紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售上海翊皖船舶設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="高清網(wǎng)絡(luò)監(jiān)控系統(tǒng)如何選擇交換機(jī)：帶寬與交換機(jī)基礎(chǔ)知識(shí)：首先我們要弄清楚每路圖像占用多少帶寬。720P網(wǎng)絡(luò)攝像機(jī)，主碼流為2~3M，子碼流為0.8~1M，共約4M。1080P網(wǎng)絡(luò)攝像機(jī)，主碼流為4~6M，子碼流為0，紹興船舶CCTV視頻監(jiān)控系"><meta name="keywords" content="紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售,cctv監(jiān)控系統(tǒng)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta 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發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺(tái) </span><div id="5xgy7da" class="searchbox"><div id="l3qcri2" class="searchLt"><div id="m47ztv5" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="9c7nprf" class="clearfix searchWrap"><div id="5c4bikj" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="afbnkbq" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁(yè)</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = 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id="9j4m7nu" class="proBig"><div id="iyfh3s3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637435704616831100/5089513.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vmjbov8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637435704616831100/5089513.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ht7z4td" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售,cctv監(jiān)控系統(tǒng)</p><p><span>***更新：</span>2021-02-07 01:13:54</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="q23g48v" 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(shè)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(jī): </span>021-58361662</p><p><span>地址: </span>中國(guó)(上海)自由貿(mào)易試驗(yàn)區(qū)張楊路828-838號(hào)26樓</p><p>[當(dāng)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="iqfh2z7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3uoas3f" class="box"><p><p style="text-indent:25px">高清網(wǎng)絡(luò)監(jiān)控系統(tǒng)如何選擇交換機(jī)：帶寬與交換機(jī)基礎(chǔ)知識(shí)：首先我們要弄清楚每路圖像占用多少帶寬。720P 網(wǎng)絡(luò)攝像機(jī)，主碼流為 2~3M，子碼流為 0.8~1M，共約 4M。1080P 網(wǎng)絡(luò)攝像機(jī)，主碼流為 4~6M，子碼流為 0，紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售.8~1M，共約 7M。其次要弄清楚交換機(jī)的帶寬容量，我們常用的交換機(jī)有百兆交換機(jī)、千兆交換機(jī)。它們的實(shí)際帶寬一般只有理論值的 60~70% ，紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售，所以它們的總帶寬容量大致是 60Mbps 或 600Mbps，紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售。