視頻監控系統(性能功能)檢測方法講解
隨著我國城(cheng)市的(de)(de)發展(zhan)(zhan),構(gou)(gou)建和(he)諧社會、平(ping)安(an)(an)(an)城(cheng)市、平(ping)安(an)(an)(an)校園、平(ping)安(an)(an)(an)社區(qu)的(de)(de)建設(she)已(yi)成(cheng)為(wei)社會發展(zhan)(zhan)的(de)(de)主流,各(ge)省、市的(de)(de)安(an)(an)(an)防監控系統工程(cheng)相(xiang)繼完成(cheng)并投入(ru)使用(yong)。如果工程(cheng)出現問題會給使用(yong)方(fang)造成(cheng)損失。為(wei)了將安(an)(an)(an)防監控工程(cheng)做好,真正讓用(yong)戶滿意放心(xin),依據公安(an)(an)(an)部門(men)的(de)(de)有關要求,對特殊(shu)行(xing)業、文(wen)物單位和(he)校園等重點安(an)(an)(an)防工程(cheng),必須經過有公安(an)(an)(an)部授權的(de)(de)檢測(ce)機構(gou)(gou)檢測(ce)合(he)格(ge)后方(fang)能投入(ru)使用(yong)。
安防監(jian)控系統(tong)工程大多依據GB50348——2004《安全(quan)防范工程技術規(gui)范》和(he)GA/T669《城市(shi)監(jian)控報警聯網系統(tong)通用技術要求》及各(ge)個地方招標(biao)文件的技術條款設(she)計實施(shi)的。安防監(jian)控系統(tong)工程的檢驗內容主要包括(kuo):系統(tong)性能、系統(tong)功能、電(dian)源供電(dian)、設(she)備安全(quan)性、防雷接地、電(dian)磁(ci)兼容性和(he)安裝施(shi)工工藝(yi)等。
在工(gong)(gong)(gong)程(cheng)(cheng)(cheng)現場檢驗之前(qian),工(gong)(gong)(gong)程(cheng)(cheng)(cheng)的(de)(de)受檢方應事先提(ti)交與工(gong)(gong)(gong)程(cheng)(cheng)(cheng)相關(guan)(guan)的(de)(de)各項資料:包括施工(gong)(gong)(gong)合同(tong)、技(ji)術方案、使用設備(bei)清(qing)單、相關(guan)(guan)產品的(de)(de)檢驗報告、隱(yin)蔽工(gong)(gong)(gong)程(cheng)(cheng)(cheng)的(de)(de)驗收報告、安(an)(an)防(fang)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)施工(gong)(gong)(gong)資質,以(yi)及工(gong)(gong)(gong)程(cheng)(cheng)(cheng)試運(yun)行期間的(de)(de)運(yun)行記錄等。其中施工(gong)(gong)(gong)技(ji)術方案作(zuo)為(wei)檢驗的(de)(de)重要依據,要嚴格按照國家的(de)(de)相關(guan)(guan)安(an)(an)防(fang)技(ji)術標準執行。檢驗人(ren)員還要聽取使用方對有關(guan)(guan)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)特殊(shu)要求(qiu)的(de)(de)說明(ming),并了解施工(gong)(gong)(gong)方在施工(gong)(gong)(gong)過程(cheng)(cheng)(cheng)中遇到(dao)的(de)(de)問(wen)題。
一(yi)、視頻監控系統(性能功能)檢測
依據(ju)(ju)工(gong)程技術(shu)方案的(de)設備清單,一要查(cha)看(kan)開通路數(shu)情況是(shi)(shi)否符(fu)合設計要求;二要查(cha)看(kan)圖(tu)(tu)像(xiang)(xiang)質量。圖(tu)(tu)像(xiang)(xiang)質量是(shi)(shi)判別整個工(gong)程優劣(lie)的(de)最直觀的(de)依據(ju)(ju),圖(tu)(tu)像(xiang)(xiang)的(de)質量主要取決于(yu)前端(duan)攝像(xiang)(xiang)機的(de)分辨率。按照GB50198《民(min)用閉路監視(shi)電視(shi)系統工(gong)程技術(shu)規范》規定,彩色電視(shi)機線數(shu)不低(di)于(yu)270線,回放不低(di)于(yu)220線。查(cha)看(kan)每(mei)一路圖(tu)(tu)像(xiang)(xiang)是(shi)(shi)否符(fu)合要求;三(san)要查(cha)看(kan)每(mei)路圖(tu)(tu)像(xiang)(xiang)切換情況,保(bao)證圖(tu)(tu)像(xiang)(xiang)的(de)監視(shi)位(wei)置符(fu)合要求,需監視(shi)的(de)部位(wei)無盲區、無死角。
