Environmental abnormality detection apparatus

Details Environmental abnormality detection apparatus Environmental abnormality detection apparatus

1987-09-14

1989-01-10

Swann, Glen R.

Communications: electrical

Condition responsive indicating system

Specified housing

340584, 364184, G08B 2300, G05B 902

Patent

active

047976640

ABSTRACT:
An environmental abnormality detection apparatus has a detection portion for detecting a phenomenon such as a fire or gas leakage, and a signal processor such as a microcomputer or the like for determining whether an environmental abnormality has occurred in accordance with a detection signal from the detection portion and for generating an alarm signal when the abnormality occurs. A power source control circuit is provided to intermittently supply power to the signal processor and to stop power supply in accordance with an end of processing signal from the signal processor.

REFERENCES:
patent: 4491830 (1985-01-01), Miyabe
patent: 4673928 (1987-06-01), Guim
patent: 4734694 (1988-03-01), Umetsu et al.

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