VIP access system for server room based on Near Field Communication technology

Nowadays,many smartphone products are bundled with a near field communication (nfc) module inside. in this research,it was used as a private key for high security server room in our institution. generally,it consisted of three main subsystems. those were security server,low cost embedded system,and nfc smartphone as a key. smartphone was used in host card emulation (hce) mode as an alternative iso14443a interfaced to its shield. low cost embedded system was used to control all of the magnetic keys at the door and all over the room. and every in-out activity to the room was recorded in the server. this system has quick time response and high success rate. based on the result,it was analyzed that this system performed very well with high reliability. so,the system can be implemented in server room well.