河南理工大学学报（自然科学版）2024，Vol.43Issue(2)：147-154,8.DOI:10.16186/j.cnki.1673-9787.2022040020
井下巷道新型可见光通信光源布局方法
Layout optimization method of new visible light communication light source in mine tunnel
摘要
Abstract
Objectives Aiming at the problem of large differences in visible light communication signals in underground mine tunnels,and increased signal errors at the receiving end,a new visible light communica-tion light source layout method in underground mine tunnels was proposed.Methods Compared with exist-ing light source layout methods,the system performance of the two layout methods was evaluated from three aspects:illumination,received power,and signal-to-noise ratio.The coefficients of variation of illumination uniformity,power standard deviation and signal-to-noise ratio were introduced to evaluate the overall perfor-mance of the system.Results Through simulation experiments,the impact of different half-power angles on the system performance of the layout method in this paper was analyzed,and it was concluded that the opti-mal value of the half-power angle was 50°～70°.When the half-power angle was 70°,compared with the exist-ing light source layout method,the illumination uniformity of the layout method proposed in this article was reduced from 0.758 to 0.407,a reduction of 46.3%,and the difference between the minimum illumination and the maximum illumination was smaller,the illumination distribution was more uniform;in terms of re-ceived power,the power standard deviation was reduced from 0.97 to 0.42,a reduction of 56.7%,and the power fluctuation was reduced too,and the received power distribution was more uniform;in terms of signal-to-noise ratio,the signal-to-noise ratio variation coefficient was reduced from 0.013 7 dropped to 0.007 2,a reduction of 47.7%,and the signal distribution was more uniform.Conclusions The light source layout method proposed in this article was overall better than existing methods,and can provide a new solution for the light source layout in underground mine tunnels.关键词
井下巷道/光源布局/仿真分析/可见光通信Key words
underground mine tunnel/light source layout/simulation analysis/visible light communication分类
信息技术与安全科学引用本文复制引用
贺军义,范广晖,张敏,韩一杰,吴梦翔,冯嘉莘..井下巷道新型可见光通信光源布局方法[J].河南理工大学学报（自然科学版）,2024,43(2):147-154,8.基金项目
国家自然科学基金资助项目(61872126,61772159) （61872126,61772159）
河南省科技攻关项目(242102210185) （242102210185）
河南省高校重点研究基金资助项目(20A520015) （20A520015）
河南理工大学博士基金资助项目(60907023) （60907023）
