All-weather lighting system and method

Abstract

The invention discloses an all-weather lighting system and method, belongs to the technical field of lighting, and solves the problems that an existing lighting system is fixed in spectrum and difficult to match with natural spectrum. The system comprises an outdoor environment parameter acquisition module, an intelligent control module, a spectrum adjustment driving module, a COB integrated light source module and an extensible man-machine interaction and communication module. According to the corresponding lighting method, dynamic matching is achieved through the four steps of parameter collection, instruction generation, current adjustment and spectrum output, the spectrum change trend can be predicted through the algorithm, an adjustment instruction 0-10 minutes ahead of time is generated, and smooth transition of the spectrum is guaranteed; the system covers a wide spectrum range, realizes accurate simulation of natural light, has the functions of real-time regulation and control, high precision, multiple modes and remote control, can provide a healthy and comfortable indoor light environment, is outstanding in reliability and usability, is suitable for families, offices and other scenes, and provides a healthy and comfortable light environment.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to an all-weather lighting system and method capable of dynamically matching the outdoor spectrum. Background Technology

[0002] Traditional indoor lighting systems primarily focus on basic parameters such as illuminance and color temperature, with fixed spectral compositions that differ significantly from natural sunlight. Prolonged exposure to artificial lighting with a fixed spectrum can negatively impact human circadian rhythms, mood, and health. While the concept of healthy lighting has gained popularity, some lighting products offering adjustable color temperatures and simulating sunrise and sunset have emerged. However, their spectral adjustment range is limited (mainly concentrated in the visible light range), and they lack dynamic correlation with the real outdoor natural environment (including ultraviolet, infrared, and full-spectrum visible light), failing to achieve true "all-weather" natural light simulation. Furthermore, existing systems do not adequately consider the long-term effects of factors such as seasons and time on the natural spectrum. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing lighting systems, such as fixed spectra, inability to dynamically match natural spectra, and low level of intelligence. This invention provides an all-weather weather lighting system and method. This system can collect outdoor broad-spectrum solar spectrum and environmental parameters in real time, intelligently generate control commands, and drive the integrated light source to output a composite spectrum that is highly matched with the outdoor real-time spectrum or a preset solar term spectrum model.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An all-weather weather lighting system, comprising: The outdoor environmental parameter acquisition module is used to collect real-time outdoor solar spectrum information, ambient temperature, ambient humidity and outdoor illuminance data in the 260nm to 1200nm band. The intelligent control module is connected to the outdoor environmental parameter acquisition module. It has a pre-stored reference spectral model associated with time and solar terms. It is used to receive the parameter data and analyze and process it through the built-in spectral simulation algorithm to generate spectral adjustment commands. A spectral adjustment drive module, connected to the intelligent control module, is used to receive the spectral adjustment command and output multiple independent and controllable drive currents; The COB integrated light source module, connected to the spectral adjustment and driving module, includes an ultraviolet band chip, a visible light band chip, and an infrared band chip integrated on the same substrate. Under the control of the spectral adjustment and driving module, it outputs a composite spectrum containing ultraviolet, visible, and infrared bands that matches the outdoor real-time spectrum or a preset spectral model.

[0005] Furthermore, the outdoor environmental parameter acquisition module includes a spectral sensor with a detection band covering 260-1200nm, a temperature sensor, a humidity sensor, and an illuminance sensor. The sampling frequency of the spectral sensor is not less than 1 time / minute to ensure the real-time nature of the data.

[0006] Furthermore, the built-in spectral simulation algorithm of the intelligent control module can predict the trend of spectral changes based on real-time collected solar spectral information and pre-stored reference spectral data of the twenty-four solar terms, and generate spectral adjustment instructions 0-10 minutes in advance to achieve a smooth transition of the lighting spectrum.

[0007] Furthermore, the ultraviolet band chip in the COB integrated light source module has an output wavelength range of 260-420nm; the visible light band chip includes chip groups that output red light, green light and blue light respectively, wherein the red light chip outputs a wavelength of 620-630nm, the green light chip outputs a wavelength of 520-530nm, and the blue light chip outputs a wavelength of 450-470nm; the infrared band chip outputs a wavelength of 850-1200nm.

