Illuminating lamp for simulation type illuminating system

Abstract

The invention relates to the field of lighting, and discloses a lighting lamp for a simulation type lighting system, which comprises a mounting plate, a U-shaped sliding groove is formed in one side of the mounting plate, a U-shaped sliding block is slidably connected in the U-shaped sliding groove of the mounting plate, a mounting block is fixedly connected to one side of the U-shaped sliding block, mounting holes are uniformly formed in one side of the mounting block, and the U-shaped sliding block is fixedly connected to the other side of the mounting block. The other side of the mounting block is slidably connected to one side of the mounting plate, an inclined face is arranged on one side of the U-shaped sliding block, a limiting groove is formed in the middle of the U-shaped sliding block, a limiting structure is arranged on one side of the mounting plate, and a threaded groove is formed in one side of the bottom of the mounting plate. The mounting block is mounted at the position where the mounting block needs to be mounted according to requirements, the U-shaped sliding block slides to drive the mounting block to slide on the mounting plate, the limiting structure and the limiting groove are clamped through cooperation of the limiting structure and the inclined face, the mounting plate is limited on the U-shaped sliding block, and the lamp can be rapidly disassembled and assembled.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and specifically to a lighting fixture for a simulation lighting system. Background Art

[0002] With the improvement of people's living standards and the continuous pursuit of a healthy and comfortable living environment, the importance of lighting technology in daily life has become increasingly prominent. In the field of modern lighting, people's requirements for lighting fixtures are no longer limited to simply providing light, but they expect them to simulate the characteristics of natural sunlight and create a more healthy, comfortable, and personalized lighting environment for people.

[0003] Currently, traditional lighting fixtures mainly include incandescent lamps, fluorescent lamps, and ordinary LED lamps. Incandescent lamps have low luminous efficiency, high energy consumption, and discontinuous spectra, lacking some spectral components beneficial to the human body; although the luminous efficiency of fluorescent lamps has been improved, there are stroboscopic problems, which may cause eye fatigue after long-term use, and their spectra are also not complete enough. Ordinary LED lamps are energy-saving and have a long lifespan, but in terms of spectral characteristics, there is still a large gap from natural sunlight and they cannot meet the light requirements of the human body in different physiological states. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a lighting fixture for a simulation lighting system, which solves the problem that traditional lighting fixtures still have a large gap from natural sunlight and cannot meet the light requirements of the human body in different physiological states.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A lighting fixture for a simulation lighting system includes a mounting plate. One side of the mounting plate is provided with a U-shaped chute. A U-shaped slider is slidably connected in the U-shaped chute of the mounting plate. One side of the U-shaped slider is fixedly connected with a mounting block. The other side of the mounting block is slidably connected to one side of the mounting plate. The side of the U-shaped slider is provided with an inclined surface. A limiting groove is opened in the middle of the U-shaped slider. A limiting structure is arranged on one side of the mounting plate. A threaded groove is opened on one side of the bottom of the mounting plate. A connecting ring is threadedly connected in the threaded groove of the mounting plate. A lampshade is fixedly connected to the bottom of the connecting ring. A control system is arranged in the middle of the mounting plate. The control system is used to adjust the lighting characteristics of different intensities according to the sunlight at different times outside.

[0006] Preferably, the limiting structure includes a pulling block. One side of the pulling block is fixedly connected with a limiting column. A ball is installed at one end of the limiting column. Connecting blocks are symmetrically and fixedly connected to one side of the limiting column. A spring is arranged on one side of the connecting block.

[0007] Preferably, the side of the spring away from the connecting block is disposed inside the mounting plate. A chute is formed on one side of the mounting plate. The limiting post is slidably connected to the chute of the mounting plate. The end of the limiting post away from the pulling block can be engaged with the limiting groove of the U-shaped slider.

[0008] Preferably, the control system includes an illumination module, a data acquisition module, an intelligent algorithm module, an illumination control module, and a scene mode module. The illumination module is configured to provide illumination light according to a control instruction and simulate the spectral characteristics and light change of sunlight. The data acquisition module is configured to acquire user physiological characteristic data and ambient light data. The intelligent algorithm module is configured to construct a personalized model based on the acquired user physiological characteristic data and ambient light data and perform training optimization. The illumination control module is configured to control a control instruction according to the output of the personalized model. The scene mode module is configured to construct a plurality of illumination scene modes and perform mode linkage and adaptive adjustment.

[0009] Preferably, the illumination module includes a full-spectrum LED light source unit and an optical adjustment unit. The full-spectrum LED light source unit is configured to adjust the drive current of each color LED chip according to a control instruction, change the light emission intensity, so that the spectral power distribution after mixing meets the instruction requirements. The full-spectrum LED light source unit is composed of several color LED chips, and each chip is controlled by an independent constant current drive chip through PWM technology to control the brightness. The optical adjustment unit is configured to control a zoom lens according to a control instruction, adjust the focal length according to the lens imaging formula to change the light focusing degree, where is the object distance, is the image distance, is the focal length, and control an astigmatic lens to adjust the rotation angle according to the geometric optics principle to control the light divergence angle.

[0010] Preferably, the data acquisition module includes a physiological feature acquisition unit and an ambient light acquisition unit. The physiological feature acquisition unit includes a piezoresistive intraocular pressure sensor based on MEMS technology, which is used to convert the resistance change caused by intraocular pressure into voltage output through a Wheatstone bridge, acquire intraocular pressure data, and use an avalanche photodiode in cooperation with an optical focusing system to acquire retinal sensitivity data. At the same time, an electrochemical sensor based on a microfluidic chip is used to estimate the tear secretion volume by detecting the ion concentration in tears, measure the potential difference using a differential amplifier, and use a heart rate sensor based on reflectance photoplethysmography to acquire heart rate data. The heart rate is calculated through a peak detection algorithm, and a blood pressure measurement device based on the oscillometric method principle is used to calculate blood pressure by combining oscillometric wave analysis. An immunofluorescence analysis method based on a microfluidic chip is used to calculate the melatonin concentration in tears by detecting the fluorescence intensity, obtaining the user's physiological feature data. The ambient light acquisition unit is used to convert ultraviolet light into photocurrent through a UV photodiode sensor to acquire the ultraviolet intensity data of the environment, and use a miniature fiber optic spectrometer to introduce external light, which is spectroscopically dispersed by a grating and then the light intensity at different wavelengths is detected by a detector array to acquire spectral characteristic data, obtaining ambient light data.

