基于ARM的嵌入式遠(yuǎn)程控制系統(tǒng)的研究與應(yīng)用

電氣工程論文編號:DQ245   論文字?jǐn)?shù):17927,頁數(shù):39

摘要：計算機(jī)技術(shù)發(fā)展到今天，嵌入式系統(tǒng)的應(yīng)用越來越廣泛：嵌入式計算機(jī)在應(yīng)用數(shù)量上遠(yuǎn)遠(yuǎn)超過了各種通用計算機(jī)，一臺通用計算機(jī)的外部設(shè)備中就包含5-10個嵌入式微處理器。而隨著網(wǎng)絡(luò)技術(shù)日新月異的發(fā)展，各種網(wǎng)絡(luò)器件成為嵌入式系統(tǒng)新的應(yīng)用。微處理器產(chǎn)生后，價格低廉、結(jié)構(gòu)小巧的CPU和外設(shè)連接提供了穩(wěn)定可靠的硬件架構(gòu)。20世紀(jì)90年代，ARM32位嵌入式RISC處理器擴(kuò)展到世界范圍，占據(jù)了低功耗、低成本和高性能的嵌入式系統(tǒng)應(yīng)用領(lǐng)域的領(lǐng)先地位。
 Linux因其可應(yīng)用于多種硬件平臺；是免費軟件，源代碼可以得到；微內(nèi)核，本身內(nèi)置網(wǎng)絡(luò)支持和高度模塊化等優(yōu)點，非常適合做嵌入式開發(fā)的操作系統(tǒng)。Uclinux是Linux的一個分支，是專為沒有MMU（內(nèi)存管理單元）的CPU而設(shè)計的。
 本論文主要研究了基于ARM的嵌入式Linux開發(fā)。這個研究開發(fā)是在實踐的基礎(chǔ)上完成的，設(shè)計了以三星ARM7TDMI CPU為核心的嵌入式硬件系統(tǒng)，并在此基礎(chǔ)上嵌入Uclinux操作系統(tǒng)，在uclinux系統(tǒng)上可以開發(fā)各種應(yīng)用，本文主要研究了其中一個應(yīng)用--嵌入式WEB服務(wù)器，該WEB服務(wù)器采用HTTP協(xié)議。我們已經(jīng)成功解決了ARM的開發(fā)難題，研究了ARM的開發(fā)方案，以及uclinux針對ARM的移植難題，這在嵌入式系統(tǒng)研究領(lǐng)域，有較高的實踐和研究價值。我們所研究的這個嵌入式系統(tǒng)具有低成本，高效率的特點，值得推廣。最后本論文對所做的工作地總結(jié)并展望了本嵌入式系統(tǒng)的其它應(yīng)用。
關(guān)鍵詞：嵌入式； WEB服務(wù)器； 遠(yuǎn)程控制； ARM； Internet應(yīng)用

Abstract: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 equipment 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. The cheap and powerful microprocessor and various kinds of peripheral equipments have make the hardware frames of all kinds of embedded applications stable and reliable. Since 1990s ,ARM which is 32-bit embedded RISC microprocessor,has been spread to the range of the world and occupied in the field of application of low consumption, low cost and high performance embedded system.
 Because it’s excellent kernel design and application performance, Linux is running on many kinds of hardware .Linux also owns other merits such as its free source code, its inherit networking functions and its modularization design in kernel. Therefore Linux is very suitable to be the operate system of embedded system. uClinux is a branch of embedded Linux And it is designed for NO-MMU CPU.
 In this thesis, the embedded Linux system based on ARM has been developed .The embedded hardware system was designed taking Samsung ARM7TDMI CPU as core. And a small uClinux system can be developed. This thesis introduces one application embedded web server and its protocol-HTTP. We have already solved the problem of developing ARM and rescarched the project of developing ARM.The important thing is that we successfully solved the difficultyes of porting uClinux into ARM hardware platform. This provides with a higher practice and research value in the field of studying embedded system. Our embedded system has the characters of low cost and high efficiency. At last, a sum-up and prospect of some other usage of  Linux embedded system are given.
Keywords:  Embedded； WEB servers； Remoto control；ARM；Internet  Application