研究生: |
陳彥皓 Yen-Hao Chen |
---|---|
論文名稱: |
易延展監測資訊系統架構暨其可靠度評估 A easily scalable Monitoring Information System Architecture and its Reliability Assessment |
指導教授: |
謝佑明
Yo-Ming Hsieh |
口試委員: |
廖國偉
Guo-Wei Liao 楊元森 Yuan-Sen Yang |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 153 |
中文關鍵詞: | 監測資訊系統 、系統可靠度 、可靠度評估 、網路式服務 |
外文關鍵詞: | Monitoring information system, system reliability, reliability evaluation, web service |
相關次數: | 點閱:242 下載:1 |
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本研究延續黃禹澄(2007)之研究成果運用分散式運算技術並以服務導向式架構建構監測資訊系統,將其加以拆分並增加專案服務以及警示服務。此新開發的架構不但延續了之前架構下之高擴充性與可靠性,並更進一步地增加了佈署的彈性與靈活度,使資源能更有效的利用,且各服務之職責劃分更為清楚。而有別於前人使用SOAP標準建立網路式服務,本研究採用REST風格之網路式服務,並以JSON為資料格式,以減輕電腦伺服器之負擔。
除建議新的監測系統架構外,本研究就三方面探討本研究所開發資訊系統之可靠度:1) 硬體與網路之系統可靠度對於監測資料傳遞之影響、2) 保存資料之可靠度、以及3) 系統運作時負載下之可靠度。其中監測資料傳遞之可靠度評估結果回饋至監測資訊系統運作機制之設計,使所設計之監測資訊系統可靠度更為提升。而資料保存以及系統運作時考慮負載之可靠度評估,則可建議監測資訊系統之系統管理員現地服務與資料服務之間調配的組合管理。
This work extends the former study by Hung (2007) that uses distributed computing technique and service-oriented architecture to construct a monitoring information system, and further adds project services and alarm services. This newly developed system architecture not only inherits the extensibility and scalability of the former architecture, but also increases the flexibility of deployment and the effectiveness of resource utilization. In addition, responsibilities of each service are further clarified. A prototype system based on the new architecture is developed to verify its feasibility. The new prototype system uses REST style web service and JSON as its data exchange format. The reason of using these new styles and standards over former studies using SOAP standard is to reduce the load of computer services to construct lightweight information systems.
Preliminary evaluations methods are also proposed to study the reliability of the proposed information system in three aspects: 1) data transmission affected by uncertainties in hardware and networking, 2) data retention reliability, and 3) system reliability under load. The data-transmission reliability-assessment contributes to the modified design of the data transmission mechanism that improves the system reliability. Both data retention reliability and system reliability under load can help advice system administrators of the information system on how to configure the coordination between data services and field services.
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