從網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)上來(lái)講，一個(gè)局域網(wǎng)通常是兩到三層結(jié)構(gòu)。接攝像機(jī)那端為接入層，一般用百兆交換機(jī)就夠了，除非你在一個(gè)交換機(jī)上接了很多個(gè)攝像機(jī)。在傳感器件上產(chǎn)生的圖像將是物體的倒像，盡管用一個(gè)簡(jiǎn)單的凸透鏡就可以實(shí)現(xiàn)上述目的。紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售,cctv監(jiān)控系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637435704616831100/5089513.png"></div><p style="text-indent:25px">CCTV監(jiān)控系統(tǒng)的功能：閉路電視（又稱(chēng)CCTV）監(jiān)控系統(tǒng)是安防領(lǐng)域中的重要組成部分，系統(tǒng)通過(guò)攝像機(jī)及其輔助設(shè)備（鏡頭、云臺(tái)等），直接觀察被監(jiān)視場(chǎng)所的情況，同時(shí)可以把監(jiān)視場(chǎng)所的情況進(jìn)行同步錄像。另外，電視監(jiān)控系統(tǒng)還可以與防盜報(bào)警系統(tǒng)等其他安全技術(shù)防范體系聯(lián)動(dòng)行動(dòng)，使用戶(hù)安全防范能力得到整體的提高。它可以通過(guò)遙控?cái)z像機(jī)及其輔助設(shè)備（鏡頭、云臺(tái)等）直接觀看被監(jiān)視場(chǎng)所的一切情況，可以把被監(jiān)視場(chǎng)所的情況一目了然，且提供錄像可供事后查詢(xún)和分析。同時(shí)，電視監(jiān)控系統(tǒng)還可以與防盜報(bào)警系統(tǒng)，門(mén)禁系統(tǒng)等其它安全技術(shù)防范體系聯(lián)動(dòng)運(yùn)行，使其防范能力更加強(qiáng)大。紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售cctv監(jiān)控是閉路電視監(jiān)控系統(tǒng)，是一個(gè)跨行業(yè)的綜合性保安系統(tǒng)，是一種視頻監(jiān)控。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售,cctv監(jiān)控系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637423537835983343/1942194.png"></div><p style="text-indent:25px">軌道交通閉路電視監(jiān)視系統(tǒng)（CCTV）是保證城市軌道交通行車(chē)組織和安全的重要手段。閉路電視監(jiān)視系統(tǒng)給地鐵運(yùn)營(yíng)管理者、調(diào)度員和值班員提供一個(gè)直觀、實(shí)時(shí)、真實(shí)的現(xiàn)場(chǎng)圖像畫(huà)面。利用閉路電視監(jiān)視系統(tǒng)可監(jiān)視列車(chē)運(yùn)行、客流情況、變電所設(shè)備室設(shè)備運(yùn)行情況，是提高行車(chē)指揮透明度的輔助通信工具。閉路電視視頻監(jiān)控系統(tǒng)起到事先判斷分析、事后取證，是成為協(xié)助公共**門(mén)打擊犯罪和維持社會(huì)安定的重要手段。系統(tǒng)特點(diǎn)1.簡(jiǎn)潔架構(gòu)，信令業(yè)務(wù)分離：采用NGN架構(gòu)，將信令與業(yè)務(wù)承載碼流相分離，由網(wǎng)絡(luò)本身來(lái)承載業(yè)務(wù)碼流，視頻/數(shù)據(jù)管理服務(wù)器故障不會(huì)影響視頻存儲(chǔ)業(yè)務(wù)。2.端到端“0”瓶頸存儲(chǔ)，精度回看：端到端的iSCSI塊存儲(chǔ)，省去流媒體服務(wù)器群，簡(jiǎn)化架構(gòu)；精確到秒級(jí)的高效檢索，可以實(shí)現(xiàn)實(shí)時(shí)可以回放。</p><p style="text-indent:25px">CCTV監(jiān)控系統(tǒng)中硬盤(pán)錄像機(jī)的功能實(shí)現(xiàn)：基于PC插卡的硬盤(pán)錄像機(jī)。較早的硬盤(pán)錄像機(jī)是PC插卡型，視頻采集卡主要包括視頻信號(hào)的采集、數(shù)字視頻壓縮處理和視頻緩存等幾部分，其中數(shù)字視頻壓縮處理芯片有多種不同的類(lèi)型（通用DSP或**ASIC）。隨著CPU、內(nèi)存等中心芯片的不斷升級(jí)，計(jì)算機(jī)的主頻及綜合處理能力得到不斷提高，因而在單卡硬盤(pán)錄像機(jī)的基礎(chǔ)上進(jìn)一步出現(xiàn)了多卡多路硬盤(pán)錄像機(jī)，也即在PC的多個(gè)擴(kuò)充槽中同時(shí)插入多塊支持并行處理的單路視音頻采集卡，以實(shí)現(xiàn)多路視音頻信號(hào)的同時(shí)實(shí)時(shí)采集。由于每一塊卡*對(duì)應(yīng)于1路信號(hào)，因而采集卡的數(shù)量可根據(jù)視頻信號(hào)的路數(shù)要求而靈活配置。不過(guò)，當(dāng)在PC中插入多塊卡時(shí)，占用的PC資源也相應(yīng)增加，如CPU及內(nèi)存資源、主板上擴(kuò)充槽的數(shù)量、主板電源功率等。