Title:
POSITION DETECTION DEVICE FOR ELEVATOR AND ELEVATOR CONTROL SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/192209
Kind Code:
A1
Abstract:
The present invention pertains to a position detection device for an elevator. The present invention comprises: a belt-shaped cable with a curved portion formed at the lower end position when the cable is suspended in a U-shape with one end fixed to a hoistway and the other end fixed to a car; a sensor that is provided on at least the curved portion of a cable covering and that can measure changes in physical quantities due to bending deformation along the cable at the portion where the sensor is provided; and a car position calculation unit that calculates the position of the car at the present time, which is determined according to the position of the curved portion, after estimating the position of the curved portion in the cable on the basis of a database obtained from the measurement results of the sensors measured in advance in cases where the car is at a predetermined car position and the sensors are provided at a plurality of locations along the cable of the curved portion. This facilitates installation and adjustment work that should be performed appropriately according to the rated speed of the elevator, and also makes it possible to cope with the problem of loss of car position information due to a power supply interruption or power failure.
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Inventors:
MORI SHOTARO (JP)
Application Number:
PCT/JP2020/013943
Publication Date:
September 30, 2021
Filing Date:
March 27, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B7/06; B66B3/02
Foreign References:
| JPS5115277Y1 | 1976-04-22 | |||
| JPH05262467A | 1993-10-12 | |||
| JP2006036430A | 2006-02-09 | |||
| CN110054046A | 2019-07-26 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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