基于无线传感网的土壤水分实时监测系统的设计

根据农田环境信息采集和作物节水灌溉决策的需求,设计了农田基于无线传感网的土壤水分实时监测系统。该系统基于ZigBee无线通信协议设计,克服了有线传感器网络的局限性,避免了其他无线通信技术的高功耗的缺点,节点成本低、网络容量大、生存周期长,其采集的数据可为作物节水灌溉提供实时决策依据。分析了系统的总体设计框架、传感器节点的硬件结构、应用软件主要模块功能。系统的设计为精准农业中的节水灌溉决策研究提供了有效工具。

Design of the Real-time Monitoring System of Soil Moisture Based on Wireless Sensor Network

An in-field soil moisture real-time monitoring system was developed based on wireless sensor network according to the requirements of farmlands information collection and water-saving irrigation.Based on the ZigBee protocol,the system surmounts the defects of wired sensor network and avoids the high-energy cost of other wireless technology.The node is low-cost with large network capability and long lifetime.The collected data by the system provides basis for the decision-making of water-saving irrigation.In this paper,the overall design framework,the hardware structure of sensor nodes and the main module function of software of this system were introduced,the system may provide an effective tool for the decision-making of water-saving irrigation in precision agriculture.