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安防系統的系統功能是(shi)什么?

安防系統的系統功能是什么?

  • 分類:行業新聞
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  • 發布時間:2021-12-13 13:36
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【概(gai)要(yao)描述】對(dui)于安(an)防系(xi)(xi)統(tong),根據系(xi)(xi)統(tong)的(de)各(ge)個(ge)部(bu)分,將整個(ge)安(an)全監控系(xi)(xi)統(tong)分為7層:性能、控制、處理、發送、執行、支持、收集(ji)。當然,由于設備(bei)集(ji)成(cheng)越來越高,對(dui)于某些(xie)系(xi)(xi)統(tong)來說(shuo),某些(xie)設備(bei)可以(yi)同時以(yi)多個(ge)層存在于系(xi)(xi)統(tong)中。

安防系統的系統功能是什么?

【概(gai)要描述】對于安防系統(tong),根據系統(tong)的各個部分,將整個安全監控(kong)系統(tong)分為7層(ceng):性(xing)能(neng)、控(kong)制、處理、發送、執(zhi)行、支持、收集(ji)。當然(ran),由于設備集(ji)成越(yue)來越(yue)高,對于某(mou)些(xie)系統(tong)來說,某(mou)些(xie)設備可以(yi)同時以(yi)多(duo)個層(ceng)存在(zai)于系統(tong)中(zhong)。

  • 分類(lei):行業新聞
  • 作者(zhe):
  • 來源:
  • 發布(bu)時間:2021-12-13 13:36
  • 訪問量(liang):
詳情

  安防系統的系統功能是什么?

  對于(yu)安(an)(an)(an)防(fang)系統,根據(ju)安(an)(an)(an)防(fang)系統的各個部分,將整個安(an)(an)(an)全(quan)監控系統分為7層:性能、控制、處理、發送、執行、支持、收集。當然(ran),由(you)于(yu)設備集成(cheng)越來越高,對于(yu)某些(xie)安(an)(an)(an)防(fang)系統來說,某些(xie)設備可以同時以多(duo)個層存(cun)在(zai)于(yu)安(an)(an)(an)防(fang)系統中。

安防系統的系統功能是什么?

  1.績效水平

  表現層是我(wo)們直(zhi)觀的感受(shou),它顯示(shi)了整個安(an)全監控系(xi)統的質量(liang)。CCTV墻、顯示(shi)器、高(gao)音報警揚聲(sheng)器、報警自動反駁電話(hua)等都屬于(yu)這一層。

  2.控制層次

  安(an)防系(xi)統(tong)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)層(ceng)是(shi)(shi)整個(ge)安(an)全(quan)(quan)監控(kong)(kong)(kong)(kong)(kong)系(xi)統(tong)的(de)(de)(de)(de)(de)(de)核(he)心,是(shi)(shi)系(xi)統(tong)技術水平的(de)(de)(de)(de)(de)(de)明(ming)確體現(xian)。一(yi)(yi)般來(lai)說,我們的(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)方法(fa)有模擬控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)和數字控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)兩種(zhong)(zhong)(zhong)。模擬控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)是(shi)(shi)一(yi)(yi)種(zhong)(zhong)(zhong)初始(shi)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)方法(fa),通常由控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)器或(huo)模擬控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)矩陣組成(cheng),適用于(yu)小(xiao)型本地(di)安(an)全(quan)(quan)監控(kong)(kong)(kong)(kong)(kong)系(xi)統(tong)。這(zhe)種(zhong)(zhong)(zhong)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)方法(fa)成(cheng)本低(di),故障(zhang)率低(di),但對于(yu)大(da)中型安(an)全(quan)(quan)監控(kong)(kong)(kong)(kong)(kong)系(xi)統(tong)來(lai)說,它(ta)似乎很復(fu)雜(za),沒有價格(ge)優(you)勢。在這(zhe)種(zhong)(zhong)(zhong)情況下,更明(ming)智的(de)(de)(de)(de)(de)(de)選擇應該是(shi)(shi)數字控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)。成(cheng)功數字控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)是(shi)(shi)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)系(xi)統(tong)的(de)(de)(de)(de)(de)(de)核(he)心,它(ta)將復(fu)雜(za)的(de)(de)(de)(de)(de)(de)模擬控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)任務變成(cheng)簡(jian)單的(de)(de)(de)(de)(de)(de)鼠標點擊操作,將巨大(da)的(de)(de)(de)(de)(de)(de)模擬控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)器堆(dui)棧(zhan)縮(suo)小(xiao)到一(yi)(yi)臺(tai)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)計算機,將復(fu)雜(za)而龐大(da)的(de)(de)(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)電(dian)纜轉換成(cheng)串行電(dian)話(hua)線(xian)。這(zhe)使中遠程監控(kong)(kong)(kong)(kong)(kong)成(cheng)為(wei)(wei)事實,使互聯網遠程監控(kong)(kong)(kong)(kong)(kong)成(cheng)為(wei)(wei)可能。控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)主機的(de)(de)(de)(de)(de)(de)價格(ge)非常昂(ang)貴,模塊浪費(fei)的(de)(de)(de)(de)(de)(de)情況,全(quan)(quan)系(xi)統(tong)可能崩潰的(de)(de)(de)(de)(de)(de)危機,控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)緩慢(man)等問題仍(reng)然存在。

