Results 21 to 30 of about 2,775 (199)

ОПТИМІЗАЦІЯ ЕНЕРГОДИНАМІЧНИХ ПРОЦЕСІВ В СИСТЕМАХ ЕЛЕКТРОПРИВОДУ КВАДРОКОПТЕРА

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2020
In order to save energy consumption of the battery for powering the quadrocopter flight stabilization system, it is pro-posed to optimize the process of current consumption by rotor electric drives, which are based on brushless DC motors.
Ю.О. Денисов   +3 more
doaj   +1 more source

Digitalization of agricultural industrial complex, application of robotics in agriculture [PDF]

open access: yesE3S Web of Conferences, 2021
The article deals with the issues of digitalization of the agro-industrial complex. It is noted that one of the important areas of digitalization is the development of information technologies and robotization of agriculture.
Baimukhamedov Malik   +3 more
doaj   +1 more source

Detecting northern peatland vegetation patterns at ultra‐high spatial resolution

open access: yesRemote Sensing in Ecology and Conservation, Volume 6, Issue 4, Page 457-471, December 2020., 2020
Vegetation patterns in northern peatlands are spatially heterogenic from ultra‐high to coarse scale; there is also evident between‐site heterogeneity but absent comparisons between sites. We used random forest regressions for tracking plant functional type (PFT) coverage, ordination axes, and fuzzy plant community clusters in three different northern ...
Aleksi Räsänen   +8 more
wiley   +1 more source

The use of unmanned aerial vehicles in flood hazard assessment

open access: yesJournal of Flood Risk Management, Volume 13, Issue 4, December 2020., 2020
Abstract Flood inundation models are central components of any flood risk analysis system because they transform the bulk discharge outputs from flood‐frequency analyses or rainfall‐runoff models into distributed predictions of flood hazard in terms of water depth, inundation extent, and flow velocity.
Emilia Karamuz   +2 more
wiley   +1 more source

Mathematical modeling of movement of multi-rotor type aircraft

open access: yesСистемный анализ и прикладная информатика, 2023
The problem of determining the features and setting the problem of mathematical modeling of multirotor aircraft (LA) is considered. Differences of their mathematical models from the classical mathematical models of aircraft and single-rotor helicopter ...
A. A. Lobaty, Penghao Gu
doaj   +1 more source

Learning‐based parametrized model predictive control for trajectory tracking

open access: yesOptimal Control Applications and Methods, Volume 41, Issue 6, Page 2225-2249, November/December 2020., 2020
Summary This article is concerned with the tracking of nonequilibrium motions with model predictive control (MPC). It proposes to parametrize input and state trajectories of a dynamic system with basis functions to alleviate the computational burden in MPC.
Carmelo Sferrazza   +2 more
wiley   +1 more source

ARDEA—An MAV with skills for future planetary missions

open access: yesJournal of Field Robotics, Volume 37, Issue 4, Page 515-551, June 2020., 2020
Abstract We introduce a prototype flying platform for planetary exploration: autonomous robot design for extraterrestrial applications (ARDEA). Communication with unmanned missions beyond Earth orbit suffers from time delay, thus a key criterion for robotic exploration is a robot's ability to perform tasks without human intervention.
Philipp Lutz   +10 more
wiley   +1 more source

Pushbroom Stereo for High-Speed Navigation in Cluttered Environments [PDF]

open access: yes, 2014
We present a novel stereo vision algorithm that is capable of obstacle detection on a mobile-CPU processor at 120 frames per second. Our system performs a subset of standard block-matching stereo processing, searching only for obstacles at a single depth.
Barry, Andrew J., Tedrake, Russ
core   +3 more sources

Development of an Automated Camera-Based Drone Landing System

open access: yesIEEE Access, 2020
Digital image processing serves as a multifunctional tool for measurement and positioning tasks in robotics. The present paper deals with the development of a camera-based positioning system for quadrocopters in order to automate their landing process ...
Malik Demirhan, Chinthaka Premachandra
doaj   +1 more source

Online Path Generation and Navigation for Swarms of UAVs

open access: yesScientific Programming, Volume 2020, Issue 1, 2020., 2020
With the growing popularity of unmanned aerial vehicles (UAVs) for consumer applications, the number of accidents involving UAVs is also increasing rapidly. Therefore, motion safety of UAVs has become a prime concern for UAV operators. For a swarm of UAVs, a safe operation cannot be guaranteed without preventing the UAVs from colliding with one another
Adnan Ashraf   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy