Highly portable system for acoustic event detection
First Claim
1. A method of processing gunshot location information associated with a portable acoustic sensor, the method comprising:
- detecting an acoustic event at a microphone associated with the portable acoustic sensor, wherein the sensor has a housing configured for portable operation in association with a person;
determining, via a processor in communication with the microphone and contained within or attached to the housing, a time of arrival for the acoustic event;
providing position information regarding the sensor to the processor via a GPS receiver in communication with the processor;
determining a source location of the gunshot as a function of sensor data including time of arrival information as to when a muzzle blast impulse caused by discharge of the gunshot was detected, wherein muzzle blast time of arrival data is used in providing direction information including a direction from the portable acoustic sensor towards the source location of the gunshot; and
displaying the source location on a display associated with the portable acoustic sensor.
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Accused Products
Abstract
A man wearable acoustic sensor for use with a gunshot detection system. In a preferred embodiment the inventive sensor includes: a housing configured to be man wearable, a microphone; a processor housed within the housing and in communication with the microphone to detect an acoustic event and determine a time of arrival for the acoustic event; a GPS receiver for providing position information to said processor; a network; and a display for displaying information concerning acoustic events to a user. Man wearable describes a sensor which is either integrated into a piece of equipment normally carried by a soldier or integrated into an article of clothing or configured to securely attach to such equipment or clothing.
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Citations
28 Claims
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1. A method of processing gunshot location information associated with a portable acoustic sensor, the method comprising:
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detecting an acoustic event at a microphone associated with the portable acoustic sensor, wherein the sensor has a housing configured for portable operation in association with a person; determining, via a processor in communication with the microphone and contained within or attached to the housing, a time of arrival for the acoustic event; providing position information regarding the sensor to the processor via a GPS receiver in communication with the processor; determining a source location of the gunshot as a function of sensor data including time of arrival information as to when a muzzle blast impulse caused by discharge of the gunshot was detected, wherein muzzle blast time of arrival data is used in providing direction information including a direction from the portable acoustic sensor towards the source location of the gunshot; and displaying the source location on a display associated with the portable acoustic sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of processing gunshot location information associated with a portable acoustic sensor, the method comprising:
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detecting an acoustic event via a microphone associated with the portable acoustic sensor, wherein the sensor has a housing configured for portable operation in association with a person; determining, via a processor in communication with the microphone and contained within or attached to the housing, a time of arrival for the acoustic event; providing position information to the processor via a GPS receiver in communication with the processor; networking the portable acoustic sensor with a plurality of sensors positioned apart from each other in an array such that the gunshot location is calculated as a function of time of arrival information of a muzzle blast detected at each of the plurality of sensors, such that a location of the gunshot may be determined using only muzzle blast time of arrival data; and receiving information related to the source of the gunshot for display on a display associated with the portable acoustic sensor. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of processing gunshot location information associated with a portable acoustic sensor, the method comprising:
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detecting an acoustic event via microphones associated with the portable acoustic sensor, wherein the sensor has a housing configured for portable operation in association with a person; determining, via a processor in communication with the microphones and contained within or attached to the housing, a time of arrival for the acoustic event; providing position information to the processor via a GPS receiver in communication with the processor; networking the portable acoustic sensor with a plurality of sensors positioned apart from each other in an array such that the gunshot location is calculated as a function of time of arrival information of a muzzle blast detected at each of the plurality of sensors, such that a location of the gunshot may be determined using only muzzle blast time of arrival data; and processing information related to the source of the gunshot for display on a display associated with the portable acoustic sensor; wherein the information for display on the display comprises location information of the source of the acoustic event.
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28. A portable acoustic sensor including computer readable storage media containing instructions executable to perform a method of processing gunshot location information associated with a portable acoustic sensor, the method comprising:
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detecting an acoustic event via an array of microphones associated with the portable acoustic sensor, wherein the sensor has a housing configured for portable operation in association with a person; determining, via a processor in communication with the microphone and contained within or attached to the housing, a time of arrival for the acoustic event; providing position information regarding the sensor to the processor via a GPS receiver in communication with the processor; determining a source location of the gunshot as a function of sensor data including time of arrival information as to when a muzzle blast impulse caused by discharge of the gunshot was detected, wherein muzzle blast time of arrival data is used in providing direction information including a direction from the portable acoustic sensor towards the source location of the gunshot; and displaying the source location on a display associated with the portable acoustic sensor; wherein the housing is configured to be man wearable.
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Specification