + + =1. After reliability verification, the value of α is 0.5, the value of β is 0.3, and the value of γ is 0.2.

[0068] Step S105: Determine the human posture based on the magnitude of the comprehensive evaluation index.

[0069] The magnitude of the comprehensive evaluation index varies depending on the human body posture. Therefore, the calculated comprehensive evaluation index... Later, through analysis The size can be used to infer human posture.

[0070] Step S106: Obtain air conditioning control parameters that match the human body posture. The air conditioning control parameters include the position of the air guide plate, the fan speed, the target exhaust temperature, and the compressor output frequency.

[0071] The applicant discovered through research that different human postures lead to different physiological states. When the physiological state of the human body is different, the heat dissipation needs and tolerance to airflow on the body surface will also be different. Therefore, in order to improve the user experience, this application can autonomously adjust the air conditioning control parameters based on the user's human posture so that the current air conditioning environment matches the heat dissipation needs and tolerance to airflow on the body surface.

[0072] For example, when the body is lying down, it enters a relaxed state with the lowest metabolic rate and weakened thermoregulation. Muscles and joints are relaxed, making them more sensitive to cold stimuli. Strong winds can quickly disperse the warm air layer on the body surface, causing a sudden drop in local temperature, vasoconstriction, and potentially leading to stiffness, soreness, or even sleep disturbances. When the body is sitting, it is semi-active with a moderate metabolic rate and some muscle tension, requiring a more even distribution of heat. Direct drafts can easily cause localized overcooling. When the body is standing, it is in a dynamic or quasi-dynamic state with a higher metabolic rate and stronger thermoregulation, increasing the need for active heat dissipation. Normal drafts can effectively accelerate convection and evaporation, promptly removing heat from the body surface and alleviating stuffiness.

[0073] Therefore, this application can pre-configure air conditioning control parameters that match each human posture, and when a human posture is determined, obtain the air conditioning control parameters that match that human posture.

[0074] Step S107: Adjust the operating status of the air conditioner based on the air conditioner control parameters.

[0075] Once the air conditioning control parameters are determined, the air conditioning controller will adjust the current operating state of the air conditioning based on the pre-configured algorithm logic, using these predetermined air conditioning control parameters as input conditions, and switch the air conditioning to a target state that matches the human body posture.

[0076] The above-described solution disclosed in this application detects the human posture in a target area in real time and determines air conditioning control parameters that match the human posture. These control parameters include the position of the air guide vane, the fan speed, the target exhaust temperature, and the compressor output frequency. Then, based on these control parameters, the air guide vane position, fan speed, target exhaust temperature, and compressor output frequency are adjusted to match the air conditioner's operating state with the human posture. This allows for dynamic adjustment of the air conditioner's operating state based on human posture, ensuring a precise match between the air conditioner's operation and the user's actual behavior, thus improving the user experience. Furthermore, this solution uses a radar sensor instead of existing image acquisition equipment when analyzing human posture. The solution requires less data processing and has lower processor performance requirements, significantly reducing the design cost of the air conditioner.

[0077] The human postures involved in this solution include lying, sitting, and standing postures. This application pre-divides the comprehensive evaluation index into three consecutive intervals (a first preset range, a second preset range, and a third preset range), with different human postures corresponding to different intervals. After determining the comprehensive evaluation index, the interval to which the comprehensive evaluation index belongs is determined; the human posture corresponding to this interval is the user's current human posture in the target area. For example, when the comprehensive evaluation index is within the first preset range, the human posture is determined to be lying; when the comprehensive evaluation index is within the second preset range, the human posture is determined to be sitting; and when the comprehensive evaluation index is within the third preset range, the human posture is determined to be standing. The maximum value of the first preset range is less than the minimum value of the second preset range, and the maximum value of the second preset range is less than the minimum value of the third preset range. The size of the first, second, and third preset ranges can be set according to the accuracy requirements of the prior results. For example, in this embodiment, the first preset range is (0, 0.3], the second preset range is (0.3, 0.7), and the third preset range is any value not less than 0.7. When ≤0.3, the human posture is a lying position; 2. 0.3 < When the value is <0.7, the human posture is a sitting posture. When the value is ≥0.7, the human body posture is standing.

