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针对农田灌区范围广、数据量大和实时传输难的特点,设计了一种基于无线传感器网络的农田自动节水灌溉系统;综合运用无线传感器智能信息处理技术和无线数据通信技术,全面提升系统的自动化与监测水平。该系统采用星型拓扑结构组网,通过在监测区域部署ZigBee网络节点,将监测数据汇集到嵌入式测控系统,实现统一的数据管理和网络路由监测功能;以微处理器芯片为核心控制器件,由无线传感器网络节点实时采集和处理土壤温湿度数据,并将其发送到接收端,在接收端对数据进行存储和显示,实时监测土壤温湿变化,实现节水灌溉的自动化控制及水资源的高效利用。试验证明,该系统稳定性好,数据传输可靠性高,通过增加数据采集频率,减少了数据丢包率,使用灵活,适用于不便直接连线的一般监测场合应用。
Aimed at the characteristics of farmland irrigation area with a wide range of data, large amount of data and difficult real-time transmission, a farmland automatic water-saving irrigation system based on wireless sensor network is designed. By comprehensively using wireless sensor intelligent information processing technology and wireless data communication technology, With monitoring level. The system uses a star topology network, through the deployment of ZigBee network nodes in the monitoring area, the monitoring data collected to the embedded monitoring and control system to achieve a unified data management and network routing monitoring; microprocessor chip as the core control device, Wireless sensor network node real-time collection and processing of soil temperature and humidity data, and send it to the receiving end, the receiving end of the data storage and display, real-time monitoring of soil temperature and humidity changes, to achieve automatic control of water-saving irrigation and water resources Efficient use of. The test proves that the system has good stability and high reliability of data transmission. By increasing the frequency of data collection, the data loss rate is reduced, and the system is flexible in use. The system is suitable for general occasions where direct connection is inconvenient.