Sunlight time management and spatial position positioning LED lamp bead based on sunshine vision flat replacement and positioning system of sunlight time management and spatial position positioning LED lamp bead

Abstract

The invention relates to the technical field of intelligent lighting, in particular to an LED lamp bead for sunlight time management and spatial position positioning based on sunlight vision replacement and a positioning system thereof, and the LED lamp bead obtains the pupil position, the spatial position and the natural light parameter of the current time period of a user in real time through a visual perception module, a spatial positioning module and a sunlight time management module. The control module calculates and dynamically adjusts the light emitting parameter of each LED lamp bead in real time according to data transmitted by each module, it is ensured that light rays are always aligned with pupils of a user, personalized illumination experience is provided, and the user experience is improved. The feedback adjusting module carries out data feedback and fine adjustment by monitoring actual illumination output of the lamp bead array in real time, and a preset illumination effect is kept. The invention provides an efficient and healthy visual light enabling and visual light field remodeling solution, can meet the illumination requirements of a user in different time and environments, protects and enhances the visual health of a wearer, and improves the visual comfort and overall experience of the user.

Description

Technical Field

[0001] The present invention relates to the field of intelligent lighting technology, and in particular to an LED lamp bead and a positioning system thereof for sunlight time management and spatial position positioning based on sunlight visual replacement. Background Art

[0002] With the development of science and technology and the improvement of people's quality of life, the demand for intelligent and personalized lighting systems is growing. Especially in indoor lighting environments, users not only hope that the lighting system can provide sufficient brightness, but also expect it to provide a dynamic lighting experience similar to natural light according to different time periods, environmental changes and personal biorhythms. In recent years, intelligent lighting technology has gradually emerged, and it has realized simple automatic adjustment functions by sensing information such as the light intensity of the external environment and the user's location. However, how to further improve the intelligence level of the lighting system, especially how to simulate the changes in natural light and accurately adjust the light direction and brightness according to user needs, has become a key direction of technological innovation in the current lighting industry.

[0003] Existing smart lighting technologies have many deficiencies in practical applications. First, most smart lighting systems rely only on ambient light sensors for brightness adjustment and are unable to obtain the user's specific location and pupil dynamic information in real time, resulting in the inability of light to accurately illuminate the area required by the user, causing waste of light energy and visual discomfort to the user. Secondly, existing systems mostly use static or preset lighting modes, lack simulation of natural light changes over time periods, and cannot effectively adjust the indoor lighting environment to match the user's biological rhythm. In addition, the monitoring and feedback mechanism of light in the existing technology is relatively simple, making it difficult to achieve precise real-time fine-tuning, and unable to provide continuous, stable and personalized lighting effects. Summary of the invention

[0004] The invention provides an LED lamp bead and a positioning system thereof for sunlight time management and spatial position positioning based on sunlight visual replacement.

[0005] An LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution, comprising a lamp bead array module, a visual perception module, a spatial positioning module, a sunlight time management module, a control module and a feedback adjustment module, wherein;

[0006] The lamp bead array module is composed of a number of LED lamp beads, each of which is equipped with an adjustable optical device for controlling the emission direction, intensity and color temperature of light;

[0007] The visual perception module includes an image sensor for capturing the user's eye movements, obtaining the real-time position coordinates of the user's pupil, and transmitting the pupil position data to the control module;

[0008] The spatial positioning module includes a position sensor for acquiring the position data of the user in space and transmitting the spatial position data to the control module;

[0009] The sunlight time management module has a built-in sunrise and sunset time calculation system, which is used to simulate the changes in sunlight in different time periods in nature, generate corresponding lighting parameter data, including lighting angle, brightness and color temperature, and transmit the lighting parameter data to the control module;

[0010] The control module receives data from the visual perception module, the spatial positioning module and the sunlight time management module, and calculates and adjusts the light emission direction, brightness and color temperature parameters of each LED lamp bead in the lamp bead array module in real time based on the user's pupil position, spatial position and illumination parameters, so that the light of each LED lamp bead is aimed at the user's pupil, simulating the natural lighting effect at different time periods;

[0011] The feedback adjustment module is used to monitor the actual lighting output parameters of the lamp bead array module, including light direction, brightness and color temperature, and feed back the monitoring data to the control module. The control module fine-tunes the light-emitting parameters according to the feedback data to maintain the preset lighting effect.

