Cold Chain Temperature Logging System

Temperature monitoring for cold chain logistics: real-time in-truck collection, over-temperature alarms, and a full-journey temperature archive.

Background

A cold chain carrier serving fresh food and pharmaceutical clients was required to provide full-journey temperature records. Drivers previously copied readings by hand — low credibility, and no evidence when disputes arose.

Solution

In-truck probe data flows into the system through an IoT gateway. Shipments bind automatically to temperature curves, threshold breaches trigger instant SMS alarms, and a one-click PDF temperature archive is generated on delivery.

Key Features

  • Real-time temperature data collection
  • Shipments bound to temperature curves
  • Over-temperature SMS/phone alarms
  • Full-journey PDF temperature archive
  • Vehicle and probe device management
  • Local probe storage with deferred upload after outages
  • Zone monitoring for multi-temperature trucks
  • Exception event timeline per shipment
  • Shippers self-check archives by scanning a code
  • Probe calibration expiry reminders

Results

Temperature archives now ship with the goods, improving shipper trust and renewal rates. Temperature exceptions moved from "arguing afterwards" to "handling en route".

Project Info

Industry
Cold Chain Logistics
Project Type
Custom Development
Delivered
2025-08
Tech Stack
ThinkPHP IoT Integration Vue MySQL
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