Road Surface Display Device Overlap Detection
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Solution Overview
Problem
Existing road surface display devices struggle to allow pedestrians to accurately determine the safety level of a road when multiple overlapping or proximate road surface images from different vehicles are displayed, leading to confusion due to mixed or multiple safety level indicators.
Innovation Solution
A vehicle-mounted road surface display device that includes a detection system to identify overlapping or proximate images from other vehicles and adjusts the display to show only the image indicating the shorter expected arrival time, ensuring a clear safety level is displayed on the road surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple road surface images are displayed on the road surface to show expected arrival zones, then the information provided to pedestrians is comprehensive, but the clarity of safety level determination is reduced due to overlapping or proximate images from multiple vehicles
Solution Approach 1:
The patent applies local quality by making each road surface image's display characteristics (brightness, color saturation, visibility) dependent on its spatial relationship with other images. Specifically, images are adjusted locally based on whether they overlap or are proximate to other images, ensuring that the most relevant safety information is displayed with highest clarity in each local region of the road surface
Solution Approach 2:
The patent changes display parameters (brightness, color saturation, visibility) of road surface images dynamically based on the detected presence of overlapping or proximate images from other vehicles. This parameter adjustment ensures that when multiple images are present, the display characteristics are modified to prevent confusion while maintaining comprehensive safety information
2Quantity of substance
If road surface images from multiple vehicles are displayed simultaneously, then the coverage of safety information is increased, but the reliability of safety level determination is reduced due to color mixing and visual confusion
Solution Approach 1:
The patent applies preliminary anti-action by detecting the presence of overlapping or proximate images from other vehicles before final display, and preemptively adjusting the display characteristics to prevent visual confusion. The detection portion identifies potential conflicts, and the display adjustment portion applies countermeasures (brightness reduction, color saturation adjustment) before the confusing display state can occur
Solution Approach 2:
The patent makes the display system dynamic by continuously monitoring the road surface for overlapping or proximate images from other vehicles and adjusting display characteristics in real-time. The display parameters are not fixed but change dynamically based on the detected spatial relationships between multiple images, ensuring reliable safety information display under varying conditions
Data Source
AI summary
A road surface display device mounted to an own vehicle includes: a road surface image control portion generating a road surface image which is displayed on a road surface ahead of the own vehicle and includes images each indicating an expected arrival zone where the own vehicle is expected to arrive at an expected arrival time; a detection portion obtaining display states of a different vehicle image, which is a road surface image displayed by a different vehicle, and an own vehicle image, which is the road surface image displayed by the own vehicle, and detecting a presence of overlapping or proximity between the two images; and a display adjustment portion, when the presence of overlapping or proximity is detected, displaying an image indicating a shorter expected arrival time in a region where the presence of overlapping or proximity is detected on the road surface.