Elevator system

Patent metadata

Field	Value
Publication number	US-10696520-B2
Application number	US-201615570931-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	Jun 25, 2015
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

An elevator system includes a first car, a diagnosis operation control unit ( 12 ), a learning operation control unit ( 13 ), a setting unit ( 14 ), a second car, and an operation control unit ( 10 ). The diagnosis operation control unit ( 12 ) moves, after an occurrence of an earthquake, the first car to perform a diagnosis operation. The learning operation control unit ( 13 ) moves the first car to perform a learning operation. The setting unit ( 14 ) sets a reference range for detecting an abnormality in the diagnosis operation on the basis of learning data acquired in the learning operation. The operation control unit ( 10 ) controls a position of the second car so as not to be positioned at the same height as the first car when the learning operation is performed by the learning operation control unit ( 13 ).

First claim

The invention claimed is:

1. An elevator system comprising:
a first car that moves vertically;
a second car that moves vertically and is allowed to be positioned so as to be adjacent to the first car at the same height as the first car; and
circuitry
to move, after an occurrence of an earthquake, the first car to perform a diagnosis operation;
to move the first car to perform a learning operation;
to set a reference range for detecting an abnormality in the diagnosis operation on the basis of teaming data acquired in the learning operation;
to control a position of the second car so as not to be positioned at the same height as the first car during the learning operation.

2. An elevator system comprising:
a first car that moves vertically;
a second car that moves vertically and is allowed to be positioned so as to be adjacent to the first car at the same height as the first car; and
circuitry
to move, after an occurrence of an earthquake, the first car to perform a diagnosis operation;
to move the first car to perform a learning operation;
to set a reference range for detecting an abnormality in the diagnosis operation on the basis of learning data acquired in the learning operation;
to cause the second car to stop when the second car is positioned at the same height as the first car during the learning operation.

3. The elevator system according to claim 2 , wherein the circuitry is configured to cause, during the learning operation, the second car to be positioned at the same height as the first car only when the learning operation is started.

4. The elevator system according to claim 2 , wherein the circuitry is configured to cause, during the learning operation, the second car to be positioned at the same height as the first car only when the learning operation is ended.

5. The elevator system according to claim 2 , wherein the circuitry is configured to cause, during the learning operation, the second car to be positioned at the same height as first car only when the learning operation is started and ended.

6. An elevator system comprising:
a first car that moves vertically;
a second car that move vertically and is allowed to be positioned so as to be adjacent to the first car at the same height as the first car; and
circuitry
to move, after an occurrence of an earthquake, the first car to perform a diagnosis operation;
to set a reference range for detecting an abnormality in the diagnosis operation on the basis of learning data acquired in the learning operation;
to move the second car at a first speed to perform a normal operation and;
to cause, during the learning operation, the second car to be moved at a second speed when the second car being moved is positioned at the same height as the first car, the second speed being lower than the first speed.

7. An elevator system comprising:
a first car that moves vertically;
a second car that moves vertically and is allowed to be positioned so as to be adjacent to the first car at the same height as the first car; and
circuitry
to move, after an occurrence of an earthquake, the first car to perform a diagnosis operation;
to move the first car to perform a learning operation;
to set a reference range for detecting an abnormality in the diagnosis operation on the basis of learning data acquired in the learning operation; and
to stop the learning operation when the second car is positioned at the same height as the first car during the learning operation.

8. The elevator system according to claim 7 ,
wherein the circuitry is configured to stop the learning operation when the second car being moved is positioned at the same height as the first car during the learning operation.

9. An elevator system comprising:
a first car that moves vertically;
a second car that moves vertically and is allowed to be positioned so as to be adjacent to the first car at the same height as the first car; and
circuitry
to move, after an occurrence of an earthquake, the first car to perform a diagnosis operation;
to move the first car to perform a learning operation;
to set a reference range for detecting an abnormality in the diagnosis operation on the basis of learning data acquired in the learning operation; and
to set the reference range without using learning data acquired when the second car is positioned at the same height as the first car among the learning data acquired in the learning operation.

10. The elevator system according to claim 9 ,
wherein the circuitry is configured to set the reference range without using learning data acquired when the second car being moved is positioned at the same height as the first car among the learning data acquired in the learning operation.

Assignees

• Mitsubishi Electric Corp

Inventors

• Aiba Junichi

Classifications

• B66B5/0087

  Devices facilitating maintenance, repair or inspection tasks (devices incorporated in the buffer B66B5/288; railings on top of the car B66B11/0226) · CPC title

• B66B5/022 Primary

  where the abnormal operating condition is caused by a natural event, e.g. earthquake · CPC title

• B66B1/28

  electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}) · CPC title

• B66B2201/402

  by historical, statistical or predicted traffic data, e.g. by learning · CPC title