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href="http://www.cdcfah.com/cp/second-aqfh_afjksb/">安防監(jiān)控設備</a>?<a href="http://www.cdcfah.com/cp/third-afjksb_jcjkxt/">集成監(jiān)控系統(tǒng)</a>?泰州船舶視頻監(jiān)控系統(tǒng)CCTV 上海翊皖船舶設備供應</p><div id="swq802d" class="leftbox clearfix"><h1>泰州船舶視頻監(jiān)控系統(tǒng)CCTV 上海翊皖船舶設備供應</h1><div id="sr839bt" class="proBig"><div id="lpe7fah" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637423537835983343/1942194.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="j3uxmdk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637423537835983343/1942194.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dhoqabd" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>泰州船舶視頻監(jiān)控系統(tǒng)CCTV,cctv監(jiān)控系統(tǒng)</p><p><span>***更新：</span>2020-12-27 06:18:03</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3cj74rj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海翊皖船舶設備有限公司</a></p><p><span>聯(lián)系人：</span>徐慶華</p><p><span>郵箱: </span>hc_automation@163.com</p><p><span>電話: </span>13917998260</p><p><span>傳真: </span>021_58461662</p><p><span>網(wǎng)址: </span>http://www.sh-yiwan.cn</p><p><span>手機: </span>021-58361662</p><p><span>地址: </span>中國(上海)自由貿(mào)易試驗區(qū)張楊路828-838號26樓</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ztkhoax" class="page-proshow02"><p class="title">詳細說明</p><div id="enf39he" class="box"><p><p style="text-indent:25px">CCTV監(jiān)控系統(tǒng)組成：磁盤陣列。在大型監(jiān)控系統(tǒng)中，泰州船舶視頻監(jiān)控系統(tǒng)CCTV，由于監(jiān)控錄像多，儲存大，則要用到磁盤陣列。磁盤陣列是由很多價格較便宜的磁盤，組合成一個容量巨大的磁盤組，利用個別磁盤提供數(shù)據(jù)所產(chǎn)生加成效果提升整個磁盤系統(tǒng)效能。利用這項技術，將數(shù)據(jù)切割成許多區(qū)段，分別存放在各個硬盤上。磁盤陣列還能利用同位檢查（Parity Check）的觀念，在數(shù)組中任意一個硬盤故障時，仍可讀出數(shù)據(jù)，在數(shù)據(jù)重構時，將數(shù)據(jù)經(jīng)計算后重新置入新硬盤中。視頻分配器。一路視頻信號對應一臺監(jiān)視器或錄像機，若想一臺攝像機的圖像送給多個管理者看，較好選擇視頻分配器。因為并聯(lián)視頻信號衰減較大，泰州船舶視頻監(jiān)控系統(tǒng)CCTV，送給多個輸出設備后由于阻抗不匹配等原因，圖像會嚴重失真，線路也不穩(wěn)定。視頻分配器除了阻抗匹配，還有視頻增益，使視頻信號可以同時送給多個輸出設備而不受影響，泰州船舶視頻監(jiān)控系統(tǒng)CCTV。閉路電視監(jiān)控系統(tǒng)能在人們無法直接觀察的場合，卻能實時、形象、真實地反映被監(jiān)視控制對象的畫面。泰州船舶視頻監(jiān)控系統(tǒng)CCTV</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州船舶視頻監(jiān)控系統(tǒng)CCTV,cctv監(jiān)控系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637423537835983343/1942194.png"></div><p style="text-indent:25px">CCTV系統(tǒng)的綜合防雷：前端設備的防雷。前端設備有室外和室內(nèi)安裝兩種情況，安裝在室內(nèi)的設備一般不會遭受直擊雷擊，但需考慮防止雷電過電壓對設備的侵害，而室外的設備則同時需考慮防止直擊雷擊。前端設備如攝像頭應置于接閃器（避雷針或其它接閃導體）有效保護范圍之內(nèi)。當攝像機**架設時，避雷針較好距攝像機3－4米的距離。為防止電磁感應，沿桿引上攝像機的電源線和信號線應穿金屬管屏蔽。為防止雷電波沿線路侵入前端設備，應在設備前的每條線路上加裝合適的避雷器，如電源線（220V或DC12V）、視頻線、信號線和云臺控制線?，F(xiàn)在也有專門用于攝像機的三合一（電源+視頻+控制）、二合一防雷器（保護電源線路和視頻線路）。信號線傳輸距離長，耐壓水平低，極易感應雷電流而損壞設備，為了將雷電流從信號傳輸線傳導入地，信號過電壓保護器須快速響應，在設計信號傳輸線的保護時必須考慮信號的傳輸速率、信號電平，啟動電壓以及雷電通量等參數(shù)。室外的前端設備應有良好的接地，接地電阻小于4Ω，高土壤電阻率地區(qū)可放寬至 <10Ω。泰州船舶視頻監(jiān)控系統(tǒng)CCTV我們常用的交換機有百兆交換機、千兆交換機。