Virtual reality training device

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Solution Overview

Problem

Existing VR input devices are unstable, prone to motion sickness, and disrupt immersion due to coupling head movement with torso movement, leading to inefficiencies and discomfort.

Innovation Solution

A system that measures the user's torso angle and feeds it back to the application, uncoupling head movement from torso movement, using a rotary slip connector and quadrature rotary encoder for precise control, and incorporates mechanical switches and analog input for seamless movement in VR environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional VR input devices are used to control movement, then basic input functionality is provided, but the user experiences motion sickness and instability due to coupling head movement with torso movement

Engineering Contradiction:

Improveinput stabilityVSAvoidmotion sickness

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system divides the input device into separate functional components: a head-mounted display for head tracking and a separate torso input device for torso movement detection. This segmentation allows independent measurement of head and torso movements, eliminating the harmful coupling effect that causes motion sickness while maintaining reliable input functionality.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If head movement is coupled with torso movement in VR systems, then traditional input control is maintained, but immersion is disrupted and user experience deteriorates

Engineering Contradiction:

Improveinput controlVSAvoidimmersion disruption

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The input system is segmented into independent head tracking (via HMD) and torso input (via separate device), allowing each to function independently. This enables intuitive head-based viewing while torso movements provide deliberate control inputs, maintaining ease of operation without disrupting immersion.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system introduces an intermediary processing layer that receives separate inputs from head and torso sensors, processes them independently, and combines them appropriately for VR control. This intermediary approach allows decoupling of head and torso movements while maintaining coordinated control functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the pivot point for movement is positioned further from the user's hips, then a larger range of motion is achieved, but the resistance force increases and sensitivity decreases

Engineering Contradiction:

Improverange of motionVSAvoidresistance force

Core Design Contradiction:

Adaptability or versatilityVSForce

Solution Approach 1:

The system replaces the mechanical pivot-point-based rotation system with electronic sensors (accelerometers, gyroscopes) that detect torso orientation in three-dimensional space. This substitution eliminates the need for physical pivot points and ballast, allowing full range of motion without increased resistance force or reduced sensitivity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12482200B2Virtual reality training device

Publication Date: 2025.11.25 SCHRADIN AARON

AI summary

According to the present teachings a system is provided having a landscape engine configured to take digital input and convert it into three dimensional at virtual reality dataset. The landscape engine is functionally coupled to a physics engine configured to physical rules to objects within the virtual reality dataset. A display engine is coupled to the physics engine to convert the dataset into first and second content streams.