【摘要】 提出了如何将VxD技术应用于心电信号的高速实时采集中，并结合VxD技术、锁定内存技术和临界资源互斥访问算法，实现了心电数据高速实时采集。该方法充分利用了硬件的等待时间，具有实时性高、运行速度快和占内存少的特点。更多还原

【Abstract】 The acquisition of electrocardiological signal is one of the key technologies in body surface potential acquisition system. On the hardware platform of the 128-channel body surface potential acquisition system, this article puts forward an algorithm of electrocardiological signal acquisition in Win9x system. In the implementation, VxD and lock-memory technologies are used, and also an algorithm to access critical resource is introduced. The result shows this algorithm to be concise and efficient. This software fully takes advantage of the idle time which the hardware platform brings about and a high real-time performance is achieved.更多还原