Windshield Visual Guidance System for Driver Attention Management
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Solution Overview
Problem
Current car navigation systems impose a heavy burden on drivers as they require recognizing a guidance route and associating it with the actual road, leading to increased attention and time to perform driving operations, especially when navigating through complex environments with pedestrians, other vehicles, and obstacles.
Innovation Solution
A visual guidance system that projects a virtual line on the windshield, synchronized with steering inputs, to guide the driver's gaze directly to objects outside the vehicle, reducing the burden by presenting attention-attracting indications in conjunction with the virtual line and adjusting their conspicuousness based on steering inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a typical car navigation system presents a guidance route separately from the actual road, then the route can be clearly displayed, but the driver has to recognize the route, associate it with the real road, and identify the road to enter, which increases the burden and time required for driving operations
Solution Approach 1:
The patent merges the virtual guidance route with the actual road view by overlaying the route indication directly onto the real-time camera image of the road. This integration allows the driver to see both the actual road and the guidance route simultaneously in the same visual field, eliminating the need to switch between separate displays and reducing the time required to associate the route with the real road.
Solution Approach 2:
The patent introduces a camera as an intermediary device to capture the real-time view of the road and overlay the virtual route indication onto this image. This intermediary approach creates a composite display that combines real-world visual information with digital guidance information, making the association between the route and the actual road immediate and intuitive.
2Reliability
If the driver pays attention to objects outside the vehicle while navigating, then safety is improved, but the driver has to divide attention between the route indication and surrounding objects, increasing the overall burden
Solution Approach 1:
The patent combines the route guidance information with the real-time view of the road and surrounding environment into a single integrated display on the windshield. By overlaying the virtual route indication directly onto the camera-captured image of the actual road and surrounding objects, the driver can monitor both the guidance route and external objects simultaneously without shifting attention between separate displays, thereby reducing cognitive load while maintaining safety.
Data Source
AI summary
A visual guidance system includes an image display to present an image overlaid on a windshield in front of a driver of a vehicle, a processor to output image information on a virtual line to display visual guidance to the image display, and a steering input detector to detect a steering input. The processor presents an attention attracting indication about an object outside of the vehicle in synchronization with the virtual line in such a manner that the virtual line extends from above the driver along a course of the vehicle seen within the windshield, and a pointing end of the virtual line is overlaid on a road surface on the course seen within the windshield. The processor outputs image information for changing the attention attracting indication to be less conspicuous than the virtual line in accordance with a steering input signal given by the steering input detector.