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