選購視頻監控安裝的幾點注意事項
因為(wei)現(xian)在(zai)(zai)人(ren)(ren)們(men)對安全(quan)需求的(de)急速上(shang)(shang)升,對視(shi)頻(pin)(pin)監控(kong)監控(kong)系(xi)統(tong)(tong)的(de)關注度(du)也日益上(shang)(shang)漲,到現(xian)在(zai)(zai)已經演(yan)變為(wei)視(shi)頻(pin)(pin)監控(kong)系(xi)統(tong)(tong)成為(wei)人(ren)(ren)們(men)在(zai)(zai)維持社會秩序和維護個(ge)人(ren)(ren)人(ren)(ren)生(sheng)安全(quan)的(de)普遍的(de)有效手段(duan)。截(jie)止目前(qian),視(shi)頻(pin)(pin)監控(kong)系(xi)統(tong)(tong)主要應用于交通安全(quan)監控(kong)、商業安全(quan)監控(kong)以及家庭監控(kong)等領域(yu),那(nei)么我們(men)在(zai)(zai)選購視(shi)頻(pin)(pin)監控(kong)安裝時(shi),應該注意些什么呢?重慶紫衫科(ke)技在(zai)(zai)這(zhe)里給大家簡要列舉(ju)一下幾點(dian)。
1. 如何(he)選(xuan)擇合適(shi)的(de)(de)視(shi)頻(pin)管(guan)(guan)理(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)?首先要(yao)(yao)知道自己對視(shi)頻(pin)監控管(guan)(guan)理(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)有(you)什(shen)么(me)要(yao)(yao)求,例如你(ni)打(da)算怎么(me)使(shi)用(yong)(yong)視(shi)頻(pin)管(guan)(guan)理(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong),在購買前一定(ding)(ding)要(yao)(yao)心(xin)里有(you)數。驅使(shi)你(ni)購買視(shi)頻(pin)管(guan)(guan)理(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)的(de)(de)原(yuan)因,一定(ding)(ding)是該(gai)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)滿足你(ni)對視(shi)頻(pin)監控系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)各個(ge)方面的(de)(de)要(yao)(yao)求。舉個(ge)例子,如果(guo)用(yong)(yong)戶經常出差(cha)或者(zhe)有(you)多(duo)個(ge)監控點需要(yao)(yao)管(guan)(guan)理(li),那么(me)VMS視(shi)頻(pin)管(guan)(guan)理(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)必須能(neng)讓用(yong)(yong)戶在任何(he)地方都可以訪問(wen)。 每(mei)種不同(tong)的(de)(de)視(shi)頻(pin)管(guan)(guan)理(li)系(xi)(xi)(xi)統(tong)(tong)(tong)(tong)應該(gai)為用(yong)(yong)戶或者(zhe)應用(yong)(yong)提(ti)供(gong)專(zhuan)屬定(ding)(ding)制功能(neng)。
2. 攝像(xiang)(xiang)頭(tou)(tou)是(shi)(shi)否在(zai)(zai)(zai)室內或者室外(wai)使(shi)用(yong)?現在(zai)(zai)(zai)大部分監控攝像(xiang)(xiang)頭(tou)(tou)適合室內外(wai)安(an)(an)裝,有(you)些(xie)需要特別考慮的產(chan)品功(gong)能例(li)如(ru)安(an)(an)裝以及防(fang)(fang)(fang)水(shui)(shui)。如(ru)果(guo)是(shi)(shi)在(zai)(zai)(zai)極端(duan)寒(han)冷(leng)的環(huan)境下(xia)工作(zuo)(zuo),在(zai)(zai)(zai)選(xuan)(xuan)擇(ze)攝像(xiang)(xiang)頭(tou)(tou)時(shi)(shi)必(bi)須(xu)選(xuan)(xuan)擇(ze)攝像(xiang)(xiang)頭(tou)(tou)支持可(ke)(ke)靠(kao)設(she)計(ji),并(bing)內置(zhi)加熱器,這樣(yang)可(ke)(ke)確(que)保攝像(xiang)(xiang)機(ji)(ji)(ji)在(zai)(zai)(zai)低(di)溫下(xia)開(kai)機(ji)(ji)(ji),并(bing)能正(zheng)常工作(zuo)(zuo)。如(ru)果(guo)是(shi)(shi)應(ying)用(yong)在(zai)(zai)(zai)交通(tong)領域,那(nei)么必(bi)須(xu)的考慮使(shi)用(yong)可(ke)(ke)靠(kao)功(gong)能豐富的視頻監控方(fang)案,可(ke)(ke)在(zai)(zai)(zai)極端(duan)環(huan)境下(xia)可(ke)(ke)靠(kao)工作(zuo)(zuo),即使(shi)安(an)(an)裝環(huan)境可(ke)(ke)能存(cun)在(zai)(zai)(zai)震(zhen)動。