Head-Up Display Optical Illusion for Driver Speed Compliance
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Solution Overview
Problem
Drivers often fail to respond appropriately to road signs and speed limits, despite advanced head-up display technologies that aim to enhance visibility, as they do not inherently induce the desired behavioral changes for safe driving.
Innovation Solution
A vehicle display control apparatus that uses a head-up display to create optical illusions, such as linear marks or three-dimensional objects, which are superimposed on the windshield, to instinctively guide drivers to follow speed limits and navigate through specific road conditions by creating the illusion of moving road features or obstacles, thereby prompting desirable driving behaviors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional head-up display shows road signs and guidance information, then drivers can notice signs more easily, but drivers do not necessarily behave as required by the signs
Solution Approach 1:
The patent changes the visual parameters of the head-up display by creating optical illusions that alter the perceived speed of road features. When vehicle speed exceeds the limit, the display shows road markings that appear to move faster than they actually do, creating a visual feedback mechanism that instictsively prompts drivers to decelerate.
Solution Approach 2:
The patent replaces traditional informational display mechanisms with optical illusion-based visual tricks. Instead of simply showing speed limit signs or warning messages, the system uses perceptual psychology by creating illusions of moving road features that naturally guide driver behavior without requiring cognitive processing of traffic rules.
2Ease of operation
If head-up display shows guidance information at lower positions, then drivers can see the information, but it does not effectively guide driver behavior
Solution Approach 1:
The patent transforms static guidance information into dynamic optical illusions by manipulating the apparent motion of road features in the display. The visual system creates illusions where road markings appear to accelerate or decelerate, providing intuitive feedback about vehicle speed relative to the limit without requiring drivers to read or interpret textual guidance.
3Reliability
If illusion images are displayed to create optical illusions, then drivers respond instinctively to the visual tricks, but the system must accurately determine when to activate the illusion
Solution Approach 1:
The patent implements a feedback mechanism where the head-up display continuously monitors vehicle speed and road feature movement, then adjusts the optical illusion parameters accordingly. The system creates a closed-loop control where the displayed illusion provides visual feedback about speed compliance, and the illusion parameters are dynamically adjusted based on actual vehicle behavior.
Data Source
AI summary
A vehicle display control apparatus mounted on a vehicle includes a display control portion that controls a head-up display device displaying an image by superimposing the image on a view visible to a driver of the vehicle through a windshield of the vehicle, and a condition determination portion that determines whether a condition under which the vehicle should slow down is satisfied. The display control portion causes, based on a determination of the condition determination portion that the condition is satisfied, the head-up display device to display an object that does not actually exist on a road under circumstances where the condition is satisfied, as an illusion image that produces an optical illusion appearing that a road surface viewed from the driver flows faster than an actual speed in an opposite direction to a travel direction by superimposing the illusion image on the view.