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href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/second-txcp_csjhsb/">傳輸、交換設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-csjhsb_gdjlh/">光端機</a>?河南視頻光端機廠家工業(yè)交換機煙臺市正維通信技術(shù)供應(yīng)</p><div id="bz39h79" class="leftbox clearfix"><h1>河南視頻光端機廠家工業(yè)交換機煙臺市正維通信技術(shù)供應(yīng)</h1><div id="xnpnlfj" class="proBig"><div id="vz5lbp3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469286813163777/4226115.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pb7j77z" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469286813163777/4226115.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="15x1zff" 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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河南視頻光端機廠家,光端機</p><p><span>***更新：</span>2021-01-31 06:22:41</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="h5xbbht" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">煙臺市正維通信技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>程雷</p><p><span>郵箱: </span>zhengwei@zhengwei-teah.cn</p><p><span>電話: </span>18766381696</p><p><span>傳真: </span>0535_</p><p><span>網(wǎng)址: </span>http://www.zwkj.net.cn</p><p><span>手機: </span>0535-3975176</p><p><span>地址: </span>中國(山東)自由貿(mào)易試驗區(qū)煙臺片區(qū)煙臺開發(fā)區(qū)珠江路42號</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="rxb5rtv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="nnpdzjl" class="box"><p><p style="text-indent:25px">光端機在廣電傳輸中的多種應(yīng)用隨著大通信時代的不斷發(fā)展，廣播電視從模擬向數(shù)字的過渡，數(shù)字化帶給大眾的感受是節(jié)目質(zhì)量提高、節(jié)目更加豐富多彩?，F(xiàn)在，人們對電視節(jié)目的需求日益提高，不只是收到電視信號就可以了，還要求完美的畫面和逼真的聲音。這個時候光端機就在這里發(fā)揮重大作用了！因此，河南視頻光端機廠家，先進的拍攝數(shù)字化設(shè)備固然重要，河南視頻光端機廠家，但是傳輸設(shè)備對信號起著重大重要，也就是不解決傳輸設(shè)備對信號滯后的這個問題，河南視頻光端機廠家，那么問題就嚴(yán)重了，所以光端機用途的起著非常重要作用總得來說，市級電視臺采用模擬設(shè)備進行傳輸，由于元器件的老化而使設(shè)備的不穩(wěn)定因素明顯增加，經(jīng)常造成傳輸中斷，嚴(yán)重影響信號的正常傳輸及質(zhì)量。所以，在充分考慮設(shè)備先進性、兼容性、整體配套性的基礎(chǔ)上，信號傳輸系統(tǒng)采取以數(shù)字設(shè)備為主，將具有使用模擬設(shè)備所無法比擬的優(yōu)勢。光端機的使用中要運行監(jiān)測與記錄。