Central monitoring and alarming system

Details Central monitoring and alarming system Central monitoring and alarming system

1989-10-03

1991-01-29

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

340310R, 34082516, 34082517, 364550, G05B 2302, H04M 1104

Patent

active

049889885

ABSTRACT:
A central monitoring and alarming system for monitoring and alarming an abnormal condition, for example fire and gas leakage, includes a central monitoring station having a memory device and a signal processor, plural terminals returning information detected by sensors included therein and a supporting terminal unit for specifying a proper address assigned to the terminal units respectively so that an operator can reliably know an address without looking at an address setter disposed in a terminal unit.

REFERENCES:
patent: 3921139 (1975-11-01), Hardesty, Jr. et al.
patent: 4329643 (1982-05-01), Neumann et al.
patent: 4402055 (1983-08-01), Lloyd et al.
patent: 4535332 (1985-08-01), Miller et al.
patent: 4535401 (1985-08-01), Penn
patent: 4573115 (1986-02-01), Halgrimson
patent: 4658243 (1987-04-01), Kimura et al.
patent: 4697180 (1987-09-01), Swanson
patent: 4823290 (1989-04-01), Fasack et al.

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