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Group managing system for elevator cars

  • US 5,780,789 A
  • Filed: 06/25/1997
  • Issued: 07/14/1998
  • Est. Priority Date: 07/21/1995
  • Status: Expired due to Fees
First Claim
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1. A system for group managing a plurality of elevator cars according to a group management algorithm including a plurality of parameters, said system including:

  • a group management apparatus for implementing a group management algorithm for controlling a plurality of elevators and for outputting a seeking condition signal, the seeking condition signal including at least one of;

    traffic flow specification data, elevator car specification data, and seeking command data;

    a seeking apparatus for seeking an optimum set from a plurality of sets, said seeking apparatus comprising;

    memorizing means for storing a plurality of sets and group management performance data for each set, each set including a plurality of parameter values to be input into the group management algorithm, the group management performance data including information regarding a waiting time of an elevator user, peak and average boarding time data, power consumption data, responding rate data, and prediction data resulting from execution of the group management algorithm using the respective sets;

    producing means for selecting one or plural sets as a parent or parents from said memorizing means and for producing one or plural new sets inheriting part of the characteristics of the parent or parents;

    estimating means for estimating a result of execution of the group management algorithm using each new set in response to the seeking condition signal, the result of executing being group management performance data for each new set, the group management performance data including information regarding a waiting time of an elevator user, peak and average boarding time data, power consumption data, responding rate data, and prediction data resulting from execution of the group management performance algorithm using the respective sets;

    selecting means for improving the plurality of sets stored in said memorizing means through both of addition of the new sets to said memorizing means based on the group management performance data for each new set and deletion of impaired sets from said memorizing means based on the group management performance data of each impaired set, the addition of the new sets including storing the group management performance data corresponding to each new set with each new set stored in said memorizing means, the deletion of the impaired sets including deleting the group management performance data corresponding to each impaired set with each set deleted from said memorizing means; and

    extracting means for extracting an optimum set based on the group management performance data from among the plurality of sets stored in said memorizing means.

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