Results 41 to 50 of about 6,421 (163)

Model Predictive Control for Aerial Collision Avoidance in Dynamic Environments [PDF]

2018 26th Mediterranean Conference on Control and Automation (MED), 2018
Autonomous navigation in unknown environments populated by humans and other robots is one of the main challenges when working with mobile robots. In this paper, we present a new approach to dynamic collision avoidance for multi-rotor unmanned aerial vehicles (UAVs). A new nonlinear model predictive control (NMPC) approach is proposed to safely navigate
Manuel Castillo-López, Seyed Amin Sajadi-Alamdari, Jose Luis Sanchez-Lopez, Miguel A. Olivares-Méndez, Holger Voos   +4 more
openaire   +1 more source

Unmanned Ship Collision Avoidance Action Plan Deduction Method under Man–Machine Interactive Negotiation in Collision Avoidance Scenarios

Journal of Marine Science and Engineering
With the development of artificial intelligence technology, the future water traffic environment will present a new pattern of coexistence of manned ships and unmanned ships, because unmanned ships are different from manned ships in situation ...
Jian Zheng, Baoshuo Liu, Yun Li, Changhai Huang   +3 more
doaj   +1 more source

COLREGs Experience-Based Real-Time Route Planning of Intelligent Ship

IEEE Access, 2023
The route planning of intelligent ship has been studied a lot, especially in the dynamic planning of collision avoidance, but it is still faced with some difficulties, such as complex model structure, poor compatibility of collision avoidance rules ...
Yu Peng
doaj   +1 more source

An Obstacle Avoidance Strategy for AUV Based on State-Tracking Collision Detection and Improved Artificial Potential Field

Journal of Marine Science and Engineering
This paper proposes a fusion algorithm based on state-tracking collision detection and the simulated annealing potential field (SCD-SAPF) to address the challenges of obstacle avoidance for autonomous underwater vehicles (AUVs) in dynamic environments ...
Yueming Li, Yuhao Ma, Jian Cao, Changyi Yin, Xiangyi Ma   +4 more
doaj   +1 more source

COLREGs-Compliant Unmanned Surface Vehicles Collision Avoidance Based on Multi-Objective Genetic Algorithm

IEEE Access, 2020
Autonomous ships or Unmanned Surface Vehicles (USV) collision avoidance and path planning problems among multi-vessels are investigated in this paper. Firstly, a modified fuzzy dynamic risk of collision model based on time and space collision risk index ...
Jun Ning, Hanmin Chen, Tieshan Li, Wei Li, Chunze Li   +4 more
doaj   +1 more source

Autonomous Obstacle Avoidance in Crowded Ocean Environment Based on COLREGs and POND

Journal of Marine Science and Engineering, 2023
In crowded waters with unknown obstacle motion information, traditional methods often fail to ensure safe and autonomous collision avoidance. To address the challenges of information acquisition and decision delay, this study proposes an optimized ...
Xiao Peng, Fenglei Han, Guihua Xia, Wangyuan Zhao, Yiming Zhao   +4 more
doaj   +1 more source

Research on Dynamic Collision Avoidance for UGVs Using the Fusion of VO and APF Algorithms

IEEE Access
Unmanned Ground Vehicles (UGVs), with their excellent maneuverability, have been widely utilized in various areas, including ground search and rescue, urban logistics, and public transportation.
Feng Xiong, Youbing Feng, Litao Cai
doaj   +1 more source

Dynamic collision avoidance method of unmanned sailboat based on improved fast-marching square method

Zhongguo Jianchuan Yanjiu
ObjectiveA local dynamic collision avoidance algorithm based on an improved fast-marching square (IFMS) method is proposed to solve the multi-vessel collision avoidance problem of unmanned sailboats in open water.
Wentao ZHAO, Longyue JING, Zhaoyang SUN, Yan HUANG, Hualong XIE   +4 more
doaj   +1 more source

Safety-Aware Perception for Autonomous Collision Avoidance in Dynamic Environments

IEEE Robotics and Automation Letters, 2023
Autonomous collision avoidance requires accurate environmental perception; however, flight systems often possess limited sensing capabilities with field-of-view (FOV) restrictions. To navigate this challenge, we present a safety-aware approach for online determination of the optimal sensor-pointing direction $ψ_\text{d}$ which utilizes control barrier ...
Ryan M. Bena, Chongbo Zhao, Quan Nguyen 0004   +2 more
openaire   +2 more sources

Radar-based maritime collision avoidance using dynamic window [PDF]

2018 IEEE Aerospace Conference, 2018
Collision avoidance systems are a key ingredient in developing autonomous surface vehicles (ASVs). Such systems require real-time information about the environment, which can be obtained from transponder-based systems or exteroceptive sensors located on the ASV. In this paper, we present a closed-loop collision avoidance (COLAV) system using a maritime
Eriksen, Bjørn-Olav Holtung, Wilthil, Erik Falmår, Flåten, Andreas Lindahl, Brekke, Edmund Førland, Breivik, Morten   +4 more
openaire   +2 more sources