Fiber optic personnel safety systems and methods of using the same
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United States of America Patent
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Aug 15, 2017
Issued Date -
N/A
app pub date -
Jan 28, 2015
filing date -
Feb 18, 2010
priority date (Note) -
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Abstract
A personnel monitoring system. The personnel monitoring system includes a host node having an optical source for generating optical signals, and an optical receiver. The personnel monitoring system also includes a plurality of fiber optic sensors for converting at least one of vibrational and acoustical energy to optical intensity information, each of the fiber optic sensors having: (1) at least one length of optical fiber configured to sense at least one of vibrational and acoustical energy; (2) a reflector at an end of the at least one length of optical fiber; and (3) a field node for receiving optical signals from the host node, the field node transmitting optical signals along the at least one length of optical fiber, receiving optical signals back from the at least one length of optical fiber, and transmitting optical signals to the optical receiver of the host node.
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International Classification(s)
- G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
- H04Q:SELECTING
- H04B:TRANSMISSION
- H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....
- G08G:TRAFFIC CONTROL SYSTEMS
- G01S:RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMI....
- G01D:MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VAR....
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