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Autel EVO Lite Drone SDK Integration

Overview

This module integrates the Autel EVO Lite drone SDK with the privaseeAI privacy-focused surveillance system. It provides a comprehensive TypeScript-based interface for drone control, mission planning, event handling, and error recovery.

Architecture

The drone integration follows a modular architecture with clear separation of concerns:

src/drone/
├── types/              # TypeScript type definitions
├── config/             # Configuration management
├── control/            # Drone control and flight operations
├── missions/           # Mission planning and validation
├── events/             # Event handling and telemetry
├── logger/             # Flight operations logging
├── recovery/           # Error handling and recovery
└── adapters/           # Integration with privaseeAI device system

Modules

1. Types (src/drone/types/)

Comprehensive TypeScript definitions for all drone-related data structures:

  • DroneConnectionState: Connection states (disconnected, connecting, connected, error)
  • FlightMode: Supported flight modes (manual, GPS, sport, waypoint, follow_me, orbit, RTH)
  • DroneTelemetry: Complete telemetry data including position, velocity, attitude, battery, GPS, sensors
  • DroneCommand: Command types and structures
  • DroneMission: Mission definitions with waypoints and settings
  • DroneEvent: Event types and payloads
  • FlightLogEntry: Flight log data structures

2. Configuration (src/drone/config/)

DroneConfigManager - Singleton configuration manager with validation:

import { getDroneConfig, updateDroneConfig } from './drone';

// Get configuration
const config = getDroneConfig();

// Update configuration
updateDroneConfig({
  flightSettings: {
    maxAltitude: 100,
    maxSpeed: 12,
  }
});

Configuration sections:

  • connectionSettings: Host, port, protocol, API key, timeouts
  • flightSettings: Speed, altitude, distance limits, battery warnings
  • cameraSettings: Photo/video formats and resolutions
  • privacySettings: Storage, encryption, retention policies

3. Control (src/drone/control/)

DroneController - Main controller for flight operations:

import { createDroneController } from './drone';

const controller = createDroneController('drone-001');

// Connect to drone
await controller.connect({
  host: '192.168.1.100',
  port: 8889,
  apiKey: 'your-api-key'
});

// Flight operations
await controller.takeoff(10); // 10 meters
await controller.moveToPosition(37.7749, -122.4194, 50);
await controller.land();

// Camera operations
await controller.startRecording();
await controller.takePhoto();
await controller.stopRecording();

// Get telemetry
const telemetry = controller.getTelemetry();
console.log('Battery:', telemetry.battery.percentage);

4. Mission Planning (src/drone/missions/)

MissionPlanner - Create, validate, and manage autonomous missions:

import { getMissionPlanner, createSimpleMission } from './drone';

const planner = getMissionPlanner();

// Create mission with waypoints
const mission = planner.createMission('Perimeter Survey', [
  { id: 'wp1', latitude: 37.7749, longitude: -122.4194, altitude: 30 },
  { id: 'wp2', latitude: 37.7750, longitude: -122.4195, altitude: 30 },
  { id: 'wp3', latitude: 37.7751, longitude: -122.4196, altitude: 30 },
], 'Survey the perimeter');

// Validate mission
const validation = planner.validateMission(mission.id);
if (!validation.isValid) {
  console.error('Mission validation failed:', validation.errors);
}

// Set geofence
planner.setGeofence(mission.id, 
  { latitude: 37.7750, longitude: -122.4195 },
  500 // 500 meter radius
);

// Calculate mission stats
const distance = planner.calculateMissionDistance(mission);
const duration = planner.estimateMissionDuration(mission);
console.log(`Mission: ${distance}m, ~${duration}s`);

5. Event Handling (src/drone/events/)

DroneEventEmitter - Event-driven architecture for real-time updates:

import { getEventEmitter } from './drone';

const eventEmitter = getEventEmitter();

// Subscribe to events
const subId = eventEmitter.onTelemetryUpdate((event) => {
  console.log('Telemetry:', event.data);
}, 'drone-001');

eventEmitter.onLowBattery((event) => {
  console.warn('Low battery:', event.data.percentage);
});

eventEmitter.onObstacleDetected((event) => {
  console.warn('Obstacle:', event.data.direction, event.data.distance);
});

// Unsubscribe
eventEmitter.off(subId);

// Get event history
const history = eventEmitter.getEventHistory('drone-001', undefined, 50);

6. Logging (src/drone/logger/)

FlightLogger - Comprehensive logging system for flight operations:

import { getLogger, LogLevel } from './drone';

const logger = getLogger({
  logLevel: LogLevel.INFO,
  enableConsoleLogging: true,
  enableFileLogging: true,
});

// Log messages
logger.info('FLIGHT', 'Takeoff initiated');
logger.warn('BATTERY', 'Battery level low', { percentage: 25 });
logger.error('MOTOR', 'Motor error detected', { motorId: 2 });

// Flight logs
const flightLog = {
  id: 'flight-001',
  droneId: 'drone-001',
  startTime: new Date(),
  takeoffLocation: { latitude: 37.7749, longitude: -122.4194, altitude: 0 },
  events: [],
  errors: [],
  maxAltitude: 0,
  maxSpeed: 0,
  totalDistance: 0,
  averageBatteryUsage: 0,
};

logger.startFlightLog(flightLog);
logger.endFlightLog('flight-001', {
  endTime: new Date(),
  landingLocation: { latitude: 37.7749, longitude: -122.4194, altitude: 0 },
});

