Design Of Virtual Measurement And Control Technology Based On CPCI/PXI

With the rapid development of computer technology, network technology, virtual technology, measurement and control technology, the measurement instruments also quickly develop, various bus-based virtual measurement and control technology, which has brought considerable benefits, has applied in all kinds of industries, especially in the measurement and control in avigation.The measurement instruments are developing from the conventional instruments to the heart focus on the virtual instruments, and turning to digital, intelligentized and networked, which brought about a fundamental reformation. The efficiency, reliability, veracity and agility are smartly improved.Because of the high require of veracity and precision in the navigating system, as well as management cause, these is still no measurement and control system with high agility applied in navigate field. Based on the practical situations of navigating system, research has been done in virtual measurement and control technology.First, according to the characteristic of navigated measurement and control system, this article introduces the characteristic, excellence and application range of virtual instruments. And several interface bus are discussed, select the CPCI/PXI as the system bus flat to satisfy the demand of the airman. The constitution and network of virtual system are emphasized, and communication stipulation of an agreement about network is layout in the article.At the same time, there are some shortages in the application of the virtual instrument. That is the intelligence and multiplicity required to be enhanced; the function of instruments bus demands improvement; and big real-time virtual system await to investigate and probe into.