Redundant monitoring
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United States of America Patent
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Jul 20, 2010
Grant Date -
Jun 11, 2009
app pub date -
Dec 7, 2007
filing date -
Dec 7, 2007
priority date (Note) -
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Abstract
Methods, mediums, systems, and devices for redundant monitoring are disclosed. One method of providing redundancy in an environmental monitoring device includes combining a first sensor, one or more redundant sensors, and a plurality of control logic components; monitoring a selected environmental condition using the plurality of sensors; measuring the selected environmental condition using the plurality of sensors each reporting to a particular control logic component among the plurality of control logic components, each of the plurality of control logic components monitoring a sequence of such measurements; and correlating corresponding monitored measurements from the sequence of measurements of each of the plurality of control logic components and determining whether a difference exists between the corresponding monitored measurements of each of the plurality of control logic components.
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