Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1982-05-06
1985-07-23
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340531, 340533, 340506, 340332, 340628, G08B 108
Patent
active
045311145
ABSTRACT:
An intelligent alarm system includes exit sign units having couplings to a smoke sensor and heat sensor for input information, a speech synthesizer and a strobe light to provide output information and a communication unit to provide communication coupling between exit sign units on a single floor and between interfloor interfaces and a central monitoring unit. The exit sign units provide at least two indications to the occupants. First a strobe light to flash at exits with sufficient intensity to draw attention to the exit and to penetrate smoke in a smoke filled hallway. Second, a speech synthesizer which provides verbal instructions to floor occupants according to the emergency situation. Each exit sign unit is operative independently of the central monitoring unit to set off a local alarm. The system is operative so that the central console unit must respond with a cancel command within a predetermined period of time to prevent the interfloor interface from communicating to all exit sign units under its supervision to set off a general floor alarm. Precise instructions may be formulated and verbalized through the speech synthesizers.
REFERENCES:
patent: 3810170 (1974-05-01), Zinsmeister
patent: 4023146 (1977-05-01), Carroll
patent: 4074225 (1978-02-01), Vandeweghe
patent: 4141006 (1979-02-01), Braxton
patent: 4347499 (1982-08-01), Burkman, Sr. et al.
patent: 4367458 (1983-01-01), Hackett
patent: 4392125 (1983-07-01), Iwata
Slater Michael
Topol Peter
Crosland Donnie L.
Safety Intelligence Systems
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