Results 61 to 70 of about 1,860 (185)

Towards building a safety case for Marine Unmanned Surface Vehicles: a Bayesian perspective [PDF]

open access: yes, 2017
Marine Unmanned Surface Vehicles (MUSVs) are essential platforms for persistent and adaptable ocean monitoring and sampling. In order to operate these platforms in coastal areas or near oil and gas waters the MUSVs must meet statutorily and industry ...
Brito, Mario
core   +1 more source

Dual‐Layer Model Predictive Control for Multi‐Vessels Formation With Predefined‐Time and Collision‐Free Strategy

open access: yesIET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
A dual‐layer formation control with a predefined‐time and collision‐free strategy is studied in this work. Its upper layer utilises performance indicators, including tracking objectives to meet tracking control requirements. The lower layer tracks those trajectories to save computational and communication resources.
Han Xue, Kaibiao Sun
wiley   +1 more source

An Improved Model Predictive Control for Path-Following of USV Based on Global Course Constraint and Event-Triggered Mechanism

open access: yesIEEE Access, 2021
In this work we propose a solution to the Unmanned Surface Vessels (USV) path-following problem by suggesting an improved model predictive control (MPC) based on global course constraint (GCC) and event-triggered mechanism (ETM).
Baigang Zhao   +3 more
doaj   +1 more source

Study on key technologies for air–water surface collaboration of observation unmanned aircraft vehicle

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
To address the issues of short flight duration and the inability to carry high‐computation resources in small observation unmanned aerial vehicles (UAVs) due to limited energy and payload capacities, a deployment framework is proposed for an air–water surface collaborative observation system based on energy replenishment and computation offloading.
Dongying Feng   +8 more
wiley   +1 more source

PBM‐YOLO: A Performance Balanced Floating Garbage Detection Model for Water Surface Environments

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
We propose a lightweight detection model, PBM‐YOLO, for floating garbage detection on water surfaces. Based on YOLOv8n, the model introduces a feature extraction module (FSEM) that integrates frequency and spatial information to enhance object representation.
Yazheng Hou, Yuanhui Yu
wiley   +1 more source

Autonomous boat dynamics: how far away is simulation from the high sea? [PDF]

open access: yes, 2017
The study demonstrates the process of implementing a 3-degrees-of-freedom surge-sway-yaw boat dynamic model in a numeric simulation environment. Estimated environmental disturbance force introduced in the simulation provides a scope for determining boat ...
Huang, Ya, Ji, Ze
core   +1 more source

A MILP Model and Two‐Stage Heuristic Algorithm for Vehicle‐Assisted Multi‐Drone Inspection Routing Problem

open access: yesIET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
This paper presents a novel solution for the vehicle‐assisted multi‐drone inspection routing problem (VAMDIRP) using a mixed‐integer linear programming (MILP) model solvable by GUROBI for small instances and a two‐stage heuristic algorithm for larger cases.
Yuanqing Xia   +5 more
wiley   +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

State and Perspectives of Underwater Robotics - Role of Laboratory for Underwater Systems and Technologies [PDF]

open access: yes, 2016
The state and perspectives of underwater robotics is presented. The role and achievements of Laboratory for underwater systems and technologies (LABUST) in this domain is described.
Nikola Mišković, Zoran Vukić
core   +2 more sources

Ship Formation Control Using Nonlinear Model Predictive Control With Safe Speed Constraints and Tidal Elevation Variations

open access: yesIET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
1. An adaptive speed control method is proposed to execute the ship formation trajectory tracking task more efficiently and safely while entering port with tidal elevation variations. 2. A distributed ship formation controller based on the leader‒follower structure is designed to govern the coordinated motion of formation members more flexibly. 3.
Fanglie Wu   +4 more
wiley   +1 more source

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