[0011] Preferably, the intelligent algorithm module includes a model construction unit and a training and optimization unit. The model construction unit is used to process the user's physiological feature data through a convolutional neural network and use a recurrent neural network or a long short-term memory network. A decision tree is used to construct decision rules based on health factors with information gain as the criterion, and a Bayesian network establishes node causal relationships through Bayes' theorem, calculates the probability distribution of different physiological indicators under given conditions, and dynamically adjusts the index weights to obtain a personalized model. The health factors include health status, age, and gender. The training and optimization unit is used to divide the user's physiological feature data and ambient light data into a training set, a validation set, and a test set, and use the mean square error as the loss function. The formula is , where n is the number of samples, is the model prediction output, is the true label, and the model parameters are updated. The parameter update formula is , where are the model parameters, is the learning rate, is the gradient of the loss function with respect to the model parameters. The parameters are adjusted according to the performance of the validation set to achieve model convergence and generalization.

[0012] Preferably, the lighting control module includes a light source control unit and an optical control unit. The light source control unit is used to calculate the required luminous intensity of each color LED chip through the personalized model, generate corresponding drive current control signals, and change the luminous intensity by adjusting the drive current of each chip. Among them, the spectral power distribution after mixing is through the formula Calculation, where is the luminous intensity of the th LED chip, is the th LED chip's spectral power distribution. The optical control unit is used to calculate the required focal length of the zoom lens and the required rotation angle of the astigmatic lens through a personalized model, generate corresponding control signals, and obtain control instructions.

[0013] Preferably, the scene mode module includes a mode construction unit and a linkage adjustment unit. The mode construction unit is used to construct different lighting scene modes, including a wake-up mode, a sleep-aid mode, and a stress relief mode. The wake-up mode simulates the natural wake-up process through specific light intensity and color temperature changes. The sleep-aid mode creates a sleep-friendly environment by adjusting the intensity and brightness of different colored lights. The stress relief mode helps the user relieve stress through stable green light and synchronized music rhythm and volume changes. The linkage adjustment unit is used to when is lower than the preset threshold, calculate the time to enter the evening sleep-aid mode in advance through the function , and adjust the spectral distribution of the light output by the lamp according to the spectral changes of the external sunlight, and adaptively adjust the scene mode time and light parameters according to the season change.

[0014] Preferably, the mode construction unit includes a wake-up mode subunit, a sleep-aid mode subunit, and a stress relief mode subunit. The wake-up mode subunit is used to gradually increase the blue light intensity time variation function within a preset time, where is the initial blue light intensity, is the peak blue light intensity at the wake-up moment, t is the number of minutes counted from the start of the preset time, and make the color temperature gradually increase according to the variation function , where is the initial color temperature, is the peak color temperature at the wake-up moment. The sleep-aid mode subunit is used to gradually decrease the blue light intensity within a preset time, and the function is , where is the blue light intensity at the start of the preset time, is the blue light intensity during sleep, and control the amber light intensity to gradually increase, and the function is , where is the initial amber light intensity, is the peak amber light intensity. At the same time, the brightness gradually weakens, and the function is , where is the initial brightness, is the low brightness during sleep. The stress relief mode subunit is used to keep the green light intensity stable and synchronize the music rhythm and volume with the light change through the correlation function.

[0015] Working principle: When using this lamp, install the installation block at a preset position through the installation hole, and then adjust the position of the installation plate to make the U-shaped chute slide on the U-shaped slider of the installation block, driving the inclined plane to contact the ball, making the limit post slide in the installation plate, driving the connecting block to move horizontally, and compressing the spring. When the U-shaped slider slides to the middle of the installation plate, through the setting of the limit groove, the spring drives the connecting block to apply a certain force to the limit post, so that the limit post drives the ball to engage with the limit groove, and thus through the cooperation with the inclined plane, the limit post engages with the limit groove, limiting the installation plate on the U-shaped slider, and the control system adjusts the lighting characteristics of different intensities according to the sunlight at different times outside, providing a suitable lighting environment for users. When disassembly is required, pull the pull block to drive the limit post to slide so that it no longer engages with the limit groove, and then slide the installation plate to remove it.

[0016] The present invention provides a lighting fixture for a simulation lighting system. It has the following beneficial effects: 1. In the present invention, the installation block is installed at the position where it needs to be installed according to requirements through installation. By sliding the U-shaped slider, the installation block slides on the installation plate. Through the cooperation of the limit structure and the inclined plane, the limit structure engages with the limit groove, limiting the installation plate on the U-shaped slider, enabling the lamp to be quickly disassembled and assembled. The control system adjusts the lighting characteristics of different intensities according to the sunlight at different times outside, thereby providing a suitable lighting environment for users, meeting the needs of light under different physiological states of the human body, improving the convenience of lamp installation and maintenance, and reducing the use cost.

[0017] 2. In the present invention, the full-spectrum LED light source unit accurately adjusts the light emission intensity of each color LED chip to restore the natural spectrum. The optical adjustment unit controls the focusing and divergence of light, creating a lighting environment similar to natural sunlight, thereby reducing the adverse effects on the human body's physiology and psychology caused by the difference between artificial lighting and natural light, helping to maintain the normal biological rhythm of the human body, and improving the visual comfort and physical and mental health of users.

