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src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725433105195/9622582.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="efrtac8" 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>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>武漢安防監(jiān)控開關(guān)電源多少錢,安防</p><p><span>***更新：</span>2021-02-05 00:19:04</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qfsumtq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機(jī): </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號(hào)德泰工業(yè)區(qū)1號(hào)廠房4層402</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="k2hgdvx" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="m4aczli" class="box"><p><p style="text-indent:25px">監(jiān)控?cái)z像機(jī)電源功率配置的技術(shù)問題：監(jiān)控?cái)z像機(jī)一般都會(huì)表明DC12V/AC24V通用，因此，在現(xiàn)在比較的常用的PoE供電、集中供電和自立供電三種供電方式下，需要選擇AC 24V的監(jiān)控電源，因?yàn)橥瑯拥膫鬏斁嚯x，電壓越高，損耗越小。電壓高了，負(fù)載就能得到比較充足的電壓。電源選擇容易，武漢安防監(jiān)控開關(guān)電源多少錢，但是并不是所有的電壓都是穩(wěn)定的，因此，如何合理配置整個(gè)監(jiān)控系統(tǒng)的監(jiān)控?cái)z像機(jī)電源功率就成為了很多年輕沒有經(jīng)驗(yàn)的工程師為難了，而很多方案在實(shí)施的時(shí)候都發(fā)現(xiàn)當(dāng)初設(shè)計(jì)的電源容量不夠，需要追加設(shè)備，造成和甲方扯皮現(xiàn)象。實(shí)際上，由于攝像機(jī)在啟動(dòng)瞬間，啟動(dòng)電流很大，再加上工程上遠(yuǎn)距離傳輸?shù)膿p耗，所以，武漢安防監(jiān)控開關(guān)電源多少錢，監(jiān)控?cái)z像機(jī)需要的電源，不是簡(jiǎn)單地把所有攝像機(jī)的額定功率相加，武漢安防監(jiān)控開關(guān)電源多少錢。普通電源對(duì)于電源的適應(yīng)能力相對(duì)較弱，適合那些電源電壓穩(wěn)定的地方。武漢安防監(jiān)控開關(guān)電源多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢安防監(jiān)控開關(guān)電源多少錢,安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725433105195/9622582.png"></div><p style="text-indent:25px">視頻門禁電源選擇的重要性：毫無疑問，電源是保障整個(gè)視頻門禁系統(tǒng)穩(wěn)定運(yùn)行的基礎(chǔ)，對(duì)于電源選擇的好壞可以直接決定到工程商在實(shí)施此項(xiàng)目的時(shí)候是否能賺取到盡可能多的利潤(rùn)，同時(shí)從電源的選擇上面也可以反映出工程商本身對(duì)于工程質(zhì)量的把控能力。很遺憾，筆者在調(diào)研整個(gè)視頻門禁的宏觀市場(chǎng)的時(shí)候發(fā)現(xiàn)，90以上的系統(tǒng)故障是因?yàn)殡娫吹倪x擇不當(dāng)引起的，有些故障可能已經(jīng)影響到了該項(xiàng)目的順利推廣。綜合看來，因?yàn)殡娫炊l(fā)的故障主要表現(xiàn)在如下幾個(gè)方面：①使用一段時(shí)間后，出現(xiàn)供電不足的故障現(xiàn)象。②雷雨天之后，出現(xiàn)規(guī)模性電源故障。③天氣炎熱和寒冷出現(xiàn)電源故障。④蓄電池經(jīng)常壞，也沒有起到斷電維持系統(tǒng)正常運(yùn)行的能力。⑤線路短路導(dǎo)致電源被燒壞。⑥用電高峰期，出現(xiàn)電源供電不足問題。廣州安防集中電源銷售檢修簡(jiǎn)單，更換電源簡(jiǎn)易因?yàn)槊總€(gè)攝像機(jī)都有自立的安防監(jiān)控電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢安防監(jiān)控開關(guān)電源多少錢,安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725445175500/4580146.png"></div><p style="text-indent:25px">開關(guān)電源和普通的電源有什么區(qū)別：普通的電源一般是線性電源,線性電源，是指調(diào)整管工作在線性狀態(tài)下的電源.而在開關(guān)電源中則不一樣，開關(guān)管（在開關(guān)電源中，我們一般把調(diào)整管叫做開關(guān)管）是工作在開、關(guān)兩種狀態(tài)下的：開——電阻很??；關(guān)——電阻很大。開關(guān)電源是一種比較新型的電源。它具有效率高，重量輕，可升、降壓，輸出功率大等優(yōu)點(diǎn)。但是由于電路工作在開關(guān)狀態(tài)，所以噪聲比較大。