公开(公告)号：US12181602B2

公开(公告)日：2024-12-31

申请号：US17649649

申请日：2022-02-01

Applicant: Hitachi Rail GTS Canada Inc.

Inventor： Alon Green ,  Kevin Tobin ,  Marco De Thomasis

IPC: G01S7/40 ,  B61K13/00 ,  G01S13/931

Abstract: Systems and method of calibrating a range measurement system for a vehicle mounted on a guideway are disclosed. In some embodiments, a method includes: measuring a first time of transmission (TOT) between a first internal component of an on-board range measurement device and a second internal component of a wayside range measurement device. The first TOT is compared with a first pre-determined time. A health of the range measurement system is determined based on a difference between the first TOT and the first pre-determined time.