LED Light Stack Dynamic Power Control
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Solution Overview
Problem
Conventional light stack assemblies consume excessive energy due to constant power draw and unnecessary light output, as they lack the ability to adjust their energy usage throughout their life cycle, making them inefficient in various environments.
Innovation Solution
A light stack assembly with a control module that transitions LED arrays between light emitting and non-light emitting conditions based on proximity sensors and a master controller that adjusts the duty cycle and phase shift of LED groups to optimize energy usage, incorporating multi-angle lens modules for enhanced light distribution and a plant input unit for tailored lighting to plant species.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light stack assemblies operate with constant power draw to ensure continuous light output, then illumination availability is maintained, but energy consumption increases unnecessarily during periods when light is not needed
Solution Approach 1:
The light stack assembly transitions from static constant power operation to dynamic variable power operation. The control module adjusts the power draw of LED arrays in real-time based on signals from proximity sensors and plant growth stage detection, enabling the system to optimize energy consumption while maintaining appropriate light output availability when needed.
Solution Approach 2:
The system implements feedback control through proximity sensors that detect the presence of objects or plants, and plant growth stage detection mechanisms. This feedback information is processed by the control module to dynamically adjust the power consumption of LED arrays, ensuring energy is consumed only when and where light is actually needed rather than operating continuously at constant power.
2Use of energy by moving object
If all LED arrays operate simultaneously at full power to maximize light output, then illumination intensity is sufficient, but energy waste occurs during early plant growth stages when less light is needed
Solution Approach 1:
The light stack assembly divides the LED arrays into multiple independently controllable groups rather than operating them as a single unit. The control module can selectively activate specific LED arrays based on plant growth stage, proximity detections, or spatial requirements, allowing the system to provide sufficient localized illumination without wasting energy on unnecessary arrays operating at full power.
Solution Approach 2:
Different LED arrays are operated with different power levels or activation states based on local requirements. The control module adjusts the operational characteristics of individual LED arrays or groups according to specific plant growth stages, proximity of objects, or spatial lighting needs, ensuring that light output effectiveness is maintained where needed while reducing energy consumption in areas or times when full illumination is not required.
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
The solution reduces overall power consumption by dynamically adjusting LED output based on detected objects and plant growth stages, ensuring efficient energy use while maintaining effective light absorption for plant growth, thereby optimizing energy efficiency and reducing unnecessary light output.
Implementation Method 1
A plurality of light emitting diode (LED) arrays can be coupled with the elongate body and arranged along the length thereof
Implementation Method 2
The control module can be configured to individually transition each of the plurality of LED arrays between a light emitting condition and a non-light emitting condition
Data Source
AI summary
Lighting system having a plurality light emitting diodes, wherein each of the light emitting diodes is configured to output light in a predetermined color bands and is arranged in a corresponding group according to the predetermined color bands. A plurality of power output controllers, each of the plurality of power output controllers configured to output a predetermined power level to the corresponding group of light emitting diodes and a master controller coupled to the plurality of output controllers and operable to synchronize the plurality of output controllers. The master controller operable to receive data from a remote device indicating a desired duty cycle, cycle period, and phase shift of the output power relative to one another.