| This thesis firstly introduces the function and position of the sub control center in the distribution automation system. At the basis of that, analyzes present research of the sub control center at home and abroad, brings forward new generation design request aiming at the defects of the applied sub control center at present. According to the design request, the hardware system structure for reasonable sub control center is worked out ,and the real-time operating system is chosen, for which suits the sub control center's function demand; meanwhile synthetically analyzes the application characteristics of the sub control center according to the function and position in the electric automation system, together with the function demand and application target of the applied software. Then the sub control center application system is designed out by the UML design method. And the object model of the sub control center is established, with dynamic process in its key model.According to the system achieved by the design scheme the function target comes to the design request completely, which verifies that the design is feasible and effective .The and effective. The advantages of the design scheme are as follows:(1) Choose to use the Windows CE embedded operating system, comparing to other unisex-type operating system this type need less hardware and resourcesin the operating can be cut conveniently, which make the system have real-time quality and the movement movement more stable dependable.(2) Design of the system software adopts UML general use model technique, this guarantees the software structure reasonable, enhances the persistence and protection of the system.(3) Channels and rules in the system adopt dynamic binding mechanism to make the system flexible.(4) The adoption multi-threading model increases the movement efficiency of the system.(5) Adopt the embedded system to construct sub control center, system structure tightly packed, the cost declines consumedly. |