System and Method for Noise Detection

摘要

A system for noise detection. Aspects of the system include a detection unit for detecting and responding to a predetermined noise such as a gunshot. In some embodiments, at least a portion of the unit may be utilized both within a confined space, such as a room in a building, or inside a machine, and in large environments such as outdoors. The detection unit may comprise a digital computing device, a digital-to-analog converter, a speaker acoustic output, a microphone acoustic input, an analog-to-digital converter, and a transmitter.

主权项

1. A system for detecting and responding to at least one noise,
the system comprising:
a detection unit comprising:
a digital computing device, a mapping signal emitter and a mapping signal receiver, means to acquire an analog sound signal and an analog-to-digital converter;the mapping signal emitter configured to transmit an outbound analog signal into the environment in which the detection unit is located to produce a reflection of the outbound signal from the environment;the mapping signal receiver configured to receive an inbound analog signal which is the outbound signal from mapping emitter and its reflections from the environment;the means to acquire an analog sound signal configured to receive an inbound acoustic signal which includes ambient sound, specific noises and their reflection from the environment;the means to acquire an analog sound signal configured to receive an inbound acoustic signal and to provide an inbound analog signal, the inbound acoustic signal including the reflection of the outbound acoustic signal;the analog-to-digital converter coupled between the means to acquire an analog sound signal and the digital computing device;the analog-to-digital converter configured to receive an inbound analog signal from the means to acquire an analog sound signal, convert the inbound analog signal to an inbound digital signal, and transmit the inbound digital signal to the digital computing device responsive thereto;the inbound acoustic signal comprising at least one of a reflection of the outbound acoustic signal and a predetermined specific noise;the digital computing device configured to perform an analysis on the inbound digital signal, the analysis to determine at least one of: if the inbound digital signal is consistent correlates with the inbound acoustic signal being the specific noise, and an acoustic mapping of the environment in which the system detection unit is located, the digital computing device additionally configured to generate a first signal if the analysis determines that the inbound digital signal is consistent with the inbound acoustic signal being the specific noise, and to record the acoustic mapping of the environment in which the system is located.