Gyroscopic Force-Feedback Controller for Realistic VR Presence
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Solution Overview
Problem
Existing operating devices, such as game controllers, primarily rely on vibration for force feedback, which limits the reproducibility of a realistic sense of presence in VR and motion-sensing games.
Innovation Solution
An operating device that includes a rotation body with a rotation axis, capable of generating inertial force through rotational mechanisms like gyro moments, allowing for various force feedback beyond simple vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vibrator is used for force feedback, then the operator can feel vibration, but the reproducibility of sense of presence is limited
Solution Approach 1:
The patent changes the fundamental operating parameters of the feedback mechanism by replacing vibrational motion with rotational motion of a rotation body. By controlling rotation speed and pivot angle, the system generates gyro moments that produce diverse force feedback sensations (push, pull, rotational forces) rather than limited vibration patterns, thereby improving both the reproducibility of presence and the variety of feedback types.
Solution Approach 2:
The system employs a dynamically adjustable rotation body that can change its rotation speed and pivot angle during operation. This dynamic capability allows the force feedback to adapt to different game situations and provide varied sensations beyond fixed vibration patterns, resolving the contradiction between reliability of presence and versatility of feedback.
2Adaptability or versatility
If the rotation body is made pivotable with first and second pivot axes, then gyro moments are generated in two directions, but the mechanism complexity increases
Solution Approach 1:
The rotation body serves multiple functions simultaneously: it rotates around a rotation axis to generate gyro moments, and it can pivot around two perpendicular pivot axes to control the direction of force feedback. This multi-functionality allows a single component to achieve complex directional control without proportionally increasing overall system complexity, as the same rotation body integrates all three rotational degrees of freedom.
Solution Approach 2:
The patent merges the rotation mechanism and pivot mechanisms into an integrated structure where the rotation body is supported by frames that enable both rotation and dual-axis pivoting. This combining of functions into a unified mechanism reduces the number of separate components needed compared to implementing three independent rotational mechanisms, thereby managing complexity while achieving versatile directional control.
3Ease of operation
If the guide frame transmits pivoting to the first frame, then the self-weight influence of driving source is eliminated, but the mechanism structure becomes more complex
Solution Approach 1:
The guide frame acts as an intermediary mechanism that transmits pivoting motion from the second frame to the first frame. This intermediary structure eliminates the direct connection between the driving source and the rotation body, thereby removing the influence of self-weight on the driving source's operation. The guide frame mediates the motion transmission in a way that achieves high responsiveness while distributing the mechanical complexity across multiple specialized components rather than concentrating it in the driving source.
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
The device provides a variety of force feedback sensations by generating inertial forces in specific directions, enhancing the realism of game experiences.
Implementation Method 1
by changing the posture or rotation speed of the rotation body that is rotated by the rotational drive part, inertial force in a specific direction may be generated
Implementation Method 2
the rotation body rotating with the rotation axis as a rotation center is made to be pivotable with a first pivot axis perpendicular to the rotation axis as a pivot center
Implementation Method 3
the rotation body rotating with the rotation axis as a rotation center is made to be pivotable with a second pivot axis perpendicular to both the rotation axis and the first pivot axis as a pivot center
Data Source
AI summary
Provided is an operating device that is held or worn by an operator for operating an operation target. The operating device includes a rotating wheel that rotates with a rotation axis as a rotation center, and a motor that rotates the rotating wheel.