System for Railway Track Diagnostics
Railway Track is an integrated system for railway track diagnostics perfectly suitable for
applications on high-speed trains (up to 350 kmph).
Based on inertial, optical, satellite and geoinformational technologies, Railway Track provides track geometry measurements as well as diagnostics of short irregularities on the rail surface.
Railway Track is an integrated system for railway track diagnostics providing track geometry measurements as well as diagnostics of the short irregularities on the rail surface. Based on inertial, optical, satellite and geoinformational technologies, RailwayTrack is intended for applications on high-speed trains (up to 350 km/h). Because of the modular build Railway Track can be mounted on the bogie of any regular passenger or freight train as well as integrated in the software and hardware of track inspection vehicles.
The track geometry parameters are measured according to the standard EN 13848 with a specially designed strapdown inertial navigation system (SINS). At the same time SINS with the GNSS receiver provides a precise localization of measuring point through geographic (latitude and longitude) coordinates and track ones.
The Railway Track comprises modular units as follows:
- SINS with GNSS receiver
- Optical scanners
- Video recorders
- Data processing unit
Railway Track features
- Track geometry measurements according to the standard EN 13848
- Contactless rail defects diagnostics
- Applicable for high-speed trains
- Modular implementation
- High positioning accuracy
- Combination of cutting-edge technologies in optoelectronics, inertial navigation, GIS, image processing
- Easy to install and operate
Railway Track structure
Railway Track hardware
A specially designed for railway applications Strapdown Inertial Navigation System (SINS) GNSS aided. A monoblock unit with SINS and the surface analyzer (a pair of laser scanners) is mounted right on the bogie frame which improves the track geometry measurement accuracy.
IMUs based on MEMS (Micro-Electro Mechanical Systems) inertial sensors, are relatively low-cost, small-sized, and able to function in heavy shock and vibration conditions, with severe electromagnetic interference and temperature gradient. A set of four IMUs mounted on the axle boxes is used for rail surface irregularities detection.
|Track gauge, longitudinal level, alignment, cross level, twist||0.5 mm|
|Track coordinate (with satellite receiver and odometer aiding)||0.2 m|
|Rail surface defects|
|Corrugations, squats, wheelslip surface defects, wheelburns||0.5 mm|
|Navigation and attitude parameters|
|Geographical coordinates (latitude and longitude)||1 m|
|Roll and pitch||0.07 deg|
|Car-track dynamic interaction||Range|
|Rate||± 200 °/s|
|Acceleration||± 20 g and ± 35 g|
|Speed range||5 ... 350 km/h|
|Data output rate||1 kHz|
|Readiness time||max 15 min|
|Operating system||Windows / Linux|
|Interface||USB, Ethernet, etc|
|Supply voltage||220 V AC|
|Power consumption||< 50 W|
|Operating temperature||-40° C ... +60° C|