[0012] Optionally, the lamp bead array module specifically includes:

[0013] LED lamp beads arrangement: a number of LED lamp beads are installed on the substrate in a predetermined matrix or array form;

[0014] Equipped with adjustable optics: Each LED lamp bead is equipped with adjustable optics;

[0015] Light intensity control: configure an independent driving circuit for each LED lamp bead, adjust the current passing through the LED, and use pulse width modulation to control the on and off ratio of the LED, thereby adjusting the light intensity;

[0016] Color temperature adjustment: Integrate LED chips with multiple color temperatures (such as cold white light and warm white light) in a single LED lamp bead, and change the color temperature by adjusting the current ratio of the chip. Use an adjustable phosphor layer to change the wavelength of the excitation light to achieve the purpose of color temperature adjustment.

[0017] Control signal reception: Each drive circuit and optical device control unit is equipped with a communication interface to receive control signals from the control module;

[0018] Heat dissipation management: Design efficient heat dissipation structures around the substrate and LED lamp beads, such as aluminum substrate, heat dissipation fins or active cooling fans.

[0019] Optionally, the visual perception module specifically includes:

[0020] Image acquisition: Capturing images of the user's eye area through an image sensor;

[0021] Image preprocessing: Convert the captured image of the user's eye area into a grayscale image to reduce the computational complexity, use a filtering algorithm to remove noise from the image, improve image quality, enhance image contrast, and highlight eye features;

[0022] Pupil detection: Use the Canny edge detection algorithm to identify the eye contour, extract the eyeball and pupil edge images, and use the Hough circle transform algorithm in the detected edge image to identify and fit the circular edge of the pupil to obtain the position and radius of the pupil;

[0023] Pupil position calculation: Extract the pixel coordinates of the pupil center point from the fitted pupil circle, convert the pixel coordinates into normalized image coordinates according to the camera intrinsic parameters of the image sensor, and convert the normalized image coordinates into three-dimensional space coordinates in combination with the user's distance estimation to obtain the pupil position data;

[0024] Data filtering and optimization: Apply Kalman filter to smooth the pupil position data of consecutive frames to reduce measurement noise and improve data stability;

[0025] Data transmission: The processed pupil position data is sent to the control module through a communication interface (such as I2C, SPI or USB).

[0026] Optionally, the spatial positioning module specifically includes:

[0027] Sensor type and layout: Position sensors are placed around the space or on the ceiling to provide comprehensive coverage of the user's location. The position sensors include ultrasonic sensors, infrared sensors, and lidar.

[0028] Data collection: The position sensor collects the user's spatial position data in real time, and processes the original signal collected by the position sensor through the mean filter algorithm to remove noise and interference to ensure data accuracy;

[0029] Triangulation algorithm: Based on the distance data measured by the location sensor, the user's three-dimensional position coordinates are calculated using triangulation;

[0030] Data fusion: Fusion and optimization of the 3D position data obtained by ultrasonic sensors, infrared sensors and lidar to obtain the user's final 3D position coordinates;

[0031] Data transmission: The final three-dimensional position coordinate data is transmitted to the control module through a preset wireless communication unit or SPI interface for real-time adjustment of the light direction.

[0032] Optionally, the sunlight time management module specifically includes:

[0033] Geographic location and time acquisition: The sunlight time management module determines the benchmark for simulating sunrise and sunset times based on the user's current geographic location information (longitude and latitude), and obtains the current time (including date, hour and minute) through the built-in clock or external time service to calculate the current position of the sun in the sky;

[0034] Sun position calculation: Based on the user's geographical location and current time, the current sun angle is calculated using astronomical formulas;

[0035] Brightness and color temperature calculation: Generate light brightness and color temperature according to the sun's illumination angle and current time;

[0036] Generate lighting parameter data: Generate a lighting parameter data packet based on the calculated lighting angle, brightness and color temperature data, and send the lighting parameter data packet to the control module.

[0037] Optionally, the control module specifically includes:

[0038] Data reception and preprocessing: The control module receives pupil position data from the visual perception module, the user's three-dimensional position coordinate data provided by the spatial positioning module, and the lighting parameters provided by the sunlight time management module, including lighting angle, brightness and color temperature;

[0039] Light direction adjustment calculation: According to the user's pupil position and spatial position, the control module calculates the direction of light emitted by each LED lamp bead;

[0040] Brightness adjustment calculation: Based on the brightness parameters from the sunlight time management module, combined with the user's distance and ambient light intensity, the control module calculates the luminous intensity of each LED lamp bead;

[0041] Color temperature adjustment: According to the color temperature parameters provided by the sunlight time management module, the control module adjusts the color temperature of each LED lamp bead to simulate the color temperature change of natural light;

[0042] Adjust the control signal: The control module transmits the calculated luminous angle, brightness and color temperature parameters of each LED lamp bead to the lamp bead array module through the driving circuit, adjusts the light output in real time, obtains the actual output data of the current light through the feedback adjustment module, and compares it with the expected light parameters.

