VR Ride Platform Low-Frequency Vibration Vestibular Sync
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Solution Overview
Problem
Virtual reality systems often cause motion sickness due to the disconnect between visual and vestibular systems, leading to symptoms like dizziness and nausea, especially when external reference points are blocked and 3D simulations are used.
Innovation Solution
A virtual reality ride system that includes a dynamic platform capable of producing low-frequency vibrations between 5 Hz and 70 Hz, which are undetectable to the human senses of hearing and touch but stimulate the vestibular system, synchronizing with visual events to reduce the inconsistency between visual and physical motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a virtual reality system uses 3D display and blocks external reference points to provide immersive experience, then the immersion quality is improved, but motion sickness occurs due to disconnect between visual and vestibular systems
Solution Approach 1:
The patent applies mechanical vibration at low frequencies (0.1-10 Hz) to the platform to stimulate the vestibular system. This creates physical motion sensations that correspond to the visual motion displayed, reducing the sensory conflict between visual and vestibular inputs that causes motion sickness, while maintaining the immersive 3D display environment.
Solution Approach 2:
The patent introduces an intermediary vibration mechanism that mediates between the visual display system and the user's vestibular system. The vibrations act as a bridge, providing tactile feedback that reconciles the disconnect between visual motion perception and physical motion sensation, thereby reducing motion sickness.
2Object-affected harmful factors
If the dynamic platform produces noticeable vibrations to stimulate the vestibular system, then motion sickness is reduced, but the vibrations become perceptible and distracting to the user
Solution Approach 1:
The patent changes the frequency parameter of vibrations to a low range (0.1-10 Hz) that is effective for stimulating the vestibular system but below the threshold of conscious perception for most users. This parameter optimization allows the system to reduce motion sickness while maintaining user comfort and avoiding distracting sensations.
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 low-frequency vibrations effectively reduce motion sickness by aligning the vestibular and visual systems, providing a more immersive experience without inducing nausea or dizziness, even during smooth virtual movements.
Implementation Method 1
The dynamic platform is configured to produce the motions associated with the events in the virtual environment based on the first data, and to produce the low-frequency vibrations based on the second data. The low-frequency vibrations include a frequency between about 5 Hz and 70 Hz.
Data Source
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AI summary
A virtual reality ride system including a headset, a control unit, and a dynamic platform. The headset includes a display unit configured to display a video of an animated virtual environment. The control unit includes one or more processors configured to perform render processing that renders the video of the virtual environment; event motion processing that generates first data representing motions associated with events in the virtual environment; and low-frequency motion processing that generates second data representing low-frequency vibrations unrelated to the events in the virtual environment. The dynamic platform is configured to produce the motions associated with the events in the virtual environment based on the first data, and to produce the low-frequency vibrations based on the second data. The low-frequency vibrations include a frequency between about 5 Hz and 70 Hz.