Safety-oriented acceleration and vibration measuring system

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Problem definition

  • Rail transportation is exposed to high loads.
  • Sliding or spinning of a driven wheel on a rail leads to heavy wear.
  • This results in an enormous increase in maintenance and repair costs.
  • Slip and skid detection are difficult to achieve due to the high loads.

Solution approach

  • Development of a safety-oriented acceleration and vibration measurement system for safe skidding and sliding protection to trigger drive and control commands.
  • Safe and fast detection of skidding and sliding processes based on real-time data.
  • Intervention in drive and control commands.

System architecture:

  • Control unit developed for SIL 3 in accordance with IEC 61508.
  • 1oo2D safety processor.
  • 1oo3 Vibration sensor system.
  • Position detection via GPS.
  • Transmission of safe sensor data via Ethernet to control and braking system.
  • Transmission of sensor data to GUI.
  • Local storage of sensor data on SD card.