Zeitsynchronisierung über Redundante und Deterministische Schaltbasierte Avioniknetzwerke

Details

Veröffentlichungs-Nr.

EP3812875

Aktenzeichen

EP20203925

Anmeldetag

26. Oktober 2020

Veröffentlichung

18. Januar 2023

Erteilung

18. Januar 2023

Rechtsraum

EP

IPC

G06F1/04G06F1/12H04J3/06H04L12/40H04L12/44H04L67/12

Abstract

A system for time synchronization over redundant switch-based avionics networks is disclosed. The system includes a master or source clock (104) for determining precise UTC timing information from received satellite signals and generating time marks based on the timing information. The source clock generates network-compatible timing messages and forwards the timing messages to network switches (106) within the switch-based avionics networks. The network switches modify the timing information to account for switch-based delays and forward the modified timing messages to destination clocks (124) in aircraft end systems (108). The end systems relay timing messages back to the source clock via the network switches, the timing information again modified by the network switches according to switch-based delays, and based on the precise timing information exchanged destination clocks in end systems throughout the switched network can precisely synchronize to the source clock.

Anmelder

Firma

Rockwell Collins, Inc.

Land

🇺🇸 USA

Fachgebiete