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Version: 2.0 (Legacy)

Ground Recording

Ground Recording allows automatic recording of video and telemetry data on the ground station.

Overview​

Ground Recording provides:

  • Automatic Video Recording: Record incoming video streams
  • Telemetry Logging: Save flight data and telemetry
  • Screenshot Capture: Automatic screenshot functionality
  • USB Storage: Save recordings to USB storage devices

Storage Requirements​

USB Storage Device​

  • USB Flash Drive: High-speed USB 3.0 recommended
  • External HDD/SSD: For longer recording sessions
  • Format: FAT32 or exFAT for cross-platform compatibility
  • Capacity: Minimum 8GB, 32GB+ recommended

File Formats​

  • Video: AVI format with H.264 compression
  • Telemetry: CSV or binary log format
  • Screenshots: PNG format
  • Timestamps: UTC timestamps for synchronization

Configuration​

Enable Recording​

  1. Insert USB storage device
  2. Access QOpen.HD settings
  3. Navigate to Recording settings
  4. Enable "Ground Recording"
  5. Configure recording parameters

Recording Settings​

  • Video Quality: Bitrate and resolution settings
  • Auto-start: Begin recording automatically
  • Split Files: Create new files at intervals
  • Storage Location: Select USB device

Recording Features​

Automatic Operation​

  • Flight Detection: Start recording when flight begins
  • Storage Management: Automatic cleanup of old files
  • Error Handling: Continue recording despite minor errors
  • Status Indication: Visual recording status display

Manual Control​

  • Start/Stop Recording: Manual recording control
  • Screenshot Capture: Instant screenshot function
  • Bookmark Events: Mark important moments
  • Quick Access: Easy recording controls in OSD

File Organization​

Directory Structure​

/USB_DRIVE/
├── recordings/
│   ├── 2023-12-01/
│   │   ├── flight_001.avi
│   │   ├── flight_001.csv
│   │   └── screenshots/
│   └── 2023-12-02/
└── logs/

File Naming​

  • Date-based: YYYY-MM-DD format
  • Sequential: Automatic flight numbering
  • Descriptive: Include time and duration
  • Synchronized: Matching names for video/telemetry

Playback and Analysis​

Video Playback​

  • Standard Players: Compatible with VLC, Windows Media Player
  • Synchronization: Telemetry overlay during playback
  • Quality: Original video quality preserved
  • Metadata: Embedded flight information

Telemetry Analysis​

  • CSV Import: Import into Excel, MATLAB, etc.
  • Flight Analysis Tools: Use with Mission Planner, APM Planner
  • Custom Scripts: Process data with custom tools
  • Visualization: Create flight path visualizations

Storage Management​

Space Monitoring​

  • Available Space: Monitor remaining storage
  • Auto-cleanup: Remove old recordings when space low
  • Warning System: Alert when storage nearly full
  • Priority System: Keep recent/important recordings

Performance Optimization​

  • High-speed Storage: Use fast USB devices
  • Regular Maintenance: Defragment storage devices
  • Backup Strategy: Regular backup to permanent storage
  • Storage Health: Monitor USB device health

Troubleshooting​

Recording Issues​

  • No Recording: Check USB device connection
  • Corrupted Files: Verify storage device integrity
  • Missing Audio: Check audio configuration
  • Sync Issues: Verify timestamp accuracy

Storage Problems​

  • Full Storage: Enable auto-cleanup or larger device
  • Slow Performance: Use faster USB device
  • File System Errors: Check and repair file system
  • Compatibility: Ensure proper file system format

:::warning Storage Reliability Use high-quality USB storage devices for reliable recording. Low-quality devices may fail during important flights. :::

:::tip Backup Strategy Regularly backup recordings to permanent storage. USB devices can fail or be lost. :::

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