Smart sensor system for threat detection

Abstract

A threat detection system includes a processor configured to receive a stream of audio data from one or more sensors positioned in or around a space monitored by the threat detection system; extract a portion of the stream of audio data; determine a signal characteristic of the portion of the stream of audio data; after determining that that a portion of the stream is compatible with a first machine learning model, determine a first confidence score for an existence of a threat in the space using the first machine learning model; determine a second confidence score by providing the portion of the stream of audio data, the signal characteristic, and the first confidence score to a second machine learning model; detect the existence of the threat based on based first and/or second confidence scores; and communicate the existence of the threat to a recipient device.