AR Pathway Guidance for Solar Glare Mitigation
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Solution Overview
Problem
Conventional methods for mitigating solar glare while driving, such as sun visors and partial windshield tinting, are often ineffective during sunrise and sunset when the sun is directly in front of the vehicle, and continuous driver assistance systems can be distracting when glare is not present.
Innovation Solution
A User-centric Enhanced Pathway (UEP) system using Augmented Reality (AR) display that determines solar glare through real-time environmental and vehicle data, including driver eye squint, and adjusts optical properties to provide clear pathway guidance, engaging the AR display only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional driver assistance systems provide continuous path guidance using marked lanes on the display, then driver guidance is always available, but the system becomes distracting when solar glare is not present
Solution Approach 1:
The system dynamically adjusts the display of pathway guidance based on detected solar glare conditions. The marked lanes are displayed only when solar glare is detected by sensors, and hidden when glare is absent, making the system adaptive to current driving conditions rather than continuously active
Solution Approach 2:
The system uses sensors to detect solar glare conditions and provides feedback to the display controller. Based on this feedback, the system automatically activates or deactivates the marked lanes display, creating a closed-loop control system that responds to environmental conditions
2Object-affected harmful factors
If sun visors and partial windshield tinting are used to mitigate solar glare, then some glare reduction is achieved, but they are ineffective when the sun is directly in front of the vehicle during sunrise and sunset
Solution Approach 1:
The system projects pathway guidance information onto the windshield surface, creating a new visual dimension for driver assistance. This AR display approach works regardless of sun position, providing guidance information that is not blocked by glare in the same way traditional displays are
Solution Approach 2:
The system uses an augmented reality display as an intermediary between the driver and the roadway. The marked lanes are projected onto the windshield, serving as a mediator that guides the driver without requiring direct viewing of the roadway through glare-prone areas
Data Source
AI summary
A User-centric Enhanced Pathway (UEP) system may provide vehicle pathway guidance while driving using an augmented reality display system in the event of sun glare. The system uses a route observer module programmed to predict sun glare, by obtaining real-time information about the interior and exterior vehicle environment, heading, speed, and other data. The route observer module may also use an inward-facing camera to determine when the driver is squinting, which may increase the probability function that predicts when the driver is experiencing sun glare. When sun glare is predicted, the route observer sends the weighted prediction function and input signals to a decision module that uses vehicle speed, location, and user activity to determine appropriate guidance output for an enhanced pathway using an Augmented Reality (AR) module. The AR module may adjust brightness, contrast, and color of the AR information based on observed solar glare.