Personnel position indicator system

• Main Authors: JOHN HUDSON, ROGER WILLIAM LESLIE HOYLE
• Format: Patent
• Language: English
• Published: 14.03.1990
• Subjects: ALARM SYSTEMS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CHECKING-DEVICES; GENERATING RANDOM NUMBERS; ORDER TELEGRAPHS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TIME OR ATTENDANCE REGISTERS; VOTING OR LOTTERY APPARATUS

A personnel position indicator system supplies an automatic and periodic indication of the location of one or more security personnel engaged upon a perimeter patrol. The system includes a low power VHF transmitter 50, carried by a security person, and intermittently broadcasting a radio signal at f...