Title:
MEASUREMENT SYSTEM AND MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/184575
Kind Code:
A1
Abstract:
A programmable controller executes steps of: inputting measurement results obtained by three displacement sensors at three Z-coordinates of a workpiece; inputting measurement results obtained by one or two image sensor(s) at two XY-coordinates of the workpiece; calculating, on the basis of the measurement results at the three Z-coordinates and the two XY-coordinates, displacement of the workpiece with respect to a reference plane, which defines a reference position and a reference attitude of the workpiece, with components of 6 degrees of freedom; and calculating, on the basis of the displacement of the workpiece with respect to the reference plane, displacement of three calibration points, which define a plane of which a relative positional relationship is predefined with respect to the reference plane when a position and an attitude of the reference plane are matched with a position and an attitude of the workpiece.
Inventors:
YOSHII TAKAAKI (JP)
FURUKAWA HARUKI (JP)
TSURUOKA KOHEI (JP)
FURUKAWA HARUKI (JP)
TSURUOKA KOHEI (JP)
Application Number:
PCT/JP2020/010360
Publication Date:
September 17, 2020
Filing Date:
March 10, 2020
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
G05B19/05; B25J13/08; G01B11/00; G01B11/245
Domestic Patent References:
| WO2016071996A1 | 2016-05-12 |
Foreign References:
| JP2015093356A | 2015-05-18 | |||
| JPH06143166A | 1994-05-24 | |||
| JPH1073422A | 1998-03-17 | |||
| JPH04104302U | 1992-09-08 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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