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Permanent Train Positioning

Standard Components Used in this Example

This system for train positioning was implemented using an individually configured version of the BL50W standard box PC. Using conduction cooling it can operate in a temperature range of -40 to +85°C and complies with the EN 50155 railway standard.

Equipped with two antennas, the box receives GPS data sent from several satellites and forwards them to the control center via UMTS, where the position and the current speed are calculated.

Due to differentiated GPS, a location accuracy of less than 3 meters can be provided, which means that the exact track can be determined. Equipped with an odometer, implemented via the PX1 PCI Express Mini Card, the system supports dead reckoning functionality. This ensures that the exact position of a vehicle can be identified, even if the satellite signal is interrupted, for example while moving through a tunnel.

The exact positioning down to the track offers crucial advantages regarding track utilization, waiting times and power consumption.

The system can be further expanded by Wi-Fi, MVB and serial interfaces.

Standard Components Used in this Example

BL50W - Rugged Box PC for Transportation with AMD G-Series

The BL50W is a rugged, fanless EN 50155 railway and E-Mark automotive box computer, based on an AMD dual-core T48N. It is used as railway communication and management computer, and - thanks to its built-in multitude of wireless interfaces - as passenger information and internet access system for public transportation.

PX1N - GLONASS & GPS Interface

The PX1N is a PCI Express Mini Card providing a GNSS receiver with GLONASS and GPS functionality and can be used in 19" systems, box PCs and display computers. It supports active or passive antennas, which can be connected to an U.FL connector. The received antenna signals are sent to the host via USB.

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