The present invention is directed to an apparatus which can acquire, readout and perceive a scene based on the insertion, or embedding of photosensitive elements into or on a transparent or semi-transparent substrate such as glass or plastic. The cart further comprises a connecting unit having a first retainer, a second retainer connecting to the first retainer and a wheel retainer; a hook unit axially installed to the insertion unit; the hook unit having a plate; the plate having a tenon capable of being inserted into a buckling groove of the first retainer of the connecting unit. By moving the trolleys along the track, or track along the trolleys, the conveyor or conveyor groups can distribute material to or reclaim material from a selected storage bin using minimal amount of linear meters of conveyance.