Patent ID: 9418531
Filing Date: 2016-08-16
CPC Classification: G01S,G06K,G08B,H04L,H04W

Claim Text:
1. A location tracking method, the method comprising: receiving, by at least one server, a first list of identification information and a first list of location information corresponding to a first set of a plurality of detected wireless electronic tags detected by a first device, the first set of the plurality of detected wireless electronic tags being within a detectable zone of the first device; comparing, by the at least one server, a second list of identification information of a second set of a plurality of wireless electronic tags and the first list of identification information of the first set of the plurality of detected wireless electronic tags, and updating a second list of location information corresponding to the second set of the plurality of wireless electronic tags based on the first list of identification information and the first list of location information of the first set of the plurality of detected wireless electronic tags, wherein location information corresponding to a wireless electronic tag within the second list of location information is updated only when a subsequently detected location of the wireless electronic tag exceeds a predetermined distance from a previously detected location of the wireless electronic tag; receiving, at the at least one server, a request from a second device regarding a first location information of a first wireless electronic tag having a first identification information; determining, at the least one server, whether the first identification information is included in the second list of identification information; and transmitting, from the at least one server to the second device based on said determining that the first identification information is included in the second list of identification information, the first location information of the first wireless electronic tag.