The Study Of SCADA Database System Based On COM Component

Automation software are more and more applied in power system for the present, their function are more and more power, but the intricace relation inside the software lead to some result :it is difficult in asserting the software system,a litter modify of system may be affect the others apply, it is difficult to enlarge function , it will bring on the waste of money and time to user for iterate develop the same software.With the deveploment of computer technology in recent years, the component technology provide the method to resolve the problem,the IEC 61970 standard offers the interoperable standard for the standardization and the component modularization of the system also, the IEC 61970 standard offers a normal terrace for the user of system software to upgrade and transplantate the software system, the confer of the standard will promote the building of open system.On this basis a design scheme of the database for SCADA based on the component object model (COM) is presented, in which the content and background of IEC 61970 standard is introduced first, then some different component model are assayed , then a design scheme of the database for SCADA based on the component object model (COM) is presented, the foreground application of SCADA is connected with the database by components.The new model have some advantages:(l) system have disrelation with develop language ,the peculiarity of COM make the system fit in with different apply program developed with different language; (2) the system can be modified and upgraded easily by means of upgrading the component modules;(3) the system can be enlarged easily by means of adding the new component modules without quiet amendment in old system.The layout and develop of the component are accomplished with visual C++ at last, the component are also verified by the author.