Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1988-06-27
1989-03-21
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340539, 340572, 343720, 343826, 343831, 343893, G08B 2100, G08B 1318
Patent
active
048147516
ABSTRACT:
A patient tracking system is employed to determine when an occupant leaves the confines of a nursing home or similar institution. Each patient has a transmitter strapped to his or her wrist which emits a signal having a distinctive radio frequency. The corridors of the nursing home include a plurality of sharp receiving antenna elements connected together in series by a coaxial cable. A scanning radio receiver is attached to the antenna system. The scanning radio receiver determines when the strength of the signal received by the antenna elements falls below a predetermined level at which point an alarm is sounded. If the alarm sounds, an attendant uses a second, directional receiver to track the patient who may have wandered away before the patient hurts himself or herself.
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Burke Michael D.
Hawkins Robert E.
Swann III Glen R.
Wildlife Materials, Inc.
Woodbridge Richard C.
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