[0018] 3. The present invention processes the user's physiological characteristic data by using multiple algorithms through the model construction unit, determines the weights of different physiological indicators in combination with health factors, and the training and optimization unit continuously optimizes the model by dividing the data set, selecting appropriate loss functions and parameter update methods, enabling the lighting fixture to analyze the optimal lighting parameter combinations for different users in different environments, realizing the personalized customization and continuous optimization of the lighting scheme, and providing a lighting experience that better meets the user's own needs.

[0019] 4. The present invention simulates the natural waking process through the waking mode, creates a comfortable sleep environment through the sleep aid mode, and the stress relief mode helps the user relax through the coordination of light and music. At the same time, the linkage adjustment unit automatically adjusts the scene mode time and light parameters according to the intensity of external sunlight, spectral changes, and seasonal changes, enabling the lighting system to adapt to different usage scenarios and environmental changes, making the lighting more intelligent and diverse, and improving the user's usage experience and satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic three-dimensional structure diagram of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 2 It is a schematic internal structure diagram of the mounting plate of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 3 It is a schematic partial structure diagram of the sliding groove of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 4 It is a schematic partial structure diagram of the limiting groove of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 5 It is a schematic partial structure diagram of the mounting block of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 6 It is a schematic partial structure diagram of the limiting post of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 7 It is a schematic partial structure diagram of the threaded groove of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 8 It is a schematic partial structure diagram of the lamp shade of a lighting fixture for a simulation lighting system proposed by the present invention; Figure 9 It is a schematic system architecture diagram of the control system of a lighting fixture for a simulation lighting system proposed by the present invention.

[0021] Among them, 1. mounting plate; 2. U-shaped chute; 3. mounting block; 4. mounting hole; 5. lamp shade; 6. pulling block; 7. U-shaped slider; 8. threaded groove; 9. control system; 10. lighting module; 11. connecting block; 12. spring; 13. limiting post; 14. chute; 15. limiting groove; 16. ball; 17. connecting ring; 18. inclined surface. Detailed implementation manners

[0022] Next, in combination with the drawings of the present invention, the technical solutions of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to the attached Figure 1 - attached Figure 9 , an embodiment of the present invention provides a lighting fixture for a simulation lighting system, including a mounting plate 1. A U-shaped chute 2 is opened on one side of the mounting plate 1. A U-shaped slider 7 is slidably connected in the U-shaped chute 2 of the mounting plate 1. One side of the U-shaped slider 7 is fixedly connected with a mounting block 3. A plurality of mounting holes 4 are uniformly opened on one side of the mounting block 3. The other side of the mounting block 3 is slidably connected to one side of the mounting plate 1. An inclined surface 18 is arranged on one side of the U-shaped slider 7. A limiting groove 15 is opened in the middle of the U-shaped slider 7. A limiting structure is arranged on one side of the mounting plate 1. A threaded groove 8 is opened on one side of the bottom of the mounting plate 1. A connecting ring 17 is threadedly connected in the threaded groove 8 of the mounting plate 1. The bottom of the connecting ring 17 is fixedly connected with a lamp shade 5. A control system 9 is arranged in the middle of the mounting plate 1. The control system 9 is used to adjust the lighting characteristics of different intensities according to the sunlight at different times outside.

[0024] Specifically, through the setting of the U-shaped chute 2, the mounting plate 1 and the U-shaped slider 7 can slide. Through the fixed connection between the U-shaped slider 7 and the mounting block 3, and the sliding of the mounting block 3 and the mounting plate 1, when the U-shaped slider 7 slides, the mounting block 3 is driven to slide on the mounting plate 1. Through the setting of the mounting holes 4, the mounting block 3 can be installed at the position where it needs to be installed according to requirements. Through the cooperation of the limiting structure and the inclined surface 18, the limiting structure is engaged with the limiting groove 15, so that the mounting plate 1 is limited on the U-shaped slider 7. And through the threaded connection between the threaded groove 8 and the connecting ring 17, the mounting plate 1 and the lamp shade 5 are installed, so that the lighting fixture can be quickly disassembled and assembled. And through the operation of the control system 9, the lighting characteristics of different intensities are adjusted according to the sunlight at different times outside, so as to provide a suitable lighting environment for users, thus solving the problem that there is still a large gap between traditional lighting fixtures and natural sunlight and they cannot meet the needs of light for the human body in different physiological states.

[0025] Please refer to the attachedFigure 2 - Attachment Figure 6 The limiting structure includes a pulling block 6. One side of the pulling block 6 is fixedly connected with a limiting column 13. One end of the limiting column 13 is provided with a ball 16. One side of the limiting column 13 is symmetrically and fixedly connected with a connecting block 11. A spring 12 is arranged on one side of the connecting block 11; the side of the spring 12 away from the connecting block 11 is arranged inside the mounting plate 1. A chute 14 is opened on one side of the mounting plate 1. The limiting column 13 is slidably connected in the chute 14 of the mounting plate 1. One end of the limiting column 13 away from the pulling block 6 can be engaged with the limiting groove 15 of the U-shaped slider 7.

[0026] Specifically, through the sliding of the U-shaped slider 7, the inclined surface 18 is driven to contact the ball 16, so that the limiting column 13 slides in the mounting plate 1, drives the connecting block 11 to move horizontally, and compresses the spring 12. When the U-shaped slider 7 slides to the middle of the mounting plate 1, through the setting of the limiting groove 15, the spring 12 drives the connecting block 11 to apply a certain force to the limiting column 13, so that the limiting column 13 drives the ball 16 to be engaged with the limiting groove 15. Thus, through the cooperation with the inclined surface 18, the limiting column 13 is engaged with the limiting groove 15, and the mounting plate 1 is limited on the U-shaped slider 7. When disassembly is required, by pulling the pulling block 6, the limiting column 13 is driven to slide so that it is no longer engaged with the limiting groove 15, and then the mounting plate 1 is slid and removed, thus realizing quick disassembly and assembly.

