基于Wi-Fi指纹和LED光学特性的室内定位系统  

Indoor Positioning System Based on Wi-Fi Fingerprinting and LED Optical Characteristics

作　　者：郑春达 刘银华 ZHENG Chunda;LIU Yinhua(School of Automation,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学自动化学院,青岛266071

出　　处：《自动化与仪表》2024年第5期152-156,共5页Automation & Instrumentation

基　　金：国家重点研发项目(20YFB1313604)。

摘　　要：该文提出了一种基于Wi-Fi指纹和LED光学特性的室内定位系统,将Wi-Fi指纹和光学特性的色温和频率信息进行组合定位。使用光学特性提高Wi-Fi指纹定位的精准度。将需要定位的区域划分为多个相同的小区域,并在整个区域上构建稀疏的Wi-Fi指纹地图。通过Wi-Fi指纹定位确定目标所在的小区域。在小区域内通过光学信息的光照强度和频率信息进行精准定位。最后,通过设计实验和仿真结果表明,在室内环境中,该系统实现了平均误差为0.97 dm的定位,能够有效地定位。This paper introduces an indoor positioning system based on Wi-Fi fingerprinting and LED optical characteristics,integrating the color temperature and frequency information of both Wi-Fi fingerprinting and optical features for combined positioning.Optical characteristics are employed to enhance the accuracy of Wi-Fi fingerprinting positioning.The area that requires positioning is divided into multiple identical sub-areas,and a sparse Wi-Fi fingerprint map is established across the entire region.The specific sub-area where the target is located is identified using Wi-Fi fingerprint positioning.Precise positioning within the sub-area is achieved using optical information related to light intensity and frequency.In conclusion,through designed experiments and simulation results,it shown that in indoor settings,this system achieves a positioning with an average error of 0.97 dm,demonstrating its effective positioning capability.

关 键 词：Wi-Fi指纹 LED 室内定位 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]