Abstract: A system may include one or more processors and a host unit installed in a support structure of a building, the host unit including a communication module configured to send or receive communication data with at least one or more additional host units installed in the building, where the one or more processors are configured to measure an attribute of the sent or received communication data and detect a presence of an object based on a threshold change in the measured attribute of the sent or received communication data between the host unit and the one or more additional host units. The attribute can be an angle-of-signal (AoS) arrival of the communication between the host unit and each of the one or more additional host units, where the threshold change in the measured attribute is a threshold change in the measured AoS arrival.

Abstract: In some embodiments, a method comprises receiving floor plan data corresponding to at least one of a location, dimensions, or orientation of one or more walls defining at least one room of a building; receiving sensor data corresponding to detected activity within the at least one room of the building; determining a type of the at least one room of the building based on the detected activity; and modifying the floor plan data to include the determined type of the at least one of the one or more rooms, wherein a visual representation of the floor plan data is operable to be output on a display device. The method can further include determining an area of the at least one room of the building, where determining the type of the at least one room can be further based on the area of the at least one room.

Abstract: A system may include one or more processors and a host unit installed in a support structure of a building, the host unit including a communication module configured to send or receive communication data with at least one or more additional host units installed in the building, where the one or more processors are configured to measure an attribute of the sent or received communication data and detect a presence of an object based on a threshold change in the measured attribute of the sent or received communication data between the host unit and the one or more additional host units. The attribute can be an angle-of-signal (AoS) arrival of the communication between the host unit and each of the one or more additional host units, where the threshold change in the measured attribute is a threshold change in the measured AoS arrival.