Patent attributes
A tracking system that tracks persons and/or objects of interest without the need for triangulation techniques is disclosed. The tracking system utilizes very low power active radio frequency tags with limited effective broadcast range that operate only in the transmit mode with no need to establish two-way communication with any part of the system. The person or object of interest is provided with a radio frequency tag incorporating a unique identifier. Gateways connected to a common network interface are positioned relative to specific areas within the facility to be monitored. A computer connected to the same network as the gateways analyzes data relating to the strength of the of the radio frequency signals received by the radio frequency receivers from the radio frequency tags to determine if, and when, persons and/or objects of interest are present within particular subareas within the facility.
