Research On Application Of Wireless Sensor Network And ZigBee

In the recent years, as the rapid development of MEMS, wireless communication network, embedded system, and the interaction of all kinds of new technologies, many new modes of information obtaintion and process come into being. Wireless sensor network (WSN) is one of them. WSN can be used to monitor the environments, the machines and even the people;hence "ubiquitous computing" will come true. WSN has wide application fields, so it has been paid high attention by the military, the academes, and the industrial from all over the world. Meanwhile, this provides many challenges in the academe foundations and technologies.This dissertation introduces the recent researches on WSN, and analyzes its key technologies: the setup of wireless communication network, the design and implementation of network nodes and the design steps of WSN, in an architecture view.By analyzing and comparing, ZigBee technoloty is adopted to setup wireless communication network. The topology of the network and hierarchical protocol stacks are designed. The embedded network nodes are designed and developed, and the hardware and software are implemented. An experimental WSN is deployed and the experimental data is collected and analyzed. Finally, a typical example of wireless sensor network, personnel identification and positioning system in mine, is presented.