Multiple-optical-axis photoelectric sensor system, multiple-optical-axis photoelectric sensor system control method, program, and recording medium
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United States of America Patent
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Jan 16, 2018
Grant Date -
Sep 17, 2015
app pub date -
Feb 19, 2015
filing date -
Mar 14, 2014
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Abstract
A start-up time of a production facility is shortened while generation of a muting error is suppressed, whereby productivity is improved. A multiple-optical-axis photoelectric sensor system includes a projector, an optical receiver, a light blocking determination unit configured to make a light blocking determination whether each of optical axes formed between the projector and the optical receiver is in a light blocking state, and a muting processor configured to temporarily disable the light blocking determination on condition that a detection signal input from an external muting instrument changes according to a predetermined sequence. The muting processor determines the sequence of the detection signal from the muting instrument during the muting by dividing the sequence into a plurality stages. The muting processor accumulates and analyzes measurement information acquired in each stage, and decides an optimum setting value for a muting operation condition based on an analysis result.
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