Method for avoiding function disablements for intelligent electronic units

US12328183B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Andrej Görbing · Berlin, DE
• JI-BAO CHEN · Nanhu, CN
• Stefan Flemming · Buchschwabach, DE
• Igor Kogan · Berlin, DE
• Oliver Lindner · Langer Grund, DE

Key dates

• Filing date: Aug 7, 2024
• Grant date: Jun 10, 2025
• Expiry date: Aug 7, 2044

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W84/12
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method for avoiding function disablements of intelligent electronic units IEDs that are connected in a local network which has at least two timing units. One of the timing units assumes an active grandmaster role as a synchronization source while the other timing units remain in their slave state and synchronize with the timing unit in the grandmaster role. When one of the timing units changes from the slave state to the grandmaster role, a pre-synchronization message is used to notify all IEDs in the local network whether and, if applicable, with which previous grandmaster timing unit the present grandmaster timing unit was synchronized. This avoids a disablement of the function of the IEDs that generate or process data streams whose samples have been acquired in sync with the previous grandmaster timing unit.