Abstract: A system for determining a position of location of a tag includes, in an embodiment: a plurality of routers each including at least one antenna; and a location engine to: (a) determine for at least one router, from signals sent by the one router and at least part of which are received by the at least one antenna of each of at least one other of the routers, an average path loss of signal strength; (b) optimize, for at least the one router, multipath parameters in a radio-frequency signal propagation equation using the average path loss for each of the at least one other of the routers and known distance between the router and each of the at least one other of the routers; and (c) determine the position of location of the tag using at least the optimized multipath parameters.
Type:
Grant
Filed:
October 8, 2012
Date of Patent:
August 26, 2014
Assignee:
Buzby Networks, LLC
Inventors:
Erik J. Davidson, Sven G. Bilén, Daniel R. Weiss, Nicholas E. Platt, Erik D. Weir
Abstract: A system for determining a position of location of a tag includes, in an embodiment: a plurality of routers each including at least one antenna; and a location engine to: (a) determine for at least one router, from signals sent by the one router and at least part of which are received by the at least one antenna of each of at least one other of the routers, an average path loss of signal strength; (b) optimize, for at least the one router, multipath parameters in a radio-frequency signal propagation equation using the average path loss for each of the at least one other of the routers and known distance between the router and each of the at least one other of the routers; and (c) determine the position of location of the tag using at least the optimized multipath parameters.
Abstract: A real-time location system and method for a wireless network includes, in one embodiment: (a) obtaining received signal-strength indicator measurements between stationary routers and mobile devices; (b) determining the relative angles of mobile devices from stationary routers using directional antenna systems; and (c) using signal strength and angle information to calculate the location of mobile devices.
Type:
Grant
Filed:
March 22, 2010
Date of Patent:
November 13, 2012
Assignee:
Buzby Networks, LLC
Inventors:
Erik J. Davidson, Sven G. Bilén, Daniel R. Weiss, Nicholas E. Platt, Erik D. Weir
Abstract: A real-time location system and method for a wireless network includes, in one embodiment: (a) obtaining received signal-strength indicator measurements between stationary routers and mobile devices; (b) determining the relative angles of mobile devices from stationary routers using directional antenna systems; and (c) using signal strength and angle information to calculate the location of mobile devices.
Type:
Application
Filed:
March 22, 2010
Publication date:
September 23, 2010
Applicant:
BUZBY NETWORKS, LLC
Inventors:
Erik J. Davidson, Sven G. Bilén, Daniel R. Weiss, Nicholas E. Platt, Erik D. Weir