Study Of The Realization Of Embedded Web Server And Network Communication

As the fast development and application of the computer network technique, network has affected the industry application area gradually. It becomes a requirement to do supervisory control for the industry device via network. And now embedded system has been used more and more widely in the industry control area. For this trend, we realize a network supervisory control and data acquisition system for the industry control application, using the widely spread network-Internet. The system makes the embedded system a web server and making it accessing the Internet directly. A conjunction of the Browser/Server and Client/Server architecture is selected for this system.The paper firstly describes the theory of embedded system, Embedded Operating System uClinux and its application developing technique, embedded Web Server and its CGI technology, Winsock and database programming techniques. Based on these theories, a network supervisory control system for the industry control is realized. The supervisory and control system is realized on a hardware platform supporting Ethernet and with processor of ARM7TDMI kernel. In this system, an embedded web server system can be controlled by browsers distributed in different areas, many embedded web server system can be controlled almost concurrently by a simpleclient.The system realized features in low cost and high performance, so it can be believed to have a bright future.