Results 241 to 250 of about 17,478 (257)

Impact of a high-velocity drop on an obstacle

Technical Physics, 2000
Processes arising when a high-velocity liquid drop strikes a rigid obstacle or a liquid layer were investigated using numerical simulation. The flow pattern being formed features a complicated interaction of compression shock and expansion waves between each other and with free surfaces, the initiation of a cumulative jet flow, and the formation of ...
A. V. Chizhov, A. A. Schmidt
openaire   +1 more source

The Extended Velocity Obstacle and applying ORCA in the real world

2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
We describe the National Museum of Mathematics's Robot Swarm exhibit and our approach for achieving a reliable system for collision avoidance. The Robot Swarm exhibit allows visitors to program behaviors and interact with a “swarm” of small robots.
Amichai Levy, Chris Keitel, Sam Engel, James McLurkin   +3 more
openaire   +1 more source

Maintaining team coherence under the velocity obstacle framework

International Joint Conference on Autonomous Agents and Multiagent Systems, 2012
Many multi-agent applications may involve a notion of spatial coherence. For instance, simulations of virtual agents often need to model a coherent group or crowd. Alternatively, robots may prefer to stay within a pre-specified communication range.
Andrew Kimmel, Andrew Dobson, Kostas E. Bekris   +2 more
openaire   +2 more sources

A velocity obstacles approach for autonomous landing and teleoperated robots

Autonomous Robots, 2019
Velocity obstacles (VO) are one of the most successful methods to compute collision-free trajectory for multi-agent systems. VO provide for each autonomous robot the set of velocities that avoids collisions with other robots (sharing or not the same motion policy) and with moving or static obstacles in the environment.
Battisti, Thomas, Muradore, Riccardo
openaire   +1 more source

Model Predictive Obstacle Avoidance Control Suppressing Expectation of Relative Velocity against Obstacles

2019 IEEE Conference on Control Technology and Applications (CCTA), 2019
In this paper, we propose a vehicle controller which attains practical obstacle avoidance while suppressing relative velocity against moving obstacles with uncertainty. For safety locomotion, obstacle avoidance is important but the observed position of obstacles are usually contaminated by noise while their motion inevitably possesses uncertainty ...
Koji Shibata, Kenichiro Nonaka, Kazuma Sekiguchi   +2 more
openaire   +1 more source

Velocity obstacle-based trajectory planner for anthropomorphic arms

European Journal of Control
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vesentini, Federico, Piccinelli, Nicola, Muradore, Riccardo   +2 more
openaire   +1 more source

Pedestrian velocity obstacles: pedestrian simulation through reasoning in velocity space

2014
We live in a populous world. Furthermore, as social animals, we participate in activities which draw us together into shared spaces -- office buildings, city sidewalks, parks, events (e.g., religious, sporting, or political), etc. Models that can predict how crowds of humans behave in such settings would be valuable in allowing us to analyze the ...
openaire   +1 more source

Vision-based avoidance of obstacles with unknown constant velocity

Proceedings of the 2010 American Control Conference, 2010
This paper discusses vision-based avoidance of obstacles with unknown sizes and unknown constant velocities for four-wheel nonholonomic robots. The robot is equipped with an inertial measurement unit that provides measurements of the robot's position and velocity, and a monocular camera that detects the obstacles.
openaire   +1 more source

USV Dynamic Accurate Obstacle Avoidance Based on Improved Velocity Obstacle Method

Electronics (Switzerland), 2022
Zhou Hao
exaly  

Ship collision candidate detection method: A velocity obstacle approach

Ocean Engineering, 2018
Pengfei Chen, Yamin Huang, Junmin Mou
exaly