ABSTRACT
A wireless sensor network (WSN) is a group of specialized transducers with a communications infrastructure for monitoring and recording conditions at diverse locations. The commonly monitored parameters are temperature, humidity, pressure, wind direction and speed, illumination intensity, vibration intensity, sound intensity, power-line voltage, chemical concentrations, pollutant levels and vital body functions. A sensor network consists of multiple detection stations called sensor nodes, each of which is small, lightweight and portable. Wireless sensor network refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment and organizing the collected data at a central location. Wireless sensor networks measure environmental conditions such as temperature, sound, pollution levels, humidity, wind and so on. A WSN has a processor, a radio interface, an analog-to-digital converter, sensors, memory, and a power supply. The processor provides the mote management functions and performs data processing.
