Rear-View Path Guidance for Vehicles Trapped by Front Obstacles
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Solution Overview
Problem
Existing image processing systems for vehicles fail to account for situations where a vehicle cannot move forward due to obstacles, leading to potential collisions with following vehicles or pedestrians during turns, especially in narrow roads.
Innovation Solution
An image processing system that includes rear image acquisition, display, and path calculation units to determine if an obstacle can be avoided, displaying a wide-angle rear image on the monitor when no forward path is possible, and providing warnings or steering instructions to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver backs up the vehicle to avoid an obstacle in front, then the vehicle can avoid the obstacle, but the vehicle may collide with a following vehicle or pedestrian on the rear side
Solution Approach 1:
The system performs preliminary detection of rear obstacles before the vehicle backs up. The image acquisition unit captures rear images, and the obstacle detection unit identifies obstacles in advance, allowing the driver to be warned before reversing action occurs, thus preventing collision with rear obstacles
2Reliability
If the driver focuses attention on avoiding obstacles in front, then the vehicle can avoid front obstacles, but the driver may fail to notice obstacles on the rear side
Solution Approach 1:
The system provides feedback to the driver about rear obstacles through the image display unit. By showing rear images on the display, the driver receives information about the rear situation without needing to divert attention from front obstacle avoidance, thus maintaining both front obstacle avoidance capability and rear situation awareness
3Ease of operation
If the vehicle enters a narrow road at a bad angle, then the vehicle may not be able to move forward, but restarting steering operation may not be sufficient to avoid obstacles
Solution Approach 1:
The system introduces an intermediary information display mechanism between the driver and the rear environment. By providing real-time rear images on the display, the driver can make more informed decisions about whether to backup or adjust steering, increasing the likelihood of successful obstacle avoidance without unnecessary reversing maneuvers
Data Source
AI summary
A movable apparatus including a rear image acquisition unit configured to acquire a rear image of the movable apparatus, a display unit to display the rear image from the rear image acquisition unit, and at least one processor or circuit configured to function as a path calculation unit configured to calculate an avoidance path for avoiding an obstacle in front, a display control unit configured to cause the display unit to display a rear image of a predetermined angle of field acquired by the rear image acquisition unit when the path calculation unit determines that there is no path in which the obstacle in front is able to be avoided or the movable apparatus enters a path into which the movable apparatus is not allowed to intrude, and a driving control unit to control a traveling direction of the movable apparatus based on an output of the path calculation unit.