Vehicle Exit Navigation Using Stored Entry Feature Points
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Solution Overview
Problem
Existing vehicle exit support systems fail to generate an exit path and enable automatic exiting from a parking lot due to the inability to detect the exit position, as there is no target frame or characteristic object present, unlike entry where a parking frame or garage can be detected.
Innovation Solution
An exit support device equipped with sensors and imaging devices recognizes feature points around the vehicle, estimates the positional relation between the vehicle and the exit region, and generates a path for automatic navigation to the exit, utilizing stored map information and user input to determine the exit orientation and position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle uses sensor-based feature point detection to determine exit position, then the ability to detect exit position without target frame is improved, but the measurement precision deteriorates due to lack of characteristic objects
Solution Approach 1:
The system performs preliminary action by storing map information about feature points and their positional relations around the parking lot during the entry phase. This pre-acquired data is then reused during exit to determine the vehicle's position and generate the exit path, enabling exit functionality without requiring characteristic objects at the exit location.
2Manufacturing precision
If the system stores detailed map information for path generation, then the path generation accuracy is improved, but the device complexity increases due to additional storage and processing requirements
Solution Approach 1:
The map information storage and processing system serves multiple functions: it stores feature point data for both entry and exit operations, enables path generation in both directions, and provides positional relation estimation. This multi-functionality justifies the added complexity by eliminating the need for separate systems for entry and exit operations.
Data Source
AI summary
An exit support method includes: acquiring a feature point present around a vehicle; estimating a positional relation between a current position of the vehicle and an entry region based on the feature point and setting information indicating a positional relation between a position of the entry region and a feature point present around the entry region; moving the vehicle to the entry region based on the positional relation; storing an entry start position of the vehicle at which the vehicle starts to move to the entry region in the setting information; and estimating, assuming that the entry start position stored in the setting information is an exit region of an exit destination, a positional relation between a current position of the vehicle and the exit region based on the feature point. The acquiring the path includes moving the vehicle to the exit region based on the positional relation.