[0043] Optionally, the feedback adjustment module specifically includes:

[0044] Sensor arrangement and data collection: The light direction sensor is used to monitor the light direction of each LED lamp bead in real time, obtain the horizontal and vertical angles of the light, measure the actual luminous brightness of each LED lamp bead through the brightness sensor, and monitor the color temperature output of each LED lamp bead through the color temperature sensor;

[0045] Data transmission and processing: The light direction, brightness and color temperature parameters acquired by the sensor in real time are transmitted to the feedback adjustment module through a communication interface (such as I2C, SPI or wireless communication unit), and the acquired parameters are processed to eliminate noise and errors and compared with the preset target light parameters;

[0046] Error calculation: Calculate the illumination deviation, including the luminous direction deviation, brightness deviation and color temperature deviation, based on the actual monitored output parameters and the illumination parameters set by the control module;

[0047] Feedback regulation: The feedback regulation module transmits the calculated error data to the control module. The control module adjusts the light emitting direction, brightness and color temperature of each LED lamp bead in real time based on the error data transmitted by the feedback regulation module.

[0048] Optionally, the adjustable optical device includes a liquid crystal lens, a micro-electromechanical system micro-mirror and a multi-segment optical system, wherein;

[0049] Liquid crystal lens: used to dynamically adjust the light-emitting angle and change the beam width of the LED lamp beads to adapt to different space requirements and user positions;

[0050] MEMS micromirror: used to control the light emission direction of LED lamp beads. Through the micro-angle adjustment of the micromirror, the light can be guided in the horizontal and vertical directions.

[0051] Multi-segment optical system: It is composed of multiple lenses or reflectors, which can automatically adjust the focus or diffusion of the light beam according to the user's position and ambient light to optimize the lighting effects at long and short distances.

[0052] Optionally, the lamp bead array module is mounted on a flexible substrate and arranged in a grid form, allowing the system to be installed on a curved surface or wearable device to expand application scenarios.

[0053] Beneficial effects of the present invention:

[0054] The present invention can accurately obtain the user's pupil position and spatial position through the coordinated work of the visual perception module and the spatial positioning module, and adjust the light direction, brightness and color temperature of the LED lamp beads in real time through the control module. The light of each LED lamp bead can be dynamically aligned with the user's pupil, and the light parameters can be intelligently adjusted according to the natural light changes simulated by the sunlight time management module. This precise personalized adjustment greatly improves the utilization efficiency of light and the user's visual comfort, avoiding light blind spots and unnecessary waste of light energy.

[0055] In the present invention, the feedback adjustment module can quickly adjust the lighting deviation by real-time monitoring the actual output parameters of the lamp bead array (including light direction, brightness and color temperature), and feed back the monitoring data to the control module, so as to ensure that the system continues to maintain the preset lighting effect. At the same time, the intelligent correction algorithm and historical data analysis function further enhance the self-learning ability of the system, and can automatically optimize the lighting parameters according to long-term use, so that the system can adapt to the user's changing lighting needs and achieve long-term stability and dynamic optimization of the lighting effect.

[0056] In the present invention, the sunlight time management module can accurately simulate the changes in light angle, brightness and color temperature at different time periods in nature according to the user's geographical location and current time, and provide a lighting environment that is compatible with the biological rhythm. By combining the geographical location information and the accurate calculation of the solar altitude angle, the system can automatically adjust the lighting parameters so that the user can experience an effect close to natural light indoors. This not only improves the user's visual health, but also has a significant positive effect in terms of biological rhythm regulation, improving work efficiency and improving sleep quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 A schematic diagram of a system flow of an embodiment of the present invention;

[0059] Figure 2 Schematic diagram of a control module flow chart of an embodiment of the present invention. DETAILED DESCRIPTION

[0060] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0061] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0062] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0063] like Figure 1-Figure 2 As shown, an LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution, including a lamp bead array module, a visual perception module, a spatial positioning module, a sunlight time management module, a control module and a feedback adjustment module, wherein;

[0064] The lamp array module consists of several LED lamp beads, each of which is equipped with adjustable optical devices to control the emission direction, intensity and color temperature of the light;

[0065] The visual perception module includes an image sensor for capturing the user's eye movements, obtaining the real-time position coordinates of the user's pupils, and transmitting the pupil position data to the control module;

[0066] The spatial positioning module includes a position sensor for acquiring the position data of the user in space and transmitting the spatial position data to the control module;

[0067] The sunlight time management module has a built-in sunrise and sunset time calculation system, which is used to simulate the changes in sunlight in different time periods in nature, generate corresponding lighting parameter data, including lighting angle, brightness and color temperature, and transmit the lighting parameter data to the control module;

[0068] The control module receives data from the visual perception module, the spatial positioning module and the sunlight time management module, and calculates and adjusts the light direction, brightness and color temperature parameters of each LED lamp bead in the lamp bead array module in real time based on the user's pupil position, spatial position and light parameters, so that the light of each LED lamp bead is aimed at the user's pupil, simulating the natural light effect at different time periods;

[0069] The feedback adjustment module is used to monitor the actual lighting output parameters of the lamp bead array module, including light direction, brightness and color temperature, and feed the monitoring data back to the control module. The control module fine-tunes the light-emitting parameters according to the feedback data to maintain the preset lighting effect.

