Industrial Ethernet Real-time Study And Site Monitoring And Control Applications

After 1990s, information industry and data trafic network have greatlymushroomed and influenced industrial automation. New type industrial networks such as DCS, Fieldbus and Industrial Ethernet have brought a high-level revolution in industrial automation. However because of the disunion of the international standards of Fieldbus and indirect interconnection and interoperation between different kinds of Fieldbus products, the openness of Fieldbus can not be achieved easily.With the rapid development of information technology, the ability of seamless integration between management layer and field control layer is required as well as an open infrastructureby enterprises and consumers. Traditional Ethernet has gradually entered the industrial control field in the same time.According to the requirement of industrial network, the scheduling of real-time trafic, Network management, control strategy and test method of Industrial Ethernet were discussed combining traditional Ethernet technology and switching technology in this thesis. We analyzed the analyzed the redundancy design and provided the ideal system design of Industrial Ethernet. The main content of this thesis is listed as follows:l:Firstly, we make an overview the history and the latest achievement of industrial network and compare Industrial Ethernet with DCS and Fieldbus. 2: Introduced the history and the development of Industrial Ethernet. We make a discussion on advantages and problems of Industrial Ethernet and pointed out the direction of research for this thesis.3. To the non-deterministic of traditional Ethernet, we studied the technologies such as full-duplex switched Ethernet network, VLAN, and IPv6 technology in detail, which are used to realize the ability of real-time of Industrial Ethernet. 4:we discussed the patern design of Industrial Ethernet, provided the ideal system design of Industrial Ethernet and pointed out the new direction-hybridsystem of Industrial Ethernet in the future. And analyzed the redundancy design of the core layer and the distributing layer of Industrial Ethernet 5: Lastly,We studied the control strategy of Ethernet in-depth and designed specific example of network configuration; then we emulated the example on simulation software and analyzed the results of emulation in detail.Finally, we drew a conclusion and propose the future research directions.We believe that Industrial Ethernet will have a bright future of application in industrial control field. There are still some key problems needed to resolve. Positive.study would be helpful to push Industrial Ethernet forward in application.