Omron V-TS Teaching Manual.pdf.pdf - 第181页

Chapter 2 Insp ection Progr amming 2- 154 Judgment Type: S hape ( B rightne ss) Editing Tools PCB Test Result/Ma ss Production I m age, Model Mask Model Mask Model Im age (Image including com ponent and electrode). (1) M…

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2.15 Modifying an Inspection Program
2-153
Target Model set 1 Model set 2
At registration of Item No.
Wrong font Wrong layout
Color of letter
dimmed
(Wrong binary
threshold)
At registration of Item No.
Wrong font Wrong layout
Color of letter
dimmed
(Wrong binary
threshold)
Set masking so that the mask area is independent for each character by "inspection by character" ON
Perform measurement by character, and regard the worst value in the model as a representative of the model
90 50 20 70 85 55 30 70
Regard the best value in the model set as the representative of the model set
90 85
Regard the worst value as the representative of inspection between the model sets, and perform go/no-go judgment compared to the test specification.
1 313
13B 13 13 1 3 13 B B
B
B
13B
13 13 B B
B
B
1 313
13B
13 13 B B
B
B
95 90 60 50 20 90 75 70 85 55 30 70
Chapter 2 Inspection Programming
2-154
Judgment Type: Shape (Brightness)
Editing Tools PCB Test Result/Mass Production Image, Model Mask Model
Mask Model Image (Image including component and electrode).
(1) Mask Area
Specify the area to mask in the model image.
1.
Click (Create Window) button in the Image Operation tool bar.
Drag and drop the cursor to form a rectangle in the model image.
2.
Click either of the buttons below to specify the area to mask in the
model image.
Automatically set the mask per
character and mark.
Mask the area inside the drawn
rectangle.
Enables the area inside the drawn
rectangle.
Mask the area outside the drawn
rectangle.
3.
Repeat the above procedure to specify multiple areas to mask.
To clear the masked areas, click .
(2) Extraction Area Ratio
Specify the ratio (%) of the pixels to binarize (for extraction) to the entire unmasked area
(100%). The pixels of the color specified in (3) are extracted starting from those with the
lower brightness or saturation, until the specified extraction ratio is reached.
The ratio can be specified in the range of 1 to 99.
Operation
(1)
(4)
(2)
(3)
(7)
(6)
(5)
2.15 Modifying an Inspection Program
2-155
(3) Binarization Color
Select the color used for binarization from the options: Red / Green / Blue / Saturation.
(4) Reverse Color
If this checkbox is selected, the pixels of the color specified in (3) are extracted starting from
those with the higher brightness and saturation until the ratio specified in (2) is reached.
(5) Add Model Button
Clicking the button creates a mask model based on the image.
(6) Component Difference/Polarity Difference Inspection Switch
Setting the toggle button ON/OFF specifies the mask model to use for which inspection.
Button Status
Component
Difference
Inspection
Polarity
Difference
Inspection
Not to be used
Not to be used
Not to be used
To be used
To be used
Not to be used
To be used
To be used
(7) Model Set Selection Combo box
Select a model set to belong from the combo box. Specify non-defective items with the same
character/mark for one model set. The measured value closest to the non-defective item in
the set is used for non-defective/fault judgment. If more than one model set is being
specified, the value closest to the fault item between the sets is used for non-defective/fault
judgment.
Shown below is an example. Non-defective/fault item images shown below are
assumed.
Non-Defective
Image
Fault Image
A
B
A
B
1
B
Judgment results upon fault component image inspection when a good component
image is registered as a mask model.
Model Set 1
Model Set 2
Mask Model
A
A
B
B
Judgment result for
each model
NG
NG
OK
NG
Judgment result for
each set
NG
OK
Component Judgment
Result
NG