Gas SCADA System Analysis And Construction

In the context of our country's efforts to develop green energy resources, transmission and distribution systems expand with the scale of urban construction and have become increasingly complex. Particularly in large cities, SCAAD system in the gas industry has increasingly attracted social concerns.On the basis of full analysis of current situation and future trends of similar systems at home and abroad, combined with the current situation of roughness gas SCADA, first of all we get the needs analysis for the system: through communication with users we obtain an overview of system functions, and then refine the system description of the functional requirements. Using the Unified Modeling Language UML, we complete the analysis and modeling of the system and design the system's main use case diagrams and sequence diagram, thus the system's non-functional requirements. Then comes the system design: by comparing the B / S and C / S model's advantages and disadvantages, combined with the needs of the system architecture and then through the comparison of the two major development platforms we determine the development platform; give the overall system functional design and modularize the system; By studying various open source framework based on a detailed analysis and design of the framework of the system we established the system's main class diagram; showcase the system's activity diagram; each sub-module of the system was designed, respectively; we give the conceptual design of database systems and logic design. Finally, in the process of system implementation we use several techniques to achieve important and difficult ideas and proposed solutions, summarize the main characteristics of the system and shortcomings and propose future work direction and ultimate goal.This system uses a J2EE architecture, with high safety and operational efficiency; other techniques includes Struts, Hibernate, EXT, DWR and other open source framework and scripting language, and the MVC Struts framework is optimized, improving development efficiency and maintainability of the system.