【作者】 饶頔； 杜尚丰； 李道亮； 马道坤；

【Author】 Rao Di,Du Shangfeng,Li Daoliang,Ma Daokun(China agricultural university information and electrical engineering,Beijing 100083,China)

【机构】 中国农业大学信息与电气工程学院；

【摘要】 无线传感器网络技术在农业上得到广泛应用,传感器节点能量有限,但是农业环境对无线传感器网络的能耗要求更高。如何最大限度地利用有限的能量,延长网络节点的生命周期成为了研究农业无线传感器网络的关键问题。本文从优化无线传感器网络拓扑结构及优化节点同步/休眠机制入手,研究如何在不影响网络通讯质量的前提下,实现网络同步及休眠。提出了一种网络拓扑结构及节点时间同步、休眠方式,在JENIC5139平台进行了试验。结果表明,该网络拓扑结构及休眠方式,大大延长了农用无线传感器网络的生命周期。更多还原

【Abstract】 Wireless sensor network technology is widely applied in agriculture,sensor node energy is limited,but the energy consumption of agricultural environment on wireless sensor network is high.How to maximize the use of limited energy,prolong the network nodes in the life cycle of a wireless sensor network become the key problem of agricultural wireless sensor network.This paper,from side of the optimization of wireless sensor network topology structure and optimizing node synchronous/dormancy mechanism,to study how to no impact on the network communication and the respect of the quality of the network synchronization and dormancy.Puts forward a network topology structure and node time synchronization,dormancy way,JENIC5139 platform in the test.The results show that the network topology structure and dormancy way,greatly extend the farm of wireless sensor network life cycle.更多还原