Page 75 - Introduction to AI Robotics
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                                                 SENSE        PLAN          ACT   2 The Hierarchical Paradigm
                                                                                        Sample Activities

                                                                                        Mission Planner




                                                                                          Navigator




                                                                                            Pilot




                                               SENSE          MODEL          ACT
                                                                      a.


                                         SENSE                                         PLAN
                                                                     Value
                                                                   Judgment
                                             changes
                                               and                      simulated             task
                                              events                      plans              goals


                                             Sensory                World                  Behavior
                                            Perception             Modeling                Generation
                                                        perception,            plans,
                                                         focus of              state of
                                                        attention  Knowledge   actions
                                                                   Database            ACT
                                             observed                                      commanded
                                              input                                          actions

                                                                      b.

                                     Figure 2.7 Layout of RCS: a.) hierarchical layering of sense-model-act, and b.) func-
                                     tional decomposition.
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