二、安裝與施工工藝的(de)檢(jian)測
在整個安(an)(an)防工程(cheng)當中(zhong),設(she)(she)備(bei)的(de)(de)安(an)(an)裝(zhuang)與施工工藝(yi)的(de)(de)好壞,直接關系(xi)到系(xi)統(tong)是(shi)(shi)否(fou)安(an)(an)全(quan)可靠運行(xing)的(de)(de)保(bao)證。檢(jian)測(ce)過(guo)程(cheng)中(zhong)的(de)(de)重(zhong)點(dian)為(wei):一,設(she)(she)備(bei)的(de)(de)安(an)(an)裝(zhuang)。要(yao)清點(dian)設(she)(she)備(bei)安(an)(an)裝(zhuang)的(de)(de)數量、安(an)(an)裝(zhuang)位(wei)置、監控中(zhong)心機柜、使用面積是(shi)(shi)否(fou)合理(li)、是(shi)(shi)否(fou)符合設(she)(she)計要(yao)求。二,施工工藝(yi)檢(jian)測(ce)重(zhong)點(dian)為(wei)首(shou)先要(yao)查(cha)看布線是(shi)(shi)否(fou)捆扎整齊;其(qi)次二要(yao)查(cha)看信號(hao)線與電源線是(shi)(shi)否(fou)分(fen)開排(pai)列,防止信號(hao)之間互(hu)相影響;最后要(yao)查(cha)看所有設(she)(she)備(bei)的(de)(de)進處(chu)線是(shi)(shi)否(fou)有永久性標(biao)志(zhi)或標(biao)示,以方(fang)便日后的(de)(de)維護與保(bao)養(yang);對于(yu)隱(yin)蔽安(an)(an)裝(zhuang)的(de)(de)線纜、光纜無(wu)法(fa)現場檢(jian)驗檢(jian)測(ce)的(de)(de)部(bu)分(fen),應要(yao)求收檢(jian)方(fang)提供(gong)詳(xiang)實的(de)(de)隱(yin)蔽工程(cheng)驗收單或檢(jian)驗報告。
三(san)、電源供電系統檢測
電(dian)(dian)(dian)(dian)(dian)源(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)系統是(shi)(shi)保(bao)(bao)證(zheng)整(zheng)個系統工程安全正(zheng)常工作的(de)(de)重要(yao)(yao)(yao)(yao)部(bu)分,在檢(jian)驗(yan)驗(yan)收過程中(zhong)(zhong)要(yao)(yao)(yao)(yao)嚴(yan)格按照設計文件(jian)或(huo)施工合(he)同逐項進(jin)行,其重點是(shi)(shi)查看系統的(de)(de)供(gong)電(dian)(dian)(dian)(dian)(dian)方式。對于重點工程要(yao)(yao)(yao)(yao)求有兩路市電(dian)(dian)(dian)(dian)(dian)與(yu)(yu)UPS電(dian)(dian)(dian)(dian)(dian)源(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian):一,如為市電(dian)(dian)(dian)(dian)(dian)供(gong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)要(yao)(yao)(yao)(yao)檢(jian)測(ce)(ce)其市電(dian)(dian)(dian)(dian)(dian)供(gong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓是(shi)(shi)否(fou)正(zheng)常穩定;二,UPS電(dian)(dian)(dian)(dian)(dian)源(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)是(shi)(shi)保(bao)(bao)證(zheng)或(huo)避(bi)免系統因(yin)突然市電(dian)(dian)(dian)(dian)(dian)斷電(dian)(dian)(dian)(dian)(dian)而造成數據丟(diu)失和(he)設備(bei)的(de)(de)損壞。