漢中高清防爆紅外攝像頭哪家好推薦咨詢深圳市容方電子供應(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="防爆攝像機安裝位置對光線的選擇：室內(nèi)安裝時從光源來看有順光、逆光、側(cè)光等幾種安裝位置。順光是指光線照射方向和監(jiān)控防爆攝像機的視場方向一致，人員正面受光均勻，無陰影，色彩還原比較正常。不過如光線過于強烈，會嚴重損失主體的表面層次。逆光與順光相"><meta name="keywords" content="漢中高清防爆紅外攝像頭哪家好,防爆"><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 http-equiv="Cache-Control" content="no-transform" /> <meta 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src="https://tyunfile.71360.com/UploadFile/RFDZ888/637303440267626953/9671551.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8amjqxw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/RFDZ888/637303440267626953/9671551.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jnkh7nk" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>漢中高清防爆紅外攝像頭哪家好,防爆</p><p><span>***更新：</span>2021-01-11 13:24:01</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="koqif8v" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市容方電子制造有限公司銷售</a></p><p><span>聯(lián)系人：</span>范烜晶</p><p><span>郵箱: </span></p><p><span>電話: </span>13509641599</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.szrongfang.com.cn</p><p><span>手機: </span>0755-33616813</p><p><span>地址: </span>布吉街道上水徑恒通工業(yè)城廠房4棟二樓202-1</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="fpme3ac" class="page-proshow02"><p class="title">詳細說明</p><div id="dcz8fh2" class="box"><p><p style="text-indent:25px">防爆攝像機安裝位置對光線的選擇：室內(nèi)安裝時從光源來看有順光、逆光、側(cè)光等幾種安裝位置。順光是指光線照射方向和監(jiān)控防爆攝像機的視場方向一致，人員正面受光均勻，無陰影，色彩還原比較正常。不過如光線過于強烈，會嚴重損失主體的表面層次。逆光與順光相反，光線的投射方向和監(jiān)控防爆攝像機拍攝方向相反，其主要造型特點是被攝人物主體正面受不到光線照明，主體正面的照度和背景及遠景照度相差較大，主體正面的細節(jié)完全損失，面部發(fā)黑，無法進行人像特征的識別。側(cè)光較為常見，室內(nèi)安裝時多數(shù)側(cè)光環(huán)境，漢中高清防爆紅外攝像頭哪家好。側(cè)光是光線的照射方向在人物主體的一側(cè)，這種光線使主體人物一半明亮，一半產(chǎn)生陰影，人物暗部層次會受損失，人物表面明暗對比強烈，色彩還原尚可，漢中高清防爆紅外攝像頭哪家好。室內(nèi)安裝時應(yīng)盡量避免選擇造成逆光出現(xiàn)的安裝位置，如無法回避可選用寬動態(tài)監(jiān)控防爆攝像機增加順光源。要注意強逆光時人像主體正面的照度和背景的照度對比遠遠大于現(xiàn)有任何寬動態(tài)監(jiān)控防爆攝像機的動態(tài)比，漢中高清防爆紅外攝像頭哪家好。多數(shù)寬動態(tài)監(jiān)控防爆攝像機技術(shù)的實現(xiàn)增強了面部的細節(jié)，但是無法比擬順光環(huán)境下的成像層次和細節(jié)。因此對這三種的選擇是非常重要的。架空敷設(shè)的電纜嚴禁使用金屬絲綁扎和受熱源影響，要使用絕緣子固定。漢中高清防爆紅外攝像頭哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="漢中高清防爆紅外攝像頭哪家好,防爆" src="https://tyunfile.71360.com/UploadFile/RFDZ888/637303440267626953/9671551.png"></div><p style="text-indent:25px">防爆攝像機解析度技術(shù)分析：我們通常所說的清晰度包括水平清晰度和垂直清晰度，圖像像素點的數(shù)目可以從這兩個指標得到。我們還是拿格子來說明，一幅圖像被分為很多行和很多列格子，同一行格子從左到右有多少像素點，稱為水平清晰度，同一列格子從上到下有多少像素點組成就稱為垂直清晰度。由于每一行格子形成垂直方向的一個像素，因此我們也可以講，“垂直清晰度”就是一幅圖像由多少條“水平掃描線”組成。一幅圖像有多少條水平掃描線是由信號格式?jīng)Q定的，因此只要信號格式確定了，垂直清晰度就確定了。