Detection and classification of abnormal sounds
First Claim
1. An audio surveillance node, comprising:
- a microphone configured to detect sound and to detect acoustic pulses;
a speaker configured to provide sound and to emit acoustic pulses; and
a control unit configured to;
receive a plurality of inputs, including a plurality of sound inputs based on a detected sound detected by the microphone and a plurality of acoustic pulses transmitted by a second audio surveillance node and detected by the microphone;
determine a location of the audio surveillance node relative to the second audio surveillance node based on the acoustic pulses detected by the microphone;
determine a location of the source of the detected sound based on the plurality of sound inputs and the location of the second audio surveillance node;
classify the detected sound according to predefined alert conditions and based on the determination of the location of the source of the detected sound;
provide an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and
provide an audio response to the detected sound.
3 Assignments
0 Petitions
Accused Products
Abstract
An audio surveillance system includes a plurality of nodes and each node includes a microphone, a speaker, and a control unit. The microphone is configured to detect sound and the speaker is configured to provide sound. The control unit is configured to receive a plurality of inputs from the plurality of nodes and the plurality of inputs are based on a detected sound; determine a location of the source of the detected sound based on the plurality of inputs; classify the detected sound according to predefined alert conditions and based on the location of the source of the detected sound; provide an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and control at least one node from the plurality of nodes to provide an audio response to the detected sound.
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Citations
35 Claims
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1. An audio surveillance node, comprising:
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a microphone configured to detect sound and to detect acoustic pulses; a speaker configured to provide sound and to emit acoustic pulses; and a control unit configured to; receive a plurality of inputs, including a plurality of sound inputs based on a detected sound detected by the microphone and a plurality of acoustic pulses transmitted by a second audio surveillance node and detected by the microphone; determine a location of the audio surveillance node relative to the second audio surveillance node based on the acoustic pulses detected by the microphone; determine a location of the source of the detected sound based on the plurality of sound inputs and the location of the second audio surveillance node; classify the detected sound according to predefined alert conditions and based on the determination of the location of the source of the detected sound; provide an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and provide an audio response to the detected sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for detecting and classifying sounds, comprising:
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receiving, by a control unit, a plurality of inputs from a plurality of nodes, wherein the plurality of inputs are based on a detected sound; determining, by the control unit, a location of the source of the detected sound based on the plurality of inputs; classifying, by the control unit, the detected sound according to predefined alert conditions and based on the location of the source of the detected sound; providing, by the control unit, an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and controlling, by the control unit, at least one node from the plurality of nodes to provide an audio response to the detected sound. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for detecting and classifying sounds, comprising:
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receiving, by a control unit, a plurality of inputs, including a plurality of sound inputs based on a detected sound and time-of-flight data for a plurality of acoustic pulses transmitted and received by different audio surveillance nodes; determining, by the control unit, a location of an audio surveillance node based on the plurality of time-of-flight data; determining, by the control unit, a location of the source of the detected sound based on the plurality of sound inputs and based on the location of the audio surveillance node; classifying, by the control unit, the detected sound according to predefined alert conditions and based on the location of the source of the detected sound; providing, by the control unit, an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and controlling, by the control unit, a speaker to provide an audio response to the detected sound. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification