System and method for precise timing and data synchronization

The invention relates to a system for precise timing and data synchronization. The system is composed of a simulation computer, a main console, and other simulation nodes. In addition, the invention also relates to a method for precise timing and data synchronization. The method comprises: the main console inquires a reading-writing flag bit in memory mapping of the simulation computer; data mapping is carried out; a position 0 is marked; and an interruption program is performed and whether time is exceeded is determined. With the system and method provided by the invention, high-precision timing is realized; the real-time performance of the simulation system is realized; and the synchronization of data communication is ensured. 本发明涉及种精确定时及数据同步的系统，包括仿真计算机、总控制台及其它仿真节点；还涉及种精确定时及数据同步的方法，包括在1ms帧周期内，总控制台首先查询仿真计算机内存映射中的读写标志位；数据映射；标志位置0；执行中断程序、判断是否超时的步骤。本发明的系统及方法，能够实现高精度定时，很好解决了仿真系统的实时性，保证了数据通信的同步。