7. Error Handling & Recovery (src/drone/recovery/)

DroneErrorHandler - Automatic error recovery mechanisms:

import { getErrorHandler, createDroneError, DroneErrorCode } from './drone';

const errorHandler = getErrorHandler({
  enableAutoRecovery: true,
  maxRetryAttempts: 3,
  enableEmergencyProtocols: true,
});

// Handle errors
const error = createDroneError(
  DroneErrorCode.GPS_SIGNAL_LOST,
  'GPS signal lost',
  'warning',
  true
);

const recoveryAction = await errorHandler.handleError(error, 'drone-001');
console.log('Recovery strategy:', recoveryAction?.strategy);

// Get error history
const history = errorHandler.getErrorHistory('drone-001');

Recovery strategies:

  • RETRY: Retry failed operation with exponential backoff
  • RETURN_HOME: Return to takeoff location
  • EMERGENCY_LAND: Immediate landing at current location
  • HOVER_IN_PLACE: Hold position until condition improves
  • ABORT_MISSION: Cancel current mission
  • CONTINUE: Continue operation despite error

8. Device Adapter (src/drone/adapters/)

DroneAdapter - Integration with privaseeAI device system:

import { createDroneAdapter } from './drone';

const adapter = createDroneAdapter();

// Connect to drone
await adapter.connect({
  host: '192.168.1.100',
  port: 8889,
  droneId: 'drone-001',
  apiKey: 'your-api-key',
});

// Get status
const status = await adapter.getStatus();
console.log('Battery:', status.batteryLevel);

// Start surveillance
await adapter.startDetection();

// Send commands
await adapter.sendCommand({
  type: 'capture_image',
  timeout: 5000,
});

// Stop surveillance
await adapter.stopDetection();

// Disconnect
await adapter.disconnect();

Environment Configuration

Add these variables to your .env file:

# Connection Settings
DRONE_HOST=localhost
DRONE_PORT=8889
DRONE_PROTOCOL=tcp
DRONE_API_KEY=your-api-key-here

# Flight Settings
DRONE_MAX_SPEED=15          # m/s
DRONE_MAX_ALTITUDE=120      # meters
DRONE_MAX_DISTANCE=500      # meters
DRONE_RTH_ALTITUDE=30       # meters

# Logging
DRONE_LOG_DIR=./logs/drone

Usage Example

Complete example integrating all modules:

import {
  createDroneController,
  getMissionPlanner,
  getEventEmitter,
  getLogger,
  LogLevel,
} from './drone';

// Initialize logger
const logger = getLogger({ logLevel: LogLevel.INFO });

// Initialize drone controller
const controller = createDroneController('drone-001');

// Set up event listeners
const eventEmitter = getEventEmitter();

eventEmitter.onTelemetryUpdate((event) => {
  console.log('Battery:', event.data.battery.percentage);
});

eventEmitter.onLowBattery((event) => {
  console.warn('Low battery warning:', event.data.percentage);
});

// Connect to drone
await controller.connect({
  host: '192.168.1.100',
  port: 8889,
});

// Create and validate mission
const planner = getMissionPlanner();
const mission = planner.createMission('Perimeter Survey', [
  { id: 'wp1', latitude: 37.7749, longitude: -122.4194, altitude: 30 },
  { id: 'wp2', latitude: 37.7750, longitude: -122.4195, altitude: 30 },
  { id: 'wp3', latitude: 37.7749, longitude: -122.4194, altitude: 30 },
]);

const validation = planner.validateMission(mission.id);
if (validation.isValid) {
  // Execute mission
  await controller.takeoff(5);
  
  for (const waypoint of mission.waypoints) {
    await controller.moveToPosition(
      waypoint.latitude,
      waypoint.longitude,
      waypoint.altitude
    );
    await controller.takePhoto();
  }
  
  await controller.land();
} else {
  console.error('Mission validation failed:', validation.errors);
}

// Disconnect
await controller.disconnect();

Privacy & Security

This integration follows privaseeAI's privacy-first approach:

  1. Local-First: All data is stored locally by default
  2. Encryption: Flight logs can be encrypted at rest
  3. Retention: Configurable auto-deletion of old data
  4. Authentication: API key-based authentication for drone access
  5. Audit Logging: All operations are logged for accountability

Testing

The drone modules use placeholder implementations for SDK integration. To integrate with actual Autel SDK:

  1. Install Autel EVO Lite SDK dependencies
  2. Replace placeholder methods in DroneController with actual SDK calls
  3. Update telemetry updates to use real SDK data
  4. Implement camera and video streaming integration

Future Enhancements

  • Integration with actual Autel EVO Lite SDK
  • Real-time video streaming from drone camera
  • AI-powered object detection on drone footage
  • Multi-drone coordination and swarm control
  • Advanced mission planning with obstacle avoidance
  • Integration with weather APIs for flight safety
  • Mobile app for remote drone control