基于Linux的嵌入式Internet應用

電子通信論文編號:TX258  論文字數:13202,頁數:34 有開題報告，任務書，程序源碼

目       錄

1 緒論 1
1.1 課題背景及目的 1
1.2 研究現狀 1
1.3 論文構成 2
2 實驗模型 4
2.1 模型簡介 4
2.2 模型搭建平臺 4
2.2.1 硬件平臺 4
2.2.2 操作系統 8
2.2.3 開發工具及開發環境 8
3 嵌入式設備網關設計與實現 10
3.1 嵌入式設備網關設計方案 10
3.2 嵌入式設備網關實現 10
3.2.1操作系統的移植和配置 10
3.2.2 嵌入式Internet網絡技術 12
3.2.3 Linux下CAN驅動的實現 15
3.2.4數據的轉換和封裝發送 22
4 模擬測試 24
4.1 測試環境 24
4.2智能設備程序實現 24
結論 26
致謝 28
參考文獻 29

摘    要

 隨著計算機技術的發展，嵌入式系統也越來越廣泛的被應用于工業控制，信息家電和個人通信設備等方面。如果能把嵌入式終端像PC一樣接入Internet，就可以方便、低廉的對嵌入式設備進行訪問和控制。但是由于嵌入式設備的資源有限，如何利用有限的資源處理好復雜的Internet協議如TCP/IP就成為嵌入式Internet的一大難題。尤其對于已經部署使用的嵌入式設備而言，如果希望能夠將它們接入Internet，選擇重新對其進行開發設計的代價是巨大的。
 本文就是以上述內容為背景，為現有的嵌入式設備如何接入Internet提出了一個模型，研究了如何通過個人計算機經由局域網訪問通過CAN現場總線連接的嵌入式設備網絡，控制網絡中的節點設備，模擬實現Internet范圍上的設備遠程管理和控制，為嵌入式Internet在現有設備中的應用提出并實現了一種解決方案，即在現有的CAN總線網絡上面掛載一個TCP/IP協議網關，通過此網關實現現有嵌入式設備和Internet網絡的直接數據傳輸。這種解決方案在滿足將現有的嵌入式設備接入Internet的同時，降低了開發和部署的成本，具有良好的應用前景。
 本文使用基于S3C2410X ARM微處理器的JXARM9－2410 ARM嵌入式教學實驗系統作為嵌入式設備硬件平臺，采用Linux作為嵌入式設備的操作系統，來實現上述網關系統。

關鍵詞：嵌入式Internet，Linux，CAN總線
 
 
 
 
Application of Embedded Internet based on Linux

Abstract

 With the development of computer technology, embedded systems are increasingly being used in a wide range area, such as industrial control, information appliance and personal communication equipment. If accessing or controling the embedded devices on the Internet like PC, it would be convenient and low-cost. However, because of the limited resources, it has been a big problem for embedded Internet that how to use the resources to implement the complex protocols such as TCP/IP. Especially for devices that have been deployed, choosing to re-design will cost a lot.
 Based on the above, this paper proposed a model trying to solve the problem that how embedded devices connect to the Internet, and made a research on how to access and control the CAN devices which connected with CAN-bus through LAN. The solution is mounting a TCP/IP gateway on the CAN network. It not only satisfied the demand that connecting the device to the Internet, but also reduced the cost.
 The dissertation will realize the system which consists of S3C2410X as MCU, Linux as OS, and campus network as the Internet.

Key Words: Embedded Internet, Linux, CAN-bus