Test initiation apparatus with continuous or pulse input
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United States of America Patent
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May 2, 1989
Issued Date -
N/A
app pub date -
Feb 26, 1988
filing date -
Jan 4, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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