发明名称 A UNIT WITH REMOTE TEST INITIATION APPARATUS
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 GB2214307(A) 申请公布日期 1989.08.31
申请号 GB19880023228 申请日期 1988.10.04
申请人 * PITTWAY CORPORATION 发明人 NICHOLAS A * BELLAVIA;DANIEL J * BIRK;FRED J * CONFORTI;RONALD * SISSELMAN
分类号 G08B17/11;G08B17/10;G08B29/00;G08B29/14;H04Q9/14 主分类号 G08B17/11
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