煤矿智能化是煤炭工业高质量发展的保障，当前处于煤矿智能化发展的初级阶段，仍然面临泛在感知难、多类型数据同步传输不可靠、远程控制实时性差、融合大数据的智能决策效率低等问题,面向垂直行业智能化应用的第五代移动通信技术(The fifth Generation Mobile Communication Technology，5G)为上述问题的解决提供了契机。本文分析了5G中的高频通信、大规模天线阵列、超密集组网、设备到设备通信、网络切片和移动边缘计算6项关键技术和各自的技术特征;研究了煤矿智能化应用在信息感知、多类型数据传输、实时决策控制、新技术应用和异构物联设备互联互通需求等方面的短板，以视频传输为例分析了4G技术在未来应用中的局限性，研究了井下WiFi组网的不足之处，指出了煤矿井下应用5G技术的必要性;结合5G技术优势和煤矿井下实际需求提出了基于5G技术的高精度实时定位与应用服务、虚拟交互应用、远程实时控制、远程协同运维及井下巡检和安防等煤矿井下应用场景，提出了基于混合现实的井下智能化开采和远程实时可视化操控的构想，给出了井下应用5G技术的总体架构:有线光纤骨干环网加5G覆盖，分析了实施要点，指出与井下应用场景的结合才能最大程度发挥5G技术在煤矿智能化开采中的作用，简要展望了基于5G技术的物联网、大数据、云计算、人工智能和虚拟现实等技术在煤矿智能化中的融合应用。

Coal mine intelligence is the way for a high quality development of coal industry. At present,it is in the pri- mary stage of coal mine intelligent development. It still has the problems of ubiquitous perception,unreliable synchro- nous transmission of multi-type data,poor real-time remote control,and low efficiency of intelligent decision-making in- tegrated with big data,and so on. The fifth generation mobile communication technology for the intelligent application of vertical industry provides an opportunity for solving the above problems. In this paper,six key technologies of high frequency communication,massive MIMO,ultra-dense network,device-to-device communication,network slicing and mobile edge computing in 5G are analyzed. It also studies the shortcomings of the intelligent application of coal mine in information perception,multi-type data transmission,real-time decision control,the application of new technology and the interconnection requirements of heterogeneous equipment. Taking video transmission as an example,the paper ana- lyzes the limitations of 4G technology in the future application,studies the shortcomings of underground WiFi networ- king,and points out the necessity of applying 5G technology underground in coal mine. Combined with the advantages of 5G technology and the actual requirements of coal mine,the paper puts forward some underground application sce- narios,such as high precision real-time positioning and application service,virtual interactive application,remote real- time control,remote cooperative operation and maintenance,underground inspection and security,based on 5G technol- ogy,and puts forward the conception of underground intelligent mining and remote real-time visual control based on mixed reality. Also,the paper gives the overall structure of underground application 5G technology:cable optical fiber backbone ring network plus 5G coverage,analyzes the key points of implementation,points out that the combination of 5G technology and underground application scene can maximize the role of 5G technology in intelligent mining of coal mine,and briefly looks forward to the integration and application of 5G technology based on 5G technology,such as In- ternet of things,big data,cloud computing,artificial intelligence and virtual reality in coal mine intelligence.

1 5G技术概述

2 煤矿智能化应用5G技术的必要性与可行性

   2.1 煤矿智能化应用5G技术的必要性

   2.2 煤矿智能化应用5G技术的可行性

3 5G在煤矿的应用场景

   3.1 基于5G的高精实时定位与应用服务

   3.2 基于5G的虚拟交互应用

   3.3 生产远程实时控制

   3.4 井下远程协同运维

   3.5 井下巡检和安防

4 前景展望