[0078] In this embodiment, after calculating the comprehensive evaluation index, it is necessary to calculate the confidence level of the comprehensive evaluation index based on its fluctuation amplitude. The reliability of the calculated comprehensive evaluation index is determined by comparing this confidence level with the target confidence level. If the calculation result is unreliable, the comprehensive evaluation index needs to be recalculated. If it is reliable, human posture recognition is performed based on the comprehensive evaluation index. Specifically, the confidence level of the comprehensive evaluation index is calculated based on the ratio of its fluctuation variance to its maximum variance. When the confidence level is greater than the target confidence level, the following steps are continued: determining the human posture based on the magnitude of the comprehensive evaluation index, until the air conditioning operating state is adjusted based on the air conditioning control parameters. This can be based on the formula... The confidence level of the comprehensive evaluation judgment index was calculated. The To comprehensively evaluate the judgment indicators The variance of the fluctuation, the The calculated confidence level is set to the preset maximum variance. Compare the value with the preset target confidence level. When the confidence level is... When the confidence level is greater than the target confidence level, it indicates that the calculated comprehensive evaluation index is... Stable and reliable, with a confidence level When the calculated comprehensive evaluation index is not greater than the target confidence level, it indicates that the overall evaluation index is not greater than the target confidence level. Unreliable; user pose in the target area needs to be re-detected until the confidence level is reached. The confidence level is greater than the target confidence level. The target confidence level can be selected according to design requirements; for example, the target confidence level can be any value that is not less than 0.8 and less than 1.

[0079] In this embodiment, the air conditioning control parameters may include the position of the air guide plate, the fan speed, the target exhaust temperature, and the compressor output frequency. The setting methods for these control parameters differ depending on the human body posture. Taking lying, sitting, and standing postures as examples, when the human body is lying down, the target exhaust temperature Tset_base of the compressor is lowered by a first preset temperature (which can be 5 degrees Celsius or other temperature values). The air guide plate is raised to the maximum anti-direct-blow angle, the fan speed is switched to the lowest setting, and the compressor output frequency is calculated based on the correction value of the current compressor frequency and the exhaust temperature deviation, i.e., fout = fnow + Kp × e, where fout is the compressor's output compressor frequency, fnow is the compressor's current compressor frequency, Kp × e is the correction value for the exhaust temperature deviation, and e = Tset – Tnow, Kp is the preset PID proportional coefficient (0.5~1.2), and e is the exhaust temperature deviation. Under the control of these air conditioning control parameters, the air conditioner operates at low exhaust, low frequency, and gentle airflow, with the compressor running at a low to medium frequency, making the human body in a lying position more comfortable.

[0080] When the user is in a seated position, the air guide vane is controlled to swing left and right, maintaining the compressor's target exhaust temperature Tset_base at the default temperature. The fan speed is switched to the first target speed, which is higher than the lowest speed. The compressor output frequency is calculated based on the correction value between the current compressor frequency and the exhaust temperature deviation, i.e., fout = fnow + Kp × e. Under this air conditioning control parameter, the air conditioner operates at standard exhaust and a stable frequency, with the compressor running within its normal range, making the seated user more comfortable.

[0081] When the human body is in a standing position, the target exhaust temperature Tbase of the compressor is increased by a second preset temperature (which can be 5 degrees Celsius or other temperature values). The air guide plate is controlled to be at the default angle, and the fan speed is switched to the second target speed, which is higher than the first target speed. Based on the current compressor frequency, the correction value of the exhaust temperature deviation, and the target compensation frequency, the compressor output frequency is calculated, i.e., fout = fnow + Kp × e + X, where X is the target compensation frequency. The value of X can be selected according to the setting requirements. For example, in this embodiment, the value of X can be 3, and its unit is the same as the unit of fnow. Under the control of these air conditioning control parameters, the air conditioner is in a state of raising the exhaust and increasing the frequency to ensure the cooling / heating capacity, which makes the human body in a standing position more comfortable.

