Auto-Gradient Pixel Control for LED Luminaire Lighting
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Solution Overview
Problem
Conventional LED lighting systems for motion picture and television industries require complex control systems for precise pixel control, especially when adjusting intensity, color temperature, and other parameters across multiple LED strips, leading to cumbersome operations and inefficiencies.
Innovation Solution
The implementation of an auto-gradient system that allows for the interpolation of light parameters across pixels within a luminaire or multiple luminaires, enabling efficient gradient application of intensity, color temperature, saturation, hue, and tint without the need for full pixel controllers, using a mini-controller to calculate middle pixel values based on start and end pixel settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional control systems are used for LED lighting, then precise pixel control is achieved, but system complexity increases significantly
Solution Approach 1:
The control system is segmented into two functional parts: a simplified user interface that only requires setting start and end pixel parameters, and an automatic gradient calculation engine that computes intermediate pixel values. This segmentation eliminates the need for complex manual control of each pixel while maintaining precision.
Solution Approach 2:
The system performs self-service by automatically calculating and applying gradient values across pixels based on user-defined start and end points. The intermediate pixel values are computed autonomously without requiring manual intervention, reducing operational complexity while maintaining control precision.
2Adaptability or versatility
If full pixel controllers are used for each LED, then complete control capability is achieved, but cost and system complexity increase
Solution Approach 1:
A single mini-controller unit is designed to perform multiple functions: it receives start and end pixel parameters, automatically calculates gradient values for all intermediate pixels, and applies the complete gradient sequence. This universal controller replaces the need for individual full controllers at each pixel, maintaining adaptability while reducing overall system complexity.
Solution Approach 2:
The gradient calculation engine acts as an intermediary between the simplified user input and the LED pixels. It translates high-level start/end parameter specifications into detailed pixel-by-pixel control signals, providing complete control capability without requiring complex user intervention or multiple controllers.
3Measurement precision
If multiple LED strips are controlled individually, then precise adjustment of intensity and color is achieved, but operation becomes cumbersome
Solution Approach 1:
Multiple LED strips are merged into a single continuous addressable sequence, allowing gradient effects to span across strip boundaries. The system treats all pixels across multiple strips uniformly, enabling precise intensity and color adjustment through a single gradient operation rather than separate controls for each strip.
Solution Approach 2:
The system performs preliminary automatic calculation of all intermediate pixel values across multiple LED strips based on user-defined start and end parameters. This preliminary action prepares the complete gradient sequence in advance, eliminating the need for step-by-step manual adjustment and simplifying operation while maintaining precision.
Data Source
AI summary
A luminaire adapted to apply an auto-gradient effect across pixels has an interface coupled by a connection to a controller. The controller has electronic circuitry that receives a predetermined start light parameter for a start pixel of a luminaire and receives a predetermined end light parameter for an end pixel of the first luminaire, the predetermined end light parameter greater than the predetermined start light parameter. The controller circuitry then automatically interpolates a gradient effect for a middle light parameter of each of a plurality of middle pixels of the luminaire based on the start and end predetermined light parameters. The controller circuitry then outputs control signals having the start, end and middle light parameters to the start, end and middle light pixels, respectively, through the connection and to the interface.