Vehicle Display Overlay for Dense Obstacle Cluster 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 increased difficulty in visibility and driver awareness.
Innovation Solution
A vehicle display device and system that acquires obstacle information and displays individual marks for specific obstacles and cluster marks for groups of obstacles, with the type and number of marks determined by conditions such as obstacle proximity and vehicle distance, to enhance driver awareness without overwhelming the driver with excessive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If display images (marks) are displayed for all obstacles, then driver awareness of obstacles is improved, but visibility and driver awareness deteriorate when there are a large number of obstacles
Solution Approach 1:
The patent merges multiple individual obstacle marks into a single cluster mark when a predetermined condition is satisfied (e.g., when multiple obstacles are detected in a specific region). This combining approach reduces the number of display elements from multiple individual marks to a single aggregated mark, thereby improving visibility while maintaining obstacle information awareness.
Solution Approach 2:
The display system dynamically switches between displaying individual marks and cluster marks based on the number of obstacles and their spatial distribution. When obstacles are sparse, individual marks are displayed; when obstacles become dense, the system transitions to cluster marks. This dynamic adaptation resolves the contradiction by adjusting display complexity according to actual obstacle conditions.
2Loss of information
If individual marks are displayed for each obstacle, then specific obstacle information is provided, but driver awareness is reduced when there are many obstacles due to information overload
Solution Approach 1:
Multiple individual obstacle marks are merged into a single cluster mark that represents multiple obstacles. This merging preserves the information that obstacles exist in that region while avoiding the cognitive overload of displaying each obstacle separately, thus maintaining driver awareness even when many obstacles are present.
Solution Approach 2:
Instead of displaying complete individual information for all obstacles (excessive action), the system displays partial aggregated information through cluster marks when appropriate. This partial action approach provides sufficient information for driver awareness without the detrimental effect of complete individual display in dense obstacle scenarios.
3Ease of operation
If cluster marks are used for multiple obstacles, then visibility is improved, but specific obstacle information is lost
Solution Approach 1:
The system dynamically selects between individual marks and cluster marks based on obstacle density and spatial distribution. This dynamic switching ensures that individual obstacle information is preserved when it matters (sparse conditions) while using cluster marks for visibility when obstacles are dense, thus balancing information retention with driver awareness.
Solution Approach 2:
Different display approaches are applied to different spatial regions based on local obstacle conditions. In regions with sparse obstacles, individual marks provide detailed information. In regions with dense obstacles, cluster marks provide consolidated visibility. This local differentiation resolves the contradiction by applying the appropriate display mode to each local context.
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.