Results 41 to 50 of about 3,532,261 (141)

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

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

A Collision Avoidance Method for Intelligent Ship Based on the Improved Bacterial Foraging Optimization Algorithm

Journal of Robotics, 2021
The bacterial foraging optimization algorithm (BFOA) is an intelligent population optimization algorithm widely used in collision avoidance problems; however, the BFOA is inappropriate for the intelligent ship collision avoidance planning with high ...
Xingzhong Wang, Xinghua Kou, Jinfeng Huang, Xianchun Tan   +3 more
doaj   +1 more source

Dynamic game collision avoidance decision-making for autonomous and manned ships

Zhongguo Jianchuan Yanjiu
ObjectiveThis study investigates the interactive collision avoidance （CA） problem of autonomous and manned ships in mixed navigation scenarios in order to achieve the efficient collision avoidance and safe navigation of ships.
Hao CUI, Xinyu ZHANG, Jing WANG, Chengbo WANG, Kangjie ZHENG   +4 more
doaj   +1 more source

Research on Detection and Alarm of Air Threat Situation for UAV Collision Avoidance

Hangkong gongcheng jinzhan, 2019
The detection and alarm of air threat situation is the key to the early warning for UAV flight collision avoidance. For this reason, a detection and alarm method of air threat situation based on track prediction is proposed for UAV collision avoidance ...
Wang Qian, Zhang Baohua, Zhou Zhijing, Sun Jingjuan   +3 more
doaj   +1 more source

IoT-based V2X communication for real-time dynamic obstacle prediction and adaptive RRT path planning

Alexandria Engineering Journal
This paper proposes an IoT-based vehicle–road cooperative communication system to address real-time collision avoidance and path planning challenges in dynamic traffic environments. Traditional path planning methods often struggle with dynamic obstacles,
Yang Zhang
doaj   +1 more source

Adaptive Formation Control and Collision Avoidance Using a Priority Strategy for Nonholonomic Mobile Robots

International Journal of Advanced Robotic Systems, 2013
This paper presents four novel collision avoidance processes for nonholonomic mobile robots to generate effective collision-free trajectories when forming and maintaining a formation.
Yanyan Dai, Kyung Sik Choi, Suk Gyu Lee
doaj   +1 more source

Completion of Collision Avoidance Control Algorithm for Multicopters Based on Geometrical Constraints

IEEE Access, 2018
The collision avoidance problem for multicopters is solved based on the combination of geometrical constraints and kinematics equation through this paper.
Ha Le Nhu Ngoc Thanh, Sung Kyung Hong
doaj   +1 more source

Collision Avoidance of Podded Propulsion Unmanned Surface Vehicle With COLREGs Compliance and Its Modeling and Identification

IEEE Access, 2018
With the development of marine technology, the research of unmanned surface vehicles (USVs) has received wide attention from the world. Designing effective collision avoidance algorithm in dynamic sea environment is necessary for the navigation of USVs ...
Xiaojie Sun, Guofeng Wang, Yunsheng Fan, Dongdong Mu, Bingbing Qiu   +4 more
doaj   +1 more source

Vehicle Active Collision Avoidance Considering Road Adhesion Coefficient [PDF]

Zhengzhou Daxue xuebao. Gongxue ban
To improve the effectiveness of the active collision avoidance strategy, a risk assessment method for collision time margin was proposed. The three-degree-of-freedom vehicle model and the Dugoff tire model were established, and the state parameters ...
LIN Guoqing, XIONG Haocheng, XU Hao, QIN Yu, GUO Yan   +4 more
doaj   +1 more source