| 摘要 |
<p>PURPOSE:To pass precedingly a picking station which makes picking operation. CONSTITUTION:When unmanned carriers 9a and 9b make picking operation between picking stations 8b and 8d, a display lamp 18c on an operation panel 17 of a picking station 8c for which the unmanned carrier 9b makes the operation next time is lit for workers to know that he makes the next operation at the picking station 8c. Even if the operation at the picking station 8a is assigned to the unmanned carrier 9b, however, a display lamp 18a will not be lit until the preceding unmanned carrier 9a passes through the front of the picking station 8a to avoid confusion.</p> |
