无线传感器网络定位与信息采集系统的设计

Design of Localization and Information Acquisition System Based on Wireless Sensor Networks

简要介绍了传感器网络中常用的定位技术,讨论了应用CC2431实现基于接收的信号强度指示(RSSI)的分布式定位算法,描述了定位及信息采集系统搭建的过程,包括采用嵌入式技术构建传感器节点、基于ZigBee协议栈Z-Stack的应用开发及人机交互平台的设计,着重分析了定位过程中协议栈数据帧交互的流程。结果表明:在室内环境下,系统定位实时性强,可满足传感器数据在线监测的需求。

Common localization technologies were introduced briefly, and localization technology based on RSSI applied in CC2431 was focused on, Process of constructing localization and information acquisition system based on WSN was described, which included design of WSN node adopted embedded technology, application development based on ZigBee protocol stack Z-stack and design of human- computer interaction interface. Flow of data frame in protocol stack interacted in localization was analyzed emphatically. The results showed that the localization and information acquisition system could achieve real-time localization and meet the needs of monitoring of sensor data.