Transcript Smart Dust Goal: • Distributed sensor networks • Sensor nodes: •Autonomous • • • • Sensor Interface Power: battery, solar, cap. Comm: LOS Optical (CCR, Laser) •1mm3 Challenges: UCB: Pister, Kahn, Boser •1 Joule MLB: Morris •1 kilometer UTRC: Murray •1

Smart Dust
Goal:
• Distributed sensor networks
• Sensor nodes:
•Autonomous
•
•
•
•
Sensor
Interface
Power: battery, solar, cap.
Comm: LOS Optical (CCR,
Laser)
•1mm3
Challenges:
UCB: Pister, Kahn, Boser
•1 Joule
MLB: Morris
•1 kilometer
UTRC: Murray
•1 piece
Smart Dust Components
Laser diode
III-V process
Passive CCR comm.
MEMS/polysilicon
Active beam steering laser comm.
MEMS/optical quality polysilicon
Analog I/O, DSP, Control
COTS CMOS
Power capacitor
Multi-layer ceramic
Sensor
MEMS/bulk, surface, ...
Solar cell
CMOS or III-V
Thick film battery
Sol/gel V2O5
1-2 mm
Dust components
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•
•
•
•
•
•
Thick film battery: 1mm^3, 1 J storage
Power capacitor: 0.25mm^3, 1uJ storage
Solar cell: 1x1x0.1mm^3, 0.1mW generation
CMOS controller: 1x1x0.1mm^3
Sensor: 0.5x0.5x0.1mm^3
Passive CCR comm: 0.5x0.5x0.1mm^3, 10kbps, 1uW, 1km
Active laser comm: 1x0.5x0.1mm^3, 1Mbps, 10mW, 10km
• Total volume: < 1.5 mm^3
• Total mass: < 5 mgm
Airborne Dust
Mapleseed solar cell
MEMS/Hexsil/SOI
Rocket dust
MEMS/Hexsil/SOI
1-5 cm
Controlled auto-rotator
MEMS/Hexsil/SOI