Research On Embedded Internet Technology Based On UClinux

With the rapid development of computer technology, embedded system is more and more widely used. By now, embedded computer system is much more than common computer in quantity, there are about 5 —10 microprocessor in the peripheral quipment of a computer. At the mean time, lots of network equipments become the new application environment of embedded system since the progressively development of network technology. Ethernet-based telecontrol is a necessary trend in control field. And embedded Internet is a key problem in it. In recent years, embedded system has been widely used and computer network technology has developed a lot. With this trend, embedded Internet booms up. Embedded system, such as industry devices, information household appliances and personal communication products, will become more intelligent and need to connect to Internet. This demands more and more non-network equipments to connect to Internet. Through Web browser users can at any time or at any place control on-the-spot data and equipments. Embedded Internet is this kind of technology of making embedded equipment insert Internet.This text regards the power supply supervise and control system item as background and regards the core of the system-control board as platform and study thoroughly the technology of making embedded equipment insert Internet to realize the long range control of this system. In this paper, we introduce an excellent operating system-uClinux, which has an outstanding network performance. And we put up a developing and compilation environment on a host computer for it. Then we introduce how to compile a kernel. The microprocessor we use is S3c44B0X. As for the hardwire on the control board, we mainly recommend the Flash, SDRAM, Ethernet port. In the net technology, we introduce the TCP/IP and HTTP protocols, which are the basic protocols for network communication. Then we introduce embedded socket programming and embedded Web server, and build a Web server. Finally We studied this Web server's application in the supervise and control system. Take this as an example inquiry into how to realize long range control by Internet.