Aiming at the defects exists in tradition relationship database real-time application of power system dispatcher training simulator(DTS), this paper analyzed the constitution of database system in DTS, brought forward real-time database model that composed by the combination of real-time EMS memory base and off-line ORACLE database. Meantime in order to enhance the access speed between EMS memory and database and reduce the utilization rate of CPU, we adopted DMA technique based on high-speed PCI bus to transmit datum. This paper applied the manner that combines both software and hardware techniques and designed proper DTS real-time database.
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