【摘要】 心电信号数据的实时高速采集是体表标测系统中关键技术之一。该文提出了 12 8通道高性能体表标测系统中心电信号数据采集的VxD算法 ,在Win9x系统下利用VxD技术、锁定内存技术和临界资源互斥访问算法相结合 ,实现了心电数据高速实时采集。该软件充分利用了硬件的等待时间 ,具有实时性高 ,运行速度快占内存少的特点。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 is concise and efficient. This software fully takes advantage of the idle time which the hardware platform brings about and a high real-time performance has been achived.更多还原