Geintra

This work proposes a train wheel detection system based
on an electromagnetic sensor array. This sensor array is
distributed in points along a section of the railway. Each
sensor of the ayay is located next. to the rail without
additional electronics in this place. All the electronic
signal process equipment is concentrated at a place far
away the rail. To compensate the attenuation in the wires
and the external noise, it is proposed to use a signal coded
with Golay sequences. Combining the properties of the
Golay sequences with the characteristics of the proposed
sensor array, it is possible to detect the passage of the
train by scattered points, and also to recognize the sense
of circulation and estimate the speed of the train.