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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="aewy3p8" class="twoCol"><div id="wkhjtuj" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jydq/">家用電器</a>?<a href="http://www.cdcfah.com/cp/second-jydq_dianshiji/">電視機(jī)</a>?<a href="http://www.cdcfah.com/cp/third-dianshiji_qtdsj/">其他電視機(jī)</a>?河南互動(dòng)電視系統(tǒng) 服務(wù)為先上海熊貝信息技術(shù)供應(yīng)</p><div id="qzbdam7" class="leftbox clearfix"><h1>河南互動(dòng)電視系統(tǒng) 服務(wù)為先上海熊貝信息技術(shù)供應(yīng)</h1><div id="8bdumtx" class="proBig"><div id="wld34df" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363915615235/5638387.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gkmg2ho" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363915615235/5638387.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bfh292v" 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>河南互動(dòng)電視系統(tǒng),電視系統(tǒng)工程</p><p><span>***更新：</span>2020-10-24 00:36:07</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="wqsmyas" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海熊貝信息技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>唐繼兵</p><p><span>郵箱: </span>tangjibing988428@163.com</p><p><span>電話: </span>19901672612</p><p><span>傳真: </span>199_</p><p><span>網(wǎng)址: </span>http://www.shxiongbei.com</p><p><span>手機(jī): </span>199-0167</p><p><span>地址: </span>青村鎮(zhèn)青村南路355號(hào)5幢135室</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="ospmeqs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="aognpby" class="box"><p><p style="text-indent:25px">有線電視系統(tǒng)工程的基礎(chǔ)知識(shí)：常用有線電視器材。1、電纜：型號(hào):常用電纜；75-5；75-7；75-9；75-12；發(fā)泡:單護(hù)發(fā)泡、雙護(hù)發(fā)泡；類型:發(fā)泡電纜、耦芯電纜、進(jìn)口電纜；特點(diǎn):頻率越高，損耗越多。2、放大器(高電平放大器、中電平放大器、低電平放大器)；A:高電平放大器用于天線放大器，用戶放大器，增益大在40dB以上，信噪比較差，輸入低60dB；特點(diǎn):低輸入，高輸出；B:中電平放大器用在支干線上，河南互動(dòng)電視系統(tǒng)，增益在25-30dB，如KA5134，信噪比較好。C:低電平放大器用在主干線上，河南互動(dòng)電視系統(tǒng)，河南互動(dòng)電視系統(tǒng)，增益在18-25dB，信噪比較好。電視系統(tǒng)工程可以采用糾錯(cuò)編碼技術(shù)提高電視機(jī)的抗噪聲干擾能力。河南互動(dòng)電視系統(tǒng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南互動(dòng)電視系統(tǒng),電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363915615235/5638387.png"></div><p style="text-indent:25px">有線電視系統(tǒng)工程的組成：（1）信號(hào)源和機(jī)房設(shè)備。有線電視節(jié)目來源包括衛(wèi)星地面站接收的模擬和數(shù)字電視信號(hào)，本地微波站發(fā)射的電視信號(hào)，本地電視臺(tái)發(fā)射的電視信號(hào)等。為實(shí)現(xiàn)信號(hào)源的播放，機(jī)房?jī)?nèi)應(yīng)有衛(wèi)星接收機(jī)、模擬和數(shù)字播放機(jī)、多功能控制臺(tái)、攝像機(jī)、特技圖文處理設(shè)備、編輯設(shè)備、視頻服務(wù)器，用戶管理控制設(shè)備等。（2）前端設(shè)備。前端設(shè)備是接在信號(hào)源與干線傳輸網(wǎng)絡(luò)之間的設(shè)備。它把接收來的電視信號(hào)進(jìn)行處理后，再把全部電視信號(hào)經(jīng)混合器混合，然后送入干線傳輸網(wǎng)絡(luò)，以實(shí)現(xiàn)多信號(hào)的單路傳輸。前端設(shè)備輸出信號(hào)頻率范圍可在5MHz—1GHz之間。前端輸出可接電纜干線，也可接光纜和微波干線。?