Security system for detecting hazardous events and occupants in a building

Abstract

A gunshot detection/security system for detecting dangerous events in a school or other building includes one or several pods placed throughout the building premises. Each pod includes a camera, a thermal camera, and an acoustic sensor for detecting video, images, heat signatures, and sound within a detection area for the respective pod. The sensor data is then analyzed to identify a dangerous event in the building, and provide alerts regarding the dangerous event via the pods or client computing devices of students/occupants in the building, administrators, parents, and emergency responders. A server computing device generates digital maps of the interior and exterior of the building having location information regarding the occupants of the building and a danger zone indicating the epicenter for the dangerous event.

1 . A method for routing a user to a building exit during a dangerous event, the method comprising:
 identifying, by one or more processors, a dangerous event within a building occupied by an occupant;   in response to identifying the dangerous event within the building, determining, by the one or more processors, a route from a location of the occupant to a building exit which avoids a danger zone corresponding to the dangerous event; and   causing, by the one or more processors, an indication of the route to be presented to the occupant by controlling one or more lights on a path corresponding to the route.   
     
     
         2 . The method of  claim 1 , wherein controlling one or more lights on a path corresponding to the route includes:
 identifying a set of multi-sensor devices on the path corresponding to the route, each multi-sensor device including one or more light emitting elements; and   sending a control signal to each of the set of multi-sensor devices to activate the one or more light emitting elements.   
     
     
         3 . The method of  claim 2 , wherein each multi-sensor device is configured to emit light having a plurality of different colors via the one or more light emitting elements, and wherein the control signal includes an instruction for each multi-sensor device to cause the one or more light emitting elements to emit a particular color of a plurality of colors. 
     
     
         4 . The method of  claim 2 , wherein the occupant is a first occupant, the route is a first route, the path is a first path, the set of multi-sensor devices is a first set of multi-sensor devices, the one or more light emitting elements are first light emitting elements, and further comprising:
 determining, by the one or more processors, a second route from a location of a second occupant to a building exit which avoids the danger zone;   identifying a second set of multi-sensor devices on a second path corresponding to the second route, each multi-sensor device including one or more second light emitting elements;   causing, by the one or more processors, the indication of the first route to be presented to the first occupant by sending a first control signal to each of the first set of multi-sensor devices on the first path to cause the one or more first light emitting elements to emit a first color; and   causing, by the one or more processors, an indication of the second route to be presented to the second occupant by sending a second control signal to each of the second set of multi-sensor devices on the second path to cause the one or more second light emitting elements to emit a second color different from the first color.   
     
     
         5 . The method of  claim 2 , wherein the one or more light emitting elements for each of the set of multi-sensor devices illuminate a surface to which the respective multi-sensor device is mounted. 
     
     
         6 . The method of  claim 1 , wherein identifying the dangerous event includes:
 obtaining, by the one or more processors, sound data indicative of sound within the building from an acoustic sensor;   obtaining, by the one or more processors, a heat signature from an object within the building from a thermal camera; and   detecting, by the one or more processors, a gunshot in response to determining that the heat signature is above a threshold temperature and the sound is within a threshold noise level range.   
     
     
         7 . The method of  claim 1 , wherein identifying the dangerous event includes:
 obtaining, by the one or more processors, a heat signature from an object within the building from a thermal camera; and   detecting, by the one or more processors, a fire in response to determining that the heat signature above is above a threshold fire temperature.   
     
     
         8 . The method of  claim 1 , wherein identifying the dangerous event includes:
 detecting, by the one or more processors, a gas leak based on chemical data from a gas sensor.   
     
     
         9 . The method of  claim 1 , wherein identifying the dangerous event includes:
 obtaining, by the one or more processors, image data for an object within the building from a camera;   obtaining, by the one or more processors, a heat signature from the object from a thermal camera;   detecting, by the one or more processors, a person by analyzing the image data to identify that the object includes features corresponding to a person, and analyzing the temperature data for the object to determine that the temperature data includes temperatures for the person within a body temperature range; and   detecting, by the one or more processors, a weapon attached to the person based on differences in temperature data within the object, wherein the differences in temperature data include temperatures outside of the body temperature range which generate a heat signature corresponding to a weapon.   
     
