Adaptive LED Plant Lighting System with Sensor Feedback
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Solution Overview
Problem
Current lighting systems for plant growth, such as those using gas-based lights and LEDs, lack effective control over light spectrum and intensity, which can impact plant growth and yield.
Innovation Solution
A lighting system with an LED array that adjusts light intensity and color spectrum in response to sensory inputs from sensors, using a controller to match target parameters like daily micro-mol quantity and color ratio, and visual maps to depict light criteria and discrepancies, allowing for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If gas-based lights or LEDs are used for plant growth, then lighting coverage is provided, but control over light spectrum and intensity is insufficient
Solution Approach 1:
The lighting system dynamically adjusts light intensity and spectrum by varying the operational state of different LED groups based on plant growth stage, time of day, and environmental conditions, transforming a static lighting system into an adaptive one that responds to changing requirements
Solution Approach 2:
The system changes multiple light parameters simultaneously including intensity (via PWM dimming), spectrum (by activating different LED wavelengths), and duration (through timed cycles), allowing comprehensive control over the light environment to resolve the limitation of insufficient parameter control
2Adaptability or versatility
If fixed lighting systems are used, then simple operation is maintained, but adaptability to different growth conditions is limited
Solution Approach 1:
The system incorporates environmental sensors that continuously monitor conditions such as ambient light, temperature, and humidity, feeding this data back to the controller which automatically adjusts lighting parameters, creating a closed-loop system that adapts to changing conditions without manual intervention
Solution Approach 2:
The lighting system serves itself by automatically adjusting its operation based on sensor input and pre-programmed growth requirements, eliminating the need for constant manual adjustment and allowing the system to adapt to different growth stages and environmental conditions autonomously
3Speed
If manual adjustment of lighting parameters is used, then system simplicity is maintained, but response time to environmental changes is slow
Solution Approach 1:
The automated feedback loop continuously monitors environmental conditions and immediately adjusts lighting parameters in response to detected changes, providing rapid response times that would be impossible with manual adjustment while maintaining system effectiveness through automated control
Solution Approach 2:
The system replaces manual mechanical adjustment with electronic automated control through microcontrollers and LED drivers, substituting the slow mechanical process of manual parameter changes with fast electronic adjustment capabilities that can respond instantaneously to sensor input
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enhances plant growth by providing optimal light conditions, improving yield and growth quality by dynamically adjusting light output based on sensed parameters, thereby addressing the limitations of existing systems.
Implementation Method 1
an LED array can have its output of light, including light intensity and/or color spectra, controlled locally
Implementation Method 2
respective sensors are operable to detect information (e.g., light criteria, temperature, humidity, etc.)
Data Source
AI summary
A lighting system for facilitating the growth of plants. The system can include an LED array having an output of light, including light intensity and/or color spectra, controlled locally in response to one or more sensors of the respective system detecting a sensory input analyzed against a target parameter set. The LED array and/or corresponding one or more sensors can be disposed on or internal to a housing. The LED array can be protected and a controller of the system can be configured to analyze data from the one or more sensors and adjust output of the LED array in response.