Multi-LED Lighting Control for Object-Specific Light Tuning
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Solution Overview
Problem
Users face difficulties in adjusting and combining multiple lighting devices to achieve desired optical effects, making it inconvenient to optimize light parameters for various objects and environments.
Innovation Solution
A lighting apparatus with a driver, light source, and controller that integrates multiple LED modules with different output parameters, allowing for independent control of driving currents and adjustment of light ratios using PWM power circuits and fluorescent layers, along with a manual switch and environmental light detection for optimized illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple LED modules with different output parameters are integrated, then adaptability and versatility are improved, but device complexity increases
Solution Approach 1:
The lighting system is divided into multiple independently controllable LED modules, each with different output parameters (color temperature, color, spectrum). This segmentation allows the system to achieve high adaptability by selectively activating different modules, while the modular structure makes the complexity manageable through standardized interfaces and control mechanisms.
Solution Approach 2:
The system implements dynamic control of LED module activation and parameter adjustment through PWM dimming control. The controller can dynamically adjust the relative ratios of driving currents to different LED modules, enabling real-time optimization of light output for various objects and environments without requiring physical reconfiguration.
2Ease of operation
If independent control of multiple LED modules is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
A driver circuit acts as an intermediary between the controller and multiple LED modules, managing the complex current distribution and PWM dimming control. This intermediary component simplifies the controller's task while enabling independent control of each LED module, thus improving ease of operation without requiring the end user to directly manage the underlying circuit complexity.
Solution Approach 2:
The system controls different LED modules by adjusting parameters such as driving current ratios and PWM dimming levels. By changing these electrical parameters dynamically, the system achieves versatile light output control (color temperature, color, spectrum) while maintaining a relatively simple control interface for users.
3Adaptability or versatility
If optimized lighting settings for different objects are implemented, then adaptability is improved, but loss of time for adjustment increases
Solution Approach 1:
The system pre-establishes optimized lighting settings for different types of objects (e.g., clothing, food, artwork) by configuring specific combinations of LED module activations and parameter values. These preset configurations are stored in the controller, allowing users to quickly switch between object-specific lighting modes without manually adjusting multiple parameters, thus reducing adjustment time while maintaining high adaptability.
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 convenient and flexible adjustment of light output to achieve specific optical effects for different objects and environments, improving light quality and consistency across various settings.
Implementation Method 1
The driver is used for converting an external power to generate multiple driving currents
Implementation Method 2
The light source includes a package holder integrating multiple LED modules having different output light parameters
Implementation Method 3
The package holder has multiple terminals for separately receiving the driving currents to control the multiple LED modules independently in the package holder
Data Source
AI summary
A lighting apparatus includes a driver, a light source, and a controller. The driver is used for converting an external power to generate multiple driving currents. The light source includes a package holder integrating multiple LED modules having different output light parameters. The package holder has multiple terminals for separately receiving the driving currents to control the multiple LED modules independently in the package holder. The controller is used for controlling the driver for adjusting a relative ratio among the multiple driving currents to render an output light of the light source corresponding to predetermined optimized settings for at least an object illuminated by the light source.