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SYSTEM AND METHOD FOR MONITORING VEHICLES ON A ROADWAY

  • US 20090024309A1
  • Filed: 07/16/2007
  • Published: 01/22/2009
  • Est. Priority Date: 07/16/2007
  • Status: Active Grant
First Claim
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1. A system for monitoring vehicles on a roadway, said system comprising:

  • a plurality of RFID tags affixed at various pre-designated locations along a roadway, wherein each of said RFID tags is encoded with RFID tag information that may be used to determine a physical location of any of said RFID tags on said roadway;

    a first RFID scanner installed on a first vehicle to wirelessly interrogate said RFID tags as said first vehicle travels on said roadway and/or to wirelessly receive said RFID tag information from said RFID tags as said first vehicle encounters any of said RFID tags on said roadway;

    a first transceiver installed in said first vehicle and operatively connected to said first RFID scanner to receive said RFID tag information from said first RFID scanner and to re-encode and transmit at least said RFID tag information wirelessly as at least a first RF signal;

    at least one roadside repeater station to wirelessly receive at least said first RF signal from said first transceiver and to re-transmit the information encoded in at least said first RF signal; and

    a remote central tracking station to receive and process at least said re-transmitted information from said roadside repeater station in order to at least track a position of at least said first vehicle on said roadway.

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