B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
364/15
B66B 1/14 (2006.01) B66B 1/18 (2006.01) B66B 1/20 (2006.01)
Patent
CA 1189990
INVENTOR: JORIS SCHR?DER INVENTION: GROUP CONTROL FOR ELEVATORS CONTAINING AN APPARATUS FOR CONTROLLING THE DESCENT PEAK TRAFFIC ABSTRACT OF THE DISCLOSURE By means of the group control the average time losses for the passengers resulting from the waiting period at the storeys and the return travel time are minimized. Therefore, the number of entering stops causing a minimum of time losses is determined per elevator cabin on the basis of calculations. The number of entering stops is stored in monitoring or control counters by means of which the allocation of descent storey calls is limited to the number stored for each cabin. The descent storey calls are combined by means of a switching circuit to form groups of chronologically inputted or incoming storey calls of a volume corresponding to the number of storey calls respectively stored in the monitoring or control counter. In the case of an increase in the storey calls, the earliest group of storey calls is first increased and the latest group of storey calls last. The increase of numbers in the group occurs by transfer of a storey call from the next later group of storey calls and the latest storey call is allocated to the latest group of storey calls. Thus, groups of storey calls are formed, each of which have the same size until the control counting state or level of the monitoring or control counter is reached. The groups of storey calls are allocated to the different cabins such that the average time losses of the passengers become a minimum. - 2 -
423910
Ag Inventio
Johnson & Hicks
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