Allocating landing calls in an elevator group using a cost...

Details Allocating landing calls in an elevator group using a cost... Allocating landing calls in an elevator group using a cost...

2007-10-02

2007-10-02

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With call registration means

Shared by plural load supports

C187S387000

Reexamination Certificate

active

11406234

ABSTRACT:
An elevator group control method for the allocation of calls, in which method a given service time of the elevator group is assigned a target value. The service time may be passenger waiting time, call time, traveling time, riding time or an average value of one of these quantities. The method aims at fulfilling the assigned target value in such a way that the energy consumption of the elevator system is minimized. Optimization is implemented using a model of the elevator system, by means of which the desired service time can be predicted. This prediction is utilized in a controller controlling the optimizer. This makes it possible to improve the construction and operation of the controller and optimizer so that the energy consumption of the elevator system can be reduced while the condition regarding the target service time is fulfilled at the same time.

REFERENCES:
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patent: 2004/0060776 (2004-04-01), Tyni et al.
patent: WO 02/066356 (2002-08-01), None

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