Research On Protocol Of Wireless Sensor Network Based On ZigBee And Design Implement

With the development and integration of sensor, microelectronic technology, embeddedcalculation, modern network and wireless communications technology, and distributed informationprocessing, WSN(Wireless Sensor Network) based on ZigBee has been continually used in manyfields of application such as industrial auto-control, military affairs, medical treatment,environmental monitoring, consuming electronic equipment, smart home and internet of things.ZigBee is a wireless network technology with emerging short-range, low rate, low-power, lowcost. As it has a strong self-organization, self-healing capacity and high security, it is suitable forWSN. On the base of comprehensive summary of ZigBee technology on WSN and systematicalanalysis of ZigBee protocol system, this thesis presents a design idea of WSN based on ZigBee forenvironmental monitoring system of remote machine room to make up for lack of some remotecable monitoring.This thesis introduces the system structure and network protocol for WSN, characteristics ofZigBee technology and WSN system structure based on ZigBee, including equipment classification,topological structure, node structure and network construction. And then, it analyzes the ZigBeeprotocol system and elaborates the functions and implementation processes of physical layer, MAClayer, network layer and application layer and describes a format of data frame. Also, a set ofremote machine room environment monitoring system based on ZigBee WSN is studied anddisigned, considering, the design background, requirements and functions, principle of operation,and configuration of this system. And the realizations of the syetem including hardware andsoftware parts are deeply studied. The proposed methods of this thesis provide significant practicalvalue to the application of WSN based on ZigBee.