Unverified83% confidenceTradeoffTime unknown
检测灵敏度与误报率是矛盾:人体/毫米波灵敏度调高会把窗帘飘动、宠物走动误判为人在;有宠物家庭应选支持'宠物免疫'(Pet Immunity,通常按重量25kg以下过滤)的PIR传感器
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83%
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Long-term
Relevance
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Unverified报警灵敏度与误报率的权衡:红外人体探测器灵敏度越高越不易漏报,但宠物、空调风、阳光直射都会触发误报,有宠物家庭应选带宠物免疫(pet-immune,通常<25kg免触发)的PIR探测器91% similarUnverified带宠物的家庭应选支持宠物免疫(Pet Immune)的PIR人体传感器,通常标注可忽略25kg以下动物,否则宠物走动会持续误报89% similarUnverified被动红外(PIR)探测器对宠物误报率高,养猫狗家庭应选带宠物免疫功能(Pet Immunity,通常标称免疫≤25kg)的型号,或改用门磁+振动组合避开活动区域89% similarUnverified养宠家庭应选带宠物免疫(pet-immune)功能的红外探测器,可忽略25kg以下动物,否则宠物走动会频繁触发误报导致关闭系统失去意义87% similarUnverified有宠物家庭必须选带「宠物免疫」的PIR传感器(一般标称抗25kg以下宠物),普通PIR会被猫狗触发导致频繁误报最终被用户关掉形同虚设87% similar
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