A location system and method for determining the location of a tagged item in
a
facility. In one embodiment, the location system includes a plurality of room transmitters
designed to be located throughout the facility. Each room transmitter has a unique
signature. The system also includes at least one item or location tag affixed or
otherwise associated with an item. Each tag is operable to send a signal having
information related to the signature of a room transmitter within the reception
range of the tag and information related to the identity of the tag. Signals from
the tags are received by one or more locating receivers. Each locating receiver
is operable to determine the identity of an item tag and the likely location of
the item tag within the facility based upon the signal from that tag. The invention
also provides a method of locating an item in a facility. In one embodiment, the
method includes positioning room transmitters in multiple areas within a facility;
configuring each room transmitter to generate a unique signature; fitting items
with a tag; configuring each tag to generate a signal having a location portion
and a signature portion; positioning a locating receiver within the facility; and
determining the likely location and identity of that tag based on the tag's signal.