[0008] Furthermore, to optimize the spectral continuity in the visible light band, the surface of the blue light chip in the visible light band chip is coated with a fluorescent adhesive. The fluorescent adhesive contains at least one phosphor selected from yttrium dodecanoate aluminum hexatritium, strontium oxide, calcium oxide, and molybdenum trioxide, which is used to generate white light under blue light excitation and mix with the output light of the red and green light chips to form a continuous visible light spectrum.

[0009] Furthermore, the spectral adjustment drive module can independently adjust the drive current of the five chips (ultraviolet, red, green, blue, and infrared) in the COB integrated light source module. The single-channel current adjustment range is 0-150mA, and the adjustment accuracy can reach ±1mA, thus achieving fine-tuning of the spectrum.

[0010] Furthermore, to ensure the reliability and heat dissipation performance of the COB integrated light source module, its substrate is a metal conductive substrate or a ceramic insulating substrate, with copper foil interconnect circuits etched on its surface and nickel-palladium-gold bonding pre-welding treatment, wherein the nickel layer thickness is ≥160μ inches, the palladium layer thickness is ≥0.5μ inches, and the gold layer thickness is ≥2μ inches.

[0011] Furthermore, the system also includes a human-computer interaction module connected to the intelligent control module, which allows users to select a standard 24-hour spectral mode, a solar term spectral mode, or a custom spectral mode, thereby enhancing the ease of use and flexibility of the system.

[0012] Furthermore, the system also includes a communication module connected to the intelligent control module, supporting at least one of WiFi, Bluetooth, and ZigBee communication protocols, for data interaction and remote control with mobile terminals or smart home systems.

[0013] Based on the same inventive concept, the present invention also provides an all-weather weather lighting method, applied to any of the all-weather weather lighting systems described above, characterized by comprising the following steps: S1: Real-time acquisition of outdoor solar spectrum and environmental parameters via outdoor environmental parameter acquisition module; S2: The intelligent control module calculates and generates the target spectral adjustment command based on the acquired parameters and the pre-stored spectral model; S3: The spectral adjustment drive module independently adjusts the current of each band chip in the COB integrated light source module according to the instructions. S4: Enable the COB integrated light source module to output a composite spectrum that dynamically matches the outdoor real-time spectrum or a preset spectral model.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Full-spectrum dynamic simulation: The system covers a wide spectral range from ultraviolet (260nm) to infrared (1200nm), which can more completely simulate the natural solar spectrum and provide a healthier indoor light environment.

[0015] 2. Real-time sensing and intelligent control: By collecting outdoor spectrum and environmental parameters at high frequency, and combining pre-stored models and intelligent algorithms, the lighting spectrum and outdoor natural light are synchronized in real time or dynamically changed according to a preset model.

[0016] 3. High precision and high reliability: The use of multi-channel independent current drive and COB integrated packaging technology enables precise and stable control of the spectrum, and the special process treatment of the substrate ensures the long-term reliability of the light source.

[0017] 4. Multifunctionality and ease of use: It integrates multiple working modes (real-time, energy-saving, and custom) and remote communication functions to meet users' diverse and convenient control needs.

[0018] 5. Predictive adjustment: The spectral simulation algorithm has trend prediction function, which can realize smooth spectral transition, avoid abrupt changes in the lighting environment, and improve comfort. Attached Figure Description

[0019] Figure 1 This is a block diagram of the overall structure of the all-weather lighting system of the present invention.

[0020] Figure 2This is a schematic diagram of the chip layout of the COB integrated light source module of the present invention.

[0021] Figure 3 This is a flowchart illustrating the all-weather weather lighting method of the present invention.

[0022] In the diagram: 1-Outdoor environmental parameter acquisition module, 11-Spectrum sensor, 12-Temperature sensor, 13-Humidity sensor, 14-Illuminance sensor, 2-Intelligent control module, 3-Spectrum adjustment drive module, 4-COB integrated light source module, 41-Substrate, 42-Ultraviolet band chip, 43-Red light chip, 44-Green light chip, 45-Blue light chip, 46-Infrared band chip, 47-Fluorescent adhesive, 5-Human-computer interaction module, 6-Communication module, 7-Mobile terminal, 8-Smart home system. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0024] Example 1: System Hardware Composition and Connection This embodiment details the specific selection, key parameters, and interconnection methods of each module in the all-weather lighting system.

