Virtual Touch Simulation Using Micro-Actuator Arrays for Texture Realism
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Solution Overview
Problem
Existing systems fail to accurately simulate the texture and dynamic touch sensations in virtual environments, limiting the user's physical interaction experience.
Innovation Solution
A system utilizing an array of micro-touch simulators, such as electrically charged micro-spheres or magnetic cylinders, embedded in articles of clothing, applies controlled electric or magnetic fields to simulate various touch sensations, including texture and movement, with a resolution of 10 microns or greater.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control arms are attached to fingers in a glove to simulate touch, then the user may sense a sort of touch or resistance, but the resolution is limited and cannot simulate the texture of a touched thing in the virtual world
Solution Approach 1:
The glove is divided into multiple independent chambers, each containing an inflatable bladder that can be individually controlled. This segmentation allows different regions of the glove to simulate different tactile sensations independently, enabling high-resolution texture simulation across the hand surface.
Solution Approach 2:
Each chamber in the glove is equipped with its own inflatable bladder that can be independently actuated. This local quality control allows specific regions to provide customized tactile feedback matching the local texture being simulated, rather than uniform feedback across the entire hand.
2Ease of operation
If inflatable air bags or pockets are used to cause a touch sensation, then the user may sense touch, but the resolution is limited in granularity and cannot simulate the texture of a touched thing
Solution Approach 1:
The glove incorporates multiple discrete chambers with individual bladders rather than a single inflatable structure. This segmentation creates fine-grained control over tactile feedback, allowing simulation of detailed textures through selective inflation of specific chambers corresponding to different skin contact points.
Solution Approach 2:
The system uses dynamically controllable inflatable bladders that can be inflated and deflated in real-time based on the virtual object being touched. This dynamic adjustment allows the system to adapt the tactile feedback characteristics to match different textures, from smooth to rough surfaces.
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 system effectively simulates the texture and dynamic touch sensations of virtual objects, enhancing the user's physical interaction experience by accurately replicating the feel of virtual environments, such as snakeskin or virtual objects like a sword or dragon, with high resolution and realism.
Implementation Method 1
A system applies respective electric fields to a set of micro-touch simulators causing the micro-touch simulators to press against the skin of the user
Implementation Method 2
A system applies respective magnetic fields to a set of micro-touch simulators causing the micro-touch simulators to press against the skin of the user
Data Source
AI summary
Simulating interaction with an object represented in a virtual environment is disclosed. A system includes one or more circuits configured to receive an indicator of a sensed touch in a virtual environment and to determine, based on the indicator, an area of the sensed touch. The one or more circuits are further configured to generate a simulated touch by applying a field to one or more touch simulators, the field actuating the one or more touch simulators by linearly displacing an element of the one or more touch simulators. In implementations, the touch simulators are actuated based on data describing textures and weights of the object represented in the virtual environment.