Data processing: generic control systems or specific application – Specific application – apparatus or process – Article handling
Patent
1997-05-09
2000-01-04
Terrell, William E.
Data processing: generic control systems or specific application
Specific application, apparatus or process
Article handling
700218, 700225, 700214, 700228, 414273, 414268, B07C 1700, G07F 700, B65G 100
Patent
active
060119985
ABSTRACT:
An automated material handling picking system including a plurality of storage locations for objects which are to be picked, a moveable picking head for picking the objects from the storage locations, a moving conveyor including a plurality of receiving locations where the picked objects are to be consolidated into separate orders or sub-sets, and a bank of queue stations for temporarily holding the picked objects and selectively releasing them into the respective receiving locations where the sub-sets are to be consolidated. The picking head deposits a picked object into the nearest available queue station. The picking head is not involved in the consolidation of the objects into sub-sets because of the buffering effect of the queue stations. Preferably, only one object at a time is held in each queue. The release of the objects from the queue stations is coordinated so that all of the objects for a particular sub-set are released by the respective queue stations into one receiving location on the moving conveyor. The picking sequence is preferably based on the proximity of the object to the picking head, rather than on the object's inclusion in any particular sub-set. The normally more efficient proximity based picking sequence is made possible by the buffering effect of the queue stations.
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Lichti Robert D.
Lichti Wayne
Jagger Bruce A.
Park Wonki K.
Terrell William E.
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