Page 161 - Introduction to AI Robotics
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                                                                                     4 The Reactive Paradigm






































                                            Figure 4.26 Visualization of the docking behavior with obstacles.




                                     of the dock. The general attraction motor schema would then be reactivate,
                                     along with the associated perceptual schema to estimate the direction of the
                                     dock. This vector would allow the robot to avoid the human in a direction
                                     favorable as well as turn back towards the dock and try to re-acquire it.
                                       The docking behavior also illustrates how the sensing capabilities of the
                                     robot impact the parameters of the motor schemas. Note that the angular size
                                     of the selective attention field would be determined by the angles at which
                                     the third perceptual schema could identify the dock. Likewise the radius of
                                     the tangential and selective attraction fields is determined by the distance at
                                     which the robot can perceive the dock.
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