2023 Fiscal Year Final Research Report
Construction of a Disaster Safety Information Network for Isolated Islands Using Shipboard Base Stations
| Project/Area Number |
21K04598
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 25030:Disaster prevention engineering-related
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| Research Institution | National Institute of Technology(KOSEN), Oshima College |
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Principal Investigator |
ASAKAWA TAKASHI 大島商船高等専門学校, 電子機械工学科, 教授 (80573386)
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| Co-Investigator(Kenkyū-buntansha) |
前畑 航平 大島商船高等専門学校, 商船学科, 講師 (10714850)
松原 貴史 大島商船高等専門学校, 電子機械工学科, 准教授 (80881234)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | IoT / 災害 / 安否確認 / 船舶基地局 / 離島 |
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| Outline of Final Research Achievements |
In recent years, disasters with black-out have occurred worldwide. Safety confirmation is a priority in times of disaster, and the theme of this study was the construction of a safety confirmation system using a Sub-GHz wireless network, focusing on isolated islands where the communication infrastructure is weak. In the construction of the system, a settlement configuration that adapts three transmission topologies was studied, and its usefulness was confirmed in a experiment. As a result, it was confirmed that the Meah type is most suitable for settlements that form urban areas, the Tree type centred on a parent unit that serves as a landmark for settlements with only houses, and the Peer-to-Peer type with a vessel radio station as the parent unit for settlements where it is difficult to install landmarks, and that classification of the area is necessary before a disaster occurs. It was confirmed that the classification of the area is necessary before the occurrence of a disaster.
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| Free Research Field |
防災工学関連，IoT，ヒューマンインタフェース
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| Academic Significance and Societal Importance of the Research Achievements |
ブラックアウトをともなう災害での安否確認では，通常の通信網の寸断が問題となっている。災害時の交通網の二重化と同様に，災害に備えた通信網の二重化や災害時専用の通信網の確立は社会的な課題である。特に，瀬戸内海は多くの離島が存在し，効率的な安否確認は重要である。都市部での通信網では，災害時にFree Wi-Fiを活用する事例があるが，集落の形成が都市部並み市街地から，過疎化が進んだ孤立した数戸のみの集落に対応できる通信網の構築には船舶基地局の活用が有用であり，本研究ではSub-GHz帯無線によるシステム構築に関する研究は重要である。
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