基于最小三角形算法的室内可见光三维定位方法  

Indoor visible light three-dimensional positioning method based on minimum triangle algorithm

作　　者：方智敬 陈媛[1] 王俊杰[1] 林星辰[1] FANG Zhijing;CHEN Yuan;WANG Junjie;LIN Xingchen(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《光通信技术》2023年第1期68-72,共5页Optical Communication Technology

基　　金：国家自然科学基金资助项目(批准号:62205336)资助。

摘　　要：为进一步提高室内可见光三维定位的精度,提出了一种基于最小三角形算法的室内可见光三维定位方法。该方法采用视距链路模型,由定位终端接收携带发光二极管位置信息的光强信号,利用最小三角形算法和接收信号强度指示方法来计算接收机在室内的三维位置信息,再引入加权质心算法降低光路受遮挡所造成的影响。仿真结果表明:在室内5 m×5 m×3 m的定位区域内,提出的定位方法平均定位误差约为4.35 cm,平均高度误差约为1.65 cm,定位精度优于传统的室内可见光三维定位方法。In order to further improve the accuracy of indoor visible light three-dimensional positioning,an indoor visible light three-dimensional positioning method based on minimum triangle algorithm is proposed.In this method,the line-of-sight link model is adopted,and the positioning terminal receives the light intensity signal carrying the light-emitting diode position information.The minimum triangle algorithm and the received signal strength indication method are used to calculate the three-dimensional position information of the receiver in the room,and then the weighted centroid algorithm is introduced to reduce the impact of optical path occlusion.The simulation results show that the average positioning error of the proposed positioning method is about 4.35 cm and the average height error is about 1.65 cm in the indoor positioning area of 5 m×5 m×3 m.The positioning accuracy is better than that of the traditional indoor visible light three-dimensional positioning method.

关 键 词：可见光 室内三维定位 最小三角形算法 质心加权算法 

分 类 号：TN929.1[电子电信—通信与信息系统]