Electromagnetic Coil Tactile Feedback for VR Immersion
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Solution Overview
Problem
Current virtual reality devices lack effective tactile feedback, which reduces user immersion and experience, especially in virtual scenes involving grabbing and touching objects.
Innovation Solution
A wearable device utilizing an electromagnetic coil set, driving circuit, and control circuit to generate tactile feedback by producing magnetic fields that interact to provide repulsive or attractive forces, enhancing physical tactility when applied in virtual reality scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If virtual reality devices are used without tactile feedback mechanisms, then the device complexity is reduced, but user immersion and experience deteriorate
Solution Approach 1:
The patent replaces mechanical tactile feedback mechanisms with an electromagnetic field-based system. Electromagnetic coils generate magnetic fields that interact to produce tactile sensations, eliminating the need for complex mechanical actuators while maintaining user immersion in virtual reality environments
Solution Approach 2:
The patent changes the physical state and parameters of electromagnetic coils by controlling current magnitude and direction to different coils. By adjusting these electrical parameters, the system generates varying magnetic field strengths and directions, creating diverse tactile feedback sensations without mechanical complexity
2Adaptability or versatility
If electromagnetic coils are added to provide tactile feedback, then tactile feedback capability is improved, but device complexity increases
Solution Approach 1:
The patent divides the tactile feedback system into multiple independent electromagnetic coils that can be controlled separately. Each coil can be activated independently with specific current parameters to generate tactile sensations at different locations and intensities, providing versatile feedback while maintaining modular simplicity
Solution Approach 2:
The electromagnetic coil system serves multiple functions: generating magnetic fields, producing tactile forces, and providing spatially differentiated feedback. This multi-functionality reduces the need for separate mechanical components, achieving versatile tactile capability without proportional increase in overall device complexity
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 solution improves user immersion and experience by providing authentic tactile feedback in virtual reality environments, enhancing the sense of touch during interactions with virtual objects.
Implementation Method 1
the electromagnetic coil set is configured to receive the coil current and generate the tactile feedback based on the coil current
Implementation Method 2
the tactile feedback includes feedback of a repulsive force generated according to mutual repulsion of the plurality of magnetic fields, feedback of an attractive force generated according to mutual attraction of the plurality of magnetic fields
Data Source
AI summary
A wearable device, an electronic system, an electronic device, a tactile feedback method and a storage medium are provided. The wearable device with tactile feedback includes an electromagnetic coil set, a driving circuit and a control circuit, the driving circuit is coupled with the electromagnetic coil set; the control circuit is configured to control the driving circuit to generate and output a coil current corresponding to the electromagnetic coil set to the electromagnetic coil set according to a control command; and the electromagnetic coil set is configured to receive the coil current and generate the tactile feedback based on the coil current.