Edge Gateway for Process Data to IoT Platform

Overview

As part of the Industrial Internet of Things (IIoT) module in my Master’s program in Electrical Systems at HTWG Konstanz, I developed an edge gateway system to collect, process, and transmit process data from a production line in the university’s automation lab.
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The edge gateway gets PLC data via an OPC UA gateway, preprocesses it using Node-RED, and forwards it over MQTT to the ThingsBoard IoT platform. The system enables live visualization, monitoring, and analysis of production and system status data.

Features

• Data collection via MQTT in JSON format
• Edge processing using Node-RED and JavaScript mapping
• Live dashboards in ThingsBoard for process and system data
• Containerized architecture with Docker for modular deployment
• Monitoring of gateway health (CPU, RAM, temperature)

Tech Stack

• Base Stack: IOTstack (forked)
• Edge Tools: Node-RED, Mosquitto, Docker
• Cloud Tools: ThingsBoard, PostgreSQL
• Hardware: Linux-based Industrial Edge Gateway (FR201 OnLogic)