Windshield AR Speed Illusions for Driver Speed Compliance
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Solution Overview
Problem
Current in-vehicle interfaces for autonomous vehicles do not utilize optical illusions to regulate speed effectively, leading to potential speeding issues despite the presence of advanced driver assistance systems (ADAS) features.
Innovation Solution
An unsafe speed intervention system that uses augmented reality patterns on the vehicle's windshield to adjust drivers' speed perception by overlaying visual patterns such as transverse markings or optical speed bars, which are adjusted based on the vehicle's speed to encourage safe speed adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional speedometer and ADAS features are used for speed monitoring, then vehicle safety is improved, but driver compliance with safe speed limits deteriorates due to lack of effective speed perception regulation
Solution Approach 1:
The system displays augmented reality patterns with varying visual characteristics (brightness, contrast, color intensity) that change based on vehicle speed. These visual patterns become more intense or change color as speed increases, creating an intuitive visual feedback mechanism that encourages drivers to maintain safe speeds without relying solely on traditional speedometers.
Solution Approach 2:
The system transitions from traditional 2D speedometer displays to augmented reality patterns projected onto the windshield, adding a spatial dimension to speed feedback. The patterns are positioned and scaled to create depth perception, making speed information more salient and harder to ignore, thereby improving driver compliance.
2Ease of operation
If augmented reality patterns are displayed on windshield to regulate speed perception, then driver speed compliance is improved, but device complexity increases due to additional HMI components
Solution Approach 1:
The augmented reality pattern display system serves multiple functions: it monitors vehicle speed, determines unsafe conditions, generates appropriate visual patterns, projects them onto the windshield, and continuously adjusts based on speed changes. This multi-functionality consolidates what could be separate complex systems into a unified HMI approach, managing complexity through integration rather than addition.
Solution Approach 2:
The system automatically detects unsafe speed conditions and adjusts the augmented reality pattern display without requiring driver intervention. The patterns self-regulate based on real-time speed feedback, creating a closed-loop system that manages itself rather than requiring complex driver-HMI interaction protocols.
3Ease of operation
If augmented reality patterns are used to create optical illusions for speed regulation, then speed perception control is improved, but loss of accurate speed information occurs due to reliance on visual illusions rather than actual speed data
Solution Approach 1:
The system continuously monitors actual vehicle speed through the vehicle's existing speed sensor and uses this accurate data as feedback to adjust the augmented reality pattern display in real-time. This closed-loop feedback ensures that while optical illusions are used for perception control, the underlying accurate speed information drives all display adjustments, preventing information loss.
Solution Approach 2:
The augmented reality patterns act as an intermediary between the accurate speed data and the driver's perception. The patterns translate precise speed information into visually intuitive feedback without replacing the underlying data, serving as a mediation layer that enhances perception while preserving information accuracy.
Data Source
AI summary
A method for an unsafe speed intervention system is described. The method includes determining whether an initial speed of a vehicle is unsafe. The method also includes displaying an augmented reality pattern on a windshield of the vehicle moving at a selected speed in response to determining the initial speed of the vehicle is unsafe. The method further includes monitoring a current speed of the vehicle after displaying the augmented reality pattern. The method also includes adjusting the selected speed of the augmented reality pattern displayed on the vehicle windshield in response to the monitoring the current speed of the vehicle.