CAJ | 학술논문

蓝牙技术具有低成本、低覆盖范围、高速率和方便组织微微网等特点,ZigBee技术具有低功耗,低复杂性、低成本、长距离组网等特点,构建两者结合的低成本普适网络环境,提出基于用户属性的多用户接入算法和带宽分配算法.硬件体系由ARM、蓝牙、ZigBee、传感器等主要模块构成,软件环境为Linux操作系统.系统运行状态平稳,蓝牙和ZigBee信道利用率高,能够很好地满足用户对数据的下载需求,而且应用多用户接入算法使系统各项指标均好于系统采用平均分配算法.
람아기술구유저성본、저복개범위、고속솔화방편조직미미망등특점,ZigBee기술구유저공모,저복잡성、저성본、장거리조망등특점,구건량자결합적저성본보괄망락배경,제출기우용호속성적다용호접입산법화대관분배산법.경건체계유ARM、람아、ZigBee、전감기등주요모괴구성,연건배경위Linux조작계통.계통운행상태평은,람아화ZigBee신도이용솔고,능구흔호지만족용호대수거적하재수구,이차응용다용호접입산법사계통각항지표균호우계통채용평균분배산법.
Bluetooth technology has advantages of low-cost,low-covernge,high-speed and convenience to build piconet,while Zig-Bee technology has advantages of low-coot,low-complexity and high-capability of building long-distance networks.This paper tries to fully utilize these complimentary features,and design a low-cost pervasive network on these two technologies.Moreover,this pa-per proposes a user-property-based access algorithm and a priority-based bandwidth allocation algorithm.The hardware of this system includes ARM,bluetooth,ZigBee and sensor modules,and the operation is open-source Linux.The access and bandwidth allocation algorithms exhibit better performance than average-allocation algorithm,in term of efficiency and service time.