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Code reading systems

Optical character recognition (OCR)

Text Genius for MV440

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Siemens ID 10 · 2014

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Overview

With the "Text-Genius" and "Text-Genius Plus" licenses, SIMATIC

MV440 can be used for text recognition (in addition to reading

1D bar codes and 2D matrix codes). Text recognition is also re-

ferred to as OCR (Optical Character Recognition). Simultaneous

reading and comparing of plain text and reading of machine-

readable codes in the same image field is thus possible.

"Text-Genius" allows text recognition without training for a num-

ber of character sets by using generic algorithms, and thus

reading without a preparatory phase.

Text-Genius Plus

The "Text-Genius Plus" license comprises all functions of the

"Text-Genius" license and additionally enables training of further

fonts and characters, including special characters and graphic

symbols.

Licenses

The licenses are supplied as a "Single License" on a USB flash

drive and can be copied to the device with the SIMATIC Automa-

tion License Manager (ALM) using a plug-in. The "Text-Genius"

license is executable on a SIMATIC MV440 with firmware version

3.0 and higher, the "Text-Genius Plus" license with Firmware ver-

sion 5.0 and higher.

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Benefits

Highlights of Text-Genius and Text-Genius Plus at a glance

• Fast and reliable reading of plain text (up to 1000 reads per

minute) for high-speed applications.

• Fast and reliable checking of the readability of plain text (up to

1000 reads per minute) for high-speed applications.

• Flexible reading and swapping between different fonts (e.g.

OCR A, OCR B) without complex learning using Polyfont char-

acter set.

• High reading rate and reliability through saving of fonts on the

camera.

• Reading and comparison of plain text and machine-readable

code in the same image field.

• Automatic position tracking of the reading range with the re-

sources of "Pat-Genius".

• Automatic text localization without the use of predefined areas

means that text can be read even when its position varies.

• Automatic line detection for max. 12 freely definable image

regions with max. 15 lines.

• Automatic character height recognition between 15 and

220 pixels.

• Individual parameterization per image region.

• Reading of mirrored, 90° rotated, and inverted text.

• Numerous filter and comparison functions.

• Comparison of text recognition result with an individually

specified text per read operation.

• Flexible retrofitting of the text recognition function via the

SIMATIC Automation License Manager.

• Simple integration in the automation environment, e.g. via

function block of the SIMATIC MV440 devices.

Additional highlights of Text-Genius Plus:

• Simple training of additional characters and fonts (user fonts).

• Adaptation of text recognition by user fonts to the specific

requirements of the application to enable:

- Expansion of defined fonts by missing characters, e.g. spe-

cial characters.

- Optimization of recognition for specific printing procedures

(e.g. laser, ink, scribed, needled).

- Optimization of recognition by using different versions of in-

dividual characters, e.g. to compensate distortions.

• Up to five user fonts can be used in the reader.

• Very high read reliability can be achieved with a very good

print quality (> 99.5%).

ID10_2014_EN_NEW.book Seite 45 Mittwoch, 11. Dezember 2013 11:05 11