Patent ID: 7203458

Claim:
A method of position tracking and communication in a locale with a plurality of probes interconnected to a computing device and having a least one mobile device, comprising the steps of: (a) placing said probes at locations in said locale; (b) modeling said locale with site-specific information using a network of states and transitions with probabilities; (c) deploying at least one of said mobile devices in said locale; (d) encoding each of said deployed mobile devices with an identifier; (e) sending out beacons by said probes; (f) responding by at least one of said mobile devices upon receiving said beacon from at least one of said probes; (g) gathering the whereabouts of said mobile device to input to said computing device; (h) calculating the most probable location of said mobile device using said whereabouts of said mobile device and said network of states and transitions with probabilities; and (i) updating location information for said mobile device.