Elevator traffic control including destination grouping
First Claim
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1. A method of controlling elevator traffic, comprising:
- determining a plurality of desired passenger destinations before the passengers enter an elevator car; and
grouping passenger-to-car assignments according to the determined destinations if a selected elevator traffic condition exists and such that an elevator car travels to only one desired passenger destination after departing from an originating floor.
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Abstract
An elevator traffic control technique includes destination grouping that is selectively implemented during selected traffic condition. One example includes determining when up peak traffic conditions exist. If so, the passenger-to-car assignments are grouped based upon the passengers'"'"' desired destinations, which are determined before the passengers enter elevator cars, Arranging sectors responsive to current traffic conditions in one example is based upon elevator passenger traffic patterns over the most recent five minutes.
40 Citations
19 Claims
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1. A method of controlling elevator traffic, comprising:
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determining a plurality of desired passenger destinations before the passengers enter an elevator car; and grouping passenger-to-car assignments according to the determined destinations if a selected elevator traffic condition exists and such that an elevator car travels to only one desired passenger destination after departing from an originating floor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling elevator traffic, comprising:
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determining a plurality of desired passenger destinations before the passengers enter an elevator car; grouping passenger-to-car assignments according to the determined destinations if a selected elevator traffic condition exists; determining a first number of requests corresponding to desired passenger destinations in an up direction from an originating floor, a second number of requests corresponding to desired passenger destinations in a down direction toward the originating floor and a third number of requests corresponding to desired passenger destinations corresponding to travel between floors above the originating floor, respectively, within a selected time interval; and determining if the selected elevator traffic condition exists based on the determined number of requests and the elevator system capacity for the selected time interval.
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10. A method of controlling elevator traffic, comprising:
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determining a plurality of desired passenger destinations before the passengers enter an elevator car; grouping passenger-to-car assignments according to the determined destinations if a selected elevator traffic condition exists; determining a maximum number of sectors based upon a configuration of a corresponding elevator system; determining a number of requests corresponding to the plurality of determined desired passenger destinations during a selected time interval corresponding to up peak traffic; determining a handling capacity of the corresponding elevator system during the selected time interval; determining a number of elevators from the corresponding elevator system available to serve the passengers; determining a percentage of up peak traffic requests from the determined number of requests from the selected time interval; and determining a current number of sectors to be used if the selected elevator traffic conditions exists by multiplying the determined percentage of up peak traffic times the determined maximum number of sectors multiplied by the determined number of requests corresponding to up peak traffic divided by the determined handling capacity. - View Dependent Claims (11, 12, 13, 14)
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15. A method of controlling elevator traffic, comprising:
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determining a plurality of desired passenger destinations before the passengers enter an elevator car; grouping passenger-to-car assignments according to the determined destinations if a selected elevator traffic condition exists; selecting a sector from a current set of sectors that includes a determined desired passenger destination; determining whether an elevator car is currently assigned to the selected sector; determining whether a first car assigned to the selected sector has capacity to service a request for the desired passenger destination; and designating the first car in the selected sector as a best sector car if the first car has the capacity. - View Dependent Claims (16, 17, 18)
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19. A method of controlling elevator traffic, comprising:
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determining a plurality of desired passenger destinations before the passengers enter an elevator car; grouping passenger-to-car assignments according to the determined destinations if a selected elevator traffic condition exists; determining an average time between requests for at least some of the determined plurality of desired passenger destinations that are all within a single sector; determined an expected number of passengers to board an elevator car at an origination floor; and extending a wait time for the elevator car at the origination floor if the determined average time indicates that another desired passenger destination request will be received for that sector within a selected time interval and the elevator car has capacity to receive at least one more passenger.
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Specification