設計與實作以感測器為中心的查詢機制

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姓名

康健庭(Jian-ting Kang) 查詢紙本館藏

畢業系所

資訊工程學系

論文名稱

設計與實作以感測器為中心的查詢機制
(Design and Implementation of a Sensor-Centric Query Mechanism)

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至系統瀏覽論文 ( 永不開放)

摘要(中)

無線感測網路(Wireless Sensor Network, WSN)技術被認為是未來新興科技中最重要的一項關鍵技術，透過感測器取得環境的監控資料，並進一步對這些資料進行分析與彙整，以達到環境監控的目的，提供未來災害發生預測與防護等。然而，現行的感測網路所提供的資訊查詢方式僅能針對感測器所產生的觀測資料(raw data)進行條件式查詢，無法提供貼近於一般使用者角度的觀測資訊，該觀測資訊大多需要透過多個觀測值進行一連串的數學運算所產生。本論文提出一個以感測器為中心的資訊查詢機制，讓使用者自訂出所需求的感測元件來表達查詢指令，並產生使用者所感興趣的資訊，而此資訊如同網路服務，除了可透過網際網路被存取外，更可以以組合流程(composite service)的概念來組合更多網際服務以提供更宏觀的資訊。

摘要(英)

This work is concerned with the application of wireless sensor network (WSN) technology to monitor physical or environmental conditions, such as temperature, vibration, water level, pressure. The event monitoring system needs to collect various real-time data from spatially distributed sensors and to obtain more information from real world events. In this work, we propose an information query mechanism which is developed based on Service-Oriented Architecture (SOA). It aims at generating more user-centric information by leveraging mathematical operations to compose and analyze those data gathered from each physical sensor.

關鍵字(中)

★ 查詢機制
★ 商業流程執行語言
★ 無線感測網路

關鍵字(英)

★ wireless sensor network
★ BPEL
★ query mechanism

論文目次

摘要 III
ABSTRACT IV
致謝 V
第一章、緒論 1
1.1 背景 1
1.2 動機 3
1.3 論文架構 4
第二章、背景知識 5
2.1 OGC-SWE (OPEN GEOSPATIAL CONSORTIUM, SENSOR WEB ENABLEMENT)之參考模式 5
2.2 服務導向計算 8
2.2.1 服務導向架構 8
2.2.2 WEB SERVICES 9
2.2.2.1 WSDL (WEB SERVICE DESCRIPTION LANGUAGE) 10
2.2.2.2 SOAP (SIMPLE OBJECT ACCESS PROTOCOL) 11
2.2.2.3 UDDI (UNIVERSAL DESCRIPTION, DISCOVERY AND INTEGRATION) 12
2.3 WS-BPEL 13
2.4 MATHML 16
2.5 HADOOP雲端運算技術 20
第三章、查詢處理系統設計與實作 23
3.1系統概觀 24
3.2 感測器聚合器(SENSOR AGGREGATOR) 29
3.2.1 基於MATHML之數學表示 (EMATHML) 29
3.2.2 感測器聚合器架構 31
3.3 OGC-SWE相關之BPEL擴充 33
3.3.1 SENSOR ACTIVITY 33
3.3.2 SENSORAGGREGATOR ACTIVITY 35
3.3.3 數學函數相關之BPEL擴充 37
3.4 系統設計與實作 39
3.4.1 VSOS管理系統 39
3.4.1.1 VSOS服務產生器 (SERVICE GENERATING ENGINE) 40
3.4.1.2 感測頻率時程規劃 (SCHEDULE PLANNER) 40
3.4.2 虛擬感測器觀測服務 (VSOS) 41
3.4.3 HADOOP雲端運算服務 43
第四章、案例探討 45
4.1 QUERY PROCESS SYSTEM―河川水位警戒資訊 45
4.2 連續性查詢 (CONTINUOUS QUERY) 48
第五章、結論 50
5.1 貢獻 50
5.2 未來研究 51
參考文獻 52

參考文獻

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指導教授

李允中(Jonathon Lee)

審核日期

2011-7-27

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