數(shù)碼相機(jī)的控制系統(tǒng)設(shè)計

電氣工程論文編號:DQ168   論文字?jǐn)?shù):16097,頁數(shù):41

目 錄
摘  要 I
Abstract II
1．引言 1
1.1 數(shù)碼相機(jī)發(fā)展歷史 1
1.2控制系統(tǒng)的歷史、現(xiàn)狀和趨勢 1
1.3 DSP的歷史、現(xiàn)狀和趨勢 2
2. 自動對焦原理 3
2.1自動對焦歷史及現(xiàn)狀 3
2.2自動對焦控制原理 5
2.3本論文的研究內(nèi)容 9
3．系統(tǒng)硬件的構(gòu)成 10
3.1 DSP系統(tǒng)設(shè)計 10
3.1.1 DSP系統(tǒng)簡介 11
3.1.2 DSP芯片及其簡介 12
3.1.3 DSP系統(tǒng)電路設(shè)計 16
3.1.4步進(jìn)電機(jī)硬件設(shè)計 20
3.2 CMOS圖像傳感器 21
3.2.1 CMOS圖像傳感器簡介 22
3.2.2 CMOS圖像傳感器OV7620 27
3.2.3 CMOS圖像傳感器電路設(shè)計 28
4．軟件設(shè)計 30
4.1 整體軟件設(shè)計 30
4.2 自動對焦軟件設(shè)計 32
4.3 步進(jìn)電機(jī)驅(qū)動軟件設(shè)計 33
5. 總  結(jié) 36
致 謝 37
參考文獻(xiàn) 38

摘  要

 數(shù)碼相機(jī)的出現(xiàn)是現(xiàn)代通信、計算機(jī)產(chǎn)業(yè)、照相產(chǎn)業(yè)高速發(fā)展的產(chǎn)物。隨著電信、計算機(jī)產(chǎn)品的普及和家庭化，數(shù)碼相機(jī)的應(yīng)用領(lǐng)域也日益廣泛。數(shù)碼相機(jī)像素多少、曝光方式、附加功能等一直是我們選購數(shù)碼相機(jī)時主要關(guān)注點，為滿足用戶越來越高的要求數(shù)碼相機(jī)的控制系統(tǒng)也不斷在發(fā)展。
 本系統(tǒng)的設(shè)計從硬件和軟件兩方面進(jìn)行研究設(shè)計。硬件方面要完成原理圖的設(shè)計，器件的選型，控制電路、驅(qū)動電路、隔離電路等模塊的設(shè)計；軟件方面要研究圖象聚焦的數(shù)學(xué)模型，聚焦控制策略的選擇，驅(qū)動電機(jī)等模塊的軟件設(shè)計。硬件電路采用Protel軟件設(shè)計原理圖；軟件編寫系統(tǒng)流程圖和各模塊流程圖。
關(guān)鍵字：數(shù)碼相機(jī)；控制系統(tǒng)；DSP
 
Abstract

 The appearance of digital cameras is the product of a modern communications and computer industries, the rapid development of photographic products industry. With the universalling of the telecommunications, computer products，digital cameras can be applicated in more and more areas. The number of pixels of digital camera, exposure mode, additional functions have been condensered when we buy a digital camera. The digital camera control system has been in developmentbecause of the growing demands.
 The design of the system has two aspects of study design of hardware and software. I will complete the schematic design as Hardware, the selection of devices, control circuits, drive circuitry, isolation circuitry, such as module design as Hardware; I will study the mathematical model of image focus, focus on the choice of control strategy, drive motor, such as software modules design. Hardware circuit will be designed by Protel schematic and PCB documents; flow chart and flow chart of the module will been written.
 
Keywords: digital camera；control system；DSP