Gas appliance judgment apparatus and method
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United States of America Patent
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Jun 28, 2011
Grant Date -
Jan 15, 2009
app pub date -
Jul 8, 2008
filing date -
Jul 9, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A gas appliance judgment apparatus and method by which a type of gas appliance in use and the existence of a gas leak can be identified. In operation, noise is removed from measured instantaneous flow volume, whereupon the “length”, “initial flow volume” and “sequence of transited regions” of the variable portion of the flow volume and the “length”, “average value” and “gradient” of the flat portion of the flow volume are extracted. A rule having characteristics data which matches the characteristics of the variable portion and the flat portion of the flow volume is then searched, and points are added respectively for the type of gas appliance and for the existence of a gas leak. When the added points are not less than a previously established threshold value, then the type of gas appliance in use is determined, and appliance type information is output as a judgment result.
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Family
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