因此，當(dāng)攝像機(jī)源數(shù)量（即采集卡數(shù)量）較多時(shí)，這種硬盤(pán)錄像機(jī)就必須采用具有多插槽工控底板的工控機(jī)，并配以大功率電源，并且對(duì)CPU的主頻要求也更高。可以通過(guò)遙控?cái)z像機(jī)及其輔助設(shè)備（鏡頭、云臺(tái)等）直接觀看被監(jiān)視場(chǎng)所的一切情況。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售,cctv監(jiān)控系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/yiwanchuanbo/637423537811725520/2233451.png"></div><p style="text-indent:25px">高清網(wǎng)絡(luò)監(jiān)控系統(tǒng)如何選擇交換機(jī)：接入層交換機(jī)的選擇：條件 1、交換機(jī)的背板帶寬，如選擇 24 **換機(jī)，自帶二個(gè) 1000M 口，總共 26 口，則接入層的交換機(jī)背板帶寬要求為：(24*100M*2+1000*2*2)/1000=8.8Gbps 的背板帶寬。條件2、包轉(zhuǎn)發(fā)率：一個(gè) 1000M 口的包轉(zhuǎn)發(fā)率為 1.488Mpps/s, 則接入層的交換機(jī)交換速率為：(24*100M/1000M+2)*1.488=6.55Mpps/S 通常我們將滿(mǎn)足條件 1和 2的交換機(jī)稱(chēng)之為線速交換機(jī) ，如 H3C S1026T 就滿(mǎn)足線速交換能力，具有 24 個(gè)100M 端口，2 個(gè) 1000M 電口。根據(jù)以上條件得出：當(dāng)有 20 路 720P 攝像機(jī)接入一個(gè)交換機(jī)是，此交換機(jī)必須具有 1個(gè) 1000M 上傳口，20 個(gè)以上的 100M 接入端口。引入組播技術(shù)，避免多人調(diào)看時(shí)系統(tǒng)負(fù)擔(dān)，同時(shí)大量減少骨干網(wǎng)絡(luò)的帶寬占用。紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售</p><p style="text-indent:25px">監(jiān)控系統(tǒng)是由攝像、傳輸、控制、顯示、記錄登記5大部分組成。紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售</p><p style="text-indent:25px">CCTV監(jiān)控系統(tǒng)中硬盤(pán)錄像機(jī)的功能實(shí)現(xiàn)：為了解決多卡應(yīng)用的資源占用問(wèn)題，在單卡單路硬盤(pán)錄像機(jī)問(wèn)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(shí)實(shí)現(xiàn)對(duì)兩路信號(hào)或4路信號(hào)的實(shí)時(shí)采集與壓縮處理。這種結(jié)構(gòu)實(shí)際上是每路視頻信號(hào)地對(duì)應(yīng)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*占用一個(gè)PC插槽，加上視音頻信號(hào)的采集壓縮是由卡上的硬件來(lái)實(shí)現(xiàn)，因而有效地減少了硬盤(pán)錄像對(duì)PC資源的占用。還有一種與上述實(shí)現(xiàn)原理不盡相同的基于PC的單卡多路硬盤(pán)錄像機(jī)：卡上的一片視頻處理芯片就要處理多路輸入信號(hào)，因而需采用時(shí)分輪換方式對(duì)多路視頻信號(hào)進(jìn)行采集，并以M-JPEG壓縮格式進(jìn)行錄像。紹興船舶CCTV視頻監(jiān)控系統(tǒng)銷(xiāo)售</p><p style="text-indent:25px">上海翊皖船舶設(shè)備有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家服務(wù)型的公司。公司業(yè)務(wù)涵蓋主機(jī)遙控修理，監(jiān)測(cè)報(bào)警系統(tǒng)修理，船舶電機(jī)維修，閥門(mén)遙控修理等，價(jià)格合理，品質(zhì)有保證。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶(hù)提供良好的產(chǎn)品及服務(wù)。上海翊皖秉承“客戶(hù)為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3197060.html</p></div></div></div></div></div><div id="pixzwqw" class="page-right twoColRt"><div id="rg33oej" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rz8xwdp" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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