Marking products with unique IDs has become standard across industries. These identifiers unlock opportunities for traceability, analytics, and predictive maintenance, but choosing the right type of marking is crucial. While human-readable text has been traditional, 2D barcodes like QR or Data Matrix codes offer clear advantages, especially for automated inspection and long-term traceability.

Why Data Matrix Codes Excel

1. Error Correction and Robustness
   Products often pass through harsh environments where markings may be exposed to abrasion, chemicals, or other damage. Standard text is prone to misinterpretation if partially damaged. Data Matrix codes include built-in error correction, ensuring that information can still be read accurately even when the code is partially compromised.
   
2. Efficient Space Utilization
   Data Matrix codes include alignment patterns and error correction, allowing more data in less space compared to text. This is critical for small components or products where space is limited.
   
3. Faster Marking and Reading
   Whether using inkjet, laser, or engraved markings, Data Matrix codes reduce the number of marks needed. For example, marking the digits 0–9 requires 124 dots with a Dot Matrix font but only 86 for a Data Matrix code. Automated readers can scan codes faster than OCR or manual reading, improving throughput.
   
4. Compact Encoding
   Data Matrix allows encoded data storage, meaning more information can fit in fewer characters. For instance, encoding 20 years of production dates requires 6 characters in standard text, but only 4 characters in a Data Matrix code.
   

Business Benefits

• Reduced errors compared to manual reading,
  
• Faster inspection with machine vision or smart cameras,
  
• Better traceability for compliance, inventory, and predictive maintenance,
  
• Scalable automation, eliminating the bottleneck of manual entry.
  

Conclusion

While human-readable text may still be needed in some scenarios, adding a Data Matrix or QR code ensures higher reliability, speed, and efficiency. Automated scanning with smart cameras and machine vision always surpasses manual tracking or OCR methods, making 2D codes the superior choice for modern manufacturing and quality control.

Ready to implement QR or Data Matrix codes in your production line?
Contact us at info@subpixel.hr to learn how Subpixel’s machine vision solutions can streamline product identification and improve quality control.