     
         10 . A computing device for routing a user to a building exit during a dangerous event, the computing device comprising:
 one or more processors; and   a non-transitory computer-readable memory coupled to the one or more processors and the user interface and storing instructions thereon that, when executed by the one or more processors, cause the computing device to:
 identify a dangerous event within a building occupied by an occupant; 
 in response to identifying the dangerous event within the building, determine a route from a location of the occupant to a building exit which avoids a danger zone corresponding to the dangerous event; and 
 cause an indication of the route to be presented to the occupant by controlling one or more lights on a path corresponding to the route. 
   
     
     
         11 . The computing device of  claim 10 , wherein to control one or more lights on a path corresponding to the route, the instructions cause the computing device to:
 identify a set of multi-sensor devices on the path corresponding to the route, each multi-sensor device including one or more light emitting elements; and   send a control signal to each of the set of multi-sensor devices to activate the one or more light emitting elements.   
     
     
         12 . The computing device of  claim 11 , wherein each multi-sensor device is configured to emit light having a plurality of different colors via the one or more light emitting elements, and wherein the control signal includes an instruction for each multi-sensor device to cause the one or more light emitting elements to emit a particular color of a plurality of colors. 
     
     
         13 . The computing device of  claim 11 , wherein the occupant is a first occupant, the route is a first route, the path is a first path, the set of multi-sensor devices is a first set of multi-sensor devices, the one or more light emitting elements are first light emitting elements, and the instructions cause the computing device to:
 determine a second route from a location of a second occupant to a building exit which avoids the danger zone;   identify a second set of multi-sensor devices on a second path corresponding to the second route, each multi-sensor device including one or more second light emitting elements;   cause the indication of the first route to be presented to the first occupant by sending a first control signal to each of the first set of multi-sensor devices on the first path to cause the one or more first light emitting elements to emit a first color; and   cause an indication of the second route to be presented to the second occupant by sending a second control signal to each of the second set of multi-sensor devices on the second path to cause the one or more second light emitting elements to emit a second color different from the first color.   
     
     
         14 . The computing device of  claim 11 , wherein the one or more light emitting elements for each of the set of multi-sensor devices illuminate a surface to which the respective multi-sensor device is mounted. 
     
     
         15 . The computing device of  claim 10 , wherein to identify the dangerous even, the instructions cause the computing device to:
 obtain sound data indicative of sound within the building from an acoustic sensor;   obtain a heat signature from an object within the building from a thermal camera; and   detect a gunshot in response to determining that the heat signature is above a threshold temperature and the sound is within a threshold noise level range.   
     
     
         16 . The computing device of  claim 10 , wherein to identify the dangerous even, the instructions cause the computing device to:
 obtain a heat signature from an object within the building from a thermal camera; and   detect a fire in response to determining that the heat signature above is above a threshold fire temperature.   
     
     
         17 . The computing device of  claim 10 , wherein to identify the dangerous even, the instructions cause the computing device to:
 detect a gas leak based on chemical data from a gas sensor.   
     
     
         18 . The computing device of  claim 10 , wherein to identify the dangerous even, the instructions cause the computing device to:
 obtain image data for an object within the building from a camera;   obtain a heat signature from the object from a thermal camera;   detect a person by analyzing the image data to identify that the object includes features corresponding to a person, and analyzing the temperature data for the object to determine that the temperature data includes temperatures for the person within a body temperature range; and   detect a weapon attached to the person based on differences in temperature data within the object, wherein the differences in temperature data include temperatures outside of the body temperature range which generate a heat signature corresponding to a weapon.   
     
     
         19 . A multi-sensor device comprising:
 a plurality of sensors configured to capture sensor data within a detection area of the multi-sensor device;   one or more light emitting elements;   one or more processors; and   a non-transitory computer-readable memory coupled to the one or more processors and storing instructions thereon that, when executed by the one or more processors, cause the computing device to:
 identify a dangerous event within a building occupied by an occupant based on the sensor data; 
 obtain an instruction to activate at least one of the one or more light emitting elements to signal a path to the occupant for exiting the building on a route which avoids a danger zone corresponding to the dangerous event; and 
 activate the at least one light emitting element in accordance with the obtained instruction. 
   
     
     
         20 . The multi-sensor device of  claim 19 , wherein the instruction includes a color or blinking frequency for the at least one light emitting element.