Research Of Wireless Sensor Network

Wireless Sensor Network is a kind of self-organizing network, which is composed of many small nodes wired by wireless communication technologies. The Wireless Sensor Network can pick up data, transform data and process data. It is a new field of information technology.This thesis is based of the key technologies of Smart Wireless Sensor Network. According to characteristics of the Wireless Sensor Network, which are scarce energy source, limited resources and real time processing, the goal of our work is to prolong lifecycle of Wireless Sensor Network. We discuss and implement OS and route protocol for wireless sensor network.Firstly, This thesis introduces the foreground of applications and things of the research, system architecture and characteristics of Wireless Sensor Network.Secondly, the aims are to organize and manage effectively hardware resources, and to meet different functions and applications of Wireless Sensor Network. It analyzes single-task operating system TinyOS in paper. Aiming at defects of TinyOS, multitask operating system MiniOS for Wireless Sensor Network is designed and implemented in paper.Thirdly, it analyzes and contrasts current existing network route protocols. Traditional route protocols are designed for general data transmission. Because Wireless Sensor Network is a network for special purpose, from the view of the characteristic of Wireless Sensor Network data flow, a content-based protocol (CBP) of Wireless Sensor Network is designed and implemented.