Elevator system having improved crowd service based on empty car

Details Elevator system having improved crowd service based on empty car Elevator system having improved crowd service based on empty car

1993-10-08

1994-09-06

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

187126, B66B 118, B66B 120

Patent

active

053450493

ABSTRACT:
A method for controlling the dispatching of elevator cars, and apparatus for accomplishing the method. The method includes the steps of (a) receiving a hall call from a floor landing; (b) determining a current passenger load of an elevator car; (c) determining if a crowd signal is generated for the floor landing; and, if it is determined that a crowd signal is generated for the floor landing, (d) determining, from the current passenger load, if the elevator car is EMPTY. If it is determined that the elevator car is EMPTY, the method further includes the steps of (e) assigning an Empty Car Bonus to the elevator car; and (f) employing the Empty Car Bonus value in determining a Relative System Response for the elevator car. The Relative System Response is a function of a plurality of bonuses and penalties. The use of the invention increases the efficiency of the elevator system and serves to decrease the waiting time for persons waiting behind the hall call by increasing the probability of an empty car being assigned to a hall call having a crowd waiting behind the hall call.

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Barney, G. C. & Dos Santos, S. M. Lift-Traffic Analysis Design and Control, publ. by Peter Peregrinus Ltd., Stevenage, England, pp 85-147.

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