Mitsubishi Electric Corporation

Masaharu Eto

Shiro Hikita

Naohiko Suzuki

A group supervisory control device for an elevator includes a hall call assignment portion assigning a specific car to a hall call registered; an operation prediction portion predicting which is the operation to the next hall registered, regenerative operation or power running operation, and the time for which the regenerating operation or the power running operation is performed when the specific car has stopped at a responding hall; and a door open time control portion comparing the time for which the regenerative operation or the power running operation of the specific car is performed with the remaining running time of any other car performing the power running operation or the regenerative operation already predicted, calculating overlap time for the operations simultaneously, and making door open time set for the specific car changed to determine the door open time that can obtain longer overlap time, whereby a door is closed.

Group supervisory control device for elevator

Provided is a group management control device for elevator in which the occurrence of useless waiting time and lateness for boarding is reduced even when there is a difference in the distance from a hall call registration device to each car. For this purpose, the group management control device for elevator which manages a plurality of elevators as a bank includes a hall call registration device, a walking time prediction section which predicts the walking time of a user on the basis of the distance from the hall call registration device to each of the elevators, and a hall call assignment section which decides an elevator to be assigned to a hall call on the basis of an evaluation value calculated by using the predicted walking time. The plurality of elevators which are managed as a bank are divided into a plurality of groups according to the distance from the hall call registration device. The walking time prediction section predicts the walking time for each group by using the same value preset as the distance for the elevators belonging to the same group.

Group management control device for elevator

In an elevator system floors each include: a hall registration device that places a plurality of car calls for moving a car to destination floors different from one another; and a display device that displays the car that has been assigned the plurality of car calls. A limit value setting mechanism sets, for each of the plurality of floors separately, a limit value for limiting a count of the plurality of car calls that can be assigned to the same car. A count-up mechanism obtains, when a new car call is made, a call count of each car by a given method, based on information about the plurality of car calls that have been assigned to the car. A candidate car selector compares the limit value set to a floor where the new car call is made and the call count of the each car, to thereby select, as a candidate car, the car to which the new car call can be assigned from among the cars.

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Tokyo, Japan

Masaharu Eto