硬(ying)盤錄(lu)(lu)像(xiang)機(ji)：嵌入式硬(ying)盤錄(lu)(lu)像(xiang)機(ji)是計算機(ji)技術(shu)(shu)、網(wang)絡技術(shu)(shu)、數字視(shi)頻(pin)技術(shu)(shu)和(he)傳統視(shi)頻(pin)、安(an)防(fang)(fang)技術(shu)(shu)相結(jie)合的(de)高科技產品(pin)，具有極高的(de)技術(shu)(shu)含量，是DVD、磁(ci)帶式錄(lu)(lu)像(xiang)機(ji)的(de)換代產品(pin)，可應用于電力遠程監控、銀行保安(an)監控、樓宇智能化、家庭防(fang)(fang)盜監控等領域，具有廣闊的(de)市場前(qian)景。
硬(ying)盤(pan)錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)基(ji)本功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)是(shi)將(jiang)模(mo)(mo)擬(ni)(ni)的(de)(de)(de)(de)(de)(de)(de)(de)音視(shi)頻(pin)信(xin)(xin)號轉變為(wei)(wei)(wei)MPEG數(shu)字(zi)信(xin)(xin)號存(cun)(cun)儲(chu)在硬(ying)盤(pan)（HDD）上(shang)(shang)，并(bing)提供與錄(lu)制(zhi)、播(bo)放(fang)和(he)(he)管(guan)(guan)理(li)節目相(xiang)對應的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)。相(xiang)對于(yu)(yu)傳統的(de)(de)(de)(de)(de)(de)(de)(de)模(mo)(mo)擬(ni)(ni)視(shi)頻(pin)錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)，采(cai)用(yong)硬(ying)盤(pan)錄(lu)像(xiang)(xiang)(xiang)，故常常被(bei)稱(cheng)為(wei)(wei)(wei)硬(ying)盤(pan)錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)，也(ye)被(bei)稱(cheng)為(wei)(wei)(wei)DVR。它(ta)是(shi)一(yi)(yi)(yi)套進行(xing)圖(tu)(tu)像(xiang)(xiang)(xiang)存(cun)(cun)儲(chu)處理(li)的(de)(de)(de)(de)(de)(de)(de)(de)計算(suan)機(ji)(ji)系(xi)(xi)統，具有(you)(you)對圖(tu)(tu)像(xiang)(xiang)(xiang)/語音進行(xing)長時(shi)間(jian)錄(lu)像(xiang)(xiang)(xiang)、錄(lu)音、遠(yuan)(yuan)程監視(shi)和(he)(he)控(kong)(kong)(kong)制(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)，DVR集合了錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)、畫(hua)面分(fen)割(ge)器、云(yun)臺鏡頭控(kong)(kong)(kong)制(zhi)、報(bao)警控(kong)(kong)(kong)制(zhi)、網(wang)絡(luo)(luo)(luo)傳輸等五種(zhong)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)于(yu)(yu)一(yi)(yi)(yi)身，用(yong)一(yi)(yi)(yi)臺設備就能(neng)(neng)(neng)(neng)(neng)(neng)(neng)取(qu)代(dai)模(mo)(mo)擬(ni)(ni)監控(kong)(kong)(kong)系(xi)(xi)統一(yi)(yi)(yi)大堆設備的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)，而且在價格上(shang)(shang)也(ye)逐漸占(zhan)有(you)(you)優勢(shi)。DVR采(cai)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)數(shu)字(zi)記(ji)錄(lu)技術，在圖(tu)(tu)像(xiang)(xiang)(xiang)處理(li)、圖(tu)(tu)像(xiang)(xiang)(xiang)儲(chu)存(cun)(cun)、檢(jian)索(suo)、備份、以及(ji)(ji)網(wang)絡(luo)(luo)(luo)傳遞(di)、遠(yuan)(yuan)程控(kong)(kong)(kong)制(zhi)等方(fang)(fang)面也(ye)遠(yuan)(yuan)遠(yuan)(yuan)優于(yu)(yu)模(mo)(mo)擬(ni)(ni)監控(kong)(kong)(kong)設備，DVR代(dai)表了監控(kong)(kong)(kong)系(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)發展方(fang)(fang)向，是(shi)目前市面上(shang)(shang)監控(kong)(kong)(kong)系(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)首選產品(pin)。