一种用于桥梁健康监测无线传感网络的路由协议

Routing protocol of the wireless sensor networks for bridge health monitoring

分析了现有无线路由协议不能直接应用于桥梁健康监测无线传感网络的原因,提出了具有针对性的路由协议。该路由协议针对采集模块位置固定的特点,采取了根据模块可靠度调节交换周期的邻居节点路由信息交换。针对路由安全性要求不高,同时也为了提高路由效率,提出了由可变阈值控制中间节点应答路由请求。为了充分利用路由发现的信息,采取了路由备份机制。该路由协议实现了有效的数据转发,适应了桥梁健康监测无线传感网络的应用环境。

By analyzing the reason that why the existing routing protocols cannot be applied to the wireless sensor networks for bridge health monitoring,a new routing protocol is proposed. Since the locations of the collecting modules are fixed,the proposed protocol exchanges the routing information between the neighbor nodes by adjusting the exchange cycle according to reliability of the modules. For the low routing security requirement,while to increase the routing efficient,the middle nodes replying the routing requirements with variable thresholds is introduced. In order to make full use of information in route discovering procedure,the backup routes mechanism is adopted. The proposed protocol can efficiently forward data and is suitable for the bridge health monitoring.