| 摘要 |
PURPOSE:To change directions of a carrier vehicle body smoothly without any shock by guiding light from a projector to a photodetector through a mirror, and controlling the angle and displacement of this mirror. CONSTITUTION:The mirror 7 is fitted rotatably to the carrier vehicle body 1 and movably to the left and right. In this case, the carrier vehicle moving straight toward a projector 4a starts changing direction at a point C and moves toward a projector at a projector 5a through a point D. In this case,the mirror 7 is rotated starting at the point c and displaced to a lateral direction, and then the vehicle body 1 changes direction; the angle beta of the mirror 7 is set to +alpha/4 when the vehicle reaches the point D and its extent of displacement is made coincident with the displacement of distance between the points A and D. When the vehicle reaches the point D, the angle beta is changed from +alpha/4 to -alpha/4 and the photodetector 6, therefore, receives the light from the projector 5a. The extent of displacement is reduced as its movement and the angle is also returned to a reference position so that the vehicle reaches a point E. |