深圳戶外防爆一體機防爆攝像頭的防護：對于模擬系統(tǒng)來說，其線路主要是傳輸信號線和電源線。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="漢中高清防爆紅外攝像頭哪家好,防爆" src="https://tyunfile.71360.com/UploadFile/RFDZ888/637303439452060547/8155738.png"></div><p style="text-indent:25px">防爆攝像機的結(jié)構(gòu)：近紅外指波長為0.75～3.0微米；中紅外指波長為3.0～20微米；遠紅外則指波長為20～1000微米。由于紅外光屬于非可見光，肉眼無法看見它在空間的存在，因此以一種能發(fā)射紅外光的LED二極管紅外燈主動發(fā)射紅外光的形式被大量使用于要求具有隱蔽性的夜視監(jiān)控中，代替?zhèn)鹘y(tǒng)隱蔽性低的照明燈夜視監(jiān)控。紅外燈有不同的功率及715、850nm兩種波長，波長的不同決定了紅外燈照距和效果。防爆紅外攝像機主要由紅外燈板、鏡頭及攝像主板，還有防爆護罩構(gòu)成。各構(gòu)成部分在防爆紅外攝像機工作過程中都擔(dān)負者重要的作用。</p><p style="text-indent:25px">防爆攝像機安防系統(tǒng)的未來發(fā)展趨勢：作為監(jiān)控攝像頭的重要組成部分，圖像傳感器的質(zhì)量直接影響較終圖像的顯示效果。CCD傳感器在過去監(jiān)控攝像機的應(yīng)用中占據(jù)主導(dǎo)地位，其具有的信噪比高、色彩還原能力強、通透感強、影響失真低等優(yōu)點，普遍的應(yīng)用與公共交通和金融領(lǐng)域。但隨著其技術(shù)難度大、成本高、功耗強也制約了其市場規(guī)模，逐漸走起了下坡路。而CMOS圖像傳感器憑借其低功耗、高集成度、速度快、低成本等優(yōu)勢，發(fā)展迅速，讓原本智能在低端監(jiān)控領(lǐng)域涉足的它，也逐漸向較高領(lǐng)域拓展。像素是組成圖像的基本單位，假若將圖像無限放大，你會發(fā)現(xiàn)整張圖像是由一個個小方點組成的，這些小點點就是像素。防爆攝像機維護：用無水酒精棉將各個鏡頭擦干凈，調(diào)整清晰度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="漢中高清防爆紅外攝像頭哪家好,防爆" src="https://tyunfile.71360.com/UploadFile/RFDZ888/637303439518349609/5351429.png"></div><p style="text-indent:25px">低照度防爆攝像機不借助輔助光源，憑著其自身感光性能和數(shù)字信號處理的優(yōu)勢，在光線極低的環(huán)境中完成監(jiān)控。低照度防爆攝像機器件品質(zhì)選擇要比普通防爆攝像機高，還會應(yīng)用一些獨特的技術(shù)來進一步提升低照度性能，深圳劉星解釋說：“的產(chǎn)品一般使用光學(xué)級大強度高透光超白防爆玻璃，這種玻璃的光通率高于96%，有利于光線的攝取，還有關(guān)鍵的機芯，選擇的SONY較高的CCD傳感器”。因此低照度防爆攝像機的成本較高。而防爆紅外攝像機是借助LED燈進行輔助照明，使其有充足的光照度完成監(jiān)控，所以其成本也相對比較低。在沒有特殊要求的夜視監(jiān)控場所下，一般選用成本相對較低的防爆紅外攝像機。但由于防爆紅外攝像機需要借助紅外燈進行輔助照明，在某些場合不適宜使用防爆紅外攝像機進行監(jiān)控，只能使用低照度防爆攝像機進行監(jiān)控。防爆紅外攝像機畫面不清晰的原因：電流不足原因?qū)е卵┗c產(chǎn)生。漢中高清防爆紅外攝像頭哪家好</p><p style="text-indent:25px">霧、霜的形成是由于空氣中的飽和水蒸氣遇冷凝結(jié)而成，因冷環(huán)境的強、弱分別凝結(jié)成霜和霧。漢中高清防爆紅外攝像頭哪家好</p><p style="text-indent:25px">防爆攝像頭的鏡頭：鏡頭是攝像機用來抓取畫面的工具，不同的鏡頭得到的畫面大小和效果也不一樣。常用的鏡頭種類包括：手動/自動光圈定焦鏡頭和自動光圈變焦鏡頭兩種。定焦鏡頭分為標準鏡頭和廣角鏡頭兩種。定焦鏡頭的適用范圍為：1.手動光圈鏡頭：所需監(jiān)視的環(huán)境照度變化不大，如室內(nèi)。2.自動光圈鏡頭：所需監(jiān)視的環(huán)境照度變化大，如室外。3.廣角鏡頭：監(jiān)視的角度較寬，距離較近。4.標準鏡頭：監(jiān)視的角度和距離適中。變焦鏡頭分為10倍、6倍和2倍變焦鏡頭，另一種分法是：手動變焦和電動變焦(電動光圈和自動光圈)兩種。變焦鏡頭在規(guī)則上可以劃分為：1/3〃、1/2〃和1〃等。選擇變焦鏡頭的原則是：鏡頭的規(guī)格不應(yīng)小于攝像機的規(guī)格，也就是說1/2〃的鏡頭可以與1/3〃的攝像機一起使用，但是1/3〃的鏡頭就不能夠在1/2〃的攝像機上使用。漢中高清防爆紅外攝像頭哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2801938.html</p></div></div></div></div></div><div id="hlif7rt" class="page-right twoColRt"><div id="shuwtau" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fpr7yqs" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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