LED Illumination System with Time-Based Color Temperature Control
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Solution Overview
Problem
Existing illumination devices struggle to dynamically and automatically adjust color temperature throughout the day without relying on sensor outputs, and they lack the ability to manually override brightness to accurately emulate natural sunlight conditions in different rooms for various tasks.
Innovation Solution
The system employs a network of LED chains with a driver circuit and control module that automatically changes color temperature based on time signals, allowing manual override through a remote controller to adjust brightness and color temperature, ensuring accurate sunlight emulation in various rooms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic color temperature adjustment based on time of day is implemented, then sunlight emulation accuracy is improved, but manual control flexibility deteriorates
Solution Approach 1:
The system dynamically switches between automatic time-based color temperature adjustment and manual override modes. The controller automatically adjusts color temperature based on time of day unless manually overridden by user input from a remote controller, allowing flexible switching between automated and manual control states.
Solution Approach 2:
The system incorporates feedback mechanisms where the controller monitors time of day signals and automatically adjusts color temperature, while also receiving feedback from remote controllers that can override automatic adjustments. This feedback loop enables both automatic sunlight emulation and manual control flexibility.
2Measurement precision
If sensor-based automatic adjustment is used, then lighting accuracy is improved, but system complexity increases
Solution Approach 1:
The patent removes sensors from the system and replaces them with time-based automatic adjustment. Instead of using sensors to detect ambient light conditions, the system uses time of day information to automatically adjust color temperature, thereby eliminating sensor complexity while maintaining automatic adjustment functionality.
Solution Approach 2:
The system substitutes sensor-based detection with time-based control mechanisms. Rather than using physical sensors to measure lighting conditions, the controller uses temporal information (time of day) to determine appropriate color temperature settings, replacing complex sensing hardware with simpler time-tracking functionality.
3Adaptability or versatility
If manual brightness override is added, then task-specific lighting control is improved, but automation capability deteriorates
Solution Approach 1:
The system dynamically balances automation and manual control by allowing the remote controller to override automatic color temperature adjustments when needed for specific tasks. The controller can switch between following time-based automation rules and executing manual user commands, providing adaptability for different lighting scenarios.
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 solution enables dynamic and automatic color temperature adjustment throughout the day, allowing for manual override to match task-specific lighting needs, providing a more accurate and consistent sunlight emulation in different rooms without relying on sensors.
Implementation Method 1
An illumination device can include a multi-color LED illumination device, which combine a number of differently colored emission LEDs into a single package
Data Source
AI summary
An illumination device, system and method are provided herein for emulating sunlight along a daytime or nighttime locus. Sunlight is emulated depending on the path length of the sun relative to a structure containing the illumination device and system. One or more illumination devices can be grouped together and perform the sunlight emulation along the locus by producing different color temperatures throughout the day by all illumination devices within that group producing the same color temperature changes throughout the day. Moreover, a particular advantage of the preferred embodiments is the ability to manually change at any time the emulated natural sunlight output from the one or more groups of illumination devices and advantageously change the color output more so at certain times than at other times by simply actuating a trigger on a dimmer associated with a virtual or physical keypad.