Walmart Inc.
Shelf system and associated methods

Abstract:

An example shelf system and associated methods are described. The shelf system includes a frame with a base member and a vertical member, first and second shelves extending from opposite sides of the vertical member, and first and second pairs of sensors disposed below the base member. In response to positioning a physical object on the first shelf or the second shelf, the physical object applies a torque on the vertical member and each of the sensors output electrical signals corresponding to a change in weight sensed by each of the sensors based on the torque. The shelf system includes a central computing system configured to determine which of the first shelf or the second shelf received the physical object, an estimated location of the physical object on the first or second shelf, and whether the physical object is positioned on the first or second shelf in an expected location.