Parking Assistance Display Gating for Accurate Empty Space Positioning
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Solution Overview
Problem
Existing parking assistance systems fail to accurately display empty parking spaces due to processing delays, leading to positional inaccuracies when the vehicle is traveling.
Innovation Solution
A parking assistance method that determines whether the vehicle has stopped and displays an image indicating an empty parking space at an appropriate position within a surrounding view, using a configuration of cameras, sensors, and a controller to generate and compose images, ensuring accurate positioning by avoiding display during travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the system displays an image indicating an empty parking space while the vehicle is traveling, then the driver can see parking space information, but the image may not be displayed at an appropriate position due to processing delay
Solution Approach 1:
The system dynamically adjusts the display behavior based on vehicle motion state. When the vehicle is traveling, the system suppresses display of parking space images to avoid positional inaccuracy. When the vehicle stops, the system activates display with high positional precision. This dynamic adaptation resolves the contradiction between providing information and maintaining accuracy.
Solution Approach 2:
The system performs preliminary detection of empty parking spaces while the vehicle is traveling, but delays the actual display until the vehicle stops. This preliminary action allows the system to prepare the information in advance, ensuring that when display occurs, the positional accuracy is maximized without processing delays affecting position.
2Speed
If the system processes and displays parking space information in real-time while the vehicle is moving, then the driver receives timely information, but processing delay causes the image to be displayed at an incorrect position
Solution Approach 1:
The system employs periodic checking of vehicle stop state and conditional display activation. Instead of continuous real-time display during motion, the system periodically checks when the vehicle stops and then activates precise display. This periodic action pattern allows the system to balance processing speed with position precision by operating in discrete phases rather than continuous real-time mode.
Data Source
AI summary
A parking assistance device includes: a sensor-information processing circuit that detects an empty parking space around a host vehicle; a surrounding-image generation circuit that generates a surrounding image that is a view of surroundings of the host vehicle from above; an image display circuit that displays a first assistance image at a position of the empty parking space in the surrounding image, the first assistance image indicating the empty parking space; and a stop determination circuit that determines whether the host vehicle has stopped. In a case where it is determined by the stop determination circuit that the host vehicle has stopped, the image display circuit displays the first assistance image.