Vehicle Laser Warning System for Shoulder Collision Prevention
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Solution Overview
Problem
Accidents frequently occur when vehicles are parked or stopped on the shoulder of roads, leading to secondary collisions, and existing safety equipment is either ineffective or time-consuming to install, posing additional risks.
Innovation Solution
A laser-based warning system for vehicles that includes a laser device mounted on the vehicle's ceiling and a controller to generate emergency messages, which are projected onto the windshield and rear window as animation-based warnings, allowing for clear communication of emergency situations to preceding and following vehicles, unaffected by ambient light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional road flares are used for warning, then warning capability is provided, but installation time is excessive and additional safety risks are introduced
Solution Approach 1:
The patent replaces the mechanical flare system with an electronic laser projection system. The laser device projects warning patterns (such as skull and crossbones symbols) onto the windshield and rear window, eliminating the need for manual flare installation while providing immediate visual warning to other drivers.
Solution Approach 2:
The laser warning system is integrated into the vehicle's existing electrical system and can be automatically activated when the vehicle is stopped on the shoulder. The system serves itself by using the vehicle's power supply and control mechanisms, requiring no external installation or manual operation during emergency situations.
2Loss of information
If warning messages are displayed on glass surfaces, then visibility to other vehicles is improved, but ambient light and reflections may interfere with message clarity
Solution Approach 1:
The laser device emits light in specific colors (typically red or other high-visibility wavelengths) that create strong contrast against the glass surface. The laser's coherent and monochromatic light properties ensure that the projected warning patterns remain clearly visible regardless of ambient lighting conditions during daytime or nighttime operations.
Solution Approach 2:
The laser projection system can operate in periodic or pulsed modes, creating flashing or blinking warning patterns that enhance visibility and capture the attention of other drivers. This periodic action ensures that the warning message remains effective even when competing with ambient light sources.
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 system effectively prevents accidents by providing a clear and prompt warning to other vehicles, enhancing safety by transmitting messages without interference from surrounding light, thus reducing the risk of secondary collisions.
Implementation Method 1
a laser device located on an inner face of a ceiling of a vehicle frame; and a controller configured to generate an emergency message and send the message to the laser device, wherein the laser device is configured to receive the emergency message and to shape a laser based on the message to irradiate the laser-based message onto a front, left, right, rear glasses of the vehicle selectively
Data Source
AI summary
A laser-based warning system for a vehicle, the system including: a laser device located on an inner face of a ceiling of a vehicle frame; and a controller configured to generate an emergency message and send the message to the laser device, wherein the laser device is configured to receive the emergency message and to shape a laser based on the message to irradiate the laser-based message onto a front, left, right, rear glasses of the vehicle selectively.