Patent ID: 8265873

Claim:
A mobile drive unit for moving inventory items, comprising: a processor operable to: generate a first path between a first point and a second point, wherein the first path comprises a plurality of segments; determine an initial segment of the first path; reserve the initial segment of the first path; and a drive module coupled to the processor and operable to move the mobile drive unit away from the first point along the initial segment of the first path; after movement is initiated along the initial segment of the first path, the processor is further operable to determine whether to generate a new path for the mobile drive unit; if it is determined not to generate a new path, the processor is further operable to determine a second segment of the first path; and if it is determined to generate a new path, the processor is further operable to: generate a second path between a current location and the second point; and determine a first segment of the second path.