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

Claim 13:
14. A computer implemented method for operating a security control module according to claim 1 in a secure control area, the method comprising:
establishing an ultra-wideband transmission between an ultra-wideband transceiver of the security control module and an ultra-wideband communication module of a mobile device;
determining—by a processing unit of the security control module—a first distance between the security control module and the mobile device by processing signal properties of the ultra-wideband transmission;
receiving a second distance from a further security control module arranged at a spacing distance apart from the security control module, the second distance being indicative of a distance between the further security control module and the mobile device;
transmitting the first distance from the security control module to the further security control module; and
determining—by the processing unit of the security control module—the relative position of the mobile device with respect to the security control module based on the first distance and the second distance.