Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1991-07-31
1993-06-08
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340572, 34082531, 379 38, G08B 2100
Patent
active
052183440
ABSTRACT:
A method and system for monitoring personnel in an institution such as a correctional facility, hospital, school, military installation, and the like, includes a computer connected with one or more stationary transceivers in a defined area of the facility, and a portable transceiver unit worn by each individual who is to be monitored. The computer sends command signals to the stationary transceivers, which broadcast interrogation signals to the portable units. The portable units are configured to respond only to interrogation signals unique to that individual, and upon decoding an interrogation signal incident thereon, broadcast a response signal to the stationary transceivers. The stationary transceivers relay corresponding data to the computer, where the data is analyzed to provide an indication of the number, location and identity of the individuals. The portable transceiver units have an emergency alarm button which may be actuated by the individual in the event of an emergency, and selected portable transceiver units may also be configured to be sensitive to proximity between them. In addition, the portable units may be coded for access to vending apparatus.
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Lambert Dennis H.
Swann III Glen R.
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