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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

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Presentation Transcript
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
Goals
  • Autonomous sensor node (mote) in 1 mm3
  • MAV delivery
  • Thousands of motes
  • Many interrogators
  • Demonstrate useful/complex integration in 1 mm3
cots dust
COTS Dust

GOALS:

  • Create a network of sensors
  • Explore system design issues
  • Provide a platform to test Dust components
  • Use off the shelf components
cots dust rf motes

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%
cots dust distributed algorithms
COTS Dust - Distributed Algorithms
  • 1”, $100 Sensor nodes are easy
  • algorithms?
cots dust optical motes
COTS Dust - Optical Motes

Laser mote

  • 650nm laser pointer
  • 2 day life full duty

CCR mote

  • 4 corner cubes
  • 40% hemisphere
video semaphore decoding
Video Semaphore Decoding

Diverged beam @ 300m

Shadow or full sunlight

San Francisco (Coit Tower) to

Berkeley (Cory Hall)

1 mbps cmos imaging receiver
1 Mbps CMOS imaging receiver

Put an asynchronous receiver

at every pixel

0.25 um CMOS in fab

Funded by DARPA/MTO/STAB

2d beam scanning

AR coated dome

lens

Steering Mirror

laser

CMOS ASIC

2D beam scanning
6 bit dac driving scanning mirror
6-bit DAC Driving Scanning Mirror
  • Open loop control
  • Insensitive to disturbance
  • Potentially low power
8mm 3 laser scanner
~8mm3 laser scanner

Two 4-bit mechanical DACs control mirror scan angles.

~6 degrees azimuth, 3 elevation

power and energy
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
combustion
Combustion
  • Solid rocket propellant
  • integrated igniter
  • thermoelectric generator
dust delivery
Dust Delivery
  • Silicon maple seeds
  • Silicon dandelions
mav delivery
MAV Delivery

Built by MLB Co.

  • 60 mph
  • 18 min
  • 1 mi comm

8”

6”

24 bat
24” Bat

40 mph top speed

30 minute loiter

autopilot: pressure sensor, gyros, XLs

2 planes, 1 ground station, in 1 suitcase

spyplanes.com

marine loe 4
Marine LOE 4

3 MAVs participated, 1 flew

7 sorties

on station in minutes