SYSTEMS AND METHODS FOR OBJECT LOCALIZATION AND PATH IDENTIFICATION BASED ON RFID SENSING

摘要

A networked radio frequency identification system includes a plurality of radio frequency identification (RFID) tag readers, a computer in signal communication with the RFID tag readers over a network, and a software module for storage on and operable by the computer that localizes RFID tags based on information received from the RFID tag readers using a network model having endpoints and oriented links. In an additional example, at least one of the RFID tag readers includes an adjustable configuration setting selected from RF signal strength, antenna gain, antenna polarization, and antenna orientation. In a further aspect, the system localizes RFID tags based on hierarchical threshold limit calculations. In an additional aspect, the system controls a locking device associated with an access point based on localization of an authorized RFID tag at the access point and reception of additional authorizing information from an input device.

主权项

1. A radio frequency identification (RFID) system for localizing an RFID tag, the system comprising:
a plurality of radio frequency identification (RFID) tag readers; a computer in signal communication with the plurality of RFID tag readers over a network; a memory associated with the computer, the memory storing a plurality of location based endpoints, each of the endpoints being associated with one or more of the RFID tag readers; the memory further containing a software module operable by the computer to localize the RFID tag based on data received from the RFID tag readers; the software module further being configured to enable the computer to determine a preferred location for the RFID tag, the determination of a preferred location being a function of a prior rating assigned to the RFID tag or to an additional RFID tag.