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A '''wireless sensor network''' (WSN) is a [[network]] made of numerous small independent [[sensor]] nodes. The sensor nodes, typically the size of a 35 mm film canister, are self-contained units consisting of a [[battery (electricity)|battery]], radio, sensors, and a minimal amount of on-board computing power. The nodes self-organize their networks, rather than having a pre-programmed [[network topology]]. Because of the limited electrical power available, nodes are built with power conservation in mind, and generally spend large amounts of time in a low-power "sleep" mode.
The [[University of California, Berkeley]] is a major center of research and development into wireless sensor networks, and has used them to study [[microclimate]] variations in individual [[redwood]] trees.
== See also ==
* [[TinyOS]]
* [[Smartdust]]
== External link ==
*[http://www.computer.org/computer/homepage/0804/GEI/ Overview of wireless sensor networks from the IEEE Computer Society].
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Revision as of 17:54, 17 October 2004
A wireless sensor network (WSN) is a network made of numerous small independent sensor nodes. The sensor nodes, typically the size of a 35 mm film canister, are self-contained units consisting of a battery, radio, sensors, and a minimal amount of on-board computing power. The nodes self-organize their networks, rather than having a pre-programmed network topology. Because of the limited electrical power available, nodes are built with power conservation in mind, and generally spend large amounts of time in a low-power "sleep" mode.
The University of California, Berkeley is a major center of research and development into wireless sensor networks, and has used them to study microclimate variations in individual redwood trees.