Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/142236
Kind Code:
A1
Abstract:
The objective of the invention is to provide a feature that can predict the time period when maintenance will be required for optical communication in an electronic component mounting device which performs optical communication. For time period prediction processing, a controller reads an electric signal voltage value from a memory unit, calculates the slope of the read voltage value against time, and based on the decrease of the voltage value output from an AD converter over time, calculates the time period at which the voltage value will reach a threshold value or lower. Then, the controller estimates the time period at which the output value of an optical signal output from a mounting head will reach a threshold value or lower.
Inventors:
HASHIMOTO MITSUHIRO (JP)
Application Number:
PCT/JP2018/001001
Publication Date:
July 25, 2019
Filing Date:
January 16, 2018
Export Citation:
Assignee:
FUJI CORP (JP)
International Classes:
H05K13/04; H04B10/079
Foreign References:
| JP2016152483A | 2016-08-22 | |||
| JPH11225115A | 1999-08-17 | |||
| JP2003008136A | 2003-01-10 | |||
| JPH09116231A | 1997-05-02 | |||
| JP2001051168A | 2001-02-23 | |||
| JP2001108860A | 2001-04-20 | |||
| JP2002072007A | 2002-03-12 | |||
| JP2017213629A | 2017-12-07 | |||
| JP2017183587A | 2017-10-05 | |||
| JP2015015368A | 2015-01-22 | |||
| JP2016031975A | 2016-03-07 |
Other References:
See also references of EP 3742879A4
Attorney, Agent or Firm:
NEXT INTERNATIONAL et al. (JP)
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