安防TCL監視器在監控系統中的作用
隨著社(she)會的(de)(de)不(bu)(bu)斷發(fa)展，人類步入了(le)高質量的(de)(de)生(sheng)活水平。對(dui)重(zhong)(zhong)要(yao)(yao)(yao)區域的(de)(de)管(guan)理、監(jian)控(kong)(kong)、安(an)全防(fang)(fang)范也是(shi)十(shi)分(fen)重(zhong)(zhong)要(yao)(yao)(yao)，因此現代(dai)化的(de)(de)主(zhu)要(yao)(yao)(yao)場(chang)(chang)所設立安(an)防(fang)(fang)監(jian)控(kong)(kong)系(xi)統(tong)(tong)(tong)是(shi)非常必要(yao)(yao)(yao)的(de)(de)。在主(zhu)要(yao)(yao)(yao)場(chang)(chang)所安(an)裝安(an)防(fang)(fang)監(jian)控(kong)(kong)系(xi)統(tong)(tong)(tong)，通(tong)過對(dui)重(zhong)(zhong)要(yao)(yao)(yao)場(chang)(chang)所如(ru)城市路口、停車場(chang)(chang)、小區花園、住戶(hu)出入口、電梯走廊等重(zhong)(zhong)要(yao)(yao)(yao)位(wei)置的(de)(de)攝像(xiang)機，不(bu)(bu)僅可以看到(dao)主(zhu)要(yao)(yao)(yao)場(chang)(chang)所的(de)(de)情況(kuang)，及時(shi)發(fa)現犯罪分(fen)子(zi)，并可打開(kai)錄像(xiang)機進行錄象，以作為(wei)證據，對(dui)那(nei)些有不(bu)(bu)良(liang)企圖(tu)的(de)(de)人們也起到(dao)一定的(de)(de)威懾作用。但(dan)是(shi)安(an)防(fang)(fang)監(jian)控(kong)(kong)系(xi)統(tong)(tong)(tong)的(de)(de)組(zu)成，在監(jian)控(kong)(kong)業界而言(yan)，系(xi)統(tong)(tong)(tong)組(zu)成一直沒得到(dao)明(ming)確的(de)(de)劃分(fen)，這使(shi)工程商和用戶(hu)之(zhi)間談到(dao)安(an)防(fang)(fang)監(jian)控(kong)(kong)系(xi)統(tong)(tong)(tong)時(shi)溝通(tong)很不(bu)(bu)方便。下面我(wo)對(dui)安(an)防(fang)(fang)監(jian)控(kong)(kong)系(xi)統(tong)(tong)(tong)的(de)(de)組(zu)成做一下簡要(yao)(yao)(yao)說明(ming)。
對于(yu)安防監(jian)控(kong)系統(tong)，根據系統(tong)各部分(fen)功能的不同，我們將整個(ge)安防監(jian)控(kong)系統(tong)劃分(fen)為七層(ceng)——表現層(ceng)、控(kong)制層(ceng)、處理(li)層(ceng)、傳輸層(ceng)、執行層(ceng)、支撐層(ceng)、采集層(ceng)。當然，由于(yu)設(she)備集成(cheng)化越來越高，對于(yu)部分(fen)系統(tong)而言，某些(xie)設(she)備可(ke)能會同時以多個(ge)層(ceng)的身份存在(zai)于(yu)系統(tong)中(zhong)。
一.表現(xian)層
表現城(cheng)是我們(men)最直(zhi)觀感受到(dao)的，它展現了(le)整個安防監控系(xi)統的品質。如監控電(dian)視墻(qiang)(qiang)、監視器液晶監視器、液晶拼接墻(qiang)(qiang)、高(gao)音報警喇叭、報警自動駁接電(dian)話等(deng)等(deng)都屬于這一層(ceng)。
二.控制層
控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)層是(shi)(shi)(shi)(shi)整個安防監(jian)控(kong)(kong)(kong)(kong)系統(tong)(tong)的(de)(de)(de)核(he)心，它是(shi)(shi)(shi)(shi)系統(tong)(tong)科(ke)技水(shui)平的(de)(de)(de)最(zui)明確體現。通(tong)常我(wo)們的(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)方式(shi)有兩種——模(mo)擬(ni)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)和數字(zi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)。