摘要
为提高室内定位精度,提出了一种基于黄金正弦与Sigmoid连续化海鸥优化算法(GSCSOA)的接收信号强度(Received Signal Strength Indication,RSSI)可见光室内定位技术。传统的海鸥优化算法(SOA)收敛速度慢、寻优精度低,在海鸥搜寻过程中引入Sigmoid函数使算法在后期快速收敛,在海鸥扑食过程中加入黄金正弦机制能提高算法的寻优能力。在6 m×6 m×3 m的房间顶板上按3×3的网格状布设9盏LED灯,经过实验表明:利用传统的RSSI定位估计算法得到的定位精度为1.28 m,改进的海鸥优化算法结合RSSI的定位算法得到的定位精度为7.17 cm。显然,改进后的室内定位算法精度更高,可应用于大部分的室内定位场所。
To improve the indoor positioning accuracy, a Received Signal Strength Indication(RSSI) technique based on gold Sine and Sigmoid continuous Seagull optimization algorithm( GSCSOA) is proposed. The traditional SEAGull optimization algorithm(SOA) has slow convergence speed and low searching precision. Sigmoid function is introduced in the process of seagull searching to make the algorithm converge quickly in the later stage, and the golden sine mechanism is added in the process of seagull feeding to improve the searching ability of the algorithm. Nine LED lights were arranged in a grid of 3×3 on the roof of a room of 6 m×6 m×3 m. The experimental results show that the positioning accuracy obtained by the traditional RSSI positioning estimation algorithm is 1. 28 m, and the positioning accuracy obtained by the improved gull optimization algorithm combined with RSSI positioning algorithm is 7. 17 cm.Obviously, the improved indoor location algorithm has higher accuracy and can be applied to most indoor location places.
作者
刘双
余学祥
刘宇
LIU Shuang;YU Xuexiang;LIU Yu(School of Geomatics,Anhui University of Science and Technology,Huainan Anhui 232001,China;Key Laboratory of Aviation-aerospace-ground Cooperative Monitoring and Early Warning of Coal Mining-induced Disasters of Anhui Higher Education Institutes,Anhui University of Science and Technology,Huainan Anhui 232001,China;Coal Industry Engineering Research Center of Mining Area Environmental And Disaster Cooperative Monitoring,Anhui University of Science and Technology,Huainan Anhui 232001,China)
出处
《激光杂志》
CAS
北大核心
2023年第2期129-134,共6页
Laser Journal
基金
国家自然基金项目(No.41474026)。
关键词
可见光室内定位
改进海鸥优化算法
接收信号强度
三边定位法
visible light indoor positioning
improved seagull optimization algorithm
received signal strength indication
three-side positioning method
