3D Drone Surveying

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3D Drone Surveying

  1. 1. 3D Drone Surveying Todd Stellanova todd@droneflow.com Droneflow
  2. 2. Current Drone Surveys • You see a lot of fixed wings (planes) covering farms and forests • Flying relatively high and fast (planes have a high minimum stall speed) • Great for covering lots of area because they move so fast • Basically 2D with some ability to extract 3D information
  3. 3. The Problem • What if you need to cover a smaller volume in much greater detail? • What if you want to use special sensors that require slower flight? • What if you need to map 3D features such as cliff sides, caves, lava tubes, sinkholes, forest canopy structures? • What if you want to monitor the same spot over and over at altitude?
  4. 4. Hovering VTOL Drones • Copters / multirotors • Able to cover 3D volumes with precise flight control • Able to move at a speed you dictate— no minimum stall speed • Many sizes/payloads
  5. 5. 3D Mapping Precise 3D flight control + S.L.A.M. + New lightweight sensors = Real-time 3D mapping
  6. 6. SLAM: Simultaneous Localization and Mapping • Real-time mapping of the drone’s environment • Can be used for collision avoidance without a priori knowledge of the environment • Indoors: Visible+IR (Kinect), Outdoors: Sonar, Lidar, SFM
  7. 7. Google self-driving car uses SLAM with LIDAR and CV
  8. 8. Alternative Sensors Take advantage of flying low and slow
  9. 9. Acoustic Mapping • Flying low and slow means you can record & map sounds • Copter acoustic signature is fairly consistent (~4kHz), easy to filter out • Recurring population surveys
  10. 10. Air Sampling • Samples of air from specific altitudes with timestamps, temp, pressure, humidity… • Gases (e.g. SOx, NOx) • Microorganisms • Realtime analysis or sample and analyze later
  11. 11. Radiation Sampling • Fly compact geiger counters over dynamically changing landscapes • Monitor EMF signatures at the same time
  12. 12. Virtual Observation Tower Deploy a variable-height observation platform wherever you need it
  13. 13. A Tower Where You Need It • Dronehaus monitoring stations could be deployed anywhere
  14. 14. Droneflow Q&A todd@droneflow.com

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