蘇州工業(yè)監(jiān)控攝像頭價格無錫漣源信息技術(shù)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="監(jiān)控攝像頭相當(dāng)于一個什么鏡，蘇州工業(yè)監(jiān)控攝像頭價格，原理是什么？監(jiān)控攝像頭相當(dāng)于一個凸透鏡。因為其攝像頭就是由一組透鏡組成的，蘇州工業(yè)監(jiān)控攝像頭價格，其作bai用與凸透鏡一樣，是讓遠(yuǎn)處物體（2倍焦距以外）經(jīng)鏡頭后成像在傳感器上（縮小倒立的實"><meta name="keywords" content="蘇州工業(yè)監(jiān)控攝像頭價格,監(jiān)控攝像頭"><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 name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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id="ve9dfmj" class="leftbox clearfix"><h1>蘇州工業(yè)監(jiān)控攝像頭價格無錫漣源信息技術(shù)供應(yīng)</h1><div id="7u2asz8" class="proBig"><div id="uyxpm3f" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxlianyuan/637363064379023437/3699090.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="5oifcgp" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxlianyuan/637363064379023437/3699090.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8seb33i" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蘇州工業(yè)監(jiān)控攝像頭價格,監(jiān)控攝像頭</p><p><span>***更新：</span>2020-12-29 07:13:03</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="m7vifsf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫漣源信息技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>馮鍇</p><p><span>郵箱: </span>fengkai@wxlyit.com</p><p><span>電話: </span>17714552857</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span>http://wxlyit.com</p><p><span>手機(jī): </span>0510-83705180</p><p><span>地址: </span>會西路30-23號3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="gnb37qf" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2modoyp" class="box"><p><p style="text-indent:25px">監(jiān)控攝像頭相當(dāng)于一個什么鏡，蘇州工業(yè)監(jiān)控攝像頭價格，原理是什么？監(jiān)控攝像頭相當(dāng)于一個凸透鏡。因為其攝像頭就是由一組透鏡組成的，蘇州工業(yè)監(jiān)控攝像頭價格，其作bai用與凸透鏡一樣，是讓遠(yuǎn)處物體（2倍焦距以外）經(jīng)鏡頭后成像在傳感器上（縮小倒立的實像）。攝像頭的工作原理大致為：景物通過鏡頭(LENS)生成的光學(xué)圖像投射到圖像傳感器表面上，然后轉(zhuǎn)為電信號，蘇州工業(yè)監(jiān)控攝像頭價格，經(jīng)過A/D(模數(shù)轉(zhuǎn)換)轉(zhuǎn)換后變?yōu)閿?shù)字圖像信號，再送到數(shù)字信號處理芯片(DSP)中加工處理，再通過USB接口傳輸?shù)诫娔X中處理，通過顯示器就可以看到圖像了。監(jiān)控設(shè)備的選擇可以根據(jù)你的預(yù)算來制定。蘇州工業(yè)監(jiān)控攝像頭價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州工業(yè)監(jiān)控攝像頭價格,監(jiān)控攝像頭" src="https://tyunfile.71360.com/UploadFile/wxlianyuan/637363064379023437/3699090.png"></div><p style="text-indent:25px">監(jiān)控攝像頭相關(guān)名詞解釋 (1)分辨率:監(jiān)控攝像頭使用中的分辨率指的是屏幕水平方向和垂直方向所顯示的點數(shù)。分辨率越高的監(jiān)控攝像頭，拍攝出的圖像就越清晰。 (2)清晰度:監(jiān)控攝像頭的清晰度用線來表示，分為水平線和垂直線，線數(shù)越多，清晰度越高，成像就越清晰。 (3)信噪比:指的是監(jiān)控攝像頭中信號電頻與雜波電頻之比，常用DB來表示。信噪比越高監(jiān)控攝像頭越好，圖像信號越好，即圖像越清晰。 (4)白平衡:白平衡是描述顯示器中紅、綠、藍(lán)三基色混合生成后白色精確度的一項指標(biāo)。通過調(diào)整監(jiān)控攝像頭內(nèi)攝像機(jī)的白平衡，可以提高畫面色彩質(zhì)量。(5)背光補(bǔ)償:當(dāng)攝像機(jī)處于逆光環(huán)境中拍攝時，畫面會出現(xiàn)黑色的圖像。這對于24小時工作的監(jiān)控攝像機(jī)是不能存在的弊端，這時就需要背光補(bǔ)償。