[0025] Outdoor Environmental Parameter Acquisition Module 1: This module is responsible for real-time acquisition of outdoor full-band spectrum and key environmental parameters.

[0026] Spectral sensor 11: A broadband spectral sensor 11 with a detection range covering 260nm to 1200nm is selected, such as a miniature spectrometer module with a photodiode array and a grating spectral dispersive structure. This sensor operates at a sampling frequency of not less than 1 time / minute and outputs light intensity distribution data for each wavelength.

[0027] Temperature sensor 12: Selected digital temperature sensor 12DS18B20, measuring range -55℃ to +125℃, accuracy ±0.5℃.

[0028] Humidity sensor 13: The selected digital humidity sensor is 13SHT30, with a measurement range of 0-100%RH and an accuracy of ±2%RH.

[0029] Illuminance sensor 14: The ambient light sensor BH1750 is selected, with a measurement range of 0-65535 lux and an accuracy of ±1 lux.

[0030] Connection method: The above sensors are connected to the main processor of the intelligent control module 2 via an I²C serial bus to achieve synchronous data acquisition and transmission.

[0031] Intelligent Control Module 2: This module is the computing and decision-making center of the system.

[0032] Main controller: The high-performance ARM Cortex-M7 core microcontroller STM32H743 is selected. It has sufficient computing power and storage space to run complex algorithms and store spectral models.

[0033] Spectral model storage: A "time-solar term reference spectral database" is pre-stored in the controller's flash memory. This database is built based on long-term meteorological and spectral observation data and contains standard solar spectral curves for typical daytime times (e.g., hourly) under the twenty-four solar terms.

[0034] Core Algorithm: Built-in "Spectral Simulation and Prediction Algorithm". This algorithm takes real-time collected outdoor spectrum, temperature, humidity, and illuminance as input, combines the current time, solar term, and pre-stored benchmark models, and calculates the possible change trend of outdoor spectrum in the next 0-10 minutes through a prediction engine based on time series analysis (such as ARIMA model) or lightweight neural network (such as LSTM), and generates advanced spectral adjustment instructions accordingly.

[0035] Spectrum adjustment drive module 3: This module is responsible for accurately executing control commands.

[0036] Driver chip: The five-channel constant current LED driver chip TPS92661 is selected. Each channel can provide an independently adjustable drive current of 0-150mA with an adjustment accuracy of ±1mA.

[0037] Control interface: Receives spectrum adjustment commands (usually target current values ​​for each channel) sent from the intelligent control module 2 via UART or PWM interface, and converts them into corresponding constant current outputs.

[0038] COB Integrated Light Source Module 4: This module is the final light source of the system and adopts multi-chip COB integrated packaging technology.

[0039] Substrate 41: A high thermal conductivity aluminum nitride ceramic substrate 41 is selected, and the surface is etched with copper foil circuit patterns. To enhance the solderability and reliability of the pads, the circuit surface is treated with electroless nickel plating (Ni, thickness ≥160μ inch) and electroless palladium-gold plating (Pd, thickness ≥0.5μ inch; Au, thickness ≥2μ inch).

[0040] Chip integration: Ultraviolet band chip 42: An ultraviolet LED chip with a main emission wavelength of 385nm, covering the UVA band.

[0041] Visible light band chipset: Red light chip 43: emission wavelength 625nm.

[0042] Green LED chip 44: Emits a main wavelength of 525nm.

[0043] Blue LED chip 45: emits a main wavelength of 455nm. A special fluorescent adhesive 47 is dotted and coated onto its surface.

[0044] Infrared band chip 46: An infrared LED chip that emits a main wavelength of 850nm.

[0045] Fluorescent adhesive 47: The fluorescent adhesive 47 contains a specific ratio of rare earth phosphors (such as Y6Al). 10 O 12 :Ce³ + ) and silicate phosphors (such as Sr2, SiO4:Eu²) + When excited by 455nm blue light, it can emit a broadband yellow-green light covering the 500-700nm wavelength band, which mixes with the direct light emission of the red and green chips to form visible light with high color rendering and continuous spectrum.

