Road Surface Projection Control for Vehicle Glare Suppression
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Solution Overview
Problem
Existing road surface rendering technologies may cause intense light reflection from road surfaces like metal manholes or fallen objects, leading to glare for vehicle drivers.
Innovation Solution
A vehicle system with a projection member, controller, and detection device that detects bright spots on the rendered image and adjusts light projection intensity or stops projection when bright spots are detected to prevent glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If light projection for road surface rendering is performed toward the road surface ahead of the vehicle, then the driver receives information on vehicle traveling via the road surface, but intense light reflection from road surface features (metal manholes, fallen objects) causes glare for the driver
Solution Approach 1:
The detection device captures images of the road surface rendered image and provides feedback to the controller. The controller analyzes the images to detect bright spots indicating excessive reflection, and adjusts the light projection accordingly by suppressing or reducing projection in areas with high reflectivity, thereby eliminating glare while maintaining information transmission
Solution Approach 2:
The system dynamically changes the light projection parameters (intensity, distribution) based on detected road surface conditions. When bright spots are detected, the controller modifies the projection parameters to reduce intensity in affected areas, transforming the projection from a fixed pattern to an adaptive pattern that responds to surface reflectivity variations
2Illumination intensity
If light projection intensity is increased to improve visibility of rendered information, then the rendered image becomes more visible, but reflection from certain road surfaces becomes more intense causing glare
Solution Approach 1:
The system applies different light projection qualities to different regions of the road surface. Based on detection results, the controller selectively suppresses or reduces light projection in specific local areas where bright spots are detected, while maintaining normal or enhanced projection in areas without reflection problems, creating a spatially varying projection pattern
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
Reduces intense light reflection, improving road surface rendering by ensuring the driver can clearly see the projected information without glare from road surface features.
Implementation Method 1
various patterns are rendered on a road surface where a vehicle is traveling by projecting light from the vehicle
Data Source
AI summary
A vehicle with a road surface rendering function includes a projection member, a controller, and a detection device. The projection member is configured to project perform light projection for road surface rendering at least toward a road surface ahead of the vehicle. The controller is configured to control the light projection for the road surface rendering by the projection member. The detection device is configured to perform detection of a road surface rendered image rendered on the road surface by the projection member. The controller is configured to determine whether the road surface rendered image has a bright spot based on the detection of the road surface rendered image by the detection device. The controller is configured to suppress the light projection for the road surface rendering by the projection member when the road surface rendered image has the bright spot.