The Zigbee Technology Applied Research In Wireless Sensor Networks

Wireless sensor network is a kind of self-organization wireless network which taking the data as center. The node in network is intensive, huge quantity and covering a large area, and the network topology is dynamic, and the network was self-organization and self-modulation. The node has some characteristics such as low cost, small volume, limited energy and limited computing, limited memory, limited communication. The energy of node is the most decisive factor of designing node.Now the research on wireless sensor network concentrates primarily in the protocol of MAC, routing algorithms and integration algorithms. Each layer's function defined of the protocol stack, data frame form, the uniform interface definition between difference layers and each layer's regular management are considered fewer. The appearance of IEEE802. 15. 4/ZigBee protocol which of low cost, low power consumption and simple application offers the international standard for wireless sensor network and application based on micro-control. At the same time it offers the chance for the applications and the development of related industries. IEEE802. 15. 4/ZigBee protocol is constituted of IEEE802.15.4's PHY and MAC layer, ZigBee network layer and application layer. Its outstanding characteristics are the system supporting low cost operation, easily realization of the dependable data, short distance operation, the very low power consumption and the different layers safety etc.In the paper, we analyze the IEEE802.15.4/ZigBee protocol, and propose an intelligent control platform for wireless sensor network based on IEEE8 02.15.4/Zigbee protocol. We use the IEEE8 02.15.4/Zigbee protocol as the wireless network protocol of the sensor network, which can make the structure of network more flexible and robust.The paper includes the following research: develop and relize a reliable, robust and low power dissipation Zigbee system; on the system, data and control information of temperature sensor can be transmitted by wireless communication.