LED Lighting Node Spectral Control via Optical Sensor Feedback
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Solution Overview
Problem
Conventional lighting systems in homes and buildings are limited by the use of incandescent and fluorescent bulbs, which lack long life, energy efficiency, color variety, and flexible control options, requiring tedious manual inspections and offering only basic on-off or dimming controls that are not granular or user-friendly.
Innovation Solution
A lighting and control system comprising a lighting node with LEDs and a remote control device that allows for precise spectral content adjustment through user-configured color profiles, identification processes, and calibration using optical sensors, enabling elegant and granular control over lighting settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional lighting systems use incandescent and fluorescent bulbs, then basic lighting function is provided, but energy efficiency is poor and lifespan is limited
Solution Approach 1:
The patent changes the fundamental parameter of light generation from thermal radiation (incandescent) and gas discharge (fluorescent) to electroluminescence in LEDs. This parameter change enables significantly higher energy efficiency while maintaining the lighting function, directly resolving the contradiction between energy loss and energy consumption.
2Productivity
If conventional lamps are installed in specific locations, then lighting coverage is provided, but manual inspection becomes tedious in buildings with large numbers of lamps
Solution Approach 1:
The patent replaces the mechanical/manual inspection process with an automated electronic monitoring system. Each LED module includes integrated sensors and communication capabilities that automatically report operational status, color temperature, and spectral content to a central control system, eliminating the need for manual physical inspection of each lamp.
Solution Approach 2:
The lighting system performs self-diagnosis and self-reporting through integrated sensors and microcontrollers in each LED module. The system automatically detects faults, monitors performance parameters, and communicates status information without requiring human intervention, enabling the system to serve its own monitoring needs.
3Adaptability or versatility
If conventional switches provide centralized control, then all lights in a room can be controlled, but granular control over individual lamps or small groups is not possible
Solution Approach 1:
The patent segments the lighting control system into independently controllable LED modules, each with its own controller and communication interface. This segmentation enables granular control where individual modules or small groups can be adjusted separately, while still allowing centralized control of entire rooms or buildings through hierarchical control architecture.
Solution Approach 2:
The control system is designed to be dynamic and reconfigurable, allowing users to create flexible groupings of LED modules based on spatial location, function, or user preference. Control boundaries can be dynamically adjusted rather than being fixed, enabling adaptability between centralized and granular control modes as needed.
4Adaptability or versatility
If conventional lamps provide limited color selection, then simple lighting options are available, but color variety and spectral precision are insufficient
Solution Approach 1:
The patent uses composite LED structures combining multiple phosphor materials with different emission characteristics. By layering or mixing phosphors with complementary color temperatures and spectral profiles, the system achieves precise spectral control and broad color variety that cannot be obtained with single-phosphor conventional lamps.
Solution Approach 2:
The system dynamically changes spectral parameters by adjusting the drive currents to individual LED chips with different color temperatures and by varying phosphor excitation wavelengths. This enables precise control over spectral content and color output, providing both variety and precision simultaneously.
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
Provides a highly configurable and precise lighting experience with advanced user control, allowing for centralized management of multiple lighting nodes, improved energy efficiency, and automatic calibration to maintain desired color profiles over time.
Implementation Method 1
capturing a color composition via an optical sensor on the remote control device
Implementation Method 2
a lighting node with LEDs
Implementation Method 3
The lighting node can respond to the identification request by sending an identifier to the remote control device
Data Source
AI summary
Lighting and control systems and methods for a lighting node and a remote control device are disclosed. The remote control device may be coupled to the lighting node via an identification process, such as broadcasting an identification request from the remote control device to nearby lighting nodes. The lighting node can respond to the identification request by sending an identifier to the remote control device such that future commands sent from the remote control device is limited to be responded by the lighting node having the identifier stored thereon. Once coupled, the remote control device can adjust spectral content produced by the lighting node based on user-configuration or a color profile captured via an optical sensor. The adjustment via the remote control device may further include calibration and recalibration of the lighting node utilizing a feedback mechanism with the optical sensor.