Group control for elevators with double cabins

B - Operations – Transporting – 66 – B

Patent

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364/1

B66B 1/18 (2006.01) B66B 1/14 (2006.01) B66B 1/20 (2006.01)

Patent

CA 1216084

INVENTOR: JORIS SCHR?DER INVENTION: GROUP CONTROL FOR ELEVATORS WITH DOUBLE CABINS ABSTRACT OF THE INVENTION With this group control the allocation of the individual cabins of double cabins of an elevator group to stored storey calls can be optimized with respect to time, and newly arriving storey calls can be immediately allocated. A computer containing a microprocessor is provided for each elevator and computes the service costs corresponding to the waiting times of passengers for each cabin of the related double cabin with reference to each storey. The service costs are reduced if calls of identical direction are present for a storey for which the computation is carried out and a directly adjacent storey and/or there is coincidence of cabin calls and such storeys. The service costs for both cabins of a double cabin are compared and the lesser costs are stored in a cost storage of the relevant elevator. During a cost comparison cycle the service costs of all the elevators are compared on a storey-to-storey basis by means of a comparison device, and an allocation instruction is storable in an allocation storage of the related elevator with the least service costs. The allocation instruction designates that storey to which the relevant cabin of the double cabin is optimally assigned with respect to time. - 2 -

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