Patent ID: 7164354
Filing Date: 2007-01-16
Classification: G07C,G08B

Abstract:
1. A child protection system for use in a facility in conjunction with monitoring units that are placed on a person, the monitoring units having a radio frequency tag attached thereto, each tag including an antenna for use in detecting the presence of the monitoring unit by receiving an interrogation signal and returning a response signal, and an integrated circuit connected to the antenna for storing a tag identification and for outputting the tag identification with the response signal upon interrogation of the tag in the facility, the child protection system preventing the person from leaving the facility alone or without a designated escort and comprising: a registration device for registering and de-registering the monitoring unit with the tag identification, user information and security codes near an entrance or exit of the facility; a first radio frequency reader for monitoring a zone in the facility for disturbances in the form of a response signal caused by the presence of the radio frequency tag within the zone, said first radio frequency reader outputting an interrogator output signal upon detection of the radio frequency tag in the zone via the response signal, the interrogator output signal including the tag identification stored in the integrated circuit; a local server communicatively coupled to the registration device and the first radio frequency device, said local server including a local database that stores information about the first radio frequency reader, the tag identification, the user information and the security codes, at the facility; a system-wide server communicatively coupled to said local server, said system-wide server including a subscriber database that stores information about the facility and other such facilities that use the child protection system including user information and current registrations; and an alarm triggered upon the detection of the radio frequency tag of a registered monitoring unit in the zone to prevent the person from leaving the facility alone or without the designated escort.