Research And Implementation Of ZigBee Network Based On Z-Stack

Wireless sensor network is a new generation of sensor network, with the concept of the"Internet of Things", it has a very broad prospect of application.Wireless sensor networksbecome domestic universities research focus of concern. ZigBee technology with its lowcomplexity, low cost,low power,large network capacity and other characteristics, becomewidely used in the field of wireless sensor network in mainstream wireless communicationtechnology. With the information of the acquisition and processing and transmissioncapacity,ZigBee wireless sensor network fusings the sensor technology and wirelesscommunication technology,which has broad application prospects in the smart home,industrial and agricultural monitoring, biomedical.This paper put forward to set up a ZigBee wireless network based on the Z-Stack, Fromthe introduction of the ZigBee technology, analyzes the standards of IEEE802.15.4andZigBee protocol specification, and described the related concepts of ZigBee wireless networkand networking principles. TI’s CC2430chip solutions for wireless communication nodes, Onthe basis of hardware platform, by a deep research Z-Stack protocol Stack working principleand networking process, and rewrite the upper-layer protocols, completed the ZigBee starnetwork and tree network networking. How to extend the network life cycle is a researchpoint of wireless network.Finally, put forward a kind of transmit the chip power regulationmethod based on RSSI instructions. Use CC2430chip characteristics, through the RSSI valuesetting distance interval to change chip transmission power. This method can effectivelyreduce the power consumption of the wireless nodes.By experiments, the ZigBee wireless network has good reliability and achieve theexpected effect, the network also provides a good matting for the follow-up practicalapplication and certain reference value to the research.