Parking Guidance Display With Obstacle-Aware Moving Area Updates
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Solution Overview
Problem
Conventional parking assistance devices do not consider obstacles on the parking route, leading to reduced operating efficiency and potential system interruptions during parking operations.
Innovation Solution
A parking assistance device that includes an imager to capture the vehicle's surroundings, a display to show guidance images, and a system that adjusts the moving area based on the steering angle, considering obstacles to set a reliable parking route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional parking assistance devices display fixed guidance information without considering obstacles, then the system complexity is reduced, but the reliability of parking operation is worsened due to potential collisions and system interruptions
Solution Approach 1:
The system performs preliminary detection of obstacles in the parking route before executing the parking maneuver. The imager captures images of the surrounding area, and the controller processes these images to identify obstacles in advance, allowing the system to adjust the guidance information before the vehicle begins moving, thereby ensuring reliable operation without adding complex real-time adjustment mechanisms
Solution Approach 2:
The controller acts as an intermediary between the imager and the display unit. It receives image data from the imager, processes obstacle information, and generates appropriate guidance information for the display unit. This intermediary processing layer enables reliable obstacle-aware parking guidance without requiring direct complex interaction between sensing and display components
2Productivity
If the parking assistance device calculates recommended positions without considering obstacles, then the ease of operation is improved, but the productivity of parking operation is worsened due to repeated adjustments and system interruptions
Solution Approach 1:
The system calculates and displays the recommended backward movement start position and steering angle in advance based on pre-detected obstacle information. This allows the driver to perform the parking maneuver in a single continuous operation without needing to make repeated adjustments or respond to system interruptions, thereby improving productivity while maintaining ease of operation
Solution Approach 2:
The system provides feedback to the driver through the display unit, showing the recommended backward movement start position, steering angle, and real-time vehicle position relative to the target parking position. This feedback mechanism enables the driver to complete the parking operation efficiently in one attempt by following the guidance information, improving productivity without complicating the operation
3Measurement precision
If the display shows static guidance information during parking maneuver, then the device complexity is reduced, but the measurement precision of vehicle position and moving area is worsened
Solution Approach 1:
The display unit dynamically updates the guidance information during the parking maneuver. The controller calculates the vehicle's current position based on steering angle and distance information, and updates the display to show the real-time moving area and vehicle position relative to the target parking position. This dynamic display provides precise measurement information without requiring complex additional sensors
Solution Approach 2:
The system uses the vehicle's own steering angle sensor and distance measurement capabilities to determine the vehicle's current position and calculate the moving area. The controller processes this self-generated data and displays it in real-time, providing precise measurement information without adding external complex sensing systems
Data Source
AI summary
A parking assistance device includes an imager that captures an image of a surrounding of a vehicle, and a display that displays a guidance image for guiding the vehicle from a parking start position to a target parking position and displays a moving area in which the vehicle can move during a parking operation. An area and dimension of the moving area displayed on the display changes based on a change in a steering angle of the vehicle.