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紅外攝像機的(de)監控(kong)鏡頭選擇三要(yao)素

　　紅(hong)外(wai)(wai)監(jian)(jian)(jian)控攝(she)像(xiang)頭安裝(zhuang)，在(zai)(zai)安裝(zhuang)監(jian)(jian)(jian)控工程時，首要(yao)考慮的(de)(de)三(san)個(ge)因(yin)(yin)素就是紅(hong)外(wai)(wai)攝(she)像(xiang)機的(de)(de)清晰(xi)度、監(jian)(jian)(jian)控距離、監(jian)(jian)(jian)控范(fan)圍。這(zhe)也是在(zai)(zai)選(xuan)擇紅(hong)外(wai)(wai)攝(she)像(xiang)機的(de)(de)時候需要(yao)首要(yao)進(jin)行選(xuan)擇的(de)(de)幾個(ge)因(yin)(yin)素。特(te)別是監(jian)(jian)(jian)控范(fan)圍對紅(hong)外(wai)(wai)攝(she)像(xiang)機監(jian)(jian)(jian)控鏡頭的(de)(de)選(xuan)擇至關重要(yao)。紅(hong)外(wai)(wai)攝(she)像(xiang)機的(de)(de)監(jian)(jian)(jian)控鏡頭直接(jie)決(jue)定監(jian)(jian)(jian)控范(fan)圍，所以在(zai)(zai)選(xuan)擇紅(hong)外(wai)(wai)攝(she)像(xiang)機監(jian)(jian)(jian)控鏡頭的(de)(de)時候首要(yao)考慮就是監(jian)(jian)(jian)控范(fan)圍有多少(shao)。

　　在選選擇(ze)紅(hong)外攝(she)像(xiang)機的時候(hou)，應該到(dao)安防施(shi)工現場進行考察，測量(liang)一下監(jian)(jian)(jian)(jian)控(kong)(kong)距離有多(duo)遠，監(jian)(jian)(jian)(jian)控(kong)(kong)范圍(wei)有多(duo)寬，得到(dao)這(zhe)些數據我們才能夠選擇(ze)到(dao)合適的紅(hong)外攝(she)像(xiang)機監(jian)(jian)(jian)(jian)控(kong)(kong)鏡頭。 紅(hong)外攝(she)像(xiang)機的監(jian)(jian)(jian)(jian)控(kong)(kong)范圍(wei)和(he)監(jian)(jian)(jian)(jian)控(kong)(kong)距離這(zhe)兩個參(can)數是相互對立的，正所謂魚與熊掌(zhang)不可兼得，監(jian)(jian)(jian)(jian)控(kong)(kong)范圍(wei)擴大(da)了(le)，監(jian)(jian)(jian)(jian)控(kong)(kong)距離就(jiu)變近了(le)，反之(zhi)，監(jian)(jian)(jian)(jian)控(kong)(kong)距離遠了(le)，監(jian)(jian)(jian)(jian)控(kong)(kong)范圍(wei)就(jiu)變小了(le)紅(hong)外監(jian)(jian)(jian)(jian)控(kong)(kong)攝(she)像(xiang)頭安裝。

　　在選(xuan)擇(ze)(ze)紅外(wai)攝像(xiang)機監(jian)控(kong)鏡(jing)(jing)頭(tou)(tou)的時(shi)候要(yao)(yao)根據(ju)實際(ji)監(jian)控(kong)環(huan)境(jing)(jing)來進行判斷，對于(yu)需(xu)要(yao)(yao)大范圍監(jian)控(kong)的環(huan)境(jing)(jing)，選(xuan)擇(ze)(ze)廣(guang)角鏡(jing)(jing)頭(tou)(tou)很不(bu)錯，對于(yu)需(xu)要(yao)(yao)遠距離監(jian)控(kong)的環(huan)境(jing)(jing)來說選(xuan)擇(ze)(ze)長焦(jiao)鏡(jing)(jing)頭(tou)(tou)很合適(shi)。 鏡(jing)(jing)頭(tou)(tou)焦(jiao)距直接決定紅外(wai)攝像(xiang)機監(jian)控(kong)距離和監(jian)控(kong)范圍，

　　目前市場上的(de)(de)紅(hong)(hong)(hong)外(wai)(wai)攝(she)像(xiang)機(ji)(ji)監(jian)控(kong)(kong)(kong)鏡(jing)頭(tou)類型(xing)多樣(yang)，有(you)(you)的(de)(de)支持(chi)變焦(jiao)，有(you)(you)的(de)(de)屬于固定鏡(jing)頭(tou)，對(dui)于變焦(jiao)鏡(jing)頭(tou)來說，靈(ling)活性比較(jiao)大，能夠適應更多的(de)(de)監(jian)控(kong)(kong)(kong)環境(jing)。固定鏡(jing)頭(tou)有(you)(you)固定的(de)(de)焦(jiao)距(ju)，監(jian)控(kong)(kong)(kong)距(ju)離(li)和監(jian)控(kong)(kong)(kong)范(fan)圍(wei)不(bu)變，只能根(gen)(gen)據監(jian)控(kong)(kong)(kong)環境(jing)選擇鏡(jing)頭(tou)。 紅(hong)(hong)(hong)外(wai)(wai)攝(she)像(xiang)機(ji)(ji)在白(bai)天監(jian)控(kong)(kong)(kong)時，我們可以根(gen)(gen)據鏡(jing)頭(tou)參數(shu)來判定它的(de)(de)監(jian)控(kong)(kong)(kong)距(ju)離(li)，除了(le)鏡(jing)頭(tou)焦(jiao)距(ju)外(wai)(wai)，紅(hong)(hong)(hong)外(wai)(wai)燈板的(de)(de)照(zhao)射距(ju)離(li)也是(shi)影響紅(hong)(hong)(hong)外(wai)(wai)攝(she)像(xiang)機(ji)(ji)監(jian)控(kong)(kong)(kong)距(ju)離(li)的(de)(de)重要因素，紅(hong)(hong)(hong)外(wai)(wai)燈板的(de)(de)發射功率(lv)越(yue)大，攝(she)像(xiang)機(ji)(ji)的(de)(de)夜視(shi)距(ju)離(li)就越(yue)遠。

　　選擇紅(hong)(hong)外(wai)攝像機監控鏡頭(tou)需要根據(ju)實際(ji)情況(kuang)去進行(xing)判斷，千萬不(bu)要在還沒有進行(xing)監控環(huan)(huan)境(jing)考察(cha)的時候(hou)就直接決定紅(hong)(hong)外(wai)攝像機的監控鏡頭(tou)類型，不(bu)考察(cha)監控環(huan)(huan)境(jing)直接購買(mai)，往往得不(bu)償(chang)失紅(hong)(hong)外(wai)監控攝像頭(tou)安裝。