Results 21 to 30 of about 4,871,656 (208)

Water Target Recognition Method and Application for Unmanned Surface Vessels [PDF]

open access: yesIEEE Access, 2022
Water target recognition is a critical challenge for the perception technology of unmanned surface vessels (USVs). In the application of USV, detection accuracy and the inference time both matter, while it is tough to strike a balance and single-frame water target detection behaves unstable in the video detection.
Liang Cheng 0005   +9 more
openaire   +2 more sources

Autonomous surface vessel for search and rescue operation [PDF]

open access: yes, 2021
Search and rescue operation is performed to save human life, for example during natural disasters, unfortunate incidents on the land, in the deepwater, or lakes.
Muhammad Haziq Norhisam   +8 more
core   +1 more source

Unmanned surface vessel heading control of model-free adaptive method with variable integral separated and proportion control

open access: yesInternational Journal of Advanced Robotic Systems, 2019
Based on model-free adaptive control theory, the heading control problem of unmanned surface vessels under uncertain influence is explored. Firstly, the problems of compact form dynamic linearization model-free adaptive control method applied to unmanned
Quanquan Jiang   +5 more
doaj   +1 more source

Target Tracking of an Underwater Glider Using a Small Unmanned Surface Vessel [PDF]

open access: yes, 2022
This paper proposes a methodology for target tracking of an underwater glider using an unmanned surface vessel (USV). The topside USV is assumed to have knowledge about the position of the underwater glider from an acoustic positioning system, which is ...
Alcocer, Alex   +3 more
core   +1 more source

Controlling-strategy design and working-principle demonstration of novel anti-winding marine propulsion

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2020
A traditional propeller can easily become entangled with floating objects while operating. In this paper, we present a newly developed Electromagnetic-valve-control-based Water-jet Propulsion System (ECWPS) for an unmanned surface cleaning vessel that ...
Yaojing Luo   +6 more
doaj   +1 more source

Methods for ensuring the navigation safety of unmanned surface vessel

open access: yesTechnology audit and production reserves, 2019
When creating unmanned surface vehicles (USV), special attention is paid to the safety of navigation. One of the main threats at sea is the threat of collision. Two main directions of ensuring the safety of navigation can be distinguished. The first is legal regulation and a number of international documents that are binding on all ship-owners.
Victor Nadtochii, Anatolii Nadtoshyi
openaire   +4 more sources

Transformer: A Multifunctional Fast Unmanned Aerial Vehicles–Unmanned Surface Vehicles Coupling System

open access: yesMachines, 2021
With the continuous development of the maritime economy, the maritime unmanned surface vehicles (USVs) and unmanned aerial vehicles (UAVs) have become important parts of the maritime transportation system.
Mingzhang Chen   +4 more
doaj   +1 more source

Design and implementation of unmanned surface vessel long-distance communication system

open access: yesDianxin kexue, 2021
Unmanned surface vessel (USV) long-distance communication has important use in marine survey operations.The design and equipment development of USV long-distance communication system were carried out from both shore-side communication equipment and boat ...
Xue LI   +5 more
doaj   +2 more sources

Autonomous Shallow Water Hydrographic Survey Using a Proto-Type USV

open access: yesJournal of Marine Science and Engineering, 2023
Maritime unmanned systems (MUS) have gained widespread usage in a diverse range of hydrographic survey activities, including harbor/port surveys, beach and coastline monitoring, environmental assessment, and military operations.
LaurenČ›iu-Florin Constantinoiu   +2 more
doaj   +1 more source

Parameter optimization of unmanned surface vessel propulsion motor based on BAS-PSO

open access: yesInternational Journal of Advanced Robotic Systems, 2022
Despite advances in modern control theory and artificial intelligence technology, current methods for tuning proportional-integral-derivative (PID) controller parameters based on the traditional particle swarm optimization (PSO) algorithm do not meet the
Li Bian   +4 more
doaj   +1 more source

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