Abstract:
A wireless sensor network will allow communication between sensor nodes over a certain area. The network consists of a base station and a number of sensor nodes. These nodes communicate with each other wirelessly. Each node consists of four elements: a sensor, microprocessor, radio, and power supply. Applications of wireless sensor networks include military deployment, surveillance, weather and seismic monitoring, and tracking.
We will design a wireless sensor module based on work done at the University of California, Berkeley. Our design will focus on improving the current module by adding a channel coding feature, optimizing bandwidth, and improving power efficiency. The channel coding feature will enable error detection and correction of transmitted data. By placing more processing responsibility on the sensor, the amount of transmitted data is reduced, thus maximizing power efficiency.
Our design will focus on interfacing a microprocessor with a radio transceiver and providing power to both while maintaining efficiency. Sensor boards may be attached to the module through a standard 51-pin interface. Each module includes an operating system (TinyOS) through which software will manage data transfer. Once initialized, the network will be self-organizing. We will present a plan to reduce the module to the size of a quarter.
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Team