# US 2019/0318596 A1 · System And Method For Identifying And Mitigating A Threat In A Facility

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- Number: US 2019/0318596 A1
- Document ID: US20190318596A1
- Status: Published application
- Kind: A1
- Application number: 15/953,705
- Filed: 2018-04-16
- Published: 2019-10-17
- Earliest claimed: 2018-04-16
- Assignees: Mahindra N.A. Tech Center
- Applicants: Mahindra N.A. Tech Center
- Inventors: John P. PACELLA
- Web page: https://patentgrep.com/patent/US20190318596A1

## CPC

- G08B 17/08: Actuation involving the use of explosive means
- B64C 37/00: Convertible aircraft
- B64U 20/87: Mounting of imaging devices, e.g. mounting of gimbals
- F41G 3/22: for vehicle-borne armament, e.g. on aircraft
- F41G 7/308: {for guiding a plurality of missiles}
- F41G 7/346: {using global navigation satellite systems, e.g. GPS, GALILEO, GLONASS}
- G05D 1/0027: {involving a plurality of vehicles, e.g. fleet or convoy travelling (fleet control of land vehicles from a control room G05D1/0297; traffic control systems for road vehicles G08G1/00; for marine craft G08G3/00; for aircraft G08G5/00)}
- G05D 1/0094: {involving pointing a payload, e.g. camera, weapon, sensor, towards a fixed or moving target}
- G05D 1/104: {involving a plurality of aircrafts, e.g. formation flying (traffic control systems for aircraft G08G5/00)}
- G05D 1/12: Target-seeking control
- G08B 13/1672: {using sonic detecting means, e.g. a microphone operating in the audio frequency range}
- G08B 13/183: by interruption of a radiation beam or barrier
- G08B 13/1965: {the vehicle being an aircraft}
- G08B 25/12: Manually actuated calamity alarm transmitting arrangements {emergency non-personal manually actuated alarm, activators, e.g. details of alarm push buttons mounted on an infrastructure}
- G08B 27/001: {Signalling to an emergency team, e.g. firemen}
- G10L 15/22: Procedures used during a speech recognition process, e.g. man-machine dialogue
- H04N 7/181: {for receiving images from a plurality of remote sources}
- H04N 7/185: {from a mobile camera, e.g. for remote control}
- B64U 2101/18: for dropping bombs; for firing ammunition
- B64U 2101/30: for imaging, photography or videography
- B64U 2201/102: adapted for flying in formations
- F41G 9/002: {for guiding a craft to a correct firing position (for bombing control F41G9/02)}
- G10L 2015/223: {Execution procedure of a spoken command}
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- B64C: AEROPLANES; HELICOPTERS
- B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B)
- G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A system for mitigating a threat in a facility according to the present disclosure includes a threat identification module and at least one group of drones. The threat identification module is configured to generate a threat identification signal indicating that the threat has been identified in the facility and transmit the threat identification signal to a central command center. The at least one group of drones is configured to move toward the threat in response to at least one of the threat identification signal and a command from the central command center.

## Claims

### Claim 1

A system for mitigating a threat in a facility, the system comprising:
a threat identification module configured to:
generate a threat identification signal indicating that the threat has been identified in the facility; and
transmit the threat identification signal to a central command center; and
at least one group of drones positioned within the facility and configured to move toward the threat in response to at least one of the threat identification signal and a command from the central command center.

### Claim 2 (depends on 1)

The system of claim 1 further comprising a gunshot detection module configured to detect a gunshot in the facility, wherein the threat identification module is configured to generate the threat identification signal when the gunshot is detected.

### Claim 3 (depends on 1)

The system of claim 1, further comprising a silent alarm operable to output a signal indicative of a trespasser, wherein the threat identification module is configured to generate the threat identification signal when in receipt of the signal from the silent alarm.

### Claim 4 (depends on 1)

The system of claim 1 wherein the threat identification module is configured to generate the threat identification signal when in receipt of a signal that an emergency call is made from the facility.

### Claim 5 (depends on 1)

The system of claim 1 further comprising a microphone located in the facility, wherein the threat identification module is configured to generate the threat identification signal when the microphone detects a predetermined voice command.

