Lighting Device Color Control Through Automatic CRI Vibrancy
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Solution Overview
Problem
Users of load control systems face challenges in configuring multiple types of load control systems, such as lighting, window treatments, and HVAC, due to numerous settings that require efficient and accurate interaction through graphical user interfaces.
Innovation Solution
A system that allows users to configure lighting loads in auto or adjustable vibrancy modes, where auto vibrancy mode automatically determines a vibrancy value based on selected color settings to achieve a target CRI value, and adjustable vibrancy mode enables user selection of vibrancy values within a range, with graphical user interfaces providing control options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users manually configure each setting for multiple load control systems, then configuration accuracy can be achieved, but the complexity of operation increases significantly
Solution Approach 1:
The system performs self-service by automatically determining vibrancy values based on selected color settings without requiring manual user input. The controller automatically calculates the vibrancy value using the distance from the black-body curve, eliminating the need for users to manually configure each parameter while maintaining configuration accuracy.
Solution Approach 2:
The system changes parameters automatically by deriving vibrancy values from color settings through a defined relationship (distance from black-body curve). This parameter transformation approach allows the system to maintain precise configuration while reducing operational complexity, as users only need to select color settings rather than configure multiple independent parameters.
2Reliability
If the system provides detailed control over multiple parameters, then lighting quality can be optimized, but the device complexity increases
Solution Approach 1:
The system extracts the vibrancy parameter determination from manual user input and performs it automatically through an algorithm that calculates the distance from the black-body curve. This extraction reduces the number of user-facing controls while maintaining the detailed parameter control needed for lighting quality optimization.
Solution Approach 2:
The controller performs multiple functions by automatically determining both color settings and vibrancy values based on the selected color. This multi-functionality allows the system to maintain comprehensive lighting quality control while presenting a simplified interface, as the same controller that selects color also automatically determines vibrancy.
3Ease of operation
If the system automatically determines vibrancy values, then ease of operation improves, but the level of automation increases system complexity
Solution Approach 1:
The system implements self-service by automatically calculating vibrancy values based on selected color settings without requiring manual user input. The controller autonomously determines the distance from the black-body curve and sets the appropriate vibrancy value, improving ease of operation while managing automation complexity through a straightforward calculation approach.
Data Source
AI summary
In an auto vibrancy mode, a vibrancy value for a lighting load may be automatically determined based on a selected color setting for the lighting load. The automatically determined vibrancy value may also be configured to emit light from the lighting load at or above a target CRI value for the selected color setting. The selected color setting may be a CCT value on the black-body curve or an x-y chromaticity value. If the selected color setting is CCT value on the black-body curve, the automatically determined vibrancy value may be a pre-defined vibrancy value that is configured to emit light from the lighting load at or above the target CRI value for the selected CCT value. If the selected color setting is an x-y chromaticity value, the automatically determined vibrancy value may be based on the distance between the selected x-y chromaticity value and the black-body curve.