Research Of SCADA System Based On Distributed Application

The present situation of the development of telecontrol technique for powernetwork dispatching system in China is summarized and the application ofIEC60870-5-104(for short IEC104) transmission protocol in power network datatransmission is expounded. The design plan of the software for dispatching automationsystem are emphatically researched, the communication programming of IEC104 isresearched, and the design of communication program is finished;moreover, themethods of displaying ,accessing and utilizing data acquisition are researched.At present, the dispatching automation system is seldom involved in application forbeing open, even is secret to users. In this thesis, the power dispatching softwarearchitecture is proposed;the concept of message queue middleware is brought forward,the system designs and the detailed realization of Message-Oriented Middleware isdiscussed. The communication mode of Subscribe/ Publish is achieved.