Patent ID: 8201737

Claim:
A system, comprising: a platform with a plurality of container positions, the platform configured to pivot about a base, the base dividing the platform into a first portion and a second portion, with at least one of the container positions being on each of the first portion and the second portion; a first load cell configured to measure a weight applied to the first portion along a first axis less a weight applied to the second portion along the first axis; a second load cell configured to measure a weight applied to the first portion along a second axis less a weight applied to the second portion along the second axis; at least one computer system, including a processor circuit and a memory; and an item placement validation application executable in the at least one computer system, the item placement validation application comprising logic that verifies that an item associated with a group of items has been placed in a correct one of the container positions based at least in part on the group of items, a location of each one of the container positions relative to the first load cell and the second load cell, a weight associated with the item, the weight detected by the first load cell, and the weight detected by the second load cell.