Elevator system

Details Elevator system Elevator system

B - Operations, Transporting

66

B

364/1

B66B 1/14 (2006.01) B66B 5/02 (2006.01)

Patent

CA 1201828

18 ABSTRACT OF THE DISCLOSURE An elevator system, and method of operating same, in which emergency back-up service is provided all floors of a building when normal service is degraded, such as due to a dispatcher malfunction, a communication fail- ure between the elevator cars of a bank of cars and a group supervisory controller or dispatcher, failure of the hall call circuits, and the like. When the emergency service is provided, a different initial block of floors is assigned to each elevator car, and as each elevator car completes a round trip its block of assignments are re- vised in a rotational manner. Thus, all floors are guar- anteed service as long as at least one elevator car is operational.

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