医疗设备的小型化、智能化是医疗现代化的重要标志.医疗设备应具有高可靠性、小型化和便携性等特性.综合运用传感器检测技术、NI myDAQ和LabVIEW技术,设计了基于LabVIEW和NI myDAQ的智能心率仪.利用NI myDAQ处理脉搏传感器,采集所测量的心跳参数;通过USB总线,将数据传输给计算机;由LabVIEW对心电图(ECG)信号进行分析、显示、存储和计算;编写实时显示的人机交互界面(HMI),实现对心率实时显示以及对硬件设备的功能性操作.同时,将数据以技术数据管理流(TDMS)格式保存,并利用FileView功能,对所有属性和回放数据进行浏览.测试结果表明,该系统具有较好的扩展性和兼容性,以及友好的用户操作界面,对智能便携式医疗设备领域的发展具有重大意义.%The miniaturization and intellectualization of medical equipment are important signs of the medical modernization. Medical equipment should feature high reliability,miniaturization and portability. The intelligent heart rate monitor has been designed by comprehensively utilizing the sensor monitoring technology,NI myDAQ and LabVIEW technology. Heartbeat parameters measured and collected through the pulse sensors are processed by using NI myDAQ,and then the data are transmitted to the PC via USB bus. The electrocardiogram(ECG) signals are analyzed,displayed,stored and heart rate calculated by LabVIEW.The real time display human machine interaction(HMI) is written for realizing heart rate real time display and the functional operation of hardware.In addition,the data are stored by using technical data management streaming(TDMS) format, and enables it to view all properties and playback data by using FileView function.Experimental results show that the proposed system supports scalability and compatibility,and provides a good user operation interface. It has the vital significance to the development of intelligent portable medical equipment.
展开▼