[0027] Please refer to the attachment Figure 9 The control system 9 includes a lighting module 10, a data acquisition module, an intelligent algorithm module, a lighting control module, and a scene mode module. The lighting module 10 is used to provide lighting light according to the control instruction and simulate the spectral characteristics and light changes of sunlight. The data acquisition module is used to collect user physiological characteristic data and ambient light data. The intelligent algorithm module is used to construct a personalized model based on the collected user physiological characteristic data and ambient light data and perform training and optimization. The lighting control module is used to control the instruction according to the output of the personalized model. The scene mode module is used to construct multiple lighting scene modes and perform mode linkage and adaptive adjustment.

[0028] Specifically, by providing illumination light according to control instructions and simulating the spectral characteristics and light changes of sunlight, a lighting environment similar to natural sunlight is created for users, reducing the adverse effects of the difference between artificial lighting and natural light on the human body's physiology and psychology, achieving a healthier, more comfortable lighting effect that conforms to the human biological rhythm. By collecting users' physiological characteristic data and ambient light data, the current physiological state of the user and the lighting information of the surrounding environment are obtained, which reflects the personalized needs of the user and the environmental changes, providing data support for subsequent precise lighting control. By constructing and training and optimizing a personalized model based on the collected users' physiological characteristic data and ambient light data, the optimal lighting parameter combinations for different users in different environments can be analyzed, enabling the model to continuously adjust and improve according to new data, achieving personalized customization and continuous optimization of the lighting scheme. By controlling the lighting module's light source emission intensity, spectral combination, and the light focusing and divergence states of the optical system according to the output control instructions of the personalized model, the lighting effect is matched with the user's personalized needs and environmental conditions for precise lighting control. By constructing multiple lighting scene modes and performing mode linkage and adaptive adjustment, the lighting system can automatically adjust the lighting parameters according to different usage scenarios (such as waking up, sleeping, relieving stress, etc.) and changes in the external environment (such as sunlight intensity, spectrum, season, etc.), making it more intelligent and diversified, improving the user's usage experience and satisfaction.

[0029] The lighting module 10 includes a full-spectrum LED light source unit and an optical adjustment unit. The full-spectrum LED light source unit is used to adjust the drive current of each color LED chip according to the control instructions, change the emission intensity, so that the spectral power distribution after mixing meets the instruction requirements. And the full-spectrum LED light source unit is composed of several color LED chips, and each chip is controlled in brightness by an independent constant-current drive chip through PWM technology. The optical adjustment unit is used to control the zoom lens according to the control instructions, adjust the focal length according to the lens imaging formula to change the degree of light focusing, where is the object distance, is the image distance, is the focal length, and control the astigmatic lens to adjust the rotation angle according to the geometric optics principle to control the light divergence angle.

[0030] Specifically, after the full-spectrum LED light source unit of the lighting module receives the PWM control signal sent by the light source control unit, the full-spectrum LED light source unit adjusts the drive current of each color LED chip through an independent constant-current drive chip and PWM (pulse width modulation) technology, changes the emission intensity, and makes the spectral power distribution after mixing meet the instruction requirements according to the formula to simulate the spectral characteristics of sunlight.

[0031] After receiving the control signal sent by the optical control unit, the optical adjustment unit adjusts the focal length of the zoom lens according to the lens imaging formula to control the zoom lens to adjust the focal length, change the degree of light focusing, and control the rotation angle of the astigmatic lens according to the principles of geometric optics to control the light divergence angle, so as to create a lighting environment similar to natural sunlight and reduce the adverse effects of artificial lighting on the human body's physiology and psychology.

[0032] The data acquisition module includes a physiological feature acquisition unit and an ambient light acquisition unit. The physiological feature acquisition unit includes a piezoresistive intraocular pressure sensor based on MEMS technology, which is used to convert the resistance change caused by intraocular pressure into voltage output through a Wheatstone bridge, collect intraocular pressure data, and collect retinal sensitivity data by using an avalanche photodiode in cooperation with an optical focusing system. At the same time, an electrochemical sensor based on a microfluidic chip calculates the tear secretion volume by detecting the ion concentration in tears, measures the potential difference by using a differential amplifier, and a heart rate sensor using reflectance photoplethysmography to collect heart rate data, calculates the heart rate through a peak detection algorithm, and a blood pressure measurement device using the oscillometric method principle, combines oscillometric wave analysis to calculate blood pressure, and uses immunofluorescence analysis based on a microfluidic chip to calculate the melatonin concentration in tears by detecting the fluorescence intensity to obtain the user's physiological feature data. The ambient light acquisition unit is used to convert ultraviolet light into photocurrent through an ultraviolet photodiode sensor to collect the ultraviolet intensity data of the environment, and uses a miniature fiber optic spectrometer to introduce external light, and after grating spectroscopy, the detector array detects the light intensity of different wavelengths to collect spectral characteristic data to obtain ambient light data.

[0033] Specifically, the piezoresistive intraocular pressure sensor based on MEMS technology in the physiological feature acquisition unit is closely attached to the user's eye area. When the intraocular pressure changes, the piezoresistive structure inside the sensor will generate corresponding resistance changes. This resistance change is converted into voltage output through a Wheatstone bridge, and after the analog voltage signal is converted into a digital signal through an analog-to-digital conversion circuit, it is transmitted to the intelligent algorithm module through a low-power Bluetooth module at regular intervals (such as every 5 minutes); the avalanche photodiode, in cooperation with the optical focusing system, emits light of specific wavelength and intensity to the user's eyes, and then receives the light reflected back by the eyes. According to the intensity and characteristics of the reflected light, the sensitivity of the retina to different lights is analyzed. The collected data is transmitted to the intelligent algorithm module in real time after signal amplification and filtering processing.

