ABSTRACT Path-planning is the key for marine rescue using unmanned surface vessel. Planning an efficient and safe path can significantly improve the efficiency of marine rescue, and existing path-planning algorithms are prone to collision and grounding with islands and shallows. To address this issue, this paper proposes a method for improving A* algorithm. First, global key nodes were extracted based on maritime map information using image processing techniques. Then, the global key nodes that can be directly reached in a straight line and meet safety threshold were screened as child nodes of current node to participate in the search. Finally, the path was planned by introducing the path danger value into the cost function of A* algorithm to consider the path cost and safety. Simulation results showed that the path planned by improved A* algorithm is safer and smoother than other paths, and the search time and path cost are optimized.
Read full abstract- All Solutions
Editage
One platform for all researcher needs
Paperpal
AI-powered academic writing assistant
R Discovery
Your #1 AI companion for literature search
Mind the Graph
AI tool for graphics, illustrations, and artwork
Unlock unlimited use of all AI tools with the Editage Plus membership.
Explore Editage Plus - Support
Overview
4681 Articles
Published in last 50 years
Related Topics
Articles published on Search Time
Authors
Select Authors
Journals
Select Journals
Duration
Select Duration
4640 Search results
Sort by Recency