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Research on the dynamic ship domain based on the ship navigator's state
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Dongqin LIU, Zhongyi ZHENG, Sen QIAO
Navigation of China | 2025, 48(1) : 43 - 49
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Navigation of China | 2025, 48(1): 43-49
• Marine Traffic Safety •
Research on the dynamic ship domain based on the ship navigator's state
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Dongqin LIU, Zhongyi ZHENG, Sen QIAO
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  • Navigation College, Dalian Maritime University, Dalian 116026, China
Published: 2025-03-25 doi: 10.3969/j.issn.1000-4653.2025.01.006
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To address the issues of the analytical-based FQSD (Fuzzy Quaternion Ship Domain) model, such as the difficulty in defining its boundary, insufficient consideration of influencing factors, and challenges in practical application, this paper incorporates the human factor of ship navigator and establishes a DQSD (Dynamic Quaternion Ship Domain) based on the ship navigator's state to enhance the analytical-based fuzzy quaternion ship domain. The shape parameter K value of the fuzzy quaternion ship domain is calculated according to the ship navigator's state, and the dynamic ship domain model under different ship navigator states is obtained through computer simulation. The results show that the shape and area of the ship domain dynamically change under different driving states. When the ship navigator's state is excellent, the ship domain shape is an irregular rhombus, and the domain area is the smallest. When the ship navigator's state is poor, the ship domain shape is approximately rectangular, and the domain area is the largest. Compared with the traditional analysis-based ship domain, the proposed model determines the fuzzy boundary of the ship domain according to the ship navigator's state, making the dynamic ship domain more flexible and adaptable.

fuzzy quaternion ship domain  /  the reliability of ship navigator's state  /  ship navigator's state  /  dynamic quaternion ship domain
Dongqin LIU, Zhongyi ZHENG, Sen QIAO. Research on the dynamic ship domain based on the ship navigator's state[J]. Navigation of China, 2025 , 48 (1) : 43 -49 . DOI: 10.3969/j.issn.1000-4653.2025.01.006
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Year 2025 volume 48 Issue 1
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doi: 10.3969/j.issn.1000-4653.2025.01.006
  • Receive Date：2023-10-06
  • Online Date：2026-03-17
  • Published：2025-03-25
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  • Received：2023-10-06
Affiliations
    Navigation College, Dalian Maritime University, Dalian 116026, China
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红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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