[0034] The electrochemical sensor based on a microfluidic chip detects the ion concentration in tears by making contact with the user's eye. The microfluidic chip introduces tears into the detection area, and the electrochemical sensor generates corresponding potential changes by detecting the ion concentration. A differential amplifier is used to measure the potential difference, which is converted into relevant data on tear secretion volume. After calibration and processing, the data is transmitted to the intelligent algorithm module every 10 minutes; The heart rate sensor using reflectance photoplethysmography is usually integrated into wearable devices (such as smart bracelets). The sensor emits light of a specific wavelength to irradiate the skin, and based on the absorption and reflection characteristics of hemoglobin in the blood for light, it detects changes in blood volume. Through a peak detection algorithm, heart rate information is extracted from the collected signals, and the heart rate data is transmitted to the control system in real time via Bluetooth.

[0035] The blood pressure measurement device based on the oscillometric principle can be a small device integrated into a smart bracelet or armband. The device compresses blood vessels through an inflatable cuff and then slowly deflates it to detect the oscillatory waves generated by changes in blood pressure inside the blood vessels. Combining with an oscillatory wave analysis algorithm, blood pressure data such as systolic blood pressure and diastolic blood pressure are calculated. The blood pressure data is collected every 30 minutes and transmitted to the intelligent algorithm module via wireless communication; The immunofluorescence analysis method based on a microfluidic chip collects a tear sample from the user and conducts an immune reaction inside the microfluidic chip. After the fluorescent label binds to melatonin in the tears, the concentration of melatonin in the tears is calculated by detecting the fluorescence intensity. The collected melatonin concentration data is processed and then transmitted to the intelligent algorithm module every hour.

[0036] For the measurement of intraocular pressure, a scaled-down version of non-contact intraocular pressure measurement technology can also be integrated into portable devices such as smart bracelets or glasses. It measures the intraocular pressure by emitting specific light waves and based on the characteristics of the reflected light waves, avoiding the inconvenience and hygiene problems of traditional contact intraocular pressure measurement. In this device, various sensors are closely combined using flexible circuit and micro-nano manufacturing technologies, and the collected data is transmitted to the control system of the lighting fixture in real time via low-power Bluetooth or other wireless communication technologies.

[0037] Moreover, an environmental monitoring base station can be set up indoors, integrating an ultraviolet photodiode sensor and a microfiber spectrometer into the base station. The base station is connected to the lighting fixture control system via wireless communication to collect ambient light data in real time. At the same time, the base station can also be equipped with some non-contact physiological feature collection modules, such as a heart rate and respiration device based on millimeter-wave radar technology. It emits millimeter waves and receives the signals reflected by the human body, and uses the Doppler effect to analyze the heart rate and respiration frequency of the human body. Without the user wearing additional devices, it can collect partial physiological feature data within a certain range, complementing the data collected by wearable devices and providing more comprehensive data support for lighting control.

[0038] The ambient light acquisition unit is installed on the lamp housing or a suitable position indoors through a UV photodiode sensor, which converts the received ultraviolet light into photocurrent in real time. The photocurrent passes through an amplification and conversion circuit and is converted into corresponding ultraviolet intensity data. After calibration and filtering processing, the data is transmitted to the intelligent algorithm module in real time. The external light is introduced into the instrument through an optical fiber by a miniature fiber optic spectrometer. After being dispersed by a grating, light of different wavelengths is detected by a detector array. The detector array converts the light intensity into an electrical signal. After processing and analysis, the spectral characteristic data of the ambient light is obtained. The spectral characteristic data is collected every 15 minutes and transmitted to the intelligent algorithm module.

[0039] The intelligent algorithm module includes a model construction unit and a training and optimization unit. The model construction unit is used to process the user's physiological characteristic data through a convolutional neural network and adopt a recurrent neural network or a long short-term memory network. A decision tree is used to construct decision rules based on health factors with information gain as the criterion. A Bayesian network establishes node causal relationships through Bayes' theorem and calculates the probability distribution of different physiological indicators under given conditions, dynamically adjusting the index weights to obtain a personalized model. The health factors include health status, age, and gender. The training and optimization unit is used to divide the user's physiological characteristic data and ambient light data into a training set, a validation set, and a test set, and uses the mean squared error as the loss function. The formula is , where n is the number of samples, is the model prediction output, is the true label, and the model parameters are updated. The parameter update formula is , where are the model parameters, is the learning rate, is the gradient of the loss function with respect to the model parameters. The parameters are adjusted according to the performance of the validation set to achieve model convergence and generalization.

[0040] Specifically, after receiving the user's physiological characteristic data and ambient light data from the data acquisition module, the intelligent algorithm module first classifies and preprocesses the user's physiological characteristic data through the model construction unit. For image data (such as images related to retinal sensitivity), a convolutional neural network is used for feature extraction to extract feature vectors related to retinal health and sensitivity. For time series data (such as heart rate and blood pressure data), a recurrent neural network or a long short-term memory network is used for analysis to mine the changing trends and patterns in the data. Decision trees construct decision rules based on health factors such as the user's health status, age, and gender. For example, for users who are older and have eye diseases, more attention will be paid to reducing the harm of blue light to the eyes during lighting adjustment. Bayesian networks calculate the probability distribution of different physiological indicators under given conditions based on the collected data and dynamically adjust the weights of each indicator in the model. For example, when the user's intraocular pressure is high, the weight of intraocular pressure data in the model will be increased to more accurately adjust the lighting parameters. Through the above methods, a personalized model suitable for the user is constructed, and this model can reflect the user's lighting requirements under different environments and physiological states.

