发明名称 |
SMOKE ALARM WITH TEMPORAL EVALUATION OF A BACKSCATTER SIGNAL, TEST METHOD FOR THE FUNCTIONAL CAPABILITY OF A SMOKE ALARM |
摘要 |
The smoke alarm (100) has a light transmitter (111) attached to a mounting surface of a printed circuit board (105) and transmitting an illuminating light (111a). A light receiver (112) is attached to the mounting surface adjacent to the light transmitter, and receives a measurement light (112a), which results from back-scattering of the illumination light at a measurement object located in a detection space (115). A data processing device (135) is coupled to an output of the light receiver and evaluates temporal changes of an output signal provided by the light receiver. An independent claim is also included for a method for detecting a functional capability of a smoke alarm. |
申请公布号 |
HK1153299(A1) |
申请公布日期 |
2014.01.17 |
申请号 |
HK20110107223 |
申请日期 |
2011.07.12 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
LOEPFE, MARKUS;TENCHIO, GEORGES A.;MUELLER, KURT;VOLLENWEIDER, WALTER |
分类号 |
G08B |
主分类号 |
G08B |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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