Vehicle Navigation Projection System with Auto-Adjusting Windshield
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Solution Overview
Problem
Conventional head-up display systems in navigation systems require drivers to adjust the projection position manually to clearly view navigation images, which is inconvenient and affects driving safety.
Innovation Solution
A vehicle navigation projection system that includes a navigation device, an image capture device, a projection device, and a switchable projection glass, which captures the driver's view, analyzes the image, and projects navigation icons superimposed on the street image, adjusting transparency based on light intensity to provide an augmented reality display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional head-up display systems project navigation images on a limited area of the windshield, then the navigation information is displayed, but the image size is not easy to control and different drivers must adjust the projection position manually
Solution Approach 1:
The system automatically detects driver position, eye level height, and viewing angle using sensors and image processing, then autonomously adjusts the projection position and parameters without requiring manual intervention from the driver
Solution Approach 2:
The system uses cameras and sensors to capture driver position and viewing conditions, processes this information through image recognition algorithms, and continuously adjusts the projection parameters based on the analyzed feedback to maintain optimal display conditions
2Loss of information
If the projection device projects navigation icons on the windshield, then navigation information is visible to the driver, but the original view through the windshield may be obstructed
Solution Approach 1:
The system projects navigation icons only in specific local areas of the windshield that correspond to the driver's viewing angle and do not overlap with the road scene, ensuring navigation information is visible without obstructing the original view
Solution Approach 2:
The system uses augmented reality technology to overlay virtual navigation icons in the three-dimensional space viewed by the driver, creating a layered display where navigation information exists in a different dimension than the physical road scene
3Illumination intensity
If the projection glass transparency is adjusted according to light intensity, then the projected image visibility is improved, but the system complexity increases
Solution Approach 1:
The system automatically adjusts the projection glass transparency parameter based on detected ambient light intensity conditions, switching between different transparency states to optimize projected image visibility without requiring complex manual control mechanisms
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 view navigation information with improved clarity and safety by projecting icons directly on the windshield, adjusting for light conditions and vehicle type, without obstructing the original view, thus enhancing driving safety and convenience.
Implementation Method 1
The projection module is configured to project the indication icon on the projection glass
Implementation Method 2
the projection glass is a switchable glass and is able to adjust transparency thereof according to light intensity of environment
Data Source
AI summary
The present disclosure illustrates a vehicle navigation projection system and a method thereof. In an embodiment, a projection device disposed on the top of vehicle interior receives and analyzes a current image in front of a driver's seat of vehicle, to obtain a contour of a street in the current image, generate an indication icon based on the contour of the street and a navigation signal, and project the indication icon on a projection glass served as windshield of the vehicle. The indication icon is superimposed on the street position in the current image and transparency of the projection glass can be adjusted according to light intensity of environment. Thus, the vehicle navigation projection system enables the different drivers to see the indication icon with the navigation function in any lighting environment, and achieves effect of providing the driver with the indication icon having the sense of augmented reality.