Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Time synchronization method and device

A time synchronization and clock synchronization technology, applied in the synchronization field, can solve problems such as being easily affected by network topology changes and poor time synchronization accuracy, so as to solve the problem of poor time synchronization accuracy, improve time accuracy and stability, and reduce the impact Effect

Active Publication Date: 2021-09-03
SHENZHEN ZHONGXING SOFTWARE CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a time synchronization method and device to at least solve the problems of poor time synchronization accuracy and susceptibility to network topology changes in related technologies

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
  • Time synchronization method and device
  • Time synchronization method and device
  • Time synchronization method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An application scenario of the embodiment of the present application is: a network element completes frequency synchronization through a selected frequency synchronization algorithm, and then uses the operation result of the frequency synchronization algorithm to realize network time synchronization. Wherein, the selected frequency synchronization algorithm is Synchronization Status Message algorithm (SSM, Synchronization Status Message) in this solution. The implementation principle of using the results of the frequency synchronization algorithm to realize the time synchronization of the network is as follows: the master-slave relationship (that is, the port status) obtained based on the SSM algorithm, through the protocol interaction method ( Figure 6 The interaction about the PLL in the middle) is locked on the network element (or locked on the network element port), and then based on this (calculated by SSM) port status, the network time synchronization is realized ...

Embodiment 2

[0053] In this embodiment, a time synchronization device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has been described will not be repeated. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0054] image 3 is a structural block diagram of a time synchronization device according to an embodiment of the present invention, such as image 3 As shown, the device includes:

[0055] The obtaining module 30 is configured to obtain a clock synchronization result based on a network element determined through a clock synchronization algorithm. Optionally, the clock synchronization result includes: a port status of a specified port in the net...

Embodiment 3

[0064] The time synchronization method provided in this embodiment includes the following processing steps:

[0065] Step 501: The clock node extracts the best master clock of SSM according to the synchronization status information, and the best master clock of SSM is used as the best master clock for frequency synchronization;

[0066] Step 501 further includes:

[0067] Such as Figure 4 Shown: The clock synchronization network is established between the devices in the form of a ring network, and the main link (SEC1--SEC2------SEC6) and the backup link (SEC1--SEC6------SEC2) are completed. ) clock source configuration. The illustration only describes the configuration of a single ring, and a large-scale network is configured in layers according to the core layer, aggregation layer, and access layer. Figure 4 The meanings represented by SEC or EEC in the SEC identify the network device in the embodiment of the present application, which meets the clock requirements of a cla...

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 present invention provides a time synchronization method and device, wherein the time synchronization method includes: performing time synchronization of the network element based on a clock synchronization result determined by the network element through a clock synchronization algorithm.

Description

technical field [0001] The present invention relates to the field of synchronization, in particular to a time synchronization method and device. Background technique [0002] In the packet transmission network, the synchronous Ethernet + 1588v2 clock synchronization method is generally used to establish the synchronization of the system frequency between devices through the synchronous Ethernet, and to realize the time synchronization through the precise time synchronization protocol (PTP). Among them, since the clock includes frequency and and / or time, therefore, clock synchronization includes frequency synchronization and / or time synchronization. The processing flow of the above synchronization process is roughly divided into two parts: [0003] (1) Establishment of 1588v2 time synchronization network: receive and authenticate notification messages from other clock (time) ports; use the best master clock (Best Master Clock, referred to as BMC) algorithm to determine the r...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04L12/437
CPCH04J3/0658H04J3/0661H04L12/437H04J3/06
Inventor 都美江罗彬何力
Owner SHENZHEN ZHONGXING SOFTWARE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com