Laser Training Device Wave-Like EMS Pain Simulation
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Solution Overview
Problem
Existing training devices with laser-assisted weapons fail to provide a realistic injury simulation, as they primarily focus on conveying pain through brief electrical shocks that are not sustained and do not accurately reflect the location or intensity of hits, leading to unrealistic muscle contraction and skin irritation.
Innovation Solution
A training device with a central unit, receiving units, and pads that deliver wave-like varying stimulation currents to simulate muscle contraction pain, providing sustained and location-specific pain scenarios that mimic the experience of gunshot wounds, using electro-muscular stimulation (EMS) and transcutaneous electrical nerve stimulation (TENS) to create realistic injury simulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brief high-voltage electrical shocks are delivered to simulate pain, then pain sensation is conveyed to the training person, but the simulation is not realistic because the shocks are brief and allow quick recovery between pulses
Solution Approach 1:
The patent applies continuous electrical stimulation instead of brief periodic shocks. The stimulation is delivered continuously upon detection of a laser hit and maintains until a reset condition occurs, preventing the quick recovery between pulses that characterizes prior art. This continuous action creates sustained muscle contraction and pain sensation that realistically simulates an ongoing injury state during training scenarios.
2Reliability
If electrical shocks are delivered to fixed points on the body via vest electrodes, then pain is conveyed to the training person, but the pain location does not correspond to the actual hit zone
Solution Approach 1:
The patent delivers electrical stimulation locally at the specific body region where a laser hit is detected rather than to fixed vest electrodes. The system identifies the hit location and applies stimulation only to that localized area, creating realistic pain at the correct anatomical position. This localised approach ensures the training person experiences pain at the actual wound site, improving the authenticity of the injury simulation.
3Ease of operation
If single periodic pulses are delivered with pauses between them, then the user can internalize the program flow and recover quickly, but this does not correspond to realistic injury scenarios
Solution Approach 1:
The patent eliminates pauses between stimulation pulses by delivering continuous electrical stimulation from the moment of laser hit detection until a reset condition occurs. This continuous delivery prevents the user from internalizing program flow or recovering between pulses, accurately reflecting the uninterrupted pain and muscle contraction experienced in real combat injuries. The stimulation persists without interruption to maintain realistic training conditions.
4Reliability
If high-voltage pulses are delivered to cause muscle contraction, then pain is experienced by the training person, but skin burns and irritation occur in the electrode area
Solution Approach 1:
The patent modifies the electrical stimulation parameters by delivering continuous low-voltage stimulation instead of brief high-voltage pulses. This parameter change maintains sufficient current to cause realistic muscle contraction and pain sensation while reducing the peak voltage that causes skin burns and irritation. The continuous low-voltage approach sustains the therapeutic and training effects without the harmful side effects of high-voltage periodic pulses.
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 device achieves a more realistic injury simulation by delivering continuous, irregular stimulation currents that cause prolonged muscle contraction and varying pain levels, simulating the experience of gunshot wounds with different intensities and durations, enhancing the realism of training scenarios.
Implementation Method 1
a laser unit (9) of a first training person (11) arranged on a first weapon (27) and emitting a laser signal (28) in the direction of a receiving unit (8) of a second training person (12)
Implementation Method 2
the pad (13) delivers a wave-like varying stimulation current (43), which causes muscular contraction pain in the training person (11, 12)
Implementation Method 3
using electro-muscular stimulation (EMS) and transcutaneous electrical nerve stimulation (TENS) to create realistic injury simulations
Data Source
AI summary
Training device (1) with a laser-assisted weapon comprising a central unit (2), at least one receiving unit (8), a laser unit (9) and at least one person-worn pad (9) that can be energized with stimulation current (43), the laser unit (9) of a first training person (11) being arranged on a first weapon (27) and emitting a laser signal (28) in the direction of a receiving unit (8) of a second training person (12), wherein, when the laser signal (28) is detected by the receiving unit (8), this is evaluated as a hit by the central unit (2), and the central unit (2) sends at least one current pulse to the at least one pad (13), wherein, when a hit is detected, the pad (13) delivers a wave-like varying stimulation current (43), which causes muscular contraction pain in the training person.