[0070] The lamp array module specifically includes:

[0071] LED lamp bead arrangement: install a number of LED lamp beads on the substrate in a predetermined matrix or array form, ensuring that the lamp bead spacing and arrangement method meet the requirements of light uniformity;

[0072] Equipped with adjustable optics: Each LED lamp bead is equipped with adjustable optics;

[0073] Light intensity control: configure an independent driving circuit for each LED lamp bead, adjust the current passing through the LED, and use pulse width modulation to control the on and off ratio of the LED, thereby adjusting the light intensity;

[0074] Color temperature adjustment: Integrate LED chips with multiple color temperatures (such as cold white light and warm white light) in a single LED lamp bead, and change the color temperature by adjusting the current ratio of the chip. Use an adjustable phosphor layer to change the wavelength of the excitation light to achieve the purpose of color temperature adjustment.

[0075] Control signal reception: Each drive circuit and optical device control unit is equipped with a communication interface to receive control signals from the control module, ensuring that all LED lamp beads and optical devices respond to control signals synchronously and adjust light parameters in real time;

[0076] Heat dissipation management: Design efficient heat dissipation structures around the substrate and LED lamp beads, such as aluminum substrate, heat dissipation fins or active cooling fans to ensure stable operation of the system;

[0077] The lamp bead array module equips each LED lamp bead with adjustable optical devices to achieve precise control of light emission direction, intensity and color temperature. It adjusts light parameters in real time according to the user's pupil position and ambient lighting requirements to ensure that light is accurately irradiated to the user's eye area, providing a lighting effect close to natural light. Its flexible optical adjustment capability improves visual comfort, helps maintain the user's biorhythm, and meets personalized lighting needs.

[0078] The visual perception module specifically includes:

[0079] Image acquisition: The image sensor is used to continuously capture images of the user's eye area at a high frame rate (e.g., 60 frames per second or higher). The camera's field of view covers the area where the user may move, so that the eye image can still be captured when the user moves.

[0080] Image preprocessing: Convert the captured image of the user's eye area into a grayscale image to reduce the computational complexity, and use a filtering algorithm (such as Gaussian filtering) to remove noise from the image, improve image quality, enhance image contrast, and highlight eye features;

[0081] Pupil detection: Use the Canny edge detection algorithm to identify the eye contour and extract the eyeball and pupil edge images. In the detected edge image, use the Hough circle transform algorithm to identify and fit the circular edge of the pupil to obtain the position and radius of the pupil. The Hough circle transform algorithm is expressed as:

[0082] (x p -a) 2 +(y p -b) 2 =r 2 ;

[0083] Among them, (x p ,y p ) is the pixel coordinate of the pupil center, x p ,y p is the corresponding coordinate value, a, b are the center coordinates of the fitted pupil circle, and r is the fitted pupil radius;

[0084] Pupil position calculation: Extract the pixel coordinates of the pupil center point from the fitted pupil circle, convert the pixel coordinates into normalized image coordinates according to the camera intrinsic parameters of the image sensor, and convert the normalized image coordinates into three-dimensional space coordinates (X p , Y p , Z p ), obtain pupil position data;

[0085] The pixel coordinates are converted to normalized image coordinates, expressed as:

[0086]

[0087] Among them, c x , c y is the optical center coordinate of the image sensor, f x , f y is the focal length of the image sensor in pixels, x n ,y n is the normalized image coordinate of the pupil, (x p ,yp ) is the pixel coordinate of the pupil center, x p ,y p is the corresponding coordinate value;

[0088] The normalized image coordinates are converted to three-dimensional space coordinates, expressed as:

[0089]

[0090] Among them, x n ,y n is the normalized image coordinate of the pupil, Z p is the estimated distance from the pupil to the camera, which can be obtained through a fixed value or sensor data;

[0091] Data filtering and optimization: Apply Kalman filter to smooth the pupil position data of consecutive frames to reduce measurement noise and improve data stability;

[0092] Data transmission: The processed pupil position data is sent to the control module through a communication interface (such as I2C, SPI or USB) to ensure the real-time nature of the data;

[0093] The visual perception module can accurately capture the dynamic position of the user's pupil in real time through high-performance image sensors, edge detection, Hough circle transform and Kalman filtering algorithms. The module converts pixel coordinates into three-dimensional space coordinates and transmits them to the control module, ensuring that the system can adjust the direction of light emission in real time according to the user's line of sight, providing efficient and intelligent light adjustment.

