Windshield Obstacle Display for Driver Recognition
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Solution Overview
Problem
Current in-vehicle display systems have a limited displayable range, causing delays in information transmission to drivers and increasing mental stress due to the need to follow scattered obstacle images, which can obscure actual obstacles and require excessive eye movement.
Innovation Solution
An in-vehicle display apparatus with a display portion, obstacle recognition circuit, and image output circuit that displays obstacle images in a predetermined range at the lower portion of the windshield, aligning them with the driver's line of sight to facilitate easy recognition of obstacle positions without superimposing on actual obstacles, reducing mental stress and burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the displayable range is widened to frame all obstacles, then the coverage of obstacles is improved, but the driver's mental stress increases due to scattered obstacle images requiring excessive eye movement
Solution Approach 1:
The patent applies local quality by concentrating obstacle images in a specific localized region (lower portion of the windshield) rather than distributing them across the entire field of view. This creates a dedicated display zone that maintains comprehensive obstacle coverage while limiting the spatial spread of images, thereby reducing the driver's need to scan scattered locations and decreasing mental stress.
2Ease of operation
If obstacle images are displayed at the lower portion of the windshield, then the driver's ease of recognition is improved, but the displayable area is reduced
Solution Approach 1:
The patent utilizes the vertical dimension of the windshield by positioning obstacle images in the lower portion, effectively using the height dimension to create a dedicated display zone. This dimensional approach allows the system to concentrate multiple obstacle images in a vertically-defined region rather than spreading them horizontally across the driver's field of view, thereby improving recognition ease while managing display area constraints.
3Loss of time
If display images are superimposed on obstacles, then the information transmission is immediate, but the driver's ability to view obstacles is reduced due to obscuration
Solution Approach 1:
The patent extracts obstacle images from their traditional superimposed position and relocates them to the lower portion of the windshield. This separation removes the harmful effect of obscuration while preserving the real-time information transmission benefit. The obstacle images are still displayed immediately upon detection but are positioned in a region that does not overlap with the driver's direct view of actual obstacles.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables drivers to intuitively recognize obstacle positions and numbers by moving their gaze downward, reducing the risk of late information transmission and mental stress, while avoiding obstacles being obscured by display images.
Implementation Method 1
the displaying system reflecting an image-displaying light with a windshield to the driver's eyes to display a virtual image in front of the vehicle
Data Source
AI summary
In an in-vehicle display apparatus, an obstacle recognition circuit recognizes an obstacle around a subject vehicle, and an image output circuit causes a display portion to display an obstacle image indicating the obstacle recognized by the obstacle recognition circuit in a predetermined displayable range at the lower portion on a windshield. This permits the obstacle to be viewed at a position to which a line of sight of the driver to the obstacle image is extended upward.