发明名称 |
Method for providing synchronization in a data acquisition system |
摘要 |
It is proposed a method for providing synchronization in a data acquisition system including a plurality of acquisition units. A given acquisition unit of the plurality carries out the following steps: receiving a packet from another device of the data acquisition system; extracting a synchronization accuracy information and a reference clock information from the received packet; obtaining a first reference clock as a function of the extracted reference clock information; if the extracted synchronization accuracy information indicates a better synchronization accuracy than a current synchronization accuracy information associated to the given acquisition unit: taking the obtained first reference clock as a selected reference clock and updating the current synchronization accuracy information to indicate a lower synchronization accuracy than the extracted synchronization accuracy information. |
申请公布号 |
US9513388(B2) |
申请公布日期 |
2016.12.06 |
申请号 |
US201414333118 |
申请日期 |
2014.07.16 |
申请人 |
SERCEL |
发明人 |
Guichard Florent;Housin Gwenael;Lostanlen-Nouy Sophie;Le Moine Fabien |
分类号 |
E21B47/14;G01V1/22;G01V1/26 |
主分类号 |
E21B47/14 |
代理机构 |
Westman, Champlin & Koehler, P.A. |
代理人 |
Brush David D.;Westman, Champlin & Koehler, P.A. |
主权项 |
1. A method for providing synchronization in a data acquisition system comprising a plurality of acquisition units, wherein a given acquisition unit of said plurality carries out the following steps:
receiving a packet from another device of the data acquisition system; extracting a synchronization accuracy information and a reference clock information from the received packet; obtaining a first reference clock as a function of the extracted reference clock information; if the extracted synchronization accuracy information indicates a better synchronization accuracy than a current synchronization accuracy information associated to said given acquisition unit: taking the obtained first reference clock as a selected reference clock; and updating the current synchronization accuracy information to indicate a lower synchronization accuracy than the extracted synchronization accuracy information; and inserting in any packet to be transmitted the updated current synchronization accuracy information and a reference clock information relating to the selected reference clock. |
地址 |
Carquefou FR |