Cloud synchronization method of high-precision timing system of optical network

An optical fiber network and timing system technology, which is applied in the field of cloud synchronization of optical fiber network high-precision timing systems, and can solve the problems of limited timing transmission distance and limited cascading times.

Active Publication Date: 2014-07-09
四川泰富地面北斗科技股份有限公司
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a solution to the problem that the limited number of concatenations of devices on the reference timing link leads to the limited timing transmission distance, and eliminate the drift caused by optical fiber aging and temperature changes that will continue to accumulate as the transmission d

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cloud synchronization method of high-precision timing system of optical network
  • Cloud synchronization method of high-precision timing system of optical network
  • Cloud synchronization method of high-precision timing system of optical network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Using the cloud synchronization method to realize the band cloud synchronization network based on optical fiber network in Xi'an→Taiyuan→Shijiayu→Beijing, such as figure 1 . figure 1 Middle: Master001 refers to the grid node of the National Time Service Center (Shaanxi Observatory in Xi'an); Master002 is the grid node of the National Time Service Center in Beijing. The distance between them is about 1200 kilometers. Between the two centers are as follows figure 1 The single-fiber bearer network of the mode is a belt-shaped national "level 0" Xi'an→Beijing backbone cloud synchronization network with a width of 150km to 300km and a length of 1200km.

[0069]Optical cable transmission optical relay distance of 75 kilometers to 100 kilometers or longer (200 kilometers), along the direct route of the "level 0" seamless cloud synchronization backbone network, online monitoring of fiber delay changes in the optical cable step by step , and through the installation of progra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a cloud synchronization method of a high-precision timing system of an optical network. Compared with time synchronization technologies in the prior art, the cloud synchronization method achieves transmitting of ultraprecise time frequency through bidirectional comparison in a one-fiber transmitting mode; besides, the cloud synchronization method is provided, a four-level cloud synchronization network on the standard of the ultraprecise time frequency is transmitted through one fiber can be built for supporting ground-based timing, the high-precision ground-based timing system based on the ground optical network is formed, and therefore the high-precision timing system is formed, the high-precision timing system and a space-based timing system are standbys for each other and support each other, a ultraprecise timing service is provided for a national defense and military network of China anyplace and anytime, and an extremely accurate regenerated UTC atomic time ultraprecise time frequency standard is provided for a civil communication network and various special communication networks.

Description

technical field [0001] The invention relates to the technical fields of an ultra-precise time-frequency synchronization system and optical fiber communication, in particular to a cloud synchronization method for a high-precision time service system of an optical fiber network. Background technique [0002] Satellite navigation positioning and timing systems are one of the most critical national infrastructures. At present, several major countries in the world are actively developing their own high-precision time and frequency unified systems, such as GPS in the United States, GLONASS in Russia, GALILEO in Europe, and Beidou satellite navigation system in China. However, these are all based on satellite navigation systems Space-based timing system. Because the space-based timing system has defects such as being easily disturbed by the outside world, greatly affected by the weather, and can only cover open places, my country has attached great importance to the research of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04J3/06H04L29/08
Inventor 李有生向培丁巍李琦孟志才李高峰李忠文彭良福
Owner 四川泰富地面北斗科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap