【正文】 弱電 安防系統(tǒng)培訓(xùn)內(nèi)容 目 錄 ***閉路監(jiān)控系統(tǒng) *** .............................................................. 5 一．?dāng)z像機(jī) ............................................................................. 5 1. 基礎(chǔ)知識 ............................................................................................................................. 5 a. 什么是 CCD 攝像機(jī)？ ...................................................................................................... 5 b. CCD 攝像機(jī)的工作方式 .................................................................................................... 5 c. 分辨率的選擇 ................................................................................................................... 6 d. 成像靈敏度 ...................................................................................................................... 6 e. 參考環(huán)境照度： ................................................................................................................ 6 f. 電子快門 ........................................................................................................................... 6 .................................................................................................................... 6 h. CCD 芯片的尺寸 .............................................................................................................. 7 攝像機(jī)的選擇和分類 ..................................................................................................... 7 ................................................................................................................ 7 ...................................................................................................... 7 CCD 靶面大小劃分 ........................................................................................................ 8 PAL 制 , NTSC 制 ....................................................................................... 8 ................................................................................................................ 8 ................................................................................................................. 8 g、按照度劃分 ..................................................................................................................... 9 ： ....................................................................................................................... 9 3. CCD 攝像機(jī)的安裝與調(diào)整 .................................................................................................... 9 a. 鏡頭的安裝方式 ............................................................................................................... 9 ON/OFF（自動增益控制） ........................................................................................ 9 c. ATW ON/OFF（自動白平衡）： ........................................................................................ 10 d. ALC/ELC（自動亮度控制 /電子亮度控制） ...................................................................... 10 e. BLC ON/OFF（背光補(bǔ)償開關(guān)） ...................................................................................... 10 f. LL/INT（同步選擇開關(guān)） ................................................................................................ 10 g. VIDEO/DC（鏡頭控制信號選擇開關(guān)） .............................................................................11 h. SOFT/SHARP（細(xì)節(jié)電平選擇開關(guān)） ................................................................................11 i. FLICKERLESS（無閃動方式） .........................................................................................11 ： .......................................................................................................................11 二．?dāng)z像機(jī)鏡頭 ................................................................... 12 。 ....................................................................................................... 12 、自動光圈鏡頭的選用 ............................................................................................. 12 、變焦鏡頭的選用 .................................................................................................... 13 ......................................................................................... 13 低照度攝像機(jī)的正確認(rèn)識 ...................................................................................................... 14 三 .監(jiān)控外圍設(shè)備介紹 ........................................................... 14 ................................................................................................................................... 14 云臺有多種類型： ............................................................................................................. 15 .............................................................................................................. 15 ................................................................................................................................... 16 ................................................................................................................................ 16 ................................................................................................................................ 17 ......................................................................................................................... 17 ......................................................................................................................... 17 ......................................................................................................................... 17 ......................................................................................................................... 18 ................................................................................................................................ 18 .....................................................................................................