How to Track Work in Progress with RFID
A practical framework for tracking materials and production items as they move through manufacturing stages.
The operational problem
Work-in-progress becomes difficult to locate when status depends on paperwork, memory or scans that operators can miss.
What a reliable solution requires
RFID can associate tagged items or carriers with controlled transition points, creating timely production events without requiring line of sight.
- Define the unit that will carry identity.
- Test tags on the actual material and carrier.
- Engineer read zones at meaningful production transitions.
- Connect reads to valid routing and status rules.
Questions to answer before implementation
A useful discovery process starts with the workflow and the required business outcome. Ask:
- Can items move backward or skip a stage?
- How should rework and scrap be represented?
- What read accuracy is required before an automatic status change is allowed?
Where integration fits
Middleware must distinguish a passing read from a valid process transition and reconcile the event with the production order or routing record.
A practical next step
Pilot the stage with the largest visibility gap and include normal flow, rework and exception scenarios.
