Electro-Exploding Wire Haptic Feedback for Explosive Simulation
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Solution Overview
Problem
Current haptic feedback technologies fail to provide realistic and safe simulations of explosive events in virtual reality and gaming environments, lacking in controlled and environmentally friendly methods to recreate the tactile, auditory, and visual effects of detonations.
Innovation Solution
A haptic generator system utilizing an electro-exploding wire array, powered by a capacitive energy storage unit and controlled by a switching network, which vaporizes to generate a shockwave and pressure wave, simulating explosive events with customizable characteristics and minimizing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional explosive devices are used for haptic feedback, then realistic explosive effects are achieved, but safety hazards and environmental contamination increase
Solution Approach 1:
The patent replaces traditional mechanical explosive devices with an electrodynamic haptic generator that uses electromagnetic fields to drive a diaphragm. This substitution eliminates the need for actual explosives while producing similar haptic effects through controlled electromagnetic force, thereby resolving the contradiction between achieving realistic explosive effects and avoiding safety hazards.
Solution Approach 2:
The patent converts the harmful effects of real explosions (uncontrolled shockwaves, debris, contamination) into beneficial controlled haptic feedback. By using electromagnetic actuation to generate controlled pressure waves and vibrations that simulate explosive sensations without the actual harmful byproducts, the system transforms the concept of explosion from a hazardous physical event into a safe simulated sensory experience.
2Reliability
If high energy is delivered to create realistic explosive effects, then haptic feedback realism is improved, but system complexity and control difficulty increase
Solution Approach 1:
The patent introduces a diaphragm as an intermediary element between the electromagnetic coil and the air medium. The electromagnetic coil generates magnetic force that drives the diaphragm, which in turn creates pressure waves in the air. This intermediary approach simplifies control by decoupling the electrical input from the complex fluid dynamics, allowing precise energy delivery while maintaining manageable system complexity.
Solution Approach 2:
The patent controls haptic feedback realism by adjusting electromagnetic parameters (current, voltage, pulse duration) rather than changing the fundamental system architecture. By varying these electrical parameters, the system can deliver different energy levels to create various explosive effects without increasing mechanical complexity, thus resolving the contradiction between realism and controllability.
3Productivity
If rapid series of explosive events are simulated, then simulation capability is improved, but energy consumption and heat generation increase
Solution Approach 1:
The patent employs periodic pulsed electromagnetic actuation to simulate rapid series of explosive events. By delivering energy in controlled pulses rather than continuous operation, the system can achieve high simulation capability through repeated rapid firing while allowing cooling intervals between pulses, thus managing heat generation and energy consumption effectively.
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 recreates the sensory effects of explosive detonations with precise control over energy delivery, ensuring safety and minimal environmental contamination, while allowing for adjustable haptic feedback levels and rapid firing capabilities.
Implementation Method 1
The electro-exploding wire is a replaceable conductor that vaporizes upon application of sufficient energy
Implementation Method 2
The explosive event generates a shockwave and a pressure wave that simulates the visual, audio, and tactile response of a range of explosive detonations
Implementation Method 3
The energy storage unit includes one or more capacitors that are charged by the power supply
Implementation Method 4
The conversion to plasma of the electro-exploding wire array minimizes any shrapnel or environmental contaminants from the explosive event
Data Source
AI summary
Haptic feedback system that simulates a detonation or explosive event. The system includes a power supply, an energy storage circuit, a switching circuit, and a conductor operatively connected to said energy storage circuit through said switching circuit whereby said conductor causes a haptic event when said energy storage circuit is electrically connected to said conductor by operation of said switching circuit. The system creates real explosions, shock waves and pressure waves in a safe manner for use in a simulator.