Vehicle Display Mark Clustering for Dense Obstacle Alerts
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Solution Overview
Problem
Existing vehicle display systems struggle to effectively alert drivers to obstacles, especially in situations with a large number of obstacles, which can lead to difficulty in visibility and increased risk.
Innovation Solution
A vehicle display device and system that acquires obstacle information and displays individual marks for close or approaching obstacles and cluster marks for multiple obstacles in close proximity, using a head-up display or instrument panel, to prompt caution and reduce driver distraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If display images are shown for all obstacles, then driver awareness of obstacles is improved, but visibility of individual obstacles deteriorates when there are many obstacles
Solution Approach 1:
The patent segments obstacle information into two categories: individual obstacles (displayed with individual marks) and clustered obstacles (displayed with a single cluster mark). This segmentation allows the system to provide comprehensive obstacle information while maintaining visibility by grouping multiple obstacles together rather than displaying separate marks for each one.
Solution Approach 2:
The patent merges multiple obstacle display marks into a single cluster mark when obstacles are located near each other. This merging approach consolidates information about multiple obstacles into one visual element, preventing the display from becoming cluttered and maintaining driver visibility while still conveying that multiple obstacles are present.
2Reliability
If individual marks are displayed for all obstacles, then caution toward each obstacle is prompted, but driver distraction increases with large number of obstacles
Solution Approach 1:
The system segments the caution prompt into two levels: individual caution for single obstacles and grouped caution for multiple obstacles. By using cluster marks for grouped obstacles, the system maintains reliable caution prompting while reducing the total number of display elements that could distract the driver.
Solution Approach 2:
Instead of displaying individual marks for every single obstacle (excessive action), the system selectively displays individual marks only for obstacles that are far from others, and uses cluster marks for groups of nearby obstacles (partial action). This selective approach maintains necessary caution while minimizing driver distraction.
Data Source
AI summary
A vehicle display device includes: an obstacle information acquisition section configured to acquire information relating to a plurality of obstacles in surroundings of a vehicle; and a mark display section configured to display a predetermined individual mark prompting caution toward an individual obstacle among the plurality of obstacles by superimposed display in a display region inside a vehicle cabin, and to display a predetermined cluster mark prompting caution toward a plurality of the obstacles by superimposed display in the display region in a case in which a predetermined condition has been satisfied.