現場監控之分散式軟體平台分析與設計

Abstract

本論文主要針對分散式資料交換系統的軟體設計與實作問題，提出一 個實際的解決方法。首先我們回顧電腦整合製造系統，說明出分散式資料 交換機制在整個系統中的重要性。過去對於這個分散式資料交換機制的軟 體開發，都顯得太過複雜，系統的設計過程與實作過程出現很大程度的落 差。 我們提出以主題為本位的定址模式來作為克服上述複雜性與落差 的一種重要手段。在這種以主題為本位的定址模式運作下，系統中的各個 模組能夠透明化地進行資料交換，不受網路與其設定的約束。除此之外， 一個結合元件導向設計技術的軟體開發工具將會被用來快速開發系統模組 。這個工具的最大特點就是它巧妙地利用主題名稱來對一般化的元件加以 整合，使它們變成一個完全量身訂造的客製化模組。結果，分散式資料交 換系統的軟體開發複雜性能大大降低。 In this thesis, we propose a practical design and implement method to build the distributed data link for a shop floor control system. First, the CIM is reviewed and the distributed data exchange mechanism is introduced. Owing to the complexity of the software architecture, the gap between the design and implementation stage is often quite large. The subject-based addressing mode is proposed. Based on this method, the modules among the system can exchange their data transparently and network independently. Moreover, a development tool and the component-oriented design method will be used in order to develop the system modules rapidly. The key contribution of this tool is to integrate general software components into a customized module by using the subject name as the glue. As a result, the complexity of the software development in the distributed data exchange system is highly reduced.