在檢(jian)測(ce)(ce)驗(yan)收過程中(zhong)(zhong):一要(yao)(yao)(yao)(yao)進(jin)行斷市電(dian)(dian)(dian)(dian)(dian)試驗(yan),查看設備(bei)運行情況及UPS電(dian)(dian)(dian)(dian)(dian)源(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)情況;二要(yao)(yao)(yao)(yao)在斷市電(dian)(dian)(dian)(dian)(dian)試驗(yan)后實地查看所用(yong)設備(bei)是(shi)(shi)否(fou)真正(zheng)實現UPS電(dian)(dian)(dian)(dian)(dian)源(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)、設備(bei)是(shi)(shi)否(fou)工作正(zheng)常;三要(yao)(yao)(yao)(yao)檢(jian)測(ce)(ce)或(huo)計算UPS電(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)供(gong)電(dian)(dian)(dian)(dian)(dian)時(shi)間與(yu)(yu)容量,是(shi)(shi)否(fou)滿足符合(he)設計與(yu)(yu)使用(yong)要(yao)(yao)(yao)(yao)求。
四、防雷與接地措施檢測
對于安(an)防系(xi)(xi)統工程來講,防雷與(yu)接(jie)地(di)最大(da)的(de)(de)(de)威(wei)脅一是(shi)(shi)(shi)(shi)直擊(ji)雷對安(an)裝在室外的(de)(de)(de)前端設備的(de)(de)(de)危害;二是(shi)(shi)(shi)(shi)感應雷對監控(kong)中(zhong)心設備和操作(zuo)人(ren)員的(de)(de)(de)危害。防雷與(yu)接(jie)地(di)措施是(shi)(shi)(shi)(shi)保證系(xi)(xi)統設備安(an)全(quan)運行不被(bei)雷擊(ji),減少損失的(de)(de)(de)必要保證,應嚴格按照設計(ji)文件(jian)及GB50348——2004《安(an)全(quan)防范工程技術規范》標準進行檢(jian)測(ce)。在檢(jian)測(ce)中(zhong)一是(shi)(shi)(shi)(shi)要查看前端設備是(shi)(shi)(shi)(shi)否(fou)(fou)安(an)裝避雷設備,避雷設備的(de)(de)(de)選(xuan)型(xing)是(shi)(shi)(shi)(shi)否(fou)(fou)符合(he);二是(shi)(shi)(shi)(shi)查看連接(jie)線的(de)(de)(de)選(xuan)型(xing)與(yu)安(an)裝是(shi)(shi)(shi)(shi)否(fou)(fou)符合(he);三(san)是(shi)(shi)(shi)(shi)要測(ce)量接(jie)地(di)電阻(zu)是(shi)(shi)(shi)(shi)否(fou)(fou)符合(he),對重點(dian)工程還應依據當地(di)氣象部門提供的(de)(de)(de)檢(jian)測(ce)報告,綜(zong)合(he)檢(jian)驗(yan)情況,給予客觀的(de)(de)(de)數據和結論。
五、設備安(an)全性和電磁兼容性檢驗(yan)
在安(an)防工(gong)程(cheng)系統中(zhong),設(she)(she)備(bei)的安(an)全(quan)性測試(shi)是為(wei)了設(she)(she)備(bei)在投入運行的過程(cheng)中(zhong),能夠保(bao)證(zheng)操(cao)作者人(ren)身(shen)健(jian)康、安(an)全(quan)和設(she)(she)備(bei)本身(shen)安(an)全(quan)技術(shu)要求(qiu)。應按照工(gong)程(cheng)系統中(zhong)的設(she)(she)備(bei)數量,按照比例要求(qiu)抽(chou)取(qu)設(she)(she)備(bei),并(bing)逐(zhu)一對設(she)(she)備(bei)的耐壓、絕緣、泄漏、靜放電、抗擾(rao)度等進(jin)行測試(shi)驗收。
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