Blar i SINTEF Open på forfatter "Grøtli, Esten Ingar"
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On the globally exponentially convergent immersion and invariance speed observer for mechanical systems
Arbo, Mathias Hauan; Grøtli, Esten Ingar; Gravdahl, Jan Tommy (Journal article; Peer reviewed, 2017)In this article we present a reformulation of the invariance and immersion speed observer of Astolfi et al. as applied to mechanical systems with bounded inertia matrices. This is done to explore the possibility of its ... -
Path planning for UAV harvesting information from dynamical wireless sensor nodes at sea
Ho, Tu Dac; Grøtli, Esten Ingar; Johansen, Tor Arne (Chapter, 2022)A system of several wireless sensor nodes and one unmanned aerial vehicle (UAV) is considered in this research. The nodes are only floating and drifting with the sea stream. The UAV will be operating as a data mule to ... -
PSO and Kalman Filter-Based Node Motion Prediction for Data Collection from Ocean Wireless Sensors Network with UAV
Ho, Tu Dac; Grøtli, Esten Ingar; Johansen, Tor Arne (Peer reviewed; Journal article, 2021)In this paper, we consider a wireless sensor network of nodes at the sea surface drifting due to wind and sea currents. In our scenario an Unmanned Aerial Vehicle (UAV) will be used to gather data from the sensor nodes. ... -
Real-time temporal adaptation of dynamic movement primitives for moving targets
Østvik, Andreas; Grøtli, Esten Ingar; Vagia, Marialena; Gravdahl, Jan Tommy (Chapter; Peer reviewed, 2021)This work is aimed at extending the standard dynamic movement primitives (DMP) framework to adapt to real-time changes in the task execution time while preserving its style characteristics. We propose an alternative ... -
ROV Navigation in a Fish Cage with Laser-Camera Triangulation
Bjerkeng, Magnus Christian; Kirkhus, Trine; Caharija, Walter; Thielemann, Jens T; Amundsen, Herman Biørn; Ohrem, Sveinung Johan; Grøtli, Esten Ingar (Peer reviewed; Journal article, 2021)Aquaculture net cage inspection and maintenance is a central issue in fish farming. Inspection using autonomous underwater vehicles is a promising solution. This paper proposes laser-camera triangulation for pose estimation ... -
Safe navigation in a coastal environment of multiple surface vehicles under uncertainties: A combined use of potential field constructions and NMPC
Tran, Ngo-Quoc-Huy; Prodan, Ionela; Grøtli, Esten Ingar; Lefevre, Laurent (Peer reviewed; Journal article, 2020)This paper deals with the motion planning problem for surface vehicles in the presence of varying environmental disturbances. The goal is to steer the vehicles from an initial to a final destination while ensuring connectivity ... -
Safety and security of drones in the oil and gas industry
Johnsen, Stig Ole; Bakken, Trond; Transeth, Aksel Andreas; Holmstrøm, Sture; Merz, Mariann; Grøtli, Esten Ingar; Jacobsen, Sigurd Robert; Storvold, Rune (Chapter, 2020)This paper describes safety and security challenges and best practices of the use of drones in the oil and gas industry, with consideration of the harsh weather conditions in the Northern Territories of Norway. We have ... -
SEATONOMY Design, development and validation of marine autonomous systems and operations
Grøtli, Esten Ingar; Reinen, Tor Arne; Grythe, Knut; Transeth, Aksel Andreas; Vagia, Marialena; Bjerkeng, Magnus Christian; Rundtop, Per; Svendsen, Eirik; Rødseth, Ørnulf Jan; Eidnes, Grim (Journal article, 2015)The SEATONOMY methodology provides a structured approach for design, development and validation of mobile autonomous maritime operations and systems. The goal is to achieve this by providing system developers of autonomous ... -
SEATONOMY Design, development and validation of marine autonomous systems and operations
Grøtli, Esten Ingar; Reinen, Tor Arne; Grythe, Knut; Transeth, Aksel Andreas; Vagia, Marialena; Bjerkeng, Magnus Christian; Rundtop, Per; Svendsen, Eirik; Rødseth, Ørnulf Jan; Eidnes, Grim (Journal article, 2015)The SEATONOMY methodology provides a structured approach for design, development and validation of mobile autonomous maritime operations and systems. The goal is to achieve this by providing system developers of autonomous ... -
Semiglobal exponential stability of a counter-current and co-current guidance scheme
Caharija, Walter; Grøtli, Esten Ingar; Pettersen, Kristin Ytterstad (Journal article; Peer reviewed, 2018)A control technique for counter-current and co-current guidance of underactuated marine vehicles is revisited and stronger stability properties are shown. In particular, the stronger property of uniform semiglobal exponential ... -
Semiglobal exponential stability of a counter-current and co-current guidance scheme
Caharija, Walter; Grøtli, Esten Ingar; Pettersen, Kristin Ytterstad (Journal article; Peer reviewed, 2018)A control technique for counter-current and co-current guidance of underactuated marine vehicles is revisited and stronger stability properties are shown. In particular, the stronger property of uniform semiglobal exponential ... -
Status og potensiale for dronebasert teknologi for naturfare og infrastruktur. Oppsummering av bransjeseminar 13. januar 2015
Grøtli, Esten Ingar; Transeth, Aksel Andreas (SINTEF Rapport;, Research report, 2015)NIFS (Naturfare, Infrastruktur, Flom og Skred) er et felles satsingsområde mellom etatene Jernbaneverket, Norges vassdrags- og energidirektorat og Statens vegvesen. SINTEF har i samarbeid med NIFS avholdt et bransjeseminar ... -
Trends in Smart Manufacturing: Role of Humans and Industrial Robots in Smart Factories
Evjemo, Linn Danielsen; Gjerstad, Tone Beate; Grøtli, Esten Ingar; Sziebig, Gabor (Peer reviewed; Journal article, 2020)Purpose of Review: This paper provides an overview of the role of humans and robots in smart factories, their connection to Industry 4.0, and which progress they make when it comes to related technologies. Recent Findings: ... -
Vind: a robot self-localization framework
Azpiazu, Jon; Bjerkeng, Magnus Christian; Tjønnås, Johannes; Grøtli, Esten Ingar (Chapter, 2016)