An autonomous 16 mm/sup 3/solar-powered node for distributed wireless sensor networks
BA Warneke, MD Scott, BS Leibowitz… - SENSORS, 2002 …, 2002 - ieeexplore.ieee.org
SENSORS, 2002 IEEE, 2002•ieeexplore.ieee.org
A 16 mm/sup 3/autonomous solar-powered sensor node with bidirectional optical
communication for distributed sensor networks has been demonstrated. The device digitizes
integrated sensor signals and transmits/receives data over a free-space optical link. The
system consists of three die-a 0.25/spl mu/m CMOS ASIC, a 2.6 mm/sup 2/SOI solar cell
array, and a micromachined four-quadrant corner-cube retroreflector (CCR), allowing it to be
used in a one-to-many network configuration. The CMOS ASIC includes a photosensor …
communication for distributed sensor networks has been demonstrated. The device digitizes
integrated sensor signals and transmits/receives data over a free-space optical link. The
system consists of three die-a 0.25/spl mu/m CMOS ASIC, a 2.6 mm/sup 2/SOI solar cell
array, and a micromachined four-quadrant corner-cube retroreflector (CCR), allowing it to be
used in a one-to-many network configuration. The CMOS ASIC includes a photosensor …
A 16 mm/sup 3/ autonomous solar-powered sensor node with bidirectional optical communication for distributed sensor networks has been demonstrated. The device digitizes integrated sensor signals and transmits/receives data over a free-space optical link. The system consists of three die - a 0.25 /spl mu/m CMOS ASIC, a 2.6 mm/sup 2/ SOI solar cell array, and a micromachined four-quadrant corner-cube retroreflector (CCR), allowing it to be used in a one-to-many network configuration. The CMOS ASIC includes a photosensor integrated 3 MHz oscillator, 69 pJ/bit optical receiver and 31 pJ/sample ADC.
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