1Development of innovation team construction and key technology research in coal mine intelligenceWANG Guofa, FU Jiaxing, MENG LingyuAchievements of Scientific Research1-152Binocular vision-based displacement detection method for anchor digging robotMA Hongwei, CHAO Yong, XUE Xusheng, MAO Qinghua, WANG ChuanweiSpecial of Key Technologies of Coal Mine Robot16-253Foreign object recognition of belt conveyor in coal mine based on improved YOLOv7MAO Qinghua, LI Shikun, HU Xin, XUE Xusheng, YAO LijieSpecial of Key Technologies of Coal Mine Robot26-324Design of foreign object recognition and positioning system for sorting robot of coal mine belt conveyorXUE Xusheng, YANG Xingyun, QI Guanghao, MA Hongwei, MAO Qinghua, SHANG XinmangSpecial of Key Technologies of Coal Mine Robot33-415Research progress and key technologies of intelligent coal-gangue sorting robotZHANG Ye, MA Hongwei, WANG Peng, CAO Xiangang, WEI Xiaorong, ZHOU WenjianSpecial of Key Technologies of Coal Mine Robot42-48,566Coal mine roadway environment-oriented LiDAR and IMU fusion positioning and mapping methodMA Aiqiang, YAO Wanqiang, LIN Xiaohu, ZHANG Liandui, ZHENG Junliang, WU Mouda, YANG XinSpecial of Key Technologies of Coal Mine Robot49-5673D map construction of coal mine roadway mobile robot based on integrated factor graph optimizationZOU Xiaoyu, HUANG Xinmiao, WANG Zhongbin, FANG Dongsheng, PAN Jie, SI LeiSpecial of Key Technologies of Coal Mine Robot57-67,928LiDAR/IMU tightly-coupled SLAM method for coal mine mobile robotLI Menggang, HU Eryi, ZHU HuaSpecial of Key Technologies of Coal Mine Robot68-789Research on tightly combined positioning method of coal mine robot based on UWB and IMUYU Lu, TANG Chaoli, HUANG Yourui, HAN Tao, XU Shanyong, FU JiahaoSpecial of Key Technologies of Coal Mine Robot79-8510Research on key technologies of coal mine roadway dust cleaning robotLI Shijun, REN Huaiwei, ZHANG Desheng, MA Ziyan, ZHOU Jie, ZHAO Shuji, DU MingSpecial of Key Technologies of Coal Mine Robot86-9211Research on obstacle avoidance control method of multi-rotor aircraft in coal mineGUO Aijun, WANG Miaoyun, MA Hongwei, ZHANG Xuhui, XUE Xusheng, DU Yuyang, ZHANG ChaoSpecial of Key Technologies of Coal Mine Robot93-10012High-efficiency gas extraction technology of staged fracturing roof with sand of underground broken and soft coal seamSUN Siqing, LI WenboAcademic Column of Young Expert Committee101-10713Coal mine external fire detection method based on edge intelligenceZHAO Duan, LI Tao, DONG Yanqiang, WANG Zhiqiang, LIU ChunAcademic Column of Young Expert Committee108-11514Analysis of influencing factors of coal mine water inrush accidents based on DEMATEL-ISM-BNHONG Weibin, SHENG WuAnalysis Research116-12215Research on safe power threshold of radio wave explosion-proof in coal mineLIANG Weifeng, SUN Jiping, PENG Ming, PAN Tao, ZHANG GaominAnalysis Research123-128,16316Coordinated optimization method for IGBT peak voltage suppression of mine-used inverterWANG Yue, SHI Han, RONG Xiang, JIANG DezhiExperimental Research129-136,14317Mining machine cutting load classification based on vibration signalXU Zhipeng, LIU Zhenjian, ZHUANG Deyu, YIN YuxiExperimental Research137-14318Study on reasonable width of coal pillar under water-rock interactionKONG Fanlong, LIU Jingdong, TIAN Lingtao, ZHANG Zhiqiang, WANG Dongdong, ZHENG Zhiqiang, XU QiangExperimental Research144-15019Intelligent control system design for water treatment device in coal mineZHAO Kangkang, LIU BoExperience Exchange151-15720Design of low-power test platform for reversing characteristics of mine solenoid pilot valveLI JunshiExperience Exchange158-163 