Transcript Build your own Predator UAV… …at 99.95% discount

Build your own Predator UAV…
…at 99.95% discount
Michael Weigand
Michael Weigand
United States Military Academy
Shmoocon ‘10 “Build It” Talk. 6 FEB 2010
Video OSB PRO Expander. www.nghobbies.com
Disclaimers
• This XXXXXX presentation XXXXX not endorsed
XXXXXX has nothing to do XXXXXXXX XXXX
with the DoD, Army, XXXXX or West Point.
• XXXXXX XXX XXXXXX XXX X XXXX XXX XXXX
• Use at own risk.
MQ-9 Reaper
err.. “Predator”
Credit: http://www.defense.gov/
UAVs and Autonomous Technology
• Autonomous
– “Self-governing. Governing independently”
– No human intervention
– Medium to large aerial systems generally have the
highest levels of autonomy of any robots
• Environment
• Sensing
• Navigation
Source: www.eol.ucar.edu
Cheap >>> Expensive
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MicroPilot
Procerus
Unav
Cloudcap Technology
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AttoPilot
FlexiPilot/EasyUAV
Paparazzi
UAVDevBoard
ArduPilot
BMW >>> Custom Build
The Market Place
More Info: Google keywords
UAV Essentials
Lift
• Flying
– Stabilization
– Thrust/Lift > Drag
• Navigating
• Operating Payloads
Drag
Thrust
Weight
– Sensing (visible, IR, etc.)
– Sniffing (say 802.11, air samples, misc. RF)
– Transmitting (RF, lasers)
Stabilization == Wings Level Please
• Infra-Red Sensors
– Really cheap! ($40-60)
– Easy to use
– Not very effective in blizzards, dense
fog, extremely mountainous terrain..
• IMU, Inertial Measurement Unit
– Becoming cheap ($80-$200)
– More complex
– Can be internally enclosed in airframe
– Effective in all weather, terrain conditions
Thermopile based approach
CoPilot Flight Stabilization Sensor
www.fmadirect.com
Source:
www.paparazzi.enac.fr/wiki/Theory_of
_Operation
Servos
Source:
www.servocity.com
ArduPilot
“The $25 Autopilot”
Based on the popular Arduino microcontroller.
Created by Jordi Munoz with support from Wired Editor-in-Chief Chris Anderson
Sold at www.Sparkfun.com
Community based at www.DIYDrones.com
ArduPilot Shield
Provides Airspeed, other function.
Purchase at www.DIYDrones.com store.
System Overview – ArduPilot v2
Source:
www.DIYDrones.com
ArduPilot Manual v2
ArduPilot System Integration
Source:
www.DIYDrones.com
ArduPilot Manual v2
Source:
www.DIYDrones.com
ArduPilot Manual v2
ArduPilot Config Tool
Created by the DIYDrones.com community to upload course information easily!
Source:
www.DIYDrones.com
ArduPilot Manual v2
Telemetry
• Zigbee (802.14.5) radios
used for telemetry data
• 915 MHz is best
• Xbee Pro 900 XSC RPSMA
with proper antennas get
10-12 mile range
• Go with RPSMA
connectors!
Breakout Board Vendors:
www.Sparkfun.com
www.ladyAda.com
Antenna Vendors:
www.Sparkfun.com
www.L-com.com
Video Feed
• Cameras
– Board Cameras are cheap, small, light, have decent
quality
• Transmitters
– Tough Selection for good distance..
– Have to have Ham Radio License to use good bands
– 900 Mhz is good but interferes with other systems
– Roll your own! Recommend 434 Mhz with filters for
harmonics or 1.25 Ghz ATV bands
Cameras:
www.supercircuits.com
Search “Board Cameras”
Tx/Rx Systems:
www.rangevideo.com
License:
www.arrl.com
$12-14 for Ham Test! Do it!
GPS
• Must-Have system for positioning data
• High update/refresh rate
• Getting smaller, cheaper, easier to use
GPS:
www.store.diydrones.com
www.sparkfun.com
Air Frame
• Foam is best!
– Cheap
– Easy to fix (Gorilla Glue mixed with water will
foam to make a great bond)
– Easy to work with (exact-o knife = golden)
– Can Tape Together! (Scotch and Packing Tape)
– Durable (Landed in a tree in front of the hotel..)
Air Frame of Choice
• Ladies and Gentlemen, The Multiplex Easy Star
Finished!
Payload
MOVIE TIME!!
Future Work
• ArduPilot Mega coming soon!
– Follow at Diydrones.com
– Push waypoint and course updates to UAV live
– More processing power, options, bells, whistles
• Touch interface on Android phone for control
• Easier Configuration
Issues
• Legal Issues
– Fly under Model Airplane Regulations
• Under 400 feet
• Within Line of Sight
• Have ability to take control (safety)
• RF Issues
– Video Feed must been unencrypted if its on the
Ham Bands, transmit your Callsign
• “Its not stalking if its Love”
Questions??