基于Contiki OS的低功耗无线传感器网络节点设计  

Design of Low Power Node on Wireless Sensor Network Based on Contiki OS

作　　者：刘嘉宇[1] 高德云[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《计算机与现代化》2015年第3期122-126,共5页Computer and Modernization

基　　金：国家科技重大专项(2012ZX03005003)

摘　　要：无线传感器网络节点能量受限,在设计过程中必须优先考虑能耗问题。通过低功耗硬件选型,设计一款基于16位超低功耗处理器MSP430F5438A及IEEE802.15.4射频收发器AT86RF231的无线传感器网络节点。软件设计方面,使用Contiki操作系统,使节点系统平台摆脱了前后台或有限状态机的软件设计思想,可以使用模块化、进程化风格对节点进行编程。设计测试平台,进行多点环境信息采集实验并对节点功耗进行实际测试,验证节点的实用性及低功耗特性。Power efficiency should be the primary concern when designing wireless sensor network because nodes are energy constrained. Through low power hardware selection,a WSN node was proposed based on ultra-low power MCU MSP430F5438 A and IEEE 802. 15. 4 transceiver AT86RF231. The use of Contiki OS eliminated foreground / background software design pattern or finite state machine,and developers could use modularized and thread-like code style in software designing. Test platform was built to perform multi-point information gathering experiment and static power measurement. These tests show practical use and lowpower feature of the node.

关 键 词：无线传感器网络 低功耗 硬件设计 Contiki操作系统 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]