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煤矿智能化与矿用5G和网络硬切片技术
Coal mine intelligence,mine 5G and network hard slicing technology
【索引】孙继平.煤矿智能化与矿用5G和网络硬切片技术[J].工矿自动化,2021,47(8):1-6.
【Reference】SUN Jiping.Coal mine intelligence,mine 5G and network hard slicing technology[J].Industry and Mine Automation,2021,47(8):1-6.
【DOI】10.13272/j.issn.1671-251x.17821
【作者】孙继平
【Author】 SUN Jiping
【作者机构】中国矿业大学(北京), 北京100083
【Unit】China University of Mining and Technology(Beijing), Beijing 100083, China
【摘要】为减少煤矿井下采掘工作面作业人员,提出了采掘工作面无人5G地面远程控制方法:在采掘工作面设置工业摄像机和传感器,将视频、音频和传感器信号通过5G网络传输至地面,地面操作人员远程操作设备,将控制命令通过5G网络传输至采掘工作面,控制采掘设备动作。提出了用于综采工作面无人地面远程控制的无线传输距离和传输带宽计算方法。综采工作面两端头的基站之间无线传输距离应不小于综采工作面长度的1/2。综采工作面无人地面远程控制所需上行传输总带宽与综采工作面长度成正比,与液压支架中心距成反比,与支架和摄像机数量比成反比,与单台摄像机视频压缩后所需传输带宽成正比。为减少综采工作面无人地面远程控制对上行传输带宽的需求,可以只传输邻近采煤机的摄像机视频。综采工作面无人地面远程控制所需上行传输最小带宽与邻近采煤机的摄像机数量成正比,与单台摄像机视频压缩后所需传输带宽成正比。提出了综采工作面无人地面远程控制系统无线传输距离测试方法,用于综采工作面无人地面远程控制的5G等无线传输系统,在保证传输带宽、时延和可靠性的前提下,对无线传输距离进行测试,基站上行无线传输带宽不得小于20 Mbit/s,同时无线传输距离不小于150 m。提出了基于网络硬切片的全矿井一体化信息传输网,通过网络硬切片,给煤矿安全监控、矿井监控、人员及车辆和设备定位、视频监视、语音通信、5G通信等分配不同的信道,既保证了煤矿安全监控和矿井监控等高可靠、低时延的要求,也统一了煤矿井下信息传输网络,将煤矿安全监控网、矿用工业以太网和矿用5G通信网等多网合一。
【Abstract】In order to reduce the number of operators in the working face of coal mines, an unmanned 5G ground remote control method for working face is proposed. The industrial cameras and sensors are set up in the working face, which transmit video, audio and sensor signals to the ground through the 5G network. The ground operator operates the equipment remotely, which transmits control commands to the working face through the 5G network, and controls the actions of the mine equipment. The wireless transmission distance and transmission bandwidth calculation method are proposed for unmanned ground remote control of the fully mechanized working face. The wireless transmission distance between the base stations at the two ends of the fully mechanized working face should not be less than 1/2 of the length of the fully mechanized working face. The total uplink transmission bandwidth required for unmanned ground remote control of the fully mechanized working face is proportional to the length of the fully mechanized working face, inversely proportional to the center distance of the hydraulic support, inversely proportional to the number of supports and cameras, and proportional to the transmission bandwidth required for the compressed video of a single camera. In order to reduce the demand for uplink transmission bandwidth for unmanned ground remote control of fully mechanized working face, it is possible to only transmit the camera videos of the adjacent shearers. The minimum bandwidth of uplink transmission required for unmanned ground remote control the fully mechanized working face is proportional to the number of cameras of the adjacent shearers, and proportional to the required transmission bandwidth of a single camera after video compression. The wireless transmission distance test method for the unmanned ground remote control system of the fully mechanized working face is proposed. The method is applied for the wireless transmission system such as 5G for the unmanned ground remote control system of the fully mechanized working face. Under the premise of ensuring transmission bandwidth, time delay and reliability, the wireless transmission distance is tested. The test shows that the uplink wireless transmission bandwidth of the base station shall not be less than 20 Mbit/s, and the wireless transmission distance shall not be less than 150 m. This study proposes the all-mine integrated information transmission network based on network hard slicing. Through network hard slicing, different channels are allocated for coal mine safety monitoring, mine monitoring, personnel and vehicle and equipment positioning, video monitoring, voice communication, 5G communication, etc. This method guarantees the high reliability and low time delay requirements of coal mine safety monitoring and mine monitoring, and unifies the underground information transmission network of coal mines. Moreover, it integrates multiple networks such as coal mine safety monitoring network, mine industrial Ethernet and mine 5G communication network.
【关键词】 煤矿智能化; 5G; 网络硬切片; 无人工作面; 地面远程控制; 全矿井一体化信息传输网; 无线传输距离
【Keywords】coal mine intelligence; 5G; network hard slicing; unmanned working face; ground remote control; all-mine integrated information transmission network; wireless transmission distance
【文献出处】工矿自动化,2021年8期
【基金】国家重点研发计划资助项目(2016YFC0801800)
【分类号】TD655
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