碩士 / 國立清華大學 / 資訊工程學系 / 100 / In this thesis, we propose EcoSTS, a system for in-situ motion measurement with specific application
to motion tracking and simulation of coastal sediments. EcoSTS consists of a collection of EcoSSG
(smart sediment grains) as motion sensors and EcoSTS Commander for controlling them from a PC.
An EcoSSG is a gyro-free inertial measurement unit (GF-IMU) that measures the motion of its enclosure
in the form of a rock in response to wave forces, and it records the sensing data in its on-board
memory. Its enclosure measures 4-cm in diameter and is made of ceramic material whose density resembles
that of sand. EcoSTS Commander supports data transfer wirelessly from the EcoSSGs to the
PC and data post-analysis. We implement wireless reprogramming for firmware update and battery
charging wirelessly through the enclosure. In addition, we include a magnetic switch to turn on or off
the EcoSSG without contact. EcoSTS has been tested by our collaborators in Wave Research Lab in
Oregon, USA. Experimental results validate the ability to track the motion of sediments with high accuracy.
We expect EcoSTS to be able to help researchers in fluidic dynamics and coastal engineering
confirm their models of sediment motion underwater for the purpose of predicting coastline evolution
and object motion in water in general.
| Identifer | oai:union.ndltd.org:TW/100NTHU5392118 |
| Date | January 2012 |
| Creators | Gao, Yu-Min, 高裕閔 |
| Contributors | Chou, Pai H., 周百祥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | en_US |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 63 |
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