Patent ID: 11893849
Assignee: CISCO TECHNOLOGY, INC.
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A system for securing a physical space in a building, the system comprising:
light fidelity (Li-Fi) access points (APs) mounted in the building and configured to receive Li-Fi signals from devices in the building;
at least one processor that is communicatively coupled to the Li-Fi APs; and
memory communicatively coupled to the at least one processor and storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
identifying, based on the Li-Fi signals, first locations of the devices within the building;
determining that the first locations of the devices are within a distance of a threshold to a secured space;
based on determining that the first locations of the devices are within the distance of the threshold, determining that authentication scores indicating that individuals carrying the devices are authorized users are greater than a threshold score, the authentication scores being associated with multiple authentication factors identified by the devices;
based on determining that the authentication scores are greater than the threshold score, unlocking and/or opening the threshold to the secured space;
identifying, based on the Li-Fi signals, second locations of the devices within the building;
determining that the second locations of the devices are within the secured space at first times;
based on determining that the second locations of the devices are within the secured space, logging entries of the authorized users into the secured space by storing indications of the first times and indications of at least one of the devices or the authorized users;
identifying, based on the Li-Fi signals, third locations of the devices within the building;
determining that third locations of the devices are outside of the secured space at second times, the second times occurring after the first times; and
based on determining that the third locations are outside of the secured space, storing an indication of the second times.