Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1990-03-23
1991-10-22
Pellinen, A. D.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187128, B66B 118
Patent
active
050587110
ABSTRACT:
A method and apparatus for group-supervising an elevator system according to this invention consists in predicting the position of operating cages after the lapse of a predetermined time, detecting an unoccupied cage and tentatively setting the standby position thereof, so as to predict the position of unoccupied cages after the lapse of the predetermined time under the condition that the detected unoccupied cage is run to the set position and is caused to stand by there, predicting, from the positions of the cages, the number of cages which will lie in certain floors or certain floor zones after the lapse of the predetermined time and estimating the numbers of cages in association with the floors, whereby the floor in which the unoccupied cage is to stand by is selected.
REFERENCES:
patent: 3831715 (1974-08-01), Matsuzawa et al.
patent: 3895692 (1975-07-01), Yeasting
patent: 4503941 (1985-03-01), Takabe
patent: 4669579 (1987-06-01), Ookubo
patent: 4846311 (1989-07-01), Thangavelu
patent: 4875554 (1989-10-01), MacDonald et al.
Duncanson Jr. W. E.
Mitsubishi Denki & Kabushiki Kaisha
Pellinen A. D.
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