Zobrazeno 1 - 10
of 79
pro vyhledávání: '"boom-type roadheader"'
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 4, Pp 153-158 (2024)
The coal rock hardness significantly affects the spatial operation status of boom-type roadheader. Analyzing the correlation between the spatial operation status of roadheader and changes in coal rock hardness can help better achieve automatic cuttin
Externí odkaz:
https://doaj.org/article/33bdef246e024e10b962a74a21e80cc9
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 3, Pp 114-121 (2024)
In the process of working state perception and control, the intelligent boom-type roadheader interferes with the position of the boom and shovel table mechanism. However, the existing research on the prevention of interference and collision in boom-t
Externí odkaz:
https://doaj.org/article/2e5cad222bb64663b5be8baaf8fbeca2
Research on the 'shape-performance-control' integrated digital twin system for boom-type roadheaders
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract The boom-type roadheader plays a crucial role in coal mining. However, conducting the real-time monitoring of the mechanical performance and comprehensive adaptive cutting in the dynamic cutting process are challenging. To address these issu
Externí odkaz:
https://doaj.org/article/7101f8edcedd4a0e9097939470244127
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 1, Pp 80-89 (2023)
The existing boom-type roadheader cutting control adopts a relatively simple control method and the cutting head completes the roadway section cutting at a constant speed. There's no comprehensive consideration of trajectory planning and autonomous s
Externí odkaz:
https://doaj.org/article/a6b02929be594fa28c4040fe7d56f143
Akademický článek
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Akademický článek
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Publikováno v:
Journal of Hebei University of Science and Technology, Vol 43, Iss 3, Pp 231-239 (2022)
In order to solve the problem of visual positioning failure caused by the contilever roadheader when the cutting part is blocked by the fuselage or the dust is serious,this paper proposed an auxiliary positioning method based on one-dimensional convo
Externí odkaz:
https://doaj.org/article/df7e6f75db34403d8074b77b816e7387
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 5, Pp 58-64 (2022)
In coal mine, the dust concentration is high and the illumination is low. The image acquisition quality and characteristic extraction effect are greatly affected by dust concentration. However, the camera parameters and image processing parameters ca
Externí odkaz:
https://doaj.org/article/65531940983149c68f2ef41607d099e2
Publikováno v:
SN Applied Sciences, Vol 3, Iss 8, Pp 1-16 (2021)
Abstract This study presents a dynamical model of the attitude angles of boom-type roadheader, to reveal the response characteristics of the attitude angles in steep coal seam. Based on the Lagrange equation, the dynamical model of the attitude angle
Externí odkaz:
https://doaj.org/article/b9fd93a422674e52bdf3bd821ac77d20
Publikováno v:
Gong-kuang zidonghua, Vol 46, Iss 8, Pp 15-20 (2020)
According to principle of pose detection of boom-type roadheader, pose detection methods of roadheader respectively based on sector laser, indoor GPS (iGPS), total station, machine vision, ultra wide band (UWB) and inertial navigation were introduced
Externí odkaz:
https://doaj.org/article/70a8e36de01f409dabdd6bdcd5fe470a