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智能反射面技术及其在煤矿井下无线盲区覆盖的应用探讨

李世银 张鹏 闵明慧 李志伟 张梦迪 肖家杨

李世银,张鹏,闵明慧,等. 智能反射面技术及其在煤矿井下无线盲区覆盖的应用探讨[J]. 工矿自动化,2023,49(6):112-119.  doi: 10.13272/j.issn.1671-251x.18137
引用本文: 李世银,张鹏,闵明慧,等. 智能反射面技术及其在煤矿井下无线盲区覆盖的应用探讨[J]. 工矿自动化,2023,49(6):112-119.  doi: 10.13272/j.issn.1671-251x.18137
LI Shiyin, ZHANG Peng, MIN Minghui, et al. Discussion on intelligent reflecting surface technology and its application in wireless blind spot coverage in coal mines[J]. Journal of Mine Automation,2023,49(6):112-119.  doi: 10.13272/j.issn.1671-251x.18137
Citation: LI Shiyin, ZHANG Peng, MIN Minghui, et al. Discussion on intelligent reflecting surface technology and its application in wireless blind spot coverage in coal mines[J]. Journal of Mine Automation,2023,49(6):112-119.  doi: 10.13272/j.issn.1671-251x.18137

智能反射面技术及其在煤矿井下无线盲区覆盖的应用探讨

doi: 10.13272/j.issn.1671-251x.18137
基金项目: 国家自然科学基金资助项目(62101557,61771474);中国博士后科学基金项目(2022M713378);江苏省研究生科研与实践创新计划资助项目(KYCX23_2708);中国矿业大学研究生创新计划资助项目(2023WLKXJ097)。
详细信息
    作者简介:

    李世银(1971—),男,四川犍为人,教授,主要研究方向为无线通信和智能感知与精确定位等,E-mail:lishiying@cumt.edu.cn

  • 中图分类号: TD655

Discussion on intelligent reflecting surface technology and its application in wireless blind spot coverage in coal mines

  • 摘要: 针对现有无线通信技术在煤矿井下非视距场景中无线盲区覆盖所面临的难题,提出在煤矿井下无线通信系统中引入智能反射面(IRS)实现无线信号覆盖补盲的解决思路。分析了煤矿井下无线覆盖盲区问题的成因,包括封闭的矿井环境特征、普遍存在的非视距场景、发射功率与天线设置的安全约束。然而传统的煤矿井下无线覆盖盲区问题解决方案在硬件部署、维护成本、技术实现等方面存在局限性,无法真正满足矿山具体场景下的安全和高效通信需求。IRS因其低成本、低功耗、易部署和可扩展性等特点,在实现覆盖补盲方面具有性能优势。从硬件结构、辅助的信道模型和典型应用场景(精准定位、信能同传、无人机通信、边缘计算和物理层安全)3个方面介绍了IRS技术。提出了利用IRS技术优化井下无线盲区覆盖:通过在煤矿井下合理部署IRS,减少墙体对主要信号分量的吸收和散射,并利用IRS可调控的反射特性来优化信号的传播,以显著提高信号强度和覆盖范围。指出了IRS技术在煤矿井下无线通信中未来研究方向,包括IRS辅助的覆盖补盲系统的能量管理、基于人工智能的IRS辅助的井下通信、新型IRS技术应用和IRS灵活部署。

     

  • 图  1  IRS硬件结构

    Figure  1.  Hardware architecture of intelligent reflecting surface (IRS)

    图  2  IRS辅助的信道模型

    Figure  2.  IRS-aided signal model

    图  3  IRS典型应用场景

    Figure  3.  Typical application scenario of IRS

    图  4  IRS辅助井下无线通信系统

    Figure  4.  IRS-aided underground wireless communication system

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出版历程
  • 收稿日期:  2023-05-24
  • 修回日期:  2023-06-29
  • 网络出版日期:  2023-07-12

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