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1. (WO2018038970) SYSTEMS AND METHODS FOR LOCATING ITEMS WITHIN A FACILITY

Pub. No.:    WO/2018/038970    International Application No.:    PCT/US2017/046932
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Wed Aug 16 01:59:59 CEST 2017
IPC: G01S 13/75
Applicants: TYCO FIRE & SECURITY GMBH
TRIVELPIECE, Steve, E.
RIGGERT, Eric Floyd
MC CAULEY, Ned
Inventors: TRIVELPIECE, Steve, E.
RIGGERT, Eric Floyd
MC CAULEY, Ned
Title: SYSTEMS AND METHODS FOR LOCATING ITEMS WITHIN A FACILITY
Abstract:
Systems and methods for finding tags which are unreadable at a particular time. The methods comprise: performing first operations by a first mobile tag reader to read tags at a first time and to determine physical locations of the tags which were read at the first time; and performing second operations by the first mobile tag reader or a second mobile tag reader at a second later time for determining a first geographic area in which a first tag which is unreadable resides. The second operations comprise: analyzing tag read data associated with the first operations to identify second tags which were read along with the first tag on a previous occasion; and selecting the first geographic area to comprise a second geographic area defined by the physical locations of the second tags which were determined during the first operations by the first mobile tag reader.