Wireless sensor networks are changing the way information is gathered, increasing the amount and accessibility of data about the physical world. The cost of deploying a wired sensor network is often 10 to 100 times the cost of the sensor. According to Joy Weiss, president of the Dust Networks Product Group at Linear Technology Corp, the real value of WSNs is that you can put a sensor anywhere-not just where power or communications wires are already conveniently located, but wherever you want to take a measurement or add a control point to a system.
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