Smart Dust

ABSTRACT

Advances in hardware technology has enabled very compact, autonomous and mobile nodes each having one or more sensors, computation and communication capabilities ,and a power supply. The Smart Dust project is exploring whether an autonomous sensing, computing, and communication system can be packed into a cubic-millimeter mote to form the basis of integrated, massively distributed sensor networks. It focuses on reduction of power consumption, size and cost. To build these small sensors, processors, communication devices, and power supply , designers have used the MEMS (Micro electro mechanical Systems) technology.

Smart Dust nodes otherwise known as “motes” are usually of the size of a grain of sand and each mote consists of :
1. sensors
2. transmitter & receiver enabling bidirectional wireless communication.
3. processors and control circuitory
4. power supply unit

Using smart dust nodes, the energy to acquire and process a sample and then transmit some data about it could be as small as a few nanoJoules.

These dust motes enable a lot of applications, because at these small dimensions ,these motes can be scattered from aircraft for battle field monitoring or can be stirred into house paint to create the ultimate home sensor network.

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