Elevator – industrial lift truck – or stationary lift for vehicle – With call registration means – Shared by plural load supports
Reexamination Certificate
2006-03-21
2006-03-21
Salata, Jonathan (Department: 2837)
Elevator, industrial lift truck, or stationary lift for vehicle
With call registration means
Shared by plural load supports
C187S247000
Reexamination Certificate
active
07014015
ABSTRACT:
A method schedules cars of an elevator system in a building. The method begins execution whenever a newly arrived passenger presses an up or down button to generate a call for service. For each car, determine a first waiting time for all existing passengers if the car is assigned to service the call, based on future states of the elevator system. For each car, determine a second waiting time of future passengers if the car is assigned to service the call, based on a landing pattern of the cars. For each car, combine the first and second waiting times to produce an adjusted waiting time, The method ends by assigning a particular car having a lowest adjusted waiting time to service the call and minimize an average waiting time of all passengers.
REFERENCES:
patent: 4244450 (1981-01-01), Umeda et al.
patent: 4458787 (1984-07-01), Uetani
patent: 4669579 (1987-06-01), Ookubo
patent: 4982817 (1991-01-01), Tsuji
patent: 5058711 (1991-10-01), Tsuji
patent: 5146053 (1992-09-01), Powell et al.
patent: 6173816 (2001-01-01), Barker et al.
patent: 6394232 (2002-05-01), Iwata et al.
patent: 6401874 (2002-06-01), Siikonen
patent: 6672431 (2004-01-01), Brand et al.
patent: 6808049 (2004-10-01), Brand et al.
patent: 2001/0002636 (2001-06-01), Siikonen
Barney, “Elevator Traffic Handbook,” Spon Press, London, 2003, pp. 269-270.
Strakosch, “Vertical transportation: elevators and escalators,” John Wiley & Sons, Inc., 1998, pp. 150-151.
Bao, “Elevator dispatchers for down-peak traffic,” Technical Report, University of Massachusetts, Department of Electrical and Computer Engineering, Amherst, Massachusetts, 1994.
Nikovski et al., “Decision-theoretic group elevator scheduling,” 13thInternational Conference on Automated Planning and Scheduling, Trento, Italy, Jun. 2003.
Ujihara et al., “The revolutionary AI-2000 elevator group-control system and the new intelligent option series,” Mitsubishi Electric Advance 45:5-8, 1988.
Crites et al., “Elevator group control using multiple reinforcement learning agents,” Machine Learning, 33:235, 1998.
Bertsekas, “Dynamic Programming and Optimal Control,” Athena Scientific, Belmont, Massachusetts, 2000. vols. 2, pp. 261-264.
Bertsekas, “Dynamic Programming and Optimal Control,” Athena Scientific, Belmont, Massachusetts, 2000, vols. 1, pp. 18-24.
Brand Matthew E.
Nikovski Daniel N.
Brinkman Dirk
Curtin Andrew J.
Mitsubishi Electric Research Laboratories Inc.
Salata Jonathan
LandOfFree
Method and system for scheduling cars in elevator systems... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for scheduling cars in elevator systems..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for scheduling cars in elevator systems... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3552119