Smart dust mote forerunners
- 13 November 2002
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
We have demonstrated a 138mm3 autonomous uni-direc- tional sensing/communication mote that optically transmits a measure of the ambient light level. We have also developed a 63m3 autonomous bi-directional communication mote that receives an optical signal, generates a pseudorandom sequence based on this signal to emulate sensor data, then optically trans- mits the result, although it has only been demonstrated in a bench configuration at this time. The latter system contains a micromachined comer cube reflector, a 0.078mm3 CMOS chip that consumes 75pW, and a Mn-Ti-Li cell, but we have also demonstrated operation from an -2mm2 solar cell. These motes allow us to demonstrate necessary concepts of Smart Dust such as optical data transmission, data processing, energy manage- ment, miniaturization, and system integration.Keywords
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