公开(公告)号：US11702119B2

公开(公告)日：2023-07-18

申请号：US17316361

申请日：2021-05-10

Applicant: ALSTOM Transport Technologies

Inventor： Jeffrey Fries ,  Chris Schuchmann ,  Richard Lawson ,  Shawn Clark ,  John Ross

IPC: B61L25/06 ,  G01V3/02 ,  G01N27/04

CPC classification number: B61L25/06 ,  G01N27/041 ,  G01V3/02

Abstract: A method is for determining a status of a track section of a railroad. Each end of the track section is connected to a respective detector. One of the two detectors transmits a current along the rails of the track section towards the other detector and receives a current transmitted along the rails of the track section from the other detector. The track section is further equipped with a computer in communication with the two detectors. The computer calculates an instant value of the status of the track section as a function of an instant vector based on a measure of an intensity of the current transmitted by a first of the detectors as measured by the first detector (Txl1), a measure of an intensity of the current received by the first detector as measured by the first detector (Rxl1) and a measure of an intensity of the current transmitted by the second detector as measured by the second detector (Txl2).

公开(公告)号：US11643122B2

公开(公告)日：2023-05-09

申请号：US16719482

申请日：2019-12-18

Applicant: ALSTOM Transport Technologies

Inventor： Maximo Salinas ,  Jeffrey Fries ,  John Ross ,  Shawn Clark ,  Phillip Martin

IPC: B61L27/70 ,  H04B1/02 ,  H04L67/12

CPC classification number: B61L27/70 ,  H04B1/02 ,  H04L67/12

Abstract: A wayside to railway vehicle communication method including providing a first wayside device with a transmitter device capable of transmitting a data packet message to a railway vehicle travelling along a section of a railway track, through an electric waveform put into a rail of the section, and sending at least one message from the transmitter device to the railway vehicle, wherein the at least one message corresponds to the conversion of the data packet into a modulated electric waveform, the data packet including several data bits providing information relative to a plurality of speed limits the railway vehicle has to respect while travelling along respective portions of the section.