Most terminals in the field are still dark. This paper charts the upgrade path from disconnected to observable, and the milestones that make it pay.
Step one is simply knowing fill level and fault state remotely. Even basic GPRS telemetry pays for itself by cutting wasted restock trips. Visibility before intelligence.
Once visible, move to scheduled pre-fault service using fault-code trends. This is where uptime climbs past 95% and repeat purchase stabilizes.
Layer demand sensing to drive the menu and restock timing. This is the margin-expanding step, not the connectivity step.
The final step shares learnings across the fleet so a fix on one site prevents the fault on a thousand. This is where scale compounds.
Upgrade in order: see, then reliably serve, then sense demand, then learn across the fleet. Skipping to 'AI' before visibility is how most IoT pilots die.