Abstract: A location of a person is identified. A controller core is configured for interfacing with a plurality of sensing devices at a plurality of locations. Each sensing device has a sensor for detecting a threat-condition and an acoustic sensor for generating an acoustic indicator indicative of an incident acoustic wave. The controller core is configured to: (i) upon receiving a trigger, instruct wireless transmission to the sensing devices, of a request for an acoustic indicator generated in the sensing device, wherein the request configures each of the sensing devices to activate a process in respect of an incident acoustic wave; (ii) receive one or more of said requested acoustic indicators; and (iii) based on the received one or more acoustic indicators, identify a location of the person (103) within the building.

Abstract: An apparatus for monitoring an access point of a premises is disclosed comprising processing circuitry 116 configured to receive indications of access point events and first-region events. The indications of access point events are obtained by processing output of an access point sensor 112 configured to detect a state of the access point. The indications of first-region events are obtained by processing output of an environment sensor 114 configured to detect motion and/or presence of a person within a field of view associated with the first region. The processing circuitry 116 is configured to determine a region from which the person caused an access point event based on whether the access point event occurred within a first time interval after a preceding first-region event, and wherein the first time interval is modifiable.

Abstract: A location of a person is identified. A controller core is configured for interfacing with a plurality of sensing devices at a plurality of locations. Each sensing device has a sensor for detecting a threat-condition and an acoustic sensor for generating an acoustic indicator indicative of an incident acoustic wave. The controller core is configured to: (i) upon receiving a trigger, instruct wireless transmission to the sensing devices, of a request for an acoustic indicator generated in the sensing device, wherein the request configures each of the sensing devices to activate a process in respect of an incident acoustic wave; (ii) receive one or more of said requested acoustic indicators; and (iii) based on the received one or more acoustic indicators, identify a location of the person (103) within the building.