[0082] In this embodiment, when no human activity is detected in the target area, the air conditioner can be switched to the lowest power consumption state. For example, the target exhaust temperature can be reduced to a preset minimum value, and the compressor output frequency can be kept in a low-frequency operating state to reduce the power consumption of the air conditioner.

[0083] When standing, the body's metabolic rate is relatively high, and activity levels are high, generating more heat. Setting the standing mode to the highest priority allows the air conditioner to quickly adjust to a suitable temperature, humidity, and fan speed for standing individuals, effectively removing excess heat from the surrounding environment and preventing discomfort caused by heat buildup, thus improving thermal comfort. When sitting, the body's activity level is lower than when standing, resulting in a relatively slower metabolic rate and less heat generation. When no one is standing, operating the air conditioner in sitting mode provides a comfortable environment that meets the thermal comfort needs of seated individuals, avoiding both excessively low temperatures and stuffy conditions. When lying down, the body is in a relatively static state, with a further reduced metabolic rate, making it more sensitive to changes in ambient temperature and humidity. When no one is standing or sitting, operating the air conditioner in lying mode creates a quiet, comfortable, and temperature-appropriate environment for sleep or rest, improving the quality of rest for those lying down. By adjusting the air conditioner's operating mode based on posture and activity level, unnecessary energy consumption can be avoided. For example, when only a person is lying down in the room, the air conditioner can be set to lie-down mode, which appropriately reduces the cooling or heating power. This can meet the needs of the person lying down while reducing energy consumption and improving energy efficiency.

[0084] Assigning different priorities to different postures in air conditioning control enables precise adaptation between the environment and human body states, bringing multi-dimensional positive effects. In terms of energy utilization, adjusting energy consumption based on posture patterns allows for precise control, preventing excessive cooling or heating when human activity is low, reducing equipment load, minimizing energy waste and equipment wear, and extending air conditioning lifespan. Therefore, in this embodiment, when the target area includes at least two users and at least two human postures are detected, air conditioning control parameters matching the human postures are obtained, including: identifying the priority of each detected human posture, selecting the highest priority human posture as the target human posture; and obtaining air conditioning control parameters matching the target human posture.

[0085] From a human comfort perspective, when standing, the body's metabolism is rapid and heat production is high. Prioritizing the standing mode allows for quick adjustment of temperature, humidity, and airflow, effectively dissipating heat and preventing stuffiness and discomfort. When sitting, activity levels are secondary, and the corresponding mode provides a suitable environment, preventing excessive cold or heat. When lying down, the body is still, metabolism is low, and the body is sensitive to the environment; the lying down mode creates a quiet and comfortable space, improving rest quality. Therefore, in this application, the priority configuration for each human posture can be such that the lying down posture has a lower priority than the sitting posture, and the sitting posture has a lower priority than the standing posture.

[0086] As can be seen from the above solutions, this application uses millimeter-wave radar to accurately sense and identify indoor human postures, distinguishing between three typical human states: lying down, sitting, and standing. Based on the activity characteristics and ergonomic needs corresponding to different postures, it automatically matches the anti-direct-blow control strategy and air supply operation mode. When a user is detected lying down, the system automatically raises the angle of the air guide plate to avoid direct airflow on the human body, while reducing the fan frequency to achieve quiet and low-noise air supply and slightly increasing the set temperature. When a sitting posture is detected, the control system automatically activates the air sweeping function and switches to a gentle airflow mode to reduce the discomfort caused by direct airflow while ensuring cooling and heating effects. When a user is detected standing, the air conditioner resumes normal fan speed and high-efficiency air supply mode, balancing rapid temperature adjustment and usage efficiency. If no human body is present within the radar detection range, the system automatically enters the energy-saving operation mode, reducing the load on the fan and compressor to achieve intelligent power saving.