[0094] The spatial positioning module specifically includes:

[0095] Sensor type and layout: Position sensors are placed around the space or on the ceiling to provide comprehensive coverage of the user's location and ensure that the system can accurately locate the user's three-dimensional spatial coordinates. Position sensors include ultrasonic sensors, infrared sensors, and lidar.

[0096] Ultrasonic sensor: used to detect the distance between the user and the sensor, measuring the distance by sending and receiving sound wave reflection signals;

[0097] Infrared sensor: uses the reflection characteristics of infrared light to measure the distance between the user and the sensor, suitable for precise positioning at close range;

[0098] Laser radar (LiDAR): used to obtain the user's three-dimensional position. LiDAR accurately measures the distance in space by emitting and receiving laser signals. It is particularly suitable for positioning over a large range.

[0099] Data collection: The position sensor collects the user's spatial position data in real time at a high frequency (e.g., 30 times per second or more). The original signal collected by the position sensor is processed through a mean filter algorithm to remove noise and interference to ensure data accuracy.

[0100] Triangulation algorithm: Based on the distance data measured by the position sensor, the three-dimensional position coordinates of the user are calculated using triangulation, which is expressed as:

[0101]

[0102] Among them, d i is the distance from the user to the sensor measured by the known i-th sensor, (X i ,Y i ,Z i ) is the known fixed coordinate of the i-th sensor, (X u ,Y u ,Z u ) is the user's three-dimensional position coordinate. In the triangulation method, multiple known position sensor positions (X i ,Y i ,Z i ) and the measured distance d i , to determine the unknown user 3D position coordinates (X u ,Y u ,Z u );

[0103] Data fusion: Fusion and optimization of the 3D position data obtained by ultrasonic sensors, infrared sensors and lidar, smoothing the data using a Kalman filter to reduce noise and errors, and assigning weights to the data of different sensors based on their accuracy and measurement characteristics to obtain the user's final 3D position coordinates;

[0104] Data transmission: The final three-dimensional position coordinate data is transmitted to the control module through a preset wireless communication unit or SPI interface for real-time adjustment of the light direction;

[0105] The spatial positioning module combines ultrasonic sensors, infrared sensors and lidar, and through triangulation algorithms and multi-sensor fusion technology, can accurately obtain the user's three-dimensional position data at different distances and in complex environments. The Kalman filter further improves the accuracy and stability of the positioning data. The spatial positioning module provides the system with high-precision user spatial position data, ensuring that the system can adjust the light direction according to the user's real-time position, improving the intelligence of light control and the comfort of user experience.

[0106] The sunshine time management module specifically includes:

[0107] Geographic location and time acquisition: The sunlight time management module determines the benchmark for simulating sunrise and sunset times based on the user's current geographic location information (longitude and latitude), and obtains the current time (including date, hour and minute) through the built-in clock or external time service to calculate the current position of the sun in the sky;

[0108] Sun position calculation: Based on the user's geographical location and current time, the current sun angle is calculated using the formula in astronomy, expressed as:

[0109] α=arcsin(sinφsinδ+cosφcosδcosH);

[0110] Among them, α is the altitude angle of the sun (light angle), φ is the latitude of the user, and δ is the declination angle of the sun, which represents the angle of the sun relative to the earth's equator. The calculation formula is:

[0111]

[0112] Where N is the day of the year and H is the hour angle, calculated as:

[0113] H=15°×(T local -12);

[0114] Among them, T local is the local time (in hours), 12 represents noon;

[0115] Brightness and color temperature calculation: Generate light brightness and color temperature based on the sun's illumination angle and current time;

[0116] The light intensity is calculated as:

[0117] I=I max ×sin(α);

[0118] Among them, I max is the maximum light intensity when the sun is shining directly at noon (in lumens), and α is the angle of the sun;

[0119] The color temperature is calculated as:

[0120] C=C min +(C max -C min )×sin(α);

[0121] Among them, C min is the lowest color temperature in the morning and evening (in Kelvin, such as 2700K), C max is the highest color temperature at noon (in Kelvin, such as 6500K), and α is the angle of sunlight;

[0122] Generate lighting parameter data: Generate a lighting parameter data packet based on the calculated lighting angle, brightness and color temperature data, and send the lighting parameter data packet to the control module;

[0123] The sunlight time management module can simulate the changes in sunlight in different time periods in nature through precise calculation of the sun's position, and generate lighting parameters that match the actual environment, including lighting angle, brightness and color temperature. The module adjusts the output of the lighting system in real time according to the user's location and current time, providing a lighting experience close to natural light, thereby improving the user's visual comfort and helping to maintain biological rhythms. The sunlight time management module enables the entire system to adaptively adjust according to changes in natural light in the outside world, and is highly intelligent and practical.

