What Is a Bluetooth Based Smart Sensor Network?
The underlying principle of a smart sensor network is that a number of independent sensors collect information, make a decision based upon it and relay that decision, wirelessly, to a central point, where it forms the basis for further decision making.
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Functions
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Smart sensor networks can be used for collecting information in a variety of circumstances, but their function usually includes determining the value of a parameter, such as temperature or atmospheric pressure; detecting events, such as traffic movement; and classifying and tracking detected objects.
Sensor Types
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The sensors in a smart sensor network can be video cameras, microphones, seismic or infrared sensors or a combination depending on the precise nature of the network. Sensors are arranged in clusters, and each sensor must be equipped with sufficient processing power to make a decision and must be capable of communicating with other sensors in a cluster.
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Bluetooth
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Bluetooth--named after the 10th century Danish king Harald Bluetooth--is the wireless communications technology on which a Bluetooth smart sensor network relies. Bluetooth uses radio frequency waves rather than cables for transferring information between devices. It requires no line-of-sight between the sending and receiving devices but is limited to a range of around 30 feet.
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References
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