Security system for centralized monitoring and selective reporti

Details Security system for centralized monitoring and selective reporti Security system for centralized monitoring and selective reporti

1976-07-14

1979-02-20

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

With particular system function

179 5R, 340524, 340541, 340584, G08B 1900

Patent

active

041410068

ABSTRACT:
A security system consists of a central digital processor system, e.g., a general purpose computer, to which plural remote units are connected by a digital communications link, e.g., telephone. The remote units include plural alarm sensors such as intrusion and heat sensors. In a data base of the central processor system are stored segments of data associated uniquely with remote premises having the remote units. The processor system includes a terminal for delivering alarm message reports, such as to a law enforcement agency. Specifically, the remote units have interrogation circuitry for interrogating the sensors to determine if they have been tripped, logic circuitry for causing transmission to the central processor system via the communications link of a sensor alarm data message in digital format signifying the sensor address and its tripped status. The central processor system includes correlation means for correlating the data message with the data base to determine logical validity or invalidity of the message. Means responsive to logical validity determination causes portions of the data message and corresponding segments of the data base to be assembled into an alarm message report for delivery by said terminal. SU

REFERENCES:
patent: 3641530 (1972-02-01), Schoenwitz
patent: 3842208 (1974-10-01), Paraskevakos
patent: 3855456 (1974-12-01), Summers et al.
patent: 4001785 (1977-01-01), Miyazaki et al.

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