河南視頻光端機廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南視頻光端機廠家,光端機" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469286813163777/4226115.png"></div><p style="text-indent:25px">光端機在廣電傳輸中的多種應(yīng)用傳輸設(shè)備傳輸設(shè)備以SDI光端機為主，根據(jù)實際情況選用數(shù)字方式傳輸?shù)囊?音頻光端機。通過SDI平臺傳送數(shù)字信號，與模擬信號以行同步前沿為基準(zhǔn)不同，它是以串行數(shù)據(jù)流中的時鐘周期為基準(zhǔn)，同步鎖相也是與時鐘進行鎖定。這樣，只要接收機能夠鎖定輸入信號，則可以恢復(fù)信號。現(xiàn)場直播在電視現(xiàn)場直播中，采用數(shù)字傳輸一般可分為兩種方式。第一種是前端錄制、傳輸及后期制作全部采用數(shù)字設(shè)備。第二種是前端錄制采用模擬方式，中間采用數(shù)字傳輸方式以減小傳輸過程中信號損耗，后期制作視自身情況采用數(shù)字或者模擬方式。以上是光端機的多種應(yīng)用等等，希望可以讓大家對光端機有更生的了解。浙江高清光端機與光纖收發(fā)器區(qū)別光纖中只有"有光"和"無光"兩種狀態(tài)，對光源線性要求不高或幾乎沒有要求，避免了信號在處理過程中的損失。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南視頻光端機廠家,光端機" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288899057030/8487397.png"></div><p style="text-indent:25px">光纖收發(fā)器與光端機的區(qū)別是什么？相同之處：都要進行光電轉(zhuǎn)換。不同之處：收發(fā)器只是進行光電轉(zhuǎn)換，不改變編碼，不對數(shù)據(jù)作其他處理，收發(fā)器是針對以太網(wǎng)來說，跑802.3協(xié)議，只用于點對點的連接。光端機，除了光電轉(zhuǎn)換的工作以外，還要對數(shù)據(jù)信號進行復(fù)用和解復(fù)用。通常光端機出來的是對E1線路，SDH，PDH光端機主要用于電信運營商，用于提供多點到點的數(shù)據(jù)電路；視頻光端機主要用于安防監(jiān)控，遠程教育，視頻會議等對視頻傳輸要求適時比較高的領(lǐng)域，同時可以傳輸控制，開關(guān)量，語言，以太網(wǎng)等信號來滿足多業(yè)務(wù)應(yīng)用需求，所以我們有時候也將其稱為綜合光端機。</p><p style="text-indent:25px">模擬光端機與數(shù)字光端機處理方式的不同，引起的視頻、音頻、數(shù)據(jù)信號信號失真、變畸變、干擾不同。模擬光端機由于要進行調(diào)幅、調(diào)頻、調(diào)相，所以模擬信號的幅度的變化與載波信號因調(diào)制而引起的幅度變化是否為一一對應(yīng)的線形關(guān)系成為擬光端機質(zhì)量好壞的關(guān)鍵，到目前為止，很難做到真正線性調(diào)制，非線形必同時調(diào)制好的載波信號還要調(diào)制光信號，光信號的非線性也是一個非常重要的因素，眾所周知，光器件的非線性工作電壓的穩(wěn)定性、光發(fā)射功率有很大的影響，因此光器件在生產(chǎn)時需進行7-10天的熱循環(huán)老化等等工藝選只能做到將這種變換控制在一定的范圍；光信號在光纖中長距離傳輸，會引起光信號的功率衰減，傳輸頻率漂移信號色散效應(yīng)同樣也會引起光信號畸變；光信號到達接收端，接收光器件仍然要引起非線性失真，由光電轉(zhuǎn)換后解調(diào)，解調(diào)與調(diào)制一樣會產(chǎn)生非線性畸變。所以綜合模擬光端機，從輸入信號調(diào)制-電光轉(zhuǎn)換-光輸出-光電轉(zhuǎn)換-都會引起非線形失真，而這些信號畸變失真是固有的，所以也必然是不可消除的，因此模擬光端機傳輸視頻圖象據(jù)的效果很難達到很滿意的效果。數(shù)字式光端機只是只有模數(shù)轉(zhuǎn)換的量化誤差(如1V視頻信號12bits時只是為2起信號畸變。數(shù)字光端機傳輸距離較長:可達80Km，甚至更遠(120Km)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南視頻光端機廠家,光端機" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287259766811/5815066.png"></div><p style="text-indent:25px">光端機在安防領(lǐng)域有著重要的地位光端機在目前安防系統(tǒng)中扮演的是傳輸數(shù)據(jù)的角色，占據(jù)安防領(lǐng)域中重要的地位，他解決遠距離傳輸和大容量傳輸。