LED Illumination Controller Using Simple Digital Command Structure
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Solution Overview
Problem
Existing LED illumination control systems are complex and require multiple commands for simple operations, necessitating a more straightforward approach for controlling three-color LED modules.
Innovation Solution
A digital illumination controller with a processor that receives illumination control packets to modulate signals for red, green, and blue colors using pulse frequency and width modulation, allowing for efficient control of LED illumination levels through a simple digital command structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing digital interface systems like DALI are used for LED illumination control, then the control capability is comprehensive, but the command structure becomes complex and requires multiple commands for simple operations
Solution Approach 1:
The control system is segmented into distinct functional components: a processor for interpreting commands, separate control outputs for each LED color channel (R, G, B), and modular pulse modulation circuits. This segmentation allows each component to handle specific tasks independently, simplifying the overall control architecture while maintaining comprehensive control capability
Solution Approach 2:
Instead of using complex multi-byte commands with multiple registers as in traditional DALI systems, the invention inverts the approach by using simple single-byte commands where each byte directly controls a specific parameter. This inversion dramatically reduces command complexity while preserving full control functionality
2Adaptability or versatility
If traditional illumination control systems are adapted for LED control, then compatibility with existing systems is maintained, but the system complexity increases
Solution Approach 1:
The controller is designed with universal interfaces that can accommodate multiple communication protocols including DALI, RS-232, and other digital interfaces. The processor can interpret various command formats and translate them into unified internal control signals, enabling the system to work with different interface standards without increasing internal complexity
Solution Approach 2:
The processor acts as an intermediary layer between external control interfaces and the LED driver circuits. It receives commands from various interface types, processes them uniformly, and generates appropriate control signals for the LED channels, thereby decoupling interface complexity from the core control logic
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 easy and efficient control of LED illumination levels, reducing complexity and power consumption while maintaining lighting scenes, with the ability to dim or lower illumination uniformly, and supports various interfaces including RS-232, RS-485, and Ethernet.
Implementation Method 1
The first color control output may use pulse frequency modulation based on the first color level parameter and may use pulse width modulation based on the scaling parameter for pulse modulating the first signal
Implementation Method 2
The first color control output may use pulse frequency modulation based on the first color level parameter and may use pulse width modulation based on the scaling parameter for pulse modulating the first signal
Implementation Method 3
an illumination controller for use with at least one three-color LED module
Implementation Method 4
Transform Electrical Energy to Optical Energy
Data Source
AI summary
Disclosed is an illumination controller for use with at least one LED module. The illumination controller includes an input, a control output, and a processor. The command input receives at least one illumination control packet. The control output pulse modulates a signal that powers an illumination level. The processor controls the control output in accordance with an illumination level parameter associated with a first illumination control packet received at the input and a scaling parameter associated with a second illumination control packet received at the input.