### Claim 6 (depends on 1)

The system of claim 1 further comprising a weapon detection module configured to detect a weapon in the facility, wherein the threat identification module is configured to generate the threat identification signal when the weapon is detected.

### Claim 7 (depends on 1)

The system of claim 1 wherein:
the threat identification signal further indicates a location of the threat; and
the at least one group of drones is configured to fly toward the threat in response to the threat identification signal.

### Claim 8 (depends on 1)

The system of claim 1 wherein each of the at least one group of drones includes at least three drones.

### Claim 9 (depends on 1)

The system of claim 1 wherein:
each of the at least one group of drones includes a leader drone and a follower drone;
the leader drone includes a leader drone control module configured to control the leader drone to move toward the threat in response to at least one of the threat identification signal and the command from the central command center; and
the follower drone includes a follower drone control module configured to control the follower drone to follow the leader drone.

### Claim 10 (depends on 1)

The system of claim 1 wherein:
the at least one group of drones includes a plurality of drone groups;
the system further comprises a nest for each group of drones; and
the number and positions of the nests are selected to ensure that at least one of the drones groups arrives at the threat within a desired response time.

### Claim 11 (depends on 1)

The system of claim 1 wherein at least one of the drones includes:
a microphone configured to record audio;
a camera configured to record video; and
a transmitter configured to transmit the recorded audio and the recorded video to the central command center.

### Claim 12 (depends on 1)

The system of claim 1 wherein at least one of the drones includes:
a weapon; and
a drone control module configured to discharge the weapon at the threat.

### Claim 13 (depends on 1)

The system of claim 1 wherein at least one of the drones is configured to crawl under a door when the threat is located in a room of the facility that is accessible by the door and the door is closed.

### Claim 14

A method for identifying and mitigating a threat in a facility, the method comprising:
generating a threat identification signal indicating that the threat has been identified in the facility;
transmitting the threat identification signal to a central command center;
positioning at least one group of drones in the facility; and
controlling the at least one group of drones to move within the facility toward the threat in response to the threat identification signal.

### Claim 15 (depends on 14)

The method of claim 14 further comprising:
detecting a gunshot in the facility; and
generating the threat identification signal when the gunshot is detected.

### Claim 16 (depends on 14)

The method of claim 14 further comprising a silent alarm operable to output a signal indicative of a trespasser, generating the threat identification signal when in receipt of the signal from the silent alarm.

### Claim 17 (depends on 14)

The method of claim 14 further comprising generating the threat identification signal when in receipt of a signal that an emergency call is made from the facility.

### Claim 18 (depends on 14)

The method of claim 14 further comprising generating the threat identification signal when a microphone located in the facility detects a predetermined voice command.

### Claim 19 (depends on 14)

The method of claim 14 further comprising:
detecting a weapon in the facility; and
generating the threat identification signal when the weapon is detected.

### Claim 20 (depends on 14)

The method of claim 14 wherein the threat identification signal further indicates a location of the threat, the method further comprising controlling the at least one group of drones to fly toward the threat in response to the threat identification signal.

### Claim 21 (depends on 14)

The method of claim 14 further comprising transmitting a command from the central command center to the facility in response to the threat identification signal, wherein the at least one group of drones is configured to fly toward the threat in response to the command from the central command center.

### Claim 22 (depends on 14)

The method of claim 14 wherein each of the at least one group of drones includes a leader drone and a follower drone, the method further comprising:
controlling the leader drone to move toward the threat in response to the threat identification signal; and
controlling the follower drone to follow the leader drone.

### Claim 23 (depends on 14)

The method of claim 14 wherein the at least one group of drones includes a plurality of drone groups that are each stationed within a nest, the method further comprising selecting the number and positions of the nests to ensure that at least one of the drones groups arrives at the threat within a desired response time.

### Claim 24 (depends on 14)

The method of claim 14 wherein at least one of the drones includes a microphone configured to record audio and a camera configured to record video, the method further comprising transmitting the recorded audio and the recorded video to the central command center.

### Claim 25 (depends on 14)

The method of claim 14 wherein at least one of the drones includes a weapon, the method further comprising discharging the weapon at the threat.

### Claim 26 (depends on 14)

The method of claim 14 further comprising controlling at least one of the drones to crawl under a door when the threat is located in a room of the facility that is accessible by the door and the door is closed.