模(mo)擬(ni)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)是(shi)(shi)(shi)(shi)早期(qi)的(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)方式(shi)，其控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)臺(tai)通(tong)常由控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)器或者(zhe)模(mo)擬(ni)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)矩陣構成，適用于小(xiao)型局部(bu)安防監(jian)控(kong)(kong)(kong)(kong)系統(tong)(tong)，這種控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)方式(shi)成本較低，故障率較小(xiao)。但對于中(zhong)大(da)型安防監(jian)控(kong)(kong)(kong)(kong)系統(tong)(tong)而(er)言，這種方式(shi)就(jiu)顯得(de)操作(zuo)復雜(za)(za)且無任何價格優勢了，這時我(wo)們更(geng)為(wei)(wei)明智的(de)(de)(de)選擇應該是(shi)(shi)(shi)(shi)數字(zi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)。數字(zi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)是(shi)(shi)(shi)(shi)將工控(kong)(kong)(kong)(kong)計算機作(zuo)為(wei)(wei)監(jian)控(kong)(kong)(kong)(kong)系統(tong)(tong)的(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)核(he)心，它將復雜(za)(za)的(de)(de)(de)模(mo)擬(ni)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)操作(zuo)變為(wei)(wei)簡單(dan)的(de)(de)(de)鼠(shu)標點擊操作(zuo)，將巨大(da)的(de)(de)(de)模(mo)擬(ni)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)器堆迭縮小(xiao)為(wei)(wei)一個工控(kong)(kong)(kong)(kong)計算機，將復雜(za)(za)而(er)數量龐大(da)的(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)電纜變為(wei)(wei)一根(gen)串行電話(hua)線。它將Internet遠程監(jian)控(kong)(kong)(kong)(kong)變為(wei)(wei)事實。但數字(zi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)也不是(shi)(shi)(shi)(shi)那么十(shi)(shi)全十(shi)(shi)美，控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)主機的(de)(de)(de)價格十(shi)(shi)分(fen)昂貴、模(mo)塊浪費的(de)(de)(de)情況、系統(tong)(tong)可(ke)能出現全線崩(beng)潰的(de)(de)(de)危機、控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)較為(wei)(wei)滯后等(deng)等(deng)問題仍然存在。
三(san).處理層
處(chu)理(li)層(ceng)(ceng)或許該稱為(wei)音視頻處(chu)理(li)層(ceng)(ceng)，它將(jiang)有(you)傳(chuan)輸(shu)層(ceng)(ceng)送過(guo)來的音視頻信號加以(yi)分(fen)(fen)配(pei)、放大、分(fen)(fen)割等等處(chu)理(li)，有(you)機的將(jiang)表現(xian)層(ceng)(ceng)與控制層(ceng)(ceng)加以(yi)連接。音視頻分(fen)(fen)配(pei)器(qi)、音視頻放大器(qi)、視頻分(fen)(fen)割器(qi)、音視頻切換器(qi)等等設備都屬于這一層(ceng)(ceng)。
四(si).傳(chuan)輸層
