基于无线传感器网络的土壤湿度监控系统

为提高水资源的利用效率，且针对传统土壤湿度监控系统难以布线、抗干扰性能差等缺点，设计了一种无线土壤湿度监控系统。传感器节点以CC430单片机为节点核心并辅有土壤湿度传感器等一些外部元件，多节点间应用SimpliciTI无线通信协议组成一个小型的射频网络。主控节点通过GPRS模块向数据监控中心上传传感器节点采集的湿度数据并管理灌溉控制模块，数据监控中心可向无线网络发送控制命令。实验结果显示，基于协议的该系统稳定性高、移植性强、易于扩充，本设计将无线传感器网络技术应用到农业生产中，提出了一种新型实用的方案。

Soil Humidity Monitoring System Based on Wireless Sensor Networks

In order to improve the utilization efficiency of water resources and overcome the disadvantages about the difficulty of wiring and the poor anti disturbance performance according to traditional soil humidity monitoring system,a wireless soil humidity monitoring system is designed.The CC430 microcontroller is used in the senser node as hardware control core,together with some peripherals such as soil water humidity sensor.SimpliciTI protocols are used to form a small RF network among multi nodes.The humidity data acquired from sensor nodes is uploaded by master node to data monitoring center through GPRS module,and the irrigation control module is managed.The control commands are sent to wireless networks from the data monitoring.The results show that the system based on the protocols is with high stability and portability,and easy to expand.A new practical proposal is put forward by applying wireless sensor networks (WSN) to agricultural production.