摘要
为了保证航天系统内时间的准确性和一致性,设计一种基于网络时间协议(network time protoco,NTP)的航天测控网络对时系统。针对各系统设备对时间的精确性和可靠性要求,在分析NTP基本原理和工作模式的基础上,建立了航天测控网络上的NTP对时系统架构,根据具体应用编程实现了NTP网络对时系统,并对该系统是否满足航天测控网络对时间精度的要求进行验证。实践结果证明:该系统能把全网中的用户设备时间偏差精度控制在1 ms以内,实现高精度的对时。
To ensure the accuracy and consistency of time system within space tracking and control network, design a space tracking and control network time synchronization system based on network time protocol （NTP）. According to time accuracy and reliability requirement of system equipment, based on analyzing NTP basic theory and work mode, establish NTP network time synchronization system for space tracking and control. Then, realize NTP time synchronization system by application programming. Verify whether the system meet the time accuracy requirement of space tracking and control network or not. The result indicates that the system controls the time deviation precision in 1 ms and realizes high precision time synchronization.
出处
《兵工自动化》
2014年第11期56-58,共3页
Ordnance Industry Automation
关键词
NTP协议
时间同步
航天测控网
NTP protocol
time synchronization
space tracking and control network
