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1. EP2125482 - VITAL SOLID STATE CONTROLLER

Office European Patent Office
Application Number 07866027
Application Date 26.12.2007
Publication Number 2125482
Publication Date 02.12.2009
Publication Kind B1
IPC
B61L 27/00
BPERFORMING OPERATIONS; TRANSPORTING
61RAILWAYS
LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
27Central traffic control systems
CPC
B61L 27/0061
BPERFORMING OPERATIONS; TRANSPORTING
61RAILWAYS
LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
27Central traffic control systems ; ; Track-side control or specific communication systems
0061Track-side multiple control systems, e.g. switch-over between different systems, "2 out of 3"-systems
Applicants CENTRAL SIGNAL LLC
Inventors BALDWIN DAVID
ASHRAF AHTASHAM
Designated States
Priority Data 87160906 22.12.2006 US
88493007 15.01.2007 US
Title
(DE) VITALE FESTKÖRPERSTEUERUNG
(EN) VITAL SOLID STATE CONTROLLER
(FR) DISPOSITIF DE COMMANDE D'ÉTAT SOLIDE VITAL
Abstract
(EN)
A vital programmable logic device (VPD) is provided having at least two microprocessors. The VPD is configured to provide failsafe operation of a vital control system while operating in a closed circuit environment. In at least one embodiment of the present invention, railroad grade crossing signals are controlled by the VPD.

(FR)
L'invention concerne un dispositif de logique programmable vital (VPD) ayant au moins deux microprocesseurs. Le VPD est configuré pour permettre un fonctionnement sans défaut d'un système de commande vital tout en fonctionnant dans un environnement en circuit fermé. Dans au moins un mode de réalisation de la présente invention, des signaux de passage à niveau sont commandés par le VPD.

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