基于BDS用户终端的局域网授时方法

The method of local area network timing based on BDS user terminal

针对局域网时间授时应用需求,设计了一种基于北斗卫星导航系统(BDS)用户终端的局域网授时方案.通过软件研制,将用户终端的UTC时间导入到局域网计算机,作为局域网参考时间源,再利用网络授时软件进行网络授时,实现局域网UTC时间统一.试验结果表明,基于BDS用户终端的UTC时间引接精度可达200 ms,网络授时精度优于500 ms.

Based on application requirements of Local Area Network(LAN)timing,a scheme is designed based on BeiDou Navigation Satellite System(BDS)user terminal.With developed software,the UTC time is imported from the user terminal to LAN as a local reference time source.Then the UTC time of local equipment are unified by a LAN timing software.The test results show that the UTC timing accuracy can reach 200 ms,and the network timing accuracy is better than 500 ms.