Camera-Based Parking Assist for Accurate Vehicle-Lot Positioning
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Solution Overview
Problem
Existing vehicle parking assist apparatuses struggle to accurately realize the relationship in position between a vehicle and a parking lot as the vehicle moves, leading to inaccurate parking due to variations in the relationship between the vehicle and the parking lot over time.
Innovation Solution
A vehicle parking assist apparatus equipped with at least one camera and an electronic control unit, which acquires parking lot information from camera images at three distinct points: when the vehicle stops by the parking lot, when parking is completed, and before completing parking after starting to move, allowing for accurate comparison and realization of the vehicle's position relative to the parking lot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle moves to be parked in the parking lot, then the parking assist function can be executed, but the relationship in position between the vehicle and the parking lot varies leading to inaccurate parking
Solution Approach 1:
The system performs preliminary acquisition of parking lot information when the vehicle stops by the parking lot before the actual parking maneuver. This preliminary action captures the initial spatial relationship between the vehicle and parking lot, which is then used as a reference during the parking execution phase to maintain position accuracy despite vehicle movement.
Solution Approach 2:
The system acquires parking lot information multiple times during the parking process (when the vehicle stops by the parking lot and when parking is completed). By comparing the initially acquired parking lot information with the currently acquired parking lot information, the system provides feedback to accurately realize the relationship in position between the vehicle and the parking lot throughout the movement process.
2Adaptability or versatility
If the relationship in position between the vehicle and the parking lot varies to a large extent, then the vehicle can be moved to different positions, but the position relationship cannot be accurately realized
Solution Approach 1:
The system performs multiple acquisitions of parking lot information at different stages (when the vehicle stops by the parking lot and when parking is completed). By comparing the initially acquired parking lot information with the currently acquired parking lot information, the system provides feedback to accurately realize the relationship in position between the vehicle and the parking lot, enabling precise parking at flexible positions.
Solution Approach 2:
The system captures the parking lot information in advance when the vehicle stops by the parking lot, establishing a baseline spatial relationship. This preliminary data is then used as a reference to track and maintain accurate position relationships even as the vehicle moves to different parking positions within the lot.
Data Source
AI summary
A vehicle parking assist apparatus acquires and registers first information on a parking lot from a camera image when a vehicle stops by the parking lot. The vehicle parking assist apparatus acquires and registers second information on the parking lot from the camera image when completing parking the vehicle in the parking lot by a parking assist control. The vehicle parking assist apparatus acquires the information on the parking lot as current parking lot information from the camera image when the vehicle stops by the parking lot after registering the first and second parking lot information and executes the parking assist control with realizing a relationship in position between the vehicle and the parking lot by comparing the current parking lot information with the registered parking lot information.