基于新分簇路由算法的温室监控网络节能研究

Research on greenhouse monitoring network energy-saving based on new clustering routing algorithm

针对设施农业发展需求,根据温室结构特性,从能量高效与节点可信度方面出发,提出了一种新的3层无线传感器网络分簇路由算法。该算法分别在簇头节点的选择、簇区的形成和簇间路由通信方式上进行了改进,在簇的形成过程中同时考虑了节点的能量与位置信息,提出了新的簇头选择权值参数,并在选出的第1层簇头节点的基础上,进行阈值划分,均衡了网络的能耗与通信负载。仿真与实际应用结果表明,该算法在节点的能量消耗、网络通信流量等方面优于传统分簇路由协议,应用于温室监控项目中时,新的组网协议体积小,节省能量,均衡了各监控传感器节点的能耗负担,获得较好的拓扑结构,延长了1.5倍网络生命周期。

According to agricultural development, greenhouse structural characteristics, and energy-efficiency and node credibility requirements, a new three-tier wireless sensor networks（WSNs） clustering routing algorithm is proposed. The algorithm achieves the improvements in the cluster head node selection, the cluster region formation and inter-cluster routing communication. In the cluster formation process, the energy and position information of the nodes are considered; and a new cluster head selection weighting parameter is suggested. After the first layer of the cluster head nodes is selected, the threshold dividing is performed; and the energy consumption and traffic load of the network are balanced. Simulation and practical application results show that the algorithm is superior to traditional clustering routing protocol in terms of the node energy consumption and network traffic. When the algorithm is applied to greenhouse control project, better topology and 1.5 times longer network life cycle are achieved because of the small size of the networking protocol, the energy saving and the energy consumption balance of the monitoring sensor nodes.