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州船舶視頻監(jiān)控系統(tǒng)CCTV,cctv監(jiān)控系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637435704616831100/5089513.png"></div><p style="text-indent:25px">閉路電視監(jiān)控系統(tǒng)其實是什么?閉路電視，英文翻譯 Closed-Circuit Television（CCTV），是一種只在固定的回路設備里播放信號的攝像機監(jiān)控系統(tǒng)，可讓您隨時監(jiān)控企業(yè)范圍和四周發(fā)生的事情。連接了監(jiān)控系統(tǒng)攝像機和監(jiān)視器，使您或保安人員可以實時查看發(fā)生的事件。監(jiān)控系統(tǒng)的另一個重要優(yōu)點是，可以將拍攝到的影像存檔作為記錄或證據(jù)以供日后使用或參考。監(jiān)控系統(tǒng)為何被稱為“閉路電視”？監(jiān)控系統(tǒng)為“封閉回路”的電視所以有別于普通的電視系統(tǒng)，因為它形成了一個封閉的網(wǎng)絡，限制于指定范圍里鏡頭捕獲的信息。雖然也是點對點的無線連接，但 CCTV 監(jiān)控系統(tǒng)的信號不公開傳輸，也不會接收公眾廣播的節(jié)目或內(nèi)容，因此不會受到外部廣播的干擾。監(jiān)控系統(tǒng)僅接收和顯示來自安裝在現(xiàn)場的攝像頭影像，因此閉路電視一般是指用于廣播以外的電視，如工業(yè)電視、軍工電視、醫(yī)用電視、水下電視等。</p><p style="text-indent:25px">高清網(wǎng)絡監(jiān)控系統(tǒng)如何選擇交換機：帶寬與交換機基礎知識：首先我們要弄清楚每路圖像占用多少帶寬。720P 網(wǎng)絡攝像機，主碼流為 2~3M，子碼流為 0.8~1M，共約 4M。1080P 網(wǎng)絡攝像機，主碼流為 4~6M，子碼流為 0.8~1M，共約 7M。其次要弄清楚交換機的帶寬容量，我們常用的交換機有百兆交換機、千兆交換機。它們的實際帶寬一般只有理論值的 60~70% ，所以它們的總帶寬容量大致是 60Mbps 或 600Mbps。從網(wǎng)絡拓撲結構上來講，一個局域網(wǎng)通常是兩到三層結構。接攝像機那端為接入層，一般用百兆交換機就夠了，除非你在一個交換機上接了很多個攝像機。直接觀察被監(jiān)視場所的情況，同時可以把監(jiān)視場所的情況進行同步錄像。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州船舶視頻監(jiān)控系統(tǒng)CCTV,cctv監(jiān)控系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637423537866549781/9686711.png"></div><p style="text-indent:25px">CCTV監(jiān)控系統(tǒng)中硬盤錄像機的功能實現(xiàn)：為了解決多卡應用的資源占用問題，在單卡單路硬盤錄像機問世后不久，有廠家推出了在一塊卡上集成兩片甚至4片視頻處理芯片（DSP或ASIC）的多路視音頻采集卡，因而可以同時實現(xiàn)對兩路信號或4路信號的實時采集與壓縮處理。這種結構實際上是每路視頻信號地對應著一片視頻處理芯片，但是它們共用一片PCI-PCI橋接芯片，因而僅占用一個PC插槽，加上視音頻信號的采集壓縮是由卡上的硬件來實現(xiàn)，因而有效地減少了硬盤錄像對PC資源的占用。還有一種與上述實現(xiàn)原理不盡相同的基于PC的單卡多路硬盤錄像機：卡上的一片視頻處理芯片就要處理多路輸入信號，因而需采用時分輪換方式對多路視頻信號進行采集，并以M-JPEG壓縮格式進行錄像。用于顯示和記錄、視頻處理、輸出控制信號、接受前端傳來的信號。泰州船舶視頻監(jiān)控系統(tǒng)CCTV</p><p style="text-indent:25px">控制主機再將視頻信號分配到各監(jiān)視器及錄像設備，同時可將需要傳輸?shù)恼Z音信號同步錄入到錄像機內(nèi)。泰州船舶視頻監(jiān)控系統(tǒng)CCTV</p><p style="text-indent:25px">CCTV監(jiān)控系統(tǒng)發(fā)展歷史：有限遠程監(jiān)視/控制能力仍不能從任意客戶機訪問任意攝像機。您只能通過DVR間接訪問攝像機。磁盤發(fā)生故障風險與RAID冗余和磁帶相比，“模擬-數(shù)字”方案錄像沒有保護，易于丟失。第三代視頻監(jiān)控：未來完全IP視頻監(jiān)控系統(tǒng)（IPVS）：全IP視頻監(jiān)控系統(tǒng)與前面兩種方案相比存在明顯區(qū)別。該系統(tǒng)優(yōu)勢是攝像機內(nèi)置Web服務器，并直接提供以太網(wǎng)端口。這些攝像機生成JPEG或MPEG4數(shù)據(jù)文件，可供任何經(jīng)授權客戶機從網(wǎng)絡中任何位置訪問、監(jiān)視、記錄并打印，而不是生成連續(xù)模擬視頻信號形式圖像。泰州船舶視頻監(jiān)控系統(tǒng)CCTV</p><p style="text-indent:25px">上海翊皖船舶設備有限公司發(fā)展規(guī)模團隊不斷壯大，現(xiàn)有一支專業(yè)技術團隊，各種專業(yè)設備齊全。致力于創(chuàng)造高品質(zhì)的產(chǎn)品與服務，以誠信、敬業(yè)、進取為宗旨，以建上海翊皖船舶設備有限公司產(chǎn)品為目標，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司堅持以客戶為中心、我司主要從事船舶設備的安裝、維修、倉儲（除危險化學品），特別擅長解決主機遙控的各種問題。從事船舶技術領域內(nèi)的技術開發(fā)，技術轉(zhuǎn)讓，技術服務，技術咨詢，從事貨物及技術的進出口業(yè)務，以下限分支機構經(jīng)營：船舶設備制造、加工。市場為導向，重信譽，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準則。公司致力于打造高品質(zhì)的主機遙控修理，監(jiān)測報警系統(tǒng)修理，船舶電機維修，閥門遙控修理。</p></p><br /><p>文章來源地址: 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