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Proceedings Paper

Autonomous magnetic node for wireless sensor networks
Author(s): Yacine Dalichaouch; Richard A. Shelby; Hoke S. Trammell; Kevin Mathis
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Paper Abstract

Quantum Magnetics has developed an autonomous battery-powered magnetic sensor node for distributed wireless sensor networks. The device digitizes the sensor output signals and transmits data over an RF link using a ZigBee 802.15.4 protocol. The prototype node incorporates Magneto-Resistive (MR) chips configured to measure all three components of the magnetic field, a logic device, analog-to-digital converters, a two-axis tilt sensor, a wireless transceiver, and a set of batteries. For use in outdoor environments, the sensor node is also GPS-ready. At present, the unit measures approximately 4 inches on a side, with about 40% of the volume occupied by the batteries. Using battery power, the node can operate for about 10 hours in a continuous mode and up to 40 hours with a 10% duty cycle. Efforts are underway to develop the next-generation magnetic node with significant reduction in size and part count.

Paper Details

Date Published: 30 November 2004
PDF: 8 pages
Proc. SPIE 5611, Unmanned/Unattended Sensors and Sensor Networks, (30 November 2004); doi: 10.1117/12.582844
Show Author Affiliations
Yacine Dalichaouch, Quantum Magnetics, Inc. (United States)
Richard A. Shelby, Quantum Magnetics, Inc. (United States)
Hoke S. Trammell, Quantum Magnetics, Inc. (United States)
Kevin Mathis, Quantum Magnetics, Inc. (United States)

Published in SPIE Proceedings Vol. 5611:
Unmanned/Unattended Sensors and Sensor Networks
Edward M. Carapezza, Editor(s)

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