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視頻監控系(xi)統(tong)方案 的(de)設計要(yao)點都(dou)有哪些?

時間(jian):2018-07-25    來源:本站    瀏覽:1915次

 

視(shi)頻監控系(xi)統方案(an) 的設計要點都(dou)有哪(na)些?


1、加強電(dian)(dian)(dian)(dian)力保(bao)護:網絡(luo)視(shi)頻監控系統依托于(yu)網絡(luo),取電(dian)(dian)(dian)(dian)是通過PoE交(jiao)換(huan)機或從弱(ruo)(ruo)電(dian)(dian)(dian)(dian)井和(he)弱(ruo)(ruo)電(dian)(dian)(dian)(dian)間取電(dian)(dian)(dian)(dian)。因此,弱(ruo)(ruo)電(dian)(dian)(dian)(dian)井和(he)弱(ruo)(ruo)電(dian)(dian)(dian)(dian)間的電(dian)(dian)(dian)(dian)力安(an)(an)全(quan)就非常(chang)重要(yao)。如(ru)若停電(dian)(dian)(dian)(dian),不光(guang)是全(quan)院的網絡(luo)癱瘓(huan)(huan),視(shi)頻監控系統也會(hui)跟著(zhu)癱瘓(huan)(huan),這就要(yao)求在設(she)計的時候(hou)一定要(yao)提高弱(ruo)(ruo)電(dian)(dian)(dian)(dian)井和(he)弱(ruo)(ruo)電(dian)(dian)(dian)(dian)間的用電(dian)(dian)(dian)(dian)安(an)(an)全(quan)級(ji)別,增加UPS電(dian)(dian)(dian)(dian)源與備用供(gong)電(dian)(dian)(dian)(dian)線路;


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2、前端IP攝像(xiang)(xiang)機(ji)按需配(pei)置:IP攝像(xiang)(xiang)機(ji)種類很多,不是很重要(yao)的(de)(de)地(di)點,配(pei)置720P的(de)(de)IP攝像(xiang)(xiang)機(ji)就可(ke)以了(le),畢竟帶寬有(you)限,以后(hou)需要(yao)提高畫質(zhi),再(zai)更換更高像(xiang)(xiang)素的(de)(de)IP攝像(xiang)(xiang)機(ji)也(ye)很方便。據筆者使用(yong)經驗,使用(yong)CMOS圖(tu)(tu)像(xiang)(xiang)傳感(gan)器的(de)(de)攝像(xiang)(xiang)機(ji)只(zhi)要(yao)不經常在低(di)照度(du)下(xia)工作(zuo),完全可(ke)以代替使用(yong)CCD圖(tu)(tu)像(xiang)(xiang)傳感(gan)器的(de)(de)攝像(xiang)(xiang)機(ji),價格(ge)便宜,功(gong)耗、體(ti)積也(ye)小。由于IP攝像(xiang)(xiang)機(ji)增加了(le)視頻壓縮與網絡傳輸部(bu)分,其散熱上對比模(mo)擬(ni)攝像(xiang)(xiang)機(ji)有(you)更高要(yao)求;


3、合理(li)(li)分配(pei)網段(duan):大規模部署(shu)IP攝像(xiang)(xiang)(xiang)(xiang)機對于IPV4網絡有網段(duan)分配(pei)問(wen)題,一(yi)個(ge)網段(duan)最多容(rong)納254臺攝像(xiang)(xiang)(xiang)(xiang)機,超過了需(xu)跨網段(duan),增加了網絡設置的(de)復雜程度,可通過NVR分段(duan)管(guan)(guan)(guan)理(li)(li)IP攝像(xiang)(xiang)(xiang)(xiang)機來解決這個(ge)問(wen)題。比如(ru),中南財經政法大學武漢學院正(zheng)在建(jian)的(de)黃(huang)家(jia)湖新校區(qu),將(jiang)新裝IP攝像(xiang)(xiang)(xiang)(xiang)機1000臺左右,打算(suan)按(an)地(di)域(yu)(yu)劃分為10個(ge)區(qu)域(yu)(yu)來管(guan)(guan)(guan)理(li)(li),每個(ge)區(qu)域(yu)(yu)劃分一(yi)個(ge)網段(duan),配(pei)置一(yi)臺NVR,通過監(jian)控(kong)管(guan)(guan)(guan)理(li)(li)平(ping)臺管(guan)(guan)(guan)理(li)(li);


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4、分布(bu)(bu)與(yu)集(ji)(ji)(ji)中式存(cun)儲(chu)(chu)(chu)靈(ling)活(huo)配置:大規模部署IP攝(she)像(xiang)機集(ji)(ji)(ji)中存(cun)儲(chu)(chu)(chu)對(dui)網絡的壓力也(ye)是(shi)一個問(wen)題,網絡視頻(pin)監(jian)控系(xi)統(tong)本(ben)就是(shi)一個很靈(ling)活(huo)的系(xi)統(tong),建議分布(bu)(bu)式存(cun)儲(chu)(chu)(chu)與(yu)集(ji)(ji)(ji)中式存(cun)儲(chu)(chu)(chu)按需靈(ling)活(huo)配置,如:道(dao)路監(jian)控、重要出入口(kou)可(ke)(ke)集(ji)(ji)(ji)中存(cun)儲(chu)(chu)(chu),樓宇(yu)監(jian)控可(ke)(ke)分布(bu)(bu)存(cun)儲(chu)(chu)(chu),也(ye)可(ke)(ke)設定計劃(hua)任務,利(li)用晚間網絡空閑期(qi)把分布(bu)(bu)存(cun)儲(chu)(chu)(chu)的重要錄像(xiang),同步到(dao)集(ji)(ji)(ji)中存(cun)儲(chu)(chu)(chu)中來(lai)。不過筆者(zhe)認為,目前利(li)用虛(xu)擬存(cun)儲(chu)(chu)(chu)技(ji)術,組建云存(cun)儲(chu)(chu)(chu)平臺才是(shi)網絡監(jian)控系(xi)統(tong)解決存(cun)儲(chu)(chu)(chu)問(wen)題的發展方向。