Embedded Network Monitoring Systems Research And Design

In recent years, embedded systems are widely used in daily life. With the development of technology and practical application demand, more and more embedded applications demonstrate that it' s necessary to realize Internet connectivity between embedded system and Internet. But it' s difficult to embed the complicated TCP/IP protocol stack into embedded system because of its limited resource, especially in 8bit systems.According to practical project demand, putting forward a method which enable 8bit embedded system connect to Internet. With this method, An embedded UPS/EPS remote network monitor system was designed. It is realized by embedding a network board into traditional UPS or EPS. The network board supplies UPS an Interface to Ethernet, this can make UPS or EPS connect to Internet. The paper describes how to design the system in detail, which includes network board hardware design, embedded TCP/IP protocol stack design, the whole software realization of network board and two WINDOWS platform software (network monitor software and parameter setup software). The network board hardware design and embedded TCP/IP realization is the core part of this system, the paper describes these two parts as focus, the realized embedded TCP/IP protocol stack includes 802.3 Ethernet protocol, IP, ICMP, ARP, UDP, TCP. At the same time the communication realization between embedded TCP/IP and network monitor software is critical too in the system, it is described in detail too. Finally the paper describes the debug and test result of the whole system. The system passed product appraisal one time by QingDao GOMA Co. Ltd. Now it has been widely produced. All these illustrated the method of embedded Internet is feasible and has good application foreground.