RF-Access: Barrier-Free Access Control Systems with UHF RFID

Traditional RFID-based access control systems use flap barriers to help manage pedestrian and block unauthorized staff at any entrance, which requires visitors swipe their cards individually wait for the opening of blocking body, resulting in low-frequency even congestion places with large passenger flow. This paper proposes a barrier-free system (RF-Access) UHF RFID technology. The main advantage RF-Access is that it provides non-intrusive by removing operations swiping card. just go across without stay entrance. Meanwhile performs authentication, greatly improves time efficiency quality service. addresses two key issues control: motion direction detection illegal intrusion detection. In RF-Access, we first propose dual-antenna setup together time-slot-based model monitor users’ moving directions, robust different environmental factors, such as multi-path effects. Afterwards, tag array detect case attackers do not carry tags. We implement prototype commercial devices. Extensive experiments show our can 99.83% accuracy an 96.67%.