Self-locating devices via highly directional RFID tags in...

Details Self-locating devices via highly directional RFID tags in... Self-locating devices via highly directional RFID tags in...

2007-11-13

2007-11-13

Holloway, Edwin C. (Department: 2612)

Communications: electrical

Continuously variable indicating

With meter reading

C340S005910, C705S014270, C235S383000

Reexamination Certificate

active

10967763

ABSTRACT:
A monitored area is provided multiple RFID tags placed at defined coordinates/locations throughout the extended area. These RFID tags respond to receipt of a RF signal by transmitting/broadcasting their unique identifier (ID) within the specific area in which the tag is located. A device, whose location within the monitored area is desired, is equipped with an RFID interrogating device, such as an RF transceiver, which periodically broadcasts RF interrogation signals. The multiple RFID tags are positioned at specific areas within the environment to allow the RF interrogating device to (1) receive the RFID signal and (2) utilized the received data to independently determine the device's location.

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