Edge-Assisted HD Map Delivery for Predicted Route Changes
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Solution Overview
Problem
Conventional HD map delivery systems are inadequate in dynamically updating maps in autonomous vehicles when drivers change their route or add stops, as they rely on pre-loaded or cached maps for planned paths, failing to efficiently handle route changes in real-time.
Innovation Solution
An edge device that monitors a vehicle occupant's head pose and location to determine potential routes different from the original route, transmitting corresponding HD map information in a low-latency manner to ensure seamless autonomous driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If pre-loading or caching HD map for planned path is used, then storage efficiency is improved, but adaptability to route changes deteriorates
Solution Approach 1:
The system performs preliminary actions by monitoring driver head pose and predicting potential route changes before they occur. By analyzing head pose deviations from the original route in advance, the system proactively prepares and transmits HD map information for potential alternative routes, ensuring the vehicle can adapt to route changes without significant delays while maintaining efficient storage usage.
2Loss of information
If whole city-level HD map is downloaded or cached, then map coverage is improved, but storage requirement deteriorates
Solution Approach 1:
Instead of uniformly caching entire city-level HD maps, the system applies local quality by transmitting only the specific portions of HD maps that correspond to potential route areas. Based on head pose analysis and location data, the system identifies and delivers only the relevant map segments needed for predicted alternative routes, maintaining comprehensive map coverage while significantly reducing storage requirements.
3Adaptability or versatility
If HD map is transmitted for potential route, then route change responsiveness is improved, but communication latency deteriorates
Solution Approach 1:
The system performs preliminary actions by continuously monitoring driver head pose and predicting potential route changes before they occur. This advance detection allows the system to initiate HD map transmission for alternative routes in advance, so that by the time the driver actually changes route, the map information is already available at the vehicle, effectively eliminating communication latency during the route change execution.
Data Source
AI summary
An edge device for providing an HD map to a vehicle is provided. The edge device includes a controller programmed to: obtain a head pose of an occupant of a vehicle; obtain a location of the vehicle following an original route; analyze the head pose and the location of the vehicle to determine a potential route for the vehicle, the potential route being different from the original route, and transmit HD map information corresponding to the potential route to the vehicle in response to determining the potential route.