Using active database techniques for real time engineering applications

摘要

An active database model for representing engineering design, simulation and monitoring applications is described. The physical aspects of these applications are modeled by structural objects. The functions of the application are modeled by functional objects. The interaction between structures and functions is modeled by interaction objects. Events relate structures and functions such that any state change will cause the functional model to compute the new consistent state of the application. Ways to model event correlation, event recall, and ways to define schemas for continuous systems are presented. A parallel computing architecture and a set of guidelines on task distributing that make the model applicable to real-time application are discussed.