Title:
METHOD FOR GLOBAL TIME SYNCHRONIZATION BY COMBINING DATA PACKET AND SHORT PULSE
Document Type and Number:
WIPO Patent Application WO/2021/147502
Kind Code:
A1
Abstract:
Provided is an algorithm for hardware global time synchronization by combining a short pulse and a data packet, which algorithm can reduce a data transmission amount. Mainly by means of a master device sending a short pulse to a slave device every time a first time interval (for example, 1 mS) elapses, such that the slave device adjusts a clock count value thereof according to the first time interval, and the master device sending a clock count data packet to the slave device every time a second time interval (for example, 10 mS) elapses, such that the slave device loads a clock count value of the master device from the clock count data packet, such that global time synchronization is completed. In addition, in the present invention, when a static shock or another abnormality occurs in the master device or the slave device, a clock count value thereof can still be automatically recovered. After the present invention is implemented according thereto, a data transmission amount between a master device and a slave device during global time synchronization can be reduced since a clock count data packet does not need to be sent every time, such that communication power consumption required by time synchronization of a digital hardware system can be reduced.
Inventors:
WANG FEI (CN)
Application Number:
PCT/CN2020/131024
Publication Date:
July 29, 2021
Filing Date:
November 24, 2020
Export Citation:
Assignee:
NANJING SENSCOPIC TECH CO LTD (CN)
International Classes:
H04L7/00; H04J3/06
Foreign References:
| CN110120846A | 2019-08-13 | |||
| CN102882669A | 2013-01-16 | |||
| CN109687927A | 2019-04-26 | |||
| CN109286459A | 2019-01-29 | |||
| US20120050100A1 | 2012-03-01 | |||
| US20190020432A1 | 2019-01-17 |
Attorney, Agent or Firm:
NANJING CIPIC INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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