Throughout the world Continuous Welded Rail (CWR) has revolutionised rail technology. CWR is preferred on lines with high speed, high axle loads or high traffic density. However, one of the disadvantages is the generation of temperature induced rail stresses. On a typical heavy haul line where CWR is used, up to 60% of train delays can be attributed to over stressing of the track infrastructure.
For this reason, we have developed a rail stress monitoring system (embedded longstress management system). The aim of the system is to measure rail stress and temperature, thereby creating realtime warnings of possible rail breaks and kick-outs. This enables maintenance engineers to de-stress the track regularly, ensuring a stress-free and safe infrastructure.
Field System Components
- Field monitoring stations placed at carefully selected stress points along the track
- Data amplifier acquisition & transfer modules
- A central server capable of receiving and storing the data
- Software responsible for reducing and presenting the data and stress information
Software Components
- Database module
- Calculation & Modelling (trending and forecasting) modules
- Graphical representation module with maintenance and alarm conditions
- Report generation module
Features
- Standalone or as a node in a network of embedded longstress management systems
- Steel cover plate for protection of sensors
- Ultra low voltage sleep mode
- Solar power extends life of the battery
Benefits of the Rail Stress Monitoring System
Realtime Measurement
- Realtime calculation of longstress and temperature
- Reporting at set intervals throughout the day/night
- Measurement stations status
Early Warning System
- Realtime alarm warnings to central control room of possible breaks/kick-outs
- Assists in derailment prevention
- Maintenance cost savings
Intelligent Maintenance
- Monthly maintenance advisor
- System expandability
- Accurate forecasting
- Accurate forecasting
Internet of Things Solution
- Connection technologies available for sites with weak/no cellular connectivity
- Seamless connection to reporting server