公开(公告)号：US12124913B2

公开(公告)日：2024-10-22

申请号：US18019597

申请日：2021-08-05

Applicant: ALERT-GENIUS S.R.L.

Inventor： Andrea Moroni Stampa ,  Matteo Cocchi

IPC: G06K7/10 ,  G06K19/07

CPC classification number: G06K7/10366 ,  G06K19/0723

Abstract: Portable RFID device (300), usable in an access and/or presence control system, comprising a radio frequency transmitter module (305) connected to an accelerometer (315) that is configured to detect movements of the portable RFID device (300), wherein the portable RFID device (300) is configured to be powered by a battery (325), wherein the accelerometer (315) is configured to send to the radio frequency transmitter module (305) a value of detected acceleration of the portable RFID device (300), and the radio frequency transmitter module (305) is configured to recognize when said value of detected acceleration is higher than a minimum threshold and, in this case, to activate for a transmission period a transmission of a radio frequency signal including an identification code.