Smoke detector capable of avoiding false alarm

The invention discloses a smoke detector capable of avoiding false alarm. The smoke detector capable of avoiding the false alarm includes a first light source, a second light source, a optical receiver, a signal adjusting circuit and a driving and adjusting circuit, wherein the first light source is...

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Bibliographic Details
Main Authors ZHOU CHENGZHENG, JIANG MENGQIAN
Format Patent
LanguageChinese
English
Published 12.04.2019
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The invention discloses a smoke detector capable of avoiding false alarm. The smoke detector capable of avoiding the false alarm includes a first light source, a second light source, a optical receiver, a signal adjusting circuit and a driving and adjusting circuit, wherein the first light source is used for generating a first type of light dominated by first wave length, the second light source is used for generating a second type of light dominated by second wave length, and the optical receiver generates first initial light detecting signals according to the first scattered light of the first type of light and generates second initial light detecting signals according to the second scattered light of the second type of light, wherein the photocurrent efficiency of the optical receiver on the first wave length is different from the photocurrent efficiency of the optical receiver on the second wave length; the signal adjusting circuit is used for amplifying the second initial light detecting signals to gener
Bibliography:Application Number: CN201910101039