Title :
An autonomous 16 mm3 solar-powered node for distributed wireless sensor networks
Author :
Warneke, Brett A. ; Scott, Michael D. ; Leibowitz, Brian S. ; Zhou, Lixia ; Bellew, Colby L. ; Chediak, J.A. ; Kahn, Joseph M. ; Boser, Bernhard E. ; Pister, Kristofer S J
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
A 16 mm3 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 μm CMOS ASIC, a 2.6 mm2 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.
Keywords :
distributed sensors; intelligent sensors; microsensors; optical links; solar cell arrays; 0.25 micron; 3 MHz; ADC; CMOS ASIC; SOI solar cell array; Smart Dust; autonomous solar-powered node; bidirectional optical communication; distributed wireless sensor network; free-space optical link; integrated oscillator; micromachined four-quadrant corner-cube retroreflector; one-to-many network configuration; optical receiver; photosensor; Acoustic sensors; Application specific integrated circuits; Energy management; Intelligent sensors; Magnetic sensors; Optical fiber communication; Optical receivers; Optical sensors; Photovoltaic cells; Wireless sensor networks;
Conference_Titel :
Sensors, 2002. Proceedings of IEEE
Print_ISBN :
0-7803-7454-1
DOI :
10.1109/ICSENS.2002.1037346
