摘要
为了实现粮仓数字化管理,采用嵌入式技术和无线射频技术设计节点,构建无线传感器网络,实现粮仓温湿度自动监测。采用分簇的拓扑结构部署全部传感器节点并构建整个网络,选用高性能的CC1101射频芯片和低功耗的微控制器,设计并实现传感器节点和汇聚节点;在研究MAC协议基础上,提出一种时间同步方法,有效地调度各传感器节点的休眠与工作,可靠地实现数据的传输;改进基于TDMA的MAC协议,设计了整个网络的通讯协议;最后对系统通信性能进行了测试,实验表明数据包到达率在99.8%以上,保证了系统的可靠性。
In order to achieve granary digital management,we use wireless sensor network technology to achieve granary temperature and humidity monitoring system.The topology of the cluster is used to deploy all the sensor nodes and build the whole network.The high performance CC1101 radio frequency chip and low power consumption micro-controller are selected to design and implement nodes.Based on the study of MAC protocol,time synchronization method to synchronize and schedule the dormancy and work of each sensor node to achieve reliable data transmission;We improve the TDMA-based MAC protocol,and design the entire network communication protocol.Finally the system communication performance and power consumption were tested,verified the reliability of the system put forward.
作者
李研
黄凤辰
严锡君
Li Yan;Huang Fengchen;Yan Xijun(College of Computer and Information Engineering, Hohai University, Nanjing 211109, China)
出处
《国外电子测量技术》
2018年第4期54-58,共5页
Foreign Electronic Measurement Technology
