원래 이름 기록: Position Imaging, Inc.

An electronic tag coupled to a piece of luggage comprising a computer processor, a memory in communication with the computer processor, the memory storing inertial data; and at least one sensor that captures the inertial data of the motion of the luggage in response to an external stimuli and outputs the inertial data to the memory, wherein the computer processor determines a mass of the luggage from the captured inertial data.