基于WSN的粮情监测系统LEACH改进协议研究与应用

Application and Improvement Research of LEACH for Granary Monitoring System Based on WSN

首先介绍了基于WSN的粮情仓储监测系统的结构,针对粮仓温度监控的特殊环境,分析了经典LEACHE协议中簇头节点能量消耗过大和簇头节点与网关通信距离长的不足,提出以节点综合信息作为簇头节点选取的标准,同时通过限制簇内节点数目,在传输中结合簇内单跳、簇间与网关单跳与多跳结合的数据传输方式;最后将提出的改进算法在布设50个节点的粮仓中运行半年,经测量回收节点电池电压,90%节点均有效减少消耗,延长网络整体生存时间,较好地满足实际应用要求,为大型粮库设施现代化管理奠定了基础。

This paper introduces the study of network temperature monitoring system Based on WSN. Aimed at the problems of saving --energy for wireless sensor network, the classical clustering LEACH protocol is analyzed, based on which an improved clustering protocol is proposed against deficiencies of LEACH. The improved protocol limits the number of nodes within the cluster, the transmission use the single hop or multi--bop. Finally, the proposed improved algorithm for the practical application of proven improved algorithm can effectively re- duce the overall network energy consumption of cluster head, thus extending the network overall survival time, better satisfy the require- ments of practical applications for large grain storage facilities. For large grain storage facilities, laid the foundation for modern management.