VR Display Module with Rotating Treadmill for Viewpoint Control
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Solution Overview
Problem
Conventional virtual reality experience devices lack stability and accuracy in maintaining the user's intended viewpoint due to the absence of support mechanisms, leading to potential loss and unintended viewpoint changes.
Innovation Solution
A virtual reality experience device with a base and frame that includes a rotatable treadmill, allowing the display module to move and rotate along the z-axis and x-axis, supported by rollers and levers for user control, ensuring stable wear and precise viewpoint adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a head mounted display is provided without a support member to allow high degree of freedom, then the user can move freely, but the display module becomes unstable and is likely to be lost
Solution Approach 1:
A treadmill mechanism is introduced as an intermediary between the user and the display module. The treadmill rotates about the z-axis and is connected to the display module, allowing the user to control the display's rotation by stepping on the treadmill. This mediator enables free movement and viewpoint changes while maintaining stable connection and preventing loss of the display module.
2Ease of operation
If a head mounted display is provided without a support member, then the user has high mobility, but the viewpoint changes unintentionally
Solution Approach 1:
The system implements feedback control where the treadmill's rotation about the z-axis is directly coupled to the display module's rotation. When the user steps on the treadmill to change viewpoint, the rotation is precisely transmitted to the display module, and the virtual reality viewpoint changes in synchronization. This feedback mechanism ensures that viewpoint changes are intentional and accurate rather than unintentional.
Solution Approach 2:
The treadmill acts as a precise intermediary mechanism that translates user input (stepping) into controlled rotational movement of the display module. This mediator provides mechanical advantage and precision control, ensuring that the display module rotates only when and how the user intends, thereby improving viewpoint control accuracy while maintaining ease of operation.
3Reliability
If the display module is fixed to allow stable wear, then the viewpoint remains stable, but the user cannot change the virtual reality viewpoint
Solution Approach 1:
The display module transitions from a fixed state to a dynamically controllable state. The treadmill mechanism allows the display module to rotate about the z-axis based on user input, while maintaining stable connection through the treadmill's support structure. This dynamic design enables the display module to be both stable when needed and adaptable when the user wants to change viewpoints.
Solution Approach 2:
The treadmill serves as a dynamic intermediary that connects the user's movement to the display module's rotation. It provides stable support for the display module while simultaneously enabling controlled rotation about the z-axis. This dual function resolves the contradiction by making the system both stable and adaptable through the mediator mechanism.
Data Source
AI summary
The inventive concept relates to a virtual reality experience device that enables a user to stably have a display module on according to the user's physical condition and accurately matches a viewpoint change intended by the user and a virtual reality viewpoint change, thereby realistically guiding exhibitions, performances, expositions, perspectives, and the like.