RFID tags, methods and systems for total asset management, in-transit
visibility and bio-metric verification and authorization. The system
comprises an active, multi-modal, bi-directional RFID tag having a
primary communication mode RF transceiver and a secondary mode IR/US
transceiver. The tag includes sensors, such as bio-metric, and memory
containing user bio-metric data. A reader and illuminator(s), preferably
IR and/or US, are communicatively coupled with the tag and adapted to
provide command and control signals to the tag and receive
data/information from it. The user's bio-metric data is read by the
sensor, compared to the data base and verification communicated to an
access or point of sale device. The tag looks for illuminators and
reports to the reader the IDs of those it sees. The detection history
permits tracking and locating tagged objects or persons, such as theme
park guests. If no illuminator signal is seen, the tag sends a special
signal.