河南互動(dòng)電視系統(tǒng)電視操作系統(tǒng)工程是全開放式平臺(tái)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南互動(dòng)電視系統(tǒng),電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364018642578/1274226.png"></div><p style="text-indent:25px">電視系統(tǒng)工程的采樣：將時(shí)間和幅度上連續(xù)的模擬信號(hào)轉(zhuǎn)變?yōu)闀r(shí)間離散的信號(hào)，即時(shí)間離散化。電視信號(hào)數(shù)字化采樣頻率的選擇首先應(yīng)滿足奈奎斯特抽樣定理，即取樣頻率必須大于信號(hào)帶寬的兩倍，才能從采樣信號(hào)中完全恢復(fù)原信號(hào)。對(duì)于數(shù)字分量編碼信號(hào)的采樣，CCIR601建議亮度采樣頻率為525/59.94和625/50兩大制式行頻的較小公倍數(shù)2.25MHz的6倍，即13.5MHz。對(duì)現(xiàn)行電視制式而言，亮度信號(hào)的較大帶寬是6MHz，13.5MHz>2×6MHz=12MHz，所以它符合奈奎斯特定理。而色差信號(hào)的帶寬比亮度信號(hào)窄得多，所以在分量編碼時(shí)兩個(gè)色差信號(hào)的取樣頻率可以低一些。</p><p style="text-indent:25px">醫(yī)院電視系統(tǒng)工程需求分析：為了保證醫(yī)療設(shè)備、病人及特種有效藥品的安全和電子手術(shù)教學(xué)以及醫(yī)院醫(yī)療信息化的需要，為了將現(xiàn)場(chǎng)作以必要的監(jiān)控和實(shí)時(shí)記錄，有一套實(shí)用、可靠、性能穩(wěn)定的閉路電視監(jiān)控系統(tǒng)具有相當(dāng)重要的意義。就其xx醫(yī)院的實(shí)際對(duì)監(jiān)控需求的具體情況，本著實(shí)用、可靠、結(jié)構(gòu)靈活可擴(kuò)展、性能價(jià)格比優(yōu)和全部方面實(shí)現(xiàn)醫(yī)院使用功能的原則，從實(shí)現(xiàn)方案的給出、設(shè)備的選型、主要設(shè)備的性能指標(biāo)、工程施工和施工后我們提供的服務(wù)全方面，給出以下詳盡的工程說明。電視系統(tǒng)工程智能化要實(shí)現(xiàn)的前提就是要有強(qiáng)大的智能化操作系統(tǒng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南互動(dòng)電視系統(tǒng),電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364420468750/3246034.png"></div><p style="text-indent:25px">智能電視系統(tǒng)工程的特點(diǎn)：1.智能：讓普通電視像智能手機(jī)一樣，具有全開放式平臺(tái)，搭載暗咒操作系統(tǒng)，可以自由安裝和卸載軟件，游戲等，通過此類程序來不斷對(duì)電視機(jī)的功能進(jìn)行擴(kuò)充，并可以通過網(wǎng)絡(luò)來實(shí)現(xiàn)網(wǎng)上沖浪。2.健康：智能電視系統(tǒng)提供了一種全新的客廳文化，把電腦移植到客廳的高清電視機(jī)上，超大屏幕高清液晶電視機(jī)在客廳里實(shí)現(xiàn)一切電腦的功能，再配上智能飛控就可以躺在沙發(fā)上暢游網(wǎng)絡(luò)，形成一種后仰文化，遠(yuǎn)離電腦的復(fù)雜和病du的侵?jǐn)_，遠(yuǎn)離各種輻射和長(zhǎng)時(shí)間前傾彎腰，操作電腦引發(fā)的各種疾病。智能電視系統(tǒng)工程能夠滿足用戶多樣化和個(gè)性化需求的電視產(chǎn)品。河南互動(dòng)電視系統(tǒng)</p><p style="text-indent:25px">電視系統(tǒng)工程的發(fā)展對(duì)整個(gè)社會(huì)產(chǎn)生較為深刻的影響。河南互動(dòng)電視系統(tǒng)</p><p style="text-indent:25px">有線電視系統(tǒng)工程的優(yōu)點(diǎn)：（1）收視節(jié)目多，圖像質(zhì)量好。在有線電視系統(tǒng)中可以收視當(dāng)?shù)仉娨暸_(tái)開路發(fā)送的電視節(jié)目，他們包括VHF和UHF各個(gè)頻道的節(jié)目。有線電視采用高質(zhì)量信號(hào)源，保證信號(hào)的高水平，因?yàn)橛秒娎|或光纜傳送，避免了開路發(fā)射的重影和空間雜波干擾等問題。（2）有線電視系統(tǒng)可以收視衛(wèi)星上發(fā)送的我國(guó)以及國(guó)外C波段及ku波段電視頻道的節(jié)目。（3）有線電視系統(tǒng)可以收視當(dāng)?shù)赜芯€電視臺(tái)（或企業(yè)有線電視臺(tái)）發(fā)送的閉路電視。閉路電視可以播放不錯(cuò)的影視片，也可以是自制的電視節(jié)目。河南互動(dòng)電視系統(tǒng)</p><p style="text-indent:25px">上海熊貝信息技術(shù)有限公司位于青村鎮(zhèn)青村南路355號(hào)5幢135室，交通便利，環(huán)境優(yōu)美，是一家服務(wù)型企業(yè)。公司是一家有限責(zé)任公司（自然）企業(yè)，以誠(chéng)信務(wù)實(shí)的創(chuàng)業(yè)精神、專業(yè)的管理團(tuán)隊(duì)、踏實(shí)的職工隊(duì)伍，努力為廣大用戶提供***的產(chǎn)品。公司業(yè)務(wù)涵蓋IPTV電視系統(tǒng)，監(jiān)控系統(tǒng)，弱電工程，，價(jià)格合理，品質(zhì)有保證，深受廣大客戶的歡迎。上海熊貝以創(chuàng)造***產(chǎn)品及服務(wù)的理念，打造高指標(biāo)的服務(wù)，引導(dǎo)行業(yè)的發(fā)展。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1679124.html</p></div></div></div></div></div><div id="bf8krtv" class="page-right twoColRt"><div 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