[0046] Human-computer interaction module 5: Hardware: It uses a 3.5-inch capacitive touch screen, which is connected to the main controller via an SPI interface.

[0047] Software Interface: Provides a graphical user interface with three preset core modes: Real-time synchronization mode: The lighting spectrum dynamically follows the real-time outdoor spectrum.

[0048] Solar term scenario mode: Users can select any solar term, and the system will run according to the historical spectral model of that solar term.

[0049] Custom mode: Users can manually set the light intensity ratio, color temperature, brightness, or customize the spectral curve for each wavelength.

[0050] Communication Module 6: Hardware: Integrated ESP32 dual-mode Wi-Fi and Bluetooth communication chip. Functions: Supports connection to user mobile APP and smart home control (such as Home Assistant) via LAN or Internet to realize remote status monitoring, mode switching, firmware upgrade and other functions.

[0051] System power supply: An external wide-voltage input (AC100-240V) switching power supply is used, providing a stable DC24V / 5A output to power all modules. The power supply has overvoltage, overcurrent, and short-circuit protection.

[0052] Example 2: Dynamic Execution Flow of the Lighting Method This embodiment is combined with the appendix Figure 3 Taking the "Summer Solstice Real-time Synchronization Mode" as an example, this paper details the complete workflow of the system from perception to output.

[0053] Step S1: System Initialization The system powers on, and each module completes its self-test. The user selects "Real-time Synchronization Mode" via the touchscreen. Outdoor environmental parameter acquisition module 1 begins collecting data at a frequency of once per minute.

[0054] Step S2: Data Acquisition and Transmission Assuming the time is 9:00 AM, the data acquisition module packages a set of real-time data and sends it to the intelligent control module 2. Spectral data: The current outdoor solar spectrum shows a peak around 550nm (green light).

[0055] Environmental data: Temperature 28℃, humidity 60%, illuminance 80000 lux.

[0056] Step S3: Intelligent Analysis and Instruction Generation After receiving the data, the intelligent control module 2 performs the following operations: S31. Data Fusion: Compare and analyze the real-time spectrum with the solar term baseline spectrum model at the current time (9:00 AM on the summer solstice).

[0057] S32. Trend Prediction: Based on the spectral change sequence over the past few minutes, the spectral simulation algorithm predicts that in the next 5 minutes, the spectral peak may shift slightly towards shorter wavelengths (blue light), and the overall illuminance will increase by about 10%.

[0058] S33. Instruction Calculation: Based on real-time data, predicted trends, and human comfort models, the target spectral output for the next moment should be calculated as follows: enhance blue and green light components, slightly reduce the proportion of red light, and maintain auxiliary intensity of ultraviolet and infrared.

[0059] S34. Command Issuance: Generate adjustment commands containing five target current values ​​(e.g., red 45mA, green 60mA, blue 55mA, ultraviolet 5mA, infrared 8mA) and send them to the spectrum adjustment driver module 3 via UART.

[0060] Step S4: Current-driven and spectral synthesis The spectral adjustment drive module 3 interprets the instructions and, through its internal DAC and constant current circuit, precisely adjusts the five drive currents to the target value within milliseconds. The luminous intensity of each band chip in the COB integrated light source module 4 changes accordingly. The 455nm blue light emitted by the blue light chip 45 partially excites the fluorescent adhesive 47 to produce a yellow-green broadband spectrum.

[0061] This broadband spectrum is mixed in space with direct light of 625nm red light and 525nm green light.

[0062] 385nm ultraviolet light and 850nm infrared light are superimposed in a preset ratio.

[0063] Ultimately, what radiates from the light-emitting surface of the light source is a composite spectrum in the range of 260-1200nm, whose spectral shape highly matches the predicted outdoor natural light.

[0064] Step S5: Continuous closed-loop adjustment The system continuously operates in a closed loop of "acquisition-analysis-prediction-adjustment". Every minute (or shorter depending on the prediction needs), the process repeats from S2, ensuring that the indoor lighting spectrum can smoothly and imperceptibly follow the dynamic changes of outdoor natural light. Even in scenarios where clouds drift by and cause rapid fluctuations in light, the intervention of the prediction algorithm can prevent abrupt changes in the indoor lighting environment.

