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SMART DUST

June 22, 2001 Kent state University. SMART DUST. from K. Pister, J. Kahn, B. Boser, and S. Morris Presented for Software Design by Xiaozhou David Zhu. Goals. Autonomous sensor node (mote) in 1 mm 3 MAV delivery Thousands of motes Many interrogators

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SMART DUST

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  1. June 22, 2001 Kent state University SMART DUST from K. Pister, J. Kahn, B. Boser, and S. Morris Presented for Software Design by Xiaozhou David Zhu

  2. Goals • Autonomous sensor node (mote) in 1 mm3 • MAV delivery • Thousands of motes • Many interrogators • Demonstrate useful/complex integration in 1 mm3

  3. COTS Dust GOALS: • Create a network of sensors • Explore system design issues • Provide a platform to test Dust components • Use off the shelf components

  4. N W E S 2 Axis Magnetic Sensor 2 Axis Accelerometer Light Intensity Sensor Humidity Sensor Pressure Sensor Temperature Sensor COTS Dust - RF Motes • Atmel Microprocessor • RF Monolithics transceiver • 916MHz, ~20m range, 4800 bps • 1 week fully active, 2 yr @1%

  5. COTS Dust - Distributed Algorithms • 1”, $100 Sensor nodes are easy • algorithms?

  6. COTS Dust - Optical Motes Laser mote • 650nm laser pointer • 2 day life full duty CCR mote • 4 corner cubes • 40% hemisphere

  7. CCR Interrogator

  8. Video Semaphore Decoding Diverged beam @ 300m Shadow or full sunlight San Francisco (Coit Tower) to Berkeley (Cory Hall)

  9. 1 Mbps CMOS imaging receiver Put an asynchronous receiver at every pixel 0.25 um CMOS in fab Funded by DARPA/MTO/STAB

  10. 300 um Micro Mote - First Attempt

  11. AR coated dome lens Steering Mirror laser CMOS ASIC 2D beam scanning

  12. 6-bit DAC Driving Scanning Mirror • Open loop control • Insensitive to disturbance • Potentially low power

  13. ~8mm3 laser scanner Two 4-bit mechanical DACs control mirror scan angles. ~6 degrees azimuth, 3 elevation

  14. Power and Energy • Sources • Solar cells • Combustion/Thermopiles • Storage • Batteries ~1 J/mm3 • Capacitors ~1 mJ/mm3 • Usage • Digital control: nJ/instruction • Analog circuitry: nJ/sample • Communication: nJ/bit

  15. Combustion • Solid rocket propellant • integrated igniter • thermoelectric generator

  16. Dust Delivery • Silicon maple seeds • Silicon dandelions

  17. MAV Delivery Built by MLB Co. • 60 mph • 18 min • 1 mi comm 8” 6”

  18. 24” Bat 40 mph top speed 30 minute loiter autopilot: pressure sensor, gyros, XLs 2 planes, 1 ground station, in 1 suitcase spyplanes.com

  19. Marine LOE 4 3 MAVs participated, 1 flew 7 sorties on station in minutes

  20. Goal for ‘01

  21. Virtual Keyboard

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