Based on the characteristics of fire in high - rise buildings , the papers introduces the work principle of scatter photoelectric style fire explorer , discusses the work courses of automatic alarm , and analyzed that the sense smoke explorer system with prolonged work procedure is much more reliable than that without prolonged work procedure in the fire automatic alarm . whats more the computer program graph for auto - alarm system is also worked out . 4figs . ， 5refs 依據高層建筑火災性質和特點，介紹了高層建筑中用散射光式光電感煙檢測器檢測火災的工作原理，討論了自動控制報警的工作過程.分析比較了設有延時工作過程的感煙探測系統比沒有延時工作過程的系統,火災報警的可靠性大大增強.并編制了自動報警系統計算機程序框圖,本文討論的高層建筑中火災的探測與自控研究，對于不同建筑結構和不同要求的火災控制報警系統具有參考價值和社會經濟意義.圖5 .參5
