Patent ID: 11962360
Assignee: COMCAST CABLE COMMUNICATIONS, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A system comprising: a plurality of spatially static devices located at a premises; and a computing device configured to: determine first strengths of a plurality of wireless communication signals received from the plurality of spatially static devices; determine, based at least in part on the first strengths of the plurality of wireless communication signals, a group of devices of the plurality of spatially static devices that are located in an area of the premises; determine, based on one or more changes, during a first time period, of second strengths of wireless communication signals associated with the group of devices, a pattern associated with user activity in the area of the premises; and determine, based on the pattern and based on third strengths of wireless communication signals associated with the group of devices received within a second time period, abnormal user activity in the area of the premises.