Elevator – industrial lift truck – or stationary lift for vehicle – With call registration means – Shared by plural load supports
Patent
1995-11-30
1998-09-15
Nappi, Robert
Elevator, industrial lift truck, or stationary lift for vehicle
With call registration means
Shared by plural load supports
187382, B66B 118
Patent
active
058082476
ABSTRACT:
A system for controlling elevator cars in a building having a plurality of floors includes a group controller for controlling operation of the elevator cars. The group controller predicts lobby single source traffic for determined periods. When the predicted traffic is below certain limit, cars are assigned to a lobby hall call on demand after hall call registration. When the predicted traffic is above certain limit, cars are assigned to the lobby hall call at intervals. Accordingly, car assignment is scheduled at those intervals. The schedule interval is varied based on predicted traffic and predicted round trip time of the cars. The cars are assigned to hall calls if they arrive within a schedule window. The schedule window comprises a lower and an upper tolerance that are selected around a scheduled time.
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Nappi Robert
Otis Elevator Company
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