Predictive maintenance had always been a problem on mobile units such a as propulsion group on train or subways. 01dB-Metravib smart online monitoring system OneproD-MVX now provides a dedicated and cost effective solution to solve this problem.
The Mobile Propulsion group Reliability System (MPRS) allows to continuously monitor the most important information relative to motors, gearboxes and transmission health: vibration, oil quality and process parameters.

To fulfill the objectives, the MPRS is endowed with the 4 main f

• 1) Adapted sensors managements allowing gearboxes, motor and bearing monitoring and analysis.
  The MPMS is designed to acquire a large variety of sensors.
  * Vibration sensors for detection and diagnosis of defects such as rolling element bearing defects (pitting, greasing, etc...), misalignment, unbalance, looseness or gear defects (teeth cracks, general wear, broken teeth, etc...).
  * Oil analysis sensors (mainly total ferrous debris sensor and oil condition sensor) allow for sharpened detection and analysis capabilities. They also play an important role in the optimization of the oil replacement program.
• 2) Automatic diagnosis capabilities
  The MPRS embedded processing capabilities to process the data in real time. The outcome is fast and accurate information regarding the propulsion group mechanical and electrical status.  It also avoids useless bulk of data. Synthetic results can be displayed on the driver dashboard or directly transmitted to the centralized train control and maintenance system.

• 3) The right measurements at the right time
  One of the most challenging problems to solve for online monitoring on mobile propulsion groups is the ever changing working conditions. Measurements must be performed at specifics and known working conditions to be pertinent. Indeed, how to set thresholds or compare measurements if the readings are taken at random speeds or during acceleration?
  

  Thanks to OneproD-MVX the MPRS takes into account all these working conditions and adds the capabilities to set different measurements for different regime.

  Beside the operating condition management, OneproD-MVX also gets all the measurements at once - before the operating conditions are modified again. This unique feature allows for taking a global snapshot of the propulsion group in only few seconds whereas "standard methods" required minutes (tens of minutes in case of  scanning systems) for similar measurements. The outcome is not only a faster response but most of all a superior detection and diagnosis. 
  The measured values include, but not limited to: time waveforms, spectrums, enveloping, overall levels, etc...

• 4) Storage and automatic uploading routine
  With the MPRS all processed data are stored in the system up to the moment where OneproD-MVX is wired/wireless re-connected to the network bearing the OneproD-XPR predictive maintenance platform. Data are then transferred to a centralized or local database. Alarm SMS or email notifications can be set if required as well as communication with Computerised Maintenance Management System (CMMS) if needed