通過下圖，我們來簡(jiǎn)單的說說降壓型開關(guān)電源的工作原理。如圖所示，電路由開關(guān)K（實(shí)際電路中為三極管或者場(chǎng)效應(yīng)管），續(xù)流二極管D，儲(chǔ)能電感L，濾波電容C等構(gòu)成。當(dāng)開關(guān)閉合時(shí)，電源通過開關(guān)K、電感L給負(fù)載供電，并將部分電能儲(chǔ)存在電感L以及電容C中。</p><p style="text-indent:25px">UPS(不間斷電源)的工作原理：后備式UPS電源在市電正常供電時(shí)，市電通過交流旁路通道經(jīng)轉(zhuǎn)換開關(guān)直接向負(fù)載提供電源，UPS電源內(nèi)的逆變器處于停止工作狀態(tài)，這時(shí)的UPS電源實(shí)質(zhì)上相當(dāng)于一臺(tái)性能單一的市電穩(wěn)壓器。它除了對(duì)市電電壓的幅度波動(dòng)有所改善外，對(duì)電壓的頻率不穩(wěn)、波形畸變以及從電網(wǎng)侵入的*等不良影響基本上沒有任何改善。只有當(dāng)市電供電中斷或低于170伏時(shí)，蓄電池才立刻對(duì)逆變器供電，向負(fù)載提供穩(wěn)壓、穩(wěn)頻的方波交流電源。正常工作一段時(shí)間，這就需要啟用備用電源來維持這段時(shí)間監(jiān)控系統(tǒng)的正常工作。備用電源有雙路或多路供電、蓄電池組供電、發(fā)電機(jī)供電、UPS供電等等。但通常采用UPS不間斷電源作為安防監(jiān)控系統(tǒng)備用電源。避免出現(xiàn)監(jiān)控系統(tǒng)癱瘓現(xiàn)象用UPS，將會(huì)導(dǎo)致整個(gè)監(jiān)控系統(tǒng)無法正常工作，陷入癱瘓狀態(tài)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢安防監(jiān)控開關(guān)電源多少錢,安防" src="https://tyunfile.71360.com/UploadFile/baoyixinneng/637441725389540717/2945405.png"></div><p style="text-indent:25px">安防監(jiān)控電源幾中供電方式的選擇：自立供電模式什么是自立供電自立供電是指在每個(gè)攝像機(jī)前端安裝自立的安防監(jiān)控電源，此安防監(jiān)控電源只為一個(gè)攝像機(jī)提供電力供應(yīng)。自立供電的好1、檢修簡(jiǎn)單，更換電源簡(jiǎn)易因?yàn)槊總€(gè)攝像機(jī)都有自立的安防監(jiān)控電源，在攝像機(jī)出現(xiàn)故障的時(shí)候，可以迅速就出現(xiàn)故障的攝像機(jī)進(jìn)行故障排查。若檢查出因安防監(jiān)控電源引起的故障，*需對(duì)單個(gè)故障電源進(jìn)行修理貨更換。2、避免出現(xiàn)監(jiān)控系統(tǒng)癱瘓現(xiàn)象用UPS，將會(huì)導(dǎo)致整個(gè)監(jiān)控系統(tǒng)無法正常工作，陷入癱瘓狀態(tài)。而在自立供電模式下，因安防監(jiān)控電源的故障，而導(dǎo)致單個(gè)或數(shù)個(gè)攝像機(jī)無法工作，避免出現(xiàn)監(jiān)控系統(tǒng)癱瘓現(xiàn)象。自立供電的不足1、成本過高多個(gè)自立安防監(jiān)控電源的成本之和，一般要比同等功率輸出的集中電源要高。此成本，不將線纜成本計(jì)算在內(nèi)。2、遭遇外力破壞的幾率更高因?yàn)樽粤卜辣O(jiān)控電源往往與攝像機(jī)距離較近，若是在室外條件下，更容易遭受日曬雨淋、雷擊等外力破壞因素的影響。因此選擇戶外**的自立安防監(jiān)控電源，尤其要注重該自立安防監(jiān)控電源的防護(hù)性能。濾波效率大為提高,濾波電容的容量和體積大為減小。武漢安防監(jiān)控開關(guān)電源多少錢</p><p style="text-indent:25px">安防電源怎樣維修安防電源其實(shí)跟監(jiān)控電源差不多的。武漢安防監(jiān)控開關(guān)電源多少錢</p><p style="text-indent:25px">監(jiān)控?cái)z像機(jī)電源的選擇還需要注意什么問題：開始：在集中供電方案中給攝像機(jī)接電源時(shí)，不要把距離較遠(yuǎn)的攝像機(jī)和距離較近的監(jiān)控?cái)z像機(jī)接在同一臺(tái)電源上。如果接在同一臺(tái)電源上，電源電壓高了，會(huì)燒毀近距離的攝像機(jī)，電源電壓低了，距離較遠(yuǎn)的攝像機(jī)無圖像。立方體攝相機(jī)采用寬電源設(shè)計(jì)，可以在直流輸入電壓12V—36V范圍內(nèi)長(zhǎng)期穩(wěn)定工作，徹底根除輸入電壓不穩(wěn)定(如浪涌等)對(duì)攝像機(jī)造成的危害.可以很好地解決這個(gè)問題。是對(duì)攝像機(jī)集中供電的較佳解決方案。第二：如果監(jiān)控距離太遠(yuǎn)，需要配置更高電壓的電源，如30V，36V等等，甚至直接供220V交流電，到前端再變壓。武漢安防監(jiān)控開關(guān)電源多少錢</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3162006.html</p></div></div></div></div></div><div id="xy7pro2" class="page-right twoColRt"><div id="p9hoq7a" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kwy32iy" 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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