Print inspection from scanware
Print inspection of plain text (OCV/OCR)SIGNUM HR is a highly efficient greyscale vision system and the complete solution for 100% optical inspection of print including characters (OCR/OCV) on packaging materials during the packaging process. It offers recognition capacity, operating features and operator comfort that so far have been known only from most up-to-date vision systems. The high reading speed, integrated illumination and outstanding software make the system the best of its kind.
The OCV/OCR camera system is fully format-independent. scanware has chosen a feature-based recognition process. The object to be inspected is analysed based on features such as size and centre of gravity.
However, not each individual previous reading is taken as a reference value since this is an approach that is either time-consuming or lacks precision. Rather, SIGNUM HR creates a virtual character from all readings that were marked correct. Thus, the virtual character depicts the average value of all previous readings. Ultimately, for each sign, only a single evaluation occurs to establish correctness and readability.
This library of virtual signs is taught at installation by scanware. Subsequent changes can be made by the user. During the self-teaching mode, the characters to be inspected are detected automatically. In production, an automated tracking feature ensures that the format mask is in the correct reading position at all times. Up to three cameras ensure 100 % inspection of the relevant area. That capacity can be further increased in the future.
The vision system’s high computing power allows the verification of up to 5'000 characters. The individual areas may have different orientations.
Area of Application
Inspection of presence, completeness, readability and quality of prints such as:
- Company information
- Product data
- Logos, pictograms or symbols
- Barcodes and 2D-Codes, i. e. DataMatrix
Technical specifications
| Camera resolution | 1'296 x 966 to 4'872 x 3'248 pixels |
| Number of cameras | 1-6, depending on application |
| Reading speed | 600 readings/minute for 224 characters |
| Inspection areas for: | |
| Codes | max. 10 |
| Text lines | max. 10 |
| Logos and graphics | max. 100 |
| Characters | up to 5'000 |
Downloads (PDF)
External links
