System and method for reliable wireless device location mapping
A system and method of wireless device location mapping comprising measuring a signal strength of a wireless signal generated by the wireless device at a plurality of sensor devices positioned at a plurality of sensor locations; determining a range from each of the plurality of sensor devices to the wireless device based on the measured signal strength; and generating a plurality of ranging spheres, a respective one of the plurality of ranging spheres corresponding a respective one of the plurality of sensor devices and being centered at a respective one of the plurality of sensor locations and having a radius that is proportional to the determined range of the respective one of the plurality of sensor devices to the wireless device. The system and method further comprises generating a new radius for each of the plurality of ranging spheres by expanding the radius for each of the plurality of ranging spheres by a small increment while maintaining a ratio between any two of the radii of the plurality of ranging spheres, determining a number of intersection points and adding a location of each of the intersection points to a map.
1. A method of wireless device location mapping, the method comprising:
a) measuring a signal strength of a wireless signal generated by the wireless device at a plurality of sensor devices, each of the plurality of sensor devices positioned at a respective sensor location;
b) determining a range from each of the plurality of sensor devices to the wireless device based on the measured signal strength;
c) generating a plurality of ranging spheres, each of the plurality of ranging spheres corresponding to one of the plurality of sensor devices and being centered at the respective sensor location of the one of the plurality of sensors and having a radius that is proportional to the determined range of the one of the plurality of sensor devices to the wireless device;
d) determining a number of intersection points of the plurality of ranging spheres;
e) reducing the radius for each of the plurality of ranging spheres by a small decrement while maintaining a ratio between any two of the radii of the plurality of ranging spheres then repeating the steps d) and e) until the number of intersection points is zero;
f) generating a map;
g) expanding the radius for each of the plurality of ranging spheres by a small increment while maintaining a ratio between any two of the radii of the plurality of ranging spheres, determining a number of intersection points of the plurality of ranging spheres with the expanded radius and adding a location of each of the determined intersection points to the map, and repeating step g) until the number of intersection points is zero; and
h) determining an estimate of a location of the wireless device based on the map.
2. The method of wireless device location mapping of claim 1 wherein the determining the range to the wireless device for each of the plurality of sensor devices based on the measured signal strength comprises determining the range using a free space propagation loss formula.
3. The method of wireless device location mapping of claim 1 wherein the determining the estimate of the location of the wireless device comprises determining the estimate of the location using an intersection of intersections based on the map.
4. The method of wireless device location mapping of claim 1 wherein the determining the estimate of the location of the wireless device comprises determining the estimate of the location using a kernel density estimation.
5. The method of wireless device location mapping of claim 1 wherein the estimate of the location of the wireless device comprises a contour plot.
6. The method of wireless device location mapping of claim 1 wherein the estimate of the location of the wireless device comprises a density plot.
7. The method of wireless device location mapping of claim 1 further comprising generating a topology of wireless devices based on the estimate of the location of the wireless device.
8. The method of wireless device location mapping of claim 1 further comprising initiating a threat remediation based on the estimate of the location of the wireless device.
9. A system that maps a location of a wireless device comprising:
a) a plurality of sensors, each of the plurality of sensors positioned at a respective sensor location in a monitored network and configured to measure a signal strength of a wireless signal emitted by the wireless device; and
b) a server connected to each of the plurality of sensors and configured to:
i) receive the plurality of measured signal strengths;
ii) determine a range to the wireless device for each of the plurality of sensor devices based on the plurality of measured signal strengths;
iii) generate a plurality of ranging spheres, each of the plurality of generated ranging spheres corresponding to one of the plurality of sensor devices and being centered at the respective sensor location of the one of the plurality of sensors and having a radius that is proportional to the determined range of the one of the plurality of sensor devices to the wireless device;
iv) determine a number of intersection points of the plurality of ranging spheres and, if the number of intersection points is not zero, reduce the radius for each of the plurality of ranging spheres by a small decrement while maintaining a ratio between any two of the radii of the plurality of ranging spheres; and repeat steps iii) and iv) until the number of intersection points is zero;
v) generate a map;
vi) expand the radius for each of the plurality of ranging spheres by a small increment while maintaining a ratio between any two of the radii of the plurality of ranging spheres, determine a number of intersection points and add a location of each of the intersection points to the map, and repeating step vi until the number of intersection points is zero; and
vii) determine an estimate of a location of the wireless device based on the map.
10. The system that maps the location of the wireless device of claim 9 wherein at least one of the plurality of sensor devices comprises a security device.
11. The system that maps the location of the wireless device of claim 9 wherein at least one of the plurality of sensor devices comprises a wireless access point.
12. The system that maps the location of the wireless device of claim 9 wherein at least one of the plurality of sensors are connected to the server using a wireless connection.
13. The system that maps the location of the wireless device of claim 9 wherein at least one of the plurality of sensors are connected to the server using the internet.
14. The system that maps the location of the wireless device of claim 9 wherein the wireless device is configured to initiate a malware attack.
15. The system that maps the location of the wireless device of claim 9 wherein the server comprises a remote server.
16. The system that maps the location of the wireless device of claim 9 wherein the server comprises a server located in a cloud.
17. The system that maps the location of the wireless device of claim 9 wherein the server is further configured to generate a contour plot.
18. The system that maps the location of the wireless device of claim 9 wherein the server is further configured to generate a density plot.
19. The system that maps the location of the wireless device of claim 9 wherein the server is further configured to determine a KDE based on the map.