【摘要】 分析了煤矿监测无线传感器网络的网络特点及其对应的路由协议的基本要求,针对井下网络拓扑变化频繁的特点,提出一种基于位置信息和网络梯度的贪婪型路由算法。该路由算法很好地解决了节点如何走出空洞现象和如何选择最优下一跳路由节点两个关键问题,路由信息简单可维护性强,研究结果表明该算法下的网络具备很好鲁棒性和可扩展性,满足井下实时监测网络的应用需求。更多还原

【Abstract】 This paper analyzes the characteristics of wireless sensor networks for coal mine and the requirements of its routing protocols firstly.Aiming at the frequent changes of network topology,a greedy routing algorithm based on geographic information and hop gradient is proposed.With the proposed routing algorithm,two key problems that how to bypass the hole and how to decide the optimum routing nodes can be solved well,and the routing messages is simple and maintainable.The analytical results show that the network is featured by strong robustness and scalability,it is suitable to be applied to the real-time monitoring networks in coal mine.更多还原