Virtual Space Display System for Motion Sickness Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Passengers in self-driving vehicles or moving bodies experience discomfort and unease due to the mismatch between their visual perception of the virtual space and their actual motion, leading to feelings of strangeness and disorientation.
Innovation Solution
A virtual space display system that detects important features influencing the passenger's motion and converts them into objects suitable for the expected motion, using a display device such as a head mount display, to create a coherent and immersive virtual environment that aligns with the passenger's experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a head mount display is used to provide virtual space display to the driver, then the driver can direct attention to something other than driving, but the driver experiences motion sickness and feelings of strangeness due to mismatch between displayed image and actual vehicle motion
Solution Approach 1:
The system creates a virtual copy of the real-world environment that mirrors the vehicle's actual motion and surrounding features. By displaying a replicated version of the real space that moves synchronously with the vehicle, the driver's visual perception matches their vestibular sensation, eliminating motion sickness while allowing attention to be directed elsewhere
Solution Approach 2:
The system continuously detects the vehicle's actual motion and surrounding features, then feeds this information back to update the virtual space display in real-time. This closed-loop feedback ensures the virtual environment remains synchronized with the physical vehicle motion, preventing the mismatch that causes discomfort
2Reliability
If the vehicle changes moving direction to avoid obstacles during automatic driving, then collision avoidance is achieved, but the driver feels uneasy and experiences unexpected motion when the vehicle moves monotonously straight ahead
Solution Approach 1:
The virtual space display creates a visual copy of the real environment including obstacles and surrounding features. When the vehicle changes direction to avoid obstacles, the virtual environment simultaneously updates to reflect this motion, providing the driver with visual confirmation of the vehicle's actions and eliminating feelings of unexpected motion
Solution Approach 2:
The virtual space acts as an intermediary between the driver and the real-world environment. It mediates the driver's perception by providing a visual representation that explains and justifies the vehicle's motion changes, making obstacle avoidance maneuvers feel natural and expected rather than unexpected
Data Source
AI summary
A virtual space display system for a self-driving moving body displays a virtual space different from a real environment such that a passenger on the moving body can enjoy the virtual space without feeling strange for a motion. The system includes a display device, a surrounding situation detector, and a virtual space display unit. The surrounding situation detector obtains information specifying features that influence a path along which the moving body is to move, and specifies such an important feature among features located in the surrounding of the moving body that presence/absence of the important feature has an influence on the path of the moving body. The virtual space display unit converts the important feature into an object that is fit for the influence on the path of the moving body based on a predetermined rule, and causes the display device to display the virtual space including the converted object.