发明名称 |
APPARAT TIL IVAERKSAETTELSE AF AFPROEVNING MED KONTINUERLIGT ELLER IMPULSERET INDGANGSSIGNAL |
摘要 |
A system for testing a remotely located sensing unit includes a photosensor located within the sensing unit. A control beam of incident electromagnetic energy can be provided from a remotely located portable source such as a flashlight. Directing the beam of radiant energy from the flashlight against the sensor in the unit causes the unit to initiate a test sequence. The unit can be equipped with a photo-detector to terminate an alarm generated in response to a sensed condition. The unit can include a sonic detector. Control circuitry in the unit can decode a sensed encoded incident beam to minimize false tests or to provide multiple remotely initiated functions. |
申请公布号 |
DK435489(D0) |
申请公布日期 |
1989.09.01 |
申请号 |
DK19890004354 |
申请日期 |
1989.09.01 |
申请人 |
PITTWAY CORPORATION |
发明人 |
BELLAVIA, NICHOLAS J.;BIRK, DANIEL J.;CONFORTI, FRED J.;SISSELMAN, RONALD J. |
分类号 |
G08B17/11;G08B17/10;G08B29/00;G08B29/14;H04Q9/14 |
主分类号 |
G08B17/11 |
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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