B / S Structure, Web Scada System Architecture

In this paper, we discuss the characteristic of SCADA system particularly, compare the SCADA system based on C/S structure and B/S structure, state the domestic and overseas development of SCADA system, and more, we discuss the SCADA system based on B/S structure detailedly. On this foundation and corresponding design principle, we state the software structure and elementary implementation of the system.The kernel content of the SCADA system based on B/S structure is discuss detailedly, such as the structure of the system, Field Surveillance Unit, Concentration Supervision Center, data transmission mode, and design of web communication mode.On the previous foundation, the background management structure is designed, such as the software structure of the background management, analysis and design of web communication, analysis and collection of monitor data, analysis and design of net- flux collection/charge-counting, design of report-query system, and web security surveillance sub-system.In the end of this paper, we give the system elementary implementation based on ASP, and point out the subsequence work—design of integrated development environment.