Vehicle Display Adjusting Facility Info by Lane Position
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Solution Overview
Problem
On multi-lane roads, it is challenging to safely display information on facilities close to oncoming lanes due to the proximity of running lanes to oncoming traffic, leading to potential safety hazards and inefficient use of display space.
Innovation Solution
A display device that adjusts the distance threshold for displaying facility information based on the position of the traveling lane and vehicle speed, ensuring only safely accessible facilities are highlighted, thereby suppressing unnecessary information and optimizing display space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If information on all facilities within a fixed distance is displayed, then complete information coverage is achieved, but display space is wasted and safety is compromised when facilities are inaccessible due to lane position
Solution Approach 1:
The patent applies dynamics by making the display distance threshold adjustable rather than fixed. The threshold dynamically changes based on the vehicle's current lane position, allowing the system to adapt to different driving scenarios. When the vehicle is in a lane closer to the road shoulder, facilities farther away are displayed; when in a lane closer to the oncoming lane, only nearer facilities are displayed, optimizing both information coverage and safety
Solution Approach 2:
The patent changes the parameter of display distance threshold based on lane position. By monitoring which lane the vehicle is currently in, the system adjusts the maximum distance for displaying facility information, ensuring that only accessible facilities are shown while preventing waste of display space on inaccessible facilities
2Loss of information
If information on facilities close to oncoming lane is displayed, then information completeness is improved, but driver safety deteriorates due to potential distraction from inaccessible facilities
Solution Approach 1:
The system dynamically adjusts the display based on real-time lane position detection. When the vehicle is detected to be in a lane closer to the oncoming lane, the system automatically restricts facility information display to only those facilities that are safely accessible, preventing driver distraction while maintaining information completeness for relevant facilities
Solution Approach 2:
The system implements feedback by continuously monitoring the vehicle's lane position and using this information to control what facility information is displayed. The lane position detection provides feedback that triggers appropriate display adjustments, ensuring that only facilities accessible from the current lane are shown, thereby eliminating distracting information
3Device complexity
If a fixed distance threshold is used for facility display, then system complexity is reduced, but display efficiency deteriorates due to showing inaccessible facilities
Solution Approach 1:
Rather than using a simple fixed threshold, the patent implements a dynamic threshold that automatically adjusts based on lane position. This adds some complexity to the control system but dramatically improves display space utilization by ensuring that displayed facilities are actually accessible from the vehicle's current position, eliminating waste of display space
Data Source
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AI summary
A display device includes a present position information obtaining unit and a display control unit. The present position information obtaining unit measures a present position of a moving body to obtain present position information thereof. The display control unit displays information on a facility on a transparent member positioned between a viewpoint of a traveler in the moving body and scenery in traveling direction of the moving body based on the present position information. The facility herein is included in the scenery and exists within a first predetermined distance from the present position of the moving body. The display control unit changes the first predetermined distance based on a position of a travelling lane on a road where the moving body is travelling.