Results 21 to 30 of about 500,755 (239)

Early Warning Method and Model of Inland Ship Collision Risk Based on Coordinated Collision-Avoidance Actions

open access: yesJournal of Advanced Transportation, 2020
To reduce the occurrence of ship collisions, immediate danger, and close-quarters situations in narrow inland waterways, a step-by-step early warning system for ship collision-avoidance actions was developed, along with an early warning method and model ...
Zhiyou Cheng, Yaling Li, Bing Wu
doaj   +1 more source

The Machine Learning Method of PIDVCA [PDF]

open access: yesTransNav, 2020
Building a dynamic collision knowledge base of self-learning is one of the core contents of implementing "personified intelligence" in Personifying Intelligent Decision-making for Vessel Collision Avoidance (short for PIDVCA).
Li Na Li, Xinghua Wang, Guoquan Chen
doaj   +1 more source

Collision Avoidance Strategy for the Autocrane

open access: yesSensors, 2021
The collision between the boom of the autocrane and the obstacle may cause serious equipment damages or casualties. With the development of 6G technology, data between multiple autocranes could be shared in real time, which makes it possible to finely control the autocranes.
Dong Wang 0036   +4 more
openaire   +3 more sources

A COLREGs-Compliant Collision Avoidance Decision Approach Based on Deep Reinforcement Learning

open access: yesJournal of Marine Science and Engineering, 2022
It is crucial to develop a COLREGs-compliant intelligent collision avoidance system for the safety of unmanned ships during navigation. This paper proposes a collision avoidance decision approach based on the deep reinforcement learning method.
Weiqiang Wang   +4 more
doaj   +1 more source

Optimization-Based Collision Avoidance [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2021
This paper presents a novel method for reformulating non-differentiable collision avoidance constraints into smooth nonlinear constraints using strong duality of convex optimization. We focus on a controlled object whose goal is to avoid obstacles while moving in an n-dimensional space.
Xiaojing Zhang 0001   +2 more
openaire   +3 more sources

Ship Collision Avoidance Decision Model and Simulation Based on Collision Circle [PDF]

open access: yesTransNav, 2019
In order to give consideration to both comprehensive evaluation and efficient decision-making in collision avoidance decision-making process, a collision avoidance decision-making model based on collision circle is proposed by introducing the concept of ...
Jifeng Zhang, Qinyou Hu, Bingjun Liao
doaj   +1 more source

A review of essential technologies for collision avoidance assistance systems

open access: yesAdvances in Mechanical Engineering, 2017
Compared with automatic collision avoidance systems, collision avoidance assistance systems have attracted more research interest because they help avoid collisions in near-accident situations.
Zhiguo Zhao   +4 more
doaj   +1 more source

Collision-Avoidance Decision System for Inland Ships Based on Velocity Obstacle Algorithms

open access: yesJournal of Marine Science and Engineering, 2022
Due to the complex hydrology and narrow channels of inland rivers, ship collision accidents occur frequently. The traditional collision-avoidance algorithms are often aimed at sea areas, and not often at inland rivers. To solve the problem of inland-ship
Guangyu Zhang   +4 more
doaj   +1 more source

A method for unmanned vessel autonomous collision avoidance based on model predictive control

open access: yesSystems Science & Control Engineering, 2021
Aiming at the problem of autonomous collision avoidance of unmanned vessels in the case of multiple vessels encountering at sea, this paper proposes a method for collision avoidance of vessels in open water based on the Mathematical Model Group (MMG ...
Shengwei Xing, Hongwei Xie, Wenjun Zhang
doaj   +1 more source

Collision Avoidance Path Planning for Vehicles Combining MPC and CACC Controllers

open access: yesIEEE Access, 2023
The vehicle collision avoidance system has problems such as poor emergency collision avoidance ability and susceptibility to noise interference. Therefore, this study adopts a vehicle tracking model that integrates dynamic constraints and a two car ...
Qingde Zeng, Bin Liu
doaj   +1 more source

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