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Bücher Englische Bücher Wissen & Bildung Naturwissenschaft, Medizin, Informatik, Technik Technik On-the-Fly Workspace Visualization for Redundant Manipulators
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On-the-Fly Workspace Visualization for Redundant Manipulators
Mirko Kunze (Taschenbuch, Englisch)
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Beschreibung
Within this thesis, different concepts for on-the-fly visualization of workspace boundaries for 7-DoF manipulators have been investigated. It is explored, which possibilities parallelization and the utilization of modern graphics cards can bring to workspace visualization through on-line computation of positioning limits for the current situation. The higher goal is to employ intuitive… visualization as a substitute for the natural human feeling for reachability that humans possess for their own arms.
The workspace is considered to be the set of poses that can be accessed by the TCP, taking into account robot joint limits, link lengths and singularities. The novel distinction between the directly and the generally accessible workspace is made: The directly accessible workspace contains all points that are reachable for the tool center point from the current position in a linear motion or a rotation about a constant axis without reconfiguration. The generally accessible workspace contains all reachable poses, even if a reconfiguration is necessary to reach them.
The generally accessible workspace is obtained using rasterization of the Cartesian space and assessing the reachability of every node by analytical inverse kinematics computation. The directly accessible workspace is obtained via simultaneous virtual robot motion in all directions.
In order to reduce the complexity of this six-dimensional problem, it is split into the consideration of translation limits while keeping the orientation constant and rotation limits while keeping the TCP position constant.
Different visualization concepts are devised, based on the considerations above. The motion boundaries for the current robot pose are displayed as semi transparent barriers within a virtual environment.
All investigated concepts are exemplarily implemented for the DLR/KUKA LBR IV manipulator and consider its redundant kinematic structure using a novel cost function concept. The usability and perspicuity of the devised visualization concepts have been assessed in a user study. While the translational components received good to excellent ratings, the rotational components scored average but still proved to be effective in the tested scenario. Dieses Produkt haben wir gerade leider nicht auf Lager.
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Bis zu 50 % günstiger als neu
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Technische Daten
Erscheinungsdatum
06.03.2017
Sprache
Englisch
EAN
9783843930239
Herausgeber
Dr. Hut
Serien- oder Bandtitel
Ingenieurwissenschaften
Sonderedition
Nein
Autor
Mirko Kunze
Seitenanzahl
140
Einbandart
Taschenbuch
Schlagwörter
On-the-Fly Workspace Visualization, 7-DoF manipulators, DLR/KUKA LBR IV manipulator
Thema-Inhalt
T - Technologie, Ingenieurswissenschaft, Landwirtschaft, Industrieprozesse
TB - Technologie, allgemein
TBC - Ingenieurswesen, Maschinenbau allgemein
Höhe
240 mm
Breite
17 cm
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