| Project/Area Number |
06558057
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Natural disaster science
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| Research Institution | GIFU UNIVERSITY (1995)
Kyoto University (1994) |
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Principal Investigator |
FUJITA Yuichiro Gifu University, Dept.of Civil Engg., Professor, 工学部, 教授 (90027285)
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| Co-Investigator(Kenkyū-buntansha) |
KANDA Keiichi Akashi College of Technology, Dept of Civil Engg., Lecturer, 講師 (60214722)
SHIMOJIMA Eiichi Daido Institute of Technology, Dept.of Civil Engg., Professor, 工学部, 教授 (80027276)
SAWAI Kenji Setsunan University, Dept.of Civil Engg., Professor, 工学部, 教授 (70109073)
MURAMOTO Yoshio Kyoto University, Dept.of Civil Engg., Professor, 工学部, 教授 (50027223)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1995: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1994: ¥5,000,000 (Direct Cost: ¥5,000,000)
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| Keywords | observation capsule / flood observations / field observations / observation system / sediment transport / hydraulic measurement / ラジオコントロール / 移動体テレ-メータ |
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| Research Abstract |
After a brief review on spatially continuous observation of flood flows, advantages of an observation system of flood phenomena using a measurement capsule which is conveyed downstream with flood flow and collected after the measurement of a certain reach of a river.
Improvement of an existing measurement capsule has been discussed and problems were clarified to be steering and handling of the capsule, positioning and controlling of the capsule, and collection and transfer of measured data. A driving unit of the capsule is replaced by a radio control device to promote its steering property for collection after measurement.
In order to determine the capsule position, a simplified differential GPS (Global Positioning System) was introduced and tested in a river reach. This system proved to produce a fairly high accuracy.
For the data collection, a wireless system of specified low power was tried to weave limitations of the Wireless Telegraphy Act. This system was concluded to be useful for controlling the capsule and measurement instruments in it. An existing moving telemetry system proved to be rather inconvenient to such a simple observation system with the capsule.
A preparation for field observation in the Manganji River, a tributary of the Kako River was reported but observation have, unfortunately, not been carried out their in the term.
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