Title:
CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2018190079
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control device capable of more accurately detecting a power failure.SOLUTION: A control device 200 for causing an industry machine to execute retreat operation in detecting an occurrence of a power failure includes: a power supply voltage prediction part 206 for predicting a predicted voltage of a power source 201 on the basis of a power supply voltage prediction function having a parameter related at least to a time as a variable; a threshold voltage determination part 209 for determining a threshold voltage being determination reference of the occurrence of the power failure on the basis of a threshold voltage determination function having at least the predicted voltage, the parameter related to the time, a parameter showing power failure occurrence states of the previous time or earlier as variables; a power failure detection part 210 for determining that the power failure occurs in the case that an actual measurement voltage of the power source is less than the threshold voltage determined by the threshold voltage determination part; and a retreat operation command part 211 for instructing the industry machine to perform retreat operation in the case that the power failure detection part 210 determines that the power failure occurs.SELECTED DRAWING: Figure 1
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Inventors:
KATO KANTA
SHIBATA TOMOHIRO
SHIBATA TOMOHIRO
Application Number:
JP2017090360A
Publication Date:
November 29, 2018
Filing Date:
April 28, 2017
Export Citation:
Assignee:
OKUMA MACHINERY WORKS LTD
International Classes:
G05B19/18; G05B19/4155; H02P3/18
Domestic Patent References:
| JP2017034832A | 2017-02-09 | |||
| JP2011209936A | 2011-10-20 | |||
| JP2009075799A | 2009-04-09 | |||
| JP2017064830A | 2017-04-06 | |||
| JP2002233156A | 2002-08-16 |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office