Canopy Luminaire Adaptive Lighting via Sensor Feedback
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Solution Overview
Problem
Existing canopy luminaires lack efficient light distribution and adaptive illumination solutions for vehicle bays, particularly in indicating the presence or absence of objects, which limits their functionality and effectiveness in providing adequate lighting.
Innovation Solution
A luminaire system comprising a housing with light diffusion panels and reflective surfaces, where light sources project light through emission surfaces, and a sensor-controlled system adjusts lighting characteristics based on the presence of objects in the vehicle bay, using different light patterns and colors to indicate occupancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional canopy luminaires are used, then basic lighting is provided, but light distribution efficiency is insufficient and adaptive illumination capability is lacking
Solution Approach 1:
The luminaire integrates multiple functions into a single device: it provides general illumination through the light diffusion panel, object detection through the sensor, and adaptive control through the controller. The system can operate in multiple modes (normal illumination and object-present illumination) based on sensor input, making it universally adaptable to different lighting conditions without requiring separate devices
Solution Approach 2:
The system incorporates a sensor that detects the presence of objects in the vehicle bay and feeds this information back to the controller. The controller then adjusts the illumination characteristics based on this feedback signal, creating a closed-loop control system that adapts lighting conditions to actual needs, thereby improving adaptability without proportionally increasing complexity
2Illumination intensity
If uniform light distribution is provided, then basic illumination is achieved, but visibility and functionality in different zones are insufficient
Solution Approach 1:
The light diffusion panel incorporates optical features with different characteristics in different zones. The first extraction zone has optical features configured to provide different light distribution characteristics compared to the second extraction zone. This allows different areas of the vehicle bay to receive appropriately tailored illumination intensities and patterns, improving overall light distribution efficiency while using a single integrated panel rather than multiple complex components
3Adaptability or versatility
If no object detection capability is integrated, then device simplicity is maintained, but functionality in indicating object presence is limited
Solution Approach 1:
The system merges the illumination function with the object detection and indication function into a single integrated luminaire unit. The sensor, controller, and light sources work together as one system where the same lighting infrastructure serves both illumination purposes and object presence indication purposes, reducing the need for separate detection devices and simplifying the overall system architecture
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides efficient and adaptive lighting for vehicle bays, enhancing visibility and functionality by adjusting light distribution and characteristics based on object presence, improving safety and operational efficiency.
Implementation Method 1
a light diffusion panel (104) disposed in the housing (102)
Implementation Method 2
a reflective surface (116) disposed in the housing (102) adjacent the light diffusion panel (104)
Data Source
AI summary
A luminaire includes a housing, a light diffusion panel, a reflective surface, and a plurality of light sources. The light diffusion panel includes a light source aperture, an edge surface bounding the light source aperture, and an emission surface. The emission surface includes first and second emission surface sections. The second emission surface section is disposed on an opposite side of the light source aperture from the first emission surface section. The reflective surface is disposed on a side of the light diffusion panel opposite the emission surface. The light sources project light into the light diffusion panel through the edge surface. The light sources include first and second light sources. The first light source projects light into the light diffusion panel and through the first emission surface section. The second light source projects light into the light diffusion panel and through the second emission surface section.