Interchangeable Virtual Instrument In The Dynamic Signal Analysis System

With the development of several ten years, the theory of Virtual Instrument is continually developed, and its application is continually enlarged. It not only is applied to the fields of military and civil, but also affects modern measurement deeply. VXIbus instrument module is the delegate of Virtual Instrument. Its measure speed is advanced greatly, so it can better fulfill the require of measure real time.In the paper, dynamic signal process system based on IVI (Interchangeable Virtual Instrument) is designed. The driver of high speed synchro data acquisition device is exploited, it accords with VXI plug&play criterion and IVI criterion. Based on these, dynamic signal process system is exploited. The main works of this paper are followed:1. Known well VXIbus criterion, the structure of configure register and VXI address mapped theory. Known well the structure and work theory of high speed synchro data acquisition device.2. Known well VPP criterion VISA (Virtual Instrument Soft Architecture) criterion and IVI criterion.3. Design the driver of high speed synchro data acquisition device based on its work theory and work mode. It must accord with VPP and IVI, so it can be provided with the functions of IVI.4. Dynamic signal process system is made up of system self test module system control module the general signal process auto generate report module diagnose and error process module. The general signal process completes FFT number filter and correlation operation to data which are sampled by data acquisition device, then these data processed is generated report through auto generate report module.