Smart card sequentially generating dynamic magnetic field and control method thereof

According to an aspect of the invention, the plate; Battery, which is provided in the interior of the plate; It is provided in the interior of the plate, a memory for storing card information of a plurality of cards; Receive, select the desired card information is provided on the outer surface of the plate using a user a user interface that can; Magnetic field generating unit that receives a supply current from the battery having a plurality of tracks which can generate a magnetic field; And a control unit that generates a magnetic field signal from the memory to be read and card information of a card selected by the user through the user interface, a group to sequentially supply current to the plurality of tracks corresponding to said selected card information according to the set order, which it may be provided with a smart card for generating a dynamic magnetic field in sequence.