Results 231 to 240 of about 17,478 (257)
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Velocity obstacles for Dubins-like mobile robots
2017 25th Mediterranean Conference on Control and Automation (MED), 2017The paper deals with the motion planning problem for Dubins-like mobile robots in dynamic environment. Velocity obstacles (VO) method and its non-linear version (NLVO) can be applied for planning a collision-free trajectory for a robot moving among static and dynamic obstacles, whose positions and velocity vectors are supposed to be known.
Emese Gincsainé Szádeczky-Kardoss +1 more
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Avoiding moving obstacles: the forbidden velocity map
2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009Robotic obstacle avoidance in cluttered and dense environments is an important issue in robotic navigation. Over the past few years a number of techniques has been proposed to deal with safe navigation among obstacles in unknown scenarios. Unfortunately many of these methods do not consider obstacle velocities, which can rise some serious questions ...
Bruno D. Damas, José Santos-Victor
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Dynamic Obstacle Avoidance of Mobile Robot Based on Adaptive Velocity Obstacle
2021 36th Youth Academic Annual Conference of Chinese Association of Automation (YAC), 2021The Velocity Obstacle (VO) provides a good solution for mobile robot collision avoidance problem. VO divides the velocity region into collision zone and non-collision zone. The robot can avoid collisions by selecting the velocity in the non-collision zone.
Mengyuan Gu, Yunzhi Huang
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Improving velocity obstacle approach for obstacle avoidance in indoor environments
2014 UKACC International Conference on Control (CONTROL), 2014The velocity obstacle approach (VO) is considered an easy and simple method to avoid moving obstacles, where the collision cone principle is used to detect the collision situation between two circular-shaped objects. The VO approach has two challenges when applied in indoor environments. The first challenge is to extract collision cones of non-circular
Ahmad Alsaab, Robert Bicker
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The relationship between obstacle height and center of pressure velocity during obstacle crossing
Gait & Posture, 2008This study was performed to investigate the effect of obstacle height on the COP velocity when negotiating obstacles. Seven healthy female subjects were instructed to perform unobstructed level walking and to step over obstacles corresponding to 5%, 10%, and 15% of their height. The Parotec system was used to collect plantar foot pressure data.
Yun, Wang, Kazuhiko, Watanabe
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Motion Planning in Dynamic Environments Using Velocity Obstacles
The International Journal of Robotics Research, 1998This paper presents a method for robot motion planning in dynamic environments. It consists of selecting avoidance maneuvers to avoid static and moving obstacles in the velocity space, based on the cur rent positions and velocities of the robot and obstacles.
FIORINI, Paolo, Shiller Z.
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The curvature-velocity method for local obstacle avoidance
Proceedings of IEEE International Conference on Robotics and Automation, 2002We present a new method for local obstacle avoidance by indoor mobile robots that formulates the problem as one of constrained optimization in velocity space. Constraints that stem from physical limitations (velocities and accelerations) and the environment (the configuration of obstacles) are placed on the translational and rotational velocities of ...
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Safe maritime navigation with COLREGS using Velocity Obstacles
2011 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2011This paper presents a motion planning algorithm for Unmanned Surface Vehicles (USVs) to navigate safely in dynamic, cluttered environments. The proposed algorithm not only addresses Hazard Avoidance (HA) for stationary and moving hazards but also applies the International Regulations for Preventing Collisions at Sea (known as COLREGS).
Kuwata, Yoshiaki +3 more
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Traffic Regulation Velocity Obstacles method
2019 20th International Carpathian Control Conference (ICCC), 2019The goal of this paper is to show a new concept of the reactive motion planning algorithms for mobile robots in dynamic environment using the main rules of the Traffic Regulation. At the presented solution the algorithm uses the velocity vectors and positions of the obstacles and the robot so the Velocity Obstacles (VO) method seems to be a good choice
Zoltan Gyenes +1 more
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