Arc-Based Parking Guidance Markers for Omni-Directional Vehicle Alignment
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Solution Overview
Problem
Existing parking guidance systems are limited to perpendicular and longitudinal parking, lack flexibility in guiding various types of parking, and require precise alignment with a straight line-based guidance, making it difficult for drivers to park vehicles without repeated attempts, especially when the guidance line does not match the parking slot line.
Innovation Solution
A parking guidance apparatus using area-based and point-based markers within an around-view monitoring (AVM) image-based system, allowing for omni-directional parking guidance, enabling drivers to easily park by setting a parking position based on an area concept and adjusting markers intuitively, regardless of the vehicle's heading angle, and facilitating full turn steering for reduced movement distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a straight line-based guidance line is used, then the guidance system is simple to implement, but the driver must repeatedly operate the vehicle to align the guidance line with the parking slot line
Solution Approach 1:
The patent replaces straight line-based guidance with curved arc-based guidance lines that naturally match the vehicle's turning path during parking. The guidance line follows a circular arc trajectory that accounts for the vehicle's steering geometry, allowing the driver to follow the curved guide directly into the parking slot without repeated alignment adjustments.
Solution Approach 2:
The guidance system dynamically adjusts the guidance line based on the vehicle's current position, steering angle, and speed. The arc-based guidance line is recalculated in real-time to maintain optimal alignment with the parking slot, adapting to the vehicle's motion state rather than using a fixed straight line approach.
2Device complexity
If the guidance line is set at a fixed distance of about 1 meter from the parking slot, then the guidance system is simple to design, but it cannot accommodate various types of parking scenarios
Solution Approach 1:
The system dynamically changes multiple parameters including the distance offset from the parking slot, the curvature radius of the guidance arc, and the guidance line angle based on the detected parking slot type (parallel, perpendicular, angled). This allows the same arc-based guidance methodology to adapt to various parking configurations without requiring fundamentally different system designs.
3Ease of operation
If the vehicle must enter parallel to the parking slot line, then the guidance line can be straightforward, but the driver lacks operational freedom and must make precise alignment
Solution Approach 1:
The arc-based guidance line allows the driver to approach the parking slot from various angles and positions. Instead of requiring precise parallel alignment with the slot line, the curved guidance path guides the vehicle along a natural turning trajectory that accommodates different entry conditions while still achieving accurate parking placement.
Data Source
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AI summary
A parking guidance apparatus includes: an image obtainer to capture an image around a vehicle; an image processor to generate an around view monitoring (AVM) image by using images obtained through the image obtainer; and a controller. When entering a parking guidance mode, the controller displays a parking position marker near a vehicle within the AVM image, determines a target parking slot using the parking position marker, displays a point marker for setting an initial movement position from which the vehicle may enter the target parking slot, guides movement of the vehide to the initial movement position using the point marker, and guides the vehicle to enter the target parking slot when the vehicle reaches the initial movement position.