A Dynamic Process Simulator for Stochastically Defined Systems

The Stochastic Dynamic Simulator (SDS) is a general purpose process simulator that allows individual process units to be defined in terms of discrete experimental data. The process is viewed as a network of interconnected process units. The dynamic model of each unit may be either chosen from among a selection of pre-defined unit types, or defined by the user. The pre-defined units include a stochastic discrete-time model, and a module that will regress the coefficients for the discrete-time model from stochastic input/output data. When the computer is connected to an actual operating system through an A/D-D/A interface, SDS will function as a real time digital control system. To simplify the use of the simulator, an intelligent parser has been written which converts English-like instructions into the proper format for the simulator.