不支持室外(wai)安(an)(an)裝的攝像(xiang)(xiang)頭(tou)(tou)應(ying)該考慮使(shi)用(yong)保護(hu)(hu)防(fang)(fang)(fang)水(shui)(shui)外(wai)殼。在(zai)(zai)(zai)其(qi)它(ta)的工業環(huan)境例(li)如(ru)工廠,攝像(xiang)(xiang)頭(tou)(tou)同樣(yang)需要采取防(fang)(fang)(fang)塵保護(hu)(hu)措施(shi)。如(ru)果(guo)安(an)(an)裝在(zai)(zai)(zai)飯店廚房,需確(que)保攝像(xiang)(xiang)機(ji)(ji)(ji)可(ke)(ke)以防(fang)(fang)(fang)油煙(yan),在(zai)(zai)(zai)酒吧,KTV等場所等同樣(yang)適用(yong)。在(zai)(zai)(zai)電廠等比較特殊環(huan)境的地方(fang),攝像(xiang)(xiang)機(ji)(ji)(ji)要選(xuan)(xuan)用(yong)防(fang)(fang)(fang)爆(bao)等級IP66以上(shang),甚至(zhi)加裝防(fang)(fang)(fang)爆(bao)護(hu)(hu)罩,室外(wai)加裝雨刷(shua),定時(shi)(shi)清洗攝像(xiang)(xiang)機(ji)(ji)(ji)護(hu)(hu)罩等等。
3. 采光(guang)條(tiao)件如(ru)(ru)何?如(ru)(ru)果(guo)條(tiao)件允許,最好(hao)測(ce)試哪款攝(she)像(xiang)頭(tou)在(zai)(zai)現有(you)光(guang)照(zhao)條(tiao)件下工作(zuo)最好(hao)。每(mei)(mei)天(tian)(tian)不同(tong)時(shi)間室(shi)(shi)內(nei)和室(shi)(shi)外接收到的(de)(de)光(guang)線是(shi)(shi)不一樣的(de)(de),更不用提(ti)每(mei)(mei)年中每(mei)(mei)個季節的(de)(de)變化。思考光(guang)線將從(cong)哪里過來(lai)是(shi)(shi)是(shi)(shi)否重要。例如(ru)(ru),光(guang)線會(hui)不會(hui)從(cong)地(di)板上反射過來(lai)?是(shi)(shi)否存(cun)在(zai)(zai)強(qiang)背景光(guang)源(yuan)并(bing)產生眩光(guang)?對(dui)于一些環境,如(ru)(ru)酒吧(ba),迪廳,閃動的(de)(de)照(zhao)明(ming)燈(deng)將對(dui)監控效果(guo)起到作(zuo)用。值(zhi)得慶幸的(de)(de)是(shi)(shi)有(you)各種不同(tong)的(de)(de)技術可確(que)保攝(she)像(xiang)機即使(shi)在(zai)(zai)不同(tong)的(de)(de)照(zhao)明(ming)條(tiao)件下拍(pai)攝(she)清(qing)晰(xi)圖像(xiang)。光(guang)過濾(lv)技術如(ru)(ru)紅(hong)外截至(zhi)濾(lv)光(guang)片(pian)可在(zai)(zai)白天(tian)(tian)過濾(lv)沒有(you)用的(de)(de)紅(hong)外光(guang),從(cong)而(er)輸出真實(shi)色彩(cai)還原(yuan)的(de)(de)彩(cai)色圖像(xiang),在(zai)(zai)夜(ye)晚依靠(kao)紅(hong)外光(guang)源(yuan),攝(she)像(xiang)頭(tou)可在(zai)(zai)漆黑的(de)(de)夜(ye)晚清(qing)晰(xi)成像(xiang)。
4. 攝(she)像(xiang)頭是否(fou)必須安裝(zhuang)隱(yin)(yin)蔽(bi)或(huo)作(zuo)(zuo)為(wei)可見并起到威懾(she)作(zuo)(zuo)用?安裝(zhuang)的(de)(de)地點,以(yi)及監(jian)控(kong)的(de)(de)范圍將決定是否(fou)使用普通(tong)(tong)或(huo)者隱(yin)(yin)蔽(bi)的(de)(de)監(jian)控(kong)攝(she)像(xiang)頭。普通(tong)(tong)槍(qiang)機(ji)攝(she)像(xiang)頭通(tong)(tong)常(chang)尺寸比較(jiao)大(da),安裝(zhuang)后最(zui)顯眼,可提醒人們該區域被視(shi)頻(pin)監(jian)控(kong)并震懾(she)犯罪份子,減少盜竊(qie)發生機(ji)會(hui)。半(ban)球(qiu)(qiu)攝(she)像(xiang)頭是要(yao)求隱(yin)(yin)蔽(bi)安裝(zhuang)的(de)(de)最(zui)好的(de)(de)選擇,因為(wei)半(ban)球(qiu)(qiu)攝(she)像(xiang)頭通(tong)(tong)常(chang)采(cai)用小(xiao)體積設(she)計,以(yi)至于(yu)只有(you)手(shou)掌大(da)小(xiao)。最(zui)后,云臺球(qiu)(qiu)機(ji)攝(she)像(xiang)頭(PTZ)適合(he)(he)于(yu)大(da)范圍監(jian)控(kong),特(te)別適合(he)(he)于(yu)寫字(zi)樓(lou),購物(wu)中心,停車場(chang)等,可容易追(zhui)蹤目(mu)標。
