基于SmartClient模式的分布式网络化虚拟仪器系统的设计与实现-信号与信息处理专业论文.docxVIP

ABSllLACT ABSTRACT virtual Instrument Technology,all important technology in the field of Measuremem and Control systeIIL is a perfect combination of modem computer technology and equipment technology．The rapid development of fiber broadband communication technology and Internet technology promotes the process of network-based virtual instrument．ApplicatiOIlS on network．based virtual instrument have been widely used in various industries，such as telemedicine，remote data acquisition and control，real·time sharing of expensive measurement equipment resources and remote fault diagnosis． Currently,development of network-based Virtual Instrument mainly takes Client／Server(c／s1 model or Browser／Server(B／S)model．With Microsoft．NET Web Service framework Iaunthed．SmartClient Model has emerged．TIliS model integrates the advantages Of C／S model and B／S model。such觞the powerful functions．flexibility and the excellent llS敛experience for c}s applications and deployment simplicity and stability for B／S applications．SmartClient is considered to be a powerful altc：mative of B／S model． ⅢS PaDer design and implement a Distributed Network Virtual Instrument System based on SmartClient model with Visual Studio．NET 2003．Two solutions have been developed．One is a SmartClient application that is developed using C撑．NET technology, which is an information mallagement and control application．nle other is a remote control solution of Virtual Instrument develoFed by Measurment Studio，which is integrated software packages in Microsoft Visual Studio．NET． In the entire system, resource sharing and data exchange are realized by WebService technolorgY among instruments in network nodes．Real—time data transmission and control is achieyed by DataSocket components techn0109y．Data acquisition for USB．6009 card is achieved by using NI-DAQmx components technology．Online and offiine data analysis iS achieved by modules developed based on the functions provided by Measurment Studio． Testing resultS sh