Traceability of production material with RFID

As we progress toward a more automated factory, the need to more efficiently manage what happens prior to the production process has become apparent. Tracking of raw material and production components from the dock door to the warehouse is quickly evolving from a best guess estimate to real-time inventory levels driven by production. Essentially, we are moving from a practice of holding just-in-case inventory to Just-in-Time (JIT) inventory. The JIT concept helps to optimize the amount of in-house inventory based on production. In addition, the entire supply chain benefits because the levels of raw goods inventory upstream can be managed more efficiently and forecasted with more accuracy.

RFID and barcode technology have played a critical role in the actual production process for decades, but its benefits are currently being leveraged in other areas of the plant as well. Whether its tracking every item or every pallet that comes into the receiving dock, ID traceability provides visibility where it did not exist before.

Traceability of production material 

Upon receiving a pallet with raw material, the 2D matrix code on the shipping label is read by a barcode scanner. The relevant data needed for the further traceability process is transferred onto the stack of trays which contain UHF carriers. The number of carriers is saved together with the traceability data in a database. This process takes place at one single station and the data is updated immediately to represent the inventory level.

Transmission of incoming goods data on the transponder

Automated review of loaded pallets

Based on the material number, the system contains a standard load for the number of trays on the pallet. An automatic screening takes place to determine if all transponders on the pallet are registered. In case of a difference between the registered data and the expected data, an error message pops up to indicate the need for manual intervention. This process allows for proactive management of inventory to prevent false inventory levels or goods that cannot be accounted for.

Key Features of a traceability solution:

  • Corresponds to the global ISO standard
  • Suitable for attachment to major control systems via bus interfaces and higher level IT systems
  • Variety of accessories available for easy integration into different applications

To learn more about RFID technology, visit www.balluff.com.

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