System and method of detecting individuals in a target geographic location with a disastrous site using smart antenna borne drone
A system and method for detecting individuals in a target geographic location, such as a disastrous site, that identifies and locates potential victims using signals from the victims' cell phone utilizes an unmanned aerial vehicle controlled equipped with a retractable antenna component and a core network connection component. The retractable antenna component includes a mobile telephony base station and employs a smart antenna system so as to estimate the direction of arrival of all incoming signals. The core network connection component is operative to establish a wireless communication link with an Internet Protocol based core network of. When a victim's cell phones attempts to connect to the base station in order to access the core network, the location of the cell phone can be determined. The locations can be plotted on a map and based on the distribution of phones on the map, rescue efforts can be optimized.
1. A method for detecting individuals in a target geographic location which may embody a disastrous site, comprising the steps of:
causing an unmanned aerial vehicle to be directed to a selected geolocation at the target geographic location, wherein said unmanned aerial vehicle is equipped with an antenna component adapted to communicate directly wirelessly with mobile handsets through an included mobile telephony base station system and estimate the Direction of Arrival of all incoming wireless signals as well as identify and separate desired incoming wireless signals through a smart antenna system;
wherein said unmanned aerial vehicle is additionally equipped with a core network connection component adapted to establish a wireless communication link with an Internet Protocol based core network;
connecting by said core network connection component to the Internet Protocol based core network;
activating by said antenna component the base station system, thereby enabling a plurality of mobile handsets in the target geographic location to communicate wirelessly with the antenna component;
determining the location by geographic coordinates of each of the plurality of mobile handsets based on wireless communications between the each of the plurality of mobile handsets and the antenna component;
plotting each of the plurality of mobile handsets on a map;
determining a total impact area based on the geographic coordinates of each of the plurality of mobile handsets;
determining whether each of the plurality of mobile handsets in the target geographic location is stationary;
partitioning the total impact area into a plurality of virtual sections; and
assigning a priority level to each of the plurality of virtual sections.
2. The method of claim 1 , additionally comprising the step of tabulating, for each virtual section, a section density which is based on the quantity of the plurality of mobile handsets determined to be stationary in each virtual section.
3. The method of claim 2 , additionally comprising the step of indicating the priority level for each of the plurality of virtual sections, wherein the priority level for each of the plurality of virtual sections is based on the tabulated section density values relative to a predetermined threshold value.
4. The method of claim 3 , wherein for each of the plurality of virtual sections, the step of indicating includes directing a visual indicator from the unmanned aerial vehicle to a geographic location which corresponds to the respective virtual section.
5. The method of claim 1 , wherein the step of determining the location is performed using the Direction of Arrival of incoming signals from the first mobile handset to the antenna component.
6. The method of claim 1 , wherein the plurality of virtual sections have fixed spatial dimensions.
7. The method of claim 1 , additionally comprising the step of tabulating a total quantity which defines the number of the plurality of mobile handsets determined to be stationary.
8. The method of claim 1 , additionally comprising the step of overlaying each of the plurality of virtual sections on the map.