總的(de)(de)(de)(de)(de)(de)(de)(de)來(lai)(lai)說，按系(xi)(xi)統結(jie)構(gou)(gou)可(ke)以分(fen)為(wei)(wei)(wei)兩大類：基(ji)于(yu)(yu)PC架(jia)構(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)PC式(shi)(shi)(shi)DVR和(he)(he)脫離PC架(jia)構(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)嵌(qian)入(ru)式(shi)(shi)(shi)DVR。PC式(shi)(shi)(shi)硬(ying)盤(pan)錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)（DVR）：這種(zhong)架(jia)構(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)DVR以傳統的(de)(de)(de)(de)(de)(de)(de)(de)PC機(ji)(ji)為(wei)(wei)(wei)基(ji)本硬(ying)件(jian)，以Win98、Win2000、WinXP、Vista、Linux為(wei)(wei)(wei)基(ji)本軟(ruan)(ruan)件(jian)，配備圖(tu)(tu)像(xiang)(xiang)(xiang)采(cai)集或圖(tu)(tu)像(xiang)(xiang)(xiang)采(cai)集壓(ya)(ya)(ya)縮(suo)(suo)卡(ka)，編制(zhi)軟(ruan)(ruan)件(jian)成為(wei)(wei)(wei)一(yi)(yi)(yi)套完整(zheng)的(de)(de)(de)(de)(de)(de)(de)(de)系(xi)(xi)統。PCDVR各(ge)種(zhong)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)的(de)(de)(de)(de)(de)(de)(de)(de)實現(xian)都依(yi)靠各(ge)種(zhong)板卡(ka)來(lai)(lai)完成，比如視(shi)音頻(pin)壓(ya)(ya)(ya)縮(suo)(suo)卡(ka)、網(wang)卡(ka)、聲卡(ka)、顯(xian)卡(ka)等，這種(zhong)插(cha)卡(ka)式(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)系(xi)(xi)統在系(xi)(xi)統裝配、維修、運輸中很容易出現(xian)不(bu)可(ke)靠的(de)(de)(de)(de)(de)(de)(de)(de)問題，不(bu)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)用(yong)于(yu)(yu)工業控(kong)(kong)(kong)制(zhi)領域，只適合于(yu)(yu)對可(ke)靠性要(yao)(yao)求不(bu)高的(de)(de)(de)(de)(de)(de)(de)(de)商用(yong)辦(ban)公環境。 嵌(qian)入(ru)式(shi)(shi)(shi)硬(ying)盤(pan)錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)（EM-DVR）：嵌(qian)入(ru)式(shi)(shi)(shi)系(xi)(xi)統一(yi)(yi)(yi)般(ban)指非PC系(xi)(xi)統，有(you)(you)計算(suan)機(ji)(ji)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)但又不(bu)稱(cheng)為(wei)(wei)(wei)計算(suan)機(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)設備或器材(cai)。它(ta)是(shi)以應用(yong)為(wei)(wei)(wei)中心，軟(ruan)(ruan)硬(ying)件(jian)可(ke)裁減的(de)(de)(de)(de)(de)(de)(de)(de)，對功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、可(ke)靠性、成本、體積(ji)、功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)耗等嚴格要(yao)(yao)求的(de)(de)(de)(de)(de)(de)(de)(de)微型專用(yong)計算(suan)機(ji)(ji)系(xi)(xi)統。簡單(dan)地說，嵌(qian)入(ru)式(shi)(shi)(shi)系(xi)(xi)統集系(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)應用(yong)軟(ruan)(ruan)件(jian)與硬(ying)件(jian)融于(yu)(yu)一(yi)(yi)(yi)體，類似于(yu)(yu)PC中BIOS的(de)(de)(de)(de)(de)(de)(de)(de)工作(zuo)方(fang)(fang)式(shi)(shi)(shi)，具有(you)(you)軟(ruan)(ruan)件(jian)代(dai)碼(ma)(ma)小、高度自(zi)動化、響應速度快等特(te)點，特(te)別(bie)適合于(yu)(yu)要(yao)(yao)求實時(shi)和(he)(he)多任(ren)務的(de)(de)(de)(de)(de)(de)(de)(de)應用(yong)。