[0087] Based on the existing air conditioner hardware structure, this invention achieves human posture recognition and adaptive air supply control without the need for additional sensors or other hardware devices. It achieves this by optimizing the millimeter-wave radar detection algorithm and the air conditioner control logic. This effectively solves the problems of traditional air conditioners, which can only detect the presence of a human body but cannot distinguish between human posture and activity status, easily causing direct cold air blowing, physical discomfort, and energy waste. It significantly improves the intelligence level of air conditioner operation, human comfort, and user experience. The overall solution has a simple structure, high reliability, and strong adaptability, and can be widely used in various intelligent air conditioning products.

[0088] In addition to the above method, this embodiment also discloses an air conditioning control device based on human posture. For the specific working content of each unit in the device, please refer to the content of the above method embodiment.

[0089] The following describes the air conditioning control device based on human posture provided by the embodiments of the present invention. The air conditioning control device based on human posture described below and the air conditioning control method based on human posture described above can be referred to in correspondence.

[0090] See Figure 3 The human posture-based air conditioning control device disclosed in this application may include:

[0091] The posture detection unit 10 is used to acquire the height of the human target, the horizontal distance between the human body and the air conditioner, and the intensity of human body micro-motion in the target area through a radar sensor; normalize the height of the human target to obtain a height normalized value; normalize the horizontal distance to obtain a distance normalized correction value; sum the height normalized value, the distance normalized correction value, and the intensity of human body micro-motion after weighting by weighting coefficients to obtain a comprehensive evaluation index; and determine the human posture based on the magnitude of the comprehensive evaluation index.

[0092] The control parameter acquisition unit 20 is used to acquire air conditioning control parameters that match the human body posture. The air conditioning control parameters include the position of the air guide plate, the fan speed, the target exhaust temperature, and the compressor output frequency.

[0093] Control unit 30 is used to adjust the operating status of the air conditioner based on the air conditioner control parameters.

[0094] Corresponding to the above-described device, this application also provides an air conditioner, which includes at least one processing device and a storage device connected to the processing device, wherein: the storage device is used to store a computer program; the processing device is used to execute the computer program so that the air conditioner can implement any of the above-described human posture-based air conditioning control methods.

[0095] This application also provides a computer storage medium that carries one or more computer programs. When the one or more computer programs are executed by the air conditioner, the air conditioner can implement any of the human posture-based air conditioning control methods provided in this application.

[0096] The user information (including but not limited to posture information) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of related data shall comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0097] For ease of description, the above system is described by dividing it into various modules based on their functions. Of course, in implementing this invention, the functions of each module can be implemented in one or more software and / or hardware components.

[0098] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. 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 creative effort.

