scispace - formally typeset
Journal ArticleDOI

Velocity potential approach to path planning for avoiding moving obstacles

Sadao Akishita, +2 more
- 01 Jan 1992 - 
- Vol. 7, Iss: 5, pp 463-478
TLDR
This paper describes the theory and an experiment of a velocity potential approach to path planning and avoiding moving obstacles for an autonomous mobile robot by use of the Laplace potential and verifies the effectiveness of the navigation function for obstacle avoidance in a real world.
Abstract
This paper describes the theory and an experiment of a velocity potential approach to path planning and avoiding moving obstacles for an autonomous mobile robot by use of the Laplace potential. This new navigation function for path planning is feasible for guiding a mobile robot avoiding arbitrarily moving obstacles and reaching the goal in real time. The essential feature of the navigation function comes from the introduction of fluid flow dynamics into the path planning. The experiment is conducted to verify the effectiveness of the navigation function for obstacle avoidance in a real world. Two examples of the experiment are presented; first, the avoidance of a moving obstacle in parallel line-bounded space, and second, the avoidance of one moving obstacle and another standing obstacle. The robot can reach the goal after successfully avoiding the obstacles in these cases.

read more

Citations
More filters
Proceedings ArticleDOI

Vehicle motion planning using stream functions

TL;DR: Stream functions which satisfy Laplace's equation as a local-minima free method for producing potential-field based navigation functions in two dimensions generate smoother paths than previous methods, making them more suited to aircraft-like vehicles.
Journal ArticleDOI

Constrained motion control using vector potential fields

TL;DR: The proposed concept of navigation control along with the tools necessary for its construction achieve this goal and the most significant tool is the artificial vector potential field which shows a better ability to steer motion than does a scalar potential field.
Journal ArticleDOI

Real-time obstacle avoidance for multiple mobile robots

TL;DR: An efficient, simple, and practical real time path planning method for multiple mobile robots in dynamic environments is introduced to generate a more effective harmonic potential field for obstacle avoidance in dynamically changing environments.
Journal ArticleDOI

Motion planning in the presence of directional and regional avoidance constraints using nonlinear, anisotropic, harmonic potential fields: a physical metaphor

TL;DR: A new class of motion planners that can mark a constrained trajectory to a target zone in an environment that need not necessarily be a priori known is suggested, which has applications in traffic management and operations research among others.
Proceedings ArticleDOI

Motion planning in the presence of directional and obstacle avoidance constraints using nonlinear, anisotropic, harmonic potential fields

TL;DR: In this paper, an evolutionary, hybrid PDE-ODE controller is proposed to jointly condition a motion trajectory with both directional and region avoidance constraints, and mathematical proofs of both convergence and the ability to enforce directional and Region avoidance constraints are provided.
References
More filters
Journal ArticleDOI

Real-time obstacle avoidance for manipulators and mobile robots

TL;DR: This paper reformulated the manipulator con trol problem as direct control of manipulator motion in operational space—the space in which the task is originally described—rather than as control of the task's corresponding joint space motion obtained only after geometric and geometric transformation.
Journal ArticleDOI

A new feedback method for dynamic control of manipulators

TL;DR: A new approach to the dynamic control of manipulators is developed from the viewpoint of mechanics and it is shown that a linear feedback of generalized coordinates and their derivatives are effective for motion control in the large.
Journal ArticleDOI

Path-planning strategies for a point mobile automaton moving amidst unknown obstacles of arbitrary shape

TL;DR: A worst-case lower bound on the length of paths generated by any algorithm operating within the framework of the accepted model is developed; the bound is expressed in terms of the perimeters of the obstacles met by the automaton in the scene.
Journal ArticleDOI

A potential field approach to path planning

TL;DR: A path-planning algorithm for the classical mover's problem in three dimensions using a potential field representation of obstacles is presented and solves a much wider class of problems than other heuristic algorithms and at the same time runs much faster than exact algorithms.
Journal ArticleDOI

The Control of Natural Motion in Mechanical Systems

TL;DR: In this paper, a simple extension of Lord Kelvin's observation that energy decays in a dissipative mechanical system is proposed, which can be made essentially equivalent to that of much simpler gradient systems by the introduction of a "navigationfunction" in the role of an artificial field.
Related Papers (5)