[0124] The control module specifically includes:

[0125] Data reception and preprocessing: The control module receives pupil position data from the visual perception module, the user's three-dimensional position coordinate data provided by the spatial positioning module, and the lighting parameters provided by the sunlight time management module, including lighting angle, brightness and color temperature;

[0126] Light direction adjustment calculation: According to the user's pupil position (X p ,Y p ,Z p ) and spatial position (X u ,Y u ,Z u ), the control module calculates the direction of light emitted by each LED lamp bead so that its light is aimed at the user's pupil;

[0127] The calculation of the light emission direction is expressed as:

[0128]

[0129] Among them, θ i is the horizontal emission angle of the i-th LED lamp bead, φ i is the vertical emission angle of the ith LED lamp bead, (X i ,Y i ,Z i ) is the three-dimensional coordinate of the i-th LED lamp bead, (X p ,X p ,Z p ) is the three-dimensional position of the user's pupil;

[0130] Brightness adjustment calculation: Based on the brightness parameters from the sunlight time management module, combined with the user's distance and ambient light intensity, the control module calculates the luminous intensity of each LED lamp bead;

[0131] The brightness adjustment formula is expressed as:

[0132]

[0133] Among them, L i is the brightness of the i-th LED lamp bead, I is the total light illuminance generated by the sunlight time management module, and d i is the distance between the user and the i-th LED lamp bead, and the calculation formula is expressed as:

[0134]

[0135] Color temperature adjustment: According to the color temperature parameters provided by the sunlight time management module, the control module adjusts the color temperature of each LED lamp bead to simulate the color temperature change of natural light;

[0136] Adjust the control signal: The control module transmits the calculated light angle, brightness and color temperature parameters of each LED lamp bead to the lamp bead array module through the driving circuit, adjusts the light output in real time, obtains the actual output data of the current light through the feedback adjustment module, compares it with the expected light parameters, and makes fine adjustments based on the differences;

[0137] By integrating data from the visual perception module, spatial positioning module and sunlight time management module, the control module can accurately calculate and control the light-emitting angle, brightness and color temperature of each LED lamp bead. It ensures that the light is always aimed at the user's pupil and simulates the dynamic changes of natural light to provide an intelligent and personalized lighting experience. The real-time calculation and feedback adjustment functions of the control module improve the system's response speed and the accuracy of light adjustment, ensuring that users are always in the optimal lighting environment at different time periods and spatial locations.

[0138] The feedback adjustment module specifically includes:

[0139] Sensor arrangement and data collection: The light direction sensor is used to monitor the light direction of each LED lamp bead in real time, obtain the horizontal and vertical angles of the light, measure the actual luminous brightness of each LED lamp bead through the brightness sensor, and monitor the color temperature output of each LED lamp bead through the color temperature sensor to ensure that it is consistent with the set color temperature;

[0140] Data transmission and processing: The light direction, brightness and color temperature parameters acquired by the sensor in real time are transmitted to the feedback adjustment module through a communication interface (such as I2C, SPI or wireless communication unit), and the acquired parameters are processed to eliminate noise and errors and compared with the preset target light parameters;

[0141] Error calculation: Calculate the illumination deviation, including the luminous direction deviation, brightness deviation and color temperature deviation, based on the actual monitored output parameters and the illumination parameters set by the control module;

[0142] The direction deviation calculation is expressed as:

[0143]

[0144] Among them, Δθ i is the horizontal angle deviation of the LED lamp bead, Δφ i is the vertical angle deviation of the LED lamp bead, and The light direction set for the control module, and The actual light direction monitored by the sensor

[0145] The brightness deviation is calculated as:

[0146]

[0147] Among them, ΔL i is the brightness deviation of the LED lamp bead, The brightness set for the control module, is the actual brightness measured by the sensor;

[0148] The color temperature deviation is calculated as:

[0149]

[0150] Where, ΔC i is the color temperature deviation of the LED lamp beads, The color temperature set for the control module, is the actual color temperature measured by the sensor;

[0151] Feedback regulation: The feedback regulation module transmits the calculated error data to the control module. Based on the error data transmitted by the feedback regulation module, the control module adjusts the light direction, brightness and color temperature of each LED lamp bead in real time to ensure that the system output is consistent with the preset lighting effect;

[0152] The feedback adjustment module continuously monitors the actual output parameters of the lamp array to ensure that the system obtains accurate data on light direction, brightness and color temperature in real time, and feeds this data back to the control module for fine-tuning. This not only ensures the stability of the system output, but can also make dynamic adjustments based on the external environment and user needs, thereby improving the intelligence level of the system and the accuracy of the lighting effects, ensuring that users are always in the most suitable lighting environment, and providing a more comfortable and healthy lighting experience.

