Custom CCT Dimming Curves for Personalized LED Lighting
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Solution Overview
Problem
Existing lighting control systems lack the ability to create customized correlated color temperature (CCT) dimming curves that allow users to adjust the color temperature of LED lighting based on user preferences and environmental conditions, limiting the flexibility and personalization of lighting effects.
Innovation Solution
A lighting control system that allows users to select high-end and low-end CCT values, a bend value, and a dimming curve to generate a custom CCT dimming curve, which is then used to control LED lighting devices, enabling precise adjustment of color temperature across varying intensity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed CCT dimming curve is used in lighting control systems, then the system operation is simple, but the adaptability to user preferences and environmental conditions is limited
Solution Approach 1:
The patent implements dynamic CCT dimming curves that can be customized and adjusted based on user preferences and environmental conditions. The system allows users to define high-end and low-end CCT values, select bend values, and choose from multiple dimming curve types (linear, quadratic, cubic) to create personalized lighting experiences that adapt to different situations throughout the day.
Solution Approach 2:
The system enables parameter customization by allowing users to modify key parameters including high-end CCT value, low-end CCT value, bend value, and dimming curve type. These parameter changes create customized CCT dimming curves that can be transmitted to lighting devices, providing versatility without requiring complex hardware modifications.
2Measurement precision
If LED lighting provides adjustable color temperature, then lighting versatility is improved, but control precision for mimicking natural light conditions deteriorates
Solution Approach 1:
The system performs preliminary action by providing pre-configured dimming curve templates (linear, quadratic, cubic) that users can select based on their desired lighting behavior. This allows users to achieve precise natural light simulation without having to manually calculate complex curve parameters, as the templates are designed to match typical natural light patterns throughout the day.
Solution Approach 2:
The system incorporates feedback mechanisms where users can adjust high-end and low-end CCT values based on their observations of natural light conditions or personal preferences. The bend value parameter provides additional feedback control for fine-tuning the curvature of the dimming curve to more accurately match natural light transitions.
Data Source
AI summary
One or more devices of a lighting control system may be configured to generate a custom CCT dimming curve for a lighting load. The device may receive, via a user selection, a high-end correlated color temperature (CCT) value, where the high-end CCT value is associated with a high-end intensity level of the lighting load. The device may receive, via a user selection, a CCT dimming curve from a plurality of selectable curve shapes. The device may determine a bend value and a CCT range based on the selected curve shape. The device may determine a low-end CCT value based on the high-end CCT value and the CCT range, where the low-end CCT value is associated with a low-end intensity level of the lighting load. The device may determine the custom CCT dimming curve based on the high-end CCT value, the low-end CCT value, and the bend value.