Group management control method and apparatus for an elevator system

A group-management control apparatus for an elevator system with plural elevators capable of serving plural floors, comprising:

• hall call devices provided in respective elevator halls on respective floors for generating respective hall calls;
• individual elevator control means provided for respective elevators, each of the individual elevator control means individually controlling a service operation of a respective elevator in response to an operation instruction supplied thereto;
• and
• group-management control means for allotting the hall calls to adaptive elevators in accordance with a predetermined hall call allotment algorithm and supplying respective operation instructions to the individual elevator control means in accordance with the allotted hall calls so that a desired control target or targets requested by an operator are achieved;
• wherein said group-management control means includes a processor which provides plural kinds of the predetermined hall call allotment algorithm in advance, each allotment algorithm having a particular evaluation function including evaluation indexes of control targets and variable control parameters associated with the respective indexes, the control parameters being determined on the basis of a result of simulating a service operation of the elevators using each allotment algorithm, wherein the processor selects one of the plural kinds of the predetermined hall call allotment algorithm by performing a reasoning operation in accordance with a reasoning rule selected from among a plurality of reasoning rules empirically provided in advance on the basis of the desired control target or targets and an operating state of the elevators.