IP Library Granted Patent US 8,196,711
Granted Patent B2
US 8,196,711 · App. 12/595,523 · Granted Jun 12, 2012

Elevator system

Assignee: Mitsubishi Electric Corporation
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Quick Facts
Patent No.
US 8,196,711
App. No.
12/595,523
Granted
Jun 12, 2012
Kind
B2
Abstract

An elevator system is obtained which is capable of assigning a suitable car by taking into consideration a change of a maximum speed or an acceleration according to the result of prediction of a change of a car load or a moving distance with respect to a hall call. In the elevator system having a group management control device ( 20 ), provision is made for a destination floor registration unit ( 11 ) that registers a destination floor according to a call into a call registration device ( 10 ) at the time of call registration, and an assignment control unit ( 21 ) that assigns a suitable car to a destination call registration request from the call registration device ( 10 ). The assignment control unit ( 21 ) includes a prediction time calculation unit ( 22 ), and calculates a change of the moving distance of each car after the call assignment based on the destination floor, and at the same time calculates each floor arrival prediction time of each car using a speed or an acceleration thereof according to a calculated value of the change of the moving distance.

Claims (16)

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, and

said 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.

2. 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 passenger counting unit that measures the number of passengers according to a call, and registers a measured value of said number of passengers 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 call registration request including said number of passengers from said call registration device;

wherein said assignment control unit includes a prediction time calculation unit, and

said prediction time calculation unit calculates a change of the car load of each elevator car after the call assignment based on said number of passengers, 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 car load.

3. 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;

a passenger counting unit that measures the number of passengers according to said call, and registers a measured value of said number of passengers into said call registration device at the time of said 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 including said number of passengers from said call registration device;

wherein said assignment control unit includes a prediction time calculation unit, and

said prediction time calculation unit calculates a change of a moving distance, and a change of a car load of each elevator car after call assignment based on said destination floor and said number of passengers, 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 each of said change of said moving distance and said change of said car load.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2020
From: MITSUBISHI ELECTRIC CORPORATION
To: MUROLET IP LLC
Reel/Frame 053343/0443 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2009
From: TOKURA, SAKURAKO
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 023356/0334 →
Continuity (1)
Related Publication 20110174580A1 · Jul 21, 2011