Model-based FDIR Technique Engineers model the behavior of the system(i.e components) Computer detects/isolates/recovers faults by reasoning on the model of the system Both the model and the model-based FDIR system can be reused Problem too difficult for a computer? I 323 Model-based Observation FDIR Command System Massachusetts Institute of Technology
6 Massachusetts Institute of Technology Model-based FDIR Technique • Engineers model the behavior of the system (i.e. components). • Computer detects/isolates/recovers faults by reasoning on the model of the system. • Both the model and the model-based FDIR system can be reused. • Problem too difficult for a computer? Model-based FDIR System Observation Command
Planning Scheduling Planning Given: Set of actions a system can perform and the associated requirements and effects of the actions Current state Desired goal state Objective: Compute a sequence of actions that achieves the desired goal state Scheduling Given: Set of tasks to execute and the associated constraints (i.e. time, resource, .. Objective: Compute the proper order of the tasks that satisfies the constraints 7 Massachusetts Institute of Technology
7 Massachusetts Institute of Technology Planning & Scheduling • Planning – Given: • Set of actions a system can perform and the associated requirements and effects of the actions • Current state • Desired goal state – Objective: Compute a sequence of actions that achieves the desired goal state. • Scheduling – Given: Set of tasks to execute and the associated constraints (i.e. time, resource, …) – Objective: Compute the proper order of the tasks that satisfies the constraints