Results 21 to 30 of about 4,118,521 (300)

Adaptive intelligent cutting technology of the shearer based on the high-precision three-dimensional dynamic geological model

open access: yes矿业科学学报, 2023
If the shearer is cutting coal using the "memory cutting" technique, a manual demonstration is required.The memory cutting technology has higher requirements on the reserving conditions of coal seams.When the coal seam fluctuates greatly, frequent manual
Hou Yunbing   +5 more
doaj   +1 more source

A New Challenge: Path Planning for Autonomous Truck of Open-Pit Mines in The Last Transport Section

open access: yesApplied Sciences, 2020
During the operation of open-pit mining, the loading position of a haulage truck often changes, bringing a new challenge concerning how to plan an optimal truck transportation path considering the terrain factors.
Ziyu Zhao, Lin Bi
doaj   +1 more source

Research on Autonomous Cutting Method of Cantilever Roadheader

open access: yesEnergies, 2022
Roadway excavation is the leading project in coal mining, and the cantilever roadheader is the main equipment in roadway excavation. Autonomous cutting by cantilever roadheaders is the key to realize safe, efficient and intelligent tunneling for ...
Ziyue Xu   +5 more
doaj   +1 more source

Cutting coal path planning of shearer up-drum based on double arc spline curve

open access: yesGong-kuang zidonghua, 2020
The life of the drum cutters is shortened and the coal output rate is reduced due to the problem that the shearer up-drum often cuts the roof rocks. It is therefore essential to plan the cutting path of the up-drum.
CHAI Haoluo, XING Cu'en, HUA Tongxing
doaj   +1 more source

A Disaster Relief UAV Path Planning Based on APF-IRRT* Fusion Algorithm

open access: yesDrones, 2023
Unmanned Aerial Vehicle (UAV) path planning has increasingly become the key research point for civilian drones to expand their use and enhance their work efficiency. Focusing on offline derivative algorithms, represented by Rapidly-exploring Random Trees
Qifeng Diao   +3 more
doaj   +1 more source

An Automatic Detection Method for Cutting Path of Chips in Wafer

open access: yesMicromachines, 2022
Microscopic imaging is easily affected by the strength of illumination, and the chip surface qualities of different wafers are different. Therefore, wafer images have defects such as uneven brightness distribution, obvious differences in chip region ...
Yuezong Wang   +3 more
doaj   +1 more source

Cooperative path planning and cooperative perception for UAVs swarm [PDF]

open access: yes, 2012
In this research Pythagorean Hodograph based path planning and camera based cooperative perception are investigated separately and then these two entirely separate areas (Path Planning and Perception) are integrated for the application in online pop-up ...
Shah, M. A.
core   +3 more sources

Dynamic Path Planning for a 7-DOF Robot Arm [PDF]

open access: yes, 2006
Klanke S, Lebedev DV, Haschke R, Steil JJ, Ritter H. Dynamic Path Planning for a 7-DOF Robot Arm. In: Int. Conf. Intelligent Robots and Systems.
Stefan Klanke   +9 more
core   +1 more source

Modelling of cutting fibrous composite materials: current practice [PDF]

open access: yes, 2015
Using fibre reinforced polymers (FRP) is increasing across many industries. Although FRP are laid-up in the near-net shape, several cutting operations are necessary to meet quality and dimensional requirements.
Kahwash, Fadi   +5 more
core   +1 more source

Towards a Trajectory Planning Concept: Augmenting Path Planning Methods by Considering Speed Limit Constraints [PDF]

open access: yes, 2014
Trajectory planning is an essential part of systems controlling autonomous entities such as vehicles or robots. It requires not only finding spatial curves but also that dynamic properties of the vehicles (such as speed limits for certain maneuvers) must
Chrpa, Lukáš   +3 more
core   +1 more source

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