Abstract: Systems and methods for detecting an unknown drone device are provided. Systems and methods may include identifying a presence of an unidentified drone device within or proximate to a protected area based on sensor data received from at least one sensor device, comparing the sensor data to stored data for known drone devices to determine whether the unidentified drone device is known or unknown, and initiating specific security responses when the unidentified drone is unknown.

Abstract: A location tracking system includes a first plurality of signal receiving and transmitting devices, the members of the first plurality each include an RF transceiver, sound receivers and sound emitters. A second plurality of signal transmitting units, the members of the second plurality each include at least an RF transceiver and a sound emitter. A system control element in communication with the members of the first plurality wherein the control element determines the locations of members of the second plurality based, at least in part, on information received from members of the first plurality.

Abstract: A location tracking system includes a first plurality of signal receiving and transmitting devices, the members of the first plurality each include an RF transceiver, sound receivers and sound emitters. A second plurality of signal transmitting units, the members of the second plurality each include at least an RF transceiver and a sound emitter. A system control element in communication with the members of the first plurality wherein the control element determines the locations of members of the second plurality based, at least in part, on information received from members of the first plurality.