基於開放式SOA架構之感測網監測系統設計與實作

隨著氣候變遷全球天然與人為災害頻生，使得災害監測日益受到重視，其中如何應用無線感測網路 (WSN)之感測網 (Sensor Web)應用模式技術進行監控感測災害的發生與預防，逐漸受到各方矚目，已成為重要的研究議題。在過去的相關研究中，大多著重於感測器網路賦能標準(Sensor Web Enablement, SWE)之制定與改良，然而針對如何有效的將動態橋接異質感測器與感測服務實現於各式異質感測平台，由於SWE標準中並未定義出感測封包數據與標準服務間的橋接機制。有鑑於此，本研究提出與設計一套基於開放式SOA架構之感測網監測系統，包含異質性感測網路層(Heterogeneous WSN Layer)、SWE服務層(SWE Service Layer)與應用層(Application Layer)，並於感測底層建置異質感測平台，包括MoteIV Tmote、Crossbow與Intel iMote2等平台，有效進行即時之微氣候資料偵測(如溫度、濕度與光照)，使不同感測器廠牌能協同運作。此外本論文以SWE服務層運用開放式地理資訊系統協會 (Open Geospatial Consortium, OGC)所提出之SWE標準做為參考依據，並結合服務導向架構 (Service Oriented Architecture, SOA)與工廠方法模式 (Factory Method Pattern)設計出具彈性之多重感測資料配適機制，讓每個建置好的三大廠牌感測平台能被不同應用服務所使用，以隨插即用 (Plug-and-Play)方式將各異質感測資料與服務進行動態整合，以達到感測器與感測服務間的橋接彈性與交互操作性。

關鍵字

感測網；感測器網路賦能；服務導向架構；工廠方法模式

並列摘要

There are nature and man-made disasters to occur with climate changing, so disaster monitoring has been recognized recently. Therefore many experts design and develop Wireless Sensor Networks (WSNs) to monitor environment disaster. Using Sensor Web technology prevent disaster, it also has become an important research topic. This thesis proposes Sensor Web Monitoring System (SWMS) based on Open SOA Architecture, which is a 3-tier system framework composed of Heterogeneous WSN Layer, SWE Service Layer, and Application Layer. The thesis uses some sensor devices, such as MoteIV, Crossbow, and iMote2 Sensor Device, to collect some information that is data of temperature, humidity, and luminosity. Using TinyOS Serial Packet Protocol achieves heterogeneous packet format compatible mechanism, Sensor Web Service use Sensor Web Enablement standards as reference, and combined Service Oriented Architecture (SOA) with Factory Method Pattern to design Multiple Sensor Data Adapter Mechanism, so that each sensor platform can be used by building a best variety of different application. The paper initially sums up current progress in data of converting sensor network to a SWE-based format that is accessed by a SOS. An interoperability gap that is the space of sensor network and sensor service is identified to integrate the bridge between them flexibility and interoperability, and some system models presented which may lower the implementation barrier by coupling sensor system and SWE services more generically.

並列關鍵字

Sensor Web ； Sensor Web Enablement ； SOA ； Factory Method

參考文獻

[1] Chu. X., Open Sensor Web Architecture: Core Services, The University of Melbourne, 2005.

[3] Delin, K. A, “The Sensor Web: A Macro-Instrument for Coordinated Sensing,” Sensors, 2(7): pp.270-285, 2002.

[7] Fairgrieve, S.; Makuch, J.; Falke, S. PULSENet: An Implementation of Sensor Web Standards. In Proceedings of International Symposium on Collaborative Technologies and Systems, CTS 2009,Baltimore, MD, USA; IEEE: New York, NY, USA, 2009; pp. 64–75.

[8] Gibbons, P.; Karp, B.; Ke, Y.; Nath, S.; Seshan, S. Irisnet: An Architecture for a Worldwide Sensor Web. IEEE Pervasive Comput. 2003, 2, 22–33.

[12] Kansal, A.; Nath, S.; Liu, J.; Zhao, F. SenseWeb: An Infrastructure for Shared Sensing. IEEE MultiMedia 2007, 14, 8–13.

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基於開放式SOA架構之感測網監測系統設計與實作

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