WO2011134371A1 - Procédé permettant de synchroniser des horloges et dispositif de synchronisation d'horloges - Google Patents
Procédé permettant de synchroniser des horloges et dispositif de synchronisation d'horloges Download PDFInfo
- Publication number
- WO2011134371A1 WO2011134371A1 PCT/CN2011/073194 CN2011073194W WO2011134371A1 WO 2011134371 A1 WO2011134371 A1 WO 2011134371A1 CN 2011073194 W CN2011073194 W CN 2011073194W WO 2011134371 A1 WO2011134371 A1 WO 2011134371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ptp
- gps
- clock
- port
- module
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
- H04J3/0688—Change of the master or reference, e.g. take-over or failure of the master
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
- G06F1/12—Synchronisation of different clock signals provided by a plurality of clock generators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0644—External master-clock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
- H04J3/085—Intermediate station arrangements, e.g. for branching, for tapping-off for ring networks, e.g. SDH/SONET rings, self-healing rings, meashed SDH/SONET networks
Definitions
- the method further includes the steps of:
- the present invention detects the state of all PTP ports of the device to be synchronized, and determines the role of each PTP port according to the setting of the conflict detection mechanism, when the GPS dual-homing network is accessed; On the port, the device to be synchronized is only synchronized with the PTP clock of other devices. This solves the problem of time synchronization when the device has both the GPS protocol and the PTP packet.
- Figure 1 shows a typical time synchronization networking topology
- FIG. 4 is a block diagram of a clock synchronization apparatus according to an embodiment of the present invention. detailed description
- Step 304 detecting whether there is a GPS access on the device, whether there is also a PTP slave port, if yes, go to step 305, if no, go to step 306;
- Step 305 Discard the received GPS message, and then perform step 308;
- the PTP port role of the device is detected. If the PTP ports on the device are the masters of the master port, the device is the master clock GM in the network. Therefore, the device allows GPS access, and use the GPS clock source as the external clock source of the SSM, notify the GPS module to perform normal GPS message reception processing, and simultaneously perform PTP time synchronization processing between the master clock and the slave clock. If the slave port is detected as the slave port in the PTP port role, the device sends a detection packet to the GPS module to notify the GPS module to discard the GPS packet. The master clock and other clocks are sent. Synchronous processing from the clock's PTP.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Electric Clocks (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112012027512A BR112012027512A2 (pt) | 2010-04-26 | 2011-04-22 | método para sincronização dos relógios e dispositivo de sincronização do relógio |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010159330.7A CN102237996B (zh) | 2010-04-26 | 2010-04-26 | 一种同步时钟的方法和时钟同步装置 |
CN201010159330.7 | 2010-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011134371A1 true WO2011134371A1 (fr) | 2011-11-03 |
Family
ID=44860863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/073194 WO2011134371A1 (fr) | 2010-04-26 | 2011-04-22 | Procédé permettant de synchroniser des horloges et dispositif de synchronisation d'horloges |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102237996B (fr) |
BR (1) | BR112012027512A2 (fr) |
WO (1) | WO2011134371A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103648082A (zh) * | 2013-12-06 | 2014-03-19 | 镇江市星禾物联科技有限公司 | 一种基于wifi智能定位及无线链路中的同步方法 |
WO2015078167A1 (fr) * | 2013-11-29 | 2015-06-04 | 中兴通讯股份有限公司 | Procédé et dispositif pour déterminer une source d'horloge de secours, et support d'informations |
