| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an unmanned carrier equipped with a guide sensor capable of accurately receiving a signal from a guide line. SOLUTION: This unmanned carrier is controlled by a control circuit 13 to travel along the center of a pair of guide sensors 33 for detecting a guide line 49 embedded on a road, and for controlling the steering of front wheels 4, and the sum and difference of the signals of the pair of guide sensors 33 are calculated so that when the sum is not more than a prescribed value, it is possible to decide that the unmanned carrier is running off the guide line 49.</p> |
