公开(公告)号：US10661817B2

公开(公告)日：2020-05-26

申请号：US15910284

申请日：2018-03-02

Applicant: ALSTOM Transport Technologies

Inventor： Maximo Salinas ,  Jared Cooper ,  Nels Jorgensen

IPC: B61L25/02 ,  G01S19/50 ,  G01S19/22

Abstract: The invention concerns a method for determining the location of a railway vehicle comprising a first navigation module determining a regular resolution position of the railway vehicle with a first accuracy measurement and a second navigation module determining a high resolution position of the railway vehicle with a second accuracy measurement, using the received signals. The method comprises the steps of determining a first confidence area around the regular resolution position, based on the first accuracy measurement, of determining a second confidence area around the high precision position, based on the second accuracy measurement, and of assigning a weight of confidence to the knowing of the actual location of the railway vehicle, by analyzing the overlay of the first and the second confidence areas and the first and the second accuracy measurements.

公开(公告)号：US20190270465A1

公开(公告)日：2019-09-05

申请号：US15910284

申请日：2018-03-02

Applicant: ALSTOM Transport Technologies

Inventor： Maximo Salinas ,  Jared Cooper ,  Nels Jorgensen

IPC: B61L25/02 ,  G01S19/50

Abstract: The invention concerns a method for determining the location of a railway vehicle comprising a first navigation module determining a regular resolution position of the railway vehicle with a first accuracy measurement and a second navigation module determining a high resolution position of the railway vehicle with a second accuracy measurement, using the received signals. The method comprises the steps of determining a first confidence area around the regular resolution position, based on the first accuracy measurement, of determining a second confidence area around the high precision position, based on the second accuracy measurement, and of assigning a weight of confidence to the knowing of the actual location of the railway vehicle, by analyzing the overlay of the first and the second confidence areas and the first and the second accuracy measurements.

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.