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論文名稱 Title |
水下工程場址之輪廓重建與評估技術 Mapping and Evaluation of Underwater Construction Site |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
86 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2016-07-26 |
繳交日期 Date of Submission |
2016-09-01 |
關鍵字 Keywords |
水下監測、單音束掃描式聲納系統、疊圖 Underwater monitor, Single-beam scanned sonar, Overlaying processing |
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統計 Statistics |
本論文已被瀏覽 5662 次,被下載 153 次 The thesis/dissertation has been browsed 5662 times, has been downloaded 153 times. |
中文摘要 |
單音束掃描式聲納系統在封閉場域及特定水域中,具有良好的水下目標物描繪與調查能力。不同於其他拖曳式或移動式聲納系統,掃描式聲納系統之設計理念在於進行水下現況之監測與細部資料收集,對於水下靜態目標物的現況描繪及尺度判讀是此項儀器之主要功能之一。其優點包括採定點式收集類光學解析度之聲學影像,以達到對於水下靜態目標物狀態及尺度的描繪,並可於短時間內進行大範圍的資料收集及解讀。藉由此儀器的作業方式,可達到水下工程位址細部描繪與分析的目的與避免人為作業的危險性。 本研究之主旨在於透過示範場域(中山大學內的景觀水池,長 20 公尺、寬 12 公尺、深 0.9 公尺)的調查與系統性資料處理流程,來建構水下工程位址的組成與現況資料。 透過本研究所使用之掃描式聲納系統與疊圖方法,可以有效的重新建構出水下場域結構圖,並再透過影像解析度的判讀,藉以定量化單一目標物之尺度,並合理解釋其現況。 以本示範場域為例,本區經調查確認後之目標物總計有:大型環狀物 3 個、小型環狀物5 個、不規則目標物 1 座、單點訊號 9 個、不明目標物 1 個、橋墩結構 1 組、階梯 4 階、邊界斜坡、長條狀目標物 4 條,本儀器可滿足水下資料收集與定量化評估之目的。研究成果將有助於溺水人員水下搜尋作業、水下工程結構體現況評估與檢驗作業、水下考古探測作業以及海底管線現況調查等領域之工作。 |
Abstract |
Single-beam, mechanically scanned imaging sonar is an effective system to survey and evaluate the objects in an enclosed or restricted underwater environment. Different from towed array sonar and ship mounted sonar systems, its main functions are to monitor the underwater stationary objects and collect quantitative information, such as dimensions and outer appearance features. Advantages of this sonar system include collecting acoustical images with quality and resolution comparable to optical images to describe the status of stationary objects, and shortening the time of collecting and interpreting images to avoid the danger imposed to human operators and increase work efficiency. In this study, we selected and surveyed the landscape pond in the campus of Sun Yat-sen University to establish the underwater contents of this site by systematic data processing. Compositions of the underwater field were established by the scanning sonar system and post overlaying processing procedure. In this demonstration field, underwater objects were detected include: 3 big circular objects, 5 small circular objects, 1 irregularly shaped object, 9 single-point objects, 1 unknown object, a bridge underwater structure, 4 stairs, slopes of the field boundary, and 4 striped objects. This study could benefit a variety of underwater activities, such as searching for drowning victims, inspecting underwater engineering objects, surveying for underwater archeological investigations as well as delineating underwater pipelines. |
目次 Table of Contents |
目錄 論文審定書.............................................................................................................................I 致謝....................................................................................................................................... II 摘要......................................................................................................................................III ABSTRACT.........................................................................................................................IV 目錄.......................................................................................................................................V 圖目錄................................................................................................................................ VII 表目錄...................................................................................................................................X 第一章 緒論....................................................................................................................1 1-1前言................................................................................................................................1 1-2研究動機與目的............................................................................................................2 1-3研究方法概述................................................................................................................2 1-4 章節架構說明...............................................................................................................3 第二章 文獻回顧............................................................................................................4 2-1應用聲學儀器於水下探測作業....................................................................................4 2-2以掃描式聲納影像進行水下目標物之分類與分析(田楷寅,2013).........................5 2-3本儀器所適合之水下場域調查可拓及之參考案例....................................................6 第三章 研究方法............................................................................................................9 3-1 掃描式聲納 MS1000 系統 ...........................................................................................9 3-2 聲納系統成像及作業原理.........................................................................................12 VI 3-3 影像收集與判讀.........................................................................................................20 3-4場域重建技術..............................................................................................................27 3-5小結..............................................................................................................................37 第四章 案例重建與評估分析......................................................................................38 4-1 基本資料收集.............................................................................................................41 4-2場域重建與評估分析..................................................................................................48 4-3繪圖軟體 Autocad 應用..............................................................................................59 4-4 中山水池調查結果....................................................................................................60 4-5水池目標物裸露驗證..................................................................................................62 第五章 結論與建議......................................................................................................67 5-1 成果討論.....................................................................................................................67 5-2 未來研究方向.............................................................................................................71 參考文獻..............................................................................................................................73 |
參考文獻 References |
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