5. 攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)需(xu)(xu)(xu)要(yao)(yao)監(jian)(jian)控(kong)(kong)多(duo)大范(fan)圍(wei)(wei)?監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)需(xu)(xu)(xu)要(yao)(yao)覆蓋多(duo)大范(fan)圍(wei)(wei)決定了使用(yong)什么類(lei)型(xing)的攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)。最好可(ke)以(yi)找到(dao)監(jian)(jian)控(kong)(kong)區域(yu)平面圖并(bing)畫個攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)機安(an)裝草(cao)圖,分(fen)析需(xu)(xu)(xu)要(yao)(yao)使用(yong)何種攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)機,以(yi)及大概需(xu)(xu)(xu)要(yao)(yao)使用(yong)多(duo)少(shao)個攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)。球機攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)非常適合于(yu)大范(fan)圍(wei)(wei)監(jian)(jian)控(kong)(kong),因為攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)可(ke)進行(xing)水平360度,上下90度旋(xuan)轉,并(bing)支持對細節進行(xing)光學放大。 其次,可(ke)以(yi)使用(yong)高清(qing)全景(jing)攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou),全景(jing)攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)可(ke)實現無盲區360度視頻(pin)監(jian)(jian)控(kong)(kong),并(bing)且支持數字旋(xuan)轉放大。一臺全景(jing)攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)可(ke)取代(dai)多(duo)達四臺的傳統監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)。 這(zhe)就(jiu)意味著用(yong)戶可(ke)使用(yong)更少(shao)數量的攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)搭建一個網(wang)絡(luo)(luo)視頻(pin)監(jian)(jian)控(kong)(kong)系統, 同時有效地(di)減少(shao)成本。與之對比,小范(fan)圍(wei)(wei)監(jian)(jian)控(kong)(kong)僅僅可(ke)能需(xu)(xu)(xu)要(yao)(yao)使用(yong)普通的監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)(xiang)(xiang)頭(tou)(tou)(tou)。當然(ran),依據不同的監(jian)(jian)控(kong)(kong)范(fan)圍(wei)(wei),使用(yong)的網(wang)絡(luo)(luo)也(ye)不一樣(yang)。大部分(fen)視頻(pin)監(jian)(jian)控(kong)(kong)只需(xu)(xu)(xu)要(yao)(yao)使用(yong)本地(di)局(ju)域(yu)網(wang)(LAN), 而(er)大型(xing)的視頻(pin)監(jian)(jian)控(kong)(kong)系統則將使用(yong)廣域(yu)網(wang) (WAN)。
6. 需要什么(me)樣(yang)的圖(tu)像分辨率或者要求獲得(de)什么(me)樣(yang)的細節?
監控區(qu)(qu)域的大小將決定需要使用(yong)多(duo)少分(fen)(fen)辨率的攝像(xiang)(xiang)頭。例(li)如(ru),大范圍要求使用(yong)高清攝像(xiang)(xiang)頭來確保在進行圖像(xiang)(xiang)放大的適合(he)不會影響圖像(xiang)(xiang)質量。另(ling)外,較小區(qu)(qu)域,如(ru)辦公(gong)室(shi)或者接待室(shi)只需使用(yong)低分(fen)(fen)辨率攝像(xiang)(xiang)頭即可。并不是(shi)高分(fen)(fen)辨率攝像(xiang)(xiang)頭適合(he)所(suo)有的情(qing)況。相反,你(ni)最好認真(zhen)地評估每(mei)個監控點,花(hua)錢花(hua)得明智。目前攝像(xiang)(xiang)機的基本都是(shi)1080P了,200萬(wan)像(xiang)(xiang)素常配,400萬(wan)像(xiang)(xiang)素開始流行。
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