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When technology takes care of every journey

Have you ever travelled at 300 km/h in a TGV? Behind this comfortable experience, a state-of-the-art European rail safety system takes care of every journey.

At MASTERIS, we support our customers in mastering this critical technology, promoting the efficiency, reliability and interoperability of modern trains.

The Safety Equipment (EQS) of the ERTMS (European Rail Traffic Management System) system guarantees the safety of passengers and personnel, from emergency braking to the exact location by satellite.

The EVC: the digital brain of the train

The EVC (European Vehicle Computer) centralizes all information from train sensors: odometry, radar, inertial unit (IMU), DMI data and beacon information.

It analyzes the train situation in real time and triggers the necessary actions: braking, speed regulation or communication with the ground.

Thanks to the EVC, the train can anticipate risks and guarantee safety, even in the most complex situations.

DMI: the interface between the driver and the train

The DMI (Driver Machine Interface) is the main driver screen, displaying:

Speed and driving mode
Security alerts
Signal information and movement orders

It allows the driver to interact with the system intuitively, strengthening human-machine cooperation and overall train safety.

Euroantenne and Euro: the ground-to-board dialogue

The Euroantenna, placed under the train, receives information from Eurotags installed along the track.

These exchanges ensure that the train always knows its exact position and the authority of movement, regardless of the country crossed.

Odometry, radar and IMU: know exactly where the train is

To calculate the position of a high-speed train, three technologies are combined:

Odometry: calculates the distance traveled thanks to the rotations of the wheels
Doppler radar: measures the speed exactly and is not influenced by the sliding
IMU (Inertial Measurement Unit): detects accelerations and movements using inertial sensors

These systems ensure precise and reliable positioning, which is key to effective braking and train safety.

Emergency braking: a maneuver that's more engaging than it seems

In the event of a risky situation, the EVC automatically triggers emergency braking.

At 100 km/h, a TGV takes about 1 km to stop, and at 320km/h nearly 4 km.

Each braking is precisely calculated to ensure safety without compromising traffic flow.

Legal recorder: the train's “black box”

The legal recorder (JRU) stores all train data, allowing a complete analysis in the event of an incident.

Beyond regulatory compliance, it is a strategic tool for optimizing operations and continuously improving safety.

GSM-R and FRMCS: railway communication for rolling stock

The GSM-R, the current rail communication standard, is already being replaced by the FRMCS (Future Railway Mobile Communication System).

The FRMCS, based on 5G technology, will offer:

Faster and reliable data exchanges
Real-time supervision of rail traffic
Better interoperability at European level

📘Learn more about FRMCS — SNCF Réseau

How the GSM-R works

GNSS: the live geolocation of rolling stock

The GNSS (Global Navigation Satellite System) makes it possible to monitor the train in real time, to optimize track occupancy and to improve safety throughout the European rail network.

📘Discover GNSS — European Railway Agency