Aiming at the wasting water resources problem in agricultural irrigation, the wireless sensor network system used for smart agriculture irrigation has been designed. In this system, the entire network is refined into multiple sub-networks by using the idea of clustering routing in PEGASIS protocol, each network is composed of child nodes, aggregation nodes and master node, communication among nodes use TDM A protocol, the interconnection and networking are based on classification of the power consumption level. The node design introduces single chip machine AT89S52, and RF chip CC1101 hardware platforms. The system implements various functions including data acquisition, sensor networking, wireless data transmission, network data management and monitoring, etc. The results of practical test verify the feasibility and effectiveness of the design, and indicate that it provides the platform for intelligent and precise irrigation.%针对农业灌溉中的水资源浪费问题,设计了用于农业智能灌溉的无线传感器网络系统.该系统采用PEGASIS协议中的分群路由思想将整个网络细化为多个子网路.各网络由子节点、汇聚节点和主节点构成,节点间通信采用时分多址( TDMA)通信协议,使用功耗等级划分方式进行联网和组网.节点设计引入了单片机AT89S52、RF芯片CC1101等硬件平台.系统实现了数据采集、传感器组网、数据无线传输、网络数据管理和监控等功能,实测结果验证了该设计的可行性和有效性,它能为智能精准灌溉提供平台.
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