Group supervisory control device for elevator

摘要

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.

主权项

1. A group supervisory control device for an elevator, by which elevator control devices for controlling a plurality of cars are controlled as one group, comprising:
a hall call assignment portion by which a specific car is assigned to a hall call registered by hall call registration portion for registering a hall call at each floor; an operation prediction portion by which, when the specific car has stopped at a responding hall, it is predicted which is the operation to the next hall registered by the hall call registration portion according to the car traveling direction and the car load, regenerative operation which regenerates power or power running operation which consumes power, and the time for which the regenerating operation or the power running operation is performed is predicted; and a door open time control portion by which the time for which the regenerative operation or the power running operation of the specific car is performed, which is predicted by the operation prediction portion, is compared with the remaining running time of any other car performing the power running operation or the regenerative operation already predicted by the operation prediction portion, overlap time for which the specific car and the any other car perform the regenerative operation and the power running operation simultaneously is calculated, and door open time set for the specific car, which is used for the calculation, is changed and the overlap time is calculated to determine the door open time which can obtain longer overlap time, whereby a door is closed.