發(fā)布時(shí)間：2018-10-17 17:54

【摘要】：隨著計(jì)算機(jī)技術(shù)和無線網(wǎng)技術(shù)的日益成熟,嵌入式設(shè)備已經(jīng)深入到人們生活的各個(gè)領(lǐng)域。如遠(yuǎn)程監(jiān)控設(shè)備、視頻服務(wù)器等。這些設(shè)備的最主要目的在于滿足實(shí)時(shí)數(shù)據(jù)傳輸?shù)男枨笠约耙恍┛刂乒δ�。嵌入式系統(tǒng)可從規(guī)模、時(shí)限、網(wǎng)絡(luò)能力、與用戶交互幾個(gè)方面來分類。本課題主要研究基于ARM+Linux的嵌入式系統(tǒng)的驅(qū)動及應(yīng)用程序開發(fā)。并結(jié)合幾個(gè)開發(fā)實(shí)例來具體闡述嵌入式系統(tǒng)的開發(fā)流程及系統(tǒng)設(shè)計(jì)。其中無線圖像接收機(jī)控制器主要是通過以太網(wǎng)來對無線圖像接收設(shè)備進(jìn)行控制。而基于ARM11的車載廣告系統(tǒng)則主要是研究用于車載的多媒體設(shè)備。 論文的研究內(nèi)容主要包括采用MFC的用戶界面設(shè)計(jì),嵌入式Linux系統(tǒng)下的并發(fā)服務(wù)器的開發(fā),以及設(shè)備驅(qū)動程序的開發(fā)。在車載廣告系統(tǒng)中,采用的技術(shù)主要有GPS定位技術(shù),Wi-Fi無線通信技術(shù),在Linux的V4L2架構(gòu)下,完成對音視頻文件的處理,并且針對系統(tǒng)需求對MPEG-4媒體文件格式進(jìn)行了手動解析,使得可以對視頻信息和音頻信息分別進(jìn)行解碼,并且實(shí)現(xiàn)了音視頻的同步。
[Abstract]:With the increasing maturity of computer technology and wireless network technology, embedded devices have penetrated into every field of people's life. Such as remote monitoring equipment, video server and so on. The main purpose of these devices is to meet the demand of real-time data transmission and some control functions. Embedded systems can be classified in terms of scale, time limit, network capability, and interaction with users. This paper mainly studies the driver and application development of embedded system based on ARM Linux. The development process and system design of embedded system are elaborated with several development examples. The wireless image receiver controller mainly controls the wireless image receiving device through Ethernet. The vehicle advertising system based on ARM11 is mainly used for vehicle multimedia equipment. The main contents of this paper include the design of user interface using MFC, the development of concurrent server under embedded Linux system, and the development of device driver. In the vehicle advertising system, the main technologies are GPS positioning technology and Wi-Fi wireless communication technology. Under the V4L2 framework of Linux, the audio and video files are processed, and the format of MPEG-4 media files is manually analyzed according to the requirements of the system. So that video and audio information can be decoded, and achieve audio and video synchronization.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：U463.6;TP316.81

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