Modeling and Simulation with NSA-DEVSforMatlab

• NSA-DEVSforMatlab:
  • open source tool for NSA-DEVS
    • available at GitHub
    • based on Matlab
  • uses Simulink for building of coupled models
• Special features for NSA-DEVS:
  • general block parameter tau for input delay
    • default usually: tau = [0, 1] ≙ ε
  • block parameter tD for transitory states
    • default often: tD = [0, 1] ≙ ε
  • some blocks have different default values of tau or tD
• Structure:
  • Simulator
    • implementation of abstract simulator
  • Modelgenerator
    • creates Matlab scripts of coupled models from graphical (Simulink) descriptions
  • Modelbase
    • growing library of atomic components as Matlab classes
    • corresponding library of Simulink blocks as graphical representation
    • additional Simulink subsystems for coupled components
  • Utilities
    • auxiliary functions
  • Doc
    • tutorial teaching installation, modeling and simulation with examples
  • Examples
    • complete models of all papers and tutorial
  • Testbench
    • large set of unit tests
• Modelbase:
  • structure of library
    • 
  • sublibrary Math Operations
    • 
  • sublibrary Logistics
    • 
• Example of atomic am_add2:
  • basic component to add two input values
  • implemented as Matlab file in am_add2.m
• Modeling of atomics with NSA-DEVS diagrams
  • diagram describes atomic component
  • useful for
    • conceptual modeling
    • implementation
    • documentation
  • can be created with Dia diagram editor
  • example am_server
    • standard logistics component with one station and fixed service time
    •