YSD_Users_E.pdf - 第255页
5-66 5 Creating the board data w Perform the vision test. Press the [T est] button and check to see if the pattern is correctly recognized. Repeat this test several times. When no error occurs, the pattern data is approp…
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Creating the board data
8
Decide on the pattern size.
By using the cursor selection buttons and arrow buttons, adjust the window size and position to enclose
the entire pattern. The function of each button is as follows.
[Start] button
The window can be enlarged or reduced with the arrow keys, using the lower right corner of the
window as a start point.
[End] button
The window can be enlarged or reduced with the arrow keys, using the upper left corner of the
window as a start point.
[Move] button
The entire window moves with the arrow keys.
[Center Offset] button
Press this button when you want to shift the reference position from the center of the window. (The
reference position is displayed as a pink cross cursor.)
[1 Pixel / 10 Pixel] buttons
Press these buttons to change the distance that the window moves each time you press an arrow
button.
Window movement and adjustment
[End] button[Start] button [Move] button
Stationary
point
Entire window moves.
Pattern
Enclose the pattern.
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Register the pattern.
Make sure that the pattern is centered in the window, and then press the [Save Pattern] button.
0
Check the pattern image.
Pressing the [Draw Pattern] button displays the pattern image that has been obtained, so check the
shape.
q
Return to the Mark Adjust window.
Press the [Close] button to return to the Mark Adjust window.
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w
Perform the vision test.
Press the [Test] button and check to see if the pattern is correctly recognized. Repeat this test several
times. When no error occurs, the pattern data is appropriate.
If an error occurs, check whether "Search Area" of the Vision parameters is appropriate. If the search
area is too large so that other marks are located within the search area, then reduce the search area.
Conversely, if the search area is too small, then enlarge the search area.
Search area adjustment
Search area
Search area is too large, so
other marks are recognized.
Reduce the search area
Search area is too small,
so the target pattern is not
inside the search area.
Enlarge the search area.
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Close the Mark Adjust window.
Press the [OK] button to close the Mark Adjust window.
r
Save the data.
Press the [Save] button in the main menu button area and save the data.
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6.6.2 Using the data for pattern matching
Pattern matching can be used in the same way as the fiducial marks. In this case, enter the mark No. registered
as the pattern in the Mark 1 and Mark 2 columns on the [Board] - [Fiducial] tab screen. (The figure below
shows an example when using pattern matching as board fiducial marks.)
Example of using pattern matching
Set mark No. registered as pattern in
"Mark 1" and Mark 2" columns.
Set to "Execute".
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