The Design Of Virtual Instrument ECG

Virtual medical instrument is based on computer software and hardware combination of medical instruments, it is with the computer technology, the development of modern medical measurement technology developed a new type of high-tech products, medical equipment represents the latest development of today's trends.Based on the ECG machine at home and abroad of virtual instrument technology development status and trends analysis to understand these two aspects, according to the characteristics of modern virtual medical instrument, developed based on the Lab-VIEW platform for virtual ECG system.Firstly, according to the characteristics of the ECG signal acquisition hardware platform. These include the right leg drive circuit design, ECG signal amplification, filtering three parts. ECG pre-amplifier circuit is divided into grade levels, amplification and post amplification stage amplifier circuit. Filter circuit low pass filter, respectively,50Hz notch filter and four-order Butterworth filter.Then, the ECG data acquisition card will be collected to the computer, computer-based Lab-VIEW software on the ECG waveform display, heart rate monitoring and the results of storage and a series of graphic design, while in the case of abnormal heart rate Automatic alarm sounds, Therefore, managers can be measured by real-time monitoring of heart rate changes in circumstances, and can make timely diagnosis.Finally, based on the current network communication system to achieve remote viewing, subjects with ECG monitoring the situation. This is implemented through shared variables in the LAN data transmission technology via Datasocket remote data acquisition and transmission and the use of Web servers for remote users through the web browser monitoring. Eventually form a simple, vivid image of the virtual interface ECG Test System.