Unverified85% confidenceDecision RuleTime unknown
标准壁挂PIR探测角度约90-110°、距离8-12m，走廊等狭长空间应选幕帘型（探测角5-15°、距离可达15m）而非广角型，否则覆盖不到纵深
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85%
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Long-term
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Unverified标准壁挂式双鉴探测范围约12m/90-110度扇形,长走廊场景应选幕帘型(窄角3-5度、探测距离15m+),空旷大厅选广角吸顶型(360度、半径6-8m)92% similarUnverified探测角度越广（如180°吸顶款）单点覆盖面积越大但边缘灵敏度和探测距离下降，90°~110°的墙角壁挂款探测距离更远（8~12米）适合长走廊，房间中央防护优选吸顶360°88% similarUnverified探测角度与安装方式需匹配：吸顶式一般为360度但探测半径较小（约5-6m），壁挂式为水平110-120度扇形但纵深可达8-12m，长走廊选壁挂、开阔房间中心选吸顶86% similarUnverified覆盖范围看探测角度和半径：家用标准型号一般为110°/12m，走廊场景应选窄角幕帘型（约6°/长距离），大客厅选广角型；单个探测器覆盖不足时用多探测器组网比强行选超大范围单机更可靠84% similarUnverified探测角度大(如110度广角)覆盖范围广但边缘距离短，探测角度窄的幕帘型(narrow curtain)距离远适合走廊过道，客厅用广角、走廊用幕帘82% similar
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