Building Embedded Web Server, Based On Ethernet And Internet Technologies

Ethernet, being a most extensively used LAN at present by conduct, is getting more and more application at industrial automation and process control field. Besides, with the popularization of Internet, the progress of modern communication technology, the distribution type built up on the basis of TCP/IP and Client/Server controls technology is maturing day by day. Through Ethernet and Internet technology, after connecting the embedded system to Internet, we can conveniently, cheaply transfer the information to any place of the world.This embedded WEB server that subject studies starts with realizing schemes directly, namely adopt the single-chip system of 51 processors directly. Transferring the having acquired data through TLC2543 A/D chip onto Ethernet or ADSL dedicated line, make customer have a look around through the browser, look over the situation of acquisition, and then control the one-chip computer through the order menu or button on the web page. This subject includes several following content of respects. Firstly, the interface of single-chip and network-card. The function of receiving and sending the data of network-card has been realized. Secondly, has simplified huge, complicated TCP/IP protocol stack; make it become a non-need too heavy procedures store space, suitable for embedded WEB server protocols. Finally, has realized the function of WEB server and accessing Internet through ADSL dedicated line. Customer can visit the server conveniently through IE browser but not make up by oneself upper machine software, and can conveniently, swiftly look over the single-chip system function situation and send out corresponding control instructions, really achieve the goal of monitoring and control long-distantly.This WEB server system can nearly be applied to all the occasion that is not strict to real-time. So long as do some modification or improves to the relevant part of this system, such as the visit authority of the customer end, filtration of IP address, etc., it can apply to be such as long-distantly recording meter, the long-distantly controlling of information household appliances etc.