Adaptive Lighting Apparatus Glare Reduction via Object Detection
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Solution Overview
Problem
Outdoor lighting systems, such as streetlights and parking lot lights, often generate glare that can negatively affect driver vision and pedestrian visibility, and existing solutions have not effectively addressed this issue.
Innovation Solution
A system comprising a light-emitting device mounted on a stationary structure with a control circuit that detects objects in its vicinity and varies the intensity or color of illumination in response to detected objects, specifically reducing light emission towards approaching vehicles or pedestrians to minimize glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If outdoor lighting systems use high intensity light sources to improve illumination, then lighting quality and visibility are improved, but glare is generated that negatively affects driver vision and pedestrian visibility
Solution Approach 1:
The patent applies dynamics by making the lighting system adaptive through motion detection. The lighting apparatus transitions from a static illumination system to a dynamic one that automatically adjusts its operation based on detected motion. When motion is detected, the system activates full illumination; when no motion is present, it reduces to ambient lighting levels, thereby eliminating glare while maintaining lighting quality when needed.
Solution Approach 2:
The patent implements parameter changes by varying the illumination intensity based on detected conditions. The system changes the light output parameter from high intensity (when motion is detected) to low ambient intensity (when no motion is present). This dynamic parameter adjustment resolves the contradiction by providing high illumination quality only when necessary, thereby preventing glare generation during periods of no activity.
2Object-affected harmful factors
If lighting intensity is reduced to eliminate glare, then driver vision and pedestrian visibility are protected, but illumination quality deteriorates
Solution Approach 1:
The system uses dynamics to switch between two operational states: a low-intensity ambient state for glare reduction and a high-intensity illumination state for quality lighting. The motion detection trigger dynamically transitions the system between these states, ensuring that lighting quality is maintained when needed while minimizing glare during unoccupied periods.
Solution Approach 2:
The lighting system operates in periodic cycles of ambient lighting and full illumination based on motion detection events. Rather than maintaining constant high intensity, the system alternates between low ambient operation and high-intensity illumination periods, achieving both glare reduction and lighting quality through this periodic activation pattern.
3Object-affected harmful factors
If motion detection and dynamic control systems are added to lighting apparatus, then glare is reduced through adaptive illumination, but device complexity increases
Solution Approach 1:
The patent implements feedback through motion detection that automatically triggers illumination changes. The system continuously monitors for motion and provides feedback control by adjusting light output accordingly. This feedback mechanism enables automatic glare control without requiring complex manual intervention or sophisticated control algorithms, thereby managing device complexity while achieving adaptive illumination.
Solution Approach 2:
The lighting system performs self-service by automatically detecting motion and adjusting its own illumination levels without external control. The motion detection capability enables the system to self-regulate its operation, eliminating the need for complex external control systems and reducing overall device complexity while maintaining effective glare control.
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 effectively reduces glare by dynamically adjusting light directionality and intensity based on object detection, improving visibility for drivers and pedestrians by tailoring illumination patterns according to detected objects and environmental conditions.
Implementation Method 1
A control circuit is operatively coupled to the at least one light-emitting device and configured to detect an object in a vicinity of the at least one light-emitting device
Data Source
AI summary
A system includes at least one light-emitting device configured to be mounted on a stationary structure, such as a lighting pole or parking structure. A control circuit is operatively coupled to the at least one light-emitting device and configured to detect an object in a vicinity of the at least one light-emitting device and to vary a characteristic of illumination produced by the at least one light-emitting device responsive to the detection of the object.