本文選題：監(jiān)控終端 + 第三代移動通信�。� 參考：《山東師范大學(xué)》2012年碩士論文

【摘要】：在微電子技術(shù)、計(jì)算機(jī)技術(shù)、多媒體技術(shù)和網(wǎng)絡(luò)技術(shù)的巨大推動和整個社會信息化程度提升的特殊背景下，視頻監(jiān)控獲得了極大地關(guān)注和迅猛的發(fā)展。視頻監(jiān)控的應(yīng)用范圍不再局限在一般的公共場所安全防范，企業(yè)生產(chǎn)經(jīng)營監(jiān)控、道路交通智能化管理、家庭安全監(jiān)控等新的領(lǐng)域也受到了廣泛的應(yīng)用。無線通信技術(shù)特別是第三代移動通信技術(shù)的發(fā)展更是為視頻監(jiān)控提供了更加靈活方便的組網(wǎng)方式。同時在現(xiàn)代數(shù)字信號處理技術(shù)和人工智能技術(shù)的巨大推動下，目前的監(jiān)控系統(tǒng)已經(jīng)發(fā)展到了智能化的階段。本文正是基于這種應(yīng)用背景，設(shè)計(jì)了一款基于ARM的嵌入式監(jiān)控終端。 本文所設(shè)計(jì)的監(jiān)控終端主要有以下部分組成：視頻采集模塊，視頻處理模塊，中心控制模塊，無線傳輸模塊組成。系統(tǒng)整體設(shè)計(jì)方案采用ARM與專用視頻處理芯片相結(jié)合，ARM完成網(wǎng)絡(luò)管理和進(jìn)程管理等任務(wù)，，而視頻芯片完成原始數(shù)據(jù)的H.264壓縮。監(jiān)控終端通過3G網(wǎng)絡(luò)與后臺控制中心完成數(shù)據(jù)交互，基本適應(yīng)了現(xiàn)代社會對視頻監(jiān)控的基本要求。本論文主要完成的工作和創(chuàng)新點(diǎn)如下： 1.通過對系統(tǒng)功能的分析，介紹了嵌入式視頻監(jiān)控終端整體方案的選擇，在系統(tǒng)硬件架構(gòu)選擇上采用ARM與視頻處理芯片相結(jié)合的方式，改變了傳統(tǒng)的單芯片處理數(shù)據(jù)的模式，大大提高了系統(tǒng)的性能。在編碼方式上，采用了壓縮比率更高的H.264壓縮方案，傳輸?shù)膱D像相比較以前的MPEG方案質(zhì)量更加的好，并且數(shù)據(jù)量很小，在以流量計(jì)費(fèi)的3G時代，更加凸顯了本終端的優(yōu)勢。在組網(wǎng)方式上，采用3G方式進(jìn)行組網(wǎng)，相比較以前的監(jiān)控終端，在組網(wǎng)方式上更加的靈活方便，更加容易擴(kuò)展和升級。 2.針對本文選擇的芯片，完成了采集模塊，視頻處理模塊，中央控制模塊和無線傳輸模塊以及PCI通信接口的電路設(shè)計(jì)，給出了本文所設(shè)計(jì)的監(jiān)控終端的原理圖和實(shí)物圖。并且根據(jù)以往經(jīng)驗(yàn)和本終端設(shè)計(jì)遇到的實(shí)際問題，對PCB設(shè)計(jì)中可能遇到的技術(shù)難點(diǎn)進(jìn)行了總結(jié)和歸納。 3.構(gòu)建了基于SL3512的軟件開發(fā)平臺，對主要的步驟和流程進(jìn)行了全面的闡述，在引導(dǎo)程序boot loader的選擇上，創(chuàng)新性的采用了依賴于SL3512設(shè)計(jì)的SLboot，并且對它的啟動和運(yùn)行過程進(jìn)行了細(xì)致的說明。 4.對嵌入式終端驅(qū)動程序的開發(fā)流程和基本原理進(jìn)行了全面的闡述，在一定程度上彌補(bǔ)了以前嵌入式終端設(shè)計(jì)的不足，針對本終端完成了ARM處理器與視頻視頻處理模塊通信的PCI驅(qū)動程序的開發(fā)和加載。 5.完成了基于FH8735軟件工具開發(fā)包SDK實(shí)時視頻點(diǎn)播和動態(tài)監(jiān)測等定制化模塊的開發(fā)，在一定程度上彌補(bǔ)了國內(nèi)視頻監(jiān)控終端對動態(tài)監(jiān)測和遮擋報(bào)警等重要功能的空白，基本滿足了當(dāng)代社會對嵌入式系統(tǒng)智能化的要求。對無線傳輸模塊的數(shù)據(jù)鏈路層，網(wǎng)絡(luò)層所需要的協(xié)議和基本原理進(jìn)行了深入的研究，并且給出了具體的實(shí)現(xiàn)方案，對于嵌入式系統(tǒng)的開發(fā)具有一定的指導(dǎo)意義。 6.最后對本文監(jiān)控終端所涉及的主要應(yīng)用領(lǐng)域和未來的研究方向進(jìn)行總結(jié)和展望，對進(jìn)一步需要補(bǔ)充和完善的地方進(jìn)行了說明。
[Abstract]:Under the special background of microelectronic technology, computer technology, multimedia technology and network technology and the promotion of the whole social information level, video surveillance has gained great attention and rapid development. The application scope of video surveillance is no longer limited to general public place security prevention, enterprise production and management monitoring, road The new fields such as traffic intelligent management and family safety monitoring have also been widely applied. The development of wireless communication technology, especially the third generation mobile communication technology, is more flexible and convenient for video surveillance. At the same time, the modern digital signal processing technology and artificial intelligence technology are greatly promoted. The monitoring system has developed to the intelligent stage. Based on this application background, this paper designs an embedded monitoring terminal based on ARM.
