System and method for scheduling elevator cars using...

Details System and method for scheduling elevator cars using... System and method for scheduling elevator cars using...

2006-03-27

2009-06-16

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With call registration means

C187S247000

Reexamination Certificate

active

07546905

ABSTRACT:
A method schedules cars of an elevator system, the elevator system including a set of cars, and a set of hall calls. For each car, a waiting time is determined independently if the hall call is the only hall call assigned to the car. For each car, a mutual delay ΔW(h|g) is determined for each possible pair of unassigned hall calls h and assigned hall calls g. The waiting time and mutual delays are summed. Then, the assignments are made to the set of cars so that the sum is a minimum.

REFERENCES:
patent: 4991694 (1991-02-01), Friedli
patent: 5083640 (1992-01-01), Tsuji
patent: 5529147 (1996-06-01), Tsuji
Nikovski et al., “Decision-theoretic group elevator scheduling,” 13thInternational Conference on Automated Planning and Scheduling, Jun. 2003.

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