[0041] The training and optimization unit divides the collected user's physiological characteristic data and ambient light data into a training set, a validation set, and a test set. The mean squared error is used as the loss function to evaluate the error between the predicted result of the model and the actual demand. The gradient descent algorithm (such as stochastic gradient descent) is used to update the model parameters, and the formula is , where are the model parameters, is the learning rate, is the gradient of the loss function with respect to the model parameters. During the training process, the hyperparameters of the model (such as the learning rate, the number of network layers, etc.) are adjusted according to the performance of the validation set to ensure the convergence and generalization ability of the model. Newly collected data is regularly used to update and train the model so that the model can adapt to the changes in the user's physiological state and environment, and continuously improve the accuracy and reliability of the model.

[0042] The lighting control module includes a light source control unit and an optical control unit. The light source control unit is used to calculate the required luminous intensity of each color LED chip through the personalized model, generate the corresponding drive current control signal, and change the luminous intensity by adjusting the drive current of each chip, where the mixed spectral power distribution is calculated by the formula , where is the luminous intensity of the th LED chip, is the spectral power distribution of the th LED chip. The optical control unit is used to calculate the required focal length of the zoom lens and the required rotation angle of the astigmatic lens through the personalized model, generate the corresponding control signal, and obtain the control instruction.

[0043] Specifically, the lighting control module, based on the personalized model result output by the intelligent algorithm module, calculates the required luminous intensity of each color LED chip according to the personalized model through the light source control unit. Through the independent constant current drive chip and PWM technology, the corresponding PWM control signal is generated. For example, when the model predicts that the user needs to simulate the early morning sunlight, the drive current of the blue and red light chips is increased to increase the luminous intensity of the blue and red lights, and at the same time, the luminous intensity of other color chips is adjusted so that the mixed spectrum is closer to the spectral characteristics of the early morning sunlight. The duty cycle of the control signal is precisely adjusted according to the calculated luminous intensity to ensure that the brightness of each LED chip can accurately reach the value required by the model.

[0044] The optical control unit calculates the required focal length of the zoom lens and the required rotation angle of the astigmatic lens according to the personalized model. According to the lens imaging formula, the focal length adjustment amount of the zoom lens is calculated. A control signal is generated through the motor drive circuit to drive the motor of the zoom lens to act, realizing precise adjustment of the focal length. For the astigmatic lens, according to the divergence requirement of the light, the required rotation angle is calculated. The astigmatic lens is rotated to the specified angle by a stepper motor to control the divergence degree of the light.

[0045] The scene mode module includes a mode construction unit and a linkage adjustment unit. The mode construction unit is used to construct different lighting scene modes, including a wake-up mode, a sleep-aid mode, and a stress relief mode. The wake-up mode simulates the natural wake-up process through specific light intensity and color temperature changes. The sleep-aid mode creates a sleep-friendly environment by adjusting the intensity and brightness of different colored lights. The stress relief mode helps the user relieve stress through stable green light and synchronized music rhythm and volume changes. The linkage adjustment unit is used to , when is lower than the preset threshold, the time to enter the evening sleep-aid mode in advance is calculated through a function , and according to the spectral change of the external sunlight, the spectral distribution of the light output by the lamp is adjusted through an adjustment function, and the scene mode time and light parameters are adaptively adjusted according to the season change.

[0046] The mode construction unit includes a wake-up mode subunit, a sleep-aid mode subunit, and a stress relief mode subunit. The wake-up mode subunit is used to gradually increase the blue light intensity time variation function within a preset time, where is the initial blue light intensity, is the peak blue light intensity at the wake-up moment, t is the number of minutes counted from the start of the preset time, and the color temperature is gradually increased according to the variation function where is the initial color temperature, is the peak color temperature at the wake-up moment, and the sleep-aid mode sub-unit is used to control the blue light intensity to gradually decrease within a preset time, and the function is , where is the blue light intensity at the start of the preset time, is the blue light intensity during sleep, and control the amber light intensity to gradually increase, and the function is , where is the initial amber light intensity, is the peak amber light intensity, and at the same time the brightness gradually weakens, and the function is , where is the initial brightness, is the low brightness during sleep. The stress relief mode sub-unit is used to keep the green light intensity stable and synchronize the music rhythm and volume with the light change through a correlation function.

[0047] Specifically, in the actual application scenario, the scene mode module of the lamp works in coordination with the mode construction unit and the linkage adjustment unit to provide users with a diverse and adaptive lighting experience. 30 minutes before the preset wake-up time (this preset time can be set according to user habits, and the default setting is 30 minutes), the wake-up mode sub-unit starts to work. The blue light chip in the full-spectrum LED light source unit of the lamp gradually increases the light-emitting intensity according to the blue light intensity change function with time . Assuming the initial blue light intensity is set to 100 cd / m² (candela per square meter, a unit for measuring light intensity), and the peak blue light intensity at the wake-up moment is set to 500 cd / m². When , the blue light intensity is the initial value of 100 cd / m². As the time t increases, the blue light intensity gradually rises and reaches 500 cd / m² at minutes. At the same time, the color temperature also gradually increases according to the change function . For example, the initial color temperature is 2700K (Kelvin, a unit for measuring color temperature), and the peak color temperature at the wake-up moment is 4000K. Within these 30 minutes, the color temperature gradually rises from 2700K to 4000K. During this process, the optical adjustment unit keeps the focusing and divergence states of the light relatively stable to ensure that the entire space can uniformly receive the gradually stronger, brighter and color temperature-rising light, simulating the change of light at sunrise in the natural environment and stimulating the human biological clock to help users wake up naturally.