WO2019159099A1 (fr) * | 2018-02-15 | 2019-08-22 | Tyco Fire & Security Gmbh | Système de détection de coups de feu avec architecture de synchronisation maître-esclave |
CN111163011A (zh) * | 2020-01-19 | 2020-05-15 | 烟台持久钟表有限公司 | 一种基于ptp协议的无线路由器的数据处理方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102710358A (zh) * | 2012-06-13 | 2012-10-03 | 中兴通讯股份有限公司 | Gm状态的发送方法、装置及系统 |
CN103092067B (zh) * | 2012-12-27 | 2015-12-23 | 盛科网络(苏州)有限公司 | 基于数字逻辑的时间授时方法及系统 |
CN107947887B (zh) * | 2017-12-05 | 2019-06-25 | 郑州云海信息技术有限公司 | 一种基于ptp协议的服务器间时钟同步系统和方法 |
CN110071777B (zh) * | 2019-04-11 | 2020-10-30 | 国网河南省电力公司焦作供电公司 | PTP over PTN的currentUtcOffset参数自适应处理方法 |
CN113395719A (zh) * | 2020-03-11 | 2021-09-14 | 华为技术有限公司 | 一种时钟端口状态处理方法、装置及系统 |
WO2023212874A1 (fr) * | 2022-05-05 | 2023-11-09 | Zte Corporation | Procédé, système et appareil de commutation de synchronisation temporelle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101667909A (zh) * | 2009-09-25 | 2010-03-10 | 华为技术有限公司 | 时钟对接方法、时钟设备及时钟对接系统 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101465707B (zh) * | 2008-12-15 | 2013-03-27 | 中兴通讯股份有限公司 | 一种在同步网中保护时间传递的方法及其系统 |
-
2010
- 2010-04-26 CN CN201010159330.7A patent/CN102237996B/zh not_active Expired - Fee Related
-
2011
- 2011-04-22 WO PCT/CN2011/073194 patent/WO2011134371A1/fr active Application Filing
- 2011-04-22 BR BR112012027512A patent/BR112012027512A2/pt not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101667909A (zh) * | 2009-09-25 | 2010-03-10 | 华为技术有限公司 | 时钟对接方法、时钟设备及时钟对接系统 |
Non-Patent Citations (1)
Title |
---|
"Technical Committee on Sensor Technology(TC-9)", IEEE STANDARD FOR A PRECISION CLOCK SYNCHRONIZATION PROTOCOL FOR NETWORKED MEASUREMENT AND CONTROL SYSTEMS, 24 July 2008 (2008-07-24), pages 7, 17, 77, 172 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015078167A1 (fr) * | 2013-11-29 | 2015-06-04 | 中兴通讯股份有限公司 | Procédé et dispositif pour déterminer une source d'horloge de secours, et support d'informations |
CN103648082A (zh) * | 2013-12-06 | 2014-03-19 | 镇江市星禾物联科技有限公司 | 一种基于wifi智能定位及无线链路中的同步方法 |
US11361636B2 (en) | 2018-02-15 | 2022-06-14 | Johnson Controls Tyco IP Holdings LLP | Gunshot detection system anti-tampering protection |
US11170619B2 (en) | 2018-02-15 | 2021-11-09 | Johnson Controls Fire Protection LP | Gunshot detection system with forensic data retention, live audio monitoring, and two-way communication |
US11361638B2 (en) | 2018-02-15 | 2022-06-14 | Johnson Controls Tyco IP Holdings LLP | Gunshot detection sensors incorporated into building management devices |
US11361639B2 (en) | 2018-02-15 | 2022-06-14 | Johnson Controls Tyco IP Holdings LLP | Gunshot detection system with location tracking |
US11361637B2 (en) | 2018-02-15 | 2022-06-14 | Johnson Controls Tyco IP Holdings LLP | Gunshot detection system with ambient noise modeling and monitoring |
WO2019159099A1 (fr) * | 2018-02-15 | 2019-08-22 | Tyco Fire & Security Gmbh | Système de détection de coups de feu avec architecture de synchronisation maître-esclave |
US11468751B2 (en) | 2018-02-15 | 2022-10-11 | Johnson Controls Tyco IP Holdings LLP | Gunshot detection system with fire alarm system integration |
US11545012B2 (en) | 2018-02-15 | 2023-01-03 | Johnson Controls Fire Protection LP | Gunshot detection system with building management system integration |
US11620887B2 (en) | 2018-02-15 | 2023-04-04 | Johnson Controls Fire Protection LP | Gunshot detection system with master slave timing architecture |
US11710391B2 (en) | 2018-02-15 | 2023-07-25 | Johnson Controls Fire Protection LP | Gunshot detection system with forensic data retention, live audio monitoring, and two-way communication |
CN111163011A (zh) * | 2020-01-19 | 2020-05-15 | 烟台持久钟表有限公司 | 一种基于ptp协议的无线路由器的数据处理方法 |
CN111163011B (zh) * | 2020-01-19 | 2022-05-13 | 烟台持久钟表有限公司 | 一种基于ptp协议的无线路由器的数据处理方法 |
Also Published As
Publication number | Publication date |
---|---|
BR112012027512A2 (pt) | 2017-08-08 |
CN102237996B (zh) | 2014-03-19 |
CN102237996A (zh) | 2011-11-09 |
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