Road Projection Interface for Autonomous Driving Intent Communication
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Solution Overview
Problem
Existing autonomous driving technologies face challenges in notifying other road users of future actions, leading to a lack of reassurance about the autonomous driving device's intentions.
Innovation Solution
A processing system that projects a notification image onto the road, including a boundary image indicating a moving allowable area for other road users and a trajectory image showing the planned path of the autonomous driving device, with different display modes based on distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If an image is projected on the road surface near other moving objects to notify them, then other road users can be alerted of the autonomous driving device's presence, but the future actions and intentions of the autonomous driving device cannot be effectively communicated
Solution Approach 1:
The notification image is segmented into multiple functional components: a trajectory image showing the planned path, a boundary image defining the moving allowable area, and various indicator images (priority, caution, prohibition). This segmentation allows different aspects of future actions to be communicated separately and clearly, resolving the information loss problem while maintaining manageable system complexity
Solution Approach 2:
The system projects the notification image in advance of the autonomous driving device's actual movements. The trajectory image displays the planned route ahead of time, and the boundary image pre-defines the area where other road users may move. This preliminary visualization of future actions allows other road users to anticipate and prepare for upcoming maneuvers, effectively communicating intentions before they occur
2Reliability
If a detailed notification image with multiple components is projected to show trajectory and boundary information, then reassurance about future actions is provided, but the projection system complexity increases
Solution Approach 1:
Different regions of the notification image have different visual properties and information densities. The trajectory image uses specific colors and patterns to indicate the path, while the boundary image uses distinct visual characteristics to define the moving allowable area. Indicator images are placed at specific locations with localized information. This local differentiation allows comprehensive safety information to be conveyed without requiring uniform complexity throughout the entire system
Solution Approach 2:
The notification image is dynamically adjusted based on the autonomous driving device's current state, planned maneuvers, and environmental context. The trajectory and boundary images are updated in real-time as the vehicle's intentions change. Display modes are dynamically selected based on the situation, allowing the system to provide comprehensive safety information when needed while reducing complexity in less critical scenarios
3Loss of information
If the boundary image is placed outside the trajectory image to indicate moving allowable area, then other road users can understand where they can move, but the visual clarity may be reduced due to multiple overlapping elements
Solution Approach 1:
The boundary image is deliberately positioned asymmetrically relative to the trajectory image, specifically outside the trajectory in the width direction of the road. This asymmetric placement creates a clear spatial relationship where the trajectory image represents the autonomous vehicle's path and the boundary image represents the available space for other road users. The asymmetric arrangement prevents overlapping and confusion, enhancing visual recognition accuracy while conveying complete spatial information
Data Source
AI summary
A processing system for performing processing regarding autonomous driving of an autonomous driving device is provided. The processing system includes a processor configured to obtain a planned driving route of the autonomous driving device, and project a notification image onto a road along the planned driving route. The notification image includes a boundary image that indicates a boundary of a moving allowable area where an other road user is allowed to move, the boundary facing a driving area where the autonomous driving device travels, and a trajectory image that indicates a planned trajectory, as the driving area, that the autonomous driving device follows according to the planned driving route. The boundary image is located outside the trajectory image in a width direction of the road. The boundary image has different display modes depending on a distance from the autonomous driving device on the planned driving route.