[0048] When entering the preset sleep aid time period (for example, 1-2 hours before bedtime, which can also be set in the APP, with a default of 1.5 hours), the sleep aid mode sub-unit is activated. The blue light intensity decreases gradually according to the function If the blue light intensity at the start of the preset time is 300 cd / m² and the blue light intensity during sleep is 50 cd / m², as time t increases starting from 0, the blue light intensity decreases gradually and reaches 50 cd / m² at t = 120 minutes. At the same time, the amber light intensity increases gradually according to the function Assuming the initial amber light intensity is 50 cd / m² and the peak amber light intensity is 200 cd / m², within these 120 minutes, the amber light intensity gradually rises from 50 cd / m² to 200 cd / m². In addition, the overall brightness weakens gradually according to the function If the initial brightness is 300 lx (lux, the unit for measuring illuminance) and the low brightness during sleep is 30 lx, then the brightness gradually decreases from 300 lx to 30 lx within 120 minutes. During this process, the optical adjustment unit adjusts the focusing and divergence of the light, making the light more gentle and evenly distributed in the space, creating a comfortable environment conducive to sleep.

[0049] When the user manually selects the stress relief mode or the system determines that the user is in a stressed state based on the user's physiological data (such as heart rate, blood pressure, etc.), the stress relief mode sub-unit starts to work. The full-spectrum LED light source unit of the lamp keeps the green light intensity stable at a specific value that has been verified through a large number of experiments to effectively relieve stress, such as 300 cd / m². At the same time, the lamp is linked with devices such as smart speakers (connected via Bluetooth or Wi-Fi), and the music rhythm and volume are synchronized with the light changes through a pre-set association function. When it is detected that the user is under greater stress, the green light intensity slightly increases, and the association function controls the music rhythm to speed up and the volume to increase; when the user's stress is relieved, the green light intensity returns to stability, and the music rhythm and volume are adjusted accordingly to help the user relieve stress.

[0050] The linkage adjustment unit is built-in with an ambient light sensor for real-time monitoring of the intensity and spectral changes of external sunlight. When the intensity of external sunlight is lower than the preset threshold (the preset threshold can be set according to different regions, seasons, and user needs, with a default setting of 100 lx), the linkage adjustment unit calculates the time to enter the evening sleep aid mode in advance through a preset function For example, if the current time is 7 pm and the intensity of external sunlight is 80 lx, and it is calculated through the function that it is necessary to enter the sleep aid mode 15 minutes in advance, then the lamp automatically switches to the sleep aid mode at 7:15 pm.

[0051] Meanwhile, the linkage adjustment unit adjusts the spectral distribution of the light output by the lamp through an adjustment function according to the spectral changes of the external sunlight. Among them, represents the wavelength of light, represents the spectral distribution of the external sunlight. On cloudy days, the proportion of blue light components in the spectrum of the external sunlight decreases relatively. The adjustment function will increase the output proportion of blue light of the lamp to maintain the comfort of the indoor light and the normal demand of the human body for light.

[0052] In addition, the linkage adjustment unit can also adaptively adjust the scene mode time and light parameters according to seasonal changes. In winter, the day is short and the night is long. The linkage adjustment unit will appropriately advance the start time of the wake-up mode, delay the end time of the sleep assistance mode, and increase the color temperature of the light to create a warm feeling; in summer, the day is long and the night is short. The start time of the wake-up mode will be postponed, the end time of the sleep assistance mode will be advanced, and at the same time, the color temperature of the light will be lowered to create a cool atmosphere. The judgment of seasonal changes can be achieved by obtaining the system time and combining geographical location information. According to the typical sunshine duration and temperature characteristics of different seasons, the corresponding scene mode time and light parameter adjustment strategies are preset.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lighting fixture for a simulation lighting system, comprising a mounting plate (1), characterized in that: One side of the mounting plate (1) is provided with a U-shaped chute (2). A U-shaped slider (7) is slidably connected in the U-shaped chute (2) of the mounting plate (1). One side of the U-shaped slider (7) is fixedly connected with a mounting block (3). A plurality of mounting holes (4) are evenly formed in one side of the mounting block (3). The other side of the mounting block (3) is slidably connected to one side of the mounting plate (1). One side of the U-shaped slider (7) is provided with an inclined surface (18). A limiting groove (15) is formed in the middle of the U-shaped slider (7). A limiting structure is arranged on one side of the mounting plate (1). A threaded groove (8) is formed in one side of the bottom of the mounting plate (1). A connecting ring (17) is threadedly connected in the threaded groove (8) of the mounting plate (1). A lamp shade (5) is fixedly connected to the bottom of the connecting ring (17). A control system (9) is arranged in the middle of the mounting plate (1). The control system (9) is used to adjust the illumination characteristics of different intensities according to the sunlight at different times outside.

2. The lighting fixture for a simulation-type lighting system according to claim 1, wherein: The limiting structure includes a pull block (6). A limiting column (13) is fixedly connected to one side of the pull block (6). A ball (16) is installed at one end of the limiting column (13). Connecting blocks (11) are symmetrically and fixedly connected to one side of the limiting column (13). A spring (12) is arranged on one side of the connecting block (11).

3. The lighting fixture for a simulation type lighting system according to claim 2, characterized in that: The side of the spring (12) away from the connecting block (11) is arranged inside the mounting plate (1). A chute (14) is formed in one side of the mounting plate (1). The limiting column (13) is slidably connected in the chute (14) of the mounting plate (1). The end of the limiting column (13) away from the pull block (6) can be engaged with the limiting groove (15) of the U-shaped slider (7).

4. The lighting fixture for a simulation type lighting system according to claim 1, characterized in that: The control system (9) includes an illumination module (10), a data acquisition module, an intelligent algorithm module, an illumination control module, and a scene mode module. The illumination module (10) is used to provide illumination light according to a control instruction and simulate the spectral characteristics and illumination changes of sunlight. The data acquisition module is used to acquire user physiological characteristic data and ambient light data. The intelligent algorithm module is used to construct a personalized model based on the acquired user physiological characteristic data and ambient light data and perform training and optimization. The illumination control module is used to control the illumination according to the output control instruction of the personalized model. The scene mode module is used to construct a variety of illumination scene modes and perform mode linkage and adaptive adjustment.

