Vehicle Head-Up Display Reference Point Association
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Solution Overview
Problem
Conventional head-up display systems for vehicles struggle to help drivers recognize which caution objects correspond to projected virtual images, as the sense of distance to these objects is not clearly provided.
Innovation Solution
A display system that projects images onto a windshield, using a projector and controller to associate virtual images with reference points around caution objects, allowing drivers to easily identify these objects by superimposing the images onto a target space, utilizing a detection system with imaging devices and laser radar to determine object distances and positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a head-up display projects virtual images onto the windshield, then driving information is displayed in the distance, but the driver cannot easily recognize which caution objects correspond to the projected images
Solution Approach 1:
The patent introduces reference points as intermediary elements that are projected onto the windshield at locations corresponding to detected caution objects. These reference points serve as mediators between the virtual images and the actual caution objects, enabling the driver to easily identify which caution object each virtual image corresponds to by visually matching the reference point with the object in the driving scene
Solution Approach 2:
The patent employs color coding for different types of reference points to provide intuitive visual information. Different colors indicate different categories or levels of caution objects, allowing the driver to quickly distinguish and recognize various objects based on color rather than requiring detailed visual analysis of each object
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 visually recognize and easily identify caution objects, such as pedestrians or vehicles, by displaying virtual images in association with reference points, enhancing safety by providing clear distance information.
Implementation Method 1
The display device includes a screen on which an image is drawn. The image formed on the screen is reflected by the windshield of the vehicle via a projection means and comes into sight of a driver.
Data Source
AI summary
A display system includes a projector that projects a virtual image onto a target space to allow a target person to visibly recognize the virtual image and a controller that controls display of the virtual image. When the projector projects a virtual image corresponding to a caution object, the controller selects at least one reference point from one or more candidate points existing around the caution object and associates the virtual image with the at least one reference point.