Motor Vehicle Projection System for Dynamic Road Disruption Warning
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Solution Overview
Problem
Drivers often encounter unexpected road disruptions such as roadworks, mudslides, or potholes, which can lead to accidents due to inadequate warning systems beyond traditional road signs.
Innovation Solution
A motor vehicle projection system that detects disruptions and projects warning images using a detection device, processing unit, and imaging device, generating a control signal to display a transformed image of pictograms like traffic cones or road signs in a vertical plane, enhancing visibility and perceived depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional road signs are used to indicate disruption areas, then drivers can be warned of road hazards, but drivers are often surprised by unexpected disruptions and cannot react quickly enough
Solution Approach 1:
The system projects warning pictograms in advance of the actual disruption area, allowing drivers to see warnings before encountering the hazard. The projection system displays traffic cone, road sign, or arrow pictograms at a distance from the disruption, giving drivers early notice and sufficient time to react and change lanes or adjust speed.
Solution Approach 2:
The projection system acts as an intermediary between the detection device and the driver. It transforms detection data into visual pictograms that are projected onto the road surface, creating an intermediate warning layer that enhances driver awareness before the actual hazard is encountered.
2Reliability
If additional signalling is provided for disruption areas, then driver awareness is improved, but the system complexity increases
Solution Approach 1:
The projection system is designed to display multiple types of pictograms (traffic cones, road signs, guide arrows) using a single imaging device. The system can adaptively select and project different pictogram types based on the detected disruption, making the device versatile and reducing the need for multiple specialized components.
Solution Approach 2:
The system replaces physical mechanical warning devices (such as portable road signs or cones that require manual placement) with a digital projection system that can dynamically display warnings electronically, reducing mechanical complexity and enabling faster deployment.
3Reliability
If permanent warning structures are installed for disruption areas, then driver warning is reliable, but installation and removal become difficult and time-consuming
Solution Approach 1:
The system replaces permanent physical warning structures with a digital projection system that displays warnings virtually on the road surface. This electronic approach allows instant deployment and removal by simply activating or deactivating the projection, eliminating the need for physical installation and removal of structures.
Solution Approach 2:
The warning system transitions from static permanent structures to dynamic projected images that can be instantly created and removed. The projection system can adaptively display different pictograms and update warnings in real-time based on detection data, providing flexibility for temporary disruptions.
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
Provides additional and dynamic warning signals that can be easily installed and removed, improving driver awareness of temporary road hazards, thereby reducing the risk of accidents.
Implementation Method 1
an imaging device capable of receiving the control signal and projecting a digital image
Data Source
AI summary
A method for projecting at least one image, by a projection system of a motor vehicle. The method includes the following steps: detecting a disruption area, determining the position of the driver in a predefined reference frame referred to as the projection reference frame, calculating a transformation matrix for transforming an image depending on the determined position of the driver, generating the control signal, the control signal being obtained by applying said transformation matrix to at least one stored image, controlling the imaging device from the control signal so as to project a transformed image, the pictogram appearing in a vertical plane (PV) to said driver in the transformed image, and projecting the transformed image.