The RFID Intrusion Detection System consists of two (2) parallel cables spaced at intervals from 2 - 8 feet apart. A transmitter generates an RF signal and transmits this signal down the Power Transmission Cable. An electromagnetic field is generated by this transmission. Intensity of the field is adjustable by varying the power source. The electromagnetic field is thus extended or restricted. The Data Cable consists of passive RFID proximity chips incorporated into the cable at intervals of 6-24 inches and a System Controller. The power cable creates an electromagnetic field that enables the RFID chips through EM coupling. Each chip is encrypted with an address and through EM coupling is powered to broadcast its data. The data stream is collected by the System Controller and through software can interpret the chip address and assign a specific location. The System Controller monitors all RFID chips reporting and those RFID chips not reporting due to interference within the EM field. The result is an alarm condition indicating an intrusion has occurred at a specific point. The System Controller can determine the time, date, location and duration of an intrusion as well as the cutting of either the Power Transmission Cable or the Data Cable and "pin point" the event.
Other issued patents: Multi-channel IR, PIN/Proximity Card and RFID Gun Safety.
02/09/2006
RFID Intrusion Detection System US Patent #7,069,160
Intrusion detection devices typically consist of a single wire or multiple cables attached to a fence that sense vibration, changes in acoustics or cutting. These cables are best on a metal fence and are ineffective on solid walls made of concrete or brick. Other buried cable systems generate a magnetic field and sense an intrusion into the field but are not adaptable to horizontal surfaces.
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