无线传感器网络低功耗设计综述

无线传感器网络(W SN)综合了传感器技术、嵌入式技术、分布式信息处理技术和网络通信技术,能够协作地实时监测、感知和采集各种环境对象的信息,并将信息传递给系统用户主机进行分析、处理。W SN中的节点,具有感知和路由的功能,在实际的应用中,功耗是影响节点工作寿命的关键因素。为实现一种低功耗的W SN,可以从W SN的体系结构、传感器节点以及网络各层次通信协议等角度去设计实现。在该领域还存在一些亟待解决的问题。

Overview of low-power design in wireless sensor networks

The technologies of sensor,embedded chip,distributed information processing and networks communication are integrated into wireless sensor networks(WSN) which can monitor,perceive and gather real-time various information of the environment collaboratively,and the signals is sent to the host computer for processing.The nodes of WSN serve the functions of perceiving and routing.Power consomption is the key factor affecting the longevit of nodes in practice.A kind of low-power consumption WSN can be designed and realized from network system architecture,sensor nodes,and multi-layered communication protocols.However,some urgent problems remain in this field.