亚洲精品成人一区二区aⅴ-亚洲精品成人一区二区www-亚洲精品成人在线-亚洲精品第一国产综合野-国产日韩久久久精品影院首页-国产日韩久久久久69影院

店鋪監控攝像頭焦距選擇多少合(he)適_成(cheng)都萬全電子

如今越累越多的臨街店鋪選擇安裝視頻監控攝像頭來提升安全防范能力和遠程管理店鋪。但是很多人在選擇監控攝像頭的時候卻不知道該如何選擇監控攝像頭的焦距。今天我們就來聊聊店鋪監控攝像頭焦距選擇多少合適！

監控(kong)(kong)攝(she)(she)像頭(tou)的焦(jiao)距和水平(ping)(ping)視角成反比。監控(kong)(kong)攝(she)(she)像頭(tou)焦(jiao)距越(yue)(yue)小，水平(ping)(ping)視角角度(du)越(yue)(yue)大，有(you)效(xiao)監控(kong)(kong)距離越(yue)(yue)近；反之，焦(jiao)距越(yue)(yue)大，水平(ping)(ping)視角角度(du)越(yue)(yue)小，有(you)效(xiao)監控(kong)(kong)距離越(yue)(yue)遠。

市面上(shang)(shang)目前常用(yong)的(de)(de)監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)焦距(ju)(ju)有(you)：2.8mm、4mm、6mm、8mm。其水平視(shi)角角度如(ru)上(shang)(shang)圖(tu)所(suo)示，分別為：102°、79°、51°、38°。隨著攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)焦距(ju)(ju)越大，監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)的(de)(de)水平視(shi)角越來越小，其監(jian)(jian)控(kong)(kong)距(ju)(ju)離也會越來越遠。我們(men)在選擇監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)的(de)(de)時(shi)候，需要(yao)(yao)(yao)根據現場環境(jing)和被(bei)(bei)監(jian)(jian)控(kong)(kong)區(qu)域(yu)的(de)(de)大小來決(jue)定監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)的(de)(de)焦距(ju)(ju)。如(ru)果一個攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)無法完全覆蓋我們(men)想要(yao)(yao)(yao)監(jian)(jian)控(kong)(kong)的(de)(de)區(qu)域(yu)，就需要(yao)(yao)(yao)增加攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)數量(liang)來彌補。將被(bei)(bei)監(jian)(jian)控(kong)(kong)區(qu)域(yu)化成幾(ji)個小區(qu)域(yu)，每個監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)負責監(jian)(jian)控(kong)(kong)一個小區(qu)域(yu)。以上(shang)(shang)是(shi)理論上(shang)(shang)方法。在實際安(an)(an)裝過程中，我們(men)還需要(yao)(yao)(yao)根據現場環境(jing)選擇適合安(an)(an)裝監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)的(de)(de)位置(zhi)(zhi)，綜合考慮(lv)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)安(an)(an)裝位置(zhi)(zhi)與被(bei)(bei)監(jian)(jian)控(kong)(kong)區(qu)域(yu)的(de)(de)情況來選擇不同(tong)的(de)(de)監(jian)(jian)控(kong)(kong)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)。因此(ci)，一個店鋪(pu)安(an)(an)裝的(de)(de)所(suo)有(you)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)并不都(dou)是(shi)相同(tong)焦距(ju)(ju)的(de)(de)攝(she)(she)像(xiang)(xiang)(xiang)頭(tou)(tou)(tou)(tou)。

成(cheng)(cheng)都(dou)(dou)萬(wan)全電(dian)子，又稱成(cheng)(cheng)都(dou)(dou)萬(wan)全安(an)(an)(an)(an)防，成(cheng)(cheng)立至今已有13年(nian)有余。專注安(an)(an)(an)(an)防監(jian)(jian)控(kong)(kong)工程(cheng)施工、維保服(fu)務。業務覆(fu)蓋整個四川18個地級(ji)市，成(cheng)(cheng)都(dou)(dou)市覆(fu)蓋區(qu)(qu)域有：金(jin)牛區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、青羊區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、武侯區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、成(cheng)(cheng)華區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、錦(jin)江區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、高(gao)新區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、天府新區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、郫都(dou)(dou)區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)、溫江區(qu)(qu)監(jian)(jian)控(kong)(kong)安(an)(an)(an)(an)裝(zhuang)(zhuang)。用過硬的技(ji)術(shu)(shu)實力和高(gao)品質的服(fu)務，為(wei)客(ke)戶打造靠譜的安(an)(an)(an)(an)防弱(ruo)電(dian)系統(tong)。如(ru)有需要(yao)，歡迎來電(dian)咨(zi)詢。（以上文章來源于成(cheng)(cheng)都(dou)(dou)萬(wan)全電(dian)子技(ji)術(shu)(shu)服(fu)務有限責(ze)任公司（69wy.cn）,13年(nian)專注安(an)(an)(an)(an)防監(jian)(jian)控(kong)(kong)工程(cheng)與(yu)服(fu)務.轉載請注明出處(chu)！）