Camera-Based Parking Assist With Multi-Stage Position Registration
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Solution Overview
Problem
Existing vehicle parking assist apparatuses struggle to accurately realize the relationship in position between the vehicle and the 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 that acquires and registers parking lot information multiple times during the parking process, ensuring that the relationship in position between the vehicle and the parking lot is accurately realized by comparing current and registered information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the vehicle moves to be parked in the parking lot, then the parking position changes, but the relationship in position between the vehicle and the parking lot varies to a large extent, leading to inaccurate parking
Solution Approach 1:
The system performs preliminary registration of parking lot information when the vehicle stops by the parking lot, before actual parking occurs. This preliminary action captures the spatial relationship between the vehicle and parking lot at a known reference point, which is then used to guide the parking maneuver and compensate for position variations during movement.
Solution Approach 2:
The system compares current parking lot information with registered parking lot information to realize the relationship in position between the vehicle and parking lot. This feedback mechanism continuously monitors and adjusts the parking process based on the comparison results, enabling accurate parking despite position variations during vehicle movement.
2Extent of automation
If the vehicle is autonomously moved to be parked in the parking lot, then parking automation is achieved, but the relationship in position between the vehicle and the parking lot cannot be accurately realized
Solution Approach 1:
The autonomous parking system incorporates a feedback loop that compares current parking lot information with previously registered information. This comparison enables the system to realize the relationship in position between the vehicle and parking lot, providing the measurement precision needed for accurate autonomous parking without manual intervention.
Solution Approach 2:
The system performs preliminary registration of the parking lot environment and vehicle position relationship before autonomous parking begins. This preliminary action creates a reference framework that guides the autonomous parking process, enabling the system to maintain position relationship accuracy throughout the automated maneuver.
3Device complexity
If parking lot information is acquired only once, then the process is simple, but the relationship in position between the vehicle and the parking lot cannot be accurately realized when the vehicle moves
Solution Approach 1:
The system acquires parking lot information at multiple stages: initially when the vehicle stops by the parking lot, and again when parking is completed. This multi-stage information acquisition creates a feedback loop that tracks position changes, enabling accurate realization of the vehicle-parking lot relationship throughout the parking process without excessive complexity.
Solution Approach 2:
The system performs preliminary information acquisition when the vehicle stops by the parking lot, establishing a baseline reference. This preliminary action is complemented by subsequent information acquisition during parking completion, creating a simple yet effective multi-stage process that maintains measurement precision without unnecessary complexity.
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.