Open Scattered Light Smoke Detector Together With A Mobile Communication Device For Such An Open Scattered Light Smoke Detector For The Reception Of Detector Data And For Transmitting Update Data
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United States of America Patent
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Issued Date -
Nov 10, 2016
app pub date -
May 6, 2016
filing date -
May 6, 2015
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Abstract
An open scattered light smoke detector may include a light transmitter for emitting light, a light receiver spectrally matched to the light transmitter, and a control unit that actuates the light transmitter, using a pulsed signal sequence, to emit light pulses, evaluates a signal sequence received by the light receiver, and outputs a fire alarm if the received signal strength exceeds a minimum value for smoke concentration. The control unit may actuate the light transmitter with a binary data signal that encodes internal detector data, and/or may analyze a binary coded signal sequence received by the light receiver for a valid encoding of update data for the detector, and then load the validated update data. The detector data may include received signal strength data, optical path calibration data, configuration, operating or encryption data, a positional specification for a detector mounting site, a serial number, and/or a detector bus address.
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