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External Wrench Estimation, Collision Detection, and Reflex Reaction for Flying Robots

Tomic, Teodor und Ott, Christian und Haddadin, Sami (2017) External Wrench Estimation, Collision Detection, and Reflex Reaction for Flying Robots. IEEE Transactions on Robotics, 33 (6), Seiten 1467-1482. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TRO.2017.2750703. ISSN 1552-3098.

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Offizielle URL: https://ieeexplore.ieee.org/document/8059847

Kurzfassung

Flying in unknown environments may lead to unforeseen collisions, which may cause serious damage to the robot and/or its environment. In this context, fast and robust collision detection combined with safe reaction is, therefore, essential and may be achieved using external wrench information. Also, deliberate physical interaction requires a control loop designed for such a purpose and may require knowledge of the contact wrench. In principle, the external wrench may be measured or estimated. Whereas measurement poses large demands on sensor equipment, additional weight, and overall system robustness, in this paper we present a novel model-based method for external wrench estimation in flying robots. The algorithm is based on the onboard inertial measurement unit and the robot's dynamics model only. We design admittance and impedance controllers that use this estimate for sensitive and robust physical interaction. Furthermore, the performance of several collision detection and reaction schemes is investigated in order to ensure collision safety. The identified collision location and associated normal vector located on the robot's convex hull may then be used for sensorless tactile sensing. Finally, a low-level collision reflex layer is provided for flying robots when obstacle avoidance fails, also under wind influence. Our experimental and simulation results show evidence that the methodologies are easily implemented and effective in practice.

elib-URL des Eintrags:https://elib.dlr.de/192579/
Dokumentart:Zeitschriftenbeitrag
Titel:External Wrench Estimation, Collision Detection, and Reflex Reaction for Flying Robots
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Tomic, TeodorTeodor.Tomic (at) dlr.dehttps://orcid.org/0000-0002-8460-7568NICHT SPEZIFIZIERT
Ott, ChristianChristian.Ott (at) dlr.dehttps://orcid.org/0000-0003-0987-7493NICHT SPEZIFIZIERT
Haddadin, Samihaddadin (at) tum.dehttps://orcid.org/0000-0001-7696-4955NICHT SPEZIFIZIERT
Datum:5 Oktober 2017
Erschienen in:IEEE Transactions on Robotics
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:33
DOI:10.1109/TRO.2017.2750703
Seitenbereich:Seiten 1467-1482
Verlag:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1552-3098
Status:veröffentlicht
Stichwörter:Collision detection, flying robots, interaction control, reflex reaction
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Robotik
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R RO - Robotik
DLR - Teilgebiet (Projekt, Vorhaben):R - Planetare Exploration, R - Multisensorielle Weltmodellierung (RM) [RO]
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Robotik und Mechatronik (ab 2013)
Hinterlegt von: Strobl, Dr. Klaus H.
Hinterlegt am:19 Dez 2022 07:32
Letzte Änderung:19 Dez 2022 07:32

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