As rail networks face increasing pressure to improve operational efficiency and passenger safety, Worldsensing is leading the charge in digital transformation with the launch of its new railway-dedicated GNSS Meter (LSG7GNS-SXLH-RAI).
Designed specifically for long-term, high-precision tracking of 3D displacements, this innovation brings a new level of absolute accuracy to rail track monitoring, moving the industry beyond the limitations of periodic manual inspections.
Bridging the gap in track geometry
Maintaining optimal track geometry, specifically cant (superelevation) and twist, is essential for helping prevent derailments and ensure long-term infrastructure stability. While traditional tiltmeters are excellent for measuring relative changes, the new GNSS solution provides the missing link: an absolute reference point.
By utilizing Real-Time Kinematic (RTK) principles, the GNSS Meter delivers millimetric accuracy through hourly aggregated data transmission and 24-hour consolidation. This ensures that geotechnical engineers and rail operators have a definitive, validated baseline to calibrate other sensors and survey methods.
Data-driven precision in the field
In practice, the GNSS Meter for rail track monitoring allows for continuous, real-time tracking of:
- Horizontal alignment: Detecting lateral displacements before they compromise safety.
- Vertical alignment: Monitoring track elevation changes such as settlement or heave.
- 3D displacement: Providing a comprehensive view of how the track moves in space over time.
“Ensuring railway performance goes beyond periodic checks; it requires continuous, high-precision data. By combining GNSS accuracy with tiltmeters installed on sleepers, we provide a complete, real-time view of track behavior, a key enabler for predictive maintenance and risk mitigation.”
Juan Perez, Head of Instrumentation, Worldsensing.
A proven solution for modern infrastructure
The GNSS Meter for rail track monitoring is a specialized customization of Worldsensing’s proven GNSS technology, specifically validated for the rigors of the railway environment. As rail operators transition toward “smart” infrastructure, this tool offers the reliability needed to support automated alerts and long-term structural health monitoring.
The integration of absolute GNSS monitoring reduces the need for frequent on-site manual surveys, lowering costs and minimizing the time personnel spend in high-risk trackside environments.