Intrusion detection system for underground/above ground applications using radio frequency identification transponders
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United States of America Patent
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Jun 1, 2010
Issued Date -
N/A
app pub date -
Mar 4, 2008
filing date -
Mar 5, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is directed to an underground as well as above ground system and method of determining the intrusion into a security zone. One or more transceivers would transmit a unique electromagnetic signal which would power a response from one or more RFID transponders. Each of the transponders would transmit a unique code to the transceiver indicating that there has been no intrusion in the vicinity of that transponder. Failure of a transponder to receive a signal produced by a transponder, would indicate the existence of an intrusion. The transponders as well as the transceivers can be provided in a PVC pipe buried in the ground, or provided in or on a structure located on or above the ground.
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Cited Art Landscape
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