【正文】 ire alarm system is by the trigger devices, fire alarm, fire alarm devices and other auxiliary functions of the device with the position of a button fire alarm system fire alarm system. It can fire early stages of burning smoke, heat and light radiation and other physical quantities, by temperature. Photographic and other smoke and fire detectors into electrical signals, transmitted to the fire alarm controller, and also shows the site of the fire, the fire record of the time. General fire alarm system and automatic sprinkler system, fire hydrant systems, smoke control systems, ventilation systems, air conditioning system, fire doors, fire shutter, smoke screen and other related equipment interaction, automatically or manually issue mands to start the corresponding device. (A) of the trigger devices in automatic fire alarm system, automatic or manual fire alarm signal devices generate called trigger conditions, including fire detectors and manual fire alarm button. Fire detector is able to fire parameters (smoke, temperature, flame radiation, gas concentration, etc.) response, and automatically generate a fire alarm signal devices. Fire response parameters according to different fire detectors into heat detectors, smoke detector, sensitive fire detectors, bustible gas detectors and fire detectors five basic types of posite. Different types of fire detectors for different types of fires and different places. Manual fire alarm button fire alarm signal generated manually start the automatic fire alarm system devices, automatic fire alarm system is an indispensable ponent of the. (B) the fire alarm device in automatic fire alarm system to receive, display and transmit fire alarm signals, and can send control signals and control functions with other auxiliary equipment as the fire alarm device instructions. Fire alarm control is one of the most basic kind. Charged with the fire alarm control fire detectors provide a stable working power。 Zhishi specific location and alarm time。 近年來，紅外線報警器已經(jīng)成為報警領(lǐng)域的一個熱點，由于其采用的是不可見的紅外線探測，所以具有隱蔽性好、安全等特點。而且器件的檢測靈敏度與紅外波長有關(guān)。本文設(shè)計的是被動式熱釋電紅外探測器。家庭火災(zāi)一旦發(fā)生，很容易出現(xiàn)撲救不及時、滅火器材缺乏及在場人驚慌失措、逃生遲緩等不利因素，最終導(dǎo)致重大生命財產(chǎn)損失。在調(diào)查火災(zāi)起因的時候，絕大多數(shù)發(fā)生火災(zāi)家庭的當(dāng)事人說，以前總覺得火災(zāi)是人家的事情，與自己離得很遠，沒有想到這一次竟然會發(fā)生在自己的頭上。 火災(zāi)自動報警系統(tǒng)是人們?yōu)榱嗽缙诎l(fā)現(xiàn)通報火災(zāi)，并及時采取有效措施，控制和撲滅火災(zāi)，而設(shè)置在建筑物中或其它場所的一種自動消防設(shè)施，是人們同火災(zāi)作斗爭的有力工具。這些煙、熱和光可以通過探測器轉(zhuǎn)變?yōu)殡娦盘枅缶蚴棺詣訙缁鹣到y(tǒng)啟動，及時撲滅火災(zāi)。 系統(tǒng)組成 火災(zāi)自動報警系統(tǒng)是由觸發(fā)器件、火災(zāi)報警裝置、火災(zāi)警報裝置以及具有其它輔助功 能的裝置組成火災(zāi)報警系統(tǒng)按鈕的火災(zāi)報警系統(tǒng)。 (一 )觸發(fā)器件 在火災(zāi)自動報警系統(tǒng)中，自動或手動產(chǎn)生火災(zāi)報警信號的器件稱為觸發(fā)件，主要包括火災(zāi)探測器和手動火災(zāi)報警按鈕。手動火災(zāi)報警按鈕是手動方式產(chǎn)生火災(zāi)報警信號、啟動火災(zāi)自動報警系統(tǒng)的器件，也是火災(zāi)自動報警系統(tǒng)中不可缺少的組成部分之一。是火災(zāi)報警系統(tǒng)中的核心組成部分。 (三 )火災(zāi)警報裝置 在火災(zāi)自動報警系統(tǒng)中，用以發(fā)出區(qū)別于環(huán)境聲、光的火災(zāi)警報信號的裝置稱為火災(zāi)警報裝置。消防控制設(shè)備一般設(shè)置在消防控制中心，以便于實行集中統(tǒng)一控制。 參考文獻： Rado G T , Folen V J . Observation of the magically inducedmagoelectric effect and evidence for antiferromagic domains[J ] . Phys. Rev. Lett . , 1961 , 7 : 310.