Abstract: A gunshot detection system provides anti-tampering protection for gunshot sensor units and a control panel. The control panel monitors for tampering events, including monitoring for changes to configuration settings. When the settings are changed, even by an authorized user, the control panel generates a tampering alert and sends the alert to an operator of the control panel and/or administrators for the gunshot detection system. A similar notification might also occur when a sensor is taken offline or when an anti-tamper sensor on a housing of the gunshot sensor unit detects manipulation or opening of the housing. The control panel also monitors for tampering using machine certificates associated with the gunshot sensor units. In one example, the gunshot sensor units sign event data using the machine certificates and an arbitrary reference number known to the control panel. The control panel then verifies the signed event data to detect tampering events.

Abstract: A gunshot detection system includes a control panel that receives event data from gunshot sensor units detecting gunshots and generates location information pertaining to a shooting event based on the event data. The control panel includes a display on which a graphical user interface (GUI) is rendered. The GUI displays maps of a building with icons overlaid on the maps based on the generated location information. In one example, the GUI displays a map with an icon representing the active shooter, the position of the icon with respect to the floorplan image corresponding to an area of the building. In another example, the GUI displays a map with icons representing different gunshot sensor units, the icons having different visual characteristics to indicate that the gunshot sensor units detected the gunshots and/or which of the gunshot sensor units was determined to be closest to the detected gunshots.

Abstract: A gunshot detection system includes gunshot sensor units and a control panel. The gunshot sensor units generate audio data and encrypt the audio data using an encryption key before storing the audio data and/or sending it to the control panel. The control panel decrypts received encrypted audio data using a decryption key. The encryption keys might be programmed at the control panel and distributed to the gunshot sensor units. The control panel would also store decryption keys for decrypting the audio data from each of the different gunshot sensor units. An additional layer of end-to-end encryption is provided for messages exchanged between the devices. The gunshot sensor units can also be equipped with wireless interfaces for communicating with the control panel over a communication network. To address potential bandwidth issues, the gunshot sensor units determine current network conditions and compress the audio data based on the current network conditions.

Abstract: A gunshot detection system provides anti-tampering protection for gunshot sensor units and a control panel. The control panel monitors for tampering events, including monitoring for changes to configuration settings. When the settings are changed, even by an authorized user, the control panel generates a tampering alert and sends the alert to an operator of the control panel and/or administrators for the gunshot detection system. A similar notification might also occur when a sensor is taken offline or when an anti-tamper sensor on a housing of the gunshot sensor unit detects manipulation or opening of the housing. The control panel also monitors for tampering using machine certificates associated with the gunshot sensor units. In one example, the gunshot sensor units sign event data using the machine certificates and an arbitrary reference number known to the control panel. The control panel then verifies the signed event data to detect tampering events.

Abstract: A gunshot detection system includes a control panel that receives event data from gunshot sensor units detecting gunshots and generates location information pertaining to a shooting event based on the event data. The control panel includes a display on which a graphical user interface (GUI) is rendered. The GUI displays maps of a building with icons overlaid on the maps based on the generated location information. In one example, the GUI displays a map with an icon representing the active shooter, the position of the icon with respect to the floorplan image corresponding to an area of the building. In another example, the GUI displays a map with icons representing different gunshot sensor units, the icons having different visual characteristics to indicate that the gunshot sensor units detected the gunshots and/or which of the gunshot sensor units was determined to be closest to the detected gunshots.