Elevator system

  • US 8,196,711 B2
  • Filed: 07/12/2007
  • Issued: 06/12/2012
  • Est. Priority Date: 07/12/2007
  • Status: Active Grant
First Claim
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1. An elevator system which includes a group management control device for a plurality of elevator cars, and in which a maximum speed or an acceleration of each of said plurality of elevator cars is changed according to a car load or a moving distance of each of said plurality of elevator cars, said elevator system characterized by comprising:

  • a destination floor registration unit that registers a destination floor according to a call into a call registration device at the time of call registration; and

    an assignment control unit that assigns a suitable elevator car among said plurality of elevator cars to a destination call registration request from said call registration device;

    wherein said assignment control unit includes a prediction time calculation unit, andsaid prediction time calculation unit calculates a change of the moving distance of each elevator car after the call assignment based on said destination floor, and at the same time calculates each floor arrival prediction time of said each elevator car using a speed or an acceleration thereof according to a calculated value of said change of the moving distance.

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