用于计算机群高精度时间同步的B码终端的设计与实现

Design and Implementation of B Code Terminal for the High-precision Time Synchronization of Computer Group

介绍一种采用新技术、能在较大范围内对计算机群实现高精度时间同步的B码终端。在计算机时间同步群内,B码终端连接拓扑结构为雏菊链(Daisy Chain)方式;同步链内的第一个终端为主终端,其它均为从终端;每个B码终端具有一定精度的守时、B码编码和解码功能以及时延值调整功能,保证了在没有外部B码的情况下,同步群内计算机时间继续保持同步,同时在雏菊链较长的情况下,可对每个B码终端进行时延值调整,使每个B码终端计算机时间同步码保持高精度时间同步。

This paper introduces a novel B code terminal which can synchronize the computers＇ time accurately in a wider space. In the computer time - synchronization group, the B code terminals connection topology is the daisy - chain; the first terminal in synchronization chain is master and others are slaves, each B code terminal has B code encoding, decoding and time -delay value adjustment function, which guarantees that when the external B code is absent, the group of computers＇ time continues to keep pace; in a long daisy chain of circumstances, the delay value of each B code terminal can be adjusted, so that each B code terminal＇ s computer time synchronization code maintains high -precision time pace.