Abstract
ZigBee wireless technology is a new short-distance wireless communications technology, and it is a low-power low speed and low latency wireless standard. ZigBee has strong network capability and large network capacity and it can be widely used in consumer electronics,home and building automation, industrial controls ,medical sensor application and other fields. For its special feature,ZigBee is the best choice for wireless sensor network.ZigBee stack architecture is based on the standard Open Systems Interconnection(OSI) seven一layer mode.The IEEE802.15.4 standard defines the two lower layers: the physical (PHY) layer and the medium access control (MAC) sub-layer. The ZigBee Alliance builds on this foundation by providing the network (NWK) layer and the framework for the application layer.
First of all,the paper introduces the development and research significance of ZigBee,also lists some application examples of ZigBee and describes the development status of ZigBee in China and other countries. Then,the paper describes the functions of all layers and the interface of each layer shortly according to IEEE802.15.4 standard and ZigBee specification.
Finally,using the 2.4GHz Zigbee SoC RF card which is made by XI’AN HUAFAN Science and Technology company to do the point-to-point communication experiment(Light-Switch demonstration),using one module as the “Switch”,, and the other module as the “Light”, and press the “Switch” continually, the “Light” will be flashing alternately to achieve the control effect..
Keywords:CC2430,Wireless sensor network,IEEE802.15.4 Protoeols,ZigBee