Monitoring Of Combustion Locomotive State
With The Use Of An On-board Device
Author(s)
P. Boguś, J. Merkisz & R. Grzeszczyk
Abstract
This paper presents the current state of the research on the on-board recording
system application for the detection of critical situations in railways. The
estimation of the rail vehicle state is based on signals registered by using a
specialized on-board device. The critical situation of a rail vehicle can consist of
diesel locomotive engine dysfunctions, high vibrations, exceeding of limit
velocity, acceleration or inclination. The monitoring of the vehicle state needs a
set of sensors. The movement parameters are acquired from a GPS device,
accelerometers and gyroscopic MEMS sensors. Especially interesting here is the
application of GPS signals, because GPS not only gives a geographical position,
but also the vehicle velocity. The accelerometer sensors which measured the
acceleration in three perpendicular directions were assigned to operate together
with GPS in order to establish the vehicle position and for the detection of
exceeding any limit acceleration value. The gyroscopic MEMS sensors support
the position and route detection and also show any exceeding in vehicle limit
inclinations. Additionally, some accelerate sensors record the vibroacoustic
signals taken from chosen places on the engine body or other vehicle parts for
the assessment of the engine state, particularly in terms of potential failures. The
analysis of the additional acceleration signals was performed using specialized
signal processing methods and some specialized algorithms based on artificial
intelligence (e.g. Fourier analysis, wavelets, nonlinear methods based on
deterministic chaos theory, short time methods and support vector machines).
The first results are promising and show the possibility of using the above
described approach to detect the combustion locomotive state.
Keywords: combustion locomotive, monitoring and diagnostic, combustion
engine, vibroacoustic signals, on-board devices, signal processing and analysis.
Keywords
combustion locomotive, monitoring and diagnostic, combustionengine, vibroacoustic signals, on-board devices, signal processing and analysis.
Related Book
Other papers in this volume
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