System und Verfahren zur Bestimmung der Geschwindigkeit eines Fahrzeugs basierend auf Gps-Geschwindigkeit

Details

Veröffentlichungs-Nr.

EP2966476

Aktenzeichen

EP15173698

Anmeldetag

24. Juni 2015

Veröffentlichung

2. Januar 2019

Erteilung

2. Januar 2019

Rechtsraum

EP

IPC

G01S19/40G01S19/52// G01P21/00G01P3/42G01S19/13

Abstract

A method and system for determining a speed of a vehicle based on a GPS speed captured from a Global Positioning System (GPS). A capturing module (212) captures GPS speed V x and a horizontal accuracy value corresponding to a time stamp T x . A speed modification module (214) modifies the GPS speed V x corresponding to the time stamp T x . A speed correcting module (216) corrects the GPS speed V x corresponding to the time stamp T x . The GPS speed may be corrected by filtering an error in the GPS speed by using a Slope dependent averaging (SDA) filter in order to obtain a first corrected speed V x '. Further, the first corrected speed is corrected by selecting one of a centre weight (CW) filter and an edge weight (EW) filter, based upon a pre-defined condition, in order to obtain a second corrected speed V x " indicating the speed of the vehicle.

Anmelder

Firma

Tata Consultancy Services Limited

Land

🇮🇳 Indien

Fachgebiete