Drive Assist Display Apparatus Parking Alignment
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Solution Overview
Problem
Conventional drive assist display apparatuses face issues in accurately displaying the width of a vehicle, alignment with parking spaces, recognition of vehicle inclination, and direction of distant objects, leading to difficulties in parking point adjustment and vehicle alignment.
Innovation Solution
A drive assist display apparatus that adjusts the display region to match the vehicle's width, bends the distant side of the sub-view to align with the vehicle's center, and displays left and right sides inclined, allowing for accurate recognition of vehicle size, alignment, and inclination direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display range of the sub view is made wide to show more area, then the visibility of distant objects is improved, but the accuracy of vehicle width recognition deteriorates
Solution Approach 1:
The display screen is divided into a main view section and a sub view section. The main view displays the standard rearward image for accurate vehicle width reference, while the sub view provides an expanded view of distant areas. This segmentation allows both wide display range and accurate vehicle width recognition to coexist by dedicating different regions to different functions.
Solution Approach 2:
Different regions of the display have different characteristics. The main view maintains proper proportions for accurate vehicle width recognition, while the sub view is optimized to show distant objects and parking space lines. Each region has specialized quality suited to its specific purpose, resolving the contradiction between wide display and accurate measurement.
2Device complexity
If the sub view is displayed as a simple rectangle, then the display structure is simple, but the recognition of vehicle inclination and alignment is difficult
Solution Approach 1:
The sub view is displayed as a trapezoid rather than a rectangle, with the distant side bent to align with the vehicle's center line. This curved/geometric transformation provides visual cues about vehicle inclination and alignment with parking spaces, making alignment recognition easier while maintaining relatively simple display structure.
Solution Approach 2:
The sub view uses an asymmetric trapezoidal shape rather than a symmetric rectangle. The left and right sides are inclined at different angles to indicate vehicle orientation and inclination, providing intuitive visual information for alignment recognition that a symmetric rectangular display cannot provide.
3Area of stationary object
If the display shows a wide area including both near and distant regions, then the overall visibility is improved, but the accurate display of parking space alignment is deteriorated
Solution Approach 1:
The sub view is positioned and oriented at a different angular dimension relative to the main view. The trapezoidal sub view is rotated and angled to align with the vehicle's center line, creating a multi-dimensional display arrangement that preserves alignment accuracy while expanding the total displayed area through spatial optimization.
Data Source
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AI summary
Provided is a drive assist display apparatus which can display an imaging range needed for the parking point adjustment, and make an easy recognition of the accurate width of the vehicle, pre-recognition of the inclined direction of the turned vehicle, and recognition of the direction of the subject with respect to the vehicle at the time of the parking point adjustment of the backward or forward traveling vehicle. The reference sign 20 indicates a main view showing an image of a wide backward area of the vehicle. The reference sign 21-4 indicates a sub view showing a view point conversion image as if looked down from a virtual viewpoint to a vicinity of the vehicle 1. The sub view 21-4 has a down side region showing a moderate part of the bumper 13 and has an up side region showing a subject in a distant area from the vehicle 1. The sub view 21-4 is spread in form with increasing distance from a corresponding position of the vehicle 1. In detail, the sub view 21-4 shows a vicinity area of the bumper 13 as having a width nearly equal to a corresponding width of the vehicle and shows a distant area from the vehicle 1 as having a width larger than the corresponding width of the vehicle 1. The sub view 21-4 has a distant side from the corresponding position of the vehicle 1, the distant side bent in form without creasing with closing to a line corresponding to a line at a constant distance from the center of the vehicle 1.