Heads-up Display Warning System for Obstructed Vehicle Detection
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Solution Overview
Problem
Current motor vehicle warning systems fail to effectively alert drivers to potential hazards that are not within their line of sight, such as vehicles obstructed by buildings or will become visible only at a later time, due to limitations in detecting and displaying information about remote vehicles.
Innovation Solution
A heads-up display system that uses a driver monitoring device to determine the driver's line of sight and an electronic control unit to communicate with remote vehicles, allowing the system to project warning images onto the combiner at precise locations corresponding to the remote vehicle's position or where it will become visible, even if obstructed or not yet in view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the warning system displays information about remote vehicles using traditional display methods, then drivers can be alerted to potential hazards, but the warning information may not be visible when vehicles are obstructed or outside the current line of sight
Solution Approach 1:
The system transitions from traditional 2D flat displays to a 3D spatial representation by projecting warning images onto the windshield at specific locations corresponding to the actual positions of remote vehicles. This creates a spatial mapping between the virtual warning images and the real-world environment, allowing drivers to perceive the location and movement of obscured vehicles more intuitively
Solution Approach 2:
The combiner/windshield acts as an intermediary surface that combines the real-world view with virtual warning images. The system uses the windshield as a medium to superimpose hazard information directly into the driver's field of view, merging the physical and virtual information spaces to enhance situational awareness
2Loss of information
If the system projects warning images at the actual location of remote vehicles, then drivers can see obscured hazards, but the images may be projected where drivers cannot currently see them
Solution Approach 1:
The system performs preliminary action by projecting warning images about remote vehicles that will become visible in the future or are currently obscured. By displaying information about vehicles before they enter the driver's direct line of sight, the system prepares the driver for upcoming hazards, allowing proactive rather than reactive response
Solution Approach 2:
The system counteracts the potential harm of obscured vehicles by providing advance warning through the HUD. By displaying information about vehicles that are currently not visible but pose a future hazard, the system neutralizes the information asymmetry between what the driver can see and what actually exists in the environment
3Loss of information
If the warning system provides comprehensive information about all remote vehicles, then drivers receive complete hazard awareness, but the information may overwhelm the driver with unnecessary details
Solution Approach 1:
The system applies local quality by providing different types and levels of information for different remote vehicles based on their specific characteristics and risk levels. Rather than uniform information display, the system tailors the warning content, position, and prominence to match the specific hazard each vehicle represents, focusing driver attention on the most relevant threats
Data Source
AI summary
A warning system for a motor vehicle includes a head up display. The warning system detects a remote vehicle that presents a potential hazard to a host vehicle, determines if the remote vehicle is visible to the driver and displays an image onto a combiner of the heads up display corresponding to a current location of the remote vehicle or a future location where the remote vehicle will appear on the combiner. In some cases, the combiner is a windshield or window of the motor vehicle.