Reading and Verifying Character Strings
100
FQ2-S4 User’s Manual
Step 3 Setting the Judgement Parameters
Settings are made to check whether the characters that were read from the workpiece were recognized
correctly. Differences between the references that were taught for character recognition and the actual result of
reading the characters are detected and conditions are set to determine how accurately characters are read.
[Inspect] − [Inspection] − [OCR] − [Settings] Tab Page
3 Press [OK] to enter the values.
You can use on the right of the display to access the following menu commands to change the following settings
[Format] : You can change the setting of the character format.
[Camera setup] : You can adjust the Camera focus, brightness, and other factors to input a better image.
Inputting Better Images: p. 60
[Meas. Parameter] : You can change the type of code to read, the read settings, etc..
Detailed Parameters: p. 103
[Continuous test] : You can start test measurements of displayed images for the settings that were taught.
Test Measurements: p. 214
1 Press [Judgement].
2 Press each parameter and set the range that is to be
judged as OK.
Set the range for each of the following parameters. Con-
tinuous measurements will be performed for the images
that are displayed.
• You can change measurement values that appear on the display on the Display Settings Display.
Press − [Display setting] on the right of the display to switch to the Display Settings Display.
• You can automatically adjust the judgement conditions by using OK and NG workpieces.
Test Measurements: p. 219
Press − [Auto adjustment] on the right of the display to switch to the Auto adjustment Display.
Item Parameter Setting Description
Judgement Similarity 0 to 100
Defaults
Upper limit: 100
Lower limit: 60
Sets the similarity of the read characters that is to be judged as OK. If any of the
characters in the read character string has a similarity that is lower than the set
value, the judgement will be NG. To judge incomplete or worn characters as
NG, set a high upper limit for the similarity.
Stability 0 to 100
Defaults
Upper limit: 100
Lower limit: 10
Sets the stability of the read characters that is to be judged as OK. If there is
more than one candidate for the same character, the difference between the
first and second candidates is numerically expressed by the stability. (For exam-
ple, if the similarity of the first candidate is 90 and the similarity of the second
candidate is 25, then the stability is 80 − 25 = 55.) To prevent misreading similar
characters, set a high value for the stability.
Note
Note
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