Road lighting

By using light sources, detectors and processor configurations in road lighting systems, adaptive lighting and image projection are solved, and the problem of difficult pedestrian recognition by motor vehicle drivers is improved, pedestrian visibility is reduced and the risk of traffic accidents is reduced.

CN115802565BActive Publication Date: 2025-08-08LUMILEDS LLC
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Patent Information

Application Number
CN202211630530.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2018-12-20
Filing Date
2018-12-21
Publication Date
2025-08-08
Estimated Expiration
2038-12-21

AI Technical Summary

Technical Problem

Motor vehicle drivers have difficulty identifying and avoiding pedestrians or cyclists in a timely manner under various roads and lighting conditions, especially on marked roads or crosswalks without built-in signal lights and spotlights, resulting in potential traffic accident risks.

Method used

A road lighting system configured with one or more light sources, detectors, processors and controllers provides point illumination or image projection to improve pedestrian visibility, including LED arrays and laser systems, uses cameras to detect pedestrians and adjust the beam in real time, and combines V2X communications and imaging processors to provide vertical and horizontal illumination to ensure pedestrian visibility in crossroads.

Benefits of technology

It improves the visibility of pedestrians under various lighting conditions and reduces the occurrence of traffic accidents, especially in areas without built-in signal lights and spotlights. The adaptive lighting system ensures that the driver recognizes pedestrians in a timely manner and takes avoidance measures.

✦ Generated by Eureka AI based on patent content.
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Abstract

Systems, devices, and methods are disclosed in which one or more light sources, detectors, processors, and controllers are configured such that light from the one or more light sources enhances the ability of a human or automated vehicle driver to identify and avoid pedestrians. The one or more light sources can provide spot illumination to a moving object or pedestrian on a road surface, with the spot illumination following the moving object or pedestrian along a portion of the road surface. The one or more light sources can project an image onto the ground or other surface. The light source can be carried by the pedestrian or on a personal vehicle used by the pedestrian. The light source can be stationary and provide illumination for a crosswalk.
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