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SMART DUST

DARPA. DARPA. MTO. MEMS. SMART DUST. K. Pister, J. Kahn, B. Boser (UCB) S. Morris (MLB) http://eecs.berkeley.edu/~pister/SmartDust http://spyplanes.com. Goals. Autonomous sensor node (mote) in 1 mm 3 MAV delivery Thousands of motes Many interrogators

jacobmccormick
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SMART DUST

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  1. DARPA DARPA MTO MEMS SMART DUST K. Pister, J. Kahn, B. Boser (UCB) S. Morris (MLB) http://eecs.berkeley.edu/~pister/SmartDust http://spyplanes.com

  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 Interogator

  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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