Vehicular Display Attention Mark Positioning
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Solution Overview
Problem
Conventional vehicular display apparatuses fail to accurately position attention marks on windshields relative to attention targets, such as preceding vehicles, as the marks are displayed at a fixed distance regardless of changing relative distances, potentially obscuring the target when it approaches.
Innovation Solution
A vehicular display apparatus that includes an attention target detector, vehicle condition detector, and display controller, which calculates and adjusts the display position of an attention mark on the windshield based on the relative distance to the attention target, ensuring the mark remains visible and avoids overlapping with the target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the target mark is displayed at a fixed distance from the driver's view position on the windshield, then the display position is simple to determine, but the target mark may be displayed over the attention target when the distance changes, obscuring the target
Solution Approach 1:
The patent applies the dynamics principle by making the display position of the attention mark dynamic rather than fixed. The display position is adjusted in real-time based on the detected distance between the vehicle and the attention target. When the target is farther away, the mark is displayed at a greater distance from the driver's view position; when the target approaches, the mark is displayed closer to the driver's view position. This dynamic adjustment ensures the attention mark remains visible and does not obscure the actual target throughout the approach process.
2Reliability
If the display position of the attention mark is adjusted according to the relative distance to the attention target, then the target visibility is maintained, but the display control becomes more complex
Solution Approach 1:
The patent implements feedback by continuously detecting the distance between the vehicle and the attention target using a distance detection device, and using this detected distance information to adjust the display position of the attention mark. The system forms a closed-loop control where the display position is automatically adjusted based on real-time distance feedback, ensuring the attention mark remains at an appropriate position without requiring complex manual intervention or pre-programming of multiple fixed positions.
Data Source
AI summary
A vehicular display apparatus that displays an image on a windshield of a vehicle has an attention target detector configured to detect an attention target to which attention of a driver of the vehicle needs to be drawn, and calculate a distance from the attention target to the vehicle, and a display controller configured to perform display control that displays an attention mark on the windshield in a superimposed manner such that, from a point of view of the driver, the attention mark is displayed close to the attention target detected by the attention target detector, the attention mark being displayed to draw the attention of the driver to the attention target. The display controller sets a base point at a position of the attention target on the windshield, sets a display position of the attention mark at a position which is a predetermined distance away from the base point.