Safety-related acceleration and vibration measurement system

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Problem

  • Rail transport is subject to high loads.
  • Sliding or spinning of a driven wheel on a rail leads to severe wear.
  • This results in enormous cost increases for maintenance and repair.
  • Skid and slide detection are difficult due to the high loads.

Solution approach

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

System architecture:

  • Control unit developed for SIL 3 according to 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.