NETWORK TIME SERVICE ACCURACY CONTROL METHOD AND SYSTEM FOR SEISMIC COLLECTOR, AND TERMINAL DEVICE

WIPO Patent Application WO/2021/196923

A1

Provided in the present invention are a network time service accuracy control method and system for a seismic collector, and a terminal device. The method comprises: transferring a data packet by means of an interrupt mode; calculating an optimal network delay; and after a transfer error in a network time service process is corrected according to the optimal network delay, a physical layer of a server receiving the data packet, and sending, by means of the interrupt mode, data from the physical layer of the server to an application layer of the server to perform a time service on the data packet. According to the present application, an interrupt mode is used to transfer a data packet between a physical layer and an application layer, so that a data packet is accurately time-stamped. In addition, since the algorithm uses a symmetric algorithm mode on both a client and a server, execution errors caused thereby can be greatly reduced due to the symmetry. An error caused by a data packet transfer between a client and a server is adjusted by calculating an optimal network delay, so that a time service error is greatly reduced and the network time service accuracy is improved.

XU XIQIANG (CN)
HAO TIANYAO (CN)
XU QING (CN)
ZHANG YAN (CN)
ZHAO CHUNLEI (CN)

PCT/CN2021/077592

October 07, 2021

February 24, 2021

Click for automatic bibliography generation  

INST OF GEOLOGY AND GEOPHYSICS THE CHINESE ACADEMY OF SCIENCES (CN)

H04J3/06

CN102647269A	2012-08-22
CN109167667A	2019-01-08
CN1296189A	2001-05-23
US20140064303A1	2014-03-06
KR20170069706A	2017-06-21
CN108897210A	2018-11-27
US7535931B1	2009-05-19
CN111447030B	2021-02-19
CN111447030A	2020-07-24

SHENZHEN KEJIN INTELLECTUAL PROPERTY OFFICE (CN)

View/Download PDF      PDF Help

Previous Patent: RADIATION SHIELDING DEVICE FOR SECURITY INSPECTION DEVICE

Next Patent: APPARATUS AND METHOD FOR REMOTELY MEASURING PUPIL SIZE