| 摘要 |
<p>PURPOSE:To prevent a work from being in short supply at specified station having high significance. CONSTITUTION:The priority order of the stations to convey a work of a plurality out of stations S1, S2, and S3 is predetermined. When a work demand indication is almost simultaneously effected from a plurality of the stations, a conveyance indication is made on a self-running truck 1, in order, from the station having a high priority order to convey a work to the corresponding station.</p> |
