Multi-Focal AR Display for Vehicle Infrastructure Wayfinding
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Solution Overview
Problem
Current vehicle displays do not effectively present infrastructure information such as street names and point-of-interests (POIs) to drivers, making it difficult for them to locate these while driving.
Innovation Solution
A system and method using a multi-focal plane augmented reality display that receives infrastructure and vehicle-location data to display street addresses, POIs, and other infrastructure information in real-time, adjusting the virtual image based on the driver's eye position and vehicle proximity to the infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional vehicle displays are used to present infrastructure information, then the display system is simple and easy to manufacture, but the driver cannot effectively locate and identify street addresses and POIs while driving
Solution Approach 1:
The patent transitions from traditional 2D flat displays to a multi-focal plane augmented reality display that overlays infrastructure information in multiple depth layers. This allows street addresses and POIs to be presented in 3D space aligned with the actual road environment, enabling drivers to locate infrastructure more effectively without diverting attention from the road.
Solution Approach 2:
The patent introduces an augmented reality display system as an intermediary between the driver and infrastructure information. This mediator processes vehicle location data, map data, and driver eye position to dynamically present relevant infrastructure information at appropriate locations and times, improving information delivery while maintaining driving safety.
2Loss of information
If a multi-focal plane augmented reality display is used to present infrastructure information, then the driver's ability to locate infrastructure is improved, but the device complexity increases
Solution Approach 1:
The patent divides the display system into multiple focal planes, each dedicated to presenting specific types of infrastructure information at different depths. This segmentation allows the complex AR display to be managed as separate functional layers, with each plane handling specific information (e.g., street addresses on one plane, POIs on another), thereby organizing complexity into manageable segments.
Solution Approach 2:
The patent implements dynamic adjustment of the virtual image based on real-time driver eye position and vehicle location. The display system continuously adapts its content and positioning according to driver gaze direction and vehicle movement, optimizing information delivery while managing system complexity through adaptive algorithms that respond to changing conditions.
3Loss of information
If the virtual image is adjusted based on driver's eye position and vehicle proximity, then the information relevance is improved, but the measurement and control difficulty increases
Solution Approach 1:
The patent implements a feedback loop that continuously monitors driver eye position using eye-tracking sensors and vehicle proximity using GPS and map data. This feedback information is processed to dynamically adjust the virtual image positioning and content, ensuring information relevance while managing measurement complexity through established sensing technologies and processing algorithms.
Data Source
AI summary
A method for displaying infrastructure information on a multi-focal plane augmented reality display of a vehicle includes receiving infrastructure data. The infrastructure data includes information about a location of at least one infrastructure along a route of the vehicle. The method further includes receiving vehicle-location data. The vehicle-location data includes information about a location of the vehicle. The method further includes determining a position of the vehicle relative to the location of the least one infrastructure using the infrastructure data and the vehicle-location data. The method further includes transmitting a command signal to the multi-focal plane augmented reality display to display a virtual image showing the infrastructure information of the infrastructure on the multi-focal plane augmented reality display.