因為前端攝像頭等采集源的接口不同，光端機必須成對使用，一個光端機把前端的輸入信號轉(zhuǎn)換成光信號，另一個光端機再把光信號還原成輸入信號送給終端。這也意味著在安防施工的過程中，針對每一個布點線路我們都必須配用一對光端機。在安防解決方案中，各個方向的布點數(shù)據(jù)，都會匯集到監(jiān)控中心，如果我們能對光端機進行整合，在光端機的設(shè)計中也引入交換機的概念，采用一個多路光端機來接入來自不同布點線路的光信號，我們就可以省去一半數(shù)量的光端機，對大型項目來說可以大量節(jié)約成本。這種集中管理的方式這有別于一般的多模光端機，多模形式在視頻圖像傳輸時，帶寬(針對模擬調(diào)制)和傳輸速率(針對數(shù)字式)有較大的限制，特別是因色散的影響明顯限制了采用高速率傳輸?shù)姆菈嚎s數(shù)字光端機在傳輸距離、容量方面的應(yīng)用。視頻光端機又分為模擬光端機和數(shù)字光端機。浙江高清光端機與光纖收發(fā)器區(qū)別</p><p style="text-indent:25px">光端機的激光器組件和光電轉(zhuǎn)換模塊忌瞬時脈沖電流的沖擊，因此不宜頻繁開關(guān)機。河南視頻光端機廠家</p><p style="text-indent:25px">光端機要一對嘛? 總會有新客戶問光端機要一對的嗎？對的，其實光端機是成對使用的。光端機是用在以光纖作為載體的光、電傳換器。發(fā)送端和接收端必須是同一種設(shè)備。為什么要成對使用呢？簡單說光端機是光信號傳輸?shù)慕K端設(shè)備，其實光端機是一個延長數(shù)據(jù)傳輸?shù)墓饫w通信設(shè)備。光端機一般都是成對使用，分為光發(fā)射機和光接收機。光發(fā)射機完成電光轉(zhuǎn)換，并把光信號發(fā)射出去用于光纖傳輸。光接收機主要是把從光纖接收的光信號再還原為電信號，完成光電轉(zhuǎn)換。所以一般光端機是成對使用的。光端機很多類型：PDH光端機、電話光端機、SDH光端機、SPDH光端機、視頻光端機、以太網(wǎng)光端機、音頻光端機、數(shù)據(jù)光端機、VGA/HDMI光端機、HD-SDI光端機。光端機作用就是用于遠程傳輸數(shù)據(jù)，將音視頻進行遠距離傳輸，具有傳輸距離遠，無延遲、無干擾等優(yōu)點。河南視頻光端機廠家</p><p style="text-indent:25px">煙臺市正維通信技術(shù)有限公司總部位于中國(山東)自由貿(mào)易試驗區(qū)煙臺片區(qū)煙臺開發(fā)區(qū)珠江路42號，是一家目前正維通信的用戶已遍布電力、煤礦、軌道交通、高速公路、鋼鐵冶金、石油化工、城市智能交通、水處理等行業(yè)，正維通信通過覆蓋國內(nèi)30個省、市、自治區(qū)的銷售機構(gòu)和數(shù)十個重要的合作伙伴，使迅速響應(yīng)用戶需求成為現(xiàn)實，向客戶提供完善的售前支持和貼心的售后服務(wù)。的公司。煙臺正維通信技術(shù)作為目前正維通信的用戶已遍布電力、煤礦、軌道交通、高速公路、鋼鐵冶金、石油化工、城市智能交通、水處理等行業(yè)，正維通信通過覆蓋國內(nèi)30個省、市、自治區(qū)的銷售機構(gòu)和數(shù)十個重要的合作伙伴，使迅速響應(yīng)用戶需求成為現(xiàn)實，向客戶提供完善的售前支持和貼心的售后服務(wù)。的企業(yè)之一，為客戶提供良好的工業(yè)交換機，以太網(wǎng)交換機，環(huán)網(wǎng)交換機，光纖收發(fā)器。煙臺正維通信技術(shù)致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。煙臺正維通信技術(shù)創(chuàng)始人程雷，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3091578.html</p></div></div></div></div></div><div id="bvzrrh9" class="page-right twoColRt"><div id="h1tpbnv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="p9b33f1" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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