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Method for time synchronization of network time protocol (NTP) server

A server time and time synchronization technology, which is applied in the direction of synchronization devices, digital transmission systems, electrical components, etc., can solve problems such as access congestion and inconsistent time of each server, and achieve the effect of avoiding confusion, accurate and stable work, and realizing time synchronization

Inactive Publication Date: 2013-02-06
SICHUAN CHANGHONG ELECTRONICS SYST
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to propose a method for NTP server time synchronization aiming at the existing problem that the time of each server is inconsistent due to the access congestion and delay of the NTP server

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  • Method for time synchronization of network time protocol (NTP) server

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, describe technical scheme of the present invention in detail:

[0017] The method for a kind of NTP server time synchronization of the present invention, main steps are: at first setting NTP-S time synchronization server as the upper-layer time server of each business server, wherein NTP-S time synchronization server and Internet upper layer as clock source NTP-T server time synchronization; then the NTP-S time synchronization server performs time synchronization with the NTP-T server many times during the working process, and obtains the time difference between the NTP-S time synchronization server and the NTP-T server, and obtains the NTP- The unit time drift rate of the S time synchronization server; and then calculate the synchronization time between the NTP-S time synchronization server and the NTP-T server according to the unit time drift rate of the NTP-S time synchronization server and the maximum time error value t...

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Abstract

The invention relates to a time synchronization technique of a relevant server in an internet, in particular to a method for time synchronization of a network time protocol (NTP) server used for an internet monitoring system. The overall technical scheme of the method is that time synchronization with each server is carried out through additional arrangement of NTP-S time synchronization servers, the time synchronization is carried out between the NTP-S time synchronization servers and each relevant server, the time synchronization is carried out between the NTP-S time synchronization servers and each NTP-T server in a fixed period, problems of blocking and delaying caused by the fact that a distance between an upper layer NTP-T server and each server is long and number of visiting users is large are solved, and time of each server can effectively synchronized. The method has the advantages of achieving time synchronization of each server, avoiding confusion of clocks of each server, and accordingly enabling each relevant server based on the time synchronization to accurately and stably work. The method is particularly suitable to internet time synchronization servers.

Description

technical field [0001] The invention relates to the time synchronization technology of associated servers in the Internet, in particular to a method for time synchronization of an NTP server in an Internet monitoring system. Background technique [0002] At present, many services in the video interconnection monitoring system depend on time, such as the storage, playback, and download of surveillance video, and the automatic startup, shutdown, and update of monitoring functions. With the development of the Internet, there are more and more servers that need to synchronize time, which puts more and more pressure on the NTP (network time protocol) servers. [0003] The NTP server provides time synchronization service for each server of the video interconnection monitoring system, and the NTP server of each server in the video interconnection monitoring system directly synchronizes the time from the upper layer NTP server such as the Internet. Since the NTP server on the upper...

Claims

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Application Information

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IPC IPC(8): H04L7/00H04L29/06
Inventor 吴龙唐军
Owner SICHUAN CHANGHONG ELECTRONICS SYST
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