YSI_Prog_E - 第191页

4-31 4 Inspection status 1.11 Code Recognition T his inspection status is used to read QR Codes and so on affixed to boards to identify boards IDs. T he board ID is the file name used when outputting SPC data, and w hen …

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Inspection status
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Perform a "step" test.
1. Press the [Step] button at the "Tuning" tab to perform a test for the created step.
Test results and detection data are displayed when testing is complete. When doing so, there is no
problem if the test result is "NG".
Screen after a step test is finished
Test resultDisplays detected data.
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Detection data
Threshold No .: This is the threshold No. applied to inspection.
dX=, dY= : This the amount of displacement between the step frame and center of the
detection area.
Aspect Ratio= : This is a ratio based on the inspection shape.
2. Take a note of and check the detection data, and then press the [End] button.
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Set the "Min Match Ratio" and "Max Match Ratio" in the "Judge" parameters.
Min Match Ratio (%)
Enter a value approximately 80% of the inspection data Aspect Ratio.
Max Match Ratio (%)
Enter a value approximately 120% of the inspection data Aspect Ratio.
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Set the Min Detect Size X, Y (mm) for the detection conditions parameters.
1. Press the [Detail] button to display the "Test Results" screen.
2. Take a note of the test results maximum X width and maximum Y width values, and then press the
[Close] button to close the screen.
3. Set a value approximately 70% of the maximum X width for "Min Detect Size X (mm)" in the detection
conditions parameters, and set a value approximately 70% of the maximum Y width for "Min Detect
Size Y (mm)".
TIP
The inspection object is the largest shape within the step frame. The [Auto Calculation] button is disabled.
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Perform a step test again.
1. Press the [Step] button at the "Tuning" tab again to perform a step test.
2. Take a note of and check the detection data, and then press the [End] button.
3. If the test result is not judged correctly, review all parameters while referring to the detection data.
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Inspection status
1.11 Code Recognition
This inspection status is used to read QR Codes and so on affixed to boards to identify boards IDs. The board
ID is the file name used when outputting SPC data, and when outputting results to the Repair Station (option).
n
NOTE
If using this inspection status for a newly created inspection program, set at the [Data Edit] - "CodeScan" tab.
1
Create a "step" for code recognition.
Create the first step in the inspection program for code recognition.
1. Create a step frame.
2. Open the "Basic" tab, and set the "Status" in the basic parameters to "Code Recognition".
Status (inspection mode)
Code Recognition
Set to "Code Recognition".
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Set the "LIGHT" parameters.
1. Open the "LIGHT" tab and select "Luminance" at "Light Sampling Type".
2. Press the button to the right of the sampling light value field to open the sampling light list, select
"Mb+Lb" from the list, and then press the [OK] button.
3
Set the "Judge" parameters.
Open the "Judge" tab and set the following parameters.
"Judge" parameters
Status: Code Recognition
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Inspection status
Algorithm Type
Select the object to be inspected from the following three types.
QRcode : Select to recognize QRcode.
D-matrix : Select to recognize Data matrix.
Barcode : Select to recognize barcodes.
Start Data Column
Enter the start row for acquiring the recognized codes as data.
End Data Column
Enter the end row for acquiring the recognized codes as data.
Cell Number
Select the code size if "QRcode" or "D-matriX" is selected for the algorithm type.
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Perform a step test.
1. Press the [Step] button to perform a test for the created step. Test results and detection data are
displayed when testing is complete.
Screen after a step test is finished
Test resultDisplays detected data.
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Detection data
Code : This is the recognized code characters.
2. Take a note of and check the detection data, and then press the [End] button.
3. If the test result is not judged correctly, review all parameters while referring to the detection data.