Results 21 to 30 of about 12,508,722 (272)

Three-Dimensional Velocity Obstacle Method for UAV Deconflicting Maneuvers

open access: yesAIAA Guidance, Navigation, and Control Conference, 2015
Autonomous systems are required in order to enable UAVs to conduct self-separation and collision avoidance, especially for flights within the civil airspace system. A method called the Velocity Obstacle Method can provide the necessary situational awareness for UAVs in a dynamic environment, and can help to generate a deconflicting maneuver.This paper ...
Jenie, Y.I. (author)   +4 more
openaire   +4 more sources

A Velocity Obstacle-Based Real-Time Regional Ship Collision Risk Analysis Method [PDF]

open access: yesJournal of Marine Science and Engineering, 2021
Maritime accidents such as ship collisions pose continuous risks to individuals and society with due to their severe consequences on human life, economic and environmental losses, etc.
Pengfei Chen, Mengxia Li, Junmin Mou
doaj   +2 more sources

Cooperative Obstacle Avoidance for Multiple UAVs Using Spline_VO Method

open access: yesSensors, 2022
In order to solve multiple unmanned aerial vehicle (UAV) dynamic collision avoidance, a cooperative obstacle avoidance algorithm considering UAV’s kinematic constraints has been developed.
Mingzhu Peng, Wei Meng
doaj   +2 more sources

Proactive Collision Avoidance for ASVs using A Dynamic Reciprocal Velocity Obstacles Method [PDF]

open access: yes2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2018
We propose a collision avoidance method that incorporates the interactive behavior of agents and is proactive in dealing with the uncertainty of the future behavior of obstacles. The proposed method considers interactions that will be experienced by an autonomous surface vessel (ASV) in an environment governed by the international regulations for ...
Kufoalor, D. Kwame Minde   +2 more
openaire   +4 more sources

Obstacle Avoidance Control of Multi-Parafoil Formation Based on Spatial Velocity Vector Method

open access: yesJournal of Aerospace Technology and Management
The obstacle avoidance flight of unmanned parafoil formations in complex terrains and under wind disturbances is essential for the success of airdrop missions.
Qi Chen   +4 more
doaj   +2 more sources

Intelligent Collision Avoidance Method for Ships Based on COLRGEs and Improved Velocity Obstacle Algorithm

open access: yesApplied Sciences, 2022
Collision prevention is critical for navigational safety at sea, which has developed rapidly in the past decade and attracted a lot of attention. In this article, an improved velocity obstacle (IVO) algorithm for intelligent collision avoidance of ocean ...
Xingya Zhao   +5 more
doaj   +2 more sources

Vehicle-aircraft conflict detection on the airport surface: an improved velocity obstacle method

open access: yesDigital Transportation and Safety
Airport surface operations involve a complex interplay between various vehicles and aircraft, making conflict detection a critical aspect of ensuring safety and efficiency.
Feixiang Zhou   +4 more
doaj   +2 more sources

Obstacle detection using thermal imaging sensors for large passenger airplane [PDF]

open access: yes, 2012
This thesis addresses the issue of ground collision in poor weather conditions. As bad weather is an adverse factor when airplanes are taxiing, an obstacle detection system based on thermal vision is proposed to enhance the awareness of pilots during ...
Shi, Jie
core   +6 more sources

An Obstacle Avoidance Method for Action Support 7-DOF Manipulators Using Impedance Control [PDF]

open access: yesJournal of Robotics, 2013
An obstacle avoidance method of action support 7-DOF manipulators is proposed in this paper. The manipulators are controlled with impedance control to follow user's motions. 7-DOF manipulators are able to avoid obstacles without changing the orbit of the
Masafumi Hamaguchi, Takao Taniguchi
doaj   +2 more sources

Application of Improved Blocked-Off Method to Simulate the Interacting Influences of Obstacle Shape and Wall Velocity on the Turbulent Mixed Convection Flow in a Trapezoidal Cavity [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2022
In the current research, interaction influences of obstacle shape and top wall velocity on the hydrothermal behaviours of the turbulent mixed convection flow in a trapezoidal cavity are numerically simulated.
Meysam Atashafrooz
doaj   +1 more source

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