【摘要】：隨著嵌入式系統(tǒng)技術(shù)、數(shù)字信號(hào)處理技術(shù)和視頻分析技術(shù)的進(jìn)步,視頻監(jiān)控正從傳統(tǒng)的人工監(jiān)控朝著智能監(jiān)控的方向發(fā)展。中國(guó)安防市場(chǎng)在“科技強(qiáng)警”、“金融聯(lián)網(wǎng)監(jiān)控”、“平安城市”等項(xiàng)目的拉動(dòng)下,市場(chǎng)需求急劇增長(zhǎng),整個(gè)安防市場(chǎng)的規(guī)模迅速擴(kuò)大。本課題根據(jù)智能無(wú)線視頻監(jiān)控系統(tǒng)項(xiàng)目對(duì)硬件平臺(tái)的需求,選用TI公司高性能的達(dá)芬奇系列DSP芯片TMS320DM6437作為主處理器,圍繞其進(jìn)行外圍電路的設(shè)計(jì),完成了智能視頻分析系統(tǒng)硬件設(shè)計(jì)。 本論文主要完成了六個(gè)方面的工作： 1、介紹了智能視頻監(jiān)控系統(tǒng)的發(fā)展現(xiàn)狀、達(dá)芬奇技術(shù)的概況、本課題的來(lái)源和意義。 2、介紹了智能視頻監(jiān)控系統(tǒng)的總體方案,完成了系統(tǒng)主要元器件的選型,硬件電路總體設(shè)計(jì),傳輸協(xié)議的選擇和視頻壓縮編碼標(biāo)準(zhǔn)的選擇。 3、介紹了主處理器TMS320DM6437的基本結(jié)構(gòu)和各個(gè)部分的功能。主處理器包括DSP子系統(tǒng),視頻處理子系統(tǒng)(VPSS)和豐富的外圍設(shè)備接口。 4、完成了整個(gè)系統(tǒng)各個(gè)模塊的硬件電路設(shè)計(jì)。電源模塊進(jìn)行了電源類(lèi)型需求分析和電源電路詳細(xì)設(shè)計(jì)；時(shí)鐘模塊介紹了DSP時(shí)鐘和各個(gè)模塊時(shí)鐘產(chǎn)生電路；復(fù)位和啟動(dòng)模塊介紹了系統(tǒng)復(fù)位電路和啟動(dòng)模式配置電路；外部存儲(chǔ)器擴(kuò)展模塊介紹了DDR2SDRAM的擴(kuò)展電路和NOR FLASH的擴(kuò)展電路；視頻模塊介紹了視頻輸入電路和視頻輸出電路；音頻模塊介紹了多通道緩沖串行口(McBSP)和音頻接口電路；Ethernet模塊介紹了以太網(wǎng)電路；串口電路部分介紹了RS485接口電路和RS232接口電路；然后介紹了JTAG接口電路。 5、介紹了典型的PCB板層安排,完成了智能視頻分析系統(tǒng)PCB板層設(shè)計(jì),DDR2SDRAM器件布局的注意事項(xiàng)和整個(gè)電路板元器件的布局,PCB布線的注意事項(xiàng)和整個(gè)系統(tǒng)的PCB設(shè)計(jì)。 6、總結(jié)了本論文的主要工作并闡述了未來(lái)可以繼續(xù)努力的方向。
[Abstract]:With the development of embedded system technology, digital signal processing technology and video analysis technology, video surveillance is developing from traditional manual monitoring to intelligent monitoring. China's security market has been driven by projects such as "science and technology," financial network monitoring, "and" Ping an City, "which have led to a sharp increase in market demand and a rapid expansion of the scale of the entire security market. According to the demand of the hardware platform of the intelligent wireless video surveillance system project, the paper selects TMS320DM6437, a series of high performance DSP chips of TI Company, as the main processor, and designs the peripheral circuit around it. The hardware design of intelligent video analysis system is completed. This paper mainly completed six aspects of the work: 1, introduced the development of intelligent video surveillance system, da Vinci technology overview, The source and significance of this subject. 2. The overall scheme of the intelligent video surveillance system is introduced. The selection of the main components of the system and the overall design of the hardware circuit are completed. The basic structure and functions of the main processor TMS320DM6437 are introduced. The main processor includes DSP subsystem, video processing subsystem (VPSS) and abundant peripheral interface. The power supply module has carried on the power type demand analysis and the power supply circuit detailed design; the clock module has introduced the DSP clock and each module clock generation circuit; the reset and start module has introduced the system reset circuit and the start mode configuration circuit; External memory expansion module introduces DDR2 SDRAM expansion circuit and nor flash expansion circuit, video module introduces video input circuit and video output circuit, audio module introduces multi-channel buffer serial port (McBSP) and audio interface circuit. Ethernet module introduces Ethernet circuit, serial port circuit introduces RS485 interface circuit and RS232 interface circuit, and then introduces JTAG interface circuit. The PCB layer design of the intelligent video analysis system has been completed, and the matters needing attention in the layout of DDR2 SDRAM, the layout and the PCB wiring of the whole circuit board and the PCB design of the whole system have been completed. 6. The main contents of this paper have been summarized. Work and explain the direction that can continue to work hard in the future.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TP391.41;TP368.1

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