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Design and Implementation of Embedded WEB Server

Author: RenZuoWei
Tutor: SunXianSong; XueWen
School: Yangtze University
Course: Electronics and Communication Engineering
Keywords: embedded WEB server embedded system ARM linux boa
CLC: TP316.81
Type: Master's thesis
Year: 2013
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Abstract

Embedded the concept is not new to appear, From seventy s of the20th century the emergence of the single-chip microcomputer to today, all kinds of embedded microcontroller processor, the large-scale application of microcontroller, embedded system has a history of nearly three decades of development.Embedded system was born in the era of micro machine. Embedded nature of embedded system is embedded a computer system into an object of the system,These are the basic for understanding the embedded system. Because the embedded computer system to be embedded into the object system, realizes the intelligent control of objects, therefore it is a development of technical requirements completely different from the general computer systems and technology.General requirements for computer systems technology is the numerical computation of high speed, mass; the direction of technology development is unlimited upgrade the bus speed, the unlimited expansion of storage capacity.But The technical requirements of the embedded computer system is the object of intelligent control; technology development is the embedding performance, reliability control and control is closely associated with the object system.The embedded computer system on a completely different path, the independent development of the road is the road of single chip. It mobilized the original manufacturer and professional in the field of traditional electronic system, took the originated in the computer in the field of embedded system, to undertake the historical mission of development and popularization of embedded system, the rapid development of the traditional electronic system to intelligent modern electronic system.In recent years, the Internet has entered a stage of rapid development, more and more personal computer through the Internet to achieve the interconnection. Embedded systems and equipment as an important part of computer science, has the advantages of high performance, low power consumption and small size and other characteristics, is widely used in industrial control and intelligent home furnishing etc.. Then people combined Internet and embedded system, the embedded equipment through the network access LAN or the Internet, in order to realize the remote management and monitoring. In this way, the embedded WEB server will emerge as the times require--it is the product of the combination of embedded technology and network technology.The traditional WEB server is mainly used for processing a large number of client access, the processor can have very high demand, and memory space, therefore, the general Internet sites use WEB server powerful. But for a small application system or in the general management information system, the required WEB server function is relatively simple, if still using large-scale general WEB server, it will cause the waste of resources. So should choose a relatively simple function, small size, less resource consumption of the simple WEB server.This paper firstly in the first chapter describes the background and significance of the subject, the definition and composition of the embedded system, and then describes the characteristics of embedded system, analysis of the embedded system and embedded WEB server technology and the current development situation, and the research situation at home and abroad.Then in the second chapter describes the establishment of the system hardware, the ARM11processor is introduced briefly, and then introduces the design of hardware platform, including the overall structure, the device selection, the introduction of S3C6410processor, the basic configuration of core board Tiny6410development board, and the bottom plate of the interface of Tiny6410SDK resources.In the third chapter is mainly about the construction of system software platform, the embedded operating system commonly used are analyzed and compared, using the Linux operating system. First make a brief introduction of the embedded Linux system, introduces its main characteristics, because of embedded Linux system with a wide range of hardware support, the kernel is stable and efficient, open source software, rich, and has a perfect network and file management mechanism, which is the Linux as the embedded operating system advantage.And then discusses how to build software platform, the main processes include building the cross development environment, porting BootLoader, Linux kernel transplantation, the establishment of the root file system, porting and testing YAFFS.To make the protocol based on embedded WEB server is introduced in the fourth chapter. Since the construction of WEB server, it will relate to the TCP/IP protocol, HTTP protocol and to comply with the specifications and requirements. Then introduces the principle of CGI and its design.In the fifth chapter, some technologies of embedded WEB server implementation are discussed, the design scheme of embedded WEB server. After a further description of the boa process and the method of transplantation. Finally, it is described how to use the WEB remote browsing and control camera.In the last chapter, the sixth chapter of this thesis are summarized, and the future development prospects of embedded WEB server.

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