30 November 2004 Autonomous magnetic node for wireless sensor networks
Author Affiliations +
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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yacine Dalichaouch, Yacine Dalichaouch, Richard A. Shelby, Richard A. Shelby, Hoke S. Trammell, Hoke S. Trammell, Kevin Mathis, Kevin Mathis, } "Autonomous magnetic node for wireless sensor networks", Proc. SPIE 5611, Unmanned/Unattended Sensors and Sensor Networks, (30 November 2004); doi: 10.1117/12.582844; https://doi.org/10.1117/12.582844

Back to Top