Independent Pedal VR Walking Mechanism for Realistic Motion

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Solution Overview

Problem

Current VR walking mechanisms fail to accurately simulate the experience of walking, leading to an unnatural feeling due to their slippery surfaces and limited size, which compromises user safety and immersion.

Innovation Solution

A VR walking mechanism featuring independently driven pedals with sensing devices and motors that mimic real walking by tracking foot positions and movements, allowing for precise control and safety through a safety rope, enhancing the sense of reality and user safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a smooth concave platform is used for VR walking, then the device structure is simple, but the surface is slippery causing unnatural walking feeling and safety issues

Engineering Contradiction:
Improvedevice structure simplicityVSAvoiduser safety and walking realism
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The platform is divided into multiple independent pedal units (first pedal, second pedal, etc.) that can move independently. Each pedal is equipped with its own driving mechanism and sensing device, allowing segmented control of foot positions to simulate realistic walking patterns while maintaining structural simplicity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pedals are designed to be movable rather than fixed, with each pedal capable of independent displacement along the moving direction. The driving mechanisms dynamically adjust pedal positions based on sensing device feedback, creating a dynamic walking simulation that prevents slipping while maintaining safety.

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If the VR walking mechanism size is limited, then the device fits space constraints, but the walking simulation accuracy is reduced

Engineering Contradiction:
Improvedevice sizeVSAvoidwalking simulation accuracy
Core Design Contradiction:
Volume of moving objectVSMeasurement precision

Solution Approach 1:

The system transitions from simulating walking on a fixed 2D plane to controlling multiple pedals that move independently along the moving direction in 3D space. This dimensional transformation allows accurate foot position tracking within a compact volume by utilizing vertical and lateral pedal movements rather than requiring a large horizontal platform.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent replaces traditional mechanical walking simulation mechanisms with an integrated system combining sensing devices and driving mechanisms for each pedal. This substitution enables precise control of pedal positions through electronic actuation rather than complex mechanical linkages, achieving high simulation accuracy within limited space.

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

3Measurement precision

If independently driven pedals with sensing devices are used, then walking simulation accuracy is improved, but the device complexity increases

Engineering Contradiction:
Improvefoot position tracking accuracyVSAvoidpedal control system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Each pedal unit is designed as a universal module that integrates multiple functions: sensing device for position detection, driving mechanism for movement control, and structural support. This modular universal design allows the same configuration to be replicated across multiple pedals, reducing overall system complexity through standardization while maintaining high measurement precision.

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

Data Source

PatentEP3690607B1Virtual reality walking mechanism, and method for walking in virtual reality scene
Publication Date: 2022.08.31 CHEN ZHAOSHENG
  • EP3690607B1 patent drawingFigure 1
  • EP3690607B1 patent drawingFigure 2
  • EP3690607B1 patent drawingFigure 3

AI summary

The present invention provides a VR walking mechanism, which includes a first pedal, a second pedal, a sensing device, a control device and a driving device. The first pedal and the second pedal are connected to the driving device, respectively. The sensing device is configured to obtain motion information of a first object and/or a second object and send the motion information to the control device. The control device determines a predicted landing point of the first object and/or the second object based on the motion information and controls the driving device according to the predicted landing point so as to drive the first pedal and/or the second pedal to move to the corresponding position. The first pedal and/or the second pedal resets after sensing that the first object and/or the second object has stepped thereon. The present invention further provides a VR walking method corresponding to the VR walking mechanism.