嵌(qian)入(ru)式(shi)(shi)(shi)DVR就是(shi)基(ji)于(yu)(yu)嵌(qian)入(ru)式(shi)(shi)(shi)處理(li)器和(he)(he)嵌(qian)入(ru)式(shi)(shi)(shi)實時(shi)操作(zuo)系(xi)(xi)統的(de)(de)(de)(de)(de)(de)(de)(de)嵌(qian)入(ru)式(shi)(shi)(shi)系(xi)(xi)統，它(ta)采(cai)用(yong)專用(yong)芯(xin)片對圖(tu)(tu)像(xiang)(xiang)(xiang)進行(xing)壓(ya)(ya)(ya)縮(suo)(suo)及(ji)(ji)解壓(ya)(ya)(ya)回放(fang)，嵌(qian)入(ru)式(shi)(shi)(shi)操作(zuo)系(xi)(xi)統主要(yao)(yao)是(shi)完成整(zheng)機(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)及(ji)(ji)管(guan)(guan)理(li)。此類產品(pin)沒(mei)有(you)(you)PCDVR那么多的(de)(de)(de)(de)(de)(de)(de)(de)模(mo)(mo)塊和(he)(he)多余(yu)的(de)(de)(de)(de)(de)(de)(de)(de)軟(ruan)(ruan)件(jian)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)，在設計制(zhi)造時(shi)對軟(ruan)(ruan)、硬(ying)件(jian)的(de)(de)(de)(de)(de)(de)(de)(de)穩(wen)定(ding)(ding)性進行(xing)了針對性的(de)(de)(de)(de)(de)(de)(de)(de)規(gui)劃(hua)，因此此類產品(pin)品(pin)質穩(wen)定(ding)(ding)，不(bu)會有(you)(you)死機(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)問題產生，而且在視(shi)音頻(pin)壓(ya)(ya)(ya)縮(suo)(suo)碼(ma)(ma)流的(de)(de)(de)(de)(de)(de)(de)(de)儲(chu)存(cun)(cun)速度、分(fen)辨(bian)率(lv)及(ji)(ji)畫(hua)質上(shang)(shang)都有(you)(you)較大的(de)(de)(de)(de)(de)(de)(de)(de)改善，就功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)來(lai)(lai)說絲毫不(bu)比PCDVR遜色。嵌(qian)入(ru)式(shi)(shi)(shi)DVR系(xi)(xi)統建(jian)立在一(yi)(yi)(yi)體化的(de)(de)(de)(de)(de)(de)(de)(de)硬(ying)件(jian)結(jie)構(gou)(gou)上(shang)(shang)，整(zheng)個視(shi)音頻(pin)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)縮(suo)(suo)、顯(xian)示(shi)、網(wang)絡(luo)(luo)(luo)等功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)全(quan)部可(ke)以通(tong)過一(yi)(yi)(yi)塊單(dan)板來(lai)(lai)實現(xian)，大大提高了整(zheng)個系(xi)(xi)統硬(ying)件(jian)的(de)(de)(de)(de)(de)(de)(de)(de)可(ke)靠性和(he)(he)穩(wen)定(ding)(ding)性。硬(ying)盤(pan)錄(lu)像(xiang)(xiang)(xiang)機(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)主要(yao)(yao)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)包括(kuo)：監視(shi)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、錄(lu)像(xiang)(xiang)(xiang)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、回放(fang)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、報(bao)警功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、控(kong)(kong)(kong)制(zhi)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、網(wang)絡(luo)(luo)(luo)功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)、密碼(ma)(ma)授權功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)和(he)(he)工作(zuo)時(shi)間(jian)表功(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)(gong)能(neng)(neng)(neng)(neng)(neng)(neng)(neng)等。
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