Motion-Compensated VR Compute Device for Vehicle Immersion

Solution Overview

Problem

Virtual reality and augmented reality technologies often induce nausea in users due to inconsistencies between the virtual or augmented content and the user's physical motion, particularly in vehicles, where motion sickness can occur from discordant physiological stimuli.

Innovation Solution

A system that includes a virtual reality compute device capable of predicting and compensating for vehicle motion by updating virtual or augmented reality content based on sensor data, navigation information, and crowd-sourced data, ensuring that the visual, audio, and tactile feedback align with the user's physical experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If head-mounted VR display is used to provide complete view encompassment, then immersion sense is improved, but motion sickness and nausea are induced due to inconsistency between VR content and physiological stimulus

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system uses sensors (accelerometers, gyroscopes, magnetometers) to continuously detect the device's motion and orientation, providing real-time feedback that is used to adjust the virtual reality content display, ensuring consistency between physiological stimulus and visual content

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system predicts future device motion based on current motion patterns and pre-adjusts the virtual reality content before the motion occurs, reducing latency and preventing motion sickness by proactively synchronizing visual feedback with expected physiological stimulus

Inventive Principle:
Principle #10Preliminary action

2Object-affected harmful factors

If virtual reality content is updated in real-time to match user motion, then motion sickness is reduced, but system complexity and computational requirements increase

Engineering Contradiction:
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system performs motion prediction using algorithms that forecast future device states based on current sensor data, allowing pre-computation of required visual adjustments before motion occurs, reducing real-time computational burden while maintaining synchronization

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses the device's own built-in sensors (accelerometer, gyroscope, magnetometer) to autonomously detect motion and adjust content without requiring external sensing equipment or complex external processing systems

Inventive Principle:
Principle #25Self-service

3Object-affected harmful factors

If latency is reduced to prevent motion sickness, then user comfort is improved, but processing time for content updates may be compromised

Engineering Contradiction:
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The system predicts future device motion and pre-preps the corresponding virtual reality content adjustments before the motion occurs, reducing the effective latency experienced by the user while maintaining adequate processing time through advance computation

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3519877B1Technologies for motion-compensated virtual reality
Publication Date: 2023.06.21
  • EP3519877B1 patent drawingFigure 1
  • EP3519877B1 patent drawingFigure 2
  • EP3519877B1 patent drawingFigure 3

AI summary

Technologies for motion-compensated virtual reality include a virtual reality compute device of a vehicle. The virtual reality compute device is configured to render a virtual reality content to an occupant of the vehicle and determine a motion of the vehicle based at least on sensor data generated by one or more vehicle motion sensors of the vehicle. Based on the determined motion of the vehicle, the virtual reality compute device modifies the rendered virtual reality media. In some embodiments, the virtual reality compute device may utilize other sensors associated with the vehicle and/or a user-worn virtual reality device to predict the motion of the vehicle in order to determine an expected motion of the vehicle that is expected to be sensed in the future.