The High Integrity GNSS/ INS Based
Train Position Locator
Author(s)
A. Filip, J. Taufer, H. Mocek, L. Bažant & V. Maixner
Abstract
Integration of a GNSS receiver with additional inertial sensors can significantly
improve the performance and reliability of the train position locator (TPL).
However, if the TPL is intended for safety related applications like signalling
and train control, it should also be robust to sensor and system failures. This
means that the locator must meet the high safety integrity design and have its
own diagnostics capable of providing timely warnings to a user in the case of a
failure.
This paper deals with the high integrity architecture of the TPL. The
architecture consists of the two fundamental subsystems: 1) the dual navigation
system providing the state vector estimate by means of the two independent
navigation loops and 2) autonomous safety integrity monitor (AIM) which
continuously checks the safety in
Keywords
Related Book
Other papers in this volume
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