Method and apparatus for sorting or retrieving items

摘要

A method and apparatus are provided for sorting or retrieving items to/from a plurality of destinations areas (100). The items are loaded onto one of a plurality of independently controlled delivery vehicles (200). The delivery vehicles follow a track (110) that guides the delivery vehicles to/from the destination areas (100), which are positioned along the track. Once at the appropriate destination area, an item is transferred between the delivery vehicle and the destination area.