The Research Of Embedded-System Connecting To Internet

With the times development, a burgeoning electronic application system, embedded system, is being attached more and more importance, for its obviously little volume, low price, and excellent special performance. Today's another main trend is information sharing. How to combine these two technologies has been a focus in today's information field.The actuality of network information sharing in both computer application field and electronic application field is compared in this paper. Aiming at the scarcity, the requirement and the expectation, a measure to improve the ability of network information sharing in electronic application field is put forward, which is connecting embedded system to Internet. After showing the main structure of embedded system and the definition of Internet, the possibility, realization measures and key problems of this assumption are also discussed in this paper. Considering the reality, the similarity, the advantages and disadvantages of all measures, a design plan of connecting embedded system to Internet through Ethernet is put forwarded at last.Network communication system is designed according to the OSI network model. In this paper OSI network model's layers and each layer's protocols have beenembedded system and long-distance supervising computer system, is showed in this paper. Especially for the embedded system's software part, the proper filtration of TCP/IP protocol family, the curtailment of each absolutely necessarily protocol and some special disposal (such as routing problem, the role of embedded system in network etc.) are all be discussed in detail.In the last part, the whole system's running result is showed graphically. And the whole network communication procedures are checked by Sniffer, a 3rd part network data catching software.