互联网上计算机时间传递系统设计方案及实验结果分析

计算机互联网的发展，使信息的传递更加方便、快捷。在时间频率用户中，中、低准确度的用户占很大比例，计算机互联网时间传递已经成为一个重要的手段。中国的网络授时系统从２０００年１月开通以来，近万人访问了授时网站ｈｔｔｐ：／／ｋｘｚｈ．ｓｘｓｏ．ａｃ．ｃｎ或其镜像站点ｈｔｔｐ：／／Ｂｅｉｊｉｎｇｔｉｍｅ．１２６．ｃｏｍ。介绍了国家授时中心网络授时系统的设计要点，给出了网络授时传递时间准确度的测量方法，分析了网络授时实验结果。

A system of computer network time transfer and experiment

With the developing of Internet, information transfer is more and more convincing. Among the users of frequency and time, there are big proportion users whose need low or medium precision to transmit time by internet is a primary means. Since the opening of the net timing in China in January 2000, there are almost ten thousand people visit timeserver website. In this paper we'll simply look back the general situation of network, talk about the structure of computer clock system and error analysis, and instruct several time protocols, compiling communicative programs via network and how to realize the standard time transmission through computer network system. We also will give an instruction of network time transmission software of Shanxi Astronomical Observatory, the Chinese Academy of Sciences.