Multichannel Luminaire Color Coefficient Matrix Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Single channel luminaires struggle to mimic natural light effectively, leading to inconsistent lighting conditions and excessive energy consumption, as they cannot account for the various characteristics of natural light beyond brightness.
Innovation Solution
Multichannel luminaires controlled by a color coefficient matrix (CCM) that uses sensor feedback and linear optimization to adapt lighting conditions, combining artificial and natural light for uniform distribution and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If single channel luminaires are used to illuminate an area, then the lighting system is simple and cost-effective, but the ability to mimic natural light is insufficient and lighting consistency deteriorates
Solution Approach 1:
The luminaire is divided into multiple independent light channels (first light channel, second light channel, third light channel) that can be controlled separately. Each channel emits light with different characteristics (e.g., different color temperatures or spectral compositions), allowing the system to mimic natural light by adjusting the intensity ratio of these segmented channels based on ambient light conditions.
Solution Approach 2:
The luminaire transitions from a static single-channel design to a dynamic multi-channel system where the intensity of each light channel is continuously adjustable. The controller dynamically modifies the output of each channel based on sensor feedback about ambient light conditions, enabling the system to adapt and mimic natural light variations throughout the day.
2Illumination intensity
If single channel luminaires are used, then energy consumption is reduced, but lighting consistency and natural light mimicry deteriorate
Solution Approach 1:
Different light channels are assigned specific spectral or color temperature characteristics that correspond to different portions of the natural light spectrum. By adjusting the intensity distribution across these channels with different local qualities, the system achieves consistent natural light mimicry while avoiding unnecessary energy consumption from uniform high-intensity illumination.
Solution Approach 2:
The controller changes the operational parameters (intensity levels) of individual light channels based on ambient light conditions. Rather than maintaining constant high power output, the system dynamically adjusts parameters to match natural light variations, achieving consistent lighting quality while reducing overall energy consumption during periods when ambient light is sufficient.
3Illumination intensity
If multichannel luminaires with CCM control are implemented, then natural light mimicry and uniform distribution are improved, but device complexity increases
Solution Approach 1:
A sensor (such as a photodetector or ambient light sensor) continuously monitors the ambient light conditions in the environment. The controller receives this feedback signal and uses it to automatically adjust the intensity ratios of the different light channels, ensuring uniform light distribution and natural light mimicry without requiring complex manual calibration or user intervention.
Solution Approach 2:
The luminaire incorporates an integrated control system that autonomously manages the multi-channel light output based on ambient conditions. The controller automatically calculates the appropriate intensity distribution for each channel using the color coefficient matrix and sensor feedback, eliminating the need for external complex control equipment or manual adjustment mechanisms.
Data Source
AI summary
The described embodiments relate to multichannel luminaires (102, 212, 404) that employ a color coefficient matrix (CCM) that can be used to adjust an operation of the multichannel luminaires according to their contribution of light to an area (112, 402). The CCM can be generated based on images captured within the area and/or a software simulation that approximates the contribution of light from the multichannel luminaires to the area. Once the CCM has been generated, the CCM can be used to compensate control signals to each multichannel luminaire in order to provide more accurate color rendering and uniform light distribution. Furthermore, feedback from embedded sensors (206) in the multichannel luminaires and/or sensors (116, 208, 210, 418) in the area can provide further basis for compensating control signals according to the qualities of the natural and artificial light entering the area, and the effects of different surfaces (128) on the light.