Optimal path planning for a ship in coastal waters with deep Q network SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Lee, Hyeong-Tak | - |
dc.contributor.author | Kim, Min Kyu | - |
dc.date.accessioned | 2024-05-22T00:50:00Z | - |
dc.date.available | 2024-05-22T00:50:00Z | - |
dc.date.created | 2024-05-20 | - |
dc.date.issued | 2024-09 | - |
dc.identifier.issn | 0029-8018 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/45563 | - |
dc.description.abstract | With the development of autonomous ships, complete automation of passage planning has become an imminent priority. However, existing A* algorithms have the disadvantage of generating paths close to land because they prioritize minimizing the navigation distance. Therefore, this study proposes a method based on a deep Q network to effectively implement reward-and-penalty strategies considering required navigation areas and non-navigable areas throughout the port-to-port distance. First, the Busan and Gwangyang Ports were selected as the target areas and a container ship was selected as the target ship. Initially, non-navigable and reward areas were designated based on the water depth and electronic navigational chart information. Thereafter, we conducted experiments using algorithms in three types of environments: normal conditions, turbulent weather, and obstacle-involved environments. Furthermore, we employed the Douglas–Peucker algorithm to eliminate excessive waypoints. Experimental results demonstrated that the path planning of a ship obtained using a deep Q network involved more efficient and safer decisions for ship navigation. Furthermore, the navigation distance was reduced by 1.77% compared to the passage plan used by actual ships. The proposed approach is advantageous for automatically deriving the optimal mid-range path of ships and can thus contribute toward improving maritime safety and efficiency. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | Pergamon Press Ltd. | - |
dc.title | Optimal path planning for a ship in coastal waters with deep Q network | - |
dc.type | Article | - |
dc.citation.title | Ocean Engineering | - |
dc.citation.volume | 307 | - |
dc.contributor.alternativeName | 이형탁 | - |
dc.contributor.alternativeName | 김민규 | - |
dc.identifier.bibliographicCitation | Ocean Engineering, v.307 | - |
dc.identifier.doi | 10.1016/j.oceaneng.2024.118193 | - |
dc.identifier.scopusid | 2-s2.0-85193268745 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | ShipOptimal path planningCoastal watersDeep Q network | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |