Título:
|
Track detection in railway sidings based on MEMS gyroscope sensors
|
Autor/a:
|
Broquetas Ibars, Antoni; Comerón Tejero, Adolfo; Gelonch Bosch, Antonio José; Fuertes Armengol, José Mª; Castro Fernández, José Antonio; Felip, Damià; López Márquez, Miguel Ángel; Pulido, Jose Antonio
|
Otros autores:
|
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció; Universitat Politècnica de Catalunya. CSC - Components and Systems for Communications Research Group; Universitat Politècnica de Catalunya. GR-DCS - Sistemes Distribuïts de Control |
Abstract:
|
The paper presents a two-step technique for real-time track detection in single-track railway sidings using low-cost MEMS gyroscopes. The objective is to reliably know the path the train has taken in a switch, diverted or main road, immediately after the train head leaves the switch. The signal delivered by the gyroscope is first processed by an adaptive low-pass filter that rejects noise and converts the temporal turn rate data in degree/second units into spatial turn rate data in degree/meter. The conversion is based on the travelled distance taken from odometer data. The filter is implemented to achieve a speed-dependent cut-off frequency to maximize the signal-to-noise ratio. Although direct comparison of the filtered turn rate signal with a predetermined threshold is possible, the paper shows that better detection performance can be achieved by processing the turn rate signal with a filter matched to the rail switch curvature parameters. Implementation aspects of the track detector have been optimized for real-time operation. The detector has been tested with both simulated data and real data acquired in railway campaigns. |
Abstract:
|
Peer Reviewed |
Materia(s):
|
-Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura::Sensors i actuadors -Microelectronics -Track detection -MEMS gyroscope -Adaptive matched filtering -Railway navigation -Microelectrònica |
Derechos:
|
|
Tipo de documento:
|
Artículo - Versión publicada Artículo |
Editor:
|
Multidisciplinary Digital Publishing Institute (MDPI)
|
Compartir:
|
|