[0099] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0100] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0101] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0102] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioning control method based on human posture, characterized in that, include: The radar sensor is used to obtain the height of the human body in the target area, the horizontal distance between the human body and the air conditioner, and the intensity of the human body's micro-movements. The height of the human target is normalized to obtain a height normalization value; The horizontal distance is normalized to obtain a distance normalization correction value; The height normalization value, distance normalization correction value, and human body micro-motion intensity are weighted by weighting coefficients and then summed to obtain a comprehensive evaluation index. Human posture is determined based on the magnitude of the comprehensive evaluation index; Obtain air conditioning control parameters that match the human body posture, including air guide plate position, fan speed, target exhaust temperature and compressor output frequency; Adjust the air conditioner's operating status based on the aforementioned air conditioner control parameters. 2.The human posture-based air conditioner control method of claim 1, wherein, The normalized height value, the normalized distance correction value, and the intensity of human body micro-motion are weighted by weighted coefficients and then summed to obtain a comprehensive evaluation index, including: Based on the formula The comprehensive evaluation decision index is calculated ; wherein the , and are weighting coefficients, + + = 1. The H is the height of the human target, and H is the maximum height of the human target. The is a distance normalization correction value, the is a horizontal distance, the is a maximum horizontal distance; M represents the intensity of human body micro-movement. 3.The human posture-based air conditioner control method of claim 2, wherein, Determining human posture based on the magnitude of the comprehensive evaluation index includes: When the comprehensive evaluation index is within the first preset range, the human body posture is determined to be a lying posture. When the comprehensive evaluation index is within the second preset range, the human posture is determined to be a sitting posture. When the comprehensive evaluation index is within the third preset range, the human posture is determined to be a standing posture. Wherein, the maximum value of the first preset range is less than the minimum value of the second preset range, and the maximum value of the second preset range is less than the minimum value of the third preset range. 4.The human posture-based air conditioner control method of claim 3, wherein, After calculating the comprehensive evaluation index, and before determining the human posture based on the magnitude of the comprehensive evaluation index, the following steps are also included: The confidence level of the comprehensive evaluation judgment index is calculated based on the ratio of the fluctuation variance to the maximum variance. When the confidence level is greater than the target confidence level, the following steps are continued: determining the human posture based on the magnitude of the comprehensive evaluation judgment index, until the air conditioning operation status is adjusted based on the air conditioning control parameters. 5.The human posture-based air conditioner control method of claim 1, wherein, Obtain air conditioning control parameters that match human posture, including: When the human body is in a lying position, the target exhaust temperature of the compressor is reduced to the first preset temperature, the air guide plate is raised to the maximum anti-direct blowing angle, the fan speed is switched to the lowest speed, and the compressor output frequency is calculated based on the correction value of the deviation between the current compressor frequency and the exhaust temperature. When the human body is in a sitting position, the air guide plate is controlled to sweep left and right, and the fan speed is switched to the first target speed. The first target speed is higher than the lowest speed. The compressor output frequency is calculated based on the correction value of the deviation between the current compressor frequency and the exhaust temperature. When the human body is in a standing position, the target exhaust temperature of the compressor is increased by a second preset temperature, the air guide plate is controlled to be at the default angle, and the fan speed is switched to the second target speed, which is higher than the first target speed. The compressor output frequency is calculated based on the current compressor frequency, the correction value of the exhaust temperature deviation, and the target compensation frequency.

6. The air conditioning control method based on human posture according to claim 1, characterized in that, When the target area includes at least two users and at least two human postures are detected, air conditioning control parameters matching the human postures are obtained, including: Identify the priority of each detected human pose and select the human pose with the highest priority as the target human pose. Obtain air conditioning control parameters that match the posture of the target human body.

7. The air conditioning control method based on human posture according to claim 6, characterized in that, The priority of lying down posture is lower than that of sitting posture, which in turn is lower than that of standing posture.

8. An air conditioning control device based on human posture, characterized in that, include: The attitude detection unit is used to obtain the height of the human target in the target area, the horizontal distance between the human body and the air conditioner, and the intensity of the human body's micro-movement through radar sensors; The height of the human target is normalized to obtain a height normalized value; the horizontal distance is normalized to obtain a distance normalized correction value; the height normalized value, the distance normalized correction value, and the intensity of human micro-movement are weighted by weighting coefficients and then summed to obtain a comprehensive evaluation index; the human posture is determined based on the magnitude of the comprehensive evaluation index. The control parameter acquisition unit is used to acquire air conditioning control parameters that match the human body posture. The air conditioning control parameters include the position of the air guide plate, the fan speed, the target exhaust temperature, and the compressor output frequency. The control unit is used to adjust the operating status of the air conditioner based on the air conditioner control parameters.

9. An air conditioner characterized by comprising: It includes at least one processing device and a storage device connected to the processing device, wherein: The storage device is used to store computer programs; The processing device is used to execute the computer program so that the air conditioner can implement the human posture-based air conditioning control method as described in any one of claims 1 to 7.

10. A computer storage medium, characterized in that, The storage medium carries one or more computer programs that, when executed by the air conditioner, enable the air conditioner to implement the human posture-based air conditioning control method as described in any one of claims 1 to 7.

Images