[0065] Step S6: User Intervention Example If a user remotely switches to "Custom Reading Mode" via a mobile app at 12:00 noon, the system will immediately interrupt the real-time synchronization loop and invoke the preset "Reading Mode" spectral parameters (high color temperature, high illuminance, blue light suppression) to drive the light source to output a suitable reading environment. The system will then maintain this state until it receives a new mode switching command.

[0066] Example 3: System Expansion and Optimization Functions This embodiment aims to illustrate the extended functions of the system of the present invention, such as enhanced reliability, adaptive learning, and energy-saving management, in addition to the basic spectral simulation and adjustment functions.

[0067] 3.1 Fault Tolerance and Degradation Operation Mechanism To ensure the system can still provide basic services when some components fail, a fault tolerance mechanism was designed: Sensor failure detection: The intelligent control module 2 continuously monitors the data output status of each sensor. If the data stream of the outdoor spectral sensor 11 is interrupted or the data is abnormal for a long time (e.g., no update for more than 5 minutes), the sensor is determined to be faulty.

[0068] Automatic mode switching: When the spectral sensor 11 is determined to be faulty, the system automatically and seamlessly switches from "real-time synchronization mode" to "solar term spectral mode". At this time, the system will ignore the real-time spectral input and instead rely entirely on the pre-stored solar term reference spectral model corresponding to the current date and time in the intelligent control module 2 to generate adjustment commands and drive the light source output. At the same time, the system will issue a "sensor malfunction, switched to solar term mode" prompt to the user through the human-machine interface or mobile APP.

[0069] Value: This mechanism ensures that the system does not completely shut down in the event of a failure in the core acquisition component, and can still provide dynamic lighting that roughly matches the natural rhythm, significantly improving the availability and reliability of the system.

[0070] 3.2 Online learning and updating function of the model To achieve long-term accuracy in spectral simulations and adapt to different regional climates, the system supports model optimization: Cloud-based collaboration: Communication module 6 supports establishing a secure connection with a remote cloud server. Local intelligent control module 2 can periodically (e.g., weekly) or when triggered by the user, anonymously upload locally collected spectral and environmental data, along with corresponding adjustment logs, to the cloud over a period of time.

[0071] Model optimization and distribution: The cloud server utilizes its superior computing power to aggregate data from numerous similar devices, iteratively optimizing and refining the regional model of the general "solar term baseline spectrum model." The optimized model file can then be distributed to local devices wirelessly (OTA).

[0072] Local Update: During idle periods, the intelligent control module 2 receives and verifies new model files, updates them to internal memory, and replaces the old model. This allows the system's spectral simulation capabilities to continuously evolve over time and with the accumulation of data, more accurately reflecting localized natural light characteristics.

[0073] 3.3 Intelligent Energy Efficiency Management Strategy To reduce system standby power consumption and achieve green operation, the following energy efficiency management strategies have been integrated: Learning and Automatic Standby: The system has a built-in clock and can learn the user's daily routine. For example, if no one is detected indoors during the late night to early morning hours (e.g., 11:00 PM to 6:00 AM) for several consecutive days (which can be determined by linking with the smart home system or by local infrared sensing), the system will automatically enter deep standby mode during this period, maintaining only the basic timing function of the microcontroller, turning off all sensors, drive circuits, and most light sources, reducing power consumption to below 1W.

[0074] Sufficient Light Judgment and Energy-Saving Operation: When the indoor illuminance sensor 14 (which can be additionally configured or utilize existing system parameters) detects that the indoor natural light is bright enough (e.g., exceeding 500 lux) and the user does not force the lighting to turn on, the system can automatically reduce or turn off the output of artificial light sources, giving priority to the use of natural light, and then automatically supplementing the light when the light is insufficient.

[0075] Value: The above strategy significantly reduces the long-term energy consumption of the system without affecting core functions and user experience, which is in line with the green and environmentally friendly design concept.

[0076] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be within the scope of protection of the present invention.

