🤟 WIA Standards

🦾 Prosthetic Control Simulator

Interactive myoelectric prosthetic control testing environment

EMG Signal Data Format

Live EMG Channels

Channel 1 (Flexor) ●

0 μV

Channel 2 (Extensor) ●

0 μV

Channel 3 (Pronator) ●

0 μV

Channel 4 (Supinator) ●

0 μV

JSON Data Structure

{
  "version": "1.0.0",
  "timestamp": 1735142400000,
  "device": {
    "id": "PROS-2024-001",
    "type": "myoelectric",
    "channels": 8
  },
  "emg": {
    "channels": [
      { "id": 1, "muscle": "flexor", "value": 245.6, "unit": "μV" },
      { "id": 2, "muscle": "extensor", "value": 189.3, "unit": "μV" },
      { "id": 3, "muscle": "pronator", "value": 312.8, "unit": "μV" },
      { "id": 4, "muscle": "supinator", "value": 156.2, "unit": "μV" }
    ],
    "sampleRate": 1000,
    "resolution": 16
  },
  "control": {
    "mode": "proportional",
    "threshold": 150,
    "gain": 1.2
  }
}

Control Algorithms

Algorithm Selection

Control Algorithm:

🦾

Grip Force

0 N

Position

0°

Response

0 ms

Accuracy

Threshold Control

Simple on/off activation
Low computational cost
Fast response time (<50ms)
Best for binary grips

Proportional Control

Continuous force modulation
Natural user experience
Response time ~100ms
Requires calibration

Pattern Recognition

Multi-DOF control
Machine learning based
High accuracy (95%+)
Adaptive to user

Communication Protocol

Protocol Configuration

Transport:

Baud Rate:

Encoding:

Protocol Testing

Command:

Payload:

Protocol Specification

Command	Opcode	Payload Size	Response Time
GET_STATUS	0x01	4 bytes	<10ms
SET_CONTROL	0x02	16 bytes	<5ms
CALIBRATE	0x03	32 bytes	<50ms
GET_FEEDBACK	0x04	8 bytes	<15ms
UPDATE_CONFIG	0x05	64 bytes	<30ms

System Integration

Integration Components

🧠 Neural Interface

Targeted muscle reinnervation (TMR)
Peripheral nerve interface (PNI)
Direct cortical interface
8-16 channel EMG array

🤖 Prosthetic Device

Multi-DOF hand/arm
22 degrees of freedom
Individual finger control
Wrist rotation/flexion

👆 Sensory Feedback

Haptic vibration motors
Transcutaneous electrical stimulation
Force and pressure sensing
Temperature feedback

SDK Integration Example

Programming Language:

import { ProstheticControl } from '@wia/prosthetic-control';

// Initialize prosthetic controller
const controller = new ProstheticControl({
  deviceId: 'PROS-2024-001',
  channels: 8,
  sampleRate: 1000
});

// Connect to device
await controller.connect();

// Start EMG monitoring
controller.on('emg', (data) => {
  console.log('EMG Signal:', data.channels);

  // Process signals with pattern recognition
  const gesture = controller.recognizePattern(data);

  // Send control command
  controller.setPosition(gesture.position);
  controller.setForce(gesture.force);
});

// Enable sensory feedback
controller.enableFeedback({
  haptic: true,
  temperature: true,
  pressure: true
});

// Calibrate system
await controller.calibrate({
  duration: 30000, // 30 seconds
  gestures: ['rest', 'fist', 'open', 'pinch']
});

Real-Time Testing

Control Panel

Thumb

Index Finger

Middle Finger

Wrist Rotation

0°

Preset Gestures

🖐️

Active DOF

0/22

Power

0 W

Battery

100%

Latency

0 ms

Performance Metrics

Metric	Current	Target	Status
Response Time	0 ms	<100 ms	⏳
Accuracy	0%	>95%	⏳
Success Rate	0%	>90%	⏳
Power Efficiency	0 W/hr	<5 W/hr	⏳