Rapid Focus Security, LLC

Timothy Mossey

Ellery Crane

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.

System and method for reliable wireless device location mapping

A method of wireless device location determination includes defining a region of interest comprising a plurality of sensors. A reference frame and a grid comprises a plurality of simulation points with locations based on a coordinate system associated with the region of interest. Location coordinates for the plurality of sensors are established. A plurality of simulated wireless signal strengths is determined for each simulation point. A plurality of simulated signal strength matrix is generated using the plurality of simulated wireless signal strengths. A composite matrix is generated based on the plurality of simulated signal strength matrices. Wireless signal strength is measured at each of the plurality of sensors based. A measured wireless signal strength vector is then generated based on the measured wireless signal strength. A location of the intrusive device is then determined based on the measured wireless signal strength vector and the composite matrix.

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Burlington, VT, United States of America

Timothy Mossey