Bringing Real-Time Train Monitoring to Legacy Rolling Stock with IoT LTE
GNS Engineering Team 1 min read
Digital transformation in railway operations often starts with one practical challenge: how do you capture real-time data from legacy trains that were never designed for wireless connectivity?
GNS addressed this challenge by designing and deploying dedicated IoT LTE hardware that connects with onboard SACEM systems — the traditional train operation control system — and enables secure real-time train-log transmission to a central platform.
What we delivered
- Custom IoT LTE hardware — self-developed industrial IoT devices installed on onboard systems, bringing previously offline trains into a connected LTE data environment.
- SACEM data collection — real-time collection and interpretation of train logs from SACEM systems through onboard loggers.
- Secure data transmission — encrypted, real-time upload of critical operational data to central backend platforms.
- AI event and alarm classification — automatic classification of train events and alarm severity levels.
- Instant fault alerts — millisecond-level notifications for critical faults and operational anomalies, enabling preventive maintenance.
The impact
The project converted disconnected operational data into actionable, real-time insights — supporting faster fault detection, proactive maintenance and higher reliability in railway operations.
At GNS, we bring software, hardware and field engineering together to solve operational problems that cannot be addressed by software alone.
Need to connect legacy assets to a modern monitoring platform? Contact GNS to discuss custom IoT hardware and IT integration.