Method for Determination of Interval Estimation of Velocity Magnitude of Railway Vehicle Using GNSS and Subsystem to Implement this Method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F24%3A43976523" target="_blank" >RIV/49777513:23520/24:43976523 - isvavai.cz</a>

Výsledek na webu

<a href="https://worldwide.espacenet.com/publicationDetails/biblio?II=0&ND=3&adjacent=true&locale=en_EP&FT=D&date=20231129&CC=EP&NR=4283342A1&KC=A1#" target="_blank" >https://worldwide.espacenet.com/publicationDetails/biblio?II=0&ND=3&adjacent=true&locale=en_EP&FT=D&date=20231129&CC=EP&NR=4283342A1&KC=A1#</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Method for Determination of Interval Estimation of Velocity Magnitude of Railway Vehicle Using GNSS and Subsystem to Implement this Method

Popis výsledku v původním jazyce

The invention relates to a method for determination of the interval estimation of the velocity magnitude of a railway vehicle using GNSS in the railway environment, during which, initially, an estimate of the vehicle velocity vector, including the confidence ellipsoid are determined in the ECEF WGS84 coordinate system, and subsequently this estimate is transformed into the local END coordinate system; furthermore, from such transformed velocity vector estimate, a 2D estimate of the velocity vector in the horizontal plane is determined, from which a confidence interval of 〈vEN,min, vEN,max〉 representing the estimate of the horizontal velocity magnitude of the vehicle is determined, and subsequently, an estimate vU,max of the maximum possible magnitude of the vertical vehicle velocity is determined from the maximum possible longitudinal slope β max of the track and the design speed of the vehicle or the estimate of the horizontal velocity magnitude of the vehicle, after which the estimates of horizontal and vertical velocity magnitudes are combined into the final interval estimate of the total magnitude of the railway vehicle velocity, and thus obtained estimate is stored into the memory and/or shown on the display. For the aforementioned method, a subsystem is used, which subsystem contains a GNSS receiver (A) receiving signals from GNSS satellites, which receiver is connected to a bus (F) to which Memory 1 (B), a processor (C), Memory 2 (E) and Memory 3 (G) are connected.

Název v anglickém jazyce

Method for Determination of Interval Estimation of Velocity Magnitude of Railway Vehicle Using GNSS and Subsystem to Implement this Method

Popis výsledku anglicky

The invention relates to a method for determination of the interval estimation of the velocity magnitude of a railway vehicle using GNSS in the railway environment, during which, initially, an estimate of the vehicle velocity vector, including the confidence ellipsoid are determined in the ECEF WGS84 coordinate system, and subsequently this estimate is transformed into the local END coordinate system; furthermore, from such transformed velocity vector estimate, a 2D estimate of the velocity vector in the horizontal plane is determined, from which a confidence interval of 〈vEN,min, vEN,max〉 representing the estimate of the horizontal velocity magnitude of the vehicle is determined, and subsequently, an estimate vU,max of the maximum possible magnitude of the vertical vehicle velocity is determined from the maximum possible longitudinal slope β max of the track and the design speed of the vehicle or the estimate of the horizontal velocity magnitude of the vehicle, after which the estimates of horizontal and vertical velocity magnitudes are combined into the final interval estimate of the total magnitude of the railway vehicle velocity, and thus obtained estimate is stored into the memory and/or shown on the display. For the aforementioned method, a subsystem is used, which subsystem contains a GNSS receiver (A) receiving signals from GNSS satellites, which receiver is connected to a bus (F) to which Memory 1 (B), a processor (C), Memory 2 (E) and Memory 3 (G) are connected.

Druh

P - Patent

CEP obor

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OECD FORD obor

20205 - Automation and control systems

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Číslo patentu nebo vzoru

EP4283342

Vydavatel

EPO_1 -

Název vydavatele

European Patent Office

Místo vydání

Munich, The Hague, Berlin, Vienna, Brussels

Stát vydání

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Datum přijetí

6. 11. 2024

Název vlastníka

AZD Praha S.R.O.

Způsob využití

A - Výsledek využívá pouze poskytovatel

Druh možnosti využití

A - K využití výsledku jiným subjektem je vždy nutné nabytí licence