WIRELESS SENSOR NETWORK
A wireless sensor network (WSN)
(sometimes called a wireless sensor and actor network [1] (WSAN)) are spatially
distributed autonomous sensors to monitor physical or environmental conditions,
such as temperature, sound, pressure, etc. and to cooperatively pass their data
through the network to a main location.
A wireless sensor network consists of three main components: nodes,
gateways, and software. The spatially distributed measurement nodes interface
with sensors to monitor assets or their environment. The acquired data
wirelessly transmits to the gateway, which can operate independently or connect
to a host system where you can collect, process, analyze, and present your
measurement data using software. Routers are a special type of measurement node
that you can use to extend WSN distance and reliability.
With the NI
wireless sensor network (WSN) platform, you easily can monitor your assets or
environment with reliable, battery-powered measurement nodes that offer
industrial ratings and local analysis and control capabilities. Each wireless
network can scale from tens to hundreds of nodes and seamlessly integrate with
existing wired measurement and control systems.
A sensor network consists of multiple detection
stations called sensor nodes, each of which is small, lightweight and portable.
Every sensor node is equipped with a transducer, microcomputer, transceiver and power source. The transducer generates electrical
signals based on sensed physical effects and phenomena. The microcomputer processes and stores the sensor output. The transceiver receives commands from
a central computer and transmits data to that computer. The power for each sensor
node is derived from a battery.
No comments:
Post a Comment