Controlled LED Driver System for Dynamic Lighting Adaptation
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Solution Overview
Problem
Current LED lighting systems lack efficient and flexible control methods for driving LEDs, which limits their ability to adapt to varying environmental conditions and user inputs.
Innovation Solution
A controlled LED driver system that includes an AC/DC converter, LED drivers capable of pulsed output power modulation, and a local controller that receives control information from various sources to adjust LED driving parameters such as duty cycle and intensity, using sensors and remote controllers for dynamic lighting control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED driving parameters are fixed, then the circuit design is simple, but the system cannot adapt to varying environmental conditions and user inputs
Solution Approach 1:
The control system is segmented into a local controller that processes sensor inputs and determines LED driving parameters, and LED drivers that execute the control signals. This segmentation allows adaptability while keeping each component's complexity manageable.
Solution Approach 2:
The local controller acts as an intermediary between sensors (motion detectors, light detectors, video cameras) and LED drivers, processing control information and translating environmental inputs into appropriate LED driving parameters, thereby enabling adaptation without direct complex connections between sensors and drivers.
2Adaptability or versatility
If multiple control sources are integrated, then the system flexibility increases, but the control architecture becomes more complex
Solution Approach 1:
The local controller is designed with universal functionality to accept control information from multiple diverse sources including motion detectors, light detectors, video cameras, and remote controllers through a standardized control interface, enabling flexible control without requiring separate processing paths for each source.
Solution Approach 2:
The system implements feedback mechanisms where sensors continuously monitor environmental conditions and user inputs, and the local controller adjusts LED driving parameters in real-time based on this feedback, enabling dynamic adaptation while maintaining a unified control architecture.
3Speed
If real-time control is implemented, then the lighting responsiveness improves, but the processing requirements increase
Solution Approach 1:
The local controller implements partial processing by focusing on determining key LED driving parameters (intensity, duty cycle) based on control information, rather than processing all possible sensor data comprehensively. This approach achieves real-time responsiveness with moderate processing requirements.
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
Enables efficient and flexible LED lighting by dynamically adjusting parameters based on environmental and user inputs, ensuring optimal lighting intensity and color, while supporting secure and multiple access control mechanisms.
Implementation Method 1
an AC/DC converter configured to convert an AC voltage at its input to a DC voltage at its output
Implementation Method 2
at least one LED driver coupled to the output of the AC/DC converter and configured to convert the DC voltage to a pulsed output power for driving one or more LEDs
Implementation Method 3
one or more LEDs that serve to provide lighting
Data Source
AI summary
Controlled Light Emitting Diode (LED) driver comprising an AC/DC converter configured to convert an AC voltage at its input to a DC voltage at its output; at least one LED driver coupled to the output of the AC/DC converter and configured to convert the DC voltage to a pulsed output power for driving one or more LEDs that serve to provide lighting; and a local controller having a control interface. The control interface is configured to receive control information from one or more control sources coupled to it, and the local controller is further coupled to the at least one LED driver for controlling its operation by determining one or more LED driving parameters of the pulsed output power, based on the control information.