Windshield Visual Guidance System for Driver Route Overlays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current car navigation systems impose a heavy burden on drivers as they require recognizing guidance routes separately from actual roads, leading to increased attention and time in navigating through traffic, pedestrians, and obstacles.
Innovation Solution
A visual guidance system that projects a virtual line from the driver's perspective onto the windshield, overlaying it on the actual road surface, adjusting its length and width based on vehicle speed, steering, and braking inputs, using cameras and processors to recognize the road and guide the driver's gaze naturally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a car navigation system presents a guidance route separately from the actual road, then the route guidance function is provided, but the driver burden increases due to the need to recognize and associate the route with the real road
Solution Approach 1:
The patent merges the guidance route information with the actual road view by overlaying the route on the captured image of the road ahead. This integration allows the driver to see both the real road and the guidance route simultaneously in the same visual field, eliminating the need to switch between separate displays and reducing the cognitive burden of associating abstract route information with the physical road.
Solution Approach 2:
The camera captured image of the road acts as an intermediary medium that carries both the real road information and the overlaid guidance route information. This intermediary display on the windshield or transparent display surface allows the driver to perceive integrated route guidance without removing the driver's natural view of the road, thus reducing operation burden while maintaining guidance effectiveness.
2Loss of information
If the driver focuses on recognizing the route from separate indication, then route guidance is achieved, but attention to traffic, pedestrians, and obstacles is reduced
Solution Approach 1:
By merging the route guidance information directly onto the visual field of the road ahead, the system allows the driver to maintain focus on the actual driving environment while simultaneously receiving guidance information. The overlaid route appears in the same visual space as traffic, pedestrians, and obstacles, enabling the driver to process both types of information without shifting attention between separate displays, thus maintaining driving safety.
Solution Approach 2:
The patent adds a graphical overlay dimension to the existing visual field of the road. Instead of presenting route information on a separate dashboard display that requires lateral attention shift, the guidance route is superimposed in the forward visual dimension, allowing the driver to perceive route guidance and driving environment information in the same spatial dimension without compromising safety.
3Loss of information
If a traditional dashboard display is used for route guidance, then route information is provided, but the driver must shift attention between the display and the road
Solution Approach 1:
The system preliminarily positions the route guidance information in the driver's forward visual field before the driver needs to make a steering decision. By displaying the overlaid route on the captured image of the road ahead, the guidance information is already in the optimal viewing position when the driver needs it, eliminating the time delay associated with shifting attention to a separate dashboard display and back to the road.
Solution Approach 2:
The integration of route guidance information with the road view in the same visual field eliminates the need for attention shifting between separate displays. The driver can process route guidance information and road information simultaneously, significantly reducing the response time required to recognize the route and execute appropriate driving maneuvers.
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 and a processor to output image information on the image display. The processor outputs image information for presenting a virtual line extending from an upper side of the driver to a visual guidance target seen within the windshield in such a manner that the virtual line is overlaid on the windshield.