Research On Application Platform Of Embedded Internet Virtual Instrument

In the measurement and control field, with the rapid development of electronictechnology, embedded technology, network technology and virtual instrumenttechnology, the instrument is developing towards micromation, networking,virtualization, digitalization and intellectualization. The pratical research on embeddedInternet virtual instrument that complied with information process becomes one of hotresearches of instrumentation. This paper presents the model of “Application Platform”which is applied to embedded Internet virtual instrument, and introduces the structure of“Application Platform” prototype device. Furthermore, the standardized design of“Application Platform” is elaborated in hardware and software respectively. Theresearch on application platform will provide a fundamental application developmentenvironment and an effective pattern for developing various kinds of embedded Internetvirtual instrument. It also makes a greate convenience for secondary development ofembedded Internet virtual instrument.The research on “Application Platform” represents a new way and technology ofembedded Internet virtual instrument. Related works are as follows:⑴Establish the concept of embedded Internet virtual instrument by using the ideaof componentization and modularity. Analyze the structure, standardized design andprototype construction of application platform in detail.⑵Develop embedded Internet virtual instrument prototype on the foundation ofapplication platform.①Hardware design of application platform. According to the model of“Application Platform”, design the hardware structure, functional components andhardware interface to compose a required hardware system.②Firmware library development of “Application Platform”. Contraposing thefeatures of embedded Internet virtual instrument, two key issues need to be resolvedwhen building MCU firmware library. The first one is to design real-time and reliabledata transmission firmware. The second is to simplify the TCP/IP stack.③Construction of embedded system for “Application Platform”. From the aspectof saving system memory and storage, customize a fast, compact and effectiveembedded system for “Application Platform”. ④Development of virtual instrument components. On the foundation of“Application Platform”, develop Windows CE-based virtual instrument components byusing LabVIEW. The design of network commucation module is analyzied in detail.