基于光电二极管阵列传感器的可见光定位系统  

Visible Light Positioning System Based on Photodiode Array Sensor

作　　者：汝贵 秦岭[1] 王凤英[1] 胡晓莉[1] 赵德胜[1] Ru Gui;Qin Ling;Wang Fengying;Hu Xiaoli;Zhao Desheng(School of Digital and Intelligent Industry,Inner Mongolia University of Science and Technology,Baotou 014010,Inner Mongolia,China)

机构地区：[1]内蒙古科技大学数智产业学院,内蒙古包头014010

出　　处：《光学学报》2024年第21期56-64,共9页Acta Optica Sinica

基　　金：国家自然科学基金(62161041);内蒙古关键技术攻关项目(2021GG0104);内蒙古自然科学基金(2022MS06012)。

摘　　要：针对现有煤矿井下可见光定位技术中存在的系统定位精度低、训练时间长的问题,提出一种基于光电二极管(PD)阵列传感器的煤矿井下可见光定位系统。首先,结合各种PD阵列模型,包括方形、圆形和伞形PD阵列传感器,建立仿真模型;然后,提出一种简单循环单元(SRU)算法,以实现快速位置确定,并构建了基于SRU神经网络的定位系统。通过对比多种PD阵列模型,发现伞形PD阵列模型的定位精度最高。仿真结果表明,系统在3.6 m×3.6 m×3.0 m的空间内,基于伞形PD阵列传感器的可见光定位系统的平均定位误差为0.94 cm,训练时间为1 s。因此,该定位系统能够在煤矿井下提供可靠的定位服务。Objective Coal is an important energy resource in China and has long been the primary source of energy consumption.However,most coal resources are buried underground,posing significant safety challenges for underground coal mining.Moreover,the high incidence of coal mine accidents has adversely affected the development of the coal economy.To effectively enhance rescue outcomes in coal mine accidents,it is crucial to quickly and accurately locate trapped individuals and devise efficient rescue strategies.Big data analysis underscores these priorities as pivotal for significantly improving rescue operations.However,the underground environment of coal mines is complex and variable,which makes it difficult for traditional positioning systems to attain high accuracy.Therefore,achieving high-precision positioning of underground personnel has become an urgent problem to be solved.Based on this,we are dedicated to researching a new photodiode(PD)array receiver and installing it on miners’helmets to achieve high-precision positioning of underground workers in this study.Methods Firstly,we delve into how differently shaped PD array sensors affect the performance of the visible light positioning system in underground coal mines.The arrays are classified into a square 2×2 array,square 3×3 array,circular PD array(both square and ellipsoid),and umbrella PD array(both square and ellipsoid)based on their arrangement.Next,the neural network parameters are discussed to determine the optimal settings for positioning.Simulations of PD array sensors with the aforementioned arrangements are conducted to compare their positioning performance.Finally,a PD array receiver with optimal performance is selected to implement the visible light positioning system for underground coal mine operations.Results and Discussions We first discuss the network parameters of the SRU neural network to determine the optimal settings.The initial step involves simulating the square-type PD array receiver,where it is observed that the 3×3 squaretype PD a

关 键 词：PD阵列 传感器 可见光定位 煤矿井下 

分 类 号：TN929.1[电子电信—通信与信息系统]