The monitoring terminal designed in this paper consists of the following parts: video acquisition module, video processing module, central control module and wireless transmission module. The overall design scheme of the system is combined with ARM and special video processing chip, ARM completes network management and process management tasks, while video chip completes the original data H.264 The data interaction between the 3G network and the backstage control center is completed by the monitoring terminal, which basically meets the basic requirements of the modern society for video monitoring. The main work and innovation of this paper are as follows:
1. through the analysis of the function of the system, the selection of the overall scheme of the embedded video monitoring terminal is introduced. In the selection of the system hardware architecture, the mode of combining the ARM with the video processing chip is adopted to change the traditional single chip processing data mode, which greatly improves the system's ability. In the coding mode, the compression ratio is higher. H.264 compression scheme, compared with the previous MPEG scheme, the quality of the previous scheme is better, and the amount of data is very small. In the 3G age of traffic charging, the advantage of this terminal is more prominent. In the networking mode, the network is organized by the way of 3G, compared with the previous monitoring terminal, it is more flexible, convenient and easier to expand in the networking mode. Exhibition and upgrade.
2. for the chip selected in this paper, the design of the acquisition module, video processing module, the central control module, the wireless transmission module and the PCI communication interface are completed. The schematic diagram and the physical map of the monitoring terminal designed in this paper are given. And according to the previous experience and the actual problems encountered in the design of the terminal, it is possible to meet the PCB design. The technical difficulties are summarized and summarized.
3. the software development platform based on SL3512 is constructed, and the main steps and processes are fully expounded. In the selection of boot loader of the guide program, the SLboot which depends on the design of SL3512 is innovatively adopted, and the process of its starting and running is carefully explained.
4. the development process and basic principle of the embedded terminal driver are fully expounded. To a certain extent, the shortcomings of the previous embedded terminal design are made up. The development and loading of the PCI driver for the ARM processor and video video processing module are completed for this terminal.
5. the development of SDK real-time video on demand and dynamic monitoring modules based on FH8735 software tool development package is completed. To a certain extent, it can make up the blank of the important functions such as dynamic monitoring and occluding alarm in domestic video monitoring terminal, and basically meet the requirements of the contemporary society on the intellectualization of the embedded system. The data link layer, the protocol and the basic principle of the network layer are deeply studied, and the concrete implementation scheme is given, which has certain guiding significance for the development of the embedded system.
6. finally, the main application fields and future research directions of the monitoring terminal are summarized and prospected, and the further needs to be supplemented and perfected are explained.
【學(xué)位授予單位】：山東師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP368.1;TP277

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