Vehicle Laser Projection for Dynamic Driver Hazard Guidance
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Solution Overview
Problem
Conventional driver assistance systems rely on fixed frame projection systems and complex, expensive LCD-based projectors for dynamic content, which are not cost-effective or efficient for providing real-time information to drivers.
Innovation Solution
A dynamic projector integrated into a vehicle, utilizing a micro-projector engine that projects information onto surfaces such as the A-pillar or ground next to the vehicle, managed by a central control unit that receives signals from vehicle sensors via digital buses or Bluetooth connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed frame projection systems or LCD-based projectors are used, then dynamic content can be displayed, but the system becomes complex and expensive
Solution Approach 1:
The patent uses a simplified projection system that copies the essential function of displaying dynamic content without replicating the complex LCD-based projector architecture. Instead, it employs a basic projector combined with a movable mirror or prism system to achieve dynamic content display, thereby reducing device complexity while maintaining adaptability.
Solution Approach 2:
The invention introduces dynamic elements through a movable mirror or prism that can redirect light to different locations on the windshield. This mechanical dynamic component replaces the need for complex LCD projectors, allowing the system to display dynamic content adaptively while keeping the overall device complexity low.
2Adaptability or versatility
If conventional fixed frame projection systems or LCD-based projectors are used, then dynamic content can be displayed, but the system becomes costly
Solution Approach 1:
The patent implements a cost-effective solution by copying only the necessary function of dynamic content projection using simple, inexpensive components. Instead of manufacturing expensive LCD-based projectors, the invention uses a basic projector with add-on movable mirror or prism mechanisms, significantly reducing manufacturing costs while preserving adaptability for displaying dynamic information.
Solution Approach 2:
The invention employs inexpensive optical components such as movable mirrors or prisms that can be easily manufactured and replaced if needed. These simple components achieve the desired adaptability for dynamic content display without the high cost associated with LCD-based projector systems, making the overall system more economically viable.
3Ease of operation
If information is projected onto the windshield, then driver visibility is maintained, but the projection system becomes more complex
Solution Approach 1:
The patent introduces a movable mirror or prism as an intermediary component between the projector and the windshield. This intermediary redirects the projected light onto the windshield surface, enabling driver visibility of the information without requiring the driver to look away from the road. The intermediary adds minimal complexity compared to the alternative of using complex LCD projectors.
Solution Approach 2:
The movable mirror or prism provides dynamic light redirection capability, allowing the system to project information at different locations on the windshield as needed. This dynamic component enables flexible information placement for optimal driver visibility while maintaining a relatively simple overall system architecture compared to conventional LCD-based approaches.
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
The dynamic projector effectively provides drivers with critical information without requiring them to take their eyes off the road, enhancing safety and reducing driver distraction through cost-effective and efficient means.
Implementation Method 1
a laser diode operatively coupled with the controller
Implementation Method 2
at least one diffraction optical element disposed to receive a beam of light from the laser diode and project the beam to a target area
Data Source
AI summary
An information projection device includes a controller and a laser diode operatively coupled with the controller. At least one diffraction optical element is disposed to receive a beam of light from the laser diode and project the beam to a target area. This provides a user with information to assist the user in making decisions regarding to avoid potential hazards.