[0153] Adjustable optical devices include liquid crystal lenses, micro-electromechanical system micro-mirrors and multi-segment optical systems, among which;

[0154] Liquid crystal lens: used to dynamically adjust the light-emitting angle and change the beam width of the LED lamp beads to adapt to different space requirements and user positions;

[0155] MEMS micromirror: used to control the light emission direction of LED lamp beads. Through the micro-angle adjustment of the micromirror, the light can be guided in the horizontal and vertical directions.

[0156] Multi-segment optical system: It is composed of multiple lenses or reflectors, which can automatically adjust the focus or diffusion of the light beam according to the user's position and ambient light to optimize the lighting effects at long and short distances.

[0157] The lamp array module is mounted on a flexible substrate and arranged in a grid, allowing the system to be installed on curved surfaces or wearable devices, expanding application scenarios.

[0158] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0159] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution, characterized in that: It includes a lamp array module, a visual perception module, a space positioning module, a sunlight time management module, a control module and a feedback adjustment module, wherein; The lamp bead array module is composed of a number of LED lamp beads, each of which is equipped with an adjustable optical device for controlling the emission direction, intensity and color temperature of light; The visual perception module includes an image sensor for capturing the user's eye movements, obtaining the real-time position coordinates of the user's pupil, and transmitting the pupil position data to the control module; The spatial positioning module includes a position sensor for acquiring the position data of the user in space and transmitting the spatial position data to the control module; The sunlight time management module has a built-in sunrise and sunset time calculation system, which is used to simulate the changes in sunlight in different time periods in nature, generate corresponding lighting parameter data, including lighting angle, brightness and color temperature, and transmit the lighting parameter data to the control module; The control module receives data from the visual perception module, the spatial positioning module and the sunlight time management module, and calculates and adjusts the light emission direction, brightness and color temperature parameters of each LED lamp bead in the lamp bead array module in real time based on the user's pupil position, spatial position and illumination parameters, so that the light of each LED lamp bead is aimed at the user's pupil, simulating the natural lighting effect at different time periods; The feedback adjustment module is used to monitor the actual lighting output parameters of the lamp bead array module, including light direction, brightness and color temperature, and feed back the monitoring data to the control module. The control module fine-tunes the light-emitting parameters according to the feedback data to maintain the preset lighting effect.

2. According to claim 1, a LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution, characterized in that: The lamp bead array module specifically includes: LED lamp beads arrangement: a number of LED lamp beads are installed on the substrate in a predetermined matrix or array form; Equipped with adjustable optics: Each LED lamp bead is equipped with adjustable optics; Light intensity control: configure an independent driving circuit for each LED lamp bead, adjust the current passing through the LED, and use pulse width modulation to control the on and off ratio of the LED, thereby adjusting the light intensity; Color temperature adjustment: Integrate LED chips with multiple color temperatures in a single LED lamp bead, and change the color temperature by adjusting the current ratio of the chip; Control signal reception: Each drive circuit and optical device control unit is equipped with a communication interface to receive control signals from the control module; Heat dissipation management: Design heat dissipation structure around the substrate and LED lamp beads.

3. According to claim 2, a LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution, characterized in that: The visual perception module specifically includes: Image acquisition: Capturing images of the user's eye area through an image sensor; Image preprocessing: Convert the captured image of the user's eye area into a grayscale image, use a filtering algorithm to remove noise in the image, improve image quality, enhance image contrast, and highlight eye features; Pupil detection: Use the Canny edge detection algorithm to identify the eye contour, extract the eyeball and pupil edge images, and use the Hough circle transform algorithm in the detected edge image to identify and fit the circular edge of the pupil to obtain the position and radius of the pupil; Pupil position calculation: Extract the pixel coordinates of the pupil center point from the fitted pupil circle, convert the pixel coordinates into normalized image coordinates according to the camera intrinsic parameters of the image sensor, and convert the normalized image coordinates into three-dimensional space coordinates in combination with the user's distance estimation to obtain the pupil position data; Data filtering and optimization: Apply Kalman filter to smooth the pupil position data of consecutive frames to reduce measurement noise and improve data stability; Data transmission: The processed pupil position data is sent to the control module through the communication interface.