傳(chuan)輸(shu)層(ceng)(ceng)相(xiang)當(dang)于安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)(de)血脈。在(zai)(zai)小型安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)中，我(wo)們最(zui)常(chang)見的(de)(de)(de)傳(chuan)輸(shu)層(ceng)(ceng)設備是(shi)視頻(pin)線(xian)、音頻(pin)線(xian)，對于中遠(yuan)(yuan)程(cheng)監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)而言，我(wo)們常(chang)使(shi)用的(de)(de)(de)是(shi)射頻(pin)線(xian)、微(wei)波，對于遠(yuan)(yuan)程(cheng)監(jian)(jian)控(kong)(kong)(kong)而言，我(wo)們通常(chang)使(shi)用Internet這一(yi)(yi)廉(lian)價載體。值得(de)一(yi)(yi)提的(de)(de)(de)是(shi)，新出(chu)現的(de)(de)(de)傳(chuan)輸(shu)層(ceng)(ceng)介(jie)質——網(wang)(wang)線(xian)/光纖。大多數(shu)(shu)(shu)(shu)人在(zai)(zai)數(shu)(shu)(shu)(shu)字(zi)安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)上存在(zai)(zai)一(yi)(yi)個誤區，他們認為(wei)控(kong)(kong)(kong)制(zhi)層(ceng)(ceng)使(shi)用的(de)(de)(de)數(shu)(shu)(shu)(shu)字(zi)控(kong)(kong)(kong)制(zhi)的(de)(de)(de)安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)就是(shi)數(shu)(shu)(shu)(shu)字(zi)安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)了(le)，其實不然(ran)(ran)。純(chun)數(shu)(shu)(shu)(shu)字(zi)安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)(de)傳(chuan)輸(shu)介(jie)質一(yi)(yi)定是(shi)網(wang)(wang)線(xian)或光纖。信(xin)號從采(cai)集(ji)層(ceng)(ceng)出(chu)來時，就已經(jing)調制(zhi)成數(shu)(shu)(shu)(shu)字(zi)信(xin)號了(le)，數(shu)(shu)(shu)(shu)字(zi)信(xin)號在(zai)(zai)目(mu)前已趨成熟(shu)的(de)(de)(de)網(wang)(wang)絡上跑(pao)，理(li)論上是(shi)無衰減的(de)(de)(de)，這就保(bao)證(zheng)遠(yuan)(yuan)程(cheng)監(jian)(jian)控(kong)(kong)(kong)圖像(xiang)的(de)(de)(de)無損失顯示，這是(shi)模擬傳(chuan)輸(shu)無法比擬的(de)(de)(de)。當(dang)然(ran)(ran)，高性能的(de)(de)(de)回報(bao)也需(xu)要高成本(ben)的(de)(de)(de)投(tou)入，這是(shi)純(chun)數(shu)(shu)(shu)(shu)字(zi)安(an)(an)(an)防監(jian)(jian)控(kong)(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)無法普及最(zui)重(zhong)要的(de)(de)(de)原(yuan)因之一(yi)(yi)。
五.執行層
執行層(ceng)是我們控(kong)制(zhi)指(zhi)令的命令對象(xiang)，在某些時候，它和(he)我們后面(mian)所說的支撐(cheng)誠、采集層(ceng)不(bu)太好截(jie)然分開(kai)，我們認(ren)為受控(kong)對象(xiang)即為執行層(ceng)設(she)備。
六.支撐層
顧名思義，支撐層(ceng)(ceng)是用(yong)于(yu)后端設(she)備(bei)(bei)的支撐，保護和支撐采集層(ceng)(ceng)、執行層(ceng)(ceng)設(she)備(bei)(bei)。它包(bao)括支架、防護罩等等輔助設(she)備(bei)(bei)。
七.采集層
采集層是整個安防監控系統品質好壞的關鍵因素，也是系統成本開銷最大的地方。它包括鏡頭、攝像機、報警傳感器等等。
tcl監視器在安防配置需求量是非常龐大，隨著液晶技術的成熟和成本的不斷下降， tcl監視器也不斷“近民”，用戶對液晶監視器的要求也越來越高，及其同行安防設備的競爭， tcl監視器必然向智能化(hua)高清化(hua)的(de)道路(lu)，并不(bu)斷的(de)創新，以(yi)提(ti)示其(qi)性能，才能跟上安防(fang)監控市場(chang)的(de)發展(zhan)潮流，滿足用戶對安防(fang)監控設(she)備要求越來越高的(de)需求。
