Patent ID: 7817046
Filing Date: 2010-10-19
Classification: A61B,G01V,G06Q,G07C,G08B,G16H,H01Q

Abstract:
1. A system for tracking and auditing the movement of persons in a facility, said system comprising: a first network having a plurality of passive receivers, each of said passive receivers having an input for receiving an identification signal, each of the persons in the facility having an associated identification signal, and each of said passive receivers including an output for outputting an output signal for each of said identification signals, each passive receiver having a scanning antenna installed around a perimeter of a passageway in the facility, the plurality of scanning antennas being located throughout the facility; a plurality of transmitters, each of the persons wearing one of said transmitters, and each of said transmitters transmitting the identification signal associated with the person; a controller having an input port for receiving the output signals, and including a component for generating a temporal record for each of the persons in response to the detection of said identification signal of the person by one or more of said passive receivers; a second network having a plurality of active transceivers, each of said active transceivers having a poling transmitter for transmitting a periodic poling request to said transmitters, and each of said active transceivers having a poling receiver for receiving identification signals in response to said poling requests; and said controller further including an interface for receiving said poled identification signals, and having a component for generating an audit record for each of said transmitters in response to said poling request.