火災自(zi)動(dong)報警系(xi)統是設(she)置在建筑物(wu)或其他場所中的一(yi)種自(zi)動(dong)消(xiao)防設(she)施，能早期發(fa)現(xian)和(he)通報火災。

火災自動(dong)報警(jing)系統通常(chang)由觸發裝(zhuang)置如火災探測器、報警(jing)裝(zhuang)置如火災報警(jing)控(kong)(kong)制(zhi)(zhi)器、警(jing)報裝(zhuang)置如聲(sheng)光報警(jing)器、聯動(dong)控(kong)(kong)制(zhi)(zhi)裝(zhuang)置如總線控(kong)(kong)制(zhi)(zhi)盤與控(kong)(kong)制(zhi)(zhi)模(mo)塊、電源等組成(cheng)。

工作原理：在火災(zai)初期，將燃燒產生的煙(yan)霧、熱(re)量和光輻射等(deng)物理量，通過感(gan)煙(yan)、感(gan)溫和感(gan)光等(deng)火災(zai)探(tan)測(ce)器變成電(dian)信號(hao)，傳輸(shu)到火災(zai)報警(jing)控制器，信號(hao)經火災(zai)報警(jing)控制器處理、分(fen)析(xi)、判斷后，以聲、光、文字等(deng)方式顯示出來(lai)并同時(shi)顯示出火災(zai)發(fa)生的部位(wei)，記錄火災(zai)發(fa)生的時(shi)間。

聯動(dong)(dong)(dong)(dong)(dong)控(kong)制(zhi)：火(huo)災(zai)(zai)自(zi)動(dong)(dong)(dong)(dong)(dong)報警系(xi)(xi)(xi)統(tong)一般(ban)和預(yu)作用系(xi)(xi)(xi)統(tong)、雨淋(lin)系(xi)(xi)(xi)統(tong)、水(shui)(shui)(shui)幕系(xi)(xi)(xi)統(tong)、水(shui)(shui)(shui)噴(pen)霧(wu)系(xi)(xi)(xi)統(tong)、水(shui)(shui)(shui)炮系(xi)(xi)(xi)統(tong)、氣(qi)體滅火(huo)系(xi)(xi)(xi)統(tong)、防(fang)(fang)排(pai)煙(yan)系(xi)(xi)(xi)統(tong)、通風(feng)系(xi)(xi)(xi)統(tong)、空調系(xi)(xi)(xi)統(tong)、常開防(fang)(fang)火(huo)門、防(fang)(fang)火(huo)卷簾、擋(dang)煙(yan)垂壁、消防(fang)(fang)廣播(bo)等(deng)設(she)備聯動(dong)(dong)(dong)(dong)(dong)。在火(huo)災(zai)(zai)情況下(xia)，控(kong)制(zhi)器如(ru)在自(zi)動(dong)(dong)(dong)(dong)(dong)狀態(tai)，會自(zi)動(dong)(dong)(dong)(dong)(dong)啟(qi)(qi)動(dong)(dong)(dong)(dong)(dong)防(fang)(fang)排(pai)煙(yan)風(feng)機、停止新風(feng)機、關閉防(fang)(fang)火(huo)閥、釋放防(fang)(fang)火(huo)門、防(fang)(fang)火(huo)卷簾以及擋(dang)煙(yan)垂壁等(deng)，也能自(zi)動(dong)(dong)(dong)(dong)(dong)啟(qi)(qi)動(dong)(dong)(dong)(dong)(dong)預(yu)作用、雨淋(lin)、水(shui)(shui)(shui)幕、水(shui)(shui)(shui)噴(pen)霧(wu)和水(shui)(shui)(shui)炮泵，還能在消防(fang)(fang)控(kong)制(zhi)室直接(jie)啟(qi)(qi)動(dong)(dong)(dong)(dong)(dong)消防(fang)(fang)泵和防(fang)(fang)排(pai)煙(yan)風(feng)機。