Cycle synchronization between interconnected sub-networks

Details Cycle synchronization between interconnected sub-networks Cycle synchronization between interconnected sub-networks

2007-02-27

2007-02-27

Pham, Chi (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S503000, C370S516000

Reexamination Certificate

active

09972208

ABSTRACT:
A method to perform a cycle synchronization between interconnected sub-networks, in which a reference node connected to one of the sub-networks transmits a respective cycle time information to cycle masters of all other sub-networks at recurring time instants, and the cycle masters of all other sub-networks adjust their cycle time accordingly. An adjustment of the cycle time within a cycle master is performed by determining a first time interval (Δt1, Δt1′) in-between two receptions of cycle time information from the reference node with an own clock, determining a second time interval (Δt2, Δt2′) in-between two corresponding transmissions of cycle time information from the reference node on basis of the received cycle time information, comparing the first time interval (Δt1, Δt1′) and the second time interval (Δt2, Δt2′), and adjusting the own cycle length according to the comparison result.

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