基于ZigBeeCC2430的土壤含水率监测系统设计

针对农田土壤环境参数大滞后及大惯性的特点,基于低功耗ZigBee CC2430无线通信技术,设计了土壤含水率监测系统。通过运用无线传感器智能信息处理技术及数据通信技术,使得监测系统的自动化与监测水平得到提升。该系统采用星型拓扑结构组网,通过在监测区域部署网络节点,将监测数据汇集到监测中心,实现统一的数据管理和Zigbee网络的路由监测功能。给出了系统硬件和软件实现方法,包括无线传感器节点设计、数据采集、传输及通信等模块的实现原理。遵循模块化设计思想,传感器和功能模块可组合配置,通用性强。对于农田土壤含水率的监测实验结果表明,该系统性能稳定,能够实现数据采集、传输及显示,可广泛应用于各领域的环境参数自动监测。

Design of Soil Water Conten Monitoring System Based on ZigBee CC2430

Focused on soil information of large dead-time and inertia,in this paper,the soil water content monitoring system of low-powerwireless communication technology based on ZigBee CC2430 was designed.It can improve the syetem capability of monitoring and automation.The collection part based on single chip microcomputer digitalizes the signal from the sensor and sends it out using wireless digital transmission technology.By placing network nodes in monitoring area,the system collects monitoring information in monitoring center system to realize unified data management and monitoring function of ZigBee network.The realization of hardware and software is presented,including design of wireless nodes and how to program the data transmission and communications.Followed the design concepts of modularization,sensors and functional modules could be combined configuration,thus system was versatility.Experimental result for soil water content implies that the performance of this system is quite stable and could bewidely used for automatic monitoring in other environment places.