| 摘要 |
PROBLEM TO BE SOLVED: To eliminate any confirmation of stop of the output from a previous device to be detected by detecting outputs of different forms from devices to be detected one after another toward the advancing direction and recognizing each of them as a separate output by a traveling device. SOLUTION: When a traveling device 2 entering in a rotational movement rail 10 approaches to a central position, a light receiver 12b receives a signal of a projector B in the right side in the advancing direction so as to stop and a panel requires a host computer to turn the rotational movement rail 10. When the rotational movement rail 10 is completed its left turning, the traveling device 2 is restarted so as to enter into a storage rail 1a and the light receiver 12a receives again the signal of a projector A in the left side in the advancing direction, however, the traveling device 2 advances without any stop. In the case, when another traveling device 2 suspending a similar panel 3 to that of the traveling device 2 stops by the projector A of a left-side partitioning rail 1, it is simultaneously stopped. The traveling device 2 thus detects the outputs from the projectors A, B alternatively so that a control program is simplified. |
