An Initial Alignment Technology of Shearer Inertial Navigation Positioning Based on a Fruit Fly-Optimized Kalman Filter Algorithm. [PDF]
Comput Intell Neurosci, 2020 The shearer is one of the core equipment of the fully mechanized coal face. The fast and accurate positioning of the shearer is the prerequisite for its memory cutting, intelligent height adjustment, and intelligent speed adjustment. Inertial navigation technology has many advantages such as strong autonomy, good concealment, and high reliability.
Wan M, Wang Z, Si L, Tan C, Wang H.
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Meitan kexue jishu, 2023 The long-term precision of shearer independent positioning device is an important research content of intelligent mining. The current shearer positioning accuracy is hard to meet the demands of automatic mining, and we established a fusion positioning ...
Bo CAO, Shibo WANG, Shirong GE, Cheng LU
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Research on combined positioning method of shearer onfully mechanized mining face of thin coal seam
Gong-kuang zidonghua, 2019 In order to solve problems of real-time positioning and automatic navigation of shearer, a combined positioning method of shearer on fully mechanized mining face of thin coal seam was proposed for difficulty of meeting requirements of rapid, real-time ...
ZHOU Kaiping
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Coal shearer positioning method based on chain-style base station coordinate fusion
Gong-kuang zidonghuaIn the narrow and elongated space of the coal mining face, Ultra-Wideband (UWB) base stations are distributed in a chain-like manner. Disturbances such as scattering, diffraction, and attenuation of communication signal transmission, along with the lack ...
YANG Yi +4 more
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Gong-kuang zidonghua, 2014 The paper analyzed research status and existed problems of positioning technology of sensors of supports of shearer, positioning technology based on trackage odometer and autonomous positioning technology.
HAO Shangqing +4 more
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Precise Shearer Positioning Technology Using Shearer Motion Constraint and Magnetometer Aided SINS [PDF]
Mathematical Problems in Engineering, 2021 The key technology to realize intelligent unmanned coal mining is the strapdown inertial navigation system (SINS); however, the gradual increase of cumulative error during the working process needs to be solved. On the basis of an SINS/odometer (OD)-integrated navigation system, this paper adds magnetometer (MAG)-aided positioning and proposes an SINS ...
Ming Yan, Zengcai Wang
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A LiDAR-Aided Inertial Positioning Approach for a Longwall Shearer in Underground Coal Mining [PDF]
Mathematical Problems in Engineering, 2021 The absolute three-dimensional position of a longwall shearer is fundamental to longwall mining automation. The positioning of the longwall shearer is usually realized by the inertial navigation system (INS) and odometer (OD). However, the position accuracy of this positioning approach gradually decreases over time due to the gyro drift.
Jiangtao Zheng +5 more
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Study on key technologies of unmanned driving shearer
Gong-kuang zidonghua, 2016 The paper described technical architecture of unmanned driving shearer from aspects of recognition system, decision-making system and control system. It discussed key technologies of unmanned driving shearer and their breakthrough directions, including ...
ZHANG Hao, GE Shirong
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Mindful Tutors, Embodied Writers: Positioning Mindfulness Meditation as a Writing Strategy to Optimize Cognitive Load and Potentialize Writing Center Tutors' Supportive Roles [PDF]
, 2018 In this article, I examine the potential that mindfulness meditation has to re-frame and expand the affective, supportive roles of writing center tutors.
Johnson, Sarah
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Slip history of the 2003 San Simeon earthquake constrained by combining 1-Hz GPS, strong motion, and teleseismic data [PDF]
, 2004 The slip history of the 2003 San Simeon earthquake is constrained by combining strong motion and teleseismic data, along with GPS static offsets and 1-Hz GPS observations.
Choi, Kyuhong +4 more
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