4. The LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution according to claim 3, characterized in that: The spatial positioning module specifically includes: Sensor type and layout: Position sensors are placed around the space or on the ceiling to provide comprehensive coverage of the user's location. The position sensors include ultrasonic sensors, infrared sensors, and lidar. Data collection: The position sensor collects the user's spatial position data in real time, and processes the original signal collected by the position sensor through the mean filter algorithm to remove noise and interference; Triangulation algorithm: Based on the distance data measured by the location sensor, the user's three-dimensional position coordinates are calculated using triangulation; Data fusion: Fusion and optimization of the 3D position data obtained by ultrasonic sensors, infrared sensors and lidar to obtain the user's final 3D position coordinates; Data transmission: The final three-dimensional position coordinate data is transmitted to the control module through a preset wireless communication unit or SPI interface for real-time adjustment of the light direction.

5. The LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution according to claim 4, characterized in that: The sunshine time management module specifically includes: Geographic location and time acquisition: The sunlight time management module determines the benchmark for simulating sunrise and sunset times based on the user's current geographic location information, and obtains the current time through the built-in clock or external time service to calculate the current position of the sun in the sky; Sun position calculation: Based on the user's geographical location and current time, the current sun angle is calculated using astronomical formulas; Brightness and color temperature calculation: Generate light brightness and color temperature based on the sun's illumination angle and current time; Generate lighting parameter data: Generate a lighting parameter data packet based on the calculated lighting angle, brightness and color temperature data, and send the lighting parameter data packet to the control module.

6. The LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution according to claim 5, characterized in that: The control module specifically includes: Data reception and preprocessing: The control module receives pupil position data from the visual perception module, the user's three-dimensional position coordinate data provided by the spatial positioning module, and the lighting parameters provided by the sunlight time management module, including lighting angle, brightness and color temperature; Light direction adjustment calculation: According to the user's pupil position and spatial position, the control module calculates the direction of light emitted by each LED lamp bead; Brightness adjustment calculation: Based on the brightness parameters from the sunlight time management module, combined with the user's distance and ambient light intensity, the control module calculates the luminous intensity of each LED lamp bead; Color temperature adjustment: According to the color temperature parameters provided by the sunlight time management module, the control module adjusts the color temperature of each LED lamp bead; Adjust the control signal: The control module transmits the calculated luminous angle, brightness and color temperature parameters of each LED lamp bead to the lamp bead array module through the driving circuit, adjusts the light output in real time, obtains the actual output data of the current light through the feedback adjustment module, and compares it with the expected light parameters.

7. The LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution according to claim 6, characterized in that: The feedback adjustment module specifically includes: Sensor arrangement and data collection: The light direction sensor is used to monitor the light direction of each LED lamp bead in real time, obtain the horizontal and vertical angles of the light, measure the actual luminous brightness of each LED lamp bead through the brightness sensor, and monitor the color temperature output of each LED lamp bead through the color temperature sensor; Data transmission and processing: The light direction, brightness and color temperature parameters acquired by the sensor in real time are transmitted to the feedback adjustment module through the communication interface, and the acquired parameters are processed to eliminate noise and errors and compared with the preset target light parameters; Error calculation: Calculate the illumination deviation, including the luminous direction deviation, brightness deviation and color temperature deviation, based on the actual monitored output parameters and the illumination parameters set by the control module; Feedback regulation: The feedback regulation module transmits the calculated error data to the control module. The control module adjusts the light emitting direction, brightness and color temperature of each LED lamp bead in real time based on the error data transmitted by the feedback regulation module.

8. The LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution according to claim 1, characterized in that: The adjustable optical device includes a liquid crystal lens, a micro-electromechanical system micro-mirror and a multi-segment optical system, wherein; Liquid crystal lens: used to dynamically adjust the light-emitting angle and change the beam width of the LED lamp beads to adapt to different space requirements and user positions; MEMS micromirror: used to control the light emission direction of LED lamp beads. Through the micro-angle adjustment of the micromirror, the light can be guided in the horizontal and vertical directions. Multi-segment optical system: It is composed of multiple lenses or reflectors, which can automatically adjust the focus or diffusion of the light beam according to the user's position and ambient light to optimize the lighting effects at long and short distances.

9. The LED lamp bead and its positioning system for sunlight time management and spatial position positioning based on sunlight visual substitution according to claim 1, characterized in that: The lamp bead array module is mounted on a flexible substrate and arranged in a grid form, allowing the system to be installed on a curved surface or wearable device, expanding the application scenarios.

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