Title:
ABNORMALITY DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/019249
Kind Code:
A1
Abstract:
This abnormality detection device: causes a motor that drives a drive unit at a plurality of rotation speeds to run a detection operation on the basis of an instruction to diagnose the state of the drive unit; acquires, as information indicating the operating state of the drive unit, a control instruction for the motor driving the drive unit or a feedback signal from the motor driving the drive unit, during the detection operation; analyzes the control instruction for the motor driving the drive unit or the feedback signal from the motor; determines the state of the drive unit on the basis of the result of the analysis; and reports, on the basis of the determination result, that the state of the drive unit is different from that in normal time.
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Inventors:
HU LIANCHENG (JP)
SATOU KAZUHIRO (JP)
IIJIMA KAZUNORI (JP)
SATOU KAZUHIRO (JP)
IIJIMA KAZUNORI (JP)
Application Number:
PCT/JP2021/026911
Publication Date:
January 27, 2022
Filing Date:
July 19, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
G05B23/02; B23Q17/00
Foreign References:
| JP2018040456A | 2018-03-15 | |||
| JPH0985585A | 1997-03-31 | |||
| JP2020104257A | 2020-07-09 | |||
| JP2016040072A | 2016-03-24 |
Attorney, Agent or Firm:
AIWA INTERNATIONAL PATENT AGENCY (JP)
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