基于RFID室内可视化定位系统设计与实现

Design and implementation of RFID-based indoor visual positioning system

目前,RFID室内定位数据的可视化方法简单,视觉效果不理想。为了解决这一问题,提出了一种新型的RFID室内定位系统,即在地理信息系统上执行RFID室内定位算法,并给出了兼顾实时性与定位精度的室内定位算法。文中定位所用装置与传统的RFID阅读器相比,无需调节天线的发射功率。在定位过程中,与传统的基于RSSI信号强度的LandMarc定位算法及其改进Vire算法相比,降低了器件的复杂度,将阅读器模块最小化,提高了定位的实时性,有效解决了室内定位的精度与实时性问题。基于该方法,本文设计并实现了一个基于RFID室内可视化定位系统,并验证了算法的有效性。

At present,RFID indoor positioning data visualization methods are simple and the visual effect is not ideal.To solve this problem,an RFID indoor localization algorithm is proposed for a geographic information system.Furthermore,the indoor positioning algorithm balances the tradeoff between real-time operation and positioning accuracy.Compared with the conventional LandMarc algorithm and its improved Vire algorithm,the complexity of the equipment is simplified and the running time is reduced in the positioning process.Experiment results indicate that the proposed system with RFID-based indoor visual positioning scheme can work efficiently.