摘要
为提高室内定位的精度,设计了一种基于粒子群优化(Particle Swarm Optimization,PSO)的单LED室内定位系统。该定位系统不会产生光源之间的干扰,而且较易实现。系统采用单LED作为光源,接收装置由四个光电传感器组成。将待测点置于接收机中心,通过光照度值得到光源与相应光电传感器的距离,反向运用三边定位法,得到待测点的位置坐标。为进一步提高定位精度,采用多参数粒子群算法,对定位坐标优化。实验结果表明:该算法的定位精度可以达到13.67 cm,能够满足大多数室内定位的需要。
In order to improve the accuracy of indoor positioning,a single LED indoor positioning system based on particle swarm optimization(PSO)was designed.This positioning system was unable to produce interference between light sources and was easy to be realized.In this system,single LED was adopted as light source,and the receiver was composed by four photoelectric sensors,The measuring point was located in the center of the receiver,the distances between LED and the four photoelectric sensors were obtained through illuminance,and the position coordinate of the measured point was obtained by using the reverse trilateral localization method.In order to further improve the positioning accuracy,multi-parameter particle swarm optimization algorithm was used to optimize the positioning coordinates.The experimental results show that the positioning accuracy of this algorithm can reach 13.67 cm,which can meet the needs of most indoor positioning.
作者
史明泉
崔丽珍
秦岭
李彬
SHI Mingquan;CUI Lizhen;QIN Ling;LI Bin(School of Information Engineering,Inner Mongolia University of Science&Technology,Baotou 014010,China)
出处
《激光杂志》
北大核心
2020年第5期31-34,共4页
Laser Journal
基金
国家自然科学基金项目(No.61501266)
国家自然科学基金项目(No.61761038)
内蒙古自治区科技计划项目(No.201502013-1)
内蒙古自治区自然基金项目(No.2015MS0623)。
关键词
可见光
室内定位系统
单LED
三边定位
粒子群算法
visible light
indoor positioning system
single LED
trilateral localization
particle swarm optimization
