Head-Up Display POI Projection for Driver Attention
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Solution Overview
Problem
Current driver assistance systems require drivers to divert their attention from the road to interpret navigation information, including points of interest (POIs), which can lead to distraction and reduced road safety.
Innovation Solution
A method and system that uses a head-up display to provide intuitive, eye-readable information about POIs by projecting icons and pointers onto the road surface, adjusting their appearance based on distance and speed, allowing drivers to maintain focus on the road while receiving proximity and direction cues without needing to interpret numerical values or text.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If navigation information including POIs is displayed in a head down display or on a screen, then information can be presented to the driver, but the driver must divert attention from the road causing distraction and reduced road safety
Solution Approach 1:
The patent transitions navigation information from a traditional 2D head-down display to a 3D spatial representation projected onto the road surface through the head-up display. POIs are displayed at their actual spatial locations in the environment, creating a three-dimensional information space that aligns with the driver's natural line of sight and eliminates the need to look down at the dashboard.
Solution Approach 2:
The head-up display acts as an intermediary device that projects navigation information directly into the driver's field of view through the windshield or transparent display surface. This intermediary system bridges the gap between the navigation system and the driver without requiring the driver to shift attention to a separate display device.
2Loss of information
If the driver looks at a central information display or combination instrument to read POI information, then information can be obtained, but attention is diverted from the road
Solution Approach 1:
The patent creates an equipotential information environment where navigation information is presented at the same visual level as the road environment. By projecting POIs onto the road surface at their actual locations, the information becomes part of the driving scene itself, eliminating the need for the driver to shift focus between different planes (road vs. dashboard display).
Solution Approach 2:
The head-up display system automatically presents navigation information in the driver's field of view without requiring active engagement or interpretation. The system self-adjusts to maintain information visibility based on vehicle speed and position, allowing the driver to passively receive information while maintaining natural driving attention.
3Loss of information
If navigation information is displayed in text form or with numerical values, then detailed information can be provided, but the driver must interpret and understand the information increasing cognitive load
Solution Approach 1:
The patent employs color-coded icons and visual indicators to represent different categories of POIs and their relative positions. Instead of text labels requiring reading and interpretation, the system uses intuitive color and shape coding that allows drivers to quickly comprehend information at a glance, reducing cognitive processing requirements.
Solution Approach 2:
The system creates visual copies of POI locations directly in the driver's field of view by projecting icons onto the road surface at the actual positions of the points of interest. This spatial copying eliminates the need for abstract text representation and allows drivers to directly associate the displayed information with the corresponding real-world locations.
4Loss of time
If POI information is displayed early to allow timely maneuvers, then drivers have sufficient time to react, but the information must be displayed over a longer distance or time period
Solution Approach 1:
The patent implements dynamic adjustment of the display system based on vehicle speed and distance to POIs. As the vehicle approaches a POI, the system automatically adjusts the display timing and position to ensure information is visible for the optimal duration and distance, allowing timely driver reaction without requiring excessively early or prolonged display.
Solution Approach 2:
The system performs preliminary display actions by showing POI information at optimized distances and times before the vehicle reaches the point of interest. The head-up display calculates and presents information in advance at appropriate intervals, allowing drivers to prepare for upcoming maneuvers without being overwhelmed by premature or excessive early warnings.
Data Source
AI summary
A driver assistance system, a computer program product, a signal sequence, a vehicle and a method for providing information to a user of a vehicle are provided in this disclosure. In particular, the present disclosure relates to an intuitively comprehensible announcement associated with a point of interest (POI) for the user.