Apparatus for elevator group control

Details Apparatus for elevator group control Apparatus for elevator group control

2005-12-27

2005-12-27

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With call registration means

Shared by plural load supports

C187S387000, C187S902000

Reexamination Certificate

active

06978863

ABSTRACT:
In an apparatus for elevator group control which performs group management of a set of elevators, the set consisting of an upper car and a lower car which are disposed in a vertical relation within one elevator shaft and which ascend and descend independently, the floors are classified so that a floor communicating with an entrance of a building is classified as a main floor for the lower car, a floor communicating with an entrance of the building above the main floor for the lower car is classified as a main floor for the upper car, a lower-floor portion of the shaft is classified as a lower-car priority zone, an upper-floor is classified as an upper-car priority zone, and an intermediate-floor portion is classified as a common-use zone of the upper car and the lower car. A hall call is assigned to the upper car or the lower car according to the classification to which the hall in question belongs. In each of the priority zones, the upper car or the lower car is preferentially brought into service. In the common-use zone, after the existence or nonexistence of interference with a counterpart car is determined, the upper car or the lower car is caused to make an entry and is brought into service and, after a response, the upper car or the lower car is caused to escape from the common-use zone and is caused to retreat to an escape floor.

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