當(dāng)具備了背光補(bǔ)償功能時，攝像機(jī)如果檢測到拍攝圖像一個區(qū)域中的視頻電平比較低，就會提高輸出視頻信號的幅值，使圖像清晰。蘇州工業(yè)監(jiān)控攝像頭哪家便宜監(jiān)控攝像頭監(jiān)控攝像頭是一種半導(dǎo)體成像器件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州工業(yè)監(jiān)控攝像頭價格,監(jiān)控攝像頭" src="https://tyunfile.71360.com/UploadFile/wxlianyuan/637363064311621094/8717197.png"></div><p style="text-indent:25px">對于監(jiān)控攝像頭，很多人即熟悉又陌生。下面我們就來了解一下它的工作原理。監(jiān)控攝像頭是一種把景物光像轉(zhuǎn)變?yōu)殡娦盘柕难b置。其結(jié)構(gòu)大致可分為三部分：光學(xué)系統(tǒng)（主要指鏡頭）、光電轉(zhuǎn)換系統(tǒng)（主要指攝像管或固體攝像器件）以及電路系統(tǒng)（主要指視頻處理電路）。光學(xué)系統(tǒng)的主要部件是光學(xué)鏡頭，它由透鏡系統(tǒng)組合而成。這個透鏡系統(tǒng)包含著許多片凸凹不同的透鏡，其中凸透鏡的中部比邊緣厚，因而透鏡邊緣部分的光線比**部分的光線會發(fā)生更多的折射。當(dāng)被攝對象經(jīng)過光學(xué)系統(tǒng)透鏡的折射，在光電轉(zhuǎn)換系統(tǒng)的攝像管或固體攝像器件的成像面上形成“焦點”。光電轉(zhuǎn)換系統(tǒng)中的光敏原件會把“焦點”外的光學(xué)圖像轉(zhuǎn)變成攜帶電荷的電信號。這些電信號的作用是微弱的，必須經(jīng)過電路系統(tǒng)進(jìn)一步放大，形成符合特定技術(shù)要求的信號，并從攝像機(jī)中輸出。 </p><p style="text-indent:25px">監(jiān)控攝像頭的安裝：成功訪問攝像機(jī)后首先會出現(xiàn)登錄頁面，輸入用戶名和密碼(默認(rèn)的用戶名和密碼都是admin)在語言欄處可選擇中文或英文版本選項，在頁面單擊鏈接“下載播放器”下載播放器或者登陸成功后，點擊頁面右上方鏈接“下載播放器”下載。下載路徑設(shè)置在系統(tǒng)盤。設(shè)置視頻碼率：碼流數(shù)據(jù)傳輸?shù)妮^大值，比如2048KBps等于每秒傳輸2MBps的圖像數(shù)據(jù)大小，等于每秒較大存儲256Kb的數(shù)據(jù)文件在電腦上，可以計算出在2048KBps的碼率下一臺攝像機(jī)一個小時的錄像大小較大是0.9Gb。使用云臺來安裝和固定監(jiān)控攝像頭，以便進(jìn)行旋轉(zhuǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州工業(yè)監(jiān)控攝像頭價格,監(jiān)控攝像頭" src="https://tyunfile.71360.com/UploadFile/wxlianyuan/637363064301201172/9335938.png"></div><p style="text-indent:25px">監(jiān)控攝像頭的焦距選擇鏡頭一個要注意的是鏡頭的焦距，焦距實際上就是視角問題，焦距不同視角也不同。另外用戶自己要明確，我購買鏡頭的主要目的是什么?是為拍風(fēng)景還是拍人物等等。眾所周知，拍風(fēng)景宜用廣角鏡頭，而拍人物則宜用望遠(yuǎn)鏡頭，所以首先要根據(jù)攝影目的來決定自己所要選購的鏡頭焦距。拍攝風(fēng)景較佳焦段是廣角焦段24mm、望遠(yuǎn)焦段200mm(均以35mm規(guī)格為標(biāo)準(zhǔn)，下同)。當(dāng)標(biāo)準(zhǔn)變焦鏡頭廣角焦段從28mm進(jìn)化到24mm后視角變大，可收納的景物范圍較大拓寬。如果主要是拍風(fēng)景的話，選擇變焦鏡頭時廣角焦段是24mm基本就夠用了。蘇州室外監(jiān)控攝像頭供應(yīng)商</p><p style="text-indent:25px">監(jiān)控攝像頭的圖像傳輸使用較普遍的傳輸方式是通過模擬攝像機(jī)實現(xiàn)傳輸。蘇州工業(yè)監(jiān)控攝像頭價格</p><p style="text-indent:25px">網(wǎng)絡(luò)監(jiān)控攝像頭A/D轉(zhuǎn)換器A/D轉(zhuǎn)換器的功能是將圖像和聲音等模擬信號轉(zhuǎn)換成數(shù)字信號?；贑MOS模式的圖像傳感器模塊有直接數(shù)字信號輸出的接口，無須A/D轉(zhuǎn)換器。而基于CCD模式的圖像傳感器模塊如有直接數(shù)字輸出的接口，亦無須A/D轉(zhuǎn)換器，但由于此模塊主要針對模擬攝像機(jī)設(shè)計，只有模擬輸出接口，故需要進(jìn)行A/D轉(zhuǎn)換。圖像聲音編碼器經(jīng)A/D轉(zhuǎn)換后的圖像、聲音數(shù)字信號，按一定的格式或標(biāo)準(zhǔn)進(jìn)行編碼壓縮。編碼壓縮的目的是為了便于實現(xiàn)音/視信號與多媒體信號的數(shù)字化;便于在計算機(jī)系統(tǒng)、網(wǎng)絡(luò)以及萬維網(wǎng)上不失真地傳輸上述信號。蘇州工業(yè)監(jiān)控攝像頭價格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2613104.html</p></div></div></div></div></div><div id="ynfm3d3" class="page-right twoColRt"><div id="ae3jbik" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="i2nzbif" 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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