基于達芬奇平臺的用戶圖形界面設計

電氣自動化論文編號:ZD1010    論文字數:17317,頁數:40

 目錄                  

摘   要 II
Abstract III
1 緒論 1
1.1  研究背景和現狀 1
 1.1.1 多媒體視頻監控 1
 1.1.2  TI davinci的誕生 1
 1.1.3 DVR及其市場分析 2
1.2  主要研究內容 4
2 系統分析與初步設計 5
2.1 基本技術原理 5
 2.1.1 OSD技術概述 5
 2.1.2 關于嵌入式系統和嵌入式linux 6
 2.1.3 關于FrameBufffer 7
2.2 Davinci DM6446開發平臺簡介 8
 2.2.1 特點和體系結構 8
 2.2.2 DM6446 OSD 11
 2.2.3 davinci API界面部分簡介 13
2.3 以用戶為中心建立系統模型 15
 2.3.1 設計應遵循的原則 15
 2.3.2  確定產品需求分析 17
2.4應用程序總體方案概述 20
3  功能設計與實現 21
3.1界面的設計與實現 21
3.2目錄文件及日期時間等顯示功能的實現 24
3.3模擬鍵盤輸入的實現 25
3.4進程間通信的實現 25
4  軟件交互設計 30
4.1 主程序的流程設計 30
4.2主程序的架構實現 31
5 總結 33
致謝 35
參考文獻 36

摘  要
 在以計算機、網絡為特征的信息技術飛速發展的時代,數字技術產品已成為時代的主流產品,數字視頻技術無疑將重塑整個電子行業的面貌。當然數字視頻技術也正在使我們的視頻體驗、傳輸以及交互方式發生深刻的變化。其已經開始進入我們的汽車、計算機、移動電話以及網絡。不過帶來高品質的享受僅是精彩的開始。橫亙在許多工程師面前的主要障礙是缺少具有性能足夠多、成本足夠低，靈活性足夠高、唾手可得的數字視頻開發平臺。而利用德州儀器(TI)的達芬奇(DaVinci)技術一切難題皆可迎刃而解!達芬奇技術使開發人員能夠對有關組件進行靈活組合，快速推出經過量產測試的高性能設計，而無需費力地了解視頻實施細節，無需煩勞做那些無用的重復開發，創新才會成為可能。芬奇技術將用于各種應用中，如IP視頻電話、機頂盒、數字媒體播放器、視頻監控設備等。本文以應用在安防領域的DVR為例研究davinci平臺下設計應用軟件界面的方法。

關鍵詞：達芬奇; 數字視頻技術; 圖片OSD; 界面設計; 交互設計; UNIX域套接字；

Abstract                            
 With the rapid development of information technology characterized computer and network, digital technology products have become the mainstream of the times ,and the digital video technology will undoubtedly reshape the face of the entire electronics industry
 Of course, electronics digital video technology is enabling us to experience the video transmission and interactive profound changes. It have begun to enter their car, computer, mobile phone and network. But the enjoyment of high quality is only the beginning of exciting. Lie in in front of many engineers about the main obstacles is the lack of enough with the performance, cheap enough, flexibility, high enough to reach the digital video development platform. And Texas Instruments (TI) DaVinci (DaVinci) technology make it to become true! DaVinci technology enables developers to make use of components  flexibly , achieving introduction of rapid mass production of high-performance test design without having to understand the implementation details of the video and do those useless duplication of development efforts, innovation will be possible.Davinci technology will be used for a wide range of productions, such as IP video phones, set-top boxes, digital media players, video surveillance equipment, etc. In this article we used in the field of security DVR as an example to study software interface design approach.

Keywords：DaVinci; digital video technology ；picture OSD; interface design; interactive design; UNIX Domain Socket IPC；