1Status of intelligent coal technology research and policy developmentHU Qingsong, QIAN Jiansheng, LI Shiyin, SUN YanjingSpecial of Intelligent Control in Underground Space1-82Safety technical requirements and inspection methods of coal mine 5G communication systemZHENG Xiaolei, LIANG HongAnalysis Research9-13,333The stress distribution of coal and rock mass and the risk evaluation of rock burst in the composite structure areaGAO Jiaming, XIA Yongxue, YANG Guangyu, CHEN XuehuiAnalysis Research14-19,264Research on mining damage characteristics of roadway support structure in high stress areaCHANG Lizong, SU Xuegui, DU Xianjie, YANG Pengbo, GUO MaomaoAnalysis Research20-265Research on the variation law of coal electrical parameters under different temperatures and detection frequenciesZHENG Xuezhao, XU Chengyu, WANG Baoyuan, YANG Wei, CHEN Yineng, ZHANG DuoAnalysis Research27-336Research on gas sensitive mechanism of low concentration methane threshold based on micro-nano ionization sensorLIU Changyi, ZHANG Jingyuan, HUANG Xiangdong, ZHANG Ni, LI Jingbo, LIU JieAnalysis Research34-407Construction and application of knowledge graph for coal mine equipment maintenanceCAO Xiangang, ZHANG Mengyuan, LEI Zhuo, DUAN Xinyu, CHEN RuihaoAnalysis Research41-458Coal mine mobile robot positioning method based on fusion of vision and inertial navigationZHANG Yufei, MA Hongwei, MAO Qinghua, HUA Hongtao, SHI JinlongExperimental Research46-529Hybrid solution method for ultra-wideband positioning in coal minesCHEN Meirong, WANG Kai, ZHANG Jiachun, XU PengyuanExperimental Research53-5910Coal and gangue identification method based on EMD feature extraction and random forestDOU Xijie, WANG Shibo, LIU Houguang, CHEN Qianyou, ZOU Wencai, LU ZhaodongExperimental Research60-6511Research on face recognition method in working environment of coal preparation plantGAO Hongjie, CONG Haoran, GUO XiucaiExperimental Research66-70,7812Fault diagnosis of shearer rocker gear based on deep residual networkLI Changwen, CHENG Zeyin, ZHANG Xiaogang, DING HuaExperimental Research71-7813Intelligent safety monitoring and predictive maintenance system for mining equipmentXU Chang, WANG Daoyuan, LI Jingzhao, CHEN ZihuaExperimental Research79-82,8814Damage identification of broken wires inside and outside the wire ropeDOU Liancheng, ZHAN Weixia, BAI XiaoruiExperimental Research83-8815Movement law of overburden in upward fully mechanized working face and determination of support working resistanceGUO Yufeng, PU Shijiang, FU Wei, LIANG WenxuExperimental Research89-94,10016Research on frequency stability of magnetic coupling wireless power transfer systemZHANG Lian, JING Tingwei, ZHANG Lu, LI Mengtian, YANG KaiExperimental Research95-10017Two-dimensional laser scanner based coal mine shaft guide deformation detection deviceNIU Weifeng, ZONG Liangliang, WU Feng, TU Shiyu, AI Lingyun, HU Wenbin, GAN WeibingExperience Exchange101-104,11118Research and application of intelligent caving technology in fully mechanized working faceWU Tong, YU Rui, LIU Qing, WEI WenyanExperience Exchange105-11119Discussion on prevention and control experience of coal spontaneous combustion in 8.8 m super large mining height working faceLI YufuExperience Exchange112-118 