  3.程序層

  安防系統處(chu)(chu)理(li)層(ceng)(ceng)可以稱為(wei)音(yin)(yin)頻(pin)(pin)(pin)視(shi)頻(pin)(pin)(pin)處(chu)(chu)理(li)層(ceng)(ceng),通過(guo)分配、放大、分割等(deng)處(chu)(chu)理(li)從傳輸層(ceng)(ceng)發(fa)送的音(yin)(yin)頻(pin)(pin)(pin)視(shi)頻(pin)(pin)(pin)信(xin)號,將性能層(ceng)(ceng)有機地(di)連接到控制層(ceng)(ceng)。音(yin)(yin)頻(pin)(pin)(pin)視(shi)頻(pin)(pin)(pin)分配器(qi)、音(yin)(yin)頻(pin)(pin)(pin)視(shi)頻(pin)(pin)(pin)放大器(qi)、視(shi)頻(pin)(pin)(pin)分路(lu)器(qi)、音(yin)(yin)頻(pin)(pin)(pin)視(shi)頻(pin)(pin)(pin)開關(guan)等(deng)設備屬于這一(yi)層(ceng)(ceng)。

  4.傳輸層

  安防系統傳(chuan)(chuan)輸(shu)(shu)(shu)層(ceng)(ceng)(ceng)就像(xiang)(xiang)是安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)血統(tong)(tong)。在小型(xing)安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)中(zhong),常見(jian)的(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)(shu)層(ceng)(ceng)(ceng)設備是視頻線、音(yin)頻線,對(dui)于中(zhong)遠(yuan)程監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong),經常使用(yong)射頻、微波,對(dui)于遠(yuan)程監(jian)(jian)(jian)(jian)(jian)控(kong)(kong),通(tong)常使用(yong)廉價的(de)(de)(de)(de)互聯(lian)網載體。有(you)(you)趣的(de)(de)(de)(de)是,出(chu)現了新的(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)(shu)層(ceng)(ceng)(ceng)介質——網線/光纖(xian)。大多(duo)數(shu)(shu)(shu)人對(dui)數(shu)(shu)(shu)字(zi)(zi)安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)存在誤解,他們認為(wei)控(kong)(kong)制層(ceng)(ceng)(ceng)使用(yong)的(de)(de)(de)(de)數(shu)(shu)(shu)字(zi)(zi)控(kong)(kong)制安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)是數(shu)(shu)(shu)字(zi)(zi)安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong),但事實并非如此。純數(shu)(shu)(shu)字(zi)(zi)安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)(de)(de)傳(chuan)(chuan)輸(shu)(shu)(shu)介質是網線或光纖(xian)。信(xin)號從采集層(ceng)(ceng)(ceng)出(chu)來的(de)(de)(de)(de)時候(hou)已(yi)經被調(diao)制成數(shu)(shu)(shu)字(zi)(zi)信(xin)號了。數(shu)(shu)(shu)字(zi)(zi)信(xin)號跑(pao)在已(yi)經成熟的(de)(de)(de)(de)網絡(luo)上(shang),理論上(shang)沒有(you)(you)衰減(jian)。這樣可以保證遠(yuan)程監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)圖像(xiang)(xiang)的(de)(de)(de)(de)無(wu)損顯示。這是模擬傳(chuan)(chuan)輸(shu)(shu)(shu)無(wu)法比(bi)擬的(de)(de)(de)(de)。當然,高性能(neng)收(shou)益也需要(yao)昂(ang)貴的(de)(de)(de)(de)投資(zi)。這是純數(shu)(shu)(shu)字(zi)(zi)安(an)(an)(an)全(quan)監(jian)(jian)(jian)(jian)(jian)控(kong)(kong)系(xi)(xi)(xi)(xi)統(tong)(tong)不普及的(de)(de)(de)(de)重要(yao)原因之(zhi)一。


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