US 12,190,665 B2
Access control method for persons and system for carrying out the method
Martin Haslinger, Grödig/Salzburg (AT); Walter Lechner, Grödig/Salzburg (AT); and Martin Haidacher, Grödig/Salzburg (AT)
Assigned to SKIDATA GmbH, Grödig/Salzburg (AT)
Filed by SKIDATA GmbH, Grödig/Salzburg (AT)
Filed on Nov. 6, 2023, as Appl. No. 18/502,660.
Application 18/502,660 is a continuation of application No. 17/502,435, filed on Oct. 15, 2021, granted, now 11,854,321.
Claims priority of application No. 20202025 (EP), filed on Oct. 15, 2020.
Prior Publication US 2024/0078857 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G07C 9/00 (2020.01); H04B 17/327 (2015.01)
CPC G07C 9/00309 (2013.01) [H04B 17/327 (2015.01); G07C 2009/00357 (2013.01); G07C 2009/0042 (2013.01); G07C 2009/00507 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An access control method in an access control system for persons,
wherein the access control system comprises at least two access control devices (16) that are respectively assigned to an access point,
each access control device (16) has at least two antennas (1, 2, 8, 9, 10, 11), which are arranged at the access point, the method comprising:
transmitting by the at least two antennas (1, 2, 8, 9, 10, 11) beacons containing a unique access point ID, which identifies the access point at which the at least two antennas (1, 2, 8, 9, 10, 11) are arranged, and a unique antenna ID within predefined intervals,
receiving by a server (15) or by the access control device (16) a response from a mobile device, said response containing an access authorization of the mobile device and the antenna ID of the antenna having the strongest signal determined based on the RSSIs (Received Signal Strength Indicator) and by means of bilateration,
granting access if the access authorization is valid for the access point ID.