无线传感器网络节能技术的研究

The Research Of Energy Aware Technology In Wireless Sensor Networks

传感器节点是构建无线传感器网络的基本单元,对于大部分无线传感器网络,节点数目众多且靠电池供给能量,采用更换电池的方法来补充能量很不现实,因此低功耗传感器节点的研制,对于延长网络的生命周期具有非常重要的意义。本文分析了传感器网络的能耗特点,确定能量消耗的主要部分是无线通信。并主要从硬件方面进行节能设计,使系统在满足网络连通性的情况下使节点能耗降到最低。

Node is the basic unit in WSN. According to the WSN, the sensor nodes are battery driven and it is impractical to recharge the batteries for so many nodes. So the designing of low power consumption sensor nodes is very important for the lifecycle of the WSN. Energy consumption characteristic and nodes＇ energy saving method are introduced.