Title:
ELEVATOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/005658
Kind Code:
A1
Abstract:
Provided is an elevator control system that suppresses a decrease in the detection accuracy of a basket position due to a transmission delay of a signal indicating whether or not a basket is in a reference position. A state acquisition node (20) of a control system (5) transmits a communication packet including information on a state acquired from a position detection unit and indicating whether or not a basket (9) is in a reference position and information on a time when the information is acquired. A control node (21) of the control system (5) synchronizes the information on time between the control node (21) and a state acquisition node (20). The control node (21) acquires, from a rotation amount detection unit, information on the rotation amount of a sheave of an elevator. The control node (21) acquires, on the basis of history data in which information on a rotation amount and information on a time when the information is acquired are associated with each other, the rotation amount at a time when a state acquired when receiving the communication packet from the state acquisition node (20) is switched. The control node (21) calculates the position of the basket (9) on the basis of the reference position and a change in the rotation amount from the time.
Inventors:
TORITANI AKIYUKI (JP)
Application Number:
PCT/JP2019/026864
Publication Date:
January 14, 2021
Filing Date:
July 05, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B3/02; B66B3/00
Domestic Patent References:
| WO2012124068A1 | 2012-09-20 |
Foreign References:
| JP2003201073A | 2003-07-15 | |||
| JPS527572B2 | 1977-03-03 | |||
| JP2003335473A | 2003-11-25 | |||
| JP6269378B2 | 2018-01-31 | |||
| JPH0631135B2 | 1994-04-27 | |||
| JPH07157210A | 1995-06-20 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
Download PDF:
Previous Patent: AIR-CONDITIONING APPARATUS
Next Patent: INFORMATION PROCESSING SYSTEM, SENSOR SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM
Next Patent: INFORMATION PROCESSING SYSTEM, SENSOR SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM