Traditional inspection marks a defect, but finding it later is slow and imprecise. VigiTab fuses a rotary and linear encoder to compute a live roll radius and creates a digital twin indexed by radius—not just length. Every event is tagged to a precise layer. During unwind, VigiTab drives the machine to that exact radius and stops within tolerance, so operators repair in minutes, not hours. You get faster changeovers, less waste, and traceable quality data for every roll—edge-first, cloud-optional, and simple to deploy.

High-value use cases:

• • • • • • • • Defect localization & repair during unwind

              • Automated splice positioning to exact layer

              • Traceable roll genealogy for customers & auditors

              • Faster claim resolution (supplier/customer disputes)

              • Waste reduction during rework & QA

Why are we Unique?

• • • • • • • • Radius-indexed digital twin (not just length/time).

              • Closed-loop unwind control to a target radius with predictive decel.

              • Edge-first architecture: runs on industrial PCs/PLCs; cloud optional.

              • Drop-in hardware: absolute rotary + linear encoder; vendor-agnostic.

              • Low Cost - Low Risk: pay per day/roll/tag; enterprise options available.

Core Product Highlights

• • • • • • • • Dual-encoder fusion computes instantaneous radius & thickness

              • Tag anything (defects, alarms, QC metrics) to a radius coordinate

              • Auto-seek & stop at target radius for repair/splice (configurable tolerance)

              • Operator UI with one-click “Go to tag”

              • Roll history & shareable roll ID (secure access control)

              • Works offline; optional cloud sync to Roll-Data.io

              • APIs/OPC-UA/MQTT for MES/SCADA & vision integration