5. The lighting fixture for a simulation-type lighting system according to claim 4, characterized in that: The lighting module (10) includes a full-spectrum LED light source unit and an optical adjustment unit. The full-spectrum LED light source unit is used to adjust the drive current of each color LED chip according to a control instruction, change the light emission intensity, so that the spectral power distribution after mixing meets the instruction requirements. The full-spectrum LED light source unit is composed of several color LED chips, and each chip is controlled in brightness by an independent constant-current drive chip through PWM technology. The optical adjustment unit is used to control a zoom lens according to a control instruction, adjust the focal length according to the lens imaging formula to change the degree of light focusing, where is the object distance, is the image distance, is the focal length, and control an astigmatic lens to adjust the rotation angle according to the principles of geometric optics to control the light divergence angle.

6. The lighting fixture for a simulation type lighting system according to claim 4, wherein: The data acquisition module includes a physiological feature acquisition unit and an ambient light acquisition unit. The physiological feature acquisition unit includes a piezoresistive intraocular pressure sensor based on MEMS technology, which is used to convert the resistance change caused by intraocular pressure into voltage output through a Wheatstone bridge, acquire intraocular pressure data, and use an avalanche photodiode in cooperation with an optical focusing system to acquire retinal sensitivity data. At the same time, an electrochemical sensor based on a microfluidic chip is used to estimate the tear secretion volume by detecting the ion concentration in tears, measure the potential difference using a differential amplifier, and a heart rate sensor using reflectance photoplethysmography is used to acquire heart rate data and calculate the heart rate through a peak detection algorithm. In addition, a blood pressure measurement device based on the oscillometric method principle is used to calculate blood pressure by combining oscillometric wave analysis, and an immunofluorescence analysis method based on a microfluidic chip is used to calculate the melatonin concentration in tears by detecting the fluorescence intensity to obtain the user's physiological feature data. The ambient light acquisition unit is used to convert ultraviolet light into photocurrent through a UV photodiode sensor to acquire the ultraviolet intensity data of the environment, and a miniature fiber optic spectrometer is used to introduce external light, which is spectrally dispersed by a grating and then the light intensity at different wavelengths is detected by a detector array to acquire spectral characteristic data to obtain ambient light data.

7. The lighting fixture for a simulation-type lighting system according to claim 4, characterized in that: The intelligent algorithm module includes a model construction unit and a training optimization unit. The model construction unit is used to process user physiological feature data through a convolutional neural network and adopt a recurrent neural network or a long short-term memory network, and use a decision tree to construct decision rules based on health factors with information gain as the criterion. A Bayesian network establishes node causal relationships through Bayes' theorem, calculates the probability distribution of different physiological indicators under given conditions, dynamically adjusts the indicator weights, and obtains a personalized model. The health factors include health status, age, and gender. The training optimization unit is used to divide the user physiological feature data and environmental light data into a training set, a validation set, and a test set, use the mean square error as the loss function, and the formula is , where n is the number of samples, is the model prediction output, is the true label, and the model parameters are updated. The parameter update formula is , where are the model parameters, is the learning rate, is the gradient of the loss function with respect to the model parameters. The parameters are adjusted according to the performance of the validation set to achieve model convergence and generalization.

8. The lighting fixture for a simulation-type lighting system according to claim 4, characterized in that: The lighting control module includes a light source control unit and an optical control unit. The light source control unit is used to calculate the required luminous intensity of each color LED chip through a personalized model, generate corresponding drive current control signals, and change the luminous intensity by adjusting the drive current of each chip, where the spectral power distribution after mixing is calculated by the formula , where is the luminous intensity of the th LED chip, is the spectral power distribution of the th LED chip. The optical control unit is used to calculate the required focal length of the zoom lens and the required rotation angle of the astigmatic lens through a personalized model, generate corresponding control signals, and obtain control instructions.

9. The lighting fixture for a simulation type lighting system according to claim 4, wherein: The scene mode module includes a mode construction unit and an interlock adjustment unit. The mode construction unit is used to construct different lighting scene modes, including a wake-up mode, a sleep-aid mode, and a stress relief mode. The wake-up mode simulates the natural wake-up process through specific light intensity and color temperature changes. The sleep-aid mode creates a sleep-conducive environment by adjusting the intensity and brightness of different colored lights. The stress relief mode helps users relieve stress through stable green light and synchronized music rhythm and volume changes. The interlock adjustment unit is used to when is lower than the preset threshold, calculate the time to enter the evening sleep-aid mode in advance through a function and, according to the spectral change of the external sunlight, adjust the spectral distribution of the light output by the lamp through an adjustment function, and adaptively adjust the scene mode time and light parameters according to the seasonal change.

10. The lighting fixture for a simulation-type lighting system according to claim 9, characterized in that: The mode construction unit includes a wake-up mode sub-unit, a sleep-aid mode sub-unit, and a stress relief mode sub-unit. The wake-up mode sub-unit is used to increase the blue light intensity gradually within a preset time, where time variation function it gradually increases, and the initial blue light intensity, is the peak value of the blue light intensity at the wake-up moment, t is the number of minutes counted from the start of the preset time, and the color temperature gradually increases according to the variation function where is the initial color temperature, is the peak value of the color temperature at the wake-up moment. The sleep-aid mode sub-unit is used to control the blue light intensity to gradually decrease within a preset time, and the function is where is the blue light intensity at the start of the preset time, is the blue light intensity during sleep, and it controls the amber light intensity to gradually increase, and the function is where is the initial amber light intensity, is the peak value of the amber light intensity. At the same time, the brightness gradually weakens, and the function is where is the initial brightness, is the low brightness during sleep. The stress relief mode sub-unit is used to keep the green light intensity stable and synchronize the music rhythm and volume with the light change through a correlation function.

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