Elevator emergency control system

Details Elevator emergency control system Elevator emergency control system

1983-04-25

1984-11-13

Truhe, J. V.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

340 19R, B66B 500

Patent

active

044820321

ABSTRACT:
An emergency control system for use in an elevator system. When an emergency situation arises in an elevator car, an elevator passenger recites a code word. A microphone in the elevator car transforms the vocal signal to an electrical signal, and using a voice-recognition system, the spoken code word is compared with a code word stored in memory. If the spoken code word matches the stored code word, control of the elevator system is switched to an emergency mode. In this mode the elevator car is brought to a predetermined landing and an intercom system providing communication between the elevator car and the guard station is activated. At the predetermined landing, security personnel are available to render assistance to the elevator passenger when the elevator doors open.

REFERENCES:
patent: 2602524 (1952-07-01), Shirley
patent: 2776732 (1957-01-01), Eames
patent: 3388376 (1968-06-01), Magee
patent: 3677370 (1972-07-01), Devine
patent: 4144582 (1979-03-01), Hyatt
patent: 4388495 (1983-06-01), Hitchcock

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