Patent ID: 6373389
Filing Date: 2002-04-16
Classification: G06K,G06Q,G07F,G07G,G08B

Abstract:
A system for monitoring and tracking at least one item in an environment, comprising:at least one transmitter assigned a unique identification number for the item and attached to the item; at least one receiver receiving a first data packet which includes said unique identification number from said transmitter; at least one node computer controlling said receiver, receiving a second data packet which includes said unique identification number and a direction-of-travel code from said receiver, and determining a location of the item from said direction-of-travel code: a controller computer controlling said node computer, receiving said unique identification number and said location of the item from said node computer, and storing said unique identification number and said location of said item; and a central computer facility coordinating said controller computer and for collecting and storing said unique identification number and said location of said item for exportation from said system.