Body Joystick for Immersive VR Exercise Interaction

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing exercise equipment, such as treadmills and elliptical trainers, lack effective interaction methods that utilize full-body movements to enhance user immersion and interaction with virtual or mixed-reality environments, primarily focusing on hand and head movements while ignoring other body parts.

Innovation Solution

A body joystick system comprising a support arm, sensor, tether, and actuator that attaches to the user's body, detects movement, and provides feedback, allowing for comprehensive body interaction with virtual or mixed-reality machines and software applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If traditional exercise equipment focuses only on hand and head movements for virtual reality interaction, then device complexity is reduced, but user immersion and interaction quality deteriorate

Engineering Contradiction:
Improveinteraction system complexityVSAvoidfull-body interaction capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The body joystick is divided into multiple independent segments including support arms, attachment devices for different body parts, sensors, tethers, and actuators. Each segment can be independently configured and attached to different body locations, allowing the system to adapt to various interaction scenarios without increasing overall system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The body joystick is designed as a universal interaction device that can be attached to multiple different body parts (head, hands, torso, legs) using interchangeable attachment devices. This multi-functional design allows a single device to provide full-body interaction capabilities across various virtual reality and exercise scenarios

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If exercise equipment ignores body parts beyond hands and head, then ease of operation is improved, but user immersion and data collection quality deteriorate

Engineering Contradiction:
Improveinteraction simplicityVSAvoidbody movement data
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The body joystick leverages the user's own body movements and natural exercise motions as the input mechanism. The sensors detect movements that occur naturally during exercise, eliminating the need for users to learn complex interaction gestures while capturing comprehensive body movement data throughout the entire exercise routine

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If body joystick provides haptic feedback through actuators, then user immersion is improved, but device complexity and energy consumption increase

Engineering Contradiction:
Improveinteractive feedback capabilityVSAvoidactuator system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical haptic feedback mechanisms with a simpler tether-based mechanical linkage connected to actuators. The tether transmits forces and movements between the user's body and the actuator, providing effective haptic feedback while reducing mechanical complexity compared to direct motor-to-body coupling

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables immersive full-body interaction with virtual or mixed-reality environments, enhancing user engagement and data collection by translating body movements into control inputs and providing haptic feedback, thereby improving exercise experiences and interaction with virtual reality applications.

Implementation Method 1

a sensor for detecting movement

Methodology Applied
Scientific EffectMotion detection: Accelerometer

Implementation Method 2

a tether and actuator for providing feedback to the user about interactions with the virtual or mixed-reality machines or software applications

Methodology Applied
Scientific EffectHaptic feedback: Linear Motor

Data Source

PatentUS11191996B2Body joystick for interacting with virtual reality or mixed reality machines or software applications
Publication Date: 2021.12.07 BLUE GOJI LLC
  • US11191996B2 patent drawing
  • US11191996B2 patent drawing
  • US11191996B2 patent drawing

AI summary

A system and method for using a body joystick to interact with a virtual or mixed-reality machines or software applications that uses a support arm to hold a device for attaching the body joystick to a user's body, a sensor for detecting movement, and a tether and actuator for providing feedback to the user about interactions with the virtual or mixed-reality machines or software applications.