Mitsubishi Denki Kabushiki Kaisha

Minoru Nakata

Shintaro Tsuji

Yasukazu Umeda

Kazutoshi Ohta

Hidenobu Nakashima

Koji Takeshima

A group control method apparatus for elevators including a plurality of cars for serving floors divided into a plurality of sectors. The apparatus has a determination coincidental ride prevention section for assigning a hall call to one of the plurality of cars in such a manner that passengers from different ones of the sectors will not ride on the same car.

Group control method and apparatus for elevators for assignment of

A period of time required since the output signal of an acceleration detector for detecting an earthquake exceeds a first set level, until it reaches a second set level greater in value than the first set level, is measured, and a calculation is executed on the basis of the measured value thereby to predict the scale of the earthquake, and a resetting period of time since an elevator is brought to a stoppage operation due to the earthquake, until the stoppage operation is released, is calculated on the basis of the predicted scale of the earthquake. Thus, the period of time till the reset is automatically set is variable according to the scale of the earthquake.

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Inazawa, Japan

Minoru Nakata