LED Illumination System with Dimcurve Smoothing for Natural Light Emulation
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Solution Overview
Problem
Current illumination systems using LED devices struggle to dynamically and automatically emulate natural sunlight changes throughout the day, particularly in controlling color temperature and brightness across multiple zones and scenes, without user intervention, while also requiring a seamless transition between different lighting scenarios.
Innovation Solution
A keypad-based system communicatively linked to LED illumination devices allows for the control of color temperature and brightness across zones and scenes, using dimcurves to map color temperature changes as a function of brightness and time of day, enabling automatic and periodic adjustments to mimic natural sunlight conditions, with the option for manual override and smooth transitions between lighting scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automatic control of color temperature and brightness is implemented to emulate natural sunlight, then the system can dynamically adjust lighting conditions without user intervention, but the device complexity increases due to the need for dimcurves, zones, and scenes
Solution Approach 1:
The system divides the illumination control into multiple zones and scenes, each with independent color temperature and brightness control. This segmentation allows complex natural sunlight emulation to be achieved through coordinated control of simpler individual zones, resolving the contradiction between automation capability and system complexity.
Solution Approach 2:
The system implements dynamic control by enabling real-time adjustment of color temperature and brightness through dimcurves that automatically respond to time of day. This dynamic adaptation allows the system to emulate natural sunlight changes without requiring complex manual intervention, balancing automation with manageable complexity.
2Adaptability or versatility
If multiple zones and scenes are controlled independently to achieve natural sunlight emulation, then the adaptability to different lighting conditions improves, but the ease of operation decreases due to the complexity of managing multiple parameters
Solution Approach 1:
The system provides a universal control interface that can manage multiple zones and scenes through a single keypad, eliminating the need for separate controls for each zone. This multi-functionality maintains high adaptability to different lighting conditions while significantly improving ease of operation through consolidated control.
Solution Approach 2:
The system automatically adjusts color temperature and brightness based on time of day through pre-programmed dimcurves, reducing the need for manual user intervention. This self-service capability maintains the system's adaptability to natural sunlight conditions while making it easier to operate without requiring users to manually configure multiple parameters.
3Reliability
If smooth transitions between lighting scenarios are implemented, then the quality of natural sunlight emulation improves, but the loss of time increases due to transition durations
Solution Approach 1:
The system pre-configures multiple dimcurves with predetermined color temperature and brightness profiles for different times of day. By having these transitions ready in advance, the system can execute smooth transitions between lighting scenarios without significant delays, maintaining both high emulation quality and minimal time loss.
Data Source
AI summary
An illumination system and method is provided for readily mapping a plurality of scenes along a dimcurve form a natural show for one or more groups of LED illumination devices. Mapping can be performed using a graphical user interface on a remote controller wirelessly linked to the illumination devices. A keypad is preferably configured for button control of changes to color temperature as a function of brightness along each of the various dimcurves for each of the various groups of illumination devices controlled by a corresponding keypad to allow momentary or persistent override and reprogram of the natural show. Modification to a scene further comprises modifications to scenes before and after the currently modified scene to provide a smoothing dimcurve modification. Global keypad can be used to control multiple zones arranged throughout a structure to switch between a natural show that emulates outdoor sunlight conditions to a panic show when an intruder is detected.