| 摘要 |
It is presented a method performed in a lock device. The method comprises the steps of: receiving, in a passive Radio-frequency Identification, RFID, transceiver, energy from a key device using wireless energy transfer; entering an active state from an idle state; exchanging RFID data with the RFID reader; obtaining an access decision based on the RFID data; and mechanically unlocking the lock device when access is granted and wireless energy more than a threshold amount has been received. |
