Application of 5G technology in coal mine heading face transportation system
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摘要: 针对掘进工作面运输系统通信网络存在的接入能力不足、传输可靠性低、传输带宽不足等问题，探讨了5G技术在煤矿掘进工作面运输系统中应用的必要性和可行性：经过优化设计的矿用5G系统性能指标达到预期，完全能够满足当前煤矿智能化建设对无线通信系统的需求；矿用5G通信模组、5G客户终端设备（CPE）为掘进工作面各类设备及传感器接入5G网络提供了设备支持。介绍了5G设备的矿用化改造重点解决的问题：建立了矿用5G网络架构，以满足井下5G信号覆盖需求；针对5G 设备功耗大的问题，对其结构进行了优化设计，并设计了散热装置；解决了5G基站多路射频输出与天线增益叠加后射频功率超标的问题。给出了掘进工作面运输系统5G网络架构及功能，借助5G网络大带宽、低时延、高可靠、广接入的特性，可实现掘进工作面运输系统各类传感设备的统一接入、各环节的高清视频监控、远程集中控制。Abstract: In the transportation system communication network of the heading face, there are problems such as insufficient access capacity, low transmission reliability and insufficient transmission bandwidth. In order to solve the above problems, the necessity and feasibility of the application of 5G technology in the transportation system of the coal mine heading face are discussed. The performance index of the optimized 5G system in coal mine has reached the expectation. The performance can fully meet the requirements of the current intelligent construction of coal mine for wireless communication system. 5G communication module and 5G customer premise equipment (CPE) in coal mine can provide equipment support for various equipment and sensors of heading face to access 5G network. This paper introduces the key problems to be solved in the mining transformation of 5G equipment. The 5G network architecture for mining is established to meet the demand of underground 5G signal coverage. In order to solve the problem of high power consumption of 5G equipment, the structure of 5G equipment is optimized and the heat dissipation device is designed. The problem that the RF power exceeds the standard after the superposition of multiple RF outputs and antenna gain of 5G base station is solved. The 5G network architecture and function of the heading face transportation system are proposed. With the characteristics of large bandwidth, low delay, high reliability and wide connection of 5G network, the unified access of various sensing equipment, HD video monitoring and remote centralized control of each link of the heading face transportation system can be realized.
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图 1 掘进工作面运输系统5G网络架构
Figure 1. 5G network architecture for heading face transportation system
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