Patent attributes
An elevator group management controller, that: predicts an arrival time each elevator car can arrive from a present position to a floor where a hall call is generated; estimates a travel distance for each car from its present position to stop in response to every car call to be handled by the car; calculates a waiting time with respect to the hall call based upon the predicted arrival time, for evaluating a waiting time by employing a first evaluation function while the waiting time is employed as an evaluation index, and for evaluating a travel distance by employing a second evaluation function employing the estimated travel distance as an evaluation index; and calculates an integral evaluation function containing at least the waiting time evaluation and travel distance evaluation for each car, and assigns a car whose integral evaluation function value is minimum with respect to the hall call.
