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Mote update

Mote update. K. Pister. Goals. Make lots of autonomous sensor nodes Get CS people excited about using them Design new and exciting hardware. N. W. E. S. 2 Axis Magnetic Sensor. 2 Axis Accelerometer. Light Intensity Sensor. Humidity Sensor. Pressure Sensor. Temperature Sensor.

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Mote update

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  1. Mote update K. Pister

  2. Goals • Make lots of autonomous sensor nodes • Get CS people excited about using them • Design new and exciting hardware

  3. 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%

  4. COTS Dust - Distributed Algorithms • 1”, $100 Sensor nodes are easy • algorithms?

  5. COTS Dust - Optical Motes Laser mote • 650nm laser pointer • 2 day life full duty CCR mote • 4 corner cubes • 40% hemisphere

  6. CCR Interogator

  7. Video Semaphore Decoding Diverged beam @ 300m Shadow or full sunlight San Francisco (Coit Tower) to Berkeley (Cory Hall)

  8. 1 Mbps CMOS imaging receiver Put an asynchronous receiver at every pixel 0.25 um CMOS in fab Funded by DARPA/MTO/STAB

  9. 24” Bat 40 mph top speed 30 minute loiter autopilot: pressure sensor, gyros, XLs 2 planes, 1 ground station, in 1 suitcase spyplanes.com

  10. Marine LOE 4 3 MAVs participated, 1 flew 7 sorties on station in minutes

  11. 300 um Micro Mote - First Attempt

  12. AR coated dome lens Steering Mirror laser CMOS ASIC 2D beam scanning

  13. 6-bit DAC Driving Scanning Mirror • Open loop control • Insensitive to disturbance • Potentially low power

  14. ~8mm3 laser scanner Two 4-bit mechanical DACs control mirror scan angles. ~6 degrees azimuth, 3 elevation > 1Mbps IRDA on steroids Virtual window

  15. Virtual Keyboard Interfaces for people with Disabilities?

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