Method and system for transporting inventory items
First Claim
1. A method for transporting inventory items, comprising:
- moving a mobile drive unit beneath an inventory holder, wherein the inventory holder comprises a frame and a plurality of legs, wherein the legs are arranged to form a plurality of device openings that allow the mobile drive unit to move under the inventory holder;
lifting the inventory holder with the mobile drive unit; and
moving the mobile drive unit while the inventory holder is lifted.
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Abstract
A system for transporting inventory items includes an inventory holder capable of storing inventory items and a mobile drive unit. The mobile drive unit is capable of moving to a first point with the inventory holder at least one of coupled to and supported by the mobile drive unit. The mobile drive unit is additionally capable of determining a location of the inventory holder and calculating a difference between the location of the inventory holder and the first point. The mobile drive unit is then capable of determining whether the difference is greater than a predetermined tolerance. In response to determining that the difference is greater than the predetermined tolerance, the mobile drive unit is also capable of moving to a second point based on the location of the inventory holder, docking with the inventory holder, and moving the mobile drive unit and the inventory holder to the first point.
37 Citations
16 Claims
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1. A method for transporting inventory items, comprising:
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moving a mobile drive unit beneath an inventory holder, wherein the inventory holder comprises a frame and a plurality of legs, wherein the legs are arranged to form a plurality of device openings that allow the mobile drive unit to move under the inventory holder; lifting the inventory holder with the mobile drive unit; and moving the mobile drive unit while the inventory holder is lifted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile drive unit, operable to:
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move beneath an inventory holder, wherein the inventory holder comprises four legs arranged to form a plurality of device openings that allow the mobile drive unit to move under the inventory holder from four different directions on a two-dimensional grid; lift the inventory holder; and move while the inventory holder is lifted. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification