Patent ID: 11875624
Assignee: DORMAKABA SCHWEIZ AG
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A computer implemented method for operating a security control system according to claim 5 in a secure control area, the method comprising:
establishing an ultra-wideband transmission between each ultra-wideband transceiver of the plurality of security control modules and an ultra-wideband communication module of a mobile device;
determining—by the processing units of each security control module—a first distance between the security control modules and the mobile device by processing signal properties of the ultra-wideband transmissions;
at least one security control module transmitting the first distance to the further security control modules;
at least one security control module receiving a second distance from a further security control module arranged at a spacing distance apart, the second distance being indicative of distances between the further security control modules and the mobile device; and
determining—by at least one processing unit of the security control module—the relative position of the mobile device with respect to the security control modules.