Title:
TIME SYNCHRONIZATION METHOD FOR REAL-TIME DYNAMIC TRACKING
Document Type and Number:
WIPO Patent Application WO/2022/041726
Kind Code:
A1
Abstract:
A time synchronization method for real-time dynamic tracking, which belongs to the field of computer application, relates to a sampled data synchronization method, in particular to a method for time synchronization between master and slave devices for real-time dynamic tracking, and is applied to a transient recording type fault indicator. The method comprises: a time synchronization master station broadcasting a time synchronization command every T milliseconds, the time synchronization command containing the current timestamp; a slave device receiving the time synchronization command; according to the interval between successively received timestamps and a local time interval, calculating the difference between the two intervals; and adjusting the count value in a local timer accordingly, so as to achieve the aim of time synchronization for real-time dynamic tracking. By means of the solution provided in the present invention, by taking a timestamp in a received time synchronization command as a reference, the oscillation count of a crystal oscillator within a certain time period is adjusted, and a local clock is finely adjusted to synchronize with a host, such that clock synchronization of multiple slave devices is realized, and the time difference between the slave devices is within ±2 microseconds.
Inventors:
WU NALEI (CN)
XU SHAOXIONG (CN)
WANG QIANG (CN)
ZHAI ZHIGUO (CN)
WANG LIN (CN)
LIU HAITAO (CN)
JIA HAIXU (CN)
LI YINGCHUN (CN)
ZHANG CHUNHAO (CN)
HU JINLU (CN)
AN ZHIGUO (CN)
WANG PENG (CN)
WANG ZHIHUI (CN)
XIN HAIBIN (CN)
LIU TENGFEI (CN)
ZHAO HAO (CN)
XU SHAOXIONG (CN)
WANG QIANG (CN)
ZHAI ZHIGUO (CN)
WANG LIN (CN)
LIU HAITAO (CN)
JIA HAIXU (CN)
LI YINGCHUN (CN)
ZHANG CHUNHAO (CN)
HU JINLU (CN)
AN ZHIGUO (CN)
WANG PENG (CN)
WANG ZHIHUI (CN)
XIN HAIBIN (CN)
LIU TENGFEI (CN)
ZHAO HAO (CN)
Application Number:
PCT/CN2021/084632
Publication Date:
March 03, 2022
Filing Date:
March 31, 2021
Export Citation:
Assignee:
SHIJIAZHUANG KE ELEC CO LTD (CN)
International Classes:
H04J3/06
Foreign References:
| CN112003668A | 2020-11-27 | |||
| CN109392074A | 2019-02-26 | |||
| CN110661609A | 2020-01-07 | |||
| CN102013970A | 2011-04-13 | |||
| US20100058096A1 | 2010-03-04 |
Attorney, Agent or Firm:
SHIJIAZHUANG, ZHONGZHIHUAQING, INTELLECTUAL PROPERTY FIRM (SPECIAL GENERAL PARTN) (CN)
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