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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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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

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


Ccr interrogator

CCR Interrogator


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


Micro mote first attempt

300 um

Micro Mote - First Attempt


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


Goal for 01

Goal for ‘01


Virtual keyboard

Virtual Keyboard


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