LED Pixel Array Controller for Low-Bandwidth Color Gradient Generation
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Solution Overview
Problem
Existing lighting devices with LED pixels struggle to create customizable color gradient patterns across arrays without high-bandwidth network connections, limiting user customization options.
Innovation Solution
A lighting device with a controller that receives minimal input control data via a network interface, assigns color points in a pattern space, and interpolates intermediate colors to generate a wide variety of gradient patterns, allowing for customizable color transitions based on user-defined end points and constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If custom color gradient patterns are created using pre-stored gradient patterns with pre-defined color mappings, then the lighting device can generate color gradients, but the customization possibilities are highly limited
Solution Approach 1:
The gradient pattern is segmented into key color points that define the gradient's characteristics. Instead of transmitting complete gradient data, only essential color point information is sent remotely, while the controller locally generates the complete gradient pattern by interpolating between these points.
Solution Approach 2:
The controller is pre-configured with the capability to generate gradient patterns locally using stored algorithms. When remote control is needed, only minimal parameters (color points) are transmitted, and the pre-programmed controller automatically generates the full gradient pattern without requiring complete data transmission.
2Adaptability or versatility
If custom control regimes are created and transferred via network connection, then customization options increase, but high bandwidth network connection is required
Solution Approach 1:
The essential information needed for gradient generation is extracted from the complete control data. Instead of transmitting full gradient patterns, only critical color point parameters are extracted and transmitted via the network, significantly reducing data volume while preserving customization capability.
Solution Approach 2:
The lighting device is pre-configured with gradient generation algorithms and capabilities. This preliminary setup allows the device to receive minimal parameters and automatically generate complete gradient patterns locally, eliminating the need for high-bandwidth continuous data transfer.
3Manufacturing precision
If complete gradient patterns are transmitted remotely, then accurate color gradients can be generated, but network bandwidth requirements increase
Solution Approach 1:
Critical color information is extracted as discrete color points that define the gradient's start, end, and key intermediate colors. These extracted points contain all necessary information for accurate gradient reconstruction, eliminating the need to transmit complete pixel-by-pixel gradient data.
Solution Approach 2:
The controller performs self-service by automatically generating complete gradient patterns from received color point parameters using local interpolation algorithms. This self-generation capability ensures accurate color gradients are produced locally without requiring high-volume data transmission from external sources.
Data Source
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AI summary
A lighting device comprises an array of controllable light emitting pixels, each pixel having an adjustable light output colour. A controller is configured to receive a limited set of light output colours and to locally process these light output colours to form a colour gradient pattern to be displayed across pixels of the array.