1588 system and method thereof for achieving synchronization

Abstract

The invention discloses a method of a 1588 system for achieving synchronization, comprising steps that a main clock acquires a timestamp; the main clock calculates a master-slave time difference according to the acquired timestamp; a control value and / or a phase control value of an adjusted frequency is calculated according to the master-slave time difference and a configured synchronization algorithm; the calculated control value is sent to a slave clock; and the slave clock carries out time synchronization. The invention also provides the 1588 system. According to the technical scheme disclosed by the invention, the synchronization precision of the whole-network clocks based on the 1588 system can be improved.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a 1588 system and a method for realizing synchronization thereof. Background technique [0002] At present, when implementing clock synchronization based on the IEEE 1588 protocol, the master clock (master) sends a time stamp to the slave clock (slave), a synchronization algorithm is configured in the slave clock, and the slave clock calculates the master-slave time difference (offset). If you want to achieve high-precision clock synchronization, you need to separate part of the software resources and hardware resources from the clock to achieve high-precision clock synchronization, and the slave clock has other important functions in the network node, so the improvement of The design difficulty of the slave clock is not conducive to the popularization and promotion of the 1588 system. In addition, at present, the synchronization algorithms of the slave clocks of various manufa...

AI Technical Summary

Problems solved by technology

If you want to achieve high-precision clock synchronization, you need to separate part of the software resources and hardware resources from the clock to achieve high-precision clock synchronization, and the slave clock has other important functions in the network node, so the improvement of The design difficulty of the slave clock is not conducive to the popularization and promotion of the 1588 system

In addition, at present, the synchronization algorithms of the slave clocks of various manufacturers are different. Therefore, although the master clock sends the timestamp to the slave clocks, the master-slave time difference calculated by the slave clocks using different synchronization algorithms is quite different, resulting in the entire network. The clock synchronization accuracy is low, and there is no specific technical solution to solve this problem

Images