Inertial Navigation Sensors: MEMS IMU, Accelerometers, Gyroscopes, AHRS, GPS-INS & Point Cloud Generation
RMCU Railway Motion Control Unit

Railway Motion Control Unit

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The Inertial Labs RMCU utilizes 3-axes, each precision MEMS accelerometer, miniature Fluxgate magnetometers, and MEMS gyroscopes to provide accurate Heading, Pitch, and Roll of the device under the measure. Integration of gyroscopes’ output provides high-frequency, real-time measurement of the device rotation about all three rotational axes. Accelerometers and Fluxgate magnetometers easure absolute, very accurately in static and dynamic conditions Pitch, Roll, and Heading/Azimuth at RMCU initial alignment and provide ongoing corrections to gyroscopes during operation.

  • EN 45545, EN 50155 and EN 50011 Railway standards compliant solution
  • One model with multiple configurations at an exceptional price performance ratio
  • State-of-the-art algorithms for different Railway Platforms
  • Highly accuracy miniature Fluxgate magnetometer
  • Gyro-Stabilized Slaved Magnetic Heading
  • Suitable for Trains Motion Control and Primary Attitude Reference
  • Advanced Kalman Filter based sensor fusion algorithms
  • Embedded 2D and 3D magnetic calibration on hard and soft iron
  • All solid-state components (no moving parts)
  • Full temperature calibration of all sensing elements
  • Environmentally sealed (IP67)
  • Compact design
Heading Accuracy 0.3º static
0.6º dynamic
Pitch & Roll Accuracy 0.05º static
0.08º dynamic
Gyroscopes <2º/hr Bias in-run stability
Accelerometers 0.005 mg Bias in-run stability (8g)
Magnetometer Mini Fluxgate Magnetometer
Size (mm) 129 × 53 × 49
Weight (gram) 120
Applications Railway, Monitoring, Navigation Safety
Certifications EN 45545, EN 50155, EN 50011