Claims

1. An all-weather weather lighting system, characterized in that, include: The outdoor environmental parameter acquisition module is used to collect real-time outdoor solar spectrum information, ambient temperature, ambient humidity and outdoor illuminance data in the 260nm to 1200nm band. The intelligent control module is connected to the outdoor environmental parameter acquisition module. It has a pre-stored reference spectral model associated with time and solar terms. It is used to receive the parameter data and analyze and process it through the built-in spectral simulation algorithm to generate spectral adjustment commands. A spectral adjustment drive module, connected to the intelligent control module, is used to receive the spectral adjustment command and output multiple independent and controllable drive currents; The COB integrated light source module, connected to the spectral adjustment and driving module, includes an ultraviolet band chip, a visible light band chip, and an infrared band chip integrated on the same substrate. Under the control of the spectral adjustment and driving module, it outputs a composite spectrum containing ultraviolet, visible, and infrared bands that matches the outdoor real-time spectrum or a preset spectral model.

2. The all-weather weather lighting system according to claim 1, characterized in that, The outdoor environmental parameter acquisition module includes a spectral sensor with a detection band covering 260-1200nm, a temperature sensor, a humidity sensor, and an illuminance sensor. The sampling frequency of the spectral sensor is not less than 1 time / minute.

3. The all-weather weather lighting system according to claim 1, characterized in that, The built-in spectral simulation algorithm of the intelligent control module can predict the trend of spectral changes based on real-time collected solar spectral information and pre-stored reference spectral data of the twenty-four solar terms, and generate spectral adjustment instructions 0-10 minutes in advance.

4. The all-weather weather lighting system according to claim 1, characterized in that, The ultraviolet band chip in the COB integrated light source module has an output wavelength range of 260-420nm; the visible light band chip includes chip groups that output red light, green light and blue light respectively, wherein the red light chip outputs a wavelength of 620-630nm, the green light chip outputs a wavelength of 520-530nm, and the blue light chip outputs a wavelength of 450-470nm; the infrared band chip outputs a wavelength of 850-1200nm.

5. The all-weather weather lighting system according to claim 4, characterized in that, The visible light band chip includes a blue light chip with a fluorescent adhesive coated on its surface. The fluorescent adhesive contains at least one phosphor selected from yttrium dodecanoate aluminum hexatritium, strontium oxide, calcium oxide, and molybdenum trioxide, which is used to generate white light under blue light excitation and mix with the output light of the red and green light chips to form a continuous visible light spectrum.

6. The all-weather weather lighting system according to claim 1, characterized in that, The spectral adjustment drive module can independently adjust the drive current of the five chips (ultraviolet, red, green, blue, and infrared) in the COB integrated light source module. The single-channel current adjustment range is 0-150mA, and the adjustment accuracy is ±1mA.

7. The all-weather weather lighting system according to claim 1, characterized in that, The substrate of the COB integrated light source module is a metal conductive substrate or a ceramic insulating substrate. Its surface is etched with copper foil interconnect circuits and pre-welded with nickel-palladium-gold bonding. The nickel layer thickness is ≥160μ inches, the palladium layer thickness is ≥0.5μ inches, and the gold layer thickness is ≥2μ inches.

8. The all-weather weather lighting system according to claim 1, characterized in that, It also includes a human-computer interaction module, which is connected to the intelligent control module, and is used to allow users to select a standard 24-hour spectrum mode, a solar term spectrum mode, or a custom spectrum mode.

9. The all-weather weather lighting system according to claim 1, characterized in that, It also includes a communication module, which is connected to the intelligent control module and supports at least one of WiFi, Bluetooth and ZigBee communication protocols, for data interaction and remote control with mobile terminals or smart home systems.

10. An all-weather weather lighting method, applied to an all-weather weather lighting system as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The outdoor solar spectrum and environmental parameters are acquired in real time through the outdoor environmental parameter acquisition module. The intelligent control module calculates and generates the target spectral adjustment command based on the acquired parameters and the pre-stored spectral model. The spectral adjustment drive module independently adjusts the current of each band chip in the COB integrated light source module according to the instructions. The COB integrated light source module outputs a composite spectrum that dynamically matches the outdoor real-time spectrum or a preset spectral model.

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