火災自動報警系(xi)統是設(she)置在建筑(zhu)物或(huo)其他場所(suo)中的(de)一種自動消防設(she)施，能早(zao)期發現(xian)和通報火災。

火(huo)災自動(dong)(dong)報(bao)警(jing)系統通(tong)常(chang)由觸(chu)發裝(zhuang)(zhuang)置如火(huo)災探測器、報(bao)警(jing)裝(zhuang)(zhuang)置如火(huo)災報(bao)警(jing)控(kong)制(zhi)器、警(jing)報(bao)裝(zhuang)(zhuang)置如聲光報(bao)警(jing)器、聯動(dong)(dong)控(kong)制(zhi)裝(zhuang)(zhuang)置如總線(xian)控(kong)制(zhi)盤(pan)與(yu)控(kong)制(zhi)模塊、電源等組成。

工(gong)作原理(li)：在火(huo)(huo)災初(chu)期，將燃(ran)燒產生(sheng)的(de)煙(yan)霧、熱(re)量和(he)光輻(fu)射等物理(li)量，通過感(gan)煙(yan)、感(gan)溫和(he)感(gan)光等火(huo)(huo)災探測器(qi)變成電信號，傳(chuan)輸到火(huo)(huo)災報警控制器(qi)，信號經(jing)火(huo)(huo)災報警控制器(qi)處理(li)、分析、判斷后(hou)，以(yi)聲、光、文字等方式顯示出(chu)來(lai)并同(tong)時顯示出(chu)火(huo)(huo)災發生(sheng)的(de)部位，記(ji)錄火(huo)(huo)災發生(sheng)的(de)時間。

聯(lian)(lian)動(dong)(dong)控制(zhi)(zhi)(zhi)：火(huo)(huo)災自(zi)動(dong)(dong)報警系(xi)(xi)(xi)統(tong)(tong)一(yi)般(ban)和預(yu)作用(yong)系(xi)(xi)(xi)統(tong)(tong)、雨(yu)淋系(xi)(xi)(xi)統(tong)(tong)、水(shui)幕系(xi)(xi)(xi)統(tong)(tong)、水(shui)噴霧(wu)系(xi)(xi)(xi)統(tong)(tong)、水(shui)炮系(xi)(xi)(xi)統(tong)(tong)、氣體滅(mie)火(huo)(huo)系(xi)(xi)(xi)統(tong)(tong)、防(fang)排煙(yan)系(xi)(xi)(xi)統(tong)(tong)、通風(feng)(feng)系(xi)(xi)(xi)統(tong)(tong)、空調(diao)系(xi)(xi)(xi)統(tong)(tong)、常開防(fang)火(huo)(huo)門、防(fang)火(huo)(huo)卷(juan)簾(lian)(lian)、擋煙(yan)垂壁、消(xiao)(xiao)防(fang)廣(guang)播等設備聯(lian)(lian)動(dong)(dong)。在(zai)(zai)火(huo)(huo)災情況下，控制(zhi)(zhi)(zhi)器(qi)如在(zai)(zai)自(zi)動(dong)(dong)狀態，會自(zi)動(dong)(dong)啟(qi)動(dong)(dong)防(fang)排煙(yan)風(feng)(feng)機(ji)、停止新風(feng)(feng)機(ji)、關閉防(fang)火(huo)(huo)閥、釋(shi)放防(fang)火(huo)(huo)門、防(fang)火(huo)(huo)卷(juan)簾(lian)(lian)以及(ji)擋煙(yan)垂壁等，也能(neng)自(zi)動(dong)(dong)啟(qi)動(dong)(dong)預(yu)作用(yong)、雨(yu)淋、水(shui)幕、水(shui)噴霧(wu)和水(shui)炮泵(beng)，還能(neng)在(zai)(zai)消(xiao)(xiao)防(fang)控制(zhi)(zhi)(zhi)室(shi)直(zhi)接(jie)啟(qi)動(dong)(dong)消(xiao)(xiao)防(fang)泵(beng)和防(fang)排煙(yan)風(feng)(feng)機(ji)。