Systems and methods associated with detection of indoor gunfire
First Claim
1. An indoor gunshot detection system comprising:
- indoor sensors arranged to detect gunfire in a series of enclosed spaces having significant acoustic reverberation;
wherein the sensors are constructed with microphones designed to detect high amplitude impulses between about 120 dB to about 160 dB from nearby gunfire;
one or more processing components and/or non-transitory computer readable media configured to process potential gunshot data utilizing knowledge of particular sensor positions and designed to;
analyze impulses received by the indoor sensorsdetermine if the received impulses are gunfire, andpass alerts to at least one of local authorities, persons at risk, or a central alert facility; and
at least one networking component constructed and arranged to transmit communications between the indoor acoustic sensors, the one or more processing components and/or computer readable media, and computing devices that receive the alerts;
wherein one or more of the sensors further include an IR detector to measure an optical flash of gunfire;
wherein the one or more processing components and/or computer readable media is or are configured to compare shape or amplitude of the acoustic and IR impulses with known weapon or firework characteristics, such that classification of the impulses as a known weapon or firework can be made.
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Accused Products
Abstract
Systems and methods are disclosed for reliably detecting gunfire in enclosed spaces having significant acoustic reverberation. Implementations are configured to quickly and reliably report the room or portion of a room where gunfire is located. Innovations herein may ensure low false alarm rate by thresholding, pattern recognition and/or detecting the muzzle optical flash. In some embodiments, a review center with trained personnel may evaluate the incident before reporting to local authorities. The indoor system can be incorporated into an outdoor gunshot location system to better protect a local area such as a campus or a transportation hub. Systems and methods herein may involve features and functionality associated with additional resources, such as intercoms, cellphones, and access control, to provide mitigation of harm in case of a shooting.
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Citations
52 Claims
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1. An indoor gunshot detection system comprising:
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indoor sensors arranged to detect gunfire in a series of enclosed spaces having significant acoustic reverberation; wherein the sensors are constructed with microphones designed to detect high amplitude impulses between about 120 dB to about 160 dB from nearby gunfire; one or more processing components and/or non-transitory computer readable media configured to process potential gunshot data utilizing knowledge of particular sensor positions and designed to; analyze impulses received by the indoor sensors determine if the received impulses are gunfire, and pass alerts to at least one of local authorities, persons at risk, or a central alert facility; and at least one networking component constructed and arranged to transmit communications between the indoor acoustic sensors, the one or more processing components and/or computer readable media, and computing devices that receive the alerts; wherein one or more of the sensors further include an IR detector to measure an optical flash of gunfire; wherein the one or more processing components and/or computer readable media is or are configured to compare shape or amplitude of the acoustic and IR impulses with known weapon or firework characteristics, such that classification of the impulses as a known weapon or firework can be made. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An indoor gunshot detection system comprising:
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indoor sensors arranged to detect gunfire in a series of enclosed spaces having significant acoustic reverberation; wherein the sensors are constructed with microphones designed to detect high amplitude impulses between about 120 dB to about 160 dB from nearby gunfire; one or more processing components and/or non-transitory computer readable media configured to process potential gunshot data utilizing knowledge of particular sensor positions and designed to; analyze impulses received by the indoor sensors determine if the received impulses are gunfire, and pass alerts to at least one of local authorities, persons at risk, or a central alert facility; and at least one networking component constructed and arranged to transmit communications between the indoor acoustic sensors, the one or more processing components and/or computer readable media, and computing devices that receive the alerts; wherein a room sensor uses two acoustic channels including a low gain channel and a high gain channel. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 39, 40)
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36. An indoor gunshot detection system comprising:
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indoor sensors arranged to detect gunfire in a series of enclosed spaces having significant acoustic reverberation; wherein the sensors are constructed with microphones designed to detect high amplitude impulses between about 120 dB to about 160 dB from nearby gunfire; one or more processing components and/or non-transitory computer readable media configured to process potential gunshot data utilizing knowledge of particular sensor positions and designed to; analyze impulses received by the indoor sensors determine if the received impulses are gunfire, and pass alerts to at least one of local authorities, persons at risk, or a central alert facility; and at least one networking component constructed and arranged to transmit communications between the indoor acoustic sensors, the one or more processing components and/or computer readable media, and computing devices that receive the alerts; wherein one or more of the sensors further include an IR detector to measure an optical flash of gunfire; wherein the one or more processing components and/or computer readable media utilize differences in arrival times between the IR and acoustic impulses to; determine distance between the sensor and potential gunfire incidents; and compare the arrival time information against expected travel time across the room and discard the potential incidents corresponding to distances greater than the room size. - View Dependent Claims (37, 38, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification