公开(公告)号：US20210109207A1

公开(公告)日：2021-04-15

申请号：US17066946

申请日：2020-10-09

Applicant: THALES CANADA INC.

Inventor： Adam LE ,  Tyler DAOUST ,  David BEACH ,  Alon GREEN

IPC: G01S13/60 ,  B61L25/02 ,  G01S13/86

Abstract: A system for determining a stationary state of a rail vehicle on a track includes a first radar mounted at an end of the rail vehicle and a second radar mounted at another end of the rail vehicle. A speed sensor is mounted on the rail vehicle. A series of fixed reflective track features are found along the track. A processing unit, communicably connected with the speed sensor, the first radar and the second radar receives data from the first radar and the second radar corresponding to the distance to the fixed reflective track features and determines the stationary state or low-speed condition of the rail vehicle and checks the state or condition by comparing it with an output of the speed sensor.