CAJ | 학술논문

本文从BitCloud协议栈的应用特点、ATmega128RF单片机的射频特性、ZigBee网络结构、滤波算法、位置估算方法和网络承载能力等方面，详细描述了室内定位系统的设计与实现的主要内容和关键技术，并实验证明了实际效果。在位置估算方法方面提出了平滑滤波和极大似然估计法结合的有效的位置估算方式，成功解决在使用RSSI定位算法时，难以得到稳定信号强度值和估算误差大等问题。试验结果表明，该系统中的采样稳定性优于普通RSSI算法，定位精度较高。
본문종BitCloud협의잔적응용특점、ATmega128RF단편궤적사빈특성、ZigBee망락결구、려파산법、위치고산방법화망락승재능력등방면，상세묘술료실내정위계통적설계여실현적주요내용화관건기술，병실험증명료실제효과。재위치고산방법방면제출료평활려파화겁대사연고계법결합적유효적위치고산방식，성공해결재사용RSSI정위산법시，난이득도은정신호강도치화고산오차대등문제。시험결과표명，해계통중적채양은정성우우보통RSSI산법，정위정도교고。
Base on the application characteristics of BitCloud protocol stack, ATmega128RF microcontroller RF characteristics, ZigBee network structure, filtering algorithms, and position estimation methods, described in detail the main content of indoor positioning systems and the implementation of key technologies. In the position estimation methods proposed smoothing filter, combined with maximum likelihood estimation method to an effective way to estimate the position. Experimental results show that the algorithm is more stable than ordinary RSSI algorithms, and high positioning accuracy.