Elevator system having dynamic sector assignments

Details Elevator system having dynamic sector assignments Elevator system having dynamic sector assignments

1991-11-27

1994-05-31

Stephan, Steven L.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187138, 187127, B66B 118, B66B 120

Patent

active

053171144

ABSTRACT:
Method and apparatus is disclosed for operating an elevator system that includes a group of elevator cars servicing a plurality of floor landings divided into Sectors. The method includes the steps of, with a controller associated with each elevator car of the group, (a) determining when the elevator car has reached a Turn Around Point for returning the elevator car to a lobby; (b) initiating travel to the lobby; and (c) determining when the elevator car has reached a predetermined Sector Assignment Fixation Point. After reaching the predetermined Sector Assignment Fixation Point, the method further includes the steps of (d) communicating Sector-related information with other controller of other elevator cars of the group; and (e) based upon the communication, assigning to the elevator car a next Sector to be serviced after arrival at the lobby. A round-robin arbitration technique is disclosed for assigning Sectors among the elevator cars.

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1977 "Lift Supervisory Control Systems", G. C. Barney et al. Lift-Traffic Analysis Design and Control, Pub. P. Peregrinus Ltd., Chap. 3, pp. 85-147.

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