Vehicle Windshield Collision Mark Projection System
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Solution Overview
Problem
The safety of vehicle travel heavily relies on the driver's ability to recognize potential collisions and take evasive actions, especially in scenarios where automatic operation is engaged, necessitating an effective system for early detection and visualization of moving bodies around the vehicle.
Innovation Solution
A display device integrated with a collision predictor and a see-through display member, such as a projector on the windshield, which detects moving bodies and predicts collisions, displaying a collision-position mark and a delineator mark to guide the driver's attention towards potential hazards, stopping the display when evasive actions are taken or the collision risk diminishes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a liquid crystal display is used for route guidance, then the driver can obtain navigation information, but the driver's ability to visually check the traveling direction is reduced
Solution Approach 1:
The patent uses the windshield as an intermediary surface to display collision position marks and moving body information. By projecting images onto the windshield, the system provides navigation and safety information without blocking the driver's direct view of the road, thus mediating between information delivery and visual clarity requirements
Solution Approach 2:
The system transitions from traditional 2D dashboard displays to a 3D spatial display on the windshield, utilizing the windshield's surface as an additional dimension for information presentation. This allows multiple types of information (collision marks, moving bodies, route guidance) to be displayed in the driver's forward view without occupying dashboard space
2Ease of operation
If automatic operation systems are implemented, then driver burden is reduced, but driver awareness of potential collisions decreases
Solution Approach 1:
The system provides continuous feedback to the driver by displaying collision position marks and moving body information on the windshield. This feedback loop maintains driver awareness of the operational environment even when automatic operations are active, allowing the driver to monitor system performance and intervene when necessary
Solution Approach 2:
The collision predictor performs preliminary analysis of potential collision risks and displays warning marks before actual collisions occur. This preliminary action allows the driver to maintain situational awareness and prepare for potential evasive maneuvers, bridging the gap between automatic operation and driver responsibility
3Loss of time
If early collision warning systems are implemented, then driver response time is improved, but system complexity increases
Solution Approach 1:
The system merges multiple functions (collision prediction, moving body detection, route guidance display) into a single integrated display on the windshield. By combining these functions, the system reduces overall complexity compared to having separate systems for each function, while still providing comprehensive safety warnings and navigation information
Solution Approach 2:
The system creates simplified visual representations (collision position marks, delineator marks) that copy essential collision risk information in an easily interpretable format. These graphical copies provide immediate visual cues to drivers without requiring complex data processing or interpretation, thus reducing the cognitive complexity burden on the driver
Data Source
AI summary
Provided is a display device for a vehicle. The display device includes a display member and a collision predictor. The collision predictor detects one or more moving bodies on and around a course of the vehicle, and predicts collision of the vehicle with the one or more moving bodies detected, and a position of the collision. The display member displays a collision-position mark at a display position in a visual field of a driver, on a condition that the collision of the vehicle with any one of the one or more moving bodies is predictable. The display position is superimposed on the predicted position of the collision. The display member displays a delineator mark that associates the collision-position mark with the relevant one of the one or more moving bodies detected.