Street Light System with Image Processing for Pedestrian Safety
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Solution Overview
Problem
Existing street light systems do not adequately ensure the safety of passage for individuals, particularly in areas where coordination between lighting and pedestrian or vehicle movement is lacking.
Innovation Solution
A street light system that includes an image processing unit to generate person information from camera images and an illumination management unit to control lighting based on this information, ensuring safer passage by adjusting lighting states according to detected persons, vehicles, and events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If street light systems use coordinate-based control for area coverage, then lighting management efficiency is improved, but safety of passage for individuals is not adequately ensured
Solution Approach 1:
The patent introduces an image processing unit as an intermediary between the coordinate-based control system and the illumination control system. This unit processes images to detect persons and vehicles, extracting safety-relevant information that the original coordinate system approach missed. The intermediary translates visual data into control signals that prioritize individual safety while maintaining area-based management efficiency.
Solution Approach 2:
The patent replaces the purely coordinate-based mechanical control approach with an image processing-based detection system. Instead of relying solely on predefined coordinate areas, the system uses camera images processed by AI algorithms to detect persons and vehicles, enabling dynamic safety-based lighting adjustments that adapt to actual conditions rather than predetermined zones.
2Illumination intensity
If street lights illuminate all areas uniformly, then visibility is improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic lighting control that adjusts illumination intensity based on real-time detection of persons and vehicles. The system transitions from static uniform illumination to dynamic selective illumination, where lighting intensity and distribution change according to detected objects' positions, movements, and types, optimizing both visibility and energy efficiency.
Solution Approach 2:
The patent applies local quality by providing enhanced illumination specifically in areas where persons or vehicles are detected, rather than uniformly illuminating entire areas. The system adjusts lighting intensity locally around detected objects, ensuring adequate visibility for safety while reducing energy consumption in areas without presence of persons or vehicles.
3Ease of operation
If street light systems use predetermined lighting conditions, then control simplicity is maintained, but adaptability to individual safety needs decreases
Solution Approach 1:
The patent enables the street light system to self-adjust lighting conditions based on automatic detection and processing of image data. The image processing unit automatically identifies persons and vehicles, determines their positions and movements, and triggers appropriate lighting responses without manual intervention. This self-service capability maintains operational simplicity while dramatically improving adaptability to individual safety needs.
Solution Approach 2:
The patent implements a feedback loop where the system continuously monitors image data, detects persons and vehicles, and adjusts lighting conditions accordingly. The detection results feed back to the illumination control unit, which modifies lighting in real-time based on detected objects. This closed-loop feedback mechanism maintains simple operation while enabling sophisticated adaptive responses to varying safety conditions.
Data Source
AI summary
A street light system (100) includes street lights (101_1) to (101_20) that generate person information relating to a plurality of persons included in image information by processing the image information to be generated by a camera (111), and a management apparatus (102) that controls a lighting state of an illumination (113) provided in at least one of the street lights (101_1) to (101_20) by using a processing result of the image information.