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Person-Locator System Based On Wristband Radio TranspondersComputerized system based on wristband radio frequency (RF), passive transponders is being developed for use in real-time tracking of individuals in custodial institutions like prisons and mental hospitals. Includes monitoring system that contains central computer connected to low-power, high-frequency central transceiver. Transceiver connected to miniature transceiver nodes mounted unobtrusively at known locations throughout the institution. Wristband transponders embedded in common hospital wristbands. Wristbands tamperproof: each contains embedded wire loop which, when broken or torn off and discarded, causes wristband to disappear from system, thus causing alarm. Individuals could be located in a timely fashion at relatively low cost.
Document ID
19950071248
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Mintz, Frederick W.
(Caltech)
Blaes, Brent R.
(Caltech)
Chandler, Charles W.
(Caltech)
Date Acquired
August 17, 2013
Publication Date
December 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 12
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-19280
Accession Number
95B10644
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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