Real-time method and system for locating a mobile object or person in a tracking environment

摘要

A real-time method and system for locating a mobile object or person in a tracking environment with a plurality of sensors. The method includes a tracking tag attachable to a person or object. The method includes modulating a first carrier signal with a first packet including a first set of data. The method includes transmitting the signal having a first precision and range from the tag to a nearest sensor. The method further includes repeating the steps until a modulated second signal is received at the tag from the nearest sensor within a time period. The second signal contains a second packet with second set of data and has a second precision range within the environment. The second signal is received at the tag within the time period to obtain the second packet. The location of the tag is determined based on the second packet of the received second signal.