A device testing system includes a detecting module, a data determining module, an address processing module, and a data obtaining module. Included among these are first and second centerline end restraints mounted on the centerline, at least one caster panel mounted on one side of the cargo hold and across the centerline from a side door of the aircraft, and a plurality of mechanical restraints mounted on a floor of the cargo hold on either side of the centerline and outside the wingbox area. The door includes a door frame with an airflow opening. The captured image and the viewer image are compared to identify at least one common feature in the captured image and the viewer image. The camera may be a single camera.