Windows系统中基于GPS的对时方法的研究

目前各种控制系统中,通常采用广播校时的方式,对同一网络内的计算机进行时间同步。由于传播过程中的网络延时、网络传输速度等原因,采用这种方式的校时精度很难得到保证。针对这种情况,提出了一种基于GPS全球定位系统的校时方法,采用了精粗组合的手段提高了校时的精度。实验结果表明,该方法校时精度较高,具有一定的实用性。

The Study of Time Synchronization Method with GPS in Windows System

At present in control systems, it is usual to broadcast time for synchronizing computers in the local network. Because ofnetwork time delay, network transmission speed and so forth, the timing precision is difficult to obtain. We develop a method for timesynchronization based on the GPS, which uses "combine fine and coarse" method to increase the timing precision. The experimentalresult indicates that this method is of high precision and has the practicality.