Flash and voice warning system

Details Flash and voice warning system Flash and voice warning system

1998-11-06

1999-11-23

Wu, Daniel J.

Communications: electrical

Condition responsive indicating system

Specific condition

34028605, 340331, 340332, 340692, 3406931, G08B 1712

Patent

active

059907967

ABSTRACT:
A flash and voice warning system generally comprises a power supply with charging circuit, a smoke sensor power supply and auto reset circuit, a smoke sensor (or manual operation), a circuit for converting current to voltage, a single-chip microprocessor, a 60 Hz square wave generator, a control circuit, a buffer, a current amplifier, a high-voltage circuit, N-discharge tube circuits, N-triggering circuits, a flash lamp direction control circuit, and a voice circuit. The smoke sensor is arranged in an appropriate position of a building and the other circuits are mounted within a control box made of fire-proof material. Hence, the flash and voice warning system for fire accidents can direct people where to flee from the fire in case of fire accidents.

REFERENCES:
patent: 4816809 (1989-03-01), Kim
patent: 4881058 (1989-11-01), Berry, III
patent: 5291183 (1994-03-01), Chiang
patent: 5696487 (1997-12-01), Choi
patent: 5724020 (1998-03-01), Hsu

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