低功耗无线传感器网络节点的设计与实现  

Design and implementation of low-power wireless sensor network node

作　　者：潘琢金[1] 刘继磊[1] 罗振[1] 杨华[1] 

机构地区：[1]沈阳航空航天大学计算机学院,辽宁沈阳110136

出　　处：《计算机工程与设计》2015年第12期3225-3229,共5页Computer Engineering and Design

基　　金：航空科学基金项目(2014ZC54012);辽宁省自然科学基金项目(2013024002);辽宁省教育厅基金项目(L2013063)

摘　　要：为降低传感器网络节点的能耗,设计实现基于EFM32TG842微控制器和CC2520射频(RF)芯片的无线传感器网络节点。为进一步降低节点软件层能耗,将Contiki操作系统移植到节点硬件平台,设计实现低功耗应用进程。对节点不同运行模式的电流进行测量,检测节点的能耗。测量结果表明,该方案降低了节点的能量消耗,有效延长了节点工作时间。To save the power consumption on a wireless sensor network node, a design was proposed based on EFM32TG842 and CC2520 RF chips as the MCU and RF module respectively. To decrease the power consumption at OS and software level for fur- ther, Contiki operating system was reshaped and transplanted into the node, and low power dissipation application processes were programmed. To check the energy consumption of designed node, current was measured for different operation modes. The results show that this design can reduce the node energy consumption, and effectively extend the life time of the node.

关 键 词：无线传感器网络节点 低功耗 EFM32TG842 CC2520 Contiki 

分 类 号：TP386.1[自动化与计算机技术—计算机系统结构]