基于RTX和双进程共享内存的实时检测系统设计

Design and Realization of Real-time Test System Based on RTX and Double Thread Shared Memory

针对Windows系统下检测系统普遍存在的实时性问题,提出了一种基于RTX和双进程共享内存技术的实时性解决方案;系统以X86架构通用计算机为平台,采用PXI接口数据采集卡,在Windows XP操作系统下采用RTX扩展插件,设计实现了一套具有实时信号检测功能的检测系统;经测试和实际应用,该检测系统性能稳定、测量实时性可达0.01 ms。

For the real-time problem of test system in Windows OS, a kind of RTX and shared memory method has been put forward. A new real-time test system has been developed hased on X86 general computer and RTX for windows. Experiments show that, the real-time test system performance is stable and its precision of time-test arrives at 0. 01 ms.