Cold chain failures rarely happen because a single device broke. They happen because small signals went unheard across multiple systems for several hours.
The Timeline
- Hour 0: shipment loaded, temperature in spec.
- Hour 3: door opens at a transfer hub; temperature drifts up but stays within tolerance.
- Hour 5: vehicle idles in the sun for 40 minutes; temperature climbs to threshold.
- Hour 7: excursion confirmed. Notification sent. By then, the product window has closed.
Where the Signals Were Missed
- Door event lived in the BLE platform; temperature in the cold chain platform; location in the GPS platform. Nobody saw all three together.
- Alerts were thresholded — they only fired after the limit was crossed, not on the trajectory toward it.
What Would Have Changed the Outcome
- A unified view correlating door events, temperature trajectory and location in real time.
- An AI assistant flagging "this shipment is on track to breach in ~70 minutes" before the limit was hit.
- A single notification with full context, not three disconnected pings.
Excursions are stories told by data from multiple devices. You can only act on them if the platform tells the whole story in time.