Redundant UTC (universal coordinated time) time synchronization server

Abstract

The invention discloses a redundant UTC (universal coordinated time) time synchronization server which comprises a main processor, a high-precision clock, two GPS (global positioning system) interfaces, five synchronization interfaces and two power module interfaces. The GPS interface receives a GPS time signal; and the main processor performs checking, processing and time correction operations on the time signal, and provides a time synchronization service through the five synchronization interfaces by using the high-precision clock when the GSP interface fails. The redundant UTC time synchronization server disclosed by the invention obtains high-precision time information based on an atomic clock from a GPS, provides five time synchronization interfaces each of which has a redundancy function, continuously and stably provides time synchronization services, and fundamentally ensures the time precision of all computer systems, upper computers and lower computers in the system.

Description

technical field [0001] The invention relates to a time synchronization server, in particular to a redundant UTC time synchronization server. Background technique [0002] With the development of science and technology and the wide application of computer technology, various instruments and control systems in industrial control are becoming more and more advanced. Many fields such as time, sequence recording, relay protection, fault location, power calculation, real-time Information, acquisition, etc. all need a unified, high-precision time reference. The traditional time synchronization system generally uses an internal crystal oscillator, and its time accuracy is not high. During the long-term operation, there will be time errors between computer systems, between the upper computer and the lower computer, and between the lower computers. It has adverse effects, especially when continuous faults occur, it is impossible to analyze the fault starting point based on the fault ...

AI Technical Summary

Problems solved by technology

The traditional time synchronization system generally uses an internal crystal oscillator, and its time accuracy is not high. During the long-term operation, there will be time errors between computer systems, between the upper computer and the lower computer, and between the lower computers. It has adverse effects, especially when continuous faults occur, it is impossible to analyze the fault starting point based on the fault time. For the above defects, an external high-precision crystal oscillator is usually used

However, due to long-term operation of high-precision crystal oscillators, drift will also occur, and it is impossible to synchronize